CN213189930U - Biliary tract stone taking hook - Google Patents
Biliary tract stone taking hook Download PDFInfo
- Publication number
- CN213189930U CN213189930U CN202021345487.4U CN202021345487U CN213189930U CN 213189930 U CN213189930 U CN 213189930U CN 202021345487 U CN202021345487 U CN 202021345487U CN 213189930 U CN213189930 U CN 213189930U
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- Prior art keywords
- guide
- guide wire
- stone
- calculus
- block
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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
Abstract
The utility model discloses a biliary tract stone-taking hook, belonging to the technical field of medical apparatus, comprising a catheter, the head end of which is arranged as 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. The utility model discloses a head end at the seal wire sets up gets stone portion, it is sharp setting to get stone portion under original condition, can stretch into in the biliary tract, and walk around and continue inwards to stretch into from the calculus side, through inside taut seal wire this moment, it can be hooked to the crooked formation of homonymy to get stone portion, catch the calculus after outwards pull out can, whole get the simple easy operation of stone process, need not to hit the stone earlier and break up the rubble again and take out one by one, the efficiency is improved, patient's misery has also been reduced.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to 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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems in the prior art and providing a bile duct calculus removing hook which can effectively remove large calculus in a bile duct.
The purpose of the utility model can be realized by the following technical proposal:
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, 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 linearly arranged, a distance is reserved between the adjacent guide blocks.
As a further improvement, the head end of the guide wire is fixed in the front guide block, the front guide block is used as an extension end, and the head of the front guide block is set to be circular.
As a further improvement of the present invention, the rear guide block is close to the opening, and the rear guide block is disposed at the contact surface level between the openings.
As the utility model discloses a further improvement, it is a plurality of the preceding terminal surface of middle guide block sets up to the inclined plane respectively with the rear end face, and the degree of inclination of preceding terminal surface is greater than the degree of inclination of rear end face.
As a further improvement of the present invention, the stone removing portion includes a main guide block, and when the main guide block is in the same straight line with the guide pipe, the main guide block is spaced from the guide pipe.
As a further improvement, the preceding terminal surface of leading piece sets up to the curved surface, the rear end face of leading piece sets up to the inclined plane, the opening part of pipe sets up to the inclined plane, and the degree of slope on pipe opening part inclined plane is greater than the degree of slope on leading piece rear end face inclined plane.
As a further improvement of the utility model, the tail end connection of seal wire has the regulation pole.
As a further improvement of the utility model, the tail end connection of pipe has the connection handle, it stretches into to adjust the pole head end in the connection handle and through threaded connection.
As a further improvement of the utility model, the tail end of the adjusting rod is provided with a rotary block.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model arranges the stone taking part at the head end of the guide wire, the stone taking part and the guide wire in the original state are on the same straight line, when the choledochoscope extends into the biliary tract and finds the calculus, the utility model extends into the choledochoscope from the inside of the choledochoscope until the calculus is positioned, and the side edge of the guide rod is extended into the biliary tract by bypassing the calculus, at the moment, the adjusting rod pulls the guide wire backwards by rotating the rotary block at the tail end of the adjusting rod, the calculus removing part can be bent towards the same direction under the pulling, and forms a hook shape, at the moment, the calculus removing part and the guide wire edge form a calculus removing hook, this get stone hook catches on it from calculus rear portion, outside pulling alright take out the calculus, accomplishes to get the stone after, the piece soon of reverse rotation regulation pole tail end again, the seal wire and get the stone portion and can reset, whole stone process of getting is simple easily operated, need not to smash the calculus earlier and take out the rubble one by one again, has improved efficiency, has also reduced patient's misery.
Drawings
Fig. 1 is a cross-sectional view of a first embodiment of the present invention, in which a stone removing portion is linearly disposed;
FIG. 2 is a cross-sectional view of the hook-shaped stone removing portion according to the first embodiment of the present invention;
FIG. 3 is a schematic view of a portion of the first embodiment of the present invention when the calculus removing portion enters the biliary tract to remove calculus;
fig. 4 is a schematic view of a part of the structure of the second embodiment of the present invention when the main guide block enters the biliary tract to take out the calculus.
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 the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, the utility model 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 portion 120 includes a main guide block 124, before extending into the biliary tract, the main guide block 124 and the catheter 100 are in the same straight 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 set to be circular, so as to avoid damaging the wall of the biliary tract when extending or during calculus removing, the rear end surface of the main guide block 124 is set to be an inclined surface with a smaller inclination degree, and the opening 101 of the catheter 100 is set to be an inclined surface with a larger inclination degree, preferably, the opening 101 of the catheter 100 is preferably set to be an inclined surface with an inclination angle of 45-60 degrees, thereby, when calculus is required to be removed, when the guide wire 110 is tensioned inwards, 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, 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 utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme formed by the arbitrary combination of the technical characteristics. The above is a detailed implementation manner of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present 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;
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.
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 |
|---|---|---|---|
| CN2020211738710 | 2020-06-22 | ||
| CN202021173871 | 2020-06-22 |
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| Publication Number | Publication Date |
|---|---|
| CN213189930U true CN213189930U (en) | 2021-05-14 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010659318.6A Pending CN111759400A (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
| CN202021345487.4U Active CN213189930U (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010659318.6A Pending CN111759400A (en) | 2020-06-22 | 2020-07-09 | Biliary tract stone taking hook |
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| CN (2) | CN111759400A (en) |
Families Citing this family (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 |
| CN113812998B (en) * | 2021-09-18 | 2023-06-23 | 王建 | Puncture reconstruction system for parietal tumor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100194B (en) * | 1985-04-01 | 1986-10-29 | 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 |
| US7503920B2 (en) * | 2004-08-11 | 2009-03-17 | Tzony Siegal | Spinal surgery system and method |
| US20060229638A1 (en) * | 2005-03-29 | 2006-10-12 | Abrams Robert M | Articulating retrieval device |
| US20090131867A1 (en) * | 2007-11-16 | 2009-05-21 | Liu Y King | Steerable vertebroplasty system with cavity creation element |
| US8758349B2 (en) * | 2008-10-13 | 2014-06-24 | 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 |
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2020
- 2020-07-09 CN CN202010659318.6A patent/CN111759400A/en active Pending
- 2020-07-09 CN CN202021345487.4U patent/CN213189930U/en active Active
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| CN111759400A (en) | 2020-10-13 |
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