RU47211U1 - CONDUCTOR FOR INTRAMEDOLLARY SPOKES - Google Patents

Abstract

The utility model is aimed at improving the manufacturability of the introduction of intramedullary curved knitting needles. The indicated result is achieved by the fact that the conductor for introducing intramedullary spokes is represented by the working part in the form of a radially curved rod equipped with a rectangular groove on the concave side having radius outputs at both ends and a handle.

Description

The utility model relates to medical equipment used in traumatology and orthopedics, namely to surgical instruments and devices intended for the treatment of the musculoskeletal system.

Known bimetallic needle used in traumatology and orthopedics, which contains a rod with a groove or two grooves to accommodate a flexible rod, equipped (s) on both sides with radius outputs (Patent No. 2211002, RF, Publish. 16.07.2001, Bull. 24 )

However, the known bimetallic knitting needle is not intended for directed introduction of intramedullary spokes into the medullary canal of long tubular bones due to the straightness of the axis of the rod with the groove.

The objective of the utility model is to develop a conductor that allows directional tunneling in the spongy substance of the metaphysis of long tubular bones and introduces the intramedullary curved knitting needles into the medullary canal.

The task is achieved in that the rod of the conductor is bent, while along its axis there is a groove located on the concave side of the rod, in addition, the rod is equipped with a handle.

The proposed utility model is explained in a detailed description and diagrams in which:

Figure 1 - shows a technical drawing,

Figure 2 - shows a cross section of a conductor rod with a spoke inserted into its groove.

The conductor for introducing intramedullary spokes into long tubular bones is made in the form of a curved rod 1 (Fig. 1) with a bend radius of 16 cm connected to the handle 2. On the concave side of the rod 1 there is a longitudinal groove 3, the cross section of which is a straight line

angle (Figure 2). At both ends, groove 3 is equipped with radius outputs 4 and 5. An intramedullary spoke 6 is located in groove 3 (FIG. 2).

A conductor for introducing intramedullary spokes into long tubular bones is used as follows.

Through a skin incision about 1 cm long above the site of the proposed introduction of the intramedullary needle, a hole in the cortical layer of the bone is created using a trocar with a diameter of 4-5 mm or a drill of the same diameter. Then, the conductor rod 1 is introduced into this hole and, as a result of the bending of its working part 1, directional tunneling in the spongy substance of the metaphysis is performed until it penetrates into the medullary canal.

Further, sliding the surface of the previously curved intramedullary needle 6 along the groove 3 on the concave side of the rod of the working part of the instrument, with the help of the hand directed along the axis of the intramedullary needle 6, it is inserted into the medullary canal. Then the conductor is removed by applying force to the handle 2.

The proposed utility model allows you to enter the intramedullary pre-bent knitting needles in a strictly directional way, without changing the previously created curvature of the bending of the knitting needles, which allows to reduce the lead time by 2-3 times and to exclude trauma to soft tissues located above the hole in the bone.

Claims (1)

The conductor for introducing intramedullary spokes contains a rod provided with a groove with radial exits at both ends and a pointed working end, characterized in that the rod is curved, while along its axis there is a groove located on the concave side of the rod, in addition, the rod is equipped with a handle.