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Groove-shaped transmission piece of multi-degree-of-freedom transmission mechanism

A technology of transmission mechanism and transmission parts, which is applied in the direction of rotating motion axis, medical science, surgery, etc. It can solve the problems of poor operating freedom and flexibility, difficulty in transmitting force or torque, etc., and achieve the effect of easy cleaning and disinfection and simple structure

Inactive Publication Date: 2012-05-23
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has a large degree of freedom, but it is difficult to transmit a large force or torque, while the latter can transmit a large force or torque, but because it cannot be bent, the degree of freedom and flexibility of operation is extremely poor.

Method used

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  • Groove-shaped transmission piece of multi-degree-of-freedom transmission mechanism
  • Groove-shaped transmission piece of multi-degree-of-freedom transmission mechanism
  • Groove-shaped transmission piece of multi-degree-of-freedom transmission mechanism

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Embodiment Construction

[0016] The present invention will be further described in detail in conjunction with specific embodiments and accompanying drawings.

[0017] See first figure 1 The perspective view of the present invention shows that the multi-degree-of-freedom transmission mechanism trough-shaped transmission member 1 is installed in the transmission mechanism of the minimally invasive surgical instrument for transmitting operation force and torque. The trough-shaped transmission part 1 is a cylindrical member, and its two ends are ends 12 for connecting the handle of the surgical instrument and the brake mechanism, and the end 12 is a solid or hollow cylinder; the trough-shaped transmission part 1 The middle is the groove part 11, please refer to figure 2 , the groove portion 11 is composed of a plurality of joint pieces 13 . Please refer to image 3 with Figure 4 , the joint piece 13 is a sheet structure, its lower part is a ring 131, and two protrusions 132 are arranged symmetricall...

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Abstract

The invention discloses a groove-shaped transmission piece of a multi-degree-of-freedom transmission mechanism. The groove-shaped transmission piece is a cylindrical piece, the two ends of the groove-shaped transmission piece serve as end parts, the middle of the groove-shaped transmission piece serves as a groove part, the end parts are solid or hollow cylinders, the groove part consists of a plurality of joint pieces with platy structures, the lower parts of the joint pieces are rings, two symmetric bosses are arranged on each of the left and right sides of the top of each ring, and each two adjacent joint pieces among the joint pieces are arranged in a mutually-vertical and alternating manner and are fixedly connected end to end. The structure makes the groove-shaped transmission piece a semi-rigid member with certain flexibility that can transmit enough operational force and torque and bend to ensure the multiple degrees of freedom and flexibility of operational instruments. The groove-shaped transmission piece of the multi-degree-of-freedom transmission mechanism has the advantages of simple structure, easy cleaning and disinfection and repeated use, and is suitable to be used as a transmission mechanism of a minimally invasive surgical instrument.

Description

technical field [0001] The invention relates to the field of minimally invasive medical instruments, in particular to a groove-shaped transmission member used in a multi-degree-of-freedom transmission mechanism in minimally invasive surgical instruments. Background technique [0002] The minimally invasive surgery (Minimally Invasive Surgery, MIS) technology field is at the forefront of today's medical technology development direction. Minimally invasive surgery represented by Laparoscopic Surgery (LS) has gradually replaced traditional laparotomy. After more than 20 years of development, laparoscopic minimally invasive surgery technology has gradually matured. It has been widely used and satisfied in clinical practice due to its characteristics of small surgical trauma, mild postoperative pain, short hospital stay, and good cosmetic effect. Effect. Conventional laparoscopic surgery is accomplished through multiple (3-5) tiny incisions (about 5-12mm). With the enrichment of...

Claims

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Application Information

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IPC IPC(8): A61B17/00F16C1/02
Inventor 宋成利程小丽吴文武
Owner UNIV OF SHANGHAI FOR SCI & TECH
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