Sealing ring protection sheet for puncture outfit, end sealing assembly and puncture outfit

Abstract

The invention discloses a sealing ring protection sheet for a puncture outfit. The sealing ring protection sheet comprises a positioning skirt edge, a supporting sheet and a curved surface protection sheet; the upper end of the supporting sheet is connected with the inner side of the positioning skirt edge, and the lower end of the supporting sheet is connected with the upper end of the curved-surface protection sheet; the curved surface protection sheet is provided with a weakening area, and the weakening area is a weakening groove formed in the side face of the curved surface protection sheet or weakening lines formed in the back face of the curved surface protection sheet; and an an easy-to-deform area is formed between the weakening groove or the weakening line and the bottom edge of the curved-surface protection sheet. When a surgical instrument is pulled out, the easy-to-deform area deforms preferentially, so that the lower end of the curved-surface protection sheet is effectively prevented from being embedded in a convex step or a groove of the surgical instrument, and the resistance when the surgical instrument is pulled out is reduced. According to the puncture outfit comprising the sealing ring protection sheet for the puncture outfit, it can be guaranteed that the funnel-shaped sealing ring is not punctured by the surgical instrument in the operation process, good sealing performance is guaranteed, resistance during movement is reduced, particularly, the resistance to movement when the surgical instrument is pulled out is reduced, and the smoothness of the surgical instrument during movement is well guaranteed.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a sealing ring protection sheet, an end sealing assembly and a trocar used in laparoscopic surgery. 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. In the process of frequent surgical instruments entering and exiting, ensuring the dynamic sealing of the trocar is the key to ensure the smooth progress of the operation. Moreover, various surgical instruments of different shapes are used during the operation. Therefore, the trocar needs to be able to adapt to various surgical instruments of different shapes to facilitate the entry and exit of the instruments. Moreover, the process of entering and exiting the instruments needs to be kept low. Resistance, so as to ensure the smoothness of the movement process of the equipment....

AI Technical Summary

Problems solved by technology

The design of the sealing ring protection sheet can reduce the thickness of the sealing ring as much as possible while maintaining the sealing performance, thereby reducing the resistance caused by the sealing ring to the ingress and egress of the instrument, but in turn, the sealing ring protection sheet itself will increase the ingress and egress of the instrument. movement resistance

Especially for special-shaped surgical instruments, such as 7-shaped forceps, or surgical instruments with convex steps or grooves, the protective sheet in the prior art will be embedded in the convex steps or grooves, forming a large gap when the surgical instrument is inserted or pulled out. resistance

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