CN113303874B - A catheter guidewire kit for interventional therapy - Google Patents
A catheter guidewire kit for interventional therapy Download PDFInfo
- Publication number
- CN113303874B CN113303874B CN202110652474.4A CN202110652474A CN113303874B CN 113303874 B CN113303874 B CN 113303874B CN 202110652474 A CN202110652474 A CN 202110652474A CN 113303874 B CN113303874 B CN 113303874B
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- Prior art keywords
- guidewire
- catheter
- cutting
- guide wire
- fixing
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- 238000002560 therapeutic procedure Methods 0.000 title claims description 8
- 238000007906 compression Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 208000007536 Thrombosis Diseases 0.000 abstract description 19
- 238000009434 installation Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 230000008093 supporting effect Effects 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000011900 installation process Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with a guide wire
- A61B2017/22042—Details of the tip of the guide wire
- A61B2017/22044—Details of the tip of the guide wire with a pointed tip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with a guide wire
- A61B2017/22045—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with a guide wire fixed to the catheter; guiding tip
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本发明属于医疗器械技术领域，提供了一种介入治疗用导管导丝套件，包括导丝和导管，所述导丝包括导丝核芯，导丝核芯的端部固定安装有导丝椎体，导丝椎体上套设有弹簧圈护套，弹簧圈护套的端部固定安装有切割头，所述导丝核芯和导管通过同轴连接件同轴连接，同轴连接件的一侧固定安装有同轴固定件，同轴连接件与同轴固定件同轴连接。本发明的一种介入治疗用导管导丝套件，通过在弹簧圈护套的端部固定安装有切割头，提高导丝尖端对于血栓血块的穿透和切割能力；导丝核芯与导管之间通过同轴连接件连接，提高安装过程中导管和导丝核芯之间同轴的准确性，通过同轴固定件对导丝核芯的位置进行固定，提高使用过程中导管和导丝核芯之间同轴的准确性。
The present invention belongs to the technical field of medical devices, and provides a catheter guidewire kit for interventional treatment, including a guidewire and a catheter, wherein the guidewire includes a guidewire core, a guidewire vertebral body is fixedly installed at the end of the guidewire core, a spring coil sheath is sleeved on the guidewire vertebral body, a cutting head is fixedly installed at the end of the spring coil sheath, and the guidewire core and the catheter are coaxially connected through a coaxial connector, a coaxial fixing piece is fixedly installed on one side of the coaxial connector, and the coaxial connector and the coaxial fixing piece are coaxially connected. A catheter guidewire kit for interventional treatment of the present invention improves the penetration and cutting ability of the guidewire tip for thrombus blood clots by fixing a cutting head at the end of the spring coil sheath; the guidewire core and the catheter are connected by a coaxial connector to improve the coaxial accuracy between the catheter and the guidewire core during installation, and the position of the guidewire core is fixed by a coaxial fixing piece to improve the coaxial accuracy between the catheter and the guidewire core during use.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a catheter guide wire sleeve member for interventional therapy.
Background
In the interventional operation treatment process, the catheter enters the blood vessel under the action of the guide wire, and the thrombus blood clot is taken out, so that the treatment purpose is achieved.
The tip cap is fixedly installed at the tip of the existing guide wire, the outer surface of the tip cap is spherical, the defect that the penetrability and the cutting capability of thrombus are poor is overcome, in addition, in the installation process of the guide wire and the guide tube, the guide wire is often inconvenient to measure due to the distance between the guide wire and the guide tube, and the position of the guide wire is also lack of a position reference piece to be corrected, so that the center line of the guide wire and the center line of the guide tube deviate after the guide wire is installed, the coaxiality between the guide wire and the guide tube is influenced, and the using effect is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the catheter guide wire kit for interventional therapy improves the penetrating and cutting capacity of the tip of the guide wire on thrombus blood clots and improves the accuracy of coaxiality between a catheter and a guide wire core in the installation and use processes.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides an interventional therapy is with pipe seal wire external member, includes seal wire and pipe, the seal wire includes the seal wire core, and the tip fixed mounting of seal wire core has the seal wire centrum, and the cover is equipped with the spring coil sheath on the seal wire centrum, and the tip fixed mounting of spring coil sheath has the cutting head, seal wire core and pipe pass through coaxial coupling spare coaxial coupling.
Further, the cutting head is a cutting blade, the cutting blade is fixedly connected with the spring ring sheath, and the cutting blade is in a scraper knife shape.
