CN2306758Y - Osseous pin - Google Patents

Abstract

The utility model relates to an osseous pin, belonging to osseous pinthe fixed in bones. Both ends of a pin body (2) are all pin tips (1), and the surface of the pin body (2) is provided with a protrusion or a groove in axial direction. When the osseous pin is penetrated out with retrograde motion in the operation, the osseous pin can be conveniently beaten in opposite direction. The cutting off two sections are respectively provided with a pin tip which can be used. Besides, the rigidity of the osseous pin and the stability of the fracture fixation can be enhanced by the surface having the protrusion or the groove in axial direction.

Description

A kind of novel osseous pin

This utility model belongs to a kind of medical orthopaedics equipment, particularly relates to a kind of osseous pin of bone internal fixation.

In bone surgery, osseous pin is the bone fracture internal fixing device material of using always.Osseous pin comprises that diameter is less than 1.5 millimeters Ke Shi (Kirschner) pin be coarser than Si Shi (Steinmann) pin of this diameter.Need place during use in the bone, cross over fracture line, play fixation.A lot of situations are arranged in the art, need to drive in the wrong direction and squeeze into, that is: driving in the wrong direction from fracture end one side earlier passes, and after the reduction of the fracture, is driven in the opposite side fractured bones to returning in the other direction again.Normally used osseous pin has a needle point, and the other end is the afterbody of tack, therefore, when squeezing into, if pulp cavity is more shallow or do not have pulp cavity, then squeezes into very difficulty in the other direction in the other direction after retrograde passing again.In addition, according to the actual needs of operation, the osseous pin of clip suitable length, for the osseous pin that has only a needle point, one section of the afterbody of so cutting is unrenewable, have to go out of use.In addition, because its surface of osseous pin of generally adopting is slick and sly at present, so be difficult for clamping and fixing, the easy bending of postoperative in the art in the art.

The purpose of this utility model is to provide a kind of novel osseous pin, is convenient to squeeze in the other direction in the art, and being cut off the two ends, back all has use value, and wishes to improve its rigidity and fixed stability by changing its surface configuration.

This novel osseous pin has needle body (2) and needle point (1), it is characterized in that, the two ends of needle body (2) are needle point (1); There is projection or groove vertically on the surface of needle body (2).

Because two ends of the present utility model are needle point, therefore in art, after retrograde the passing, can squeeze into to opposite direction easily.And two sections after quilt is cut off respectively have a needle point, all can utilize.The surface that has axial projection or groove is improved the rigidity of osseous pin and the stability that is used for fracture fixation.

Fig. 1, novel osseous pin outline drawing;

Fig. 2, novel osseous pin needle body sectional view.

As shown in Figure 1, novel osseous pin has needle body (2), and the two ends of needle body (2) are needle point (1).In addition, can there be projection or groove vertically on the surface of this novel osseous pin needle body (2), and its cross section so can strengthen the rigidity of needle body and the stability of fracture fixation as shown in Figure 2, and is convenient to pliers or bone drill clamping.

Claims (1)

1. A kind of novel osseous pin has needle body (2) and needle point (1), it is characterized in that, the two ends of needle body (2) are needle point (1); There is projection or groove vertically on the surface of needle body (2).