A device and method for forming one-way or two-way barbs on sutures

Abstract

The invention discloses a device for forming one-way or two-way barbs on a suture thread, comprising: a thread supply assembly, which provides a suture thread raw material thread and positions the suture thread; a cutting mechanism, which forms a barb on the suture thread raw material thread One-way or two-way barbs; turning mechanism to adjust the circumferential angle of the cutting mechanism; finished wire removal mechanism to remove the processed wire. With the device of the present invention, the cutting mechanism can be used to quickly and accurately obtain suture products with one-way or two-way barbs; the turning mechanism can be used to process barbs at different circumferential positions, and various types of sutures can be obtained quickly and efficiently. Suture product in barb layout. When the present invention performs barb processing on the suture thread, the cutting mechanism mainly moves, and the suture thread only moves slightly in the axial direction, and the machining accuracy is easier to control. The cutting depth of the blade can be precisely controlled through the linear drive assembly, and at the same time, the Processing of barbs of different depths.

Description

technical field [0001] The invention designs a device for processing sutures, and in particular relates to a device for forming one-way or two-way barbs on the sutures. Background technique [0002] Suture thread is widely used in the suturing of the wound of operation and trauma, and one end of suture thread is tied on the surgical needle, and surgical needle pulls suture thread through tissue to make wound suturing and tissue fixed connection together to heal and regenerate, and at present Most sutures need to be tied with one or more knots to fix the sutures. Knotting increases the operation time and has a serious impact on some operations. For cosmetic surgery, laparoscopy and endoscopic examination, general sutures are difficult competent. [0003] The unidirectional barbed suture has multiple axially spaced barbs in a single direction on the outside of the suture. The surgical needle pulls the unidirectional barbed suture through the tissue in one direction, but the t...

AI Technical Summary

Problems solved by technology

[0005] The existing method of forming barbs on sutures has low cutting efficiency, and most of them adopt a roller routing structure. The rollers press over the barbs, resulting in deformation of the cut barbs, which affects product quality. Pneumatic cutting devices are used. The structure and cutting depth cannot be guaranteed, and the product quality cannot be guaranteed; most of the moving mechanisms of the existing equipment need to be oiled, and the grease will be thrown onto the wire during the movement, which will affect the quality of the wire; the cutting angle and cutting depth of the existing equipment are difficult to adjust, and most of them only One type of wire can be produced, but stability and diversity are difficult to guarantee, so a device that is more efficient, capable of producing multiple types, and economically forming one-way or two-way barbs is needed

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