Further, the cutting head is a cutting piece, the cutting piece is fixedly connected with the spring ring sheath, the section of the cutting piece is trapezoid, the width of one end, far away from the spring ring sheath, of the cutting piece is smaller than the width of one end, close to the spring ring sheath, of the cutting piece, and one end, far away from the spring ring sheath, of the cutting piece is cutter-shaped.
Further, the number of the cutting pieces is two, the two cutting pieces are vertically arranged, the axial lines of the two cutting pieces coincide, and the two cutting pieces are fixedly connected with the spring ring sheath.
Further, the coaxial connector comprises a first fixing ring, a plurality of clamping blocks are uniformly arranged on the outer side face of the first fixing ring, a plurality of clamping grooves are uniformly formed in the inner side face of the guide pipe, the clamping grooves are in one-to-one correspondence with the clamping grooves, the clamping grooves are matched with the clamping blocks, a plurality of elastic fixing pieces are uniformly arranged on the inner side face of the first fixing ring, and the end portions of the elastic fixing pieces are abutted to the guide wire core.
Further, the coaxial mounting includes the second solid fixed ring, second solid fixed ring and first solid fixed ring coaxial coupling, two backup pads of fixed mounting in the second solid fixed ring, two backup pads symmetry sets up, and it is provided with two arc stationary blades to slide between two backup pads, and two arc stationary blades set up relatively, and the inboard shape of two arc stationary blades and the external profile looks adaptation of seal wire core, and the equal threaded connection in the corresponding position of second solid fixed ring and two arc stationary blades has adjusting screw, and adjusting screw's tip is rotated with the arc stationary blade and is connected.
Further, the elastic fixing piece comprises a telescopic block and a compression spring, a plurality of grooves matched with the telescopic block are formed in the inner side face of the first fixing ring, one end of the compression spring is fixedly connected with the side wall of the groove, the other end of the compression spring is fixedly connected with the telescopic block, and the telescopic block is in butt joint with the guide wire core.
Further, one side of the telescopic block, which is far away from the groove, is arranged in an arc shape, one side of the telescopic block, which is far away from the groove, is provided with an arc groove, and the guide wire core is arranged in the arc groove.
Further, sliding grooves are symmetrically formed in the side walls of the grooves, sliding blocks are symmetrically arranged on the two side faces of the telescopic blocks, and the sliding blocks are arranged in the sliding grooves.
Further, silicone oil or hydrophilic coating is coated on the guide wire core, the spring ring sheath and the cutting head.
According to the technical scheme, the cutting head is fixedly arranged at the end part of the spring ring sheath, so that the penetrating and cutting capacity of the tip of the guide wire to thrombus blood clots is improved, the guide wire cores are connected through the coaxial connecting piece, the coaxial accuracy between the guide wire cores and the guide wire cores in the installation process is improved, then the positions of the guide wire cores are fixed through the coaxial fixing piece, and the coaxial accuracy between the guide wire cores and the guide wire cores in the use process is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a cross-sectional view of a cutting head of the present invention in the form of a blade;
FIG. 2 is a cross-sectional view of a cutting head of the present invention having a trapezoidal cross-section;
FIG. 3 is a schematic view of the coaxial connector of the present invention;
FIG. 4 is a schematic view of the structure of the cutting head of the present invention in the form of a blade;
FIG. 5 is a schematic view of a cutting head formed by a cutting blade according to the present invention;
FIG. 6 is a schematic view of a cutting head formed by two cutting blades according to the present invention;
FIG. 7 is an enlarged view of the invention at A;
Fig. 8 is a schematic structural view of the coaxial fixing member of the present invention.
Reference numerals:
1-catheter, 2-guide wire core, 3-guide wire cone, 4-spring ring sheath, 5-cutting piece, 6-silicone oil or hydrophilic coating;
11-clamping grooves, 12-first fixing rings, 13-clamping blocks, 14-grooves, 15-compression springs, 16-telescopic blocks, 17-second fixing rings, 18-supporting plates and 19-arc-shaped fixing sheets;
141-sliding groove, 161-sliding block, 162-arc groove and 171-adjusting screw.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
Referring to fig. 1-8, the catheter guide wire kit for interventional therapy provided in this embodiment includes a guide wire and a catheter 1, the guide wire includes a guide wire core 2, a guide wire cone 3 is fixedly mounted at an end of the guide wire core 2, a spring ring sheath 4 is sleeved on the guide wire cone 3, a cutting head is fixedly mounted at an end of the spring ring sheath 4, and the guide wire core 2 and the catheter 1 are coaxially connected through a coaxial connector.
