CN110403734B - Clamping device and clamping assembly - Google Patents
Clamping device and clamping assembly Download PDFInfo
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- CN110403734B CN110403734B CN201910662053.2A CN201910662053A CN110403734B CN 110403734 B CN110403734 B CN 110403734B CN 201910662053 A CN201910662053 A CN 201910662053A CN 110403734 B CN110403734 B CN 110403734B
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- clamping
- clamping arm
- arm
- penetrating
- base
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 122
- 230000009471 action Effects 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims description 27
- 238000010079 rubber tapping Methods 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 3
- 201000001943 Tricuspid Valve Insufficiency Diseases 0.000 description 7
- 210000000591 tricuspid valve Anatomy 0.000 description 6
- 206010044640 Tricuspid valve incompetence Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 206010039163 Right ventricular failure Diseases 0.000 description 2
- 210000003709 heart valve Anatomy 0.000 description 2
- 208000002815 pulmonary hypertension Diseases 0.000 description 2
- 210000005245 right atrium Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 206010003445 Ascites Diseases 0.000 description 1
- 206010013012 Dilatation ventricular Diseases 0.000 description 1
- 206010019705 Hepatic pain Diseases 0.000 description 1
- 208000006083 Hypokinesia Diseases 0.000 description 1
- 206010024119 Left ventricular failure Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 208000022531 anorexia Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 206010061428 decreased appetite Diseases 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001969 hypertrophic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000005241 right ventricle Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 230000002861 ventricular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The application provides a clamping device and a clamping assembly, which mainly comprise a base, a first clamping arm and a second clamping arm pivoted with the base, an elastic piece arranged on the base, and an actuating piece penetrating the base and respectively connected with the first clamping arm and the second clamping arm, wherein when the actuating piece is stressed, the elastic piece can generate elastic restoring force and drive the first clamping arm and the second clamping arm to respectively pivot relative to the base so as to move from respective clamping positions to opening positions so as to be positioned on a preset part of human tissues; when the stress of the actuating part is relieved, the first clamping arm and the second clamping arm can respectively pivot relative to the base under the action of the elastic restoring force, and return to the clamping position from the opening position so as to clamp the preset part of the human tissue.
Description
Technical Field
The embodiment of the application relates to the field of medical equipment, in particular to a clamping device and a clamping assembly of a heart valve annulus.
Background
The tricuspid valve is positioned at the right atrioventricular orifice, and the common occurrence is that the tricuspid valve is closed incompletely, namely, blood flows back from the right ventricle to the right atrium in the systolic period, so that the right atrium is enlarged in height, the pressure is increased, and venous blood backflow is blocked. Right heart failure is likely to occur due to the increased right ventricular load, compensatory and hypertrophic.
Tricuspid regurgitation is generally caused by pulmonary hypertension, right ventricular enlargement and tricuspid valve annulus dilation, and clinically, the symptoms of right heart failure such as hypodynamia, ascites, edema, liver pain, dyspepsia and anorexia are aggravated after tricuspid valve regurgitation usually occurs due to the etiology of tricuspid valve regurgitation (left heart failure, pulmonary hypertension and the like). Mild tricuspid regurgitation has no obvious clinical symptoms, but requires surgical treatment when there is severe regurgitation.
Traditional treatments include medication, and surgical methods with corresponding surgical indications. Among other surgical methods, valve replacement and valve repair are also included. In surgical procedures, typical open chest and open heart procedures are too invasive and require the establishment of extracorporeal circulation with a high incidence of complications and risk of infection. Many patients are intolerant of significant surgical risks and can only wait for death without being able to wait.
At present, several products for treating tricuspid regurgitation through a catheter have been clinically applied, but in the experimental stage, the products are not applied to maturity, and the respective technologies are limited.
In view of this, it is an object of the present application to overcome the limitations of the prior art.
Disclosure of Invention
In view of the above problems, the present application is mainly directed to a clamping device and a clamping assembly, which have the advantages of simple structure and convenient operation, and can be applied to clamping operation of human tissues with different thicknesses, and the application range is wide.
Another object of the present application is to provide a clamping device and a clamping assembly, which utilize a detachable structure design, so that a part of the assembly can be removed from the clamping device after the clamping operation is completed, and only a small part of the assembly is kept in the human body, so as to improve the comfort level of the patient.
Still another object of the present application is to provide a clamping device and a clamping assembly, which can provide accurate clamping force by using a torsion spring to drive a clamping arm, and is not easy to clamp human tissues.
To achieve the above and other related objects, one embodiment of the present application provides a clamping device for clamping a predetermined portion of a human tissue, comprising: a base having a pivot; a first clamping arm pivoted to the pivoting member and having a first clamping portion; the second clamping arm is pivoted to the pivoting piece and provided with a second clamping part; an elastic piece which is arranged on the base and contacts the first clamping arm and the second clamping arm; the actuating piece is arranged in the base in a penetrating manner and is respectively connected with the first clamping arm and the second clamping arm; when the actuating piece is not stressed, the first clamping arm and the second clamping arm are respectively positioned at the respective clamping positions under the action of the elastic piece; when the actuating piece is acted by a first acting force, the first clamping arm and the second clamping arm are respectively driven by the actuating piece to pivot relative to the pivoting piece, so that the first clamping part and the second clamping part are respectively moved from the respective clamping positions to the opening positions so as to be respectively positioned on the preset part of the human tissue, and the elastic piece generates elastic restoring force; when the first acting force is released, the first clamping arm and the second clamping arm respectively pivot relative to the pivoting piece under the action of the elastic restoring force, so that the first clamping part and the second clamping part respectively return to the clamping position from the respective open positions, and the preset part of the human tissue is clamped.
Optionally, in an embodiment of the present application, a first arm root portion and a second arm root portion are further provided at ends of the first arm and the second arm near the base, a first arm end portion and a second arm end portion are provided at ends of the first arm and the second arm far away from the base, when the first arm and the second arm are respectively in the open position, the first arm end portion and the second arm end portion are far away from each other, so that the first clamping portion and the second clamping portion are respectively attached to the preset portion, and when the first arm and the second arm are respectively in the clamping position, the first arm end portion and the second arm end portion are mutually close, and the first clamping portion and the second clamping portion cooperate to form a holding cavity for clamping and holding the preset portion.
