CN201108485Y

CN201108485Y - Micro-wound automatic resetting machine of fracture of acetabulum

Info

Publication number: CN201108485Y
Application number: CNU2007201590868U
Authority: CN
Inventors: 穆卫东
Original assignee: Shandong Provincial Hospital
Current assignee: Shandong Provincial Hospital
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-09-03
Anticipated expiration: 2017-12-25

Abstract

The utility model discloses an acetabulum fracture minimally invasive automatic replacer belongs to the field of medical devices and includes an telescopic pipe bus and a retractor; the telescopic pipe bus includes an inner pipe and an outer pipe; the front end of the retractor is provided with a tip head; the tail end of the retractor is fixed and connected on a connecting piece on the tail end of the inner pipe; the tail end of the inner pipe is fixed and connected with a holder; the outer pipe wall on one side of the inner pipe is provided with an alveolus; the outer pipe and the inner pipe are slidingly connected; the tail end of the outer pipe is provided with a gear and a one-way limit switch matching with the alveolus of the inner pipe; the gear and the alveolus are meshed; a knob is fixed on a gear axis; the one-way limit switch is locked in the alveolus; the front end of the outer pipe is connected with a supporting head. The acetabulum fracture minimally invasive automatic redactor has simple structure, is easy to be operated, can realize minimally invasive to the patients and conduct reliable reduction to the acetabulum fracture; the reduction saves time and labor, greatly reduces the labor intensity when the doctor performs a surgery, reduces the pain of the patients, is convenient and practical.

Description

Fracture of acetabulum Wicresoft automatic reset

1, technical field

This utility model relates to medical instruments field, specifically a kind of fracture of acetabulum Wicresoft automatic reset.

2, background technology

Because thunder bolt usually can cause the injury of skeleton, and fracture is the most general a kind of skeleton trauma result, the fracture back connects particularly important to resetting of skeleton in people's life, and this is directly connected to the recovery and the healthy healing of patient's skeleton.In fracture since the volume that has of hipbone big, the peculiar shape of pelvis especially determined the difficulty the most that resets of fracture of acetabulum, in operation, have to that more the soft tissue around the hipbone is carried out wound and reach as much as possible the whole hipbone that exposes, and ilium groin approach has a lot of great Femur blood vessel and nerves near the hipbone, in case the time deal with improperly or other accidents are not only brought very big misery to the patient in operation, but also even may cause the maimed person.To with the existing reduction instrument of the fracture of acetabular bone be clamp type structure, the too simple reset effect of this apparatus is poor, resetting after being difficult to accomplish to fracture in the time of mostly, at present also there is not a kind of apparatus of special use to be reduced to bottom line to harm value and wound value, and can also play the reduction with good effect to the patient to fracture with acetabular bone.

3, summary of the invention

Technical assignment of the present utility model is to overcome the deficiencies in the prior art, provides a kind of and can realize Wicresoft and can be to the acetabular bone fixed operating theater instruments that reset reliably after the fracture to the patient, is a kind of fracture of acetabulum Wicresoft automatic reset specifically.

The technical solution of the utility model realizes in the following manner, fracture of acetabulum Wicresoft automatic reset, comprise drag hook and telescopic tube assembly, the front end that it is characterized in that drag hook is provided with the bill head, the telescopic tube assembly comprises inner sleeve and trocar sheath, the end of drag hook is fixedly connected on the brace of inner sleeve end, the end of inner sleeve also is provided with and shakes hands, one side of inner sleeve has teeth groove, trocar sheath and inner sleeve are slidingly connected, and the end of trocar sheath is provided with gear and the unidirectional limit switch that matches with the inner sleeve teeth groove, and gear is meshed with teeth groove, the gear axial region is fixed with knob, and the trocar sheath front end is provided with supporting member.

The utility model has the advantages that:

This fracture of acetabulum Wicresoft automatic reset is simple in structure, easy operating, to being difficult in the hip fracture to reset and fixed acetabular bone inwall resets fixing reliably, avoiding widely, soft tissue exposes, especially Femur blood vessel during hip groin approach and neural exposure shortened operating time and reduced hemorrhagely to reach the purpose of Wicresoft, and reset operation is time saving and energy saving, greatly reduce the labor intensity of doctor when performing the operation, reduce the patient suffering.

4, description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is A-A structure cut-away views of the present utility model.

Labelling in the accompanying drawing is represented respectively:

Drag hook 1, bill head 2, inner sleeve 3, trocar sheath 4, shake hands 5, teeth groove 6, gear 7, knob 8, unidirectional limit switch 9, supporting member 10, pad 11.

