CN2446961Y

CN2446961Y - Reduction fixator for fracture of pelvis

Info

Publication number: CN2446961Y
Application number: CN 00250347
Authority: CN
Inventors: 周俊清; 石文元
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-01
Filing date: 2000-09-01
Publication date: 2001-09-12
Anticipated expiration: 2010-09-01

Abstract

The utility model relates to a pelvis reset fixer, which comprises two side fixing plates, a spiral rod which is provided with a positive spiral buckle and a negative spiral buckle, a plurality of fixing clamps, and a plurality of steel needles, wherein, the two side fixing plates are respectively and vertically fixed onto both ends of the spiral rod. The utility model is characterized in that the pelvis reset fixer also comprises at least two studs or at least two wound retractors; one end of each stud is a big stub end, the top surface of which can inwards form a curved concave surface provided with a small tip stud-shaped skid-proof tip which is perpendicular to the curved concave surface, and the other end of the stud is fixed onto the side fixing plates. One end of each wound retractor can form a bend wound, the internal side of which can form the small tip stud-shaped skid-proof tip, and the other end is fixed onto a side fixing plate. By using the utility model, the utility model can be used to carry out dynamic pressurizing to make the metathetic pelvis reset and the fragmented pelvis heal and grow.

Description

The pelvis-repositioning holder

This utility model relates to medical apparatus and instruments, refers to especially that a kind of orthopaedics resets to use holder, particularly a kind of external pelvis-repositioning fixer.

Known, it is fixing to do to reset when the people causes pelvis to be shifted because of accidents such as accidental falls or collisions or be cracked, the way that existing pelvis external fixator all adopts ilium to thread a needle.Its shortcoming is:

(1) constant intensity is poor, moves easily.

(2) certain technical difficulty of threading a needle.

(3) dynamically pressurize or when retracting hold-down bars be shifted easily, need to adjust again, thus general adopt manual reduction after, go fixed method again, need repeatedly adjustment repeatedly, cumbersome, the suffered misery of patient is bigger.

The purpose of this utility model is improved at the defective of existing pelvis-repositioning holder, and then a kind of pelvis-repositioning holder is provided, and uses it can reach the effect of using the dynamic pressurization of apparatus to make displacement pelvis-repositioning, cracked pelvis healing growth fully.

The purpose of this utility model is achieved in that

A kind of pelvis-repositioning holder, comprise two side fixing heads, a spiral shell rod with positive and negative spiral shell button, several fixation clamps, several draw points, two side fixing heads are vertically fixed on the two ends of spiral shell rod respectively, it is characterized in that also comprising at least two studs or at least two hook retractors, one end of stud is a stub end, and the end face of this stub end inwardly forms the arc concave surface, forms the anti-skidding point of little spike shape perpendicular to this arc concave surface in this arc concave surface; The other end of stud is fixed on the side fixing head; Hook retractor one end forms crotch, and the crotch inboard is formed with the anti-skidding point of little spike shape, and end is fixed on the side fixing head in addition.

The plane, end top of the stub end of described stud becomes 15～20 degree angles with the vertical plane of nail body.

The crotch of described hook retractor and hook body are 105～110 degree angles.

Clearly, this utility model mainly is to change employed locking pin in the pelvis holder into stud, the hook retractor that retracts effect that pressurization resets, by the effect that both and ilium inner and outer plates play pressurization respectively, retract, its advantage mainly contain following some:

(1) constant intensity height, stud, hook retractor and ilium profile adapt, and contact area is big, so the constant intensity height.

(2) far-end has the anti-skidding point of a little spike shape to enter sclerotin, and all the other are not for to enter sclerotin with the muscle contact surface, thereby the maintenance processing ease.

(3) for the patient of turning up in the ilium, operation technique is control nail or hook, makes the two maintenance motionless, adding the pressure bar position does not change, can reach fully and use apparatus dynamically to pressurize, two locking pins handles of reuse add pressure bar and ilium is fixed aforesaid operations is finished after, fixedly secure thereby reach.

Further describe this utility model below in conjunction with accompanying drawing for embodiment.

Fig. 1 makes the enforcement illustration that the pelvis pressurization resets for using this utility model.

Fig. 2 retracts the enforcement illustration that resets for using this utility model as pelvis.

Fig. 3 is the three-dimensional shape sketch map of the stud in this utility model.

Fig. 3-1 is the side view of Fig. 3.

Fig. 3-2 is the vertical view of Fig. 3-1.

Fig. 4 is the three-dimensional shape sketch map of the hook retractor in this utility model.

Shown in each accompanying drawing, a kind of pelvis-repositioning holder of this utility model, comprise two side fixing heads 11,11 ', spiral shell rod 12 with positive and negative spiral shell button, several fixation clamps 13, several draw points 14, two side fixing heads 11,11 ' is vertically fixed on the two ends of spiral shell rod 12 respectively, feature of the present utility model is to change original locking pin at least two studs 15 or at least two hook retractors 16 (Fig. 2), one end of stud 15 is stub end 151 (referring to Fig. 3 to Fig. 3-2), the end face of this stub end inwardly forms arc concave surface 1511, the plane, end top of the stub end of stud becomes 20 degree angles with the vertical plane of nail body, forms the little spike shape anti-skidding sharp 1512 perpendicular to this arc concave surface in this arc concave surface 1511; The other end 152 of stud is fixed on the side fixing head; And hook retractor 16 1 ends form crotch 161, and this crotch and hook body are 110 degree angles, and it is anti-skidding sharp 1611 that crotch 161 inboards are formed with little spike shape, holds in addition to be fixed on the side fixing head.

Claims

1, a kind of pelvis-repositioning holder, comprise two side fixing heads, a spiral shell rod with positive and negative spiral shell button, several fixation clamps, several draw points, two side fixing heads are vertically fixed on the two ends of spiral shell rod respectively, it is characterized in that also comprising at least two studs or at least two hook retractors, one end of stud is a stub end, and the end face of this stub end inwardly forms the arc concave surface, forms the anti-skidding point of little spike shape perpendicular to this arc concave surface in this arc concave surface; The other end of stud is fixed on the side fixing head; Hook retractor one end forms crotch, and the crotch inboard is formed with the anti-skidding point of little spike shape, and end is fixed on the side fixing head in addition.

2, pelvis-repositioning holder according to claim 1 is characterized in that the plane, stub end end top of described stud becomes 15～20 degree angles with the vertical plane of nail body.

3, pelvis-repositioning holder according to claim 1 is characterized in that the crotch of described hook retractor and hook body are 105～110 degree angles.