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Improved locking mechanism on surgical instrument

A locking mechanism and surgical instrument technology, applied in the direction of surgical fixation nails, etc., can solve problems such as soft tissue damage, and achieve the effect of large locking torque

Pending Publication Date: 2018-12-14
SUZHOU FRANKENMAN MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention improves the joint structure between the end effector of the stapler and the slender shaft, and adopts the method of friction connection to replace the traditional tooth connection for joint locking, thereby solving the problem of the angle adjustment of the end effector during operation , the technical problem that the soft tissue is easily damaged by the teeth on the joint, and can achieve a more fine-tuned technical effect of adjusting the angle

Method used

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  • Improved locking mechanism on surgical instrument
  • Improved locking mechanism on surgical instrument
  • Improved locking mechanism on surgical instrument

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Embodiment Construction

[0023] Corresponding reference characters indicate corresponding parts throughout the several drawings. The present invention illustrates a preferred embodiment of the invention in one form, and such example should not be construed in any way as limiting the scope of the invention. It will be appreciated by those skilled in the art that the devices and methods described in detail herein and illustrated in the accompanying drawings are non-limiting exemplary embodiments and that the scope of various embodiments of the present invention is defined only by the claims. Features shown and described in one exemplary embodiment may be combined with features of other embodiments, and it is intended that such modifications and changes are included within the scope of the invention.

[0024] as attached figure 2 A schematic diagram of the appearance of a stapler with an articulating joint 1 is shown, including: an end effector 2, an elongated shaft 3, and a handle assembly 4;

[0025...

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Abstract

The invention provides an improved locking mechanism on a surgical instrument, and specifically relates to an improved locking mechanism on a knuckle joint on an anastomat. A knuckle structure betweenan anastomat end execution device and a slender shaft is improved. A locking plate with an arc groove and a locking rod with a slope are cooperated, through upper and lower inner surfaces of the arcgroove and the upper and lower inner surfaces of the locking rod, the locking mechanism clamps or contacts in a frictional manner, so that the locking mechanism has large locking moment, and a technical problem that a soft tissue in a conventional locking mechanism is easily damaged by teeth on a knuckle would not occur.

Description

technical field [0001] The invention relates to an improved locking mechanism on a surgical instrument, in particular to an improved locking mechanism on a joint of a stapler. Background technique [0002] It is known that in the prior art, the stapler is used as a medical device to replace the traditional manual suturing. It is easy to use, tight and suitable for tightness. In particular, it has the advantages of fast suturing, easy operation, and few side effects and surgical complications. It also enables tumor resection that was unresectable in the past, and is favored and respected by clinical surgeons at home and abroad. A surgical stapler, such as an endoscopic cutting stapler, may include an end effector that is movable or articulated relative to the elongate shaft assembly. End effectors are typically configured to hold tissue to be resected between clamping devices, wherein the clamping devices typically include structures configured to receive a staple cartridge ...

Claims

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Application Information

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IPC IPC(8): A61B17/072
CPCA61B17/072
Inventor 姚建清向长林
Owner SUZHOU FRANKENMAN MEDICAL EQUIP
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