Biliary tract calculus removal mesh basket with supporting effect

Abstract

The utility model relates to the field of medical instruments, and discloses a biliary tract calculus removal mesh basket with a supporting effect, which comprises a supporting tube, the right end of the supporting tube is fixedly connected with an outer sleeve, the inner wall of the outer sleeve is inserted with a pushing tube, the left end of the pushing tube is fixedly connected with a pushing handle, the left end of the pushing tube is provided with a calculus removal basket, and the left end of the pushing handle is provided with a handle. A supporting mechanism is arranged on the outer wall of the pushing pipe and comprises a supporting assembly and a limiting assembly, the supporting assembly comprises a containing groove, the containing groove is formed in the outer wall of the pushing pipe, an elastic piece is fixedly connected to the inner wall of the containing groove, a sliding groove is formed in the inner wall of the outer sleeve, and the elastic piece slides on the inner wall of the sliding groove. According to the utility model, through the arrangement of the supporting assembly, after the stone taking basket is unfolded, the elastic sheet can be driven to leave the interior of the outer sleeve by continuously pushing the push handle, so that the elastic sheet can rotate to be in an inclined state under the action of elastic deformation of the elastic sheet, and the inner wall of an enteric cavity can be supported through the elastic sheet.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a bile duct stone removal basket with a supporting effect. Background Technology

[0002] Stone retrieval baskets are a common medical device mainly used to remove stones from natural cavities of the human body, such as the intestines and urinary tract. For some smaller stones, it is difficult to directly bind them with a basket during removal. Therefore, water is first injected into the patient's body to fill the bile duct with water. Then, an endoscope is used to aspirate the water. During the water aspiration process, the basket is placed at the bile duct outlet to intercept and collect the stones. This method can remove multiple small stones at once.

[0003] When using an endoscope to aspirate water, the lack of support inside the intestinal lumen causes the negative pressure generated by the endoscope's suction to close the intestinal opening. This makes it impossible to guide the stone's movement through suction, often requiring multiple suctions and water injections to complete the removal operation, which is quite inconvenient. To address this issue, a bile duct stone retrieval basket with a supporting effect is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a bile duct stone removal basket with a supporting effect, which aims to improve the problem in the prior art that "the method of removing stones by aspirating water will cause the intestinal lumen to close during actual operation, thus making it impossible to complete the aspiration normally".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a bile duct stone retrieval basket with a supporting effect, comprising a support tube, an outer tube fixedly connected to the right end of the support tube, a push tube inserted into the inner wall of the outer tube, a push handle fixedly connected to the left end of the push tube, a stone retrieval basket installed at the left end of the push tube, a support mechanism provided on the outer wall of the push tube, the support mechanism comprising a support component and a limiting component, the support component comprising a storage groove, the storage groove being disposed on the outer wall of the push tube, a spring piece fixedly connected to the inner wall of the storage groove, a sliding groove provided on the inner wall of the outer tube, the spring piece sliding on the inner wall of the sliding groove, a limiting sleeve fixedly connected to the right end of the inner wall of the storage groove near the spring piece, and a storage sleeve fixedly connected to the left end of the inner wall of the storage groove near the spring piece, the left end of the spring piece being inserted into the inner wall of the storage sleeve.

[0006] As a further description of the above technical solution:

[0007] The push handle is a fin-shaped hollow assembly.

[0008] As a further description of the above technical solution:

[0009] The storage slot, spring, limiting sleeve, and storage sleeve are provided in multiple sets, and the multiple sets of storage slot, spring, limiting sleeve, and storage sleeve are arranged in a rotating array with the center line of the push tube as the rotation axis.

[0010] As a further description of the above technical solution:

[0011] The limiting component includes a blocking sleeve, the right surface of which is fixedly connected to the left surface of the support tube, and the blocking sleeve is a hollow cylindrical structure with an internal hollow structure.

