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Minimally-invasive endoscope operating forcep head

A technology of surgical forceps and forceps head, applied in the direction of surgical forceps, etc., can solve problems such as tissue damage that cannot be solved, and achieve the effect of improving surgical safety, reasonable design, and simple structure

Inactive Publication Date: 2014-03-05
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure enhances the anti-slip performance of the forceps during the tissue clamping process, but it still cannot solve the problem of tissue damage caused by excessive clamping force

Method used

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  • Minimally-invasive endoscope operating forcep head
  • Minimally-invasive endoscope operating forcep head

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Experimental program
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Embodiment

[0016] Such as Figure 1 to Figure 2 As shown, the present invention includes a first pincer arm 1, a second pincer arm 2, a first pin shaft 3, a second pin shaft 4 and a push-pull shaft 8, and the head of the first pincer arm 1 is designed as a first driven gear 6. The head of the second pliers arm 2 is designed as the second driven tooth 5, and the end of the push-pull shaft 8 is designed as the driving rack 7, on the basis of the first driven tooth 6 and the second driven tooth 6 The first pin shaft 3 and the second pin shaft 4 are respectively arranged on the center of the circle, the head of the first pincer arm 1 and the head of the second pincer arm 2 are respectively socketed with the first pin shaft 3 and the second pin shaft 4 , the first driven tooth 6 and the second driven tooth 5 are meshed with the driving rack 7, and both the first driven tooth 6 and the second driven tooth 5 have cylindrical spur involute tooth profiles The driving rack 7 is a straight toothed...

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Abstract

A minimally-invasive endoscope operating forcep head comprises a first forcep arm, a second forcep arm, a first pin shaft, a second pin shaft and a pulling-pushing shaft. The head of the first forcep arm is designed to be a first driven tooth piece. The head of the second forcep arm is designed to be a second driven tooth piece. The tail end of the pulling-pushing shaft is designed to be a driving rack. The first pin shaft and the second pin shaft are arranged on the base circle centers of the first driven tooth piece and the second driven tooth piece respectively. The head of the first forcep arm and the head of the second forcep arm are connected with the first pin shaft and the second pin shaft in a sleeved mode respectively. The first driven tooth piece and the second driven tooth piece are both meshed with the driving rack. According to the minimally-invasive endoscope operating forcep head, the direct proportion relationship between forcep opening clamping force and operation force can be achieved, an operator can sense and control magnitude of clamping force accurately, and operation safety is improved.

Description

technical field [0001] The invention relates to a surgical forceps head in the field of minimally invasive surgical instruments, in particular to a minimally invasive endoscopic surgical forceps head capable of realizing a linear mechanical relationship. Background technique [0002] Minimally invasive endoscopic surgical forceps is a common surgical instrument in laparoscopic surgery, which is used to clamp human tissue during surgery. The clamp head of surgical forceps used in open surgery uses the principle of leverage, and the clamping force has a linear relationship with the force on the handle. Therefore, it is easier for the operator to perceive the magnitude of the clamping force and avoid overpressure clamping. However, due to structural limitations, the clamping force and operating force of the minimally invasive endoscopic surgical forceps present a non-linear relationship, making it impossible for the operator to correctly perceive the clamping force, which may e...

Claims

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Application Information

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IPC IPC(8): A61B17/29
CPCA61B17/29A61B2017/294A61B2017/2943
Inventor 罗云赵儒镇赵爽李祥张文光
Owner SHANGHAI JIAO TONG UNIV
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