Multilevel sealed medical puncture outfit

Abstract

The invention relates to a multilevel sealed medical puncture needle which is mainly suitable for abdominal cavity examinations and an abdominal cavity surgery. Seal rings, straight sealing caps, O-shaped rings and non-resistance seal rings are sequentially arrayed along the center line of an outer tube. After the outer tube is matched with a main body, the outer tube and the main body are sealed through the seal rings, and pressing caps and the main body are welded and then fixed through the straight sealing caps in sealing mode. Clamping caps and the pressing caps are matched and then sealed through the O-shaped seal rings, the pressing caps and the clamping caps are welded and then fixed through the non-resistance seal rings in a sealing mode, and a puncture cone is matched with the outer tube and then sealed through the non-resistance seal rings. Each non-resistance seal ring comprises crumple-shaped thin films and a shooting-type core disc. Each whole non-resistance seal ring is in an integral structure formed in a one-time mode. The multilevel sealed medical puncture outfit is reasonable in design, due to the non-resistance seal rings, the situation that the puncture outfit can move left and right without resistance and not leak when moving front and back in the process of puncturing can be guaranteed, therefore the gas tightness of the puncture needle is guaranteed and the situation that the puncture outfit freely moves in a puncture sleeve is guaranteed.

Description

technical field [0001] The invention relates to a puncture needle, in particular to a multi-stage sealed puncture needle, which is mainly suitable for puncturing the abdominal cavity of a patient for examination and operation, and belongs to medical equipment. Background technique [0002] According to the clinical response, in surgery, the most common quality problems of puncture needles are air leakage and the inability of surgical instruments to move freely in the puncture sleeve, which will result in insufficient intra-abdominal pressure and insufficient abdominal expansion during surgery, resulting in unclear vision and limited operating space. Insufficient, brings inconvenience to operation, and can cause certain influence to operation. [0003] Chinese Patent No. 2008100602142 discloses an invention patent named "New Trocar with Magnetic Ball Seal", which is mainly used to solve the defects of easy aging, easy air leakage and complex structural design of silicone seal...

AI Technical Summary

Problems solved by technology

[0002] According to the clinical response, in surgery, the most common quality problems of puncture needles are air leakage and the inability of surgical instruments to move freely in the puncture sleeve, which will result in insufficient intra-abdominal pressure and insufficient abdominal expansion during surgery, resulting in unclear vision and limited operating space. Insufficient, which brings inconvenience to the operation and will have a certain impact on the operation

[0003] Chinese Patent No. 2008100602142 discloses an invention patent named "Magnetic Ball Seal New Trocar", which is mainly used to solve the defects of easy aging, easy air leakage and complex structural design existing in silicone seals

Although the structural design of the magnetic ball seal is relatively simple, it is prone to increase the resistance of the surgical instrument during puncture during use, resulting in poor hand feeling when the doctor uses the surgical instrument, which brings inconvenience to the operation.

[0004] There are also some puncture needles with other structures, but none of these puncture needles is designed with a non-resistance sealing ring, which cannot guarantee that the instrument can move left and right during the puncture without resistance, nor can it guarantee that the instrument will not leak when it moves back and forth during the puncture, that is, it cannot guarantee Airtightness of the puncture needle and free movement of surgical instruments within the puncture cannula

Images