CN210582627U

CN210582627U - Treatment tool for endoscope

Info

Publication number: CN210582627U
Application number: CN201920377024.7U
Authority: CN
Inventors: 李鹏
Original assignee: Hangzhou Anjisi Medical Science And Technology Co Ltd
Current assignee: Hangzhou Anjisi Medical Science And Technology Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-05-22
Anticipated expiration: 2029-03-22

Abstract

The utility model provides a treatment apparatus for endoscope, including front end subassembly, processing module and operating module, operating module connect in processing module, the front end subassembly is including installation cap, installation cover and connecting piece, the installation mantle cover is established the installation cap bears processing module, outside endoscope subassembly is located to installation mantle, the connecting piece is flexible wire rod, the connecting piece is worn to establish processing module and both ends with the installation cap links to each other. The utility model provides a treatment apparatus for endoscope is through setting up the connecting piece into the flexible piece, and the connecting piece can not scrape human cavity when the motion of direction processing portion, and processing portion need not to carry out the circular arc motion that must go on among the traditional endoscope treatment apparatus. The free motion form of processing portion for the catching area increase of processing portion need not to interfere with the motion of flexible connecting piece, and self motion accuracy can obtain accurate assurance, has extensive application prospect.

Description

Treatment tool for endoscope

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an endoscope is with handling utensil.

Background

Endoscopic Mucosal Resection (EMR) is widely used as a common treatment for digestive tract diseases. Taking Endoscopic Submucosa Dissection (ESD) as an example, it is a minimally invasive technique capable of dissecting diseased mucosa completely from submucosa under endoscope, and shows excellent therapeutic effect in clinical treatment of early esophageal cancer, early gastric cancer, interstitial tumor and early colon tumor.

When carrying out ESD operation, the injection such as normal saline is injected into normal mucosa around the pathological change part by an injection needle to lead the pathological change mucosa to float; then the hard connecting piece is used for supporting and guiding the treatment part to move, the treatment part is used for lifting the surface layer of the mucosa, and finally high-frequency treatment appliances such as a high-frequency knife or a snare are used for cutting the part between the diseased mucosa and the normal mucosa, thereby realizing the minimally invasive cutting of the diseased mucosa.

However, in the conventional treatment device for an endoscope, when the rigid coupling member is moved to guide the treatment portion during the ESD operation, the treatment portion is first pushed upward, and the treatment portion is guided to the position where the treatment portion is pushed out of the endoscope. The circular arc motion of the connecting piece and the processing part not only makes the mucous membrane tissue near the lens of the endoscope difficult to grasp and is not beneficial to the accurate control of the processing part, but also the hard connecting piece exposed outside has the risk of scratching the cavity of the human body.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an improved treatment tool for an endoscope, which can easily grasp mucosal tissue near the lens of the endoscope, and has a high control precision of the treatment portion and a relatively low risk of scratching the body lumen.

The utility model provides a treatment apparatus for endoscope, including front end subassembly, processing module and operating module, operating module connect in processing module, the front end subassembly is including installation cap, installation cover and connecting piece, the installation mantle cover is established the installation cap bears processing module, outside endoscope subassembly is located to installation mantle, the connecting piece is flexible wire rod, the connecting piece is worn to establish processing module and both ends with the installation cap links to each other.

Further, the connecting piece is a surgical wire.

Furthermore, both ends of the connecting piece are fixedly bonded with the mounting cap.

Furthermore, two mounting holes are formed in the mounting cap, and the end of the connecting piece extends into the mounting holes and is clamped against the inner side face of the mounting cover in a winding mode.

Further, the mounting positions of the two ends of the connecting piece on the mounting cover are orthogonal to the axial direction of the mounting cover.

Further, the mounting cap has a distal end relatively distal to the operating assembly and a proximal end relatively proximal to the operating assembly, the distal end of the mounting cap being recessed in a proximal direction at a location axially orthogonal to the mounting cap.

Further, the processing assembly comprises a processing portion, a spring hose and an outer sleeve, the spring hose and the outer sleeve are connected to the operation assembly, the outer sleeve is sleeved with the spring hose and connected to the installation cover, and the processing portion is arranged at one end of the spring hose and connected to the installation cap through the connecting piece.

