一种输尿管结石手术辅助装置
By designing a surgical aid device for ureteral stones with a rotating seat and a multi-pore filter plate, the problems of difficult control of negative pressure suction and easy clogging of the filter device are solved, thus improving surgical efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU CENT PEOPLES HOSPITAL
- Filing Date
- 2025-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, it is difficult to effectively control the intensity of negative pressure suction after laser lithotripsy in ureteral stone surgery, and the filter device is easily blocked by large pieces of stone, affecting the efficiency of the operation.
A surgical aid device for ureteral stones was designed, comprising a rotating seat, a negative pressure regulating hole, an adjusting plate, and a rotating ring. The magnitude of the negative pressure suction is adjusted by rotating the rotating ring. A multi-pore filter plate and a detachable filter plate structure are adopted to achieve flexible control of negative pressure and prevent blockage.
It enables flexible adjustment of negative pressure suction, improving surgical efficiency, and avoids filter clogging through a detachable filter plate structure, simplifying the cleaning and replacement process.
Smart Images
Figure CN224505520U_ABST
Abstract
Claims
1. A ureteral stone surgery assisting device comprising a guide sheath (1), characterized in that, The guide sheath (1) has a suction tube (3) on one side wall and a stone collection tube (4) connected to the other end of the suction tube (3). A rotating seat (5) is fixed at the top of the suction tube (3). A rotating ring (8) is rotatably connected to the outer wall of the rotating seat (5). The bottom end of the rotating seat (5) is connected to the suction tube (3). A negative pressure adjustment hole (6) is opened on the side wall of the rotating seat (5). An adjustment plate (7) is rotatably fitted on the inner wall of the rotating seat (5). The adjustment plate (7) is located on one side of the negative pressure adjustment hole (6). The adjustment plate (7) is fixedly connected to the rotating ring (8).
2. The ureteral stone surgery auxiliary device according to claim 1, characterized in that, The inner wall of the rotating seat (5) is provided with multiple connecting cavities (9), and the inner wall of the connecting cavity (9) is slidably fitted with a limit rod (10).
3. The ureteral stone surgery auxiliary device according to claim 2, characterized in that, The top end of the limiting rod (10) is fixedly connected to a spring (11), and the other end of the spring (11) is fixedly connected to the inner wall of the connecting cavity (9). The top outer wall of the rotating ring (8) is provided with an arc-shaped groove that cooperates with the limiting rod (10) for limiting.
4. The ureteral stone surgery auxiliary device according to claim 1, characterized in that, The guide sheath (1) is provided with an infusion tube (2) on its side wall. One end of the infusion tube (2) is provided with a second connector for connection to an external infusion device. A pressure sensor is provided inside the end of the infusion tube (2) near the second connector.
5. The ureteral stone surgery auxiliary device according to claim 1, characterized in that, The stone collection tube (4) includes a hollow tube (12) and a closed cap (13). The hollow tube (12) is detachably connected to one end of the suction tube (3). The closed cap (13) is threaded to one end of the hollow tube (12). A first connector (14) is provided on the side wall of the closed cap (13). The first connector (14) is connected to an external negative pressure suction device.
6. The surgical aid device for ureteral stones according to claim 5, characterized in that, A filter plate (18) is fixed to the inner wall of the closed cover (13). Three clamping rings (16) are provided at one end of the filter plate (18). The clamping rings (16) are connected by threads. One clamping ring (16) close to the filter plate (18) is threaded to the filter plate (18). The two adjacent clamping rings (16) and the clamping ring (16) adjacent to the filter plate (18) are all limited and clamped to the filter plate (18) by a positioning ring (17). The filter plate (18) is fixed to the inner wall of the positioning ring (17).
7. The ureteral stone surgery auxiliary device according to claim 6, characterized in that, The filter plate (18) is conical, and the filter hole diameter of the multiple rotating rings (8) decreases gradually along the direction from the suction tube (3) to the closing cover (13). The outer wall of the pressing ring (16) and the filter plate (18) slides in fit with the inner wall of the hollow cylinder (12).
8. The ureteral stone surgery auxiliary device according to claim 5, characterized in that, A rubber sealing gasket is provided on the inner wall of the hollow cylinder (12) near the suction tube (3), and a one-way valve is provided on the inner wall of the suction tube (3) near the hollow cylinder (12).