CN111759400A - Biliary tract stone taking hook - Google Patents
Biliary tract stone taking hook Download PDFInfo
- Publication number
- CN111759400A CN111759400A CN202010659318.6A CN202010659318A CN111759400A CN 111759400 A CN111759400 A CN 111759400A CN 202010659318 A CN202010659318 A CN 202010659318A CN 111759400 A CN111759400 A CN 111759400A
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- China
- Prior art keywords
- guide
- guide wire
- block
- calculus removing
- calculus
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22034—Gripping instruments, e.g. forceps, for removing or smashing calculi for gripping the obstruction or the tissue part from inside
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
- A61B2017/22035—Gripping instruments, e.g. forceps, for removing or smashing calculi for retrieving or repositioning foreign objects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
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- 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)
- Surgical Instruments (AREA)
Abstract
The invention discloses a biliary tract calculus removing hook, belonging to the technical field of medical appliances, comprising a catheter, wherein the head end of the catheter is provided with an opening; the guide wire is arranged in the catheter, and the head end of the guide wire extends out from the opening; the stone taking part is fixed on the guide wire and positioned outside the guide wire, when the guide wire is tensioned inwards, the stone taking part is bent towards one side and forms a hook shape, and when the guide wire is pushed outwards, the stone taking part is arranged linearly. According to the invention, the stone taking part is arranged at the head end of the guide wire, is linearly arranged in the original state, can extend into the biliary tract, bypasses the stone from the side edge of the stone and continuously extends inwards, and at the moment, the guide wire is tensioned inwards, so that the stone taking part can be bent towards the same side to form a hook shape, and the stone is hooked and pulled outwards.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a biliary tract calculus removing hook.
Background
In the prior art, two methods can be used to remove stones from the biliary tract.
One way is to use a calculus removal basket to remove the calculus from the biliary tract, but the failure rate of using the basket to remove the calculus is high, and when touching a large calculus, or when the calculus is located in a narrow space such as the gallbladder neck region, the basket will not be able to be effectively opened, and even if opened, the basket often also cannot capture a large calculus.
The other mode is that the lithotomy forceps are used for stretching into the biliary tract to clamp and remove the calculus, the lithotomy forceps are toothless forceps with radian, the head of the forceps is hollow and square, the lithotomy forceps need to completely remove the calculus by feeling, the calculus is not easy to remove, the head of the forceps is easy to crush, and in addition, the head of the forceps is large and blunt and cannot stretch into the far end of the biliary tract to remove the calculus.
Disclosure of Invention
The invention aims to provide a bile duct calculus removing hook which can effectively remove large calculus in a bile duct aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme:
a biliary tract calculus removing hook comprises:
a guide pipe, the head end of which is provided with an opening;
the guide wire is arranged inside the catheter, and the head end of the guide wire extends outwards from the opening;
the stone taking part is fixed on the guide wire and positioned outside the guide pipe, when the guide wire is tensioned inwards, the stone taking part is bent towards one side and forms a hook shape, and when the guide wire is pushed outwards, the stone taking part is arranged linearly.
As a further improvement of the invention, the stone removing part comprises a front guide block, a rear guide block and a plurality of middle guide blocks, and when the stone removing part is arranged in a straight line, a distance is reserved between the adjacent guide blocks.
As a further improvement of the invention, the head end of the guide wire is fixed in the leading block, the leading block is used as an extending end, and the head of the leading block is arranged to be circular.
As a further improvement of the invention, the rear guide block is close to the opening, and the contact surface between the rear guide block and the opening is horizontally arranged.
As a further improvement of the present invention, the front end surfaces and the rear end surfaces of the plurality of intermediate guide shoes are respectively provided with inclined surfaces, and the inclination degree of the front end surfaces is greater than that of the rear end surfaces.
As a further improvement of the present invention, the calculus removing unit includes a main guide block, and when the main guide block is aligned with the guide pipe, a distance is left between the main guide block and the guide pipe.