Optionally, in an embodiment of the present application, the first clamping portion further has a first limiting portion, and the second clamping portion further has a second limiting portion, where when the first clamping arm and the second clamping arm are respectively located at the clamping positions, the first limiting portion cooperates with the base, and the second limiting portion is used for defining a size of the accommodating cavity.
Optionally, in an embodiment of the present application, the first limiting portion and the second limiting portion are respectively a limiting frame.
Optionally, in an embodiment of the present application, the actuating member is detachable from the clamping device, and the actuating member includes a first pull rope connecting the base and the first clamping arm, and a second pull rope connecting the base and the second clamping arm, wherein the base is provided with a first penetrating portion and a second penetrating portion, and the first clamping arm and the second clamping arm are further provided with a third penetrating portion and a fourth penetrating portion, respectively; the first pull rope is in a bending state to form a first bending part, the first pull rope is movably arranged in a first penetrating part of the base in a penetrating way, two first tail ends of the first pull rope extend out from the proximal end of the first penetrating part, and the first bending part extends out from the distal end of the first penetrating part and is arranged in the third penetrating part on the first clamping arm in a penetrating way; when the two first ends are simultaneously acted by the first acting force and move from the distal end of the first penetrating part to the proximal end direction of the first penetrating part, the first bending part penetrating into the third penetrating part drives the first clamping arm to pivot relative to the base so as to enable the first clamping part to move from the clamping position to the open position, and when one of the two first ends is released, the first pull rope is pulled to separate from the first penetrating part and the third penetrating part respectively so as to be removed from the clamping device; the second stay rope is in a bending state to form a second bending part, the second stay rope is movably arranged in a second penetrating part of the base in a penetrating way, two second tail ends of the second stay rope extend out from the proximal end of the second penetrating part, and the second bending part extends out from the distal end of the second penetrating part and is arranged in the fourth penetrating part on the second clamping arm in a penetrating way; when the two second ends are simultaneously acted by the first acting force and move from the distal end of the second penetrating part to the proximal end direction of the second penetrating part, the second bending part penetrating into the fourth penetrating part drives the second clamping arm to pivot relative to the base so as to enable the second clamping part to move from the clamping position to the open position, and when one of the two second ends is released, the second pulling rope is pulled to enable the second pulling rope to be separated from the second penetrating part and the fourth penetrating part respectively, so that the second pulling rope is removed from the clamping device.
Optionally, in an embodiment of the present application, the first penetrating portion and the second penetrating portion are respectively formed on two opposite sides of the base, and the third penetrating portion and the first penetrating portion are respectively formed on the first clamping arm end and the second clamping arm end and are respectively formed on a closed ring structure or a C-ring structure.
Optionally, in an embodiment of the application, the base further comprises a coupling element detachably engaging the pivot element.
Optionally, in an embodiment of the present application, the coupling member is detachably engaged with the pivoting member by means of a first conveying member.
Optionally, in an embodiment of the present application, the first penetrating portion and the second penetrating portion are formed on the bonding element.
Optionally, in an embodiment of the present application, the first penetrating portion and the second penetrating portion are further formed with guiding structures respectively, so as to define a pulling direction of the first pull rope and the second pull rope under the action of the first acting force.
Optionally, in an embodiment of the present application, the first clamping arm further has a first auxiliary structure, the third penetrating portion is disposed on the first auxiliary structure, and the first pull rope passes through the first auxiliary structure to indirectly drive the first clamping arm to pivot relative to the base; the second clamping arm is further provided with a second auxiliary structure, the fourth penetrating part is arranged on the second auxiliary structure, and the second pull rope indirectly drives the second clamping arm to pivot relative to the base through the second auxiliary structure.
Optionally, in an embodiment of the present application, the first auxiliary structure and the second auxiliary structure are a hinge structure or a lever structure.
Optionally, in an embodiment of the present application, the elastic member is a torsion spring disposed on the pivot member.
Optionally, in an embodiment of the present application, bio-fusion lines are further wound on the first clamping arm and the second clamping arm respectively.
Another embodiment of the present application further provides a clamping assembly for clamping a preset portion of a human tissue, which includes the clamping device described in the foregoing embodiments; an auxiliary support; wherein the auxiliary support provides auxiliary support to the preset portion of the human tissue; the first acting force is applied to the actuating piece, so that the first clamping arm and the second clamping arm are respectively pivoted relative to the pivoting piece under the driving of the actuating piece, the first clamping part and the second clamping part are respectively moved to the open position from the respective clamping positions, so that the first clamping part and the second clamping part are respectively positioned on the preset positions, and the elastic piece generates elastic restoring force; and releasing the first acting force to enable the first clamping arm and the second clamping arm to pivot relative to the pivoting piece under the action of the elastic restoring force, so that the first clamping part and the second clamping part return to the clamping positions from the respective opening positions respectively, the preset part of the human tissue and the auxiliary supporting piece are clamped, and the preset part of the human tissue is clamped between the auxiliary supporting piece and the clamping device.
Optionally, in an embodiment of the present application, the preset portion includes a first side and a second side disposed opposite to each other, wherein the auxiliary support may be acted on by a second force to enter the first side of the preset portion from the second side of the preset portion.
Optionally, in an embodiment of the present application, the auxiliary support includes a self-tapping spring wire structure, and the self-tapping spring wire structure is rotatable relative to the human tissue under the action of the second force, so that a part of the self-tapping spring wire structure is screwed into the first side of the preset portion from the second side of the preset portion, thereby positioning the self-tapping spring wire structure on the human tissue.
Optionally, in an embodiment of the present application, the auxiliary support comprises a trawl structure, and the auxiliary support further comprises: the deformation unit is arranged on the first side of the preset part, and can deform on the first side to be switched from a contracted state to an expanded state, wherein the cross-sectional diameter of the deformation unit in the contracted state is smaller than the diameter of a puncture hole preset on the human tissue, and the cross-sectional diameter of the deformation unit in the expanded state is larger than the diameter of the puncture hole; the cross-section diameter of the connecting unit is smaller than that of the puncture hole, so that the connecting unit extends from the deformation unit, penetrates through the puncture hole from the first side of the preset part and extends out of the second side of the preset part, the connecting unit can enable the deformation unit in the contracted state to penetrate through the puncture hole from the second side of the preset part to the first side of the preset part under the action of the second action force, and the connecting unit can enable the deformation unit in the expanded state to be enabled to move from the first side of the preset part to the second side under the action of the third action force under the action of the connecting unit, so that the deformation unit abuts against the preset part on the first side.