Further, the treatment portion comprises a forceps member, and the operation assembly can control the opening and closing of the forceps member.

Further, the side surface of the mounting cover forms a notch which gradually expands in a direction parallel to the axial direction of the mounting cover and directed toward the operating assembly.

Further, the mounting cap is a hard member, and/or,

the mounting cover is a soft component.

The utility model provides a treatment apparatus for endoscope is through setting up the connecting piece into the flexible piece, and the connecting piece can not scrape human cavity when the motion of direction processing portion, and processing portion need not to carry out the circular arc motion that must go on among the traditional endoscope treatment apparatus. The free motion form of processing portion for the catching area increase of processing portion need not to interfere with the motion of flexible connecting piece, and self motion accuracy can obtain accurate assurance, has extensive application prospect.

Drawings

FIG. 1 is a schematic view showing a configuration of an endoscopic instrument according to an embodiment of the present invention.

FIG. 2 is a schematic view showing a configuration of the endoscopic instrument shown in FIG. 1 when used in combination with an endoscopic assembly.

FIG. 3 is a schematic configuration view of the endoscopic instrument shown in FIG. 2, taken from another angle of view, in cooperation with an endoscopic assembly.

FIG. 4 is an enlarged schematic view of a part of the endoscopic instrument shown in FIG. 1.

FIG. 5 is an enlarged view of a part of the endoscopic instrument shown in FIG. 4 from another angle of view.

FIG. 6 is an enlarged schematic view of a part of the structure of the endoscopic instrument shown in FIG. 2, which is used in cooperation with an endoscopic assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, fig. 1 is a schematic view showing a configuration of an endoscopic instrument 100 according to an embodiment of the present invention, fig. 2 is a schematic view showing a configuration of the endoscopic instrument 100 shown in fig. 1 when used in cooperation with an endoscopic assembly 200, and fig. 3 is a schematic view showing a configuration of the endoscopic instrument 100 shown in fig. 2 when used in cooperation with the endoscopic assembly 200 at another angle.

The utility model provides an endoscope is with handling utensil 100, its confession medical staff controls in order to carry out the processing and the treatment of pathological change tissue, has extensive application prospect in clinical medicine.

In the present embodiment, the Endoscopic treatment tool 100 is applied to a surgical procedure of Endoscopic Submucosal Dissection (ESD), and generally enters the inside of a human body through a natural orifice such as a human oral cavity, and performs surgical diagnosis and treatment of diseases such as digestive tract cancer and gastric cancer by removing an early tumor of a Submucosal layer by the operation of a medical worker.

It is to be understood that the endoscopic treatment instrument 100 is not limited to being applicable only to a treatment procedure of an ESD operation; in other embodiments, the endoscopic instrument 100 may be used in a treatment procedure of an endoscopic surgery other than the ESD surgery.

Specifically, the endoscopic treatment instrument 100 includes a nose module 10, a treatment module 20, and an operation module 30, the nose module 10 being provided at one end of the treatment module 20 and connected to the endoscopic assembly 200, and the operation module 30 being provided at the other end of the treatment module 20 opposite to the nose module 10.

The nose assembly 10 is used to connect to the endoscope assembly 200 and guide the movement of some components in the treatment assembly 20, the treatment assembly 20 is used to treat a lesion, and the operation assembly 30 is directly operated by medical personnel to control the posture and movement of the treatment assembly 20. The treatment assembly 20, under the control of the operation assembly 30 and the guidance of the nose assembly 10, works in cooperation with the endoscope assembly 200 to resect lesion tissue such as tumors, polyps, etc. in the lower mucosal layer, thereby completing the treatment.

Referring to fig. 4 to 6 together, fig. 4 is an enlarged schematic view of a part of the structure of the endoscopic instrument 100 shown in fig. 1, fig. 5 is an enlarged schematic view of a part of the structure of the endoscopic instrument 100 shown in fig. 4 from another angle of view, and fig. 6 is an enlarged schematic view of a part of the structure of the endoscopic instrument 100 shown in fig. 2 when used in cooperation with an endoscopic assembly 200.