As a further improvement of the invention, the front end surface of the main guide block is set to be a curved surface, the rear end surface of the main guide block is set to be an inclined surface, the opening of the guide pipe is set to be an inclined surface, and the inclination degree of the inclined surface at the opening of the guide pipe is greater than that of the inclined surface at the rear end surface of the main guide block.
As a further improvement of the invention, the tail end of the guide wire is connected with an adjusting rod.
As a further improvement of the invention, the tail end of the conduit is connected with a connecting handle, and the head end of the adjusting rod extends into the connecting handle and is connected with the connecting handle through threads.
As a further improvement of the invention, the tail end of the adjusting rod is provided with a rotary block.
Compared with the prior art, the invention has the following beneficial effects:
the lithotomy section is arranged at the head end of the guide wire, the lithotomy section and the guide wire are in the same straight line in the original state, when the choledochoscope extends into the biliary tract and finds out a calculus, the lithotomy section extends from the choledochoscope to the position of the calculus, and continues to extend into the biliary tract from the side edge around the calculus, the guide wire is pulled backwards by the adjusting rod through rotating the rotary block at the tail end of the adjusting rod, the lithotomy section can be bent towards the same direction under the pulling action and forms a hook shape, the lithotomy section and the guide wire edge form a lithotomy hook, the lithotomy hook hooks the lithotomy section from the rear part of the calculus, the calculus can be taken out by pulling outwards, the lithotomy section at the tail end of the adjusting rod is rotated reversely after the lithotomy section is completed, the guide wire and the lithotomy section can be reset, the whole lithotomy process is simple and easy to operate, the lithotomy section is free of firstly crushing and then taking out the calculus one by.
Drawings
FIG. 1 is a cross-sectional view of a calculus removing section of a first embodiment of the present invention, the calculus removing section being linearly disposed;
FIG. 2 is a cross-sectional view of a hook-shaped stone removing portion according to a first embodiment of the present invention;
FIG. 3 is a partial structural view of the calculus removing section entering the biliary tract to remove calculus according to the first embodiment of the present invention;
fig. 4 is a partial structural schematic view of the main guide block entering the biliary tract to remove stones in the second embodiment of the present invention.
In the figure, 100, the catheter; 101. an opening; 110. a guide wire; 120. a stone taking part; 121. a leader block; 122. a rear guide block; 123. a middle guide block; 124. a main guide block; 130. adjusting a rod; 140. a connecting handle; 150. and (6) rotating the block.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the present invention provides a biliary tract calculus removing hook, which comprises a catheter 100, a guide wire 110 and a calculus removing part 120,
example one
The head end of the catheter 100 is provided with an opening 101, the catheter 100 is preferably a flexible tube and can be deformed, and when the choledochoscope extends into the biliary tract and finds the calculus, the catheter 100 can extend into the position where the calculus is located from the inside of the choledochoscope.
The guide wire 110 is arranged inside the catheter 100, the head end of the guide wire 110 extends outwards from the opening 101, the tail end of the guide wire 110 is connected to the adjusting rod 130, when the adjusting rod 130 is moved, the guide wire 110 can be pulled along with the adjusting rod, the guide wire 110 plays a role in guiding and supporting the catheter 100 and is used for helping the catheter 100 to enter the biliary tract, the guide catheter 100 smoothly reaches the position where the calculus is located, in addition, the head end of the guide wire 110 of the embodiment is preferably arranged to be bendable, therefore, the head end of the guide wire 110 can be bent towards the same direction under the action of external force, and therefore the head end of the guide wire 110 can form a hook shape and is convenient for hooking the calculus and then outwards pulling out.