In actual use, the cutting head is fixedly arranged at the end part of the spring ring sheath 4, so that the penetrating and cutting capacity of the tip of the guide wire to thrombus blood clots is improved, the guide wire core 2 is connected with the guide wire core 2 through the coaxial connecting piece, the coaxial accuracy between the guide wire core 2 and the guide wire 1 in the installation process is improved, then the position of the guide wire core 2 is fixed through the coaxial fixing piece, and the coaxial accuracy between the guide wire core 2 and the guide wire 1 in the use process is improved.
In this embodiment, the cutting head is a cutting blade 5, the cutting blade 5 is fixedly connected with the spring ring sheath 4, the cutting blade 5 is in a shovel blade shape, the penetrating power of the cutting blade 5 is improved, and the cutting capability of the whole thrombus blood clot is improved.
In this embodiment, the cutting head is a cutting blade 5, the cutting blade 5 is fixedly connected with the spring ring sheath 4, the section of the cutting blade 5 is trapezoidal, the width of one end of the cutting blade 5 away from the spring ring sheath 4 is smaller than the width of one end of the cutting blade 5 close to the spring ring sheath 4, and one end of the cutting blade 5 away from the spring ring sheath 4 is cutter-shaped.
In actual use, the width of the end, far away from the spring ring sheath 4, of the cutting piece 5 is smaller than the width of the end, close to the spring ring sheath 4, of the cutting piece 5, the penetrating capacity of the cutting piece 5 to the center position of the thrombus blood clot is improved, and the end, far away from the spring ring sheath 4, of the cutting piece 5 is in a cutter shape, and the cutting capacity of the thrombus blood clot is improved.
In this embodiment, the number of the cutting pieces 5 is two, the two cutting pieces 5 are vertically arranged, the axial lines of the two cutting pieces 5 are coincident, and the two cutting pieces 5 are fixedly connected with the spring ring sheath 4.
In actual use, the two cutting blades 5 cooperate with each other to effectively break up the thrombus clot as the cutting head passes through the central region of the thrombus clot.
In this embodiment, the coaxial connector includes a first fixing ring 12, the outer side surface of the first fixing ring 12 is uniformly provided with a plurality of clamping blocks 13, the inner side surface of the catheter 1 is uniformly provided with a plurality of clamping grooves 11, the plurality of clamping blocks 13 and the plurality of clamping grooves 11 are in one-to-one correspondence, the clamping grooves 11 are matched with the clamping blocks 13, the inner side surface of the first fixing ring 12 is uniformly provided with a plurality of elastic fixing pieces, and the end parts of the plurality of elastic fixing pieces are all abutted to the guide wire core 2.
In actual use, the size of the first fixing ring 12 is matched with the inner diameter of the catheter 1, the clamping block 13 on the first fixing ring 12 is arranged in the clamping groove 11, the coaxial connection of the first fixing ring 12 and the catheter 1 is realized, the guide wire core 2 is arranged among a plurality of elastic fixing pieces, the center line of the guide wire core 2 is overlapped with the center line of the catheter 1 under the supporting action of the elastic fixing pieces, and the coaxial accuracy between the catheter 1 and the guide wire core 2 in the installation process is improved.
In this embodiment, the coaxial fixing member includes a second fixing ring 17, the second fixing ring 17 is coaxially connected with the first fixing ring 12, two support plates 18 are fixedly installed in the second fixing ring 17, the two support plates 18 are symmetrically arranged, two arc fixing plates 19 are slidably arranged between the two support plates 18, the two arc fixing plates 19 are oppositely arranged, the inner side shape of the arc fixing plates 19 is matched with the outer contour of the guide wire core 2, the positions of the second fixing ring 17 corresponding to the two arc fixing plates 19 are both in threaded connection with an adjusting screw 171, and the end part of the adjusting screw 171 is rotationally connected with the arc fixing plates 19.
In actual use, after the central position of the guide wire core 2 in the catheter 1 is determined, the arc-shaped fixing pieces 19 are pushed to move by the rotary adjusting screw 171, the guide wire core 2 is fixed at the central position of the catheter 1 by the mutual matching of the two arc-shaped fixing pieces 19, and at the moment, the inner side surface of the arc-shaped fixing pieces 19 is in contact with the guide wire core 2, so that the guide wire core 2 is fixed, and the sliding of the guide wire core 2 relative to the arc-shaped fixing pieces 19 is not affected. The second fixing ring 17 can be arranged in the catheter 1 or outside the catheter 1, and when the second fixing ring 17 is arranged in the catheter 1, a mounting hole matched with the adjusting screw 171 is formed in the catheter 1, so that the adjusting screw 171 can be connected with the second fixing ring 17 in a threaded manner through the mounting hole. The supporting blocks are fixedly installed at the two ends of the arc-shaped fixing piece 19, the two supporting plates are provided with the placing grooves matched with the supporting blocks, the supporting blocks slide along the placing grooves in the sliding process of the arc-shaped fixing piece 19, and the stability of the arc-shaped fixing piece 19 in the sliding process is maintained.
