Gallstone extractor for laparoscope

Abstract

The utility model relates to the technical field of medical equipment, in particular to a gallstone extractor for a laparoscope, which comprises a supporting sleeve, a movable handle is fixedly mounted at the bottom of the supporting sleeve, a stone extracting barrel is movably mounted at one end of the supporting sleeve, a movable rod penetrates through the inside of the stone extracting barrel, a stone extracting component is fixedly mounted at the top end of the stone extracting barrel, and the stone extracting component comprises a fixed sleeve. The fixing sleeves are symmetrically installed on the upper surfaces of the bottoms of the fixing sleeves, an arc-shaped rod is movably installed between the fixing sleeves, a calculus removing cover is fixedly installed on the inner wall of the arc-shaped rod, a gear sleeve is arranged at the top end of the arc-shaped rod, the gear sleeve and the supporting plate are movably installed, and telescopic assemblies are movably installed in the fixing sleeves. The telescopic assembly comprises a clamping block, a tension spring and a straight tooth cylinder, the two ends of the tension spring are fixedly installed between the clamping block and the straight tooth cylinder, and the straight tooth cylinder is meshed with the gear sleeve. By opening and closing the calculus removing cover, gallstone can be quickly and accurately clamped, the operation time is shortened, the pain of a patient is reduced, and the gallbladder function is protected.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a laparoscopic gallstone removal device. Background Technology

[0002] Gallstones are a common clinical disease and a type of cholelithiasis. They are mostly cholesterol stones or mixed stones with cholesterol as the main component and melanin stones. In clinical medicine, laparoscopic biliary surgery is often used to treat gallstones. During laparoscopic surgery, stone retrieval instruments are often used to remove the stones from the gallbladder.

[0003] When using existing gallbladder stone removal devices, medical staff usually manually grasp the stones to remove them. However, the clamping area is relatively small, causing the stones to slip off the device. Small stones falling into the gallbladder can lead to complications. The repetitive grasping action also increases the operation time and causes more pain for the patient. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A laparoscopic gallbladder stone retrieval device includes a support sleeve, a movable handle fixedly installed at the bottom of the support sleeve, the movable handle including a movable rod, a stone retrieval tube movably installed at one end of the support sleeve, the movable rod passing through the interior of the stone retrieval tube, a stone retrieval assembly fixedly installed at the top of the stone retrieval tube, the stone retrieval assembly including a fixed sleeve, the fixed sleeves being symmetrically installed on the bottom upper surface of the fixed sleeves, an arc-shaped rod movably installed between the fixed sleeves, a stone retrieval cover fixedly installed on the inner wall of the arc-shaped rod, a gear sleeve provided at the top of the arc-shaped rod, the gear sleeve being movably installed with a support plate, a telescopic assembly movably installed inside the fixed sleeve, the telescopic assembly including a locking block, a tension spring and a straight-tooth cylinder, the locking block being fixedly connected to the movable rod, the two ends of the tension spring being fixedly installed between the locking block and the straight-tooth cylinder, the straight-tooth cylinder meshing with the gear sleeve.

[0006] As an improvement to the above technical solution, a movable handle is fixedly installed at the bottom of the support sleeve. The movable handle includes a fixed rod, which is fixedly installed on the lower bottom surface of the support sleeve. An adjustment handle is rotatably installed on one side of the fixed rod, and the top end of the adjustment handle is fixedly connected to the movable rod.

[0007] As an improvement to the above technical solution, the support plate is symmetrically fixedly connected to the surface of the fixed sleeve, and a second rotating shaft is provided on the top of the support plate, and the gear sleeve is rotatably connected to the second rotating shaft.

[0008] As an improvement to the above technical solution, the tension spring and the straight toothed cylinder are movably installed inside the fixed sleeve, and the locking block is fixedly installed on the top of the stone-collecting cylinder.

[0009] As an improvement to the above technical solution, one end of the fixing rod is fixedly installed on the surface of the support sleeve, the other end of the fixing rod is provided with a fixing shaft, one end of the adjusting handle is provided with a movable sleeve, the movable sleeve is fitted onto the upper part of the fixing shaft, a finger groove is provided on one side of the adjusting handle, and a first rotating shaft is provided at the top of the movable rod, the first rotating shaft being fixedly connected to the movable rod.