The front end module 10 includes a mounting cap 11, a mounting cap 12 and a connecting member 13, the mounting cap 12 is substantially hollow cylindrical and is sleeved on the mounting cap 11, and the mounting cap 11 is substantially hollow cylindrical and penetrates through the mounting cap 12 and extends out of the mounting cap 12. The top of mounting cap 12 carries part of the components of treatment assembly 20, and the interior thereof is adapted to receive and retain endoscope assembly 200, thereby providing interconnection between endoscopic treatment instrument 100 and endoscopic assembly 200. The connecting member 13 is fixed at both ends thereof to the mounting cap 11, and a processing unit 20 is inserted through a substantially central portion thereof.

In the present embodiment, the mounting cap 11 is made of a hard and transparent material, the mounting cap 11 is made of a transparent material so as to avoid blocking the view of the endoscope assembly 200, and the hard material is used to effectively support and carry the connecting member 13; correspondingly, the mounting cover 12 is made of a soft material, and the mounting cover 12 is made of a soft material so as to facilitate the mounting and embedding of the endoscope assembly 200.

Further, the mounting cover 12 is formed with a notch 121 on a side facing away from the handling member 20, the notch 121 gradually expands in the axial direction of the mounting cover 12 and in the direction toward the handling member 30, and the notch 121 is substantially "V" -shaped; the opening of slot 121 allows endoscope assembly 200 to be more easily inserted into mounting cup 12, thereby improving the efficiency of the mounting therebetween.

In the present embodiment, the mounting cap 11 and the mounting cover 12 are of a separate structure. It is understood that in other embodiments, the mounting cap 11 and the mounting cup 12 may be integrally formed. The processing assembly 20 comprises a processing part 21, a spring hose 22 and an outer sleeve 23, wherein the processing part 21 is arranged at the end position of the spring hose 22 and is connected to the mounting cap 11 in the front end assembly 10 through a connecting piece 13, one end of the spring hose 22 is connected to the processing part 21, and the other end of the spring hose 22 is connected to the operating assembly 30; the outer sleeve 23 is sleeved with the spring hose 22, and the inner diameter of the outer sleeve is matched with the outer diameter of the spring hose 22 so that the spring hose 22 can telescopically slide relative to the outer sleeve 23.

In the present embodiment, the treatment section 21 is a forceps member 211 that grips the superficial mucosa with its own gripping performance so that the diseased tissue of the submucosal layer is exposed to prepare for the subsequent surgical resection.

The spring hose 22 is formed by tightly winding a flexible wire, and has certain rigidity and flexibility, the rigidity of the spring hose 22 enables the spring hose 22 to stretch and contract under the action of external force, and the flexibility of the spring hose 22 enables the spring hose to bend when the drive processing part 21 extends out, so that the flexibility requirement of detection is met. The spring hose 22 may be completely exposed, or may be completely sleeved inside the outer sleeve 23.

The processing assembly 20 further comprises a guide member 24, the guide member 24 being disposed on the mounting cup 12; the distal side of the outer sleeve 23 remote from the operator is secured to the mounting cup 12 by a guide member 24. It will be appreciated that the guide member 24 may be omitted if the processing assembly 20 is otherwise disposed on the mounting cup 12.

The operation assembly 30 includes an operation body 31, a slider 32, a first locking mechanism 33 and a second locking mechanism 34, the operation body 31 carries the slider 32, the first locking mechanism 33 and the second locking mechanism 34, the slider 32 is connected with the spring hose 22 through an operation wire led out from the spring hose 22, and is mounted on the operation body 31 and can slide relative to the operation body 31 under the operation of an operator, so that the opening and closing state of the processing part 21 positioned on the end part of the spring hose 22 is controlled by the forward and backward movement of the operation body; the first locking mechanism 33 is connected with the spring hose 22 and the outer sleeve 23, and is used for controlling the locking state between the spring hose 22 and the outer sleeve 23; a second locking mechanism 34 is connected to the slide 32 for locking the displacement position of the slide 32.

The first locking mechanism 33 comprises a mounting member 331 and a fixing member 332 capable of being locked and separated with respect to the mounting member 331, the fixing member 332 is fixed to one end of the spring hose 22, and when the fixing member 332 and the mounting member 331 are locked to each other, the spring hose 22 connected to the fixing member 332 cannot freely rotate and advance and retreat with respect to the outer sleeve 23; when the fixture 332 and the mounting member 331 are separated from each other, the spring hose 22 connected to the fixture 332 can freely rotate and advance and retreat with respect to the outer tube 23.

