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Shape memory alloy-based forceps for use in minimally invasive surgery

A memory alloy, minimally invasive surgery technology, applied in the direction of surgical forceps, etc., can solve problems such as tissue sliding easily, no solution to clamped tissue damage, tissue damage, etc.

Inactive Publication Date: 2011-07-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many problems in the clinical application process: when the clamping force is small, the clamped tissue is prone to slip; if the clamping force is too large, it is easy to cause tissue damage
Although this technique has the advantages of accurate positioning of the cutting edge, convenient suturing, and neat alignment, it still does not solve the problem of clamped tissue damage caused by excessive clamping force.

Method used

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  • Shape memory alloy-based forceps for use in minimally invasive surgery
  • Shape memory alloy-based forceps for use in minimally invasive surgery

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Embodiment Construction

[0014] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0015] Such as figure 1 As shown, this embodiment includes: a first handle 1, a second handle 2, a pull wire 3, a regulator 4, an outer shaft 5, a shape memory alloy 6, a main shaft 7, a pliers mouth 8 and a bar tooth 9, wherein: the adjustment The regulator 4 is fixed on the first handle 1, the outer shaft 5 is connected with the regulator 4, the outer shaft 5 is sleeved with the main shaft 7, the main shaft 7 is connected with the pliers mouth 8, one end of the shape memory alloy 6 is connected with the main shaft 7, and the other end is connected with the traction The line 3 is connected, the outer shaft 5 and ...

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Abstract

The invention discloses a shape memory alloy-based forceps for use in minimally invasive surgery, which belongs to the technical field of instruments for minimally invasive surgery, and comprises a first handle, a second handle, a drawing thread, a regulator, an external shaft, a shape memory alloy, a spindle, a jaw and strip teeth, wherein the regulator is fixed on the first handle; the external shaft is connected with the regulator; the external shaft is sleeved with the spindle; the spindle is connected with the jaw; one end of the shape memory alloy is connected with the spindle, and the other end of the shape memory alloy is connected with the drawing thread; the external shaft and the regulator are sleeved with the drawing thread in turn; the drawing thread is connected with the second handle; and the first handle and the second handle are connected. Under the condition of acquiring effective clamping force, the clamped tissues can be well protected without being hurt, and thus, a minimally invasive effect is achieved.

Description

technical field [0001] The invention relates to a device in the technical field of minimally invasive surgical instruments, in particular to a minimally invasive surgical forceps based on a shape memory alloy. Background technique [0002] Surgical forceps is a common clinical surgical instrument used to clamp the tissue to be processed. However, there are many problems in the clinical application process: when the clamping force is small, the clamped tissue is prone to slip; if the clamping force is too large, it is easy to cause tissue damage. Obtaining effective clamping force without causing tissue damage is the key issue in the safe use of surgical forceps. [0003] Smart materials refer to materials that can perceive environmental stimuli and respond to them with certain intelligent characteristics. According to the function, smart materials can be divided into optical fiber, shape memory alloy, piezoelectric, electromorphic and electro (magnetic) stretching material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/29
Inventor 罗云李祥张文光赵爽
Owner SHANGHAI JIAO TONG UNIV
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