一种用于结肠憩室粪石的取样钳
By designing a multi-flip sampling forceps and utilizing anti-slip parts and a wrapping clamping method, the problems of unstable fecalith grasping and damage to the intestinal mucosa in existing technologies have been solved, achieving efficient and safe fecalith removal and reducing surgical risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing flat-nose forceps and toothed sampling forceps have poor grasping stability when grasping fecaliths in colonic diverticula, are prone to slippage, have low efficiency, and their sharp teeth can easily damage the intestinal mucosa, prolonging the operation time and increasing safety risks.
A sampling clamp is designed, comprising a connecting part, a sampling part, and an opening and closing drive part. The sampling part consists of multiple clamping plates, with anti-slip parts on the inner side of the clamping plates. The contact area and friction are increased by wrapping and clamping. The inner side of the clamping plates is a concave arc surface, and the outer side is a convex arc surface with smooth edges. The opening and closing drive part drives the clamping plates to close or open, achieving stable gripping.
It improves the efficiency of fecal impaction, reduces the risk of crushing with forceps, shortens the operation time, reduces the risk of damage to the intestinal mucosa, and enhances the safety of the operation.
Smart Images
Figure CN224505479U_ABST
Abstract
Claims
1. A sampling forceps for colon diverticular bezoar, characterized by: It includes a connecting part (1), a sampling part (2), and an opening and closing drive part (3); The connecting part (1) includes a first end (11) for extending into the human body and a second end (12) for connecting to the outside; The sampling section (2) includes a plurality of clamping flaps (21) that are movably connected to the first end (11). The plurality of clamping flaps (21) can move relative to the connecting section (1) to close or open. When the plurality of clamping flaps (21) are closed, they can form a sampling cavity (22) for accommodating fecal stones (5). At least one of the clamping flaps (21) has an anti-slip part (23) on its inner side for clamping the fecal stones (5). The opening and closing drive unit (3) is disposed on the connecting part (1) and is connected to each of the clamps (21) in a transmission manner. The opening and closing drive unit (3) can drive the multiple clamps (21) to move relative to the connecting part (1) to close or open.
2. The sampling forceps for colon diverticular fecalith according to claim 1, characterized by: The inner surface of each of the clamping flaps (21) used to hold the fecal stone (5) is set as a concave arc surface.
3. The sampling forceps for colon diverticular fecalith according to claim 2, characterized by: Each of the pincers (21) is configured with a convex arc surface on its outer side facing away from the fecal stone (5), and the edges of each of the pincers (21) are configured with smooth edges.
4. The sampling forceps for colon diverticular fecalith according to claim 1, characterized by: The anti-slip part (23) is provided on the inner side of each of the clamps (21).
5. The sampling forceps for colon diverticular fecalith according to claim 4, characterized by: The anti-slip part (23) is configured as a plurality of anti-slip protrusions distributed on the inner side of the clamp (21).
6. The sampling forceps for colon diverticular fecalith according to claim 1, characterized by: The second end (12) of the connecting part (1) is provided with an operating handle (4).
7. The sampling forceps for colon diverticular fecalith according to claim 6, characterized by: The opening and closing drive unit (3) includes a push-pull member, a connecting cable and a transmission member (31). The push-pull member is movably disposed at the second end (12). Each of the clamps (21) is rotatably connected to the first end (11). The transmission member (31) is pulsatorically connected to each of the clamps (21). The connecting cable is movably connected to the connecting part (1), and both ends of the connecting cable are respectively connected to the push-pull member and the transmission member (31). The push-pull member is movable relative to the connecting part (1) to drive the connecting cable to move axially relative to the connecting part (1), and then can push and pull each of the clamps (21) through the transmission member (31) so that the multiple clamps (21) can rotate relative to the first end (11) to close or open.
8. The sampling forceps for colon diverticular fecalith according to claim 7, characterized by: The connecting part (1) is configured as a flexible connecting tube and is hollow, and the connecting cable is slidably connected inside the connecting part (1).
9. The sampling forceps for colon diverticular fecalith according to claim 1, characterized by: The connecting part (1), the sampling part (2) and the opening and closing driving part (3) are provided with a biocompatible coating on at least the surface that can contact the inner wall of the body.
10. The sampling forceps for colon diverticular fecalith according to claim 1, characterized by: The surface of the connecting part (1) is provided with scale markings along the direction from the first end (11) to the second end (12).