A kind of trocar valve material and its preparation method and application

Abstract

The invention discloses a valve material of a puncture outfit. The valve material comprises, by weight, 25-45 parts of polydimethylsiloxane, 1.5-3 parts of polymethylsiloxane, 0.5-1.2 parts of platinum complex, 6-13 parts of graphene, 3-7 parts of white mineral oil, 0.2-0.7 part of gel film agent, 6-10 parts of carbon black, 7-15 parts of clay, 2-6 parts of barium sulfate, 0.3-0.5 part of magnesium hydroxide, 1-3 parts of hydroxy fluorosilicon oil, 1-2 parts of polyethylene wax and 1-1.8 parts of glycidyl ether. The invention further discloses a preparation method and application of the valvematerial of the puncture outfit. The valve material of the puncture outfit has the advantages that since a more environment-friendly valve production material is selected, the prepared valve has the characteristics of no unpleasant odor, no toxicity and resistance to high temperature and cold and has outstanding characteristics of physiological inertia and no proneness to blood coagulation; a moreoptimized production technology is adopted, full automatic production can be realized, yield of valve products is increased, production cost is reduced, medical expense burden on patients is reducedfurtherly, and remarkable social benefit is realized.

Description

technical field [0001] The invention relates to a puncture valve material, a preparation method and application thereof, and belongs to the field of medical materials. Background technique [0002] Laparoscopic surgery mostly adopts 2-4 hole operation method, one of which is opened on the belly button of the human body to avoid leaving long scars in the abdominal cavity of the patient. After recovery, only 1-3 holes of 0.5- A 1 cm linear scar can be said to be a small wound and less painful operation, so some people call it "keyhole" surgery. The development of laparoscopic surgery relieves the pain of surgery, shortens the patient's recovery period, and relatively reduces the patient's expenses. It is a surgical project that has developed rapidly in recent years. Laparoscopic surgery mainly uses a medical laparoscopic puncture to puncture the skin to form an operating channel for instruments and optical eyepieces. The medical laparoscopic trocar provides an instrument cha...

AI Technical Summary

Problems solved by technology

Usually after one operation, the number of repeated in and out of surgical instruments is about 20-30 times on average. However, with such a thickness, the valve is easily damaged when the surgical instruments pass through, causing adverse consequences.

On the one hand, after the damage occurs, the airtightness of the valve will decrease, which cannot realize the stable protection of the patient's abdominal pressure; medical malpractice

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