[0010] The beneficial effects of this utility model are:

[0011] 1. The movable handle of this utility model, through the transmission of a movable rod, a locking block, a tension spring, and a straight-tooth cylinder, causes the arc-shaped rod to rotate in the opposite direction. The arc-shaped rod drives the stone retrieval cover to close, encasing the stone inside. The stone, along with the stone retrieval cover, is then removed from the abdominal cavity through the stone retrieval tube. The stone retrieval tube and stone retrieval device are cleaned and disinfected, and the patient's surgical site is observed to ensure there are no complications such as bleeding or infection. By opening and closing the stone retrieval cover, gallbladder stones can be quickly and accurately grasped, reducing surgical time and patient pain, protecting gallbladder function, and removing stones while preserving the gallbladder. This avoids complications associated with cholecystectomy, which is beneficial for postoperative recovery and quality of life. During the stone retrieval process, the stone retrieval cover can tightly wrap the stone, preventing it from slipping or breaking, reducing the risk and incidence of complications during the operation. The design of the stone retrieval device conforms to ergonomic principles, allowing medical staff to operate it easily, providing a higher quality surgical treatment option for patients with gallbladder stones.

[0012] 2. By rotating the adjustment handle, medical staff can precisely control the opening and closing speed of the stone removal cover, ensuring that the gallbladder or surrounding tissues will not be damaged during the stone removal process. Through the meshing relationship between the telescopic component and the straight tooth cylinder and gear sleeve, medical staff can precisely control the opening and closing degree of the stone removal cover, ensuring that the gallbladder or surrounding tissues will not be damaged during the stone removal process. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional view of the movable handle of this utility model;

[0015] Figure 3 This is a structural diagram of the stone extraction component of this utility model;

[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0017] Figure 5 This is a structural diagram of the arc-shaped rod of this utility model;

[0018] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0019] Figure 7 This is a cross-sectional view of the telescopic component of this utility model;

[0020] Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0021] Reference numerals: 1. Support sleeve; 2. Movable handle; 21. Fixed rod; 211. Fixed shaft; 22. Adjusting handle; 221. Movable sleeve; 222. Finger groove; 23. First rotating shaft; 24. Movable rod; 3. Stone retrieval cylinder; 4. Stone retrieval assembly; 41. Fixed sleeve; 42. Support plate; 421. Second rotating shaft; 43. Arc rod; 431. Gear sleeve; 44. Stone retrieval cover; 5. Telescopic assembly; 51. Locking block; 52. Tension spring; 53. Straight toothed cylinder. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0023] Please see Figure 1-8 This utility model provides a technical solution:

[0024] A laparoscopic gallbladder stone retrieval device includes a support sleeve 1. A movable handle 2 is fixedly installed at the bottom of the support sleeve 1. The movable handle 2 includes a movable rod 24. A stone retrieval tube 3 is movably installed at one end of the support sleeve 1. The movable rod 24 passes through the interior of the stone retrieval tube 3. A stone retrieval assembly 4 is fixedly installed at the top of the stone retrieval tube 3. The stone retrieval assembly 4 includes a fixed sleeve 41. The fixed sleeves 41 are symmetrically installed on the bottom upper surface of the fixed sleeves 41. An arc-shaped rod 43 is movably installed between the fixed sleeves 41. A stone-collecting cover 44 is fixedly installed on the inner wall of the arc-shaped rod 43. A gear sleeve 431 is provided at the top of the arc-shaped rod 43. The gear sleeve 431 is movably installed with the support plate 42. A telescopic component 5 is movably installed inside the fixed sleeve 41. The telescopic component 5 includes a locking block 51, a tension spring 52, and a straight toothed cylinder 53. The locking block 51 is fixedly connected to the movable rod 24. The two ends of the tension spring 52 are fixedly installed between the locking block 51 and the straight toothed cylinder 53. The straight toothed cylinder 53 meshes with the gear sleeve 431.

