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.

Inactive Publication Date: 2006-03-15
佛山特种医用导管有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously this instrument also has the shortcoming similar to above-mentioned;

Method used

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  • Sleeving puncture of laparoscope
  • Sleeving puncture of laparoscope
  • Sleeving puncture of laparoscope

Examples

Experimental program
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Embodiment

[0025] like figure 1 , 2 , shows a needle core 2 of the present invention, which includes a needle point 21, a needle shaft 22, and a handle 23 connected in sequence; on the solid end of the needle bar and on the axis of the needle bar, and the needle point 21 is a quadrangular pyramid formed by four identical or similar pyramid slopes, between each pyramid slope, between the needle point 21 and the needle bar 22, the needle bar 22 and the handle 23 are smooth and seamless fastened connections; the needle core 2 is made of hard medical polymer material by one-time integral injection molding. The diameter of the needle shaft 22 is 5.7 mm. The angle between adjacent edges of the needle point 21 is 40 degrees. The handle 23 of the needle core 2 is a connecting body of multiple ribs.

[0026] like image 3 , shows a casing 1 of the present invention, the casing 1 also includes a shut-off end 12 with a valve-type check valve 14 inside, and the valve-type check valve 14 is a do...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B17/00
Inventor 姜小波蒋屏山
Owner 佛山特种医用导管有限责任公司
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