CN201631355U

CN201631355U - Reduction, aiming and fixing apparatus for femoral lesser trochanter

Info

Publication number: CN201631355U
Application number: CN2010201376122U
Authority: CN
Inventors: 李福如
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-18
Filing date: 2010-03-18
Publication date: 2010-11-17
Anticipated expiration: 2020-03-18

Abstract

The utility model relates to a medical apparatus, in particular to a reduction, aiming and fixing apparatus for femoral lesser trochanter, which comprises a bow-shaped handle and a sleeve bolt and is characterized in that the front end of the bow-shaped handle is a broad flat arc-shaped reduction hook; the radian of the reduction hook is the same as that of the circumference of the femur; the rear end of the bow-shaped handle is provided with a nut matching with the sleeve bolt; the reduction hook is provided with a small hole which is concentric with the nut at the rear end of the bow-shaped handle; and the sleeve bolt is provided with an inner hole for normal insertion of a screw or a hollow nail and a small sleeve. By applying the utility model, the reduction, aiming and fixing can be completed at one time, the purpose of aiming and fixing the lesser trochanter can be achieved no matter how the position of the nail point at the outer side changes, the connecting part of the reduction hook and the bow-shaped handle is of a linear transitional structure rather than a bow-shaped structure, so that the reduction is not influenced as the inner muscular tissues cannot be pressed during reduction, the sleeve bolt can be quickly screwed in owing to the coarse thread, the outer cortices of the femur can be withstood due to the zigzag structure at the front end, and the sliding among the cortices can be prevented.

Description

The lesser trochanter of femur aiming holder that resets

Technical field

This utility model relates to a kind of medical apparatus and instruments, specifically a kind of lesser trochanter of femur aiming holder that resets.

Background technology

Fracture of the lesser trochanter, because iliopsoas tractive major part all will be shifted, lesser trochanter is positioned at behind the proximal femur inboard, and the position is dark and hidden, and fixing comparatively difficulty resets.Fix relatively difficulty owing to reset, the clinician often abandons resetting of lesser trochanter fracture and fixing, causes the lesser trochanter of displacement to form a large amount of callus and cicatrix on every side, influences union of fracture, causes patient's pain, bends the hip function limitation.At present, also there is not a kind of fixing trochantinian medical apparatus and instruments that can reset.

Summary of the invention

The purpose of this utility model provides a kind of lesser trochanter of femur aiming holder that resets.Its application can reach and reset that aiming is fixing to be finished together, how to change and can both reach the fixing trochantinian purpose of aiming no matter a nail point position is gone in the outside.

This utility model is made up of bow, sleeve bolt, it is characterized in that the bow front end is that flat wide arc resets and colludes, the radian that colludes of resetting is identical with the radian of femur Zhou Jing, there is the nut supporting with sleeve bolt the bow rear end, reset and colluded an aperture, aperture is concentric with the nut of bow rear end, and sleeve bolt has can make the normal endoporus that inserts of screw or hollow nail and small sleeve.

The front end of above-mentioned sleeve bolt is a laciniation.

The internal diameter of the small sleeve that inserts in the above-mentioned sleeve bolt endoporus is slightly larger than outside diameter.

The screw thread of end nut is a coarse-pitch thread behind above-mentioned sleeve bolt and the bow.

Above-mentioned reset that to collude the part that is connected with bow be straight shape transition structure.

This utility model has following advantage compared with prior art:

1. because the bow front end is flat wide arc resets and collude, the radian that colludes of resetting is identical with the radian of femur Zhou Jing, can catch on lesser trochanter easily, and lesser trochanter is resetted.

2. because handle is thicker, make the hands can secure grip, be convenient to reset; Resetting, to collude the part that is connected with bow be straight shape transition structure, rather than bow-shaped structural, can roof pressure musculus lateralis interni meat tissue when resetting and influence and reset.

