Anti-slip sealing ring for trocar and trocar sheath and trocar

Abstract

The invention relates to an anti-sliding seal ring, which comprises a notch, a supporting surface, an end sealing surface, a sealing convex edge, a flanging, a flanging reinforcing rib, and an installing groove. The notch is arranged in the central part of the supporting surface; the sealing convex edge is arranged on the inner side of the end sealing surface and is raised upwards; the flanging is arranged on the outer side of the end sealing surface and is raised downwards; the flanging reinforcing rib is arranged under the flanging and is connected with the flanging; installing groove holes are formed among the sealing convex edge, the end sealing surface, the flanging and the flanging reinforcing rib. With the flanging reinforcing rib, the surrounding force of the anti-sliding seal ring provided by the invention when the anti-sliding seal ring is installed is increased, so that the resistance of the anti-sliding seal ring provided by the invention when the anti-sliding seal ring falls off is greatly improved, and the seal ring is prevented from sliding off. After a puncture outfit sheathing tube, and a puncture outfit provided by the invention use the anti-sliding seal ring provided by the invention, the seal ring is prevented from sliding off, so that the use process is safer and more reliable.

Description

technical field [0001] The invention relates to a laparoscopic surgical instrument, in particular to an anti-slip sealing ring of a trocar used in laparoscopic surgery, a trocar sheath and a trocar containing the anti-slip sealing ring. Background technique [0002] Laparoscopic surgery has been used more and more widely. In order to avoid iatrogenic infection, the amount of disposable trocar (Trocar) used in laparoscopic surgery is also increasing. According to different surgical requirements, there are more and more types of surgical instruments passing through the puncture device, and the shapes are also more and more complicated. During the use of the trocar, the most frequently contacted part with the surgical instrument is the sealing ring. To ensure that the sealing ring is not damaged or fall off during the operation, the operation can be carried out smoothly. And the sealing ring of the puncture device of the prior art, in the operation process, due to the complex...

AI Technical Summary

Problems solved by technology

However, in the sealing ring of the puncture device of the prior art, during the operation, due to the complexity of the shape of the surgical instrument and the frequency of the surgical instrument entering and exiting, the slipping phenomenon of the sealing ring will occur, thereby affecting the normal operation of the operation.

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