A device for treating intrahepatic bile duct stones
By designing a treatment device for intrahepatic bile duct stones including fixed and movable net baskets, combined with the coordination of the movable rod and the rotating rod, the problem of insufficient flexibility in traditional devices when dealing with stones of different sizes is solved, and a more efficient stone extraction process is achieved.
Patent Information
- Application Number
- CN202510177901.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-04-01
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional intrahepatic bile duct stone treatment devices are not flexible enough when dealing with stones of different sizes, making it difficult to adapt to the needs of different sizes of stone extraction, which increases the difficulty of surgery.
A device including a fixed net basket and a movable net basket is designed. Through the cooperation of the movable rod and the rotating rod, the movable net basket can be expanded to fix larger gravels, and through the cooperation of springs and blocks, the stable fixation of the net basket is ensured and the efficiency of stone extraction is improved.
By setting up fixed and movable net baskets, it can flexibly adapt to stones of different sizes, reduce the risk of gravel falling off, and improve the flexibility and efficiency of surgery.
Smart Images
Figure CN119732722A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical devices, and in particular to a device for treating intrahepatic bile duct stones. Background Art
[0002] Bile duct stones are a type of clinical cholelithiasis. According to the location of the stones, they are divided into extrahepatic bile duct stones and intrahepatic bile duct stones. Stones located at the lower end of the common bile duct are called extrahepatic bile duct stones, while stones distributed in the bile ducts within the liver lobes are called intrahepatic bile duct stones. Intrahepatic bile duct stones are one of the common diseases in the hepatobiliary department. The most effective way to treat intrahepatic bile duct stones is to make an incision through surgery and use a special stone remover to perform the operation.
[0003] When removing larger stones, the traditional stone removal basket is prone to stones falling off, which increases the difficulty of the operation. The existing technology is not flexible enough when dealing with stones of different sizes, and it is difficult to adapt to the needs of stone removal of different sizes.
[0004] For this reason, we propose a device for treating intrahepatic bile duct stones. Summary of the invention
[0005] In view of the deficiencies of the prior art, the present invention provides a device for treating intrahepatic bile duct stones, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for treating intrahepatic bile duct stones, comprising a cylinder, a connecting block is arranged on the top of the cylinder, a movable rod is arranged on the top of the connecting block, a bottom plate is arranged on the bottom of the cylinder, an extension cylinder is fixedly installed on the bottom of the bottom plate, an opening is opened at the bottom of the extension cylinder, baffles are rotatably arranged on both sides of the opening, a fixed column is slidably arranged inside the extension cylinder, fixed sleeves are arranged at both ends of the fixed column, a plurality of fixed net baskets are fixedly arranged on the fixed sleeve, a rotating column is arranged between the two fixed sleeves, and a movable net basket is fixedly arranged on the rotating column.
[0007] In a preferred example, the present invention can be further configured as follows: a connecting rod is provided inside the movable rod, a rotating rod is provided inside the connecting rod, the bottom of the rotating rod extends to the inside of the extension tube and is fixedly connected to the rotating column, and the top of the rotating rod extends to the top of the movable rod and a handle is provided above it.
[0008] In a preferred example, the present invention can be further configured as follows: a sleeve is provided on the middle part of the connecting rod, grooves are provided on both sides of the inner wall of the cylinder, a first spring is provided inside the groove, a clamping block is fixedly connected to the end of the first spring, a push rod is provided on the side of the clamping block close to the first spring, and the push rod extends to the outside of the cylinder.
[0009] In a preferred example, the present invention can be further configured as follows: a partition is further provided inside the cylinder, and a through hole is opened in the middle of the partition corresponding to the connecting rod.
[0010] In a preferred example, the present invention can be further configured as follows: a second spring is disposed on the upper surface of the partition, and a top end of the second spring is disposed in contact with the casing.
[0011] In a preferred example, the present invention can be further configured as follows: both ends of the sleeve are arranged to protrude outward, and one end of the block away from the first spring is arranged to abut against the sleeve.
[0012] Beneficial effects of the present invention: The present invention provides a fixed net basket and a movable net basket, and drives the rotating column to rotate by rotating the rotating rod in the movable rod, so that the movable net basket fixedly connected to the rotating column is unfolded, which is convenient for fixing the gravel entering the fixed net basket, and the movable net basket is used for auxiliary fixing, so as to facilitate the stone removal; Through the arrangement of the clamping block and the spring, when the sleeve shell moves to below the clamping block, the sleeve shell is clamped by the clamping block, which is convenient for fixing the fixed net basket and the movable net basket and is convenient for better grasping of stones. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 For the present invention Figure 1 Schematic diagram of the structure at A in the middle; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point B in the middle.