Optionally, in an embodiment of the application, the auxiliary support comprises a top bead structure.
Therefore, the clamping device provided by the embodiment of the application utilizes the elastic piece to be matched with the actuating piece, so that the elastic piece can be deformed to generate elastic restoring force when the actuating piece is stressed, the two clamping arms of the clamping device can pivot relative to the base under the driving of the actuating piece and respectively move from the respective clamping positions to the open positions so as to be respectively positioned on the preset parts of human tissues, and when the stress on the actuating piece is relieved, the two clamping arms of the clamping device can respectively return to the clamping positions from the respective open positions under the driving of the elastic restoring force so as to clamp the preset parts of the human tissues.
Furthermore, after the clamping operation is completed, a part of the base and the actuating element can be removed from the clamping device, so that only a small part of the components are reserved in the human body, thereby improving the use comfort of the patient and reducing the infection risk.
In addition, the auxiliary supporting piece is matched with the clamping device to clamp the preset part of the human tissue between the auxiliary supporting piece and the clamping device, so that the human tissue can be prevented from being torn.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIGS. 1A and 1B are schematic views showing embodiments of the clamping device according to the present application in different usage states;
fig. 2A and 2B are schematic exploded views of fig. 1A and 1B, respectively;
FIG. 3 is a schematic view showing a partial structure of a clamping device according to the present application;
FIG. 4 is a side view showing an embodiment of the base of the present application;
FIGS. 5A and 5B are side views showing various embodiments of the clamping device of the present application;
FIGS. 6A and 6B are schematic views showing another embodiment of the clamping device of the present application;
FIGS. 7A and 7B are schematic views showing an embodiment of a clamping assembly according to the present application;
FIGS. 8A-8D are schematic views showing another embodiment of the clamping assembly of the present application; and
Fig. 9A to 9E are schematic views showing a clamping assembly according to still another embodiment of the present application.
Element labels
1. Second limiting portion of clamping device 1311
11. Base 132 second arm root
111. The second arm end of the pivot member 133
112. A fourth penetrating portion of the first penetrating portion 134
113. Second auxiliary structure of second penetrating part 135
114. Elastic member of the coupling member 14
115. Guide structure 15 actuator
12. First draw cord of first clamp arm 151
121. First bending part of first clamping part 1511
1211. First end of the first limit part 1512
122. First arm root 152 second pull cord
123. The first clamping arm end 1521 is provided with a second bending part
124. Second end of the third penetrating portion 1522
125. First auxiliary structure 16 biological fusion line
13. Second gripper arm 21 first conveying member
131. Second clamping portion 211 first interface
4. Auxiliary support 212 second interface
41. Second conveying member of deformation unit 22
42. Connection unit 5 human tissue
511. The first side 51 is provided with a preset portion
512. Second side 513 puncture hole
Detailed Description
In order to better understand the technical solutions in the embodiments of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the present application, shall fall within the scope of protection of the embodiments of the present application.
In the present description, the term "distal" refers to the end of the gripping device that is remote from the operator, and the term "proximal" refers to the end of the gripping device that is proximal to the operator.
The present application mainly provides a clamping device and a clamping assembly, which can be used for clamping a preset portion 51 (refer to fig. 7A to 9E) of a human tissue 5, in this embodiment, the human tissue 5 is, for example, a heart valve annulus, specifically, the clamping device 1 provided by the present application belongs to a product design for treating tricuspid regurgitation through catheter access, the design is similar to a surgical Kay' S operation method, and the purpose of reducing tricuspid regurgitation is achieved by suturing two ends of a posterior valve of the tricuspid valve to make the tricuspid valve bivalve so as to shorten the whole circumference of the annulus.
Referring to fig. 1A, fig. 1B, fig. 2A, and fig. 2B, fig. 1A and fig. 1B are schematic views of an embodiment of the clamping device 1 of the present application in different usage states, and fig. 2A and fig. 2B are schematic exploded views of the clamping device 1 of the present application in different usage states.
As shown in the drawings, the clamping device 1 of the present application mainly includes a base 11, a first clamping arm 12, a second clamping arm 13, an elastic member 14, and an actuating member 15. The base 11 is provided with a pivot 111, and the first clamping arm 12 and the second clamping arm 13 are respectively pivoted to the pivot 111 of the base 11 and respectively have a first clamping portion 121 and a second clamping portion 131. In the present embodiment, the opposite ends of the first arm 12 include a first arm root 122 and a first arm end 123, wherein the first arm root 122 is an end close to the base 11 for providing the first arm 12 pivotally connected to the pivot 111, the first arm end 123 is an end far from the base 11, and the first clamping portion 121 is formed between the first arm root 122 and the first arm end 123. Similarly, the opposite ends of the second arm 13 also include a second arm root 132 and a second arm end 133, wherein the second arm root 132 is an end close to the base 11 for providing the second arm 13 pivotally connected to the pivot 111, the second arm end 133 is an end far from the base 11, and the second clamping portion 131 is formed between the second arm root 132 and the second arm end 133.
The elastic member 14 is disposed on the base 11 and contacts the first clamping arm 12 and the second clamping arm 13. In the present embodiment, the elastic member 14 is, for example, a torsion spring disposed on the pivot member 111 of the base 11, wherein two ends of the torsion spring can be fixedly connected with the first arm root 122 and the second arm root 132, respectively, or two ends of the torsion spring can be only contacted without directly connecting the first arm root 122 and the second arm root 132, depending on practical requirements. In addition, the elastic member 14 formed by the torsion spring structure can provide better elasticity and more uniform torsion. It should be noted that the structural design and the number of the elastic members 14 are not limited to the drawings, and other designs may be applied to the present application.
