CN2248540Y - External orthopaedic supporting frame for bent-end nail for treating lateral curvature - Google Patents

Abstract

The utility model relates to an external corrective bracket for arched root nails for treating the lateral bending of spinal columns. The utility model is mainly composed of two clamping tools for arched root nails, two vertical shafts, a supporting threaded rod and a pulling rope. The bracket is connected with arched root nails which are arranged on the concave sides of both ends of a main lateral bending and are adjacent to and exposed out of a vertebral body by the two clamping tools for arched root nails. The supporting threaded rod and a screw of the pulling rope are rotated in a harmonious way to support and draw spinal columns of sick segments slowly by 1 mm to 2 mm everyday until satisfactory correction is achieved. When an operation is carried out, bones are transplanted on the spinal columns of the sick segments in a confluent mode simultaneously, and the operation is finished in one time.

Description

The scoliosis nut is followed closely external correction bracket

This utility model belongs to medical apparatus and instruments.Specifically, be a kind of to scoliosis, be exposed to external nut nail by the lateral bending two ends and slowly support the corrigent external apparatus for correcting of drawing-off.

The treatment of scoliosis is still problem of difficulty at present, and to the patient of operation indication is arranged, current therapeutic method of surgery both domestic and external is broadly divided into two big classes:

(1) the disposable rectification of supporter in the body: this is current the most general Therapeutic Method both at home and abroad, as Harrington krimer operation, Luque krimer operation, the operation of CD rod etc.Change because spinal cord and mediastinum organ etc. can not be complied with disposable excessive position and form, correct excessively, can cause spinal cord injury, even can cause death because of the acute dysfunction of mediastinum organ.So its restitution factor is restricted, generally have only about 40%, restitution factor is dissatisfied.The Dwyer krimer operation it is said and can obtain better rectification effect, but operation is too big.The disposable corrective procedure of supporter in the body, another common drawback is that operation wound is big, complicated operation generally wants second operation to take out supporter in the body.

(2) correct slowly: the soft tissue of spinal cord, mediastinum organ, contracture etc. have good compliance to position and form change slowly, and most literature report proof is corrected slowly and can be obtained bigger restitution factor.At present, correct slowly can be divided into external support correct slowly with body in support correct two classes slowly: main finger halo～pelvis device for spreading is corrected in 1. external support slowly, also claims skull fracture.Its advantage is that operation is little, and controllability is good.Shortcoming is that locking tweezers is crossed over whole spinal column; wherein cervical vertebra bears the limited in one's ability of pulling force; although the lateral bending restitution factor can be brought up to about 50%, it is more that document is put down in writing its cervical region complication, the little articular degeneration 34% of cervical vertebra; Odontoid process ischemic necrosis 17%; injury of cranial nerve 6%, brachia plexus injury 3%, this device is excessive to patient's restriction simultaneously; the inconvenience nursing, present preceding the preparation or the postoperative protection of art that generally only is used for supporting in the body operation.2. support in the body and correct a kind of creation that mainly is meant Chinese scholar slowly, they use the material of LuqueShi rod instead marmem, during operation with this metal support cooling deliquescing, press the crooked pre-bending of pathology of spinal column, be fixed on the disease section spinal column by Luque krimer operation mode, then rewarming, supporter then produces a potential energy of replying original shape, force lateral bending slowly to be corrected, its lateral bending restitution factor can reach 52.3%, and is dangerous littler than supporting rectification in the gonosome.But big except performing the operation, beyond the complicated operation, the problem that exists is at present, and the size of its corrective force and straightening speed are difficult to estimate and are wayward.

Scoliosis is a kind of deformity of spine of slow generation, it not only has lateral bending, processus aboralis, rotation, the wedging of vertebra of spinal column itself, the soft tissue contracture, spinal cord of displacement, the recessed side of lateral bending of chest deformity, mediastinum organ and neural dissection change etc. are arranged simultaneously, are a kind of very complicated pathological states.

Purpose of design of the present utility model, provide a kind of external chronic bronchitis support arrangement of primary disease pathological characteristic and new slow corrective therapy method of meeting, its support scope only limits to the curved sick section spinal column of master, to overcome some shortcomings of existing Therapeutic Method, operation is simplified, and wound reduces, and complication reduces, further improve safety and therapeutic effect, this will have the important clinical meaning.