[0025] In this embodiment, the support sleeve 1 is fixedly mounted with the movable handle 2 and the stone-retrieving cylinder 3. The movable rod 24 is used to control the opening and closing of the stone-retrieving assembly 4. The stone-retrieving cylinder 3 is movably mounted on one end of the support sleeve 1, with the movable rod 24 passing through it, serving as a channel for the stone-retrieving cover 44 to enter the abdominal cavity. The fixed sleeves 41 of the stone-retrieving assembly 4 are symmetrically mounted on the bottom upper surface of the fixed sleeves 41 to fix the arc-shaped rod 43. The arc-shaped rod 43 is movably mounted between the fixed sleeves 41, and the stone-retrieving cover 44 is fixedly mounted on its inner wall. The stone-retrieving cover 44 is used to wrap and clamp gallbladder stones. The gear sleeve 431 is located at the top of the arc-shaped rod 43 and is movably mounted with the support plate 42 for transmitting power and telescopic components. The locking block 51 of component 5 is fixedly connected to the movable rod 24 and moves with the movable rod 24. The tension spring 52 is fixedly installed at both ends between the locking block 51 and the straight-tooth cylinder 53, providing a restoring force. The straight-tooth cylinder 53 meshes with the gear sleeve 431 to transmit the power of the movable handle 2 to the stone retrieval assembly 4. Usage procedure: Confirm the location and size of the patient's gallbladder stones, assemble the stone retrieval device, check that all parts are secure, and insert the stone retrieval tube 3 into the abdominal cavity through a laparoscope, close to the gallbladder stones. Stone retrieval operation: Hold the movable handle 2 and push the movable rod 24 forward. The movable rod 24 drives the locking block 51 to move, and the locking block 51 pulls the straight-tooth cylinder 53 through the tension spring 52. The spur gear cylinder 53 meshes with the gear sleeve 431, causing the arc-shaped rod 43 to rotate around the fixed sleeve 41. The rotation of the arc-shaped rod 43 gradually opens the stone-removing cover 44, enveloping the gallstone. Continuing to push the movable handle 2 causes the stone-removing cover 44 to tightly clamp the stone. After confirming the stone is firmly clamped, slowly pull the movable handle 2. Through the transmission of the movable rod 24, the locking block 51, the tension spring 52, and the spur gear cylinder 53, the movable handle 2 causes the arc-shaped rod 43 to rotate in the opposite direction. The arc-shaped rod 43 drives the stone-removing cover 44 to close, enveloping the stone. The stone, along with the stone-removing cover 44, is then removed from the abdominal cavity through the stone-removing tube 3. The stone-removing tube 3 and the stone-removing device are then cleaned and disinfected. The procedure involves observing the patient's surgical site to ensure there are no complications such as bleeding or infection. By opening and closing the stone retrieval cover 44, gallstones can be quickly and accurately removed, reducing surgical time and patient discomfort, protecting gallbladder function, and removing stones while preserving the gallbladder. This avoids complications associated with cholecystectomy, promoting postoperative recovery and quality of life for the patient. During stone retrieval, the stone retrieval cover 44 tightly wraps around the stones, preventing them from slipping or breaking, thus reducing the risks and incidence of complications during the procedure. The ergonomic design of the stone retrieval device allows for easy operation by medical staff, providing a superior surgical treatment option for patients with gallstones.

[0026] Specifically, a movable handle 2 is fixedly installed at the bottom of the support sleeve 1. The movable handle 2 includes a fixed rod 21, which is fixedly installed on the lower bottom surface of the support sleeve 1. An adjusting handle 22 is rotatably installed on one side of the fixed rod 21, and the top end of the adjusting handle 22 is fixedly connected to the movable rod 24.

[0027] In this embodiment, the fixed rod 21 of the movable handle 2 is fixedly installed on the bottom lower surface of the support sleeve 1, serving as the fixed part of the movable handle 2 and providing stable support. The adjusting handle 22 is rotatably installed on one side of the fixed rod 21, allowing medical personnel to control the movement of the movable rod 24 by squeezing and rotating the adjusting handle 22. The design of the adjusting handle 22 allows medical personnel to operate the stone retrieval device more flexibly and adapt to the needs of different surgical scenarios. The movable rod 24 is fixedly connected to the top of the adjusting handle 22. When the adjusting handle 22 rotates, the movable rod 24 will move accordingly. The movable rod 24 passes through the inside of the stone retrieval tube 3 and interacts with the telescopic component 5 of the stone retrieval assembly 4 to control the opening and closing of the stone retrieval cover 44. By rotating the adjusting handle 22, medical personnel can precisely control the opening and closing speed of the stone retrieval cover 44 to ensure that no damage is caused to the gallbladder or surrounding tissues during the stone retrieval process.

