MD2949G2 - Otorhinolaryngologic surgical instrument - Google Patents

Abstract

The invention refers to medicine, namely to otorhinolaryngology and medical engineering, and may be used for ligament removal.The surgical instrument contains a longitudinal tubular body (1). To one end of the body (1) there are fixed immovably a handle (2) and articulately another handle (3), made as a bell-crank. On other end of the body (1) there is made a cut-out and in the plane parallel to the body axis there is fixed a bearing element (4). The cutting element (5) is rigidly fixed onto one end of the holder (6), made, for example, as a plate or bar, the other end of which is articulately fixed onto the body (1). The edge of the stopper element (4) is placed in a plane parallel to the longitudinal axis of the body (1), and the configuration of edges of the cutting (5) and bearing (4) elements is made triangular-shaped with rounded angles. Into the body (1) there is placed an elastic rod (7), joining the free arm (8) of the handle (3) and the holder (6) of the cutting element (5). The body (1) of the surgical instrument is made bent at an angle of 30…50° with its longitudinal axis. When breaking the handles (2) and (3), the rod (7) lifts the cutting element (5), the holder (6) of which rests on the cut-out (9) of the body (1). When joining the handles (2) and (3), the rod (7), fixed onto the free arm (8) of the handle (3), displaces and acts on the holder (6), and correspondingly also on the cutting element (5), entering into the bearing element (4). At the same time there takes place catching, constriction and resection of the ligament sector.