5, the specific embodiment

Do following detailed description the in detail below in conjunction with 1,2 pairs in accompanying drawing fracture of acetabulum of the present utility model Wicresoft automatic reset:

As accompanying drawing 1, shown in 2, fracture of acetabulum of the present utility model Wicresoft automatic reset, comprise drag hook 1 and telescopic tube assembly, the telescopic tube assembly comprises inner sleeve 3 and trocar sheath 4, the front end of drag hook 1 is provided with bill head 2, bill head 2 is provided with the pad 11 of band saw tooth, drag hook front end and bill head 2 are threaded, drag hook is terminal to be connected with inner sleeve brace bolt, drag hook hook body is the circular arc bending, the end of inner sleeve 3 also is provided with and shakes hands 5, one side of inner sleeve has teeth groove 6, and inner sleeve 3 tube chamber hollow sections are circular, and trocar sheath 4 and inner sleeve 3 are slidingly connected, the end of trocar sheath is provided with gear 7 and the unidirectional limit switch 9 that matches with the inner sleeve teeth groove, gear 7 is meshed with teeth groove 6, and gear 7 axial regions are fixed with knob 8, and the trocar sheath front end is provided with tubular support 10, the supporting member front end is a zigzag, and supporting member is threaded with trocar sheath.

Drag hook, bill head and the supporting member of fracture of acetabulum of the present utility model Wicresoft automatic reset all are detachable blocks, the all supporting parts that the different model specification is arranged of drag hook, bill head and supporting member through change different parts in operation process are finished reset operation to hipbone head owing to can't satisfy operation during needs in order to a kind of parts.

Using method of the present utility model is: the fracture site of first patient diagnosed's hipbone before the operation, shape structure with hipbone is done analysis, determine the position location of this fracture of acetabulum Wicresoft automatic reset supporting member at hipbone, certain that choose unmarred hipbone is a bit done the strong point, during operation, part (anterior superior iliac spine is back 1/3rd intersections to the crista iliaca backward) are got little otch and are appeared ilium inner panel and acetabular bone inwall fracture in before patient's hip ridge, select the drag hook of different size according to the fracture of acetabular bone inwall different parts and displacement degree, bill head and supporting member are installed, hold earlier and shake hands, supporting member is withstood the strong point of hipbone, hook the bone piece that breaks apart with drag hook, knob by swing pinion extends trocar sheath, to reach the effect that the bone piece that breaks apart is exerted pressure and resetted.Hollow tube chamber by inner sleeve runs through fracture end boring then, measures drilling depth, selects the screw of different length to fix, and removes positor by discharging unidirectional limit switch, adopts the fixedly fracture at position such as front pillar of dissection armor plate and other methods then.

Claims

1, fracture of acetabulum Wicresoft automatic reset, comprise telescopic tube assembly and drag hook, it is characterized in that the telescopic tube assembly comprises inner sleeve and trocar sheath, the front end of drag hook is provided with the bill head, the end of drag hook is fixedly connected on the brace of inner sleeve end, the end of inner sleeve is fixedly connected with shakes hands, the pipe outer wall of inner sleeve one side has teeth groove, trocar sheath and inner sleeve are slidingly connected, the end of trocar sheath is provided with gear and the unidirectional limit switch that matches with the inner sleeve teeth groove, and gear is meshed with teeth groove, and the gear axial region is fixed with knob, unidirectional limit switch is buckled in the teeth groove, and the trocar sheath front end is connected with supporting member.

2, fracture of acetabulum according to claim 1 Wicresoft automatic reset is characterized in that the drag hook front end is connected with the bill head thread.

3, fracture of acetabulum according to claim 1 Wicresoft automatic reset is characterized in that drag hook is terminal to be connected with inner sleeve brace bolt.

4, fracture of acetabulum according to claim 1 Wicresoft automatic reset is characterized in that inner sleeve is a hollow pipe, and the tube chamber section is circular.

5, fracture of acetabulum according to claim 1 Wicresoft automatic reset, the supporting member that it is characterized in that trocar sheath is a tubulose, and the supporting member front end is a zigzag, and supporting member is threaded with trocar sheath.

6, fracture of acetabulum according to claim 1 Wicresoft automatic reset is characterized in that the bill head is provided with the pad of band saw tooth.

7, fracture of acetabulum according to claim 1 Wicresoft automatic reset is characterized in that drag hook hook body is the circular arc bending.