In this embodiment, the mounting member 331 and the fixing member 332 are detachably connected by a clamping manner, and it can be understood that in other embodiments, the mounting member 331 and the fixing member 332 can be locked and separated by other manners besides clamping.

The following briefly describes the principle of use of the endoscopic treatment instrument 100:

firstly, the first locking mechanism 33 and the second locking mechanism 34 are set to be in an unlocked state, and the processing part 21 at the end part of the spring hose 22 is driven to extend out of the top end of the mounting cover 12 by utilizing the travel of the spring hose 22 in the outer sleeve 23; after the processing portion 21 reaches the predetermined position, the mounting member 331 of the first locking mechanism 33 is locked with the fixing member 322, so that the spring hose 22 and the outer sleeve 23 are fixed to each other.

Then, the slider 32 is moved forward and backward to control the opening and closing of the treatment unit 21 (forceps member 211) by the tension of the spring tube 22, so that the treatment unit 21 engages the mucous membrane layer; the second locking mechanism 34 is then adjusted to the locked state, in which the slider 32 cannot move, thereby preventing the mucosal tissue from being separated from the treatment section 21 due to the movement of the slider 32.

Finally, the locking of the first locking mechanism 33 is released, so that the spring hose 22 can move forward and backward relative to the outer sleeve 23, the spring hose 22 is pulled back to drive the processing portion 21 to return to the top of the mounting cover 12, the mucosa surface layer can be lifted up in the process of returning the processing portion 21, lesion tissues in the submucosal layer are exposed, and the lesion tissues are removed and the whole operation treatment process is completed through the subsequent treatment of the high-frequency electrotome and other electric surgical instruments.

When the conventional endoscope treatment instrument is used for operation, the treatment part 21 needs to be supported by the hard connecting piece 13, and the hard material of the connecting piece 13 is not only easy to scratch the human body, but also not beneficial to the precise control of the treatment part, so that the mucosa tissue of the endoscope assembly 200 near the lens is difficult to grasp.

The utility model provides a treatment instrument 100 for endoscope sets up connecting piece 13 into flexible device, and connecting piece 13 comprises flexible wire rod, therefore connecting piece 13 can not scrape human cavity when the motion of direction processing portion 21, and processing portion 21 need not to carry out the circular arc motion that must go on among the traditional endoscope treatment instrument. The free motion form of the processing part 21 increases the capture area of the processing part 21, does not need to interfere with the motion of the flexible connecting part 13, and can accurately ensure the self motion accuracy.

In one embodiment of the present invention, one end of the connecting member 13 is fixed on the mounting cover 12, and the other end is fixed on the mounting cover 12 after passing through the processing portion 21; the connection between the mounting locations of the two ends of the connecting member 13 on the mounting cup 12 is orthogonal to the axial direction of the mounting cup 12, i.e., the two ends of the connecting member 13 are disposed in axial symmetry with respect to the central axis of the mounting cup 12, thereby allowing the connecting member 13 to be placed directly on the front end assembly 10, thereby facilitating guiding the movement of the processing section 21.

It is understood that in other embodiments, the mounting positions of the two ends of the connecting member 13 on the mounting cover 12 may not be orthogonal to the axial direction of the mounting cover 12, as long as the connecting member 13 can fulfill its function.

In an embodiment of the present invention, the two ends of the connecting member 13 are fixed on the mounting cover 12 by bonding, the connecting member 13 helps to improve the stability of the endoscopic treatment device 100 by bonding, and the mounting cover 12 can be fixed to each other without additional installation structures.

In other embodiments, since the connecting member 13 is made of a flexible wire, two ends of the connecting member 13 can be wound to form a knot after penetrating the mounting cover 12 to abut against the mounting cover 12, so that the fixing of the connecting member on the mounting cover 12 is realized, and the connecting member is prevented from being separated from the mounting cover 12; at this time, two mounting holes 111 are correspondingly formed in the mounting cover 12, and the connecting member 13 is wound into a knot after extending into the mounting holes 111 and is clamped against the inner side of the mounting cover 12, so as to fix the mounting cover and the connecting member to each other.