The calculus removing part 120 is fixed on the guide wire 110 and located outside the catheter 100, when the guide wire 110 is tensioned inwards, the calculus removing part 120 is bent towards one side and forms a hook shape, the calculus removing part 120 which is arranged in the hook shape in the state can hook large calculus in the biliary tract and pull out the large calculus, when the guide wire 110 is pushed outwards, the calculus removing part 120 is arranged in a straight line, and the calculus removing part 120 in the state can stretch into the choledochoscope until the calculus in the biliary tract is located.
Specifically, the calculus removing part 120 includes a leading block 121, a rear block 122 and a plurality of middle blocks 123, which are arranged on the guide wire 110 at equal intervals, wherein the head end of the guide wire 110 is fixed in the leading block 121, the leading block 121 serves as an extending end, the head of the leading block is set to be circular, damage to the wall of the biliary tract can be avoided in the process of extending into the biliary tract or removing calculus, the rear block 122 is close to the opening 101 of the catheter 100, and the contact surface between the rear block 122 and the opening 101 is horizontally arranged, so that when the guide wire 110 is tensioned, the rear block 122 cannot slip from the opening of the catheter 100, the adhesion between the whole calculus removing part 120 and the catheter 100 at the moment is improved, and the working stability is further improved.
The front end surface and the rear end surface of the plurality of middle guide blocks 123 are respectively provided with an inclined surface, and the inclination degree of the front end surface is greater than that of the rear end surface, when the adjusting rod 130 is controlled to pull the guide wire 110 towards the inside of the catheter 100, the guide wire 110 is pulled inwards until the rear guide block 122 abuts against the opening 101 of the catheter 100, at which time, the guide wire 110 is pulled continuously, the front guide block 121, the rear guide block 122 and the plurality of intermediate guide blocks 123 are tightly attached together under the pulling of the guide wire 110, and the inclination of the rear end surface of the leading block 121 is kept identical to the rear end surface of the intermediate guide block 123, the inclination of the front end surface of the trailing block 122 is kept identical to the front end surface of the intermediate guide block 123, when the adjacent guide blocks are tensioned, all the guide blocks can be bent towards the same direction to form a hook shape, and the calculus removing part and the guide wire form a calculus removing hook so as to be convenient for hooking calculus and removing calculus.
In actual work, when the calculus extractor is inserted into a biliary tract, the guide wire 110 is linearly arranged, the guide blocks 121 are fixed on the guide wire 110 outside the catheter 100 at equal intervals, the catheter 100 continuously extends into the biliary tract, when a large calculus is encountered, the guide blocks 121 at the extending end are controlled to bypass the calculus from the side surface of the calculus and continuously extend inwards until a plurality of guide blocks 121 on the guide wire 110 bypass the calculus and extend inwards, at the moment, the guide wire 110 is pulled towards the direction in the catheter 100 by controlling the adjusting rod 130 until the guide wire 110 and the guide blocks 121 form a calculus extracting hook, at the moment, the stone can be hooked from the back by the hooks formed by the guide blocks 121, and then the whole calculus can be extracted outwards by pulling the calculus out, compared with a traditional calculus extracting tool, the calculus extracting hook can directly extract the large calculus without crushing the calculus first and then extracting the crushed stones one by one, so that the whole calculus extracting process is efficient and easy to operate, simultaneously, the pain of the patient is also reduced.
Preferably, the adjusting rod 130 is connected to the tail end of the guide wire 110, the connecting handle 140 is connected to the tail end of the catheter 100, the head end of the adjusting rod 130 extends into the connecting handle 140, and the adjusting rod 130 and the connecting handle are connected through threads, and the rotating block 150 is arranged at the tail end of the adjusting rod 130, so that the adjusting rod 130 can be controlled to be screwed out or screwed in by rotating the rotating block 150, and the guide wire 110 is pulled conveniently and quickly.