[0012] As a further description of the above technical solution:

[0013] A fixed ring is fixedly connected to the outer wall of the push tube, and a rotating sleeve is rotatably connected to the outer wall of the fixed ring. The outer diameter of the rotating sleeve is the same as the inner diameter of the blocking sleeve.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the rotating sleeve is fixedly connected to a plug, and the outer wall of the blocking sleeve is provided with a slot, wherein the plug and the slot are adapted to each other.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting a support component, after the stone retrieval basket is unfolded, the push handle can be pushed to drive the spring piece away from the inside of the outer tube. In this way, the spring piece will rotate into an inclined state under its own elastic deformation. The spring piece can provide simple support for the inner wall of the intestinal cavity, which can prevent the intestinal cavity from closing and improve the working efficiency of suction operation.

[0018] 2. In this utility model, by setting a limiting component, when the push handle is pushed to move the push tube, when it is necessary to push out the spring piece, the rotating sleeve needs to be rotated first to align the insert block with the slot before the push tube can be pushed further. This can prevent the spring piece from accidentally coming out due to operator error, and the overall device has good safety when in use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional view of the outer sleeve in this utility model;

[0021] Figure 3 This is a three-dimensional structural disassembly diagram of the support component in this utility model;

[0022] Figure 4 In this utility model Figure 1 Enlarged schematic diagram of the three-dimensional structure of part A.

[0023] Legend:

[0024] 1. Support tube; 2. Outer tube; 3. Push tube; 4. Push handle; 5. Stone retrieval basket; 6. Support mechanism; 61. Slide groove; 62. Storage slot; 63. Spring piece; 64. Limiting sleeve; 65. Storage sleeve; 66. Blocking sleeve; 67. Slot; 68. Fixing ring; 69. Rotating sleeve; 610. Insert block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a bile duct stone retrieval basket with a supporting effect, including a support tube 1 for supporting the overall device, an outer tube 2 for supporting the movement of a push tube 3 fixedly connected to the right end of the support tube 1, a push tube 3 for driving the stone retrieval basket 5 inserted into the inner wall of the outer tube 2, a push handle 4 for facilitating the operator to push the push tube 3 fixedly connected to the left end of the push tube 3, a stone retrieval basket 5 for blocking stones installed at the left end of the push tube 3, and a support mechanism 6 for supporting the inner wall of the intestinal lumen provided on the outer wall of the push tube 3. The support mechanism 6 includes a support component and a limiting component. The support component includes a storage groove 62 for accommodating a spring piece 63. 62 is set on the outer wall of the push tube 3. The inner wall of the storage groove 62 is fixedly connected to a spring piece 63 for supporting the intestinal lumen. The spring piece 63 is made of metal and has good elastic deformation ability. When its outer wall is unrestricted, it will naturally rotate outward to a tilted state. The inner wall of the outer tube 2 is provided with a sliding groove 61 for accommodating the spring piece 63. The spring piece 63 slides on the inner wall of the sliding groove 61. The inner wall of the storage groove 62 is fixedly connected to the right end of the spring piece 63 to protect the bent part of the spring piece 63. The inner wall of the storage groove 62 is fixedly connected to the left end of the spring piece 63 to support the head of the spring piece 63. The left end of the spring piece 63 is inserted into the inner wall of the storage sleeve 65.

[0027] Reference Figure 1 - Figure 3The push handle 4 is a fin-shaped hollow kit. By setting the push handle 4, the bending part of the spring piece 63 can be protected, thus preventing the spring piece 63 from being damaged when it moves on the inner wall of the outer tube 2. There are multiple sets of storage slots 62, spring pieces 63, limiting sleeves 64, and storage sleeves 65. The multiple sets of storage slots 62, spring pieces 63, limiting sleeves 64, and storage sleeves 65 are arranged in a rotating array with the center line of the push tube 3 as the rotation axis. Using multiple sets of spring pieces 63 can form multi-point support, so that the support operation can be completed without obstructing the operator's observation. The limiting component includes a blocking sleeve 66 used to block the movement of the insert block 610. The right surface of the blocking sleeve 66 is fixedly connected to the left surface of the support tube 1. The blocking sleeve 66 is a hollow cylindrical structure with a hollow interior.