In this embodiment, the elastic fixing piece includes a telescopic block 16 and a compression spring 15, the inner side surface of the first fixing ring 12 is provided with a plurality of grooves 14 adapted to the telescopic block 16, one end of the compression spring 15 is fixedly connected with the side wall of the groove 14, the other end of the compression spring 15 is fixedly connected with the telescopic block 16, and the telescopic block 16 is abutted to the guide wire core 2.
In actual use, the guide wire core 2 is arranged among the telescopic blocks 16, under the supporting action of the telescopic blocks 16, the central line of the guide wire core 2 is overlapped with the central line of the catheter 1, and when the guide wire core 2 is subjected to position deviation, the central position of the catheter 1 can be automatically restored under the elastic action of the compression spring 15.
In this embodiment, a side of the telescopic block 16 away from the groove 14 is provided with a circular arc shape, a side of the telescopic block 16 away from the groove 14 is provided with a circular arc groove 162, and the guide wire core 2 is placed in the circular arc groove 162.
In actual use, the circular arc-shaped arrangement of the telescopic block 16 reduces the friction force received in the moving process of the guide wire core 2, and the guide wire core 2 is always arranged in the circular arc groove 162 in the moving process of the guide wire core 2, so that the guide wire core 2 is conveniently positioned.
In this embodiment, the side wall of the groove 14 is symmetrically provided with a sliding groove 141, and two sides of the telescopic block 16 are symmetrically provided with sliding blocks 161, wherein the sliding blocks 161 are arranged in the sliding groove 141.
In actual use, during the expansion and contraction process of the expansion and contraction block 16, the sliding block 161 moves along the sliding groove 141, so that the stability of the sliding process of the sliding block 161 is improved, and the sliding groove 141 and the sliding block 161 are mutually matched, so that the displacement of the sliding block 161 can be limited, and the expansion and contraction block 16 is prevented from being separated from the groove 14.
In this embodiment, silicone oil or hydrophilic coating 6 is coated on the guide wire core 2, the spring ring sheath 4 and the cutting head, and the silicone oil or hydrophilic coating 6 makes the surface of the guide wire smoother, reduces the passing resistance of the guide wire, and improves the tracking performance.
It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit the technical solution of the present invention, and although the detailed description of the present invention is given with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention, and all the modifications or substitutions are included in the scope of the claims and the specification of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652474.4A CN113303874B (en) | 2021-06-11 | 2021-06-11 | A catheter guidewire kit for interventional therapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110652474.4A CN113303874B (en) | 2021-06-11 | 2021-06-11 | A catheter guidewire kit for interventional therapy |
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| Publication Number | Publication Date |
|---|---|
| CN113303874A CN113303874A (en) | 2021-08-27 |
| CN113303874B true CN113303874B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110652474.4A Active CN113303874B (en) | 2021-06-11 | 2021-06-11 | A catheter guidewire kit for interventional therapy |
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| CN (1) | CN113303874B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120393239B (en) * | 2025-07-03 | 2025-08-29 | 吉林大学第一医院 | Sheath-free micro-catheter interventional kit for upper limb access |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215606066U (en) * | 2021-06-11 | 2022-01-25 | 北京市神经外科研究所 | Catheter guide wire kit for interventional therapy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070088230A1 (en) * | 2005-09-06 | 2007-04-19 | Fmd Co., Ltd | Medical instrument and medical equipment for treatment, and rotational handle device |
| US8062316B2 (en) * | 2008-04-23 | 2011-11-22 | Avinger, Inc. | Catheter system and method for boring through blocked vascular passages |
| CN106901799B (en) * | 2017-04-12 | 2019-04-09 | 山东大学 | A thrombectomy system, preparation method and working method |
| CN209450730U (en) * | 2018-05-18 | 2019-10-01 | 李征 | A kind of device for the clinical medical protective cradle conveying of coronary heart disease |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN215606066U (en) * | 2021-06-11 | 2022-01-25 | 北京市神经外科研究所 | Catheter guide wire kit for interventional therapy |
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