Specifically, when the calculus removing operation is required, the rotating block 150 is rotated outwards, the adjusting rod 130 is controlled to be rotated outwards, the guide wire 110 is pulled until the guide block 121 abuts against the catheter 100, the adjusting rod 130 is rotated outwards continuously, the guide wire 110 is tensioned, the guide wire 110 and the guide blocks 121 can form a calculus removing hook, after the calculus removing operation is completed, when the adjusting rod 130 is screwed inwards, the guide wire 110 can be pushed out from the catheter 100, the guide blocks 121 are not attached to each other and extruded at the moment, the guide wire 110 is reset to be a straight line, and the guide blocks 121 are arranged on the guide wire 110 at equal intervals, so that the guide wire 110 can be conveniently stretched into the biliary tract again.
Example two
In the second embodiment of the present invention, under the condition that other technical features are not changed, as shown in fig. 4, the calculus removing unit 120 includes a main guide block 124, before the calculus removing unit is inserted into the biliary tract, the main guide block 124 and the catheter 100 are in the same line and have a distance therebetween, the front end surface of the main guide block 124 is a curved surface, i.e. the head is circular, so as to avoid damage to the wall of the biliary tract during insertion or calculus removing, the rear end surface of the main guide block 124 is an inclined surface with a smaller inclination degree, and the opening 101 of the catheter 100 is an inclined surface with a larger inclination degree, preferably, the opening 101 of the catheter 100 is an inclined surface with an inclination angle of 45 ° -60 °, so that when the calculus removing unit is required, when the guide wire 110 is pulled inward, the rear end surface of the main guide block 124 is attached to the opening 101 of the catheter 100, the main guide block 124 can be bent to be at least horizontally arranged, the head end of the guide tube 100 is bent in the same direction under the driving of the main guide block 124, and the main guide block 124 and the guide tube 100 can also form a hook shape, so that the calculus can be pulled out.
The technical means disclosed by the scheme of the invention are not limited to the technical means disclosed by the technical means, and the technical scheme also comprises the technical scheme formed by any combination of the technical characteristics. The foregoing is a detailed description of the invention, and it should be noted that modifications and adaptations can be made by those skilled in the art without departing from the principle of the invention, and are intended to be within the scope of the invention.
Claims (10)
1. A biliary tract calculus removing hook is characterized by comprising:
a guide pipe, the head end of which is provided with an opening;
a guidewire disposed inside the catheter;
the stone taking part is fixed on the guide wire and positioned outside the guide pipe, when the guide wire is tensioned inwards, the stone taking part is bent towards one side and forms a hook shape, and when the guide wire is pushed outwards, the stone taking part is arranged linearly.
2. The biliary tract calculus removing hook according to claim 1, wherein the calculus removing portion comprises a front guide block, a rear guide block, and a plurality of intermediate guide blocks, and when the calculus removing portion is disposed linearly, a distance is left between adjacent guide blocks.
3. The biliary calculus removing hook according to claim 2, wherein the head end of the guide wire is fixed in the leading block, and the head of the leading block is configured to be circular as an extending end.
4. The biliary calculus removing hook according to claim 2, wherein the rear guide block is close to the opening, and a contact surface between the rear guide block and the opening is horizontally disposed.
5. The biliary tract calculus removing hook according to claim 2, wherein the front end surfaces and the rear end surfaces of the plurality of intermediate guide blocks are respectively provided with slopes, and the slope degree of the front end surfaces is greater than the slope degree of the rear end surfaces.
6. The hook of claim 1, wherein the lithotomy section comprises a guide block, and a distance is left between the guide block and the catheter when the guide block and the catheter are in alignment.
7. The biliary calculus removing hook according to claim 6, wherein the front end surface of the main guide block is a curved surface, the rear end surface of the main guide block is an inclined surface, the opening of the guide tube is an inclined surface, and the inclined surface at the opening of the guide tube is inclined to a greater degree than the inclined surface at the rear end surface of the main guide block.
8. The biliary calculus removing hook according to claim 1, wherein an adjusting rod is connected to the end of the guide wire.
9. The biliary calculus removing hook according to claim 8, wherein a connection handle is connected to a tail end of the catheter, and a head end of the adjustment rod extends into the connection handle and is connected with the adjustment rod through a screw thread.
