Endoscope biliary tract sealed stone extractor

Abstract

The utility model discloses an endoscope biliary tract sealing type stone extractor, which relates to the technical field of stone extractors, and comprises a sealing mechanism, the sealing mechanism comprises a guide tube, and the guide tube is provided with a first inflation assembly penetrating through the outer wall of the guide tube; and the calculus removing mechanism comprises a calculus removing pipe, the outer wall of the guide pipe is sleeved with the calculus removing pipe, multiple sets of abutting assemblies are hinged to the end of the outer wall of the calculus removing pipe through hinge shafts, and a second air inflation assembly penetrating through the outer wall of the calculus removing pipe is installed on the outer wall of the calculus removing pipe. The first inflation assembly is inflated to expand and block the bile duct, then the second inflation assembly is inflated to expand and drive the abutting assembly to make contact with the inner wall of the bile duct, then the calculus removing pipe is pulled to automatically drive calculus to move in the bile duct till the calculus is separated from the bile duct, the bile duct can be conveniently sealed in the calculus cleaning process, and the calculus removing efficiency is improved. Bile is prevented from overflowing the abdominal cavity as much as possible during operation, and the risk of abdominal cavity pollution during operation can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithotripters, in particular to a laparoscope bile duct sealed lithotripter. Background Art

[0002] The application of choledochoscope plays an important role in the surgical treatment of many biliary stones. At present, choledochoscope stone removal is mainly completed in clinical practice with the help of stone removal basket. The use of biliary stone removal balloon is another method of biliary stone removal. The specific method is to first send the uninflated balloon into the bile duct along the guide wire, so that the balloon part passes over the target bile duct with stones, and then inflate it to form a round balloon to fill the bile duct, and then pull the inflated balloon out of the target bile duct along the guide wire. However, this technical solution still has shortcomings, as follows:

[0003] In the process of laparoscopic common bile duct lithotomy, the existing choledochoscope cannot be sealed with the common bile duct incision, resulting in the saline injected into the bile duct from the choledochoscope overflowing from the incision, causing bile and stones to overflow and contaminate the abdominal cavity, increasing the patient's chance of postoperative infection. To this end, we propose a laparoscopic biliary sealed lithotripter to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and application title of the utility model to avoid blurring the purpose of this section, specification abstract and application title, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a laparoscopic biliary sealed lithotripter, which can solve the problem that during the laparoscopic common bile duct lithotomy, the normal saline injected into the bile duct from the choledochoscope will overflow from the incision.

[0006] The utility model provides a laparoscopic biliary sealed lithotripter, which adopts the following technical solutions:

[0007] A laparoscopic biliary sealed lithotripter comprises a sealing mechanism, which comprises a guide tube, on which a first inflation component penetrating the outer wall of the guide tube is installed;

[0008] The stone removal mechanism comprises a stone removal tube, which is sleeved on the outer wall of the guide tube, the end of the outer wall of the stone removal tube is hinged with multiple groups of abutment components through a hinge shaft, and the outer wall of the stone removal tube is installed with a second inflation component that penetrates the outer wall of the stone removal tube.

[0009] By adopting the above technical solution, the first inflatable component is inflated and sealed with air to block the bile duct, and then the second inflatable component is inflated and drives the abutment component to contact the inner wall of the bile duct, and then the stone removal tube is pulled to automatically drive the stone to move inside the bile duct until it is separated from the bile duct, so that the bile duct can be sealed during the stone cleaning process, and bile can be prevented from overflowing from the abdominal cavity during the operation as much as possible, which can reduce the risk of intraoperative contamination of the abdominal cavity.

[0010] Optionally, the first inflation component includes a first inflation connecting nozzle, which is fixedly sleeved on the end position of the outer wall of the guide tube, the inner wall of the first inflation connecting nozzle is connected to the first inflation connecting tube that passes through the outer wall of the guide tube, and the end position of the first inflation connecting tube is installed with a first airbag.

