Dual-edge resecting knife special for tendon sheath part

Abstract

The invention discloses a dual-edge resecting knife special for a tendon sheath part. The dual-edge resecting knife comprises a knife blade, a first knife edge, a second knife edge and a connecting end, wherein the first knife edge and the second knife edge are symmetrically arranged at the upper end of the knife blade; the connecting end is connected to the tail end of the knife blade; the working end of the first knife edge and the working end of the second knife edge face the head end of the knife blade; the knife blade adopts an arc groove structure; the structure of the first knife edge is the same as that of the second knife edge; and a mounting groove is formed in the connecting end. The dual-edge resecting knife disclosed by the invention is simple in structure; when the dual-edgeresecting knife cooperates with an original ordinary surgical knife handle to be used, a part of a tendon sheath is safely, quickly and effectively resected in one time, so that the problems that whenbeing used, an original surgical knife blade needs to be operated in a narrow space repeatedly, the difficulty is high, and a standard transverse incision is improperly resected into a wrong incisionin the shape similar to "++" are solved; besides, potential risk of tendon nerve blood vessel damage is eliminated; and medical disputes caused by cicatricial contracture and pain caused by wrong sawtooth-shaped incisions, and numbness, limitation of activity and the like caused by tendon nerve damage and adhesion are avoided.

Description

technical field [0001] The invention relates to the technical field of hand surgical scalpels, in particular to a double-edged tendon sheath partial excision knife. Background technique [0002] In the prior art, when removing part of the narrow tendon sheath of the hand, a common scalpel is used to make a transverse incision on the finger skin on the middle surface of the tendon sheath, incise the skin and subcutaneous area to expose the tendon sheath, and then use the scalpel to make a distal and proximal incision respectively. The narrow tendon sheath is incised longitudinally, and then the edge of the incised tendon sheath is clamped with vascular forceps, and the width of the tendon sheath is resected according to the need, and the distal and proximal longitudinal incisions are made once respectively to achieve the purpose of partial tendon sheath resection. Often due to the limited exposure of the small incision, the inexperience of the surgeon’s assistant, and the lon...

AI Technical Summary

Problems solved by technology

Often due to the limited exposure of the small incision, the inexperience of the surgeon’s assistant, and the long blade of the ordinary scalpel, two incisions are made sneakily in the limited field of view. The tendon sheath is cut longitudinally and the skin is also cut, so that the original design along the striae The horizontal standard incision becomes a "wrong" incision similar to the "ten ten" structure. The two resections are more troublesome and the operation is more difficult. At the same time, there are risks of tendon injury caused by longitudinal splitting of the tendon, increased adhesion, and accidental injury to the neurovascular bundle. Posterior incision scar pain, even contracture, recurrence of tendon adhesion compression, unsightly wound, and even medical disputes

Images