10. The biliary calculus removing hook according to claim 8, wherein the adjusting rod has a rotating block at the end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021173871 | 2020-06-22 | ||
| CN2020211738710 | 2020-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111759400A true CN111759400A (en) | 2020-10-13 |
Family
ID=72726178
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021345487.4U Expired - Fee Related CN213189930U (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
| CN202010659318.6A Pending CN111759400A (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021345487.4U Expired - Fee Related CN213189930U (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN213189930U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754602A (en) * | 2020-12-31 | 2021-05-07 | 至善介入消融技术研究院(南京)有限公司 | Grabber for foreign matters in human body cavity |
| CN113812998A (en) * | 2021-09-18 | 2021-12-21 | 王建 | Puncture reconstruction system for ventricular aneurysm |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100194A (en) * | 1985-04-01 | 1986-07-30 | 西安市国营华山机械制造厂 | Micro blasting operation device in vivo |
| US5190557A (en) * | 1991-10-03 | 1993-03-02 | Urological Instrument Research, Inc. | Vibratory method and instrument for extracting stones from urinary tract |
| DE19710392C1 (en) * | 1997-03-13 | 1999-07-01 | Haehnel Michael | Slipped disc implant comprises an extensible, hinged or wound body |
| US20060036273A1 (en) * | 2004-08-11 | 2006-02-16 | Tzony Siegal | Spinal surgery system and method |
| US20080275464A1 (en) * | 2005-03-29 | 2008-11-06 | Boston Scientific Scimed, Inc. | Articulating retrieval device |
| US20100211076A1 (en) * | 2008-10-13 | 2010-08-19 | Dfine, Inc. | Systems for treating a vertebral body |
| CN101909532A (en) * | 2007-11-16 | 2010-12-08 | 奥赛恩治疗公司 | Controlled vertebroplasty system with coelosis parts |
| CN103006293A (en) * | 2013-01-05 | 2013-04-03 | 彭风华 | Transurethral bladder stone crushing and fetching bent sheath |
-
2020
- 2020-07-09 CN CN202021345487.4U patent/CN213189930U/en not_active Expired - Fee Related
- 2020-07-09 CN CN202010659318.6A patent/CN111759400A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100194A (en) * | 1985-04-01 | 1986-07-30 | 西安市国营华山机械制造厂 | Micro blasting operation device in vivo |
| US5190557A (en) * | 1991-10-03 | 1993-03-02 | Urological Instrument Research, Inc. | Vibratory method and instrument for extracting stones from urinary tract |
| DE19710392C1 (en) * | 1997-03-13 | 1999-07-01 | Haehnel Michael | Slipped disc implant comprises an extensible, hinged or wound body |
| US20060036273A1 (en) * | 2004-08-11 | 2006-02-16 | Tzony Siegal | Spinal surgery system and method |
| US20080275464A1 (en) * | 2005-03-29 | 2008-11-06 | Boston Scientific Scimed, Inc. | Articulating retrieval device |
| CN101909532A (en) * | 2007-11-16 | 2010-12-08 | 奥赛恩治疗公司 | Controlled vertebroplasty system with coelosis parts |
| US20100211076A1 (en) * | 2008-10-13 | 2010-08-19 | Dfine, Inc. | Systems for treating a vertebral body |
| CN103006293A (en) * | 2013-01-05 | 2013-04-03 | 彭风华 | Transurethral bladder stone crushing and fetching bent sheath |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754602A (en) * | 2020-12-31 | 2021-05-07 | 至善介入消融技术研究院(南京)有限公司 | Grabber for foreign matters in human body cavity |
| CN113812998A (en) * | 2021-09-18 | 2021-12-21 | 王建 | Puncture reconstruction system for ventricular aneurysm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN213189930U (en) | 2021-05-14 |
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Application publication date: 20201013 |