[0011] By adopting the above technical solution, the first inflation connection nozzle is placed in front of the stone, and gas is filled into the first inflation connection nozzle using the first air bag and the first inflation connection tube so that the first inflation connection nozzle is inflated and blocks the bile duct.

[0012] Optionally, the abutment assembly includes an abutment frame, which is hinged to the outer wall of the stone removal tube through a hinge shaft, the inner wall of the abutment frame is fixed with a spring connected to the outer wall of the stone removal tube, and the outer wall of the abutment frame is evenly fixed with multiple groups of abutment blocks.

[0013] Optionally, the second inflation component includes a second airbag, which is fixedly sleeved on the end position of the outer wall of the stone removal tube, the inner wall of the second airbag is connected to a second inflation connecting tube that passes through the outer wall of the stone removal tube, and the end position of the second inflation connecting tube is installed with a second inflation connecting nozzle.

[0014] By adopting the above technical solution, gas is filled into the second airbag using the second inflation connection nozzle and the second inflation connection tube, so that the second airbag is inflated and expands, driving the abutment frame to rotate and tilt through the hinge axis and make its top wall contact with the inner wall of the bile duct, thereby facilitating the cleaning of stones.

[0015] Optionally, a plurality of sets of viewing mirror assemblies are installed on the outer wall of the stone removal tube.

[0016] Optionally, the viewing mirror assembly includes a choledochoscope, which is fixed obliquely on the outer wall of the lithotripsy tube, and the end of the choledochoscope is connected to a connecting wire that passes through the outer wall of the lithotripsy tube.

[0017] By adopting the above technical solution, medical personnel can check the location of stones in the bile duct with the help of a choledochoscope and a connecting wire.

[0018] Optionally, a plurality of through holes are evenly formed on the outer wall of one side of the stone removal tube, and a liquid injection tube is connected to the end of the other side of the stone removal tube.

[0019] By adopting the above technical solution, physiological saline is injected into the inner cavity of the stone removal tube using an injection tube and sprayed onto the inner wall of the bile duct through multiple groups of through holes, thereby automatically removing small-volume stones under the flushing of physiological saline.

[0020] Optionally, a guide head is fixed to the end of the guide tube.

[0021] By adopting the above technical solution, the guide tube can be guided conveniently under the action of the guide head.

[0022] In summary, the present invention has at least one of the following beneficial effects:

[0023] First, the first inflatable connecting nozzle is placed in front of the stone, and the first airbag and the first inflatable connecting tube are used to fill the gas into the first inflatable connecting nozzle so that the first inflatable connecting nozzle is inflated and expands to block the bile duct to make it sealed, and then the second inflatable component is used to drive the abutment component to rotate and tilt so that its top wall contacts the inner wall of the bile duct, and the stone removal tube is pulled to automatically drive the stone to move inside the bile duct until it is separated from the bile duct during the movement, so that the bile duct can be sealed during the stone cleaning process, and bile can be prevented from overflowing from the abdominal cavity during the operation as much as possible, which can reduce the risk of intraoperative contamination of the abdominal cavity;

[0024] Second, during the stone removal process, normal saline is injected into the inner cavity of the stone removal tube using an injection tube and sprayed onto the inner wall of the bile duct through multiple sets of through holes, thereby automatically removing small stones under the flushing of normal saline and helping to move large stones. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic diagram of the front view of the utility model Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the front view of the utility model Figure 2 ;

[0028] Figure 3 It is a front view and cross-sectional structural schematic diagram of the stone removing mechanism of the utility model.

[0029] Explanation of the reference numerals: 100, sealing mechanism; 101, guide head; 102, guide tube; 103, first inflation component; 1031, first inflation connection nozzle; 1032, first inflation connection tube; 1033, first air bag; 200, stone removal mechanism; 201, abutment component; 2011, abutment frame; 2012, spring; 2013, abutment block; 202, sight glass component; 2021, choledochoscope; 2022, connecting wire; 203, injection tube; 204, stone removal tube; 2041, through hole; 205, second inflation component; 2051, second inflation connection nozzle; 2052, second inflation connection tube; 2053, second air bag. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 The utility model is described in further detail.

