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Sleeve structured medical in vivo minimally-invasive object-catching forceps

A structural and sleeve technology, which is applied in the field of medical devices, can solve the problems of four-connected biopsy forceps such as difficulty in manufacturing, low strength, and high cost, and achieve the effects of widening applications, increasing structural strength, and improving performance

Inactive Publication Date: 2011-07-20
南京思维斯精密机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of the existing four-connected biopsy forceps, which are difficult to manufacture, high in cost and low in strength, and to design a method that does not use a four-bar linkage mechanism to drive the left and right forceps heads, and at the same time, it is easy to manufacture and install, and its strength can be doubled. High-quality, low-cost sleeve-structure medical minimally invasive extraction forceps in vivo

Method used

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  • Sleeve structured medical in vivo minimally-invasive object-catching forceps
  • Sleeve structured medical in vivo minimally-invasive object-catching forceps
  • Sleeve structured medical in vivo minimally-invasive object-catching forceps

Examples

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Effect test

Embodiment 1

[0031] Such as Figure 1-4 shown.

[0032] A sleeve-structured medical in vivo minimally invasive extraction forceps, including forceps head assembly, cable, elastic outer tube and handle, etc., the cable, elastic outer tube and handle, etc. Similarly, the pliers assembly of the present invention is mainly composed of a left pliers 1, a right pliers 2, a sleeve 3, and a control part 4 that controls the opening and closing of the left pliers 1 and the right pliers 2 and the moving distance, such as figure 1 As shown, the left pliers 2 and the right pliers 3 can be used in addition to image 3 , 4 In addition to the shown structure, the pliers of any existing structure can also be used, such as band pliers structure, sawtooth structure, etc., the jaws of the left pliers 1 and the right pliers 2 extend out of the sleeve 3, and the left The pliers tail parts of the pliers head 1 and the right pliers head 2 are connected by a connecting pin 5, and the connecting pin 5 is connect...

Embodiment 2

[0036] Such as Figure 5-8 shown.

[0037] The difference between this embodiment and Embodiment 1 is that the left and right pincers are connected in different ways in the sleeve 3. The left pincers 1 and the right pincers 2 are connected by a ball joint structure 8, and one end of the cable 10 is connected to the ball joint structure. The spheres in 8 are connected, and the left pincer head 1 and the right pincer head 2 are provided with a ball socket on one end of the sleeve 3, such as Figure 7 , 8As shown, the ball and socket on the left pliers 1 and the right pliers 2 are enveloped and attached to the sphere, and are limited by the mounting holes in the sleeve 3, the left and right pliers can rotate around the sphere without falling off , which is exactly the same as the existing spherical joint structure. In addition, when the control part 4 of this embodiment adopts the structure that the torsion spring matches the positioning groove or the boss, the two ends of the...

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Abstract

The invention provides sleeve structured medical in vivo minimal-invasion object-catching forceps, comprising a binding clip component. The forceps are characterized in that the binding clip component mainly consists of a left binding clip (1), a right binding clip (2), a sleeve (3) and a control part (4) for controlling the open and close and the moving distance of the left binding clip (1) and the right binding clip (2), wherein the jaw parts of the left binding clip (1) and the right binding clip (2) extend out of the sleeve (3), while the tail parts of the left binding clip (1) and the right binding clip (2) are connected with each other through a connecting pin (5); the connecting pin (5) is connected with a drive inhaul cable one end of which is arranged in the sleeve (3) in a penetrating manner; outsides of the left binding clip (1) and the right binding clip (2) are provided with drive surfaces (3) which props against the port wall of the sleeve (3) and can automatically closed when driving the left binding clip (1) and the right binding clip (2) to contract inwards the sleeve (3); and the control part (4) is arranged on the sleeve (3). The forceps have the advantages of simple structure, convenient manufacture, low cost and high strength.

Description

technical field [0001] The present invention relates to a medical instrument, especially a kind of minimally invasive operation or inspection process used to clamp human tissue into biopsy, take out foreign matter that enters the human body or to help surgeons clamp human tissue to make it The positioned retrieval forceps is specifically a kind of sleeve structure minimally invasive retrieval forceps in the medical body. Background technique [0002] As we all know, minimally invasive surgery has developed rapidly in recent years, and it has the advantages of low surgical risk, small trauma, and fast recovery. In addition, endoscopy has been widely used in clinic as an auxiliary diagnostic method. In endoscopic examination, sampling forceps is an essential tool. When doctors or patients wish to conduct pathological examination on the lesion, it can enter the patient's body through the endoscopic forceps channel to clamp the tissue of the lesion for pathological examination....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/29A61B10/06A61B17/50
Inventor 姚建飞陈永和李自力
Owner 南京思维斯精密机械制造有限公司
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