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Minimally invasive surgical propping-open device and propping-open device

A technique of minimally invasive surgery and rotational connection, which is applied in the fields of surgery, medical science, etc., can solve the problems of inconvenient operation, inability to effectively reduce the infiltration of muscle tissue and blood, and inability to accurately control the opening angle, so as to achieve convenient operation and improve surgical performance. High field of view and high accuracy

Pending Publication Date: 2019-10-29
SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the technical problems that the existing spreader is inconvenient to operate when establishing a spinal minimally invasive surgery channel, cannot effectively reduce the infiltration of muscle tissue and blood, and cannot accurately control the spread angle, and provides a convenient and easy-to-operate Minimally invasive surgical distraction device and spreader with low difficulty, accurate setting of distraction angle, convenient reset operation, and avoiding muscle tissue and blood infiltration

Method used

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  • Minimally invasive surgical propping-open device and propping-open device

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Embodiment Construction

[0041] Referring to the accompanying drawings, the present invention will be further described in detail with specific embodiments.

[0042] Such as figure 1 and 2 As shown, the minimally invasive surgery distraction device of the present invention includes an elastic sleeve 1 and a distraction cylinder assembly 2 , and the elastic sleeve 1 is sleeved on the cylindrical distraction part of the distraction cylinder assembly 2 .

[0043] Such as figure 2 and 3 As shown, the expansion cylinder assembly 2 includes a left expansion half cylinder 21, a right expansion half cylinder 22, a pin shaft 23, a front limit button 24, a rear limit button 25, a front return spring 26, a rear return spring 27, Front column pin 28, rear column pin 29, the upper end of left strut half cylinder 21 and the upper end of right strut half cylinder 22 are connected together by bearing pin 23 rotationally. figure 2 It is shown that when the left half-cylinder 21 and the right half-cylinder 22 are...

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Abstract

The invention relates to a minimally invasive surgical propping-open device and a propping-open device. The technical problems of inconvenient operation, the inability to effectively reduce infiltration of muscle tissues and blood, and the inability to accurately control the propping-open angle when existing propping-open devices establish minimally invasive spinal surgery channels are solved. Theminimally invasive surgical propping-open device includes an elastic sleeve and a propping-open cylinder assembly, the propping-open cylinder assembly is provided with a cylindrical propping-open part, the cylindrical propping-open part includes a left propping-open semicircular cylinder body and a right propping-open semicircular cylinder body which are rotatably connected together, and the elastic sleeve sleeves the cylindrical propping-open part. The minimally invasive surgical propping-open device and the propping-open device are widely used in the technical field of medical apparatus andinstruments.

Description

technical field [0001] The invention relates to the technical field of minimally invasive spinal surgery, in particular to a distraction device and a spreader for minimally invasive surgery. Background technique [0002] In the technical field of minimally invasive spinal surgery, minimally invasive spinal surgery has the advantages of small incision, less trauma, and quick recovery, which is the development trend of spinal surgery; For intervertebral disc decompression surgery, only a small channel is needed to open the surgical field of view and perform surgical operations. [0003] At present, the establishment of the spinal minimally invasive surgery channel is mainly carried out using tools such as a spreader or a single sleeve. When using the spreader, the incision on the skin surface needs to be cut large. After the spreader is put in, it is rotated to spread After the wrench is used, the retractor on the head of the spreader will expand, and the muscle tissue and bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/02
CPCA61B17/0206A61B17/0218A61B2017/0256
Inventor 丛轶王勤福李嘉星单玉瑶
Owner SHANDONG WEIGAO ORTHOPEDIC DEVICE COMPANY
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