The actuating member 15 is disposed through the base 11 and is respectively connected to the first arm 12 and the second arm 13 to drive the first arm 12 and the second arm 13 to pivot relative to the pivot 111. Specifically, when the working member 15 is not stressed, the first clamping arm 12 and the second clamping arm 13 can be respectively located at respective clamping positions under the action of the elastic member 14 (as shown in fig. 1A and 2A); when the actuating member 15 receives the first acting force, the first clamping arm 12 and the second clamping arm 13 are respectively pivoted relative to the pivot member 111 under the driving of the actuating member 15, so that the first clamping portion 121 and the second clamping portion 131 are respectively moved from the respective clamping positions to the open positions to be respectively positioned on the predetermined portion 51 of the human tissue 5, and meanwhile, the elastic member 14 can be deformed to generate an elastic restoring force along with the pivoting of the first clamping arm 12 and the second clamping arm 13 relative to the pivot member 111 (as shown in fig. 1B and 2B). When the first force applied to the actuating member 15 is released, the first clamping arm 12 and the second clamping arm 13 can pivot relative to the pivot member 111 under the elastic restoring force generated by the elastic member 14, so that the first clamping portion 121 and the second clamping portion 131 return from the open positions to the clamping positions, respectively, thereby clamping the predetermined portion 51 of the human tissue 5 between the first clamping portion 121 and the second clamping portion 131 (as shown in fig. 1A and 2A).
Specifically, when the first arm 12 and the second arm 13 are respectively in the open positions (as shown in fig. 1B and 2B), the first arm end 123 of the first arm 12 and the second arm end 133 of the second arm 13 are in a state of being away from each other, so that the first arm 12 and the second arm 13 are in a fan-shaped open state, thereby providing that the first clamping portion 121 and the second clamping portion 131 are respectively attached to the preset portion 51, whereas when the first arm 12 and the second arm 13 are respectively in the clamping positions (i.e. as shown in fig. 1A and 2A), the first arm end 123 of the first arm 12 and the second arm end 133 of the second arm 13 are close to each other, so that the first clamping portion 121 and the second clamping portion 131 cooperatively cooperate to form a receiving cavity for clamping and receiving the preset portion 51.
Referring to fig. 3, in the present application, the first clamping portion 121 further includes a first limiting portion 1211, and the second clamping portion 131 also includes a second limiting portion 1311, wherein when the first clamping arm 12 and the second clamping arm 13 are respectively located at the clamping positions, the second limiting portion 1311 of the second clamping arm 14 cooperates with the base 11 through the first limiting portion 1211 of the first clamping arm 12 to define the accommodating size of the accommodating cavity. In an embodiment, the first limiting portion 1211 and the second limiting portion 1311 are respectively limiting frames (including the limiting frame 1211A located at the middle section of the first clamping arm 12 and the limiting frame 1311A located at the middle section of the second clamping arm 13), and with this frame structure design, more human tissues 5 can be accommodated between the first clamping portion 121 and the second clamping portion 131 at the clamping position, and the clamping firmness can be improved.
In another embodiment, the bio-blend wires 16 can be wound around the first clamping arm 12 and the second clamping arm 13, respectively, so that the first member 12 and the second clamping arm 13 can be better contacted and fused with the human tissue 5.
In the embodiment of the application, the actuating member 15 is removed from the clamping device 1 as a whole, specifically, the actuating member 15 further includes a first pull cord 151 connecting the base 11 and the first clamping arm 12 and a second pull cord 152 connecting the base 11 and the second clamping arm 13, in this embodiment, the first pull cord 151 and the second pull cord 152 are disposed on opposite sides of the base 11, and accordingly, the opposite sides of the base 11 are further provided with a first penetrating portion 112 and a second penetrating portion 113 (see fig. 4, 5A and 5B, respectively), and meanwhile, the first clamping arm 12 and the second clamping arm 13 are further provided with a third penetrating portion 124 and a fourth penetrating portion 134, respectively.
The first pull cord 151 may be folded (e.g., folded in half) to form the first folded portion 1511, where the first pull cord 151 in a folded state is movably disposed in the first penetrating portion 112 of the base 11, and two first ends 1512 of the first pull cord 151 may protrude from a proximal end of the first penetrating portion 112 and be exposed, and at the same time, the first folded portion 1511 of the first pull cord 151 protrudes from a distal end of the first penetrating portion 112 and is disposed in the third penetrating portion 124 of the first arm 12. In the present embodiment, the first penetrating portion 112 is, for example, a channel structure formed on the base 11, and the third penetrating portion 124 is, for example, a closed loop structure or a C-loop structure formed on the first clamping arm end 123, so that the first bending portion 1511 of the first pull cord 151 is penetrated therein. It should be noted that, the third penetrating portion 124 may be disposed at a middle position (for example, on the limiting frame 1211A) or other positions of the first arm 12 according to practical requirements, and only needs to achieve the technical effect of enabling the first pull cord 151 to pivot the first arm 12 to a predetermined position (i.e. an open position) relative to the pivot 111 under the action of the first actuation force. In terms of practical operation, when the third penetrating portion 124 is disposed at the first arm end 123 of the first arm 12, the force applied by the first acting force is relatively small, and when the third penetrating portion 124 is disposed at the middle position (e.g., on the stop frame 1211A) of the first arm 12, the force applied by the first acting force is relatively large.
When the first pull cord 151 is utilized to drive the first clamping arm 12 to pivot relative to the pivot 111, the first pull cord 151 can be moved from the distal end of the first penetrating portion 112 to the proximal end of the first penetrating portion 112 by applying the first force to the two first ends 1512 at the same time, so that the first bending portion 1511 penetrating the third penetrating portion 124 drives the first clamping arm 12 to pivot relative to the pivot 111 of the base 11, and the first clamping portion 121 can be moved from the clamping position to the open position; furthermore, when one of the first ends 1512 of the two first pull ropes 151 is released, the first pull ropes 151 are separated from the first penetrating portion 112 of the base 11 and the third penetrating portion 124 of the first clamping arm 12 respectively by pulling the other one of the first ends 1512 (i.e. the first end 1512 that is not released), so that the first pull ropes 151 can be removed from the clamping device 1 as a whole after the clamping operation is completed.
