Surgical instrument with improved lock mechanism

A technology of surgical instruments and lock mechanism, which is applied in the direction of surgery, surgical forceps, medical science, etc., and can solve the problems of increasing operation time, operation risk, increasing patient pain, etc.

Pending Publication Date: 2018-08-21
5R MED TECH CHENGDU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, it can only partially meet the realization requirements of the surgeon, but it increases the pain of the patient, increases the operation time and the various surgical risks brought about by it.

Method used

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  • Surgical instrument with improved lock mechanism
  • Surgical instrument with improved lock mechanism
  • Surgical instrument with improved lock mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0040] Embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be practiced in various ways. Therefore, this disclosure is not to be interpreted as limiting, but merely as a basis for the claims and as a basis for teaching one skilled in the art how to use the invention.

[0041] refer to Figure 1-4 , for the convenience of expression, the side close to the operator is defined as the proximal end, and the side far away from the operator is defined as the far end.

[0042] Such as Figure 1-3 As shown, in conjunction with the aforementioned background, during surgical operations, especially laparoscopic surgery, when the cannula assembly (not shown) is inserted into place, various minimally invasive surgical instruments, such as the surgical hand instrument 10, can pass through the sleeve The channel formed by the tube assembly is inserted into the body cavity. I...

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PUM

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Abstract

The invention discloses a surgical instrument with an improved lock mechanism. The surgical instrument comprises a far-end working head, a near-end handle and an extension rod extending between the far-end working head and the near-end handle. The handle comprises a front hand grip, a rear hand grip and a handle rotating shaft connected with the front hand grip and the rear hand grip, the front hand grip and the rear hand grip can rotate relative to the handle rotating shaft, the working head comprises a pair of clamp heads and a driving mechanism connected with the clamp heads, the extensionrod comprises a rotating wheel, an outer rod and an inner pull rod, the outer rod and the rotating wheel are fixed together and mounted in the front hand grip, one end of the inner pull rod is connected with the driving mechanism, the other end of the inner pull rod is connected with the rear hand grip, the lock mechanism comprises a cantilever integrally connected with the rear hand grip, the cantilever comprises a plurality of first lock teeth and second lock teeth matched with the first lock teeth, and the handle further comprises the lock mechanism with a valid mode and an invalid mode.

Description

technical field [0001] The invention relates to a minimally invasive surgical instrument, in particular to a surgical instrument with an improved locking mechanism. Background technique [0002] Surgical instruments have a history of hundreds of years. During surgery, doctors use different surgical instruments to complete operations such as tissue grasping, cutting, separation, coagulation, and suture closure. Surgical instruments have matured after hundreds of years of development. Laparoscopic surgery has been clinically carried out for more than 30 years and is making rapid progress. Simply put, laparoscopic surgery means that the surgeon uses an extended laparoscopic hand-held instrument to enter the patient's body through the natural orifice or a constructed puncture channel, and completes operations such as tissue grasping, cutting, separation, coagulation, and suture closure. [0003] Compared with traditional open surgery, laparoscopic surgery has the main advantage...

Claims

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Application Information

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IPC IPC(8): A61B17/00A61B17/29
CPCA61B17/00234A61B17/2909A61B2017/00393A61B2017/00424A61B2017/00438A61B2017/2946A61B2017/2912A61B2017/2925
Inventor 朱莫恕
Owner 5R MED TECH CHENGDU CO LTD
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