CN201067434Y - Slip-proof extracting device for broken retrograde locking intramedullary nail of thighbone - Google Patents

Abstract

The utility model discloses a femoral retrograde interlocking intramedullary nail snap and nail slipping preventing extractor, consisting of a thin steel tube (1), a handle (2) and a fixing inner tube (3); the utility model is characterized in that the front end wall of the thin steel tube (1) is provided with arc sheets (5) which are arranged with the same distance, an orifice at the front end of the thin steel tube (1) is inserted with a date core-shaped chock (6), the upper end of the date core-shaped chock (6) is provided with a through sliding hole (7) for ultrahigh molecular polyethylene fibers (9), a upper mouth of the thin steel tube (1) is sleeved on the outer wall of the fixing inner tube (3), the upper ends of the ultrahigh molecular polyethylene fibers (9) are fixed on the end of a hand compression handle (10), and the lower ends thereof pass through the through sliding hole (7) of the date core-shaped chock (6) and are upward fixed on the upper end edge of the thin steel tube (1) along a strip-shaped seam (8) on the wall of the fixing inner tube (3). The femoral retrograde interlocking intramedullary nail snap and nail slipping preventing extractor has simple structure, safe and convenient usage, and can pull the broken nail out smoothly without need of a major operation, thus the suffering of patients can be relieved.

Description

The anti-slip extractor of femur retrograde intramedullary interlocking broken nail

Technical field

This utility model relates to a kind of orthopaedic medical treatment utensil, the anti-slip extractor of particularly a kind of femur retrograde intramedullary interlocking broken nail.

Background technology

Complication rates such as along with the appearance of various traffic, industrial accident, Methods for Distal Femoral Fractures grows existing, and a kind of often serious damage, handles comparatively difficulty, and its nonunion, delayed union and knee joint function are limited are higher.Retrograde intramedullary interlocking is a kind of method for the treatment of Methods for Distal Femoral Fractures commonly used in recent years, has good mechanical stability, can effectively control the rear displacement and the rotation displacement of fracture far-end, helps axis to recover and keeps, and helps early stage joint motion.That this retrograde intramedullary interlocking has in operation is simple to operate, accurate positioning, fixing reliable advantage, but in present application, still have the possibility of broken nail, its rate of fractureing is 3/10000ths, and the problem that exists is at present, is difficult to behind the broken nail take out, the taking-up of generally will having an operation, employing is had an operation and is got the method for broken nail, and its wound is big, brings unnecessary misery to the patient; The utensil that employing stretching that also has or clamping broken nail tail end are outwards extracted, but, when outwards extracting, often cause extracting failure because of slippage because this broken nail is firm at the femur internal fixation.

Summary of the invention

It is a kind of after the femur retrograde intramedullary interlocking fractures that the purpose of this utility model is to provide, need not to have major operation, and once just can extract the anti-slip extractor of femur retrograde intramedullary interlocking broken nail of broken nail, and this extractor is simple in structure, rapid operation, safe in utilization.

For reaching above purpose, the technical scheme that this utility model adopted is: the anti-skidding extractor of this femur retrograde intramedullary interlocking broken nail, by fine steel tube, hand holding handle, pipe constitutes in fixing, hand holding handle is vertically fixed on the seat end of fixing interior pipe, it is characterized in that on the front bulkhead of fine steel tube, having the axial bar shaped seam of equidistant arrangement, adjacent axial bar shaped seam is divided into the front end mouth of pipe wall of fine steel tube the arc-like sheet of equidistant arrangement, in the front end mouth of pipe of fine steel tube, be plugged with the date core shaped chock, on the upper end of date core shaped chock, be provided with the filametntary slide opening that passes of ultra high molecular polyethylene, the suitable for reading of fine steel tube is enclosed within on the outer wall of fixing interior pipe, in fixing, have the bar shaped seam on the wall of pipe, the filametntary upper end of ultra high molecular polyethylene is fixed on the end of hand pressure handle, the slide opening that passes that the date core shaped chock is passed in the filametntary lower end of ultra high molecular polyethylene stitches along the bar shaped on the fixing inner tubal wall and upwards is fixed on the edge, upper end of fine steel tube, when holding when starting pressure handle, move on the ultra high molecular polyethylene cellosilk pulling date core shaped chock, spurring fine steel tube simultaneously moves down in opposite directions, outwards the stretching fine steel tube front end mouth of pipe is first-class to the arc-like sheet of arranging, the arc-like sheet of equidistant arrangement is outwards expanded, thereby chucking broken nail mouth, anti-sliding stop is fixed as one with broken nail.This utility model is also implemented by following measure: sheathed spring on the outer wall of pipe in fixing, and the lower end of spring withstands on the upper edge of fine steel tube, on the ring platform of upper end base pipe in fixing; The overall diameter of described fine steel tube is consistent with the interior diameter of the retrograde intramedullary nail with nail of femur; The ultra high molecular polyethylene fiber is a kind of high strength fibre, is mainly used in to make flak jackets usefulness, and its intensity is 16 times of steel wire, therefore, can accomplish that diameter is very thin, and it is little to take up room.When using this utility model, open an aperture, this utility model is inserted in the tube chamber of broken nail at the broken ends of fractured bone correspondence position of broken nail, start pressure handle by holding, the arc-like sheet of fine steel tube front end outwards supports, and moves in opposite directions with Semen Jujubae type chock, make it be fastened on the broken nail intracavity, then can extract broken needle this moment.

