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Veress needle

A technology of Veress needle and needle, applied in the field of Veress needle

Pending Publication Date: 2018-08-21
5R MED TECH CHENGDU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems existing in the existing Veress needle, the purpose of the present invention is to provide a Veress needle with clear indication and high visibility.

Method used

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Embodiment Construction

[0032] Embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be practiced in various ways. Therefore, this disclosure is not to be interpreted as limiting, but merely as a basis for the claims and as a basis for teaching one skilled in the art how to use the invention.

[0033] refer to figure 1 , for the convenience of expression, the side of the Veress needle 10 that is close to the operator is defined as the proximal end, and the side far away from the operator is defined as the distal end, and the direction along which the Veress needle 10 is inserted is defined as the radial direction. Direction A substantially vertical direction is defined as a lateral direction.

[0034] It can be seen from the background technology that in order to solve the situation that the surgeon cannot or insufficiently prompt when using the Veress needle, the indicator marks set ...

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PUM

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Abstract

The invention discloses a veress needle which sequentially comprises an outer needle, an inner needle, handle, an air valve, an indicating block and a spring from a far end to a near end, wherein theouter needle is provided with an acute needle head, the inner needle is provided with an obtuse needle head, and the indicating block is mounted in the handle. The outer needle, the inner needle, thehandle and the air valve form a hollow channel, the hollow channel can contain and pass gas or liquid, the handle comprises a first indicating area and a second indicating area, the indicating block is limited between the first indicating area and the second indicating area to radially move under the action of the spring along with a fact that the obtuse needle head of the inner needle extends outof or contracts from the acute needle head of the outer needle, the first indicating area and the second indicating area include transparent amplification areas, and the indicating block is displayedas amplified virtual images in the amplification areas.

Description

technical field [0001] The invention relates to a minimally invasive surgical instrument, in particular to a Veress needle. Background technique [0002] Surgical instruments have a history of hundreds of years. During surgery, doctors use different surgical instruments to complete operations such as tissue grasping, cutting, separation, coagulation, and suture closure. Surgical instruments have matured after hundreds of years of development. Laparoscopic surgery has been clinically carried out for more than 30 years and is making rapid progress. Simply put, laparoscopic surgery means that the surgeon uses an extended laparoscopic hand-held instrument to enter the patient's body through the natural orifice or a constructed puncture channel, and completes operations such as tissue grasping, cutting, separation, coagulation, and suture closure. [0003] In laparoscopic surgery, it is necessary to establish the pneumoperitoneum first, and then puncture to complete operations s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B17/00
CPCA61B17/00234A61B17/3417A61B17/3474A61B2017/3454
Inventor 朱莫恕
Owner 5R MED TECH CHENGDU CO LTD
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