Sleeving puncture of laparoscope

A laparoscope and sleeve technology, applied in the field of medical devices, can solve problems such as complicated cleaning of devices, and achieve the effects of low cost and simple implementation.
CN1745722AInactive Publication Date: 2006-03-15佛山特种医用导管有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
佛山特种医用导管有限责任公司
Publication Date
2006-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A sleeve tube type puncture device for the peritoneoscope operation is composed of a sleeve tube with a tubular sheath, and a core needle consisting of needle rod fit movably in said tubular sheath, needle tip with polygonal cone shape, and handle. Said core needle is made of medical hard high-molecular material. Its advantages are simple structure and no damage to blood vessel in abdominal wall.
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Description

【Technical field】

[0001] The present invention relates to a kind of medical instrument, more particularly, the present invention relates to a kind of surgical instrument in laparoscopic operation. 【Background technique】

[0002] The cannula trocar used in laparoscopic surgery is an indispensable surgical instrument in laparoscopic surgery. There are mainly three kinds of puncture ends on the needle core in the trocar currently used: one is a blade, and the other is a metal cone. There is another kind that is similar to a needle tube; but the puncture ends of the above-mentioned traditional needle cores all use metal blades or metal cones, which either have complex structures or are difficult to process, resulting in higher production costs. For example, when producing a metal cone-type piercing end, it is necessary to first fix the piercing end on the needle core on a machine tool to grind the cutting edge, and then carry out injection molding and assembly, and the productio...

Claims

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