[0014] In the figure: 1. cylinder; 2. movable rod; 3. connecting block; 4. bottom plate; 5. extension cylinder; 6. baffle; 7. first spring; 8. fixed column; 9. fixed net basket; 10. movable net basket; 11. fixed sleeve; 12. rotating column; 13. block; 14. rotating rod; 15. connecting rod; 16. sleeve; 17. partition; 18. push rod; 19. groove; 20. second spring. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] In the embodiment See also Figure 1-Figure 4 A device for treating intrahepatic bile duct stones comprises a cylinder 1, a connecting block 3 is arranged on the top of the cylinder 1, a movable rod 2 is arranged on the top of the connecting block 3, a bottom plate 4 is arranged on the bottom of the cylinder 1, an extension cylinder 5 is fixedly installed on the bottom of the bottom plate 4, an opening is opened at the bottom of the extension cylinder 5, baffles 6 are rotatably arranged on both sides of the opening, a fixed column 8 is slidably arranged inside the extension cylinder 5, fixed sleeves 11 are arranged at both ends of the fixed column 8, a plurality of fixed net baskets 9 are fixedly arranged on the fixed sleeve 11, a rotating column 12 is arranged between the two fixed sleeves 11, and a movable net basket 10 is fixedly arranged on the rotating column 12.
[0017] A connecting rod 15 is provided inside the movable rod 2, and a rotating rod 14 is provided inside the connecting rod 15. The bottom of the rotating rod 14 extends to the inside of the extension tube 5 and is fixedly connected to the rotating column 12. The top of the rotating rod 14 extends to the top of the movable rod 2 and a handle is provided above it.
[0018] A sleeve 16 is sleeved on the middle part of the connecting rod 15, grooves 19 are opened on both sides of the inner wall of the cylinder 1, a first spring 7 is arranged inside the groove 19, a clamping block 13 is fixedly connected to the end of the first spring 7, a push rod 18 is arranged on the side of the clamping block 13 close to the first spring 7, and the push rod 18 extends to the outside of the cylinder 1.
[0019] A partition 17 is also provided inside the cylinder 1, and a through hole is provided in the middle of the partition 17 corresponding to the connecting rod 15. A second spring 20 is provided on the upper surface of the partition 17, and the top end of the second spring 20 is disposed in contact with the sleeve 16.
[0020] Both ends of the sleeve 16 are convex outwards, and one end of the clamping block 13 away from the first spring 7 is in contact with the sleeve 16 .
[0021] Working principle: When the device is in use, the puncture site is positioned through the external positioning component. After the puncture and lithotripsy, the medical staff holds the device in their hands and presses the movable rod 2 to drive the connecting rod 15 to move downward, so that the fixed column 8 to which the connecting rod 15 is fixedly connected moves downward, and moves to the vicinity of the gravel through the fixed net basket 9. By rotating the rotating rod 14, the movable net basket 10 is driven to rotate, so that larger gravel can be grabbed to prevent the gravel from falling off. Through the action of the clamping block 13 and the first spring 7, the clamping block 13 is driven to clamp the shell 16, and then the shell 16 is limited, so as to better fix and clamp the gravel.
[0022] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A device for treating intrahepatic bile duct stones, characterized in that: The invention comprises a cylinder (1), a connecting block (3) is arranged at the top of the cylinder (1), a movable rod (2) is arranged at the top of the connecting block (3), a bottom plate (4) is arranged at the bottom of the cylinder (1), an extension cylinder (5) is fixedly mounted at the bottom of the bottom plate (4), an opening is opened at the bottom of the extension cylinder (5), baffles (6) are rotatably arranged on both sides of the opening, a fixed column (8) is slidably arranged inside the extension cylinder (5), a fixed sleeve (11) is arranged at both ends of the fixed column (8), a plurality of fixed net baskets (9) are fixedly arranged on the fixed sleeve (11), a rotating column (12) is arranged between the two fixed sleeves (11), and a movable net basket (10) is fixedly arranged on the rotating column (12).
2. A device for treating intrahepatic bile duct stones according to claim 1, characterized in that: A connecting rod (15) is provided inside the movable rod (2), a rotating rod (14) is provided inside the connecting rod (15), the bottom of the rotating rod (14) extends to the inside of the extension tube (5) and is fixedly connected to the rotating column (12), and the top of the rotating rod (14) extends to the top of the movable rod (2) and a handle is provided above it.
3. A device for treating intrahepatic bile duct stones according to claim 2, characterized in that: A sleeve (16) is sleeved on the middle part of the connecting rod (15), grooves (19) are provided on both sides of the inner wall of the cylinder (1), a first spring (7) is provided inside the groove (19), a clamping block (13) is fixedly connected to the end of the first spring (7), a push rod (18) is provided on the side of the clamping block (13) close to the first spring (7), and the push rod (18) extends to the outside of the cylinder (1).
4. A device for treating intrahepatic bile duct stones according to claim 3, characterized in that: A partition plate (17) is further provided inside the cylinder (1), and a through hole is provided in the middle of the partition plate (17) corresponding to the connecting rod (15).
5. The device for treating intrahepatic bile duct stones according to claim 4, characterized in that: A second spring (20) is arranged on the upper surface of the partition plate (17), and the top end of the second spring (20) is arranged to abut against the sleeve (16).
6. The device for treating intrahepatic bile duct stones according to claim 3, characterized in that: Both ends of the sleeve (16) are arranged to protrude outwards, and one end of the clamping block (13) away from the first spring (7) is arranged to abut against the sleeve (16).