SU946533A1 - Surgical instrument for intravascular operations - Google Patents

Description

(54J: SURGICAL INSTRUMENT FOR DOMESTIC: OPERATIONS

The invention relates to medical technology, in particular to surgical instruments for intravascular operations.

A tool is known that contains a raspator and a handle 1.

With the help of a well-known instrument, it is impossible to prevent injury to the valves of the venous valves during thrombosis.

The purpose of the invention is to prevent injury to venous clath pads when performing thrombectomy.

The goal is achieved by the fact that in a surgical instrument for intravascular operations containing a dispenser and a handle, the dispenser is made in the form of two spatial loops arranged in mutually perpendicular planes, one of which is working, made in the form of a closed ring and the other, a guide, is made open, connected by branches diametrically opposed to the rings of the working loop, with one of the branches of the guide loop being an extension of the handle, and its apex is placed outside the axis of the handle.

In this case, the plane of the working loop is inclined to the axis of the handle.

In addition, the tool is made of elastic wire.

Figure 1 shows a tool for intravascular operations; figure 2 is the same, side view; figure 3 is the same, top view.

Instrument for intravascular

10 operations contain the raspator and the handle 1. The rasphor is made in the form of two spatial loops 2 and 3, the ras. laid in mutually perpendicular planes, one of which 2,

5 working, made in the form of a closed ring, and the other 3, the guide, is made open, connected by branches diametrically opposite to the ring of the working loop 2, moreover

 One of the branches of the guide loop 3 is a continuation of the handle 1, and its top is placed outside the axis of the handle 1.

With the instrument carried out

25 thromborecticia operation. For this, in the proximal part of the thrombosed vein, longitudinal venotomy is performed. Using the handle 1, the working part of the tool is inserted into the lumen of the vein and advanced along the vein.

at the same time, the loop 3, as directed, is inserted between the flaps of the valve, rotates it, at the same time the flaps are moved apart and the ring 2 passes into the subvalvular departments without damaging the valves. Ring 2 separates the blood clot from the intima of the vein.

When removing the instrument, the detached venous thrombus is removed. Setting the ring at an angle to the handle allows the ring to be inserted gradually between the valve leaflets, which also reduces the possibility of injury.

The use of the proposed instrument allows thrombectomy without trauma to the venous cusps.

Claims (3)

1. A surgical instrument for intravascular operations, comprising a dissector and a handle, characterized in that, in order to prevent 25 to prevent injuries of the venous valves when performing thrombectomy, the raspator is made in the form of two spatial loops arranged in mutually perpendicular planes, one of which is working, made in the form of a closed ring, and the other guide is made open, connected by branches diametrically opposite to the working loop ring, one short-circuit of the legs of the guide loop I; is a continuation of the handle, and its top is placed outside the axis of the handle ..... - 2. The tool; Instrument according to claim 1, stating that the plane of the working loop is inclined to the ori arm. - .. . , 3. Tool-software p. 1, on t l ich and y and in order / that is made of elastic wire Sources of information taken into account in the examination 1. USSR Author's Certificate No. 175177, cl. A 61 B 17/32, 1963.