Puncture cannula used for laparoscopic operation and capable of preventing abdominal viscus puncture injury

Abstract

The invention discloses a puncture cannula used for laparoscopic operation and capable of preventing abdominal viscus puncture injury. The puncture cannula comprises a veress needle, a cutting puncture blade, a puncture pipe core, a puncture outer cannula, an integrated holding lug and a pipe core base, the veress needle, the puncture blade, the puncture pipe core and the puncture outer cannula are sequentially arranged from inside to outside, the veress needle comprises a veress puncture needle head, a puncture handle, a gas port valve and a gas port, the gas port valve and the veress puncture needle head are mounted vertically, the gas port and the veress puncture needle head are mounted vertically, a semicircular pipe core head is arranged at the top end of the puncture pipe core, the cutting puncture blade is arranged in the semicircular pipe core head, the other end of the puncture pipe core is connected with the pipe core base through a spring, the integrated holding lug is arranged between the puncture pipe core and the pipe core base, and an outer cannula antiskid thread is arranged on the puncture outer cannula. By the puncture cannula, puncture injury is reduced, protection of viscera of a patient during operation is facilitated, operating safety coefficient is increased, and leakage during operation is reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a laparoscopic surgery puncture sleeve for preventing puncture damage to abdominal organs. Background technique [0002] At present, the puncture ends of disposable puncture cannula widely used in clinical practice are designed with arrow-shaped tips, which are convenient for puncture and can easily cause the tip of the puncture stylet to damage organs after entering the abdominal cavity, such as the intraperitoneal omentum and intraperitoneal large blood vessels. Complications due to organ injury from puncture are also frequently reported. The classic puncture device often has problems such as air leakage and liquid leakage during use, and it is necessary to continuously replenish the gas required to establish pneumoperitoneum or the liquid required for flushing during the operation; the commonly used laparoscopic puncture sleeves in the past are all 10cm , when appli...

AI Technical Summary

Problems solved by technology

The classic puncture device often has problems such as air leakage and liquid leakage during use, and it is necessary to continuously replenish the gas required to establish pneumoperitoneum or the liquid required for flushing during the operation; the commonly used laparoscopic puncture sleeves in the past are all 10cm , when applied to obese patients, the cannula will come out due to the advance and retreat of the operating instrument, which will affect the smooth progress of the operation

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