[0028] Specifically, the support plate 42 is symmetrically and fixedly connected to the surface of the fixed sleeve 41, and a second rotating shaft 421 is provided on the top of the support plate 42, and the gear sleeve 431 is rotatably connected to the second rotating shaft 421.

[0029] In this embodiment, the fixing sleeve 41 is symmetrically installed at the top of the stone-collecting cylinder 3, serving as the fixed part of the stone-collecting assembly 4 and providing support for the arc-shaped rod 43 and the support plate 42. The support plate 42 is symmetrically fixedly connected to the surface of the fixing sleeve 41 and is located below the arc-shaped rod 43. The design of the support plate 42 enhances the structural stability of the stone-collecting assembly 4 and provides a mounting base for the second rotating shaft 421 on it. The second rotating shaft 421 is located at the top of the support plate 42 and serves as the rotation center of the gear sleeve 431. The second rotating shaft 421 allows the gear sleeve 431 to move freely on the support plate 42. The rotation of the arc rod 43 and the opening and closing of the stone retrieval cover 44 are achieved. The gear sleeve 431 is rotatably connected to the second rotating shaft 421, allowing the arc rod 43 to rotate around the second rotating shaft 421. The stone retrieval cover 44 is fixedly installed on the inner wall of the arc rod 43 to wrap and clamp gallbladder stones. When the arc rod 43 rotates, the stone retrieval cover 44 opens or closes accordingly. Through the meshing relationship between the telescopic component 5 and the straight toothed cylinder 53 and the gear sleeve 431, medical staff can precisely control the opening and closing degree of the stone retrieval cover 44 to ensure that the gallbladder or surrounding tissues are not damaged during the stone retrieval process.

[0030] Specifically, the tension spring 52 and the straight toothed cylinder 53 are movably installed inside the fixed sleeve 41, and the locking block 51 is fixedly installed on the top of the stone-retrieving cylinder 3.

[0031] In this embodiment, the locking block 51 is fixedly installed on the top of the stone-retrieving cylinder 3, serving as the fixed part of the telescopic assembly 5. It is connected to the movable rod 24 and used to transmit power. It is movably installed inside the fixed sleeve 41 via a tension spring 52, with one end connected to the locking block 51 and the other end connected to the spur gear cylinder 53. The tension spring 52 provides a restoring force to ensure that the telescopic assembly 5 can return to its initial state after the power transmission is completed. The spur gear cylinder 53 is movably installed inside the fixed sleeve 41 and meshes with the gear sleeve 431. When the movable handle 2 is operated, the spur gear cylinder 53 drives the gear sleeve 431 and the arc rod 43 to rotate through the meshing relationship, thereby realizing the opening and closing of the stone-retrieving cover 44. The meshing relationship between the spur gear cylinder 53 and the gear sleeve 431 ensures the accuracy of the opening and closing of the stone-retrieving cover 44 and avoids unnecessary damage to the gallbladder or surrounding tissues during the stone retrieval process.

[0032] Specifically, one end of the fixed rod 21 is fixedly installed on the surface of the support sleeve 1, and the other end of the fixed rod 21 is provided with a fixed shaft 211. One end of the adjusting handle 22 is provided with a movable sleeve 221, which is fitted onto the upper part of the fixed shaft 211. A finger groove 222 is provided on one side of the adjusting handle 22, and a first rotating shaft 23 is provided at the top of the movable rod 24. The first rotating shaft 23 is fixedly connected to the movable rod 24.

[0033] In this embodiment, one end of the fixed rod 21 is firmly installed on the surface of the support sleeve 1 by welding. The movable sleeve 221 is fitted and tightly installed on the upper part of the fixed shaft 211, allowing the adjusting handle 22 to rotate freely around the fixed shaft 211. The connecting component first rotating shaft 23 is fixedly connected to the top end of the movable rod 24 by bolts, ensuring that when the adjusting handle 22 is rotated, the connecting component first rotating shaft 23 can stably drive the movable rod 24 to move. The movable rod 24 is connected to the locking block 51 of the telescopic component 5, thereby controlling the opening and closing of the stone retrieval cover 44. When the adjusting handle 22 rotates, the connecting component first rotating shaft 23 drives the movable rod 24 to move. The movement of the movable rod 24 triggers the locking block 51 and the straight tooth cylinder 53 in the telescopic component 5 through the transmission mechanism, ultimately causing the stone retrieval cover 44 to open or close. The rotation design of the adjusting handle 22 around the fixed shaft 211 and the ergonomic design of the finger groove 222 enable medical staff to easily and flexibly operate the movable handle 2, thereby controlling the opening and closing of the stone retrieval cover 44.