3. so the screw thread of end nut is that coarse-pitch thread can be screwed into fast behind sleeve bolt and the bow, front end is that laciniation can withstand lateral side of femur cortex, prevent and femoral cortex between produce to slide.

4. small sleeve can retrain the direction that pierces of drill bit, drill bit is accurately aimed at pierce.

5. owing to reset that to collude aperture concentric with the nut of bow rear end, thus though the going into to follow closely and put a position and how to change of lateral side of femur cortex, the screw that pierces aims at lesser trochanter all the time and fixes.

Description of drawings

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the structural representation of bow,

Fig. 3 is the A-A profile of Fig. 2,

Fig. 4 is the B-B profile of Fig. 2,

Fig. 5 is the structural representation of sleeve bolt,

Fig. 6 is the right view of Fig. 5,

Fig. 7 is the structural representation of small sleeve,

Fig. 8 is the left view of Fig. 7.

Among the figure: the 1-bow; 2-resets and colludes; The 3-nut; The 4-sleeve bolt; The 5-small sleeve.

The specific embodiment

Further specify this utility model below in conjunction with accompanying drawing.

This utility model is made up of bow 1, sleeve bolt 4, bow 1 front end is that flat wide arc resets and colludes 2, resetting, it is identical with the radian of femur Zhou Jing to collude 2 radian, there is the nut 3 supporting with sleeve bolt 4 bow 1 rear end, reset to collude an aperture is arranged on 2, aperture is concentric with the nut 3 of bow 1 rear end, and sleeve bolt 4 has can make screw or hollow nail and the small sleeve 5 normal endoporus that insert.

The front end of sleeve bolt 4 is a laciniation, can withstand lateral side of femur cortex, prevent and femoral cortex between produce to slide.

The internal diameter of the small sleeve 5 that inserts in sleeve bolt 4 endoporus is slightly larger than outside diameter; In order to hold conveniently, there is a flat garden medicated cap small sleeve rear end.

Sleeve bolt 4 is a coarse-pitch thread with the screw thread of bow 1 back end nut 3, can be screwed into fast.

Resetting, to collude 2 parts that are connected with bow 1 are straight shape transition structures, rather than bow-shaped structural, can roof pressure musculus lateralis interni meat tissue when resetting and influence and reset.

Using method:

Holding bow resets and colludes at the inboard arc that inserts of lesser trochanter, catching on lesser trochanter resets, after the reduction of the fracture, in end nut behind the sleeve bolt screw-in bow, twist sleeve bolt up to roof pressure lateral side of femur cortex, small sleeve is inserted sleeve bolt, inserting drill bit in small sleeve holes, drill bit pierces through lesser trochanter to arc and resets and collude aperture, takes out small sleeve, directly is screwed into screw or hollow nail; Take out the lesser trochanter of femur aiming holder that resets.

Claims

1. lesser trochanter of femur aiming holder that resets, form by bow, sleeve bolt, it is characterized in that the bow front end is that flat wide arc resets and colludes, the radian that colludes of resetting is identical with the radian of femur Zhou Jing, there is the nut supporting with sleeve bolt the bow rear end, reset and colluded an aperture, aperture is concentric with the nut of bow rear end, and sleeve bolt has can make the normal endoporus that inserts of screw or hollow nail and small sleeve.

2. the lesser trochanter of femur as claimed in claim 1 aiming holder that resets, the front end that it is characterized in that described sleeve bolt is a laciniation.

3. the lesser trochanter of femur as claimed in claim 1 aiming holder that resets is characterized in that the internal diameter of the small sleeve that inserts in the described sleeve bolt endoporus is slightly larger than outside diameter.

4. the lesser trochanter of femur as claimed in claim 1 aiming holder that resets is characterized in that the screw thread of end nut is a coarse-pitch thread behind described sleeve bolt and the bow.

5. the lesser trochanter of femur as claimed in claim 1 aiming holder that resets is characterized in that describedly resetting that to collude the part that is connected with bow be straight shape transition structure.