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Trocar and trocar set

A trocar and trocar technology, applied in the direction of trocars, catheters, puncture needles, etc., can solve the problems of patients' puncture site burden, trocars are easy to get in the way, and achieve the effect of safe, smooth and reliable operation

Active Publication Date: 2010-06-16
CREATE MEDIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the device described in Patent Document 2, since the trocar is directly punctured into the biological tissue and used as a catheter, the trocar part is easy to get in the way, and since the rear end is formed into a large bulging shape, so it places a heavy burden on the puncture site of the patient

Method used

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  • Trocar and trocar set

Examples

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Effect test

Embodiment

[0053] figure 1 is a perspective view of a trocar and a sheath according to the first embodiment of the present invention, figure 2 It is a perspective view of a trocar set in which a trocar is attached to a sheath according to another embodiment of the present invention.

[0054] Such as figure 1 As shown, the trocar 2 has a housing 3 that can be held with one hand, a trocar 6 extending from the inside of the housing 3 to the outside, and a needle sleeve 8 that accommodates the trocar 6 until the tip 6a of the trocar 6 . Here, the direction of the needle tip 6a of the trocar 6 is referred to as the front, and the opposite direction is referred to as the rear.

[0055] In this embodiment, the needle sleeve 8 is formed of transparent plastic that can see through the trocar 6, but there is no limitation on whether the needle sleeve 8 is transparent or whether the material is plastic.

[0056] Such as figure 2 As shown, trocar set 1 is formed by inserting trocar 2 into shea...

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Abstract

The present invention provides a trocar with an introduction sheath and a trocar set, wherein, the trocar is capable of preventing the danger of mis-puncturing of a front living body wall and preventing needlepoint of a trocar which is pulled out from a patient, and the trocar has perfect operability in operations, is also safe and easy to use. The trocar comprises an arresting device which restricts the trocar positioned in a trocar casing tube when the trocar is not used and restricts to make that when a finger presses a button, the restriction can be released when the trocar is being used. As the puncturing pressure, the trocar casing tube is back to project the point of the trocar and retains the state until the trocar arrives in a body cavity and the pressure is lower than a prescribed pressure, and then the trocar casing tube returning back to the trocar storing position and retains the state.

Description

technical field [0001] The present invention relates to a trocar and a trocar set for opening an insertion route for inserting a catheter into a patient's abdominal cavity by puncturing a trocar during endoscopic surgery, etc. Trocars and trocar sets that protect medical personnel by covering the needle after the trocar has been removed from the patient while eliminating the risk of the trocar accidentally puncturing the anterior body wall. Background technique [0002] In endoscopic surgery, insert a guide wire, laparoscope (endoscope), forceps, or scalpel (scalpel) into the patient's abdominal cavity, esophagus, stomach, intestines, liver, spleen, pancreas, hernia, etc. Remote surgery performed with surgical tools such as laser scalpels can reduce surgical scars, reduce wound infection or postoperative complications, and the possibility of intra-abdominal adhesions, etc., can take food early, reduce postoperative wound pain or abdominal wall dysfunction, and shorten hospit...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3415A61B17/3496
Inventor 铃木正博冨田显慈伊藤隆康
Owner CREATE MEDIC
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