Arthroscopic auxiliary traction apparatus

Abstract

The invention discloses an arthroscopic auxiliary traction apparatus, which comprises a main body, a driving device and a supporting structure, wherein the main body comprises a front end and a tail end; the driving device comprises a driving piece; the driving piece is connected to the main body and the driving piece is suitable for reciprocally moving in an extension direction of the main body; the driving piece has a first position and a second position; a relative motion between the driving piece and the main body, in a direction perpendicular to the main body, is zero; the supporting structure is rotatably arranged at the front end of the main body, so that the supporting structure is rotated along with the moving of the driving piece, wherein when the driving piece is located at the first position, the supporting structure keeps a first angle with the extension direction of the main body, and when the driving piece is located at the second position, the supporting structure keeps a second angle with the extension direction of the main body; and the supporting structure can be expanded by any angle between the first angle and the second angle.

Description

technical field [0001] The invention relates to the medical field, in particular to an arthroscopic auxiliary retractor for surgery. Background technique [0002] Arthroscopy is a minimally invasive surgical method for the diagnosis and treatment of bone and joint diseases. During arthroscopic surgery, in order to prevent the muscle or fat tissue at the joint from blocking the surgical field of view, a traction device is usually used in conjunction with it. For example, in some arthroscopic operations on the shoulder joint, the arthroscope needs to pass through the deltoid muscle and fat tissue of the shoulder and enter the body. At this time, the deltoid muscle of the shoulder needs to be stretched in order to widen the surgical field of view. In addition to the shoulder joint, when performing arthroscopic surgery on other parts such as the knee joint, there will also be problems with muscles or tissues blocking the view, so a stretching device is used. [0003] The arthr...

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Problems solved by technology

[0004] Although this arthroscopic auxiliary retractor can achieve the function of pulling muscles, its existing problem is that, on the one hand, because its expandable structure is a plastic product, its molding process is relatively complicated, and the medical device The performance requirements of the materials used are also relatively high, so the cost of raw materials and processing is relatively high

And because plastic products are prone to damage or performance degradation under high-temperature sterilization conditions, such auxiliary retractors under arthroscopy are usually disposable, which further increases the cost of equipment and patients' operation costs; on the other hand, this During the use of this arthroscopic auxiliary retractor, it can only realize the transition between the initial state and the expanded state, and the expansion angle of its expandable structure cannot be precisely controlled, which also limits the expansion to a certain extent. The use of auxiliary retractors under arthroscopic

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