Similarly, the second bending portion 1521 may be formed by bending the second pull cord 152 (for example, folding the second pull cord 152 in half), where the second pull cord 152 in a bent state is movably disposed in the second penetrating portion 113 of the base 11, and two second ends 1522 of the second pull cord 152 respectively extend from the proximal end of the second penetrating portion 113 and are exposed, and at the same time, the second bending portion 1521 of the second pull cord 152 extends from the distal end of the second penetrating portion 113 and is disposed in the fourth penetrating portion 134 of the second clip arm 13. In the present embodiment, the second penetrating portion 113 is, for example, a channel structure formed on the base 11, and the fourth penetrating portion 134 is, for example, a closed loop structure or a C-loop structure formed on the second arm end 133, so that the second bending portion 1521 of the second pull cord 152 is penetrated therein. It should be noted that, the fourth penetrating portion 134 may be disposed at a middle position (e.g. on the limiting frame 1311A) or other positions of the second arm 13 according to practical requirements, and only needs to achieve the technical effect of enabling the second pull cord 152 to drive the second arm 13 to pivot to a predetermined position (i.e. an open position) relative to the pivot 111 under the action of the first actuating force. In terms of practical operation effects, when the fourth penetrating portion 134 is disposed at the second arm end 133 of the second arm 13, the force applied by the first force is relatively small, and when the fourth penetrating portion 134 is disposed at the middle position (e.g., the limit frame 1311A) of the second arm 13, the force applied by the first force is relatively large.
When the second pulling rope 152 is used to drive the second clamping arm 13 to pivot relative to the pivot 111, the second pulling rope 152 can be moved from the distal end of the second penetrating portion 113 to the proximal end of the second penetrating portion 113 by simultaneously applying the first force to the two second ends 1522, so that the second bending portion 1521 penetrating the fourth penetrating portion 134 drives the second clamping arm 13 to pivot relative to the pivot 111 of the base 11, and the second clamping portion 131 is moved from the clamping position to the open position; furthermore, when one of the two second ends 1522 is released, the second pulling rope 152 can be separated from the second penetrating portion 113 of the base 11 and the fourth penetrating portion 134 of the second clamping arm 13 by pulling the other of the two second ends 1522 (i.e. the second end 1522 that is not released), so that the second pulling rope 152 can be removed from the clamping device 1 entirely after the clamping operation is completed.
In a preferred embodiment, the base 11 further includes a coupling member 114 detachably coupled to the pivot member 111. Referring to fig. 2A, 2B and 4, in the present embodiment, the combining element 114 may be detachably engaged with the pivoting element 111 by the first conveying element 21 to form a unitary structure. For example, a groove for accommodating a portion of the pivot member 111 may be formed in the coupling member 114, and a first interface 211 and a second interface 212 may be formed in the first conveying member 21, and a portion of the pivot member 111 may be coupled into the groove of the coupling member 114 by connecting the pivot member 111 to the first interface 211 of the first conveying member 21 and simultaneously connecting the coupling member 114 to the second interface 212 of the first conveying member 21, thereby forming the complete base 11. In the present embodiment, the first connector 211 is, for example, a screw structure, and the pivot member 111 is formed with a nut structure adapted to the first connector 211, so as to provide a fixed connection between the pivot member 111 and the first conveying member 21 by means of a screw connection, and the second connector 212 is, for example, a positioning surface, wherein when the first connector 211 of the first conveying member 21 is screw-fixed to the pivot member 111, the second connector 212 can press the connecting member 114 to achieve a fixed connection between the connecting member 114 and the first conveying member 21.
With continued reference to fig. 4, the second conveying member 22 may be further connected to the connecting member 114, wherein when the pivot member 111 and the first conveying member 21 are separated from each other, the connecting member 114 is also separated from the pivot member 111, and in this state, the separated connecting member 114 may be removed from the clamping device 1 by the second conveying member 22 and carried out of the body.
Referring to fig. 5A and 5B in conjunction with the present disclosure, in the embodiment of the present disclosure, the first penetrating portion 112 and the second penetrating portion 113 are penetrating channels formed on opposite sides of the connecting member 114, and preferably, guiding structures 115 (as shown in fig. 5B) are further formed on the first penetrating portion 112 and the second penetrating portion 113, and are used for defining a pulling direction of the first pulling rope 151 and the second pulling rope 152 under the action of the first acting force, so that the pulling force of the first pulling rope 151 and the second pulling rope 152 respectively forms a moment on the pivot point of the first clamping arm 12 and the second clamping arm 13 relative to the base 11, thereby driving the first clamping arm 12 and the second clamping arm 13 to pivot to the open position relative to the pivot member 111. In the present embodiment, the guiding structure 115 is, for example, an inclined hole formed at the distal ends of the first penetrating portion 112 and the second penetrating portion 113, but not limited thereto, and may be designed into other structures according to practical requirements.
Therefore, the clamping device 1 of the present application can remove the combining element 114 and the first pulling rope 151 and the second pulling rope 152 on the base 11 from the clamping device 1 after the clamping operation of the first clamping arm 12 and the second clamping arm 13 on the human tissue 5 is completed, and only the first clamping arm 12, the second clamping arm 13, the elastic element 14 and the pivoting element 111 (as shown in fig. 3) are left, thereby improving the comfort of the patient and reducing the risk of infection.
With continued reference to fig. 6A and 6B, in another embodiment, the first arm 12 is further provided with a first auxiliary structure 125, wherein the third penetrating portion 124 is disposed on the first auxiliary structure 125, and is configured to provide a first bending portion 1511 penetrating the first pull cord 151, so that the first pull cord 151 can indirectly drive the first arm 12 to pivot relative to the pivot 111 of the base 11 by pulling the first auxiliary structure 125; similarly, the second arm 13 is also provided with a second auxiliary structure 135, wherein the fourth penetrating portion 134 is disposed on the second auxiliary structure 135, and is used for providing a second bending portion 1521 penetrating the second pull cord 152, so that the second pull cord 152 can indirectly drive the second arm 13 to pivot relative to the pivot 111 of the base 11 by pulling the second auxiliary structure 135. In the present application, the first auxiliary structure 125 and the second auxiliary structure 135 are, for example, hinge structures or lever structures, wherein when the first auxiliary structure 125 and the second auxiliary structure 135 are respectively acted by the pull forces of the first pull rope 151 and the second pull rope 152, the first auxiliary structure is automatically unfolded to form an auxiliary arm so as to drive the first clamping arm 12 and the second clamping arm 13 to pivot to the open positions (as shown in fig. 6A) relative to the pivot 111, thereby reducing the magnitude of the first force applied to the first pull rope 151 and the second pull rope 152, and facilitating the execution of the clamping operation. Furthermore, when the pulling force of the first pulling cord 151 and the second pulling cord 152 is released, the first auxiliary structure 125 and the second auxiliary structure 135 are switched to the folded state (shown in fig. 6B), so as to reduce the occupied space of the clamping device 1 in the human body.