It will be appreciated that the connecting member 13 and the mounting cover 12 may be fixed to each other by other connecting means than the above-described bonding and winding means, and the connecting means is not limited.

In one embodiment of the present invention, the connecting member 13 is a surgical thread. Since the surgical thread is commonly used in the medical field, the connecting member 13 is preferably the surgical thread, which can reduce the preparation of additional consumables, and the surgical thread has better toughness and human body compatibility, and also meets the performance requirement of the connecting member 13.

The utility model discloses an among the embodiment, the installation cap 11 has the distal end 112 of keeping away from the operator and relative and near-end 113 near the operator with the distal end, and the installation cap 11 distal end 112 is sunken to near-end 113's direction with the part of self axial quadrature for installation cap 11 is the camber line under looking sideways at the visual angle.

The concave arc shape of the mounting cap 11 contributes to increase of the movable area of the treatment portion 21, and the treatment portion 21 can move more freely at the tip of the mounting cap 11.

It should be noted that the distal end 112 and the proximal end 113 of the mounting cap 11 face away from each other, the distal end 112 is relatively far away from the operating assembly 30 and the operator, and the proximal end 113 is relatively close to the operating assembly 30 and the operator.

The treatment tool 100 for an endoscope provided by the present invention is configured such that the connecting member 13 is a flexible member, and the connecting member 13 does not scrape the cavity of the human body when guiding the movement of the treatment section 21, and the treatment section 21 does not need to perform the circular motion which is necessary in the conventional endoscope treatment tool. The free motion form of processing portion 21 for the catching area of processing portion 21 increases, need not to interfere with the motion of flexible connecting piece 13, and self motion accuracy can obtain accurate assurance, has extensive application prospect.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims

1. A treatment device for an endoscope is characterized by comprising a front end assembly, a treatment assembly and an operation assembly, wherein the operation assembly is connected to the treatment assembly, the front end assembly comprises a mounting cap, a mounting cover and a connecting piece, the mounting cover is sleeved on the mounting cap and bears the treatment assembly, the mounting cap is sleeved on an external endoscope assembly, the connecting piece is a flexible wire, the connecting piece penetrates through the treatment assembly, and two ends of the connecting piece are connected with the mounting cap.

2. The endoscopic instrument as defined in claim 1, wherein said mounting cap and said mounting cover are formed in a separate structure or integrally.

3. The endoscopic instrument as defined in claim 1, wherein said connecting member is a surgical suture; and/or the presence of a catalyst in the reaction mixture,

and two ends of the connecting piece are fixedly bonded with the mounting cap.

4. The endoscopic instrument as defined in claim 1, wherein said mounting cap has two mounting holes formed therein, and wherein end portions of said connecting members are inserted into said mounting holes and engaged with inner surfaces of said mounting caps by being wound as knots.

5. The endoscopic instrument as defined in claim 1, wherein both ends of said connector are attached to said attachment cover at positions orthogonal to an axial direction of said attachment cover.

6. The endoscopic treatment instrument according to claim 1, wherein said mounting cap has a distal end relatively distant from said operating assembly and a proximal end relatively close to said operating assembly, and wherein said distal end of said mounting cap is recessed in a proximal direction at a position axially orthogonal to said mounting cap.

7. The endoscopic instrument as defined in claim 1, wherein said treatment unit includes a treatment portion, a spring hose and an outer sheath tube, said spring hose and said outer sheath tube being connected to said operation unit, said outer sheath tube being provided around said spring hose and connected to said mounting cap, said treatment portion being provided at one end of said spring hose and connected to said mounting cap via said connector.

8. The endoscopic treatment instrument as defined in claim 7, wherein said treatment portion includes a forceps member, and said operation unit is capable of controlling opening and closing of said forceps member.

9. The endoscopic instrument as defined in claim 1, wherein a side surface of said mounting cover is formed with a notch which is gradually widened in a direction parallel to an axial direction of said mounting cover and directed toward the operating unit.

10. The endoscopic instrument as defined in claim 1, wherein said mounting cap is a hard member and/or,

the mounting cover is a soft component.