[0031] Example 1, please refer to the attached figure in the specification Figure 1 and 2 A laparoscopic biliary sealed lithotripter, comprising a sealing mechanism 100, which comprises a guide tube 102, a first inflatable component 103 is installed on the guide tube 102, the first inflatable component 103 comprises a first inflatable connecting nozzle 1031, the first inflatable connecting nozzle 1031 is fixedly sleeved at the end position of the outer wall of the guide tube 102, the lateral longitudinal section of the first inflatable connecting nozzle 1031 is set to be annular, the inner wall of the first inflatable connecting nozzle 1031 is connected to a first inflatable connecting tube 1032 that penetrates the outer wall of the guide tube 102, and the end position of the first inflatable connecting tube 1032 is installed with a first airbag 1033;

[0032] Please refer to the attached figure in the instruction manual Figure 1 and 3 The stone removing mechanism 200 comprises a stone removing tube 204, which is sleeved on the outer wall of the guide tube 102, and a plurality of abutment components 201 are hinged at the end of the outer wall of the stone removing tube 204 through a hinge shaft, and the abutment component 201 comprises an abutment frame 2011, which is hinged on the outer wall of the stone removing tube 204 through a hinge shaft, and the abutment frame 2011 is arranged on a side close to the first inflation connection nozzle 1031, and a spring 2012 connected to the outer wall of the stone removing tube 204 is fixed on the inner wall of the abutment frame 2011, and a plurality of abutment blocks 2013 are evenly fixed on the outer wall of the abutment frame 2011.

[0033] Please refer to the attached figure in the instruction manual Figure 1 and 3A second inflatable component 205 is installed on the outer wall of the stone removal tube 204, and the second inflatable component 205 includes a second airbag 2053. The second airbag 2053 is fixedly sleeved on the end position of the outer wall of the stone removal tube 204, and the second airbag 2053 is arranged in the inner cavity of the abutment frame 2011. The lateral longitudinal section of the second airbag 2053 is arranged to be ring-shaped, and the inner wall of the second airbag 2053 is connected to a second inflatable connecting tube 2052 that passes through the outer wall of the stone removal tube 204, and a second inflatable connecting nozzle 2051 is installed at the end position of the second inflatable connecting tube 2052.

[0034] The specific working principle is: put the laparoscopic biliary sealed lithotripter into the opened bile duct, and place the first inflatable connecting nozzle 1031 in front of the stone, use the first airbag 1033 and the first inflatable connecting tube 1032 to fill the first inflatable connecting nozzle 1031 with gas so that the first inflatable connecting nozzle 1031 is inflated and expands to block the bile duct, making it sealed, and then use the second inflatable connecting nozzle 2051 and the second inflatable connecting tube 2052 to fill the second airbag 2053 with gas so that the second airbag 2053 is inflated and expands. The abutment frame 2011 is driven to rotate and tilt through the hinge axis so that its top wall contacts the inner wall of the bile duct. The position of the abutment frame 2011 can be stabilized under the traction of the spring 2012, and then the stone removal tube 204 is pulled to slide outward on the outer wall of the guide tube 102, so that the multiple groups of abutment components 201 automatically drive the stones to move inside the bile duct until they are separated from the bile duct during the movement, so that the bile duct can be sealed during the stone cleaning process, bile can be prevented from overflowing from the abdominal cavity during the operation as much as possible, and the risk of intraoperative contamination of the abdominal cavity can be reduced.

[0035] Example 2, please refer to the attached figure in the specification Figure 3 A laparoscopic biliary sealed lithotripter includes a plurality of mirror assemblies 202 mounted on the outer wall of a lithotripter tube 204. The mirror assembly 202 includes a choledochoscopic scope 2021, which is fixed obliquely on the outer wall of the lithotripter tube 204, and a connecting wire 2022 penetrating the outer wall of the lithotripter tube 204 is connected to the end of the choledochoscopic scope 2021.

[0036] The specific working principle is: with the help of the choledochoscope 2021 and the connecting wire 2022, medical personnel can check the location of stones in the bile duct and the condition of the inner wall of the bile duct.