Referring to fig. 7A to 9E, the present application further provides a clamping assembly, which includes a clamping device 1 and an auxiliary supporting member 4, wherein the main structure of the clamping device 1 is as described in detail in the foregoing embodiments, and is not repeated herein. The auxiliary support 4 provides auxiliary support to a preset portion 51 of the body tissue 5 (the annulus of the valve) to perform a subsequent clamping operation in cooperation with the clamping assembly 1. Specifically, the first clamping arm 12 and the second clamping arm 13 are respectively pivoted relative to the pivot member 111 by applying a first force to the actuating member 15 of the clamping device 1, so that the first clamping portion 121 and the second clamping portion 131 are respectively moved from the respective clamping positions to the open positions, so as to be respectively positioned on the predetermined portion 51, and the elastic member 14 generates an elastic restoring force along with the deformation of the first clamping arm 12 and the second clamping arm 13 due to the pivoting of the first clamping arm 12 and the second clamping arm 13 relative to the pivot member 111.
When the positioning is completed, the first acting force can be released, so that the first clamping arm 12 and the second clamping arm 13 pivot relative to the pivot element 111 under the action of the elastic restoring force of the elastic element 14, and the first clamping portion 121 and the second clamping portion 131 return to the clamping positions from the respective open positions, so that the preset portion 51 of the human tissue 5 and the auxiliary supporting element 4 are clamped between the first clamping portion 121 and the second clamping portion 131, and the preset portion 51 of the human tissue 5 is clamped between the auxiliary supporting element 4 and the clamping device 1.
In the present application, the predetermined portion 51 of the human tissue 5 includes a first side 511 and a second side 512 disposed opposite to each other. Furthermore, the auxiliary support 4 can also be realized by different structural designs.
In one embodiment, the auxiliary support 4 includes a bead-propping structure (as shown in fig. 7A), and in particular, the bead-propping structure may be used to prop against the preset portion 51 (as shown in fig. 7B) on the first side 511 of the human tissue 5, so as to facilitate the subsequent clamping operation of the clamping device 1 on the preset portion 51 of the human tissue 5.
In another embodiment, the auxiliary supporting member 4 includes the self-tapping spring wire structure 4 (as shown in fig. 8A), specifically, a second force is applied to the self-tapping spring wire structure 4 to rotate the self-tapping spring wire structure relative to the human tissue 5, so that at least a portion of the self-tapping spring wire structure 4 is screwed into the first side 511 of the predetermined portion 51 from the second side 512 of the predetermined portion 51, thereby positioning the self-tapping spring wire structure 4 on the human tissue 5 (as shown in fig. 8B) and cooperating with the clamping device 1 to perform a clamping operation (as shown in fig. 8C) on the predetermined portion 51 of the human tissue 5, and after the clamping operation is completed, a portion of the clamping device 1 is removed, leaving only a small portion of the clamping device 1 in the human body (as shown in fig. 8D). It should be noted that the detachable structural design is also applicable to the aforementioned top bead structure, and is not described herein.
In another embodiment, the auxiliary supporting member 4 includes a net structure (as shown in fig. 9A), wherein the auxiliary supporting member 4 further includes a deformation unit 41 and a connection unit 42, and in this embodiment, the deformation unit 41 may be configured to be integrally formed with the connection unit 42, but not limited thereto, and may also be configured as two independent components connected to each other. As shown in the drawing, the deformation unit 41 is disposed on the first side 511 of the preset portion 51, and is capable of being deformed on the first side 511 of the human tissue 5 to switch from a contracted state to an expanded state, wherein the cross-sectional diameter of the deformation unit 41 in the contracted state is smaller than the diameter of the puncture hole 513 preset on the human tissue 5, and the cross-sectional diameter of the deformation unit 41 in the expanded state is larger than the diameter of the puncture hole 513.
The cross-sectional diameter of the connection unit 42 is smaller than the diameter of the puncture hole 513, and the connection unit 42 may extend from the deformation unit 41 located at the first side 511 of the preset portion 51 and pass through the puncture hole 513 to extend from the second side 512 of the preset portion 51, wherein the connection unit 42 may be subjected to a second force to enable the deformation unit 41 in a contracted state to pass through the puncture hole 513 and move from the second side 512 of the preset portion 51 to the first side 511 of the preset portion 51, and enable the deformation unit 41 moving to the first side 511 of the preset portion 51 to be switched from a contracted state to an expanded state so as to be located at the first side 511 of the preset portion 51 (as shown in fig. 9B), and then the connection unit 42 may be further subjected to a third force to enable the deformation unit 41 in the expanded state to be driven by the connection unit 42 to move from the first side 511 of the preset portion 51 to the second side 512, so that the deformation unit 41 abuts against the preset portion 51 and is enabled to be in a state protruding to the second side 512. Then, by applying a first force to the actuating member 15 of the clamping device 1, the first clamping arm 12 and the second clamping arm 13 are pivoted relative to the pivot member 111, so that the first clamping portion 121 and the second clamping portion 131 are moved from their respective clamping positions to their respective open positions, so as to be respectively attached to opposite sides of the predetermined portion 51 in the convex state (as shown in fig. 9C), and then the first force can be released, so that the first clamping arm 12 and the second clamping arm 13 are pivoted relative to the pivot member 111 under the elastic restoring force of the elastic member 14, so that the first clamping portion 121 and the second clamping portion 131 are returned from their respective open positions to their respective clamping positions, so that the predetermined portion 51 in the convex state and the deformation unit 41 are clamped between the first clamping portion 121 and the second clamping portion 131 at the second side 512 of the predetermined portion 51 (as shown in fig. 9D). After the clamping operation is completed, the actuating member 15 and the coupling member 114 can be removed from the clamping device 1, and only the first clamping arm 12, the second clamping arm 13, the pivoting member 111 and the elastic member 14 remain in the human body. As can be seen from fig. 9E, in the clamped state, the preset portion 51 of the human tissue 5 is clamped between the deformation unit 51 and the accommodating cavity formed by the first clamping portion 121 and the second clamping portion 131, thereby forming a sandwich-like clamped state, whereby the human tissue 5 can be effectively prevented from being torn, and the fixing effect of the clamping can be improved.