[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A laparoscopic gallbladder lithotriptor comprising a support sleeve (1), characterized in that: The bottom of the supporting sleeve (1) is fixedly provided with a movable handle (2), the movable handle (2) comprises a movable rod (24), one end of the supporting sleeve (1) is movably provided with a stone taking cylinder (3), the movable rod (24) penetrates through the inside of the stone taking cylinder (3), the top end of the stone taking cylinder (3) is fixedly provided with a stone taking assembly (4), the stone taking assembly (4) comprises a fixed sleeve (41), the fixed sleeve (41) is symmetrically arranged on the bottom upper surface of the fixed sleeve (41), the movable rod (24) is movably arranged between the fixed sleeve (41), the inner wall of the movable rod (24) is fixedly provided with a stone taking cover (44), the top end of the movable rod (24) is provided with a gear sleeve (431), the gear sleeve (431) is movably arranged with a supporting plate (42), the inside of the fixed sleeve (41) is movably provided with a telescopic assembly (5), the telescopic assembly (5) comprises a clamping block (51), a tension spring (52) and a straight toothed cylinder (53), the clamping block (51) is fixedly connected with the movable rod (24), the two ends of the tension spring (52) are fixedly arranged between the clamping block (51) and the straight toothed cylinder (53), and the straight toothed cylinder (53) is engaged with the gear sleeve (431).

2. The gall bladder stone extractor according to claim 1, wherein: The bottom of the supporting sleeve (1) is fixedly provided with a movable handle (2), the movable handle (2) comprises a movable rod (24), one end of the supporting sleeve (1) is movably provided with a stone taking cylinder (3), the movable rod (24) penetrates through the inside of the stone taking cylinder (3), the top end of the stone taking cylinder (3) is fixedly provided with a stone taking assembly (4), the stone taking assembly (4) comprises a fixed sleeve (41), the fixed sleeve (41) is symmetrically arranged on the bottom upper surface of the fixed sleeve (41), the movable rod (24) is movably arranged between the fixed sleeve (41), the inner wall of the movable rod (24) is fixedly provided with a stone taking cover (44), the top end of the movable rod (24) is provided with a gear sleeve (431), the gear sleeve (431) is movably arranged with a supporting plate (42), the inside of the fixed sleeve (41) is movably provided with a telescopic assembly (5), the telescopic assembly (5) comprises a clamping block (51), a tension spring (52) and a straight toothed cylinder (53), the clamping block (51) is fixedly connected with the movable rod (24), the two ends of the tension spring (52) are fixedly arranged between the clamping block (51) and the straight toothed cylinder (53), and the straight toothed cylinder (53) is engaged with the gear sleeve (431).

3. The gall bladder stone extractor according to claim 1, wherein: The supporting plate (42) is symmetrically fixedly connected with the surface of the fixed sleeve (41), the top of the supporting plate (42) is provided with a second rotating shaft (421), and the gear sleeve (431) is rotatably connected with the second rotating shaft (421).

4. The gall bladder stone extractor according to claim 1, wherein: The tension spring (52) and the straight toothed cylinder (53) are movably arranged in the inside of the fixed sleeve (41), and the clamping block (51) is fixedly arranged on the top of the stone taking cylinder (3).

5. The gall bladder stone extractor according to claim 2, wherein: One end of the fixed rod (21) is fixedly arranged with the surface of the supporting sleeve (1), the other end of the fixed rod (21) is provided with a fixed shaft (211), one end of the adjusting handle (22) is provided with a movable sleeve (221), the movable sleeve (221) is sleeved and arranged on the upper part of the fixed shaft (211), one side of the adjusting handle (22) is provided with a finger groove (222), the top of the movable rod (24) is provided with a first rotating shaft (23), and the first rotating shaft (23) is fixedly connected with the movable rod (24).

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