[0037] Example 3, please refer to the attached figure in the specification Figure 3 A laparoscopic biliary sealed lithotripter also includes: a plurality of groups of through holes 2041 are evenly opened on the outer wall of one side of the stone removal tube 204, and the plurality of groups of through holes 2041 are arranged at a position between the abutment frame 2011 and the choledochoscope 2021; the end of the other side of the stone removal tube 204 is connected to an injection tube 203, and the injection tube 203 is arranged on a side away from the first inflation connection nozzle 1031.

[0038] The specific working principle is: using the injection tube 203 to inject physiological saline into the inner cavity of the stone removal tube 204 and spray it onto the inner wall of the bile duct through multiple groups of through holes 2041, small-volume stones can be automatically removed under the flushing of physiological saline, and large-volume stones can be helped to move.

[0039] Example 4, please refer to the attached figure in the specification Figure 2 A laparoscopic biliary sealed lithotripter also includes a guide head 101 fixed to the end of a guide tube 102, and the guide head 101 is arranged at one end close to a first inflation connection nozzle 1031.

[0040] The specific working principle is: under the action of the guide head 101, the guide tube 102 is conveniently guided.

[0041] The standard parts used in the present utility model document can all be purchased from the market. The various components in the present utility model document can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A laparoscopic biliary sealed lithotripter, characterized in that: include, A sealing mechanism (100) comprising a guide tube (102), wherein a first inflation component (103) penetrating an outer wall of the guide tube (102) is mounted on the guide tube (102); The stone removal mechanism (200) comprises a stone removal tube (204), the stone removal tube (204) being sleeved on the outer wall of the guide tube (102), the outer wall end of the stone removal tube (204) being hingedly connected to a plurality of abutment components (201) via a hinge shaft, and the outer wall of the stone removal tube (204) being provided with a second inflatable component (205) penetrating the outer wall of the stone removal tube (204).

2. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: The first inflation component (103) comprises a first inflation connection nozzle (1031), the first inflation connection nozzle (1031) being fixedly sleeved on the end position of the outer wall of the guide tube (102), the inner wall of the first inflation connection nozzle (1031) being connected to a first inflation connection tube (1032) penetrating the outer wall of the guide tube (102), and a first airbag (1033) being installed at the end position of the first inflation connection tube (1032).

3. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: The abutment assembly (201) comprises an abutment frame (2011), the abutment frame (2011) being hinged to the outer wall of the stone removal tube (204) via a hinge shaft, a spring (2012) connected to the outer wall of the stone removal tube (204) being fixed to the inner wall of the abutment frame (2011), and a plurality of groups of abutment blocks (2013) being evenly fixed to the outer wall of the abutment frame (2011).

4. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: The second inflatable component (205) comprises a second air bag (2053), the second air bag (2053) being fixedly sleeved on the end position of the outer wall of the stone removal tube (204), the inner wall of the second air bag (2053) being connected to a second inflatable connecting tube (2052) penetrating the outer wall of the stone removal tube (204), and the end position of the second inflatable connecting tube (2052) being installed with a second inflatable connecting nozzle (2051).

5. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: The outer wall of the stone removal tube (204) is equipped with multiple sets of mirror assemblies (202).

6. The laparoscopic biliary sealed lithotripter according to claim 5, characterized in that: The viewing mirror assembly (202) comprises a choledochoscopic scope (2021), wherein the choledochoscopic scope (2021) is fixed at an angle on the outer wall of the lithotripsy tube (204), and the end of the choledochoscopic scope (2021) is connected to a connecting wire (2022) that passes through the outer wall of the lithotripsy tube (204).

7. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: The outer wall of one side of the stone removal tube (204) is evenly provided with a plurality of groups of through holes (2041), and the end of the other side of the stone removal tube (204) is connected to a liquid injection tube (203).

8. The laparoscopic biliary sealed lithotripter according to claim 1, characterized in that: A guide head (101) is fixed to the end of the guide tube (102).

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