In summary, the clamping device and the clamping assembly provided by the application are suitable for treating tricuspid valve reflux disease by a minimally invasive method, and have the advantages of simple structure, firm clamping, difficult slipping and prevention of tearing of human tissues. Furthermore, the clamping device can remove a part of the components after the clamping operation is finished, and only a small part of the components are left in the human body, so that the use comfort of a patient can be improved, and the infection risk is reduced. In addition, the elastic piece formed by the torsion spring is used for clamping, so that the clamping accuracy can be improved, human tissues are not easy to clamp, the clamping device can be used for clamping human tissues with different thicknesses, and the clamping device has the advantage of wide application range.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the embodiments of the present application, and are not limited thereto; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (19)
1. A clamping device for clamping a predetermined portion of a body tissue, comprising:
A base having a pivot;
a first clamping arm pivoted to the pivoting member and having a first clamping portion;
the second clamping arm is pivoted to the pivoting piece and provided with a second clamping part;
an elastic piece which is arranged on the base and contacts the first clamping arm and the second clamping arm; and
The actuating piece comprises a first pull rope and a second pull rope, the first pull rope and the second pull rope are movably arranged in the base in a penetrating mode and are respectively connected with the first clamping arm and the second clamping arm, and the first pull rope and the second pull rope can be separated from the first clamping arm and the second clamping arm respectively; wherein,
When the actuating piece is not stressed, the first clamping arm and the second clamping arm are respectively positioned at the respective clamping positions under the action of the elastic piece;
When the first pull rope and the second pull rope are acted by a first acting force, the first clamping arm and the second clamping arm are respectively driven by the first pull rope and the second pull rope to pivot relative to the pivoting piece, so that the first clamping part and the second clamping part are respectively moved to an opening position from the respective clamping positions to be respectively positioned on the preset part of the human tissue, and the elastic piece generates elastic restoring force;
when the first acting force is released, the first clamping arm and the second clamping arm respectively pivot relative to the pivoting piece under the action of the elastic restoring force, so that the first clamping part and the second clamping part respectively return to the clamping position from the respective opening positions to clamp the preset part of the human tissue;
the base is provided with a first penetrating part and a second penetrating part, the first clamping arm and the second clamping arm are also respectively provided with a third penetrating part and a fourth penetrating part,
The first pull rope is in a bending state to form a first bending part, the first pull rope is movably arranged in a first penetrating part of the base in a penetrating way, two first tail ends of the first pull rope extend out from the proximal end of the first penetrating part, and the first bending part extends out from the distal end of the first penetrating part and is arranged in the third penetrating part on the first clamping arm in a penetrating way;
The second pull rope is in a bending state to form a second bending part, the second pull rope movably penetrates through the second penetrating part of the base, two second tail ends of the second pull rope extend out of the proximal end of the second penetrating part, and the second bending part extends out of the distal end of the second penetrating part and penetrates through the fourth penetrating part on the second clamping arm.
2. The clamping device according to claim 1, wherein the first clamping arm and the second clamping arm are further provided with a first clamping arm root portion and a second clamping arm root portion at one end close to the base, the first clamping arm end portion and the second clamping arm end portion are respectively provided with a first clamping arm end portion and a second clamping arm end portion at one end far away from the base, when the first clamping arm and the second clamping arm are respectively in the open positions, the first clamping arm end portion and the second clamping arm end portion are mutually far away from each other, so that the first clamping portion and the second clamping portion are respectively attached to the preset portion, and when the first clamping arm and the second clamping arm are respectively in the clamping positions, the first clamping arm end portion and the second clamping portion are mutually close to each other, and the first clamping portion and the second clamping portion cooperate to form a containing cavity for clamping and containing the preset portion.
3. The clamping device as recited in claim 2, further characterized in that the first clamping portion further comprises a first limiting portion, and the second clamping portion further comprises a second limiting portion, wherein the first limiting portion cooperates with the base when the first clamping arm and the second clamping arm are respectively in the clamping positions, and the second limiting portion is used for defining a size of the accommodating cavity.
4. A clamping device as claimed in claim 3, characterised in that the first and second limiting portions are limiting frames respectively.
5. The clamping device of claim 2, wherein the actuator is removable from the clamping device, and wherein:
When the two first ends are simultaneously acted by the first acting force and move from the distal end of the first penetrating part to the proximal end direction of the first penetrating part, the first bending part penetrating into the third penetrating part drives the first clamping arm to pivot relative to the base so as to enable the first clamping part to move from the clamping position to the open position, and when one of the two first ends is released, the first pull rope is pulled to separate from the first penetrating part and the third penetrating part respectively so as to be removed from the clamping device;
When the two second ends are simultaneously acted by the first acting force and move from the distal end of the second penetrating part to the proximal end direction of the second penetrating part, the second bending part penetrating into the fourth penetrating part drives the second clamping arm to pivot relative to the base so as to enable the second clamping part to move from the clamping position to the open position, and when one of the two second ends is released, the second pulling rope is pulled to enable the second pulling rope to be separated from the second penetrating part and the fourth penetrating part respectively, so that the second pulling rope is removed from the clamping device.
6. The clamping device of claim 5, wherein the first and second penetrating portions are channel structures formed on opposite sides of the base, respectively, and the third and first penetrating portions are closed loop structures or C-loop structures formed on the first and second clamp arm ends, respectively.
7. The clamping device of claim 5, wherein the base further comprises a coupling member that removably engages the pivot member.
8. The clamping device as recited in claim 7, characterised in that said coupling element is detachably engaged with said pivoting element by means of a first conveying element.
9. The clamping device of claim 7, wherein the first and second penetrating portions are formed on the coupling member.
10. The clamping device as recited in claim 9, further comprising guide structures formed on the first and second penetrating portions, respectively, for defining a direction of the first and second pull cords under the first force.
11. The clamping device as claimed in claim 5, characterized in that,
The first clamping arm is further provided with a first auxiliary structure, the third penetrating part is arranged on the first auxiliary structure, and the first pull rope indirectly drives the first clamping arm to pivot relative to the base through the first auxiliary structure; and
The second clamping arm is further provided with a second auxiliary structure, the fourth penetrating part is arranged on the second auxiliary structure, and the second pull rope indirectly drives the second clamping arm to pivot relative to the base through the second auxiliary structure.
