Turnable sealing ring assembly in puncture outfit

Abstract

The invention relates to a turnable sealing ring assembly in a puncture outfit. The turnable sealing ring in the puncture outfit comprises a spherical sealing ring (8) and is characterized in that inner and outer surfaces of the spherical sealing ring (8) are uneven discontinuous smooth surfaces; the turnable sealing ring further comprises a pair of buckled spherical bowl-shaped internal clampingshell (5) and spherical bowl-shaped external clamping shell (1); the two clamping shells after being buckled form a cavity which corresponds to the upper half part of the spherical sealing ring (8); and the upper half part of the spherical sealing ring (8) is arranged in the cavity and is fixedly clamped between the two clamping shells. The advantage of the turnable sealing ring assembly in the puncture outfit disclosed by the invention is that the turnable sealing ring assembly overcomes the disadvantage that the aperture of the round channel of the spherical sealing ring deforms and cannot be sealed with the surgical instrument to cause air leakage in a human abdominal cavity since the spherical sealing ring cannot rotate randomly along with the swinging of an instrument when the surgical instrument swings randomly in the surgery process.

Description

technical field [0001] The invention relates to a component of a medical device, especially a rotatable seal ring component of a disposable abdominal puncture device, which effectively prevents the leakage of CO2 gas in the abdominal cavity of a human body caused by the swing of the surgical device during the operation. Background technique [0002] The current laparoscopic minimally invasive surgery generally first cuts the abdominal wall, then punctures, and builds a surgical channel. Then inject CO2 gas to establish human pneumoperitoneum, and the doctor performs laparoscopic surgery under the laparoscopic monitoring system. The puncture device is composed of several parts such as a spherical gas seal, a three-petal sealing valve, a sealing assembly gland, a housing, and a puncture needle. Trocars are used in conjunction with instruments during surgery. However, during the operation, when the surgical instrument swings freely, the spherical seal in the trocar cannot eff...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art, and provide a rotatable sealing ring assembly in the trocar, which overcomes the fact that the spherical sealing ring cannot rotate arbitrarily with the swing of the instrument during the operation. , so that the orifice of the circular channel of the spherical sealing ring is deformed, and it cannot be sealed with surgical instruments, resulting in the defect of gas leakage in the human abdominal cavity

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