This utility model is achieved in that the scoliosis nut follows closely external correction bracket (Fig. 1), mainly is made up of two nuts nail jigs 1, two vertical shafts 2, a studdle 3 and a drag-line 4, studdle is followed closely jigs with drag-line by two vertical shafts and two nuts and is connected.Vertical shaft and studdle, drag-line, nut nail jig are all vertical.All there is the slip jack of assigning vertical shaft at the far-end of nut nail jig and studdle and drag-line two ends, and jig, studdle and drag-line all can rotate freely in the horizontal direction along vertical shaft.Studdle and drag-line all have an adjustable front and back Movable joint 5, to adapt to different spinal column front and back radians.Distance between two nuts nail bayonet sockets on the nut nail jig is adjustable 6, to adapt to the different nut spacings up and down of facing mutually.

Fig. 1 is that the scoliosis nut is followed closely external correction bracket

1 nut nail jig; 2 vertical shafts; 3 studdles; 4 drag-lines; 5 adjustable joints; 6 adjustable nut nail bayonet sockets.

Accompanying drawing 2 is external support operation sketch maps.

With Fig. 2 is that the utility model is described in further detail for embodiment.With the curved drift angle of master is that vertical straight cut is made at the center, appears the curved section of master both sides vertebral plate.Face two recessed sides of vertebral body mutually at the curved two ends of master and respectively squeeze into a nut nail, the nut nail exposes external 2-2.5cm through skin incision.Vertical shaft is injected the jig jack, make each jig block two again and face the nut nail mutually, tighten the jig screw and fix, notice that nut nail tail end does not exceed the jig plane.Again studdle and drag-line are respectively installed on the vertical shaft.Turn studdle and drag-line screw support, and feel to support the strong degree that is, generally can make the lateral bending degree reduce 25-30%, then vertebral plate or fusion of intervertebral joints bone grafting are carried out in the curved section of master both sides, close otch.Postoperative begins about 10 days to support slowly to be corrected, general studdle prolongation every day 1-2mm.The not obvious person of lateral bending section kyphosis deformity, studdle and drag-line can extend synchronously, and be obvious as processus aboralis, can make the drag-line extension speed slower than studdle, and kyphosis deformity also can necessarily be corrected like this.Along with the slow support of every day, visible lateral bending deformity slowly diminishes, and jig, becomes near parallel with studdle until jig enters studdle the place ahead fully slowly to the studdle rotation, as correcting satisfaction, promptly stops to support.The support process generally needs about 1 month.Finish to count from supporting, support kept 6-10 month, and striking took out the nut nail then, with protections such as plaster-of-paris jacket or plastic jacket, steel backing brace 1 year.

According to Preliminary Clinical, average lateral bending restitution factor is 50-60%, and any complication such as pin track infection, spinal cord injury, nut be cracked did not take place.In the support process, patient's no pain was left the bed in 10 days, and activity is better than the other treatment method freely.

Claims (5)

1, a kind of scoliosis nut is followed closely external correction bracket, mainly is made up of two nut nail jigs, two vertical shafts, a studdle and a drag-line, it is characterized in that: studdle is connected with two nut nail jigs by two vertical shafts with drag-line.

2, follow closely external correction bracket by the described scoliosis nut of claim 1, it is characterized in that: nut nail jig, studdle and drag-line, assign the jack of vertical shaft all to be slidingly matched, receptacle axis is vertical with nut nail jig, studdle and drag-line, and nut nail jig, studdle and drag-line can both be that axle rotates freely in the horizontal direction with the vertical shaft.

3, follow closely external correction bracket by the described scoliosis nut of claim 1, it is characterized in that: nut is followed closely the far-end that the jack of assigning vertical shaft on the jig is positioned at jig.

4, follow closely external correction bracket by the described scoliosis nut of claim 1, it is characterized in that: studdle and drag-line all have an adjustable front and back Movable joint.

5, follow closely external correction bracket by the described scoliosis nut of claim 1, it is characterized in that: nut nail jig has two nut nail bayonet sockets, and the distance between two bayonet sockets is adjustable.