12. The clamping device of claim 11, wherein the first and second auxiliary structures are hinge structures or lever structures.
13. The clamping device as claimed in claim 1, wherein the elastic member is a torsion spring provided on the pivotal member.
14. The clamping device of claim 1, wherein the first clamping arm and the second clamping arm are further wrapped with a bio-fusion wire, respectively.
15. A clamping assembly for clamping a predetermined portion of a body tissue, comprising:
clamping device according to any of claims 1 to 14; and
An auxiliary support; wherein,
The auxiliary support provides auxiliary support to the preset part of the human tissue;
The first acting force is applied to the actuating piece, so that the first clamping arm and the second clamping arm are respectively pivoted relative to the pivoting piece under the driving of the actuating piece, the first clamping part and the second clamping part are respectively moved to the open position from the respective clamping positions, so that the first clamping part and the second clamping part are respectively positioned on the preset positions, and the elastic piece generates elastic restoring force; and
The first acting force is released, so that the first clamping arm and the second clamping arm respectively pivot relative to the pivoting piece under the action of the elastic restoring force, the first clamping part and the second clamping part return to the clamping positions from the respective opening positions respectively, the preset part of the human tissue and the auxiliary supporting piece are clamped, and the preset part of the human tissue is clamped between the auxiliary supporting piece and the clamping device.
16. The clamping assembly of claim 15, wherein the pre-set portion includes a first side and a second side disposed opposite one another, wherein the auxiliary support is accessible from the second side of the pre-set portion to the first side of the pre-set portion by a second force.
17. The clamp assembly of claim 16, wherein the auxiliary support includes a self-tapping spring wire structure that is rotatable relative to the body tissue by the second force to cause a portion of the self-tapping spring wire structure to be threaded into the first side of the predetermined location from the second side of the predetermined location, thereby positioning the self-tapping spring wire structure on the body tissue.
18. The clamp assembly of claim 16, wherein the auxiliary support comprises a trawl structure, and the auxiliary support further comprises:
The deformation unit is arranged on the first side of the preset part, and can deform on the first side to be switched from a contracted state to an expanded state, wherein the cross-sectional diameter of the deformation unit in the contracted state is smaller than the diameter of a puncture hole preset on the human tissue, and the cross-sectional diameter of the deformation unit in the expanded state is larger than the diameter of the puncture hole; and
The cross-section diameter of the connecting unit is smaller than that of the puncture hole, so that the connecting unit extends from the deformation unit, penetrates through the puncture hole from the first side of the preset part and extends out of the second side of the preset part, the connecting unit can enable the deformation unit in the contracted state to penetrate through the puncture hole from the second side of the preset part to the first side of the preset part under the action of the second action force, and the connecting unit can enable the deformation unit in the expanded state to move from the first side of the preset part to the second side under the action of the third action force under the action of the connecting unit, so that the deformation unit in the expanded state is enabled to be in a trend of propping against the preset part from the first side.
19. The clamp assembly of claim 15, wherein the auxiliary support comprises a top bead structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910662053.2A CN110403734B (en) | 2019-07-22 | 2019-07-22 | Clamping device and clamping assembly |
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| CN201910662053.2A CN110403734B (en) | 2019-07-22 | 2019-07-22 | Clamping device and clamping assembly |
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| CN110403734A CN110403734A (en) | 2019-11-05 |
| CN110403734B true CN110403734B (en) | 2024-10-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113138287B (en) * | 2021-03-17 | 2025-03-25 | 广州埃克森生物科技有限公司 | Reaction cup taking and placing device |
| CN113057764B (en) * | 2021-03-17 | 2025-07-25 | 广东脉搏医疗科技有限公司 | Valve clamping device |
| CN113208778A (en) * | 2021-05-08 | 2021-08-06 | 上海汇禾医疗科技有限公司 | Anchoring device |
| CN113208779B (en) * | 2021-05-11 | 2025-09-26 | 上海汇禾医疗科技有限公司 | Clamping equipment |
| CN115317195B (en) * | 2021-05-11 | 2025-09-16 | 上海汇禾医疗科技有限公司 | Clamping apparatus |
| CN114770428B (en) * | 2022-06-22 | 2022-09-13 | 天津海鸥表业集团有限公司 | Gauge needle disassembling tool |
| CN114948347B (en) * | 2022-07-06 | 2023-08-08 | 昆山茵络医疗器械有限公司 | Valve clamping assembly |
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| CN211067213U (en) * | 2019-07-22 | 2020-07-24 | 上海汇禾医疗科技有限公司 | Clamping device and clamping assembly |
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| US7226467B2 (en) * | 1999-04-09 | 2007-06-05 | Evalve, Inc. | Fixation device delivery catheter, systems and methods of use |
| US20100094334A1 (en) * | 2008-10-10 | 2010-04-15 | Matthew Krever | Plication device with formable linear fastener for use in the direct plication annuloplasty treatment of mitral valve regurgitation |
| US8945177B2 (en) * | 2011-09-13 | 2015-02-03 | Abbott Cardiovascular Systems Inc. | Gripper pusher mechanism for tissue apposition systems |
| WO2016090308A1 (en) * | 2014-12-04 | 2016-06-09 | Edwards Lifesciences Corporation | Percutaneous clip for repairing a heart valve |
| US10413316B2 (en) * | 2015-11-17 | 2019-09-17 | Covidien Lp | Articulating ultrasonic surgical instruments and systems |
| US10799358B2 (en) * | 2016-04-12 | 2020-10-13 | Lars Erickson | Catheter system for selectively manipulating and connecting cardiac tissues |
| US10779837B2 (en) * | 2016-12-08 | 2020-09-22 | Evalve, Inc. | Adjustable arm device for grasping tissues |
| CN109875725A (en) * | 2017-12-06 | 2019-06-14 | 北京领健医疗科技有限公司 | a clip device |
| CN208876682U (en) * | 2018-06-20 | 2019-05-21 | 何中杰 | A kind of cancer surgery pincers |
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| CN211067213U (en) * | 2019-07-22 | 2020-07-24 | 上海汇禾医疗科技有限公司 | Clamping device and clamping assembly |
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