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 pro

Method used

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

Examples

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[0015] Example

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

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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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