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Controllable self-bending suture needle

A suture needle and needle body technology, applied in the field of medical devices, can solve the problems of lack of puncture and suture functions, and achieve the effects of simple structure, simple control, and simplified overall difficulty

Inactive Publication Date: 2012-06-27
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention has no needle point and no suture, so it does not have the functions of piercing and suturing

Method used

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  • Controllable self-bending suture needle
  • Controllable self-bending suture needle
  • Controllable self-bending suture needle

Examples

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Embodiment Construction

[0023] The essential meaning of using suture needles for tissue penetration is to penetrate the sutures on both sides of the wound (or other places to be sutured), so that subsequent suture knotting can continue. The present invention greatly simplifies the complexity of the tissue penetrating action by designing a suture needle capable of precisely controlling the autonomous bending trajectory and its needle-feeding mechanism, thereby reducing the overall difficulty of the suturing action.

[0024] Such as image 3 As shown, the first preferred embodiment of the present invention consists of a needle body 20 , a needle tube 30 and a needle feeding mechanism 40 .

[0025] The tubular needle body 20 is made of elastic material with strong resilience, and the needle body 20 is integrally passed through the sink needle tube 30; the pushing control of the needle feeding mechanism 40 can conveniently realize the action of tissue penetration. The tubular needle body 20 undergoes a ...

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PUM

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Abstract

The invention provides a controllable self-bending suture needle, which is used for an endoscopic surgery. The controllable self-bending suture needle comprises a needle body, a needle placing tube and a needle feeding mechanism. The needle body is tubular and a suture internally passes through the needle body. The needle body is entirely arranged in the needle placing tube in a passing-through manner. One end of the needle placing tube is provided with a rigid tubular end and the other end of the needle placing tube is fixedly coupled with the needle feeding mechanism. The tail end part of the needle body is pre-formed to be a circular arc shape when the tail end part is not limited, and the other end of the needle body is connected with the needle feeding mechanism. The tail end part of the needle body can be contained in the rigid tubular end of the needle placing tube or exposed outside the rigid tubular end of the needle placing tube by pushing of the needle feeding mechanism. The tail end part of the needle body is contained in the rigid tubular end of the needle placing tube to be limited, so as to form a shape which is consistent to the shape of a hollow inner cavity. The controllable self-bending suture needle provided by the invention has the advantages of simple structure and convenience in control. The complex space movement of tissue penetration is simplified to be a linear pushing movement of the needle feeding mechanism to the needle body and a bunching device, and the tissue suture difficulty is simplified.

Description

technical field [0001] The present invention relates to a medical instrument for surgical operations, in particular to a structure and a use method of a suture needle for performing an operation through an endoscope. Background technique [0002] In the currently widely used wound suturing operation, doctors use three-eighths or semicircular rigid stainless steel sewing needles 1 to suture the wound. Stitch 1 as figure 1 As shown, the needle semi-circular shape has an axis 2 . One end of the traditional stainless steel suture needle 1 is formed with a sharp edge, which is convenient for penetrating organ tissues; the cross section of the other end is formed into a non-circular polygon (such as a triangle), which is convenient for the effective clamping of the needle forceps. A suture is attached to one end of the non-circular polygonal cross-section. [0003] Suturing with conventional needles is a two-step procedure, tissue penetration and suture knotting. Such as fig...

Claims

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Application Information

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IPC IPC(8): A61B17/06
Inventor 徐凯赵江然
Owner SHANGHAI JIAO TONG UNIV
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