[0028] Reference Figure 1 - Figure 3 The outer wall of the push tube 3 is fixedly connected to a fixed ring 68 for supporting the rotation of the rotating sleeve 69. The outer wall of the fixed ring 68 is rotatably connected to a rotating sleeve 69 for driving the insertion block 610 to move. The outer diameter of the rotating sleeve 69 is the same as the inner diameter of the blocking sleeve 66. The rotating sleeve 69 can be inserted into the interior of the blocking sleeve 66. The outer wall of the rotating sleeve 69 is fixedly connected to an insertion block 610. The outer wall of the blocking sleeve 66 is provided with a slot 67 for accommodating the insertion block 610. The insertion block 610 and the slot 67 are compatible. Only when the insertion block 610 is aligned with the slot 67 can the rotating sleeve 69 enter the interior of the blocking sleeve 66. In this way, the push tube 3 can drive the spring piece 63 to disengage from the interior of the outer tube 2.

[0029] Working principle: When suction is required, push the handle 4 to slide the push tube 3 on the inner wall of the outer tube 2. The movement of the push tube 3 will cause the stone retrieval basket 5 to leave the inside of the outer tube 2. The stone retrieval basket 5 will then return to its original position under its own elasticity. At this time, the stone retrieval basket 5 can be inserted into the intestinal lumen. At this time, the right surface of the insertion block 610 will be blocked by the blocking sleeve 66. The operator needs to rotate the rotating sleeve 69 to align the insertion block 610 with the slot 67. Then, continue to push the handle 4 to drive the spring piece 63 out of the inside of the outer tube 2. At this time, the spring piece 63 will also rotate and tilt under its own elastic deformation. Then, the spring piece 63 can be blocked on the inner wall of the intestinal lumen. In this way, the spring piece 63 can play a supporting role during suction and prevent the intestinal lumen from closing during the suction process.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gallstone extraction basket with a supporting effect, comprising a support tube (1), characterized in that: The right end of the supporting pipe (1) is fixedly connected with an outer sleeve (2), the inner wall of the outer sleeve (2) is inserted with a pushing pipe (3), the left end of the pushing pipe (3) is fixedly connected with a pushing handle (4), the left end of the pushing pipe (3) is installed with a stone basket (5), the outer wall of the pushing pipe (3) is provided with a supporting mechanism (6), the supporting mechanism (6) comprises a supporting assembly and a limiting assembly, the supporting assembly comprises a receiving groove (62), the receiving groove (62) is arranged on the outer wall of the pushing pipe (3), the inner wall of the receiving groove (62) is fixedly connected with an elastic sheet (63), the inner wall of the outer sleeve (2) is provided with a sliding groove (61), the elastic sheet (63) slides on the inner wall of the sliding groove (61), the inner wall of the receiving groove (62) is fixedly connected with a limiting sleeve (64) near the right end of the elastic sheet (63), the inner wall of the receiving groove (62) is fixedly connected with a receiving sleeve (65) near the left end of the elastic sheet (63), the left end of the elastic sheet (63) is inserted into the inner wall of the receiving sleeve (65).

2. The gallstone extraction basket with supporting effect according to claim 1, characterized in that: The pushing handle (4) is a fin-shaped hollow sleeve.

3. The gallstone basket according to claim 1, wherein: The receiving groove (62), the elastic sheet (63), the limiting sleeve (64) and the receiving sleeve (65) are provided with a plurality of groups, and the plurality of groups of the receiving groove (62), the elastic sheet (63), the limiting sleeve (64) and the receiving sleeve (65) are rotationally arranged with the center line of the pushing pipe (3) as the rotation axis.

4. The gallstone basket according to claim 1, wherein: The limiting assembly comprises a blocking sleeve (66), the right surface of the blocking sleeve (66) is fixedly connected to the left surface of the supporting pipe (1), and the blocking sleeve (66) is a hollow cylindrical structure.

5. The gallstone extraction basket with supporting effect according to claim 4, characterized in that: The outer wall of the pushing pipe (3) is fixedly connected with a fixed ring (68), the outer wall of the fixed ring (68) is rotatably connected with a rotating sleeve (69), and the outer diameter of the rotating sleeve (69) is the same as the inner diameter of the blocking sleeve (66).

6. The gallstone extraction basket with supporting effect according to claim 5, characterized in that: The outer wall of the rotating sleeve (69) is fixedly connected with an insertion block (610), the outer wall of the blocking sleeve (66) is provided with an insertion slot (67), and the insertion block (610) and the insertion slot (67) are matched.

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