Sealing sleeve and trocar having the same

Abstract

The invention discloses a seal cartridge and a puncture outfit with the same. The seal cartridge comprises a seal body and a mounting flange. The seal body comprises a seal cartridge body and a plurality of seal pieces, the seal cartridge body is provided with an upper opening and a lower opening, the upper ends of the seal pieces are connected with the edge of the lower opening of the seal cartridge body, the lower edges of the seal pieces match with one another, the lower openings of the seal pieces are opened or closed selectively, and the upper end, adjacent to the seal cartridge body, of the mounting flange is open. Every seal piece comprises a first part and a second part, the first part is close to the lower end of the seal piece, the second part comprises a portion close to the lower end of the seal piece, and the first part is thicker than the second part. The seal cartridge has the advantages that the seal cartridge has sufficient restoration acting force, so that closing of the seal pieces is facilitated; friction force between a puncture core rod and the seal pieces is reduced, so that the seal pieces are prevented from being driven to turn up.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a sealing sleeve and a trocar with the sealing sleeve. Background technique [0002] In abdominal examination, abdominal surgery and other minimally invasive or surgical operations, trocar is an indispensable surgical instrument. The trocar can establish an access channel in the abdominal wall of the human body so that staplers or other surgical instruments (such as endoscopes, scissors, guide wires, catheters, filters, stents, etc.) To control the pneumoperitoneum required for surgery for examination or surgical manipulation. At the beginning of a minimally invasive stapler medical operation, the doctor generally makes a small incision in the patient's abdomen, and then aligns the apex of the puncture end with the small incision and moves it downward while reciprocating left and right, and the puncturer makes the puncture sleeve go through through the patient's abd...

AI Technical Summary

Problems solved by technology

[0004] However, when the puncture mandrel, stapler or other surgical instruments are pulled out from the channel established by the puncture device, the sealing performance of the sealing sleeve 1' is poor due to insufficient restoring force generated by the sealing element 11'

In addition, the sealing element 11' of the sealing sleeve 1' is easily turned up when the puncture mandrel, stapler or other surgical instruments are taken out, thus causing the abdominal cavity of the human body to communicate with the external environment and destroying the connection between the abdominal cavity of the human body and the external environment. tightness

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