2results about How to "Reduced surgical steps" patented technology

The present application relates to the technical field of surgical knives, and discloses a trabeculectomy knife with adjustable knife distance, which comprises a knife handle, a knife rod connected with the knife handle, and a knife head connected at the end of the knife rod, wherein the knife head is boat-shaped, has a knife tip and two side edges, the rear sections of the two side edges are connected and the front ends thereof meet at the knife tip, the knife head has a concave cavity, the concave cavity is provided with a chevron-shaped gap for separating the knife tip, a pair of parallel first sliding grooves are arranged in the side wall of the concave cavity, an arc-shaped plate is slidably arranged in the first sliding grooves, and the two parallel edges of the arc-shaped plate are respectively clamped in the two first sliding grooves. The trabeculectomy knife can realize mode switching of the knife head and width adjustment of the side edges by single-handed holding, the big thumb can accurately control power transmission by rotating the knob, the friction fit of the threaded transmission and the wedge structure ensures smooth movement without slipping, and the operation difficulty is reduced without the need for additional instrument assistance or double-handed operation.

This utility model relates to a metal bone needle with an openable hole and a chip-dispersing groove, comprising a metal bone needle body and an opening / closing spring. The metal bone needle body includes a cylindrical needle body and a needle tip. A threading notch or two threading notches are provided on the side of the needle body near the needle tip. An upper arc-shaped groove and a lower arc-shaped groove are respectively provided at both ends of the threading notch. A baffle is provided at the edge of the upper arc-shaped groove, and a connecting hole is provided in the lower arc-shaped groove. The opening / closing spring includes an opening / closing piece, an arc-shaped piece, and a connecting piece. One end of the arc-shaped piece is connected to the opening / closing piece, and the other end of the arc-shaped piece is connected to the connecting piece. The arc-shaped piece engages in the lower arc-shaped groove, the connecting piece is inserted into the connecting hole, and the other end of the opening / closing piece presses against the inner side of the baffle in the upper arc-shaped groove. Three or four edges are evenly distributed on the side of the needle tip, and chip-dispersing grooves are provided between adjacent edges. The advantage is that it solves the technical problem that existing needle holes cannot be opened, making it difficult to insert double-stranded sutures.