SU167007A1 - TOOL KIT FOR DOMESTIC PROSTHESIS - Google Patents

Description

WG are known instruments for intra-articular prosthetics, including a hip joint that contains a scan of the medullary canal, immersions, and guides.

 The proposed set differs from those known in that, in order to increase the strength of fixation of the prosthesis and protect soft tissues from damage during the operation, the tools included in the set have working surfaces that exactly correspond to the configuration of those parts of the prosthesis that they affect. The sweep is made with a bezel with a conical working part, the dimensions of which correspond to the dimensions of the pin of the prosthesis. Loaders are made in the form of rods with a working part. The guide is made in the form of a trough-shaped mirror with a curvature corresponding to the curvature of the prosthesis socket.

FIG. 1 shows a schematic scan (general view); in fig. 2 - submersible c. fork-shaped working part; pas figs. 3 - rigger with shoulders on the working end; in fig. 4 - a guide in two projections.

The sweep is designed to prepare the bone marrow drip under the pin of the hip joint prosthesis.

uiecTb cutting edges are applied with cutting angles of 85 °. The working part of the sweep in shape and size exactly matches the shape and size of the prosthetic teeth, driven into

bone-marrowy thigh channel. For the convenience of holding the tool and working with it, there is a massive handle 2 at the upper end of the sweep. The sweep is inserted into the bone-marrow channel of the thigh and screwed into the entire length

the working part, prepared a place for the prosthetic stem.

The loader intended to drive the hub of the prosthesis of the joint into the formed acetabulum (Fig. 2) contains a working part 5, made in the form of an arch, corresponding to the configuration of the nest of the prosthesis. The working part of the tool passes into a cylindrical rod 4, ending with a handle 5, the upper end of which has

hemispherical impact pad 6. The working part of the submersible is installed at the base of the hinge and along the rio of the flat surface of the prosthesis socket. The nest of the prosthesis is hammered into the acetabular ppadnpa by hitting the hammer on the impact pad 6 of the instrument.

A loader intended to drive the pin of the prosthesis into the bone-brain cial femur (. 3) contains a tubular platform with shoulders 8. The shape and dimensions of the platform with shoulders exactly match the shape of the end portion of the prosthesis. In the housing 7, a rod 9 is movably mounted, provided at the upper end with a hemispherical impact pad 10. There is a longitudinal groove in the rod, which includes a locking screw 12 passing through the bearing stop 13 of the housing. When driving the denture propeller with a plunger, the tool is mounted with the shoulders on the end portion of the prosthesis. Since the shapes and sizes of the end part of the prosthesis correspond to the shoulders, the longitudinal axes of the pin of the prosthesis and the tool are the same. Shtkft hammer hammer blows on the percussion platform plunger.

The donor (Fig. 4) is intended to set the prosthesis socket into the acetabulum and has a working part made in the form of a metal groove-shaped mirror 14 with a radius of curvature equal to the radius of the prosthesis socket. The mirror through the transitional curved part 15 is connected to the handle 16. When working with the guide, the mirror of the instrument is installed at the upper edge again.

formed by the acetabulum. The socket of the prosthesis is placed in the chute of the mirror and inserted into the acetabulum.

Subject invention

A set of tools for intra-articular prosthetics, for example, a hip joint, containing a scan of the medullary canal, immersions and a guide, characterized in that, in order to increase the strength of fixation of the prosthesis and protect soft tissues from damage by sequentially using all the instruments of the kit when performing this operation , its sweep is made by a molded tube, with a conical working part that exactly corresponds to the size of the prosthesis pin, the immersions are made in the form of rods with the working part, exactly corresponding configuration I1 of those parts of the prosthesis, on which they act, the guide is made in the form of a trough-shaped mirror with a curvature corresponding to

nest prosthesis.

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FIG. 2

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