The beneficial effects of the utility model are: simple in structure, safe and convenient to use, and need not to have major operation and just can extract broken nail smoothly, alleviated patient's misery.

Description of drawings

Fig. 1 looks enlarged diagram for this utility model structure master.

Fig. 2 analyses and observe enlarged diagram for this utility model along axis.

The specific embodiment

Make this utility model with reference to accompanying drawing 1,2.The anti-skidding extractor of this femur retrograde intramedullary interlocking broken nail, by fine steel tube 1, hand holding handle 2, pipe 3 constitutes in fixing, hand holding handle 2 is vertically fixed on the seat end of fixing interior pipe 3, it is characterized in that on the front bulkhead of fine steel tube 1, having the axial bar shaped seam 4 of equidistant arrangement, adjacent axial bar shaped seam 4 is divided into the front end mouth of pipe wall of fine steel tube 1 arc-like sheet 5 of equidistant arrangement, in the front end mouth of pipe of fine steel tube 1, be plugged with date core shaped chock 6, what be provided with ultra high molecular polyethylene cellosilk 9 on the upper end of date core shaped chock 6 passes slide opening 7, the suitable for reading of fine steel tube 1 is enclosed within on the outer wall of fixing interior pipe 3, in fixing, have bar shaped seam 8 on the pipe 3 forward walls, the upper end of ultra high molecular polyethylene cellosilk 9 is fixed on the end of hand pressure handle 10, and the slide opening 7 that passes that date core shaped chock 6 is passed in the lower end of ultra high molecular polyethylene cellosilk 9 upwards is fixed on the edge, upper end of fine steel tube 1 along the bar shaped seam 8 on fixing interior pipe 3 walls.Sheathed spring 11 on the outer wall of pipe 3 in fixing, the lower end of spring 11 withstands on the upper edge of fine steel tube 1, on the ring platform of upper end base pipe 3 in fixing; The overall diameter of described fine steel tube 1 is consistent with the interior diameter of femur intramedullary nail with nail.

Claims (2)

1. anti-skidding extractor of femur retrograde intramedullary interlocking broken nail, by fine steel tube (1), hand holding handle (2), pipe (3) constitutes in fixing, hand holding handle (2) is vertically fixed on the seat end of fixing interior pipe (3), it is characterized in that on the front bulkhead of fine steel tube (1), having the axial bar shaped seam (4) of equidistant arrangement, adjacent axial bar shaped seam (4) is divided into the front end mouth of pipe wall of fine steel tube (1) arc-like sheet (5) of equidistant arrangement, in the front end mouth of pipe of fine steel tube (1), be plugged with date core shaped chock (6), what be provided with ultra high molecular polyethylene cellosilk (9) on the upper end of date core shaped chock (6) passes slide opening (7), the suitable for reading of fine steel tube (1) is enclosed within on the outer wall of fixing interior pipe (3), in fixing, have bar shaped seam (8) on pipe (3) forward wall, the upper end of ultra high molecular polyethylene cellosilk (9) is fixed on the end of hand pressure handle (10), and the slide opening (7) that passes that date core shaped chock (6) is passed in the lower end of ultra high molecular polyethylene cellosilk (9) upwards is fixed on the edge, upper end of fine steel tube (1) along the bar shaped seam (8) on fixing interior pipe (3) wall.

2. the anti-skidding extractor of femur retrograde intramedullary interlocking broken nail according to claim 1, it is characterized in that in fixing, managing sheathed spring (11) on the outer wall of (3), the lower end of spring (11) withstands on the upper edge of fine steel tube (1), on the ring platform of upper end base pipe (3) in fixing.

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