CN2408833Y

CN2408833Y - Combined internal and external synchronous limb prolonging apparatus

Info

Publication number: CN2408833Y
Application number: CN 00205735
Authority: CN
Inventors: 夏和桃
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-21
Filing date: 2000-02-21
Publication date: 2000-12-06
Anticipated expiration: 2010-02-21

Abstract

The utility model relates to a combined internal and external synchronous limb lengthening apparatus, characterized in that the combined internal and external synchronous limb lengthening apparatus is composed of a simultaneous lengthening apparatus and a far-end three-dimensional positioning apparatus of a bone nail with a lock, and the simultaneous prolonging apparatus comprises a bone lengthening apparatus, and a mobile span articulation apparatus. The bone lengthening apparatus comprises a pore steel needle ring, a lengthening adjustor, a stable ring, an orthopedic ring, a steel needle, and a lock pin apparatus. The mobile span articulation apparatus comprises a mobile joint, a mobile elastic apparatus, a pore half ring, and a driving connecting rod, and the far-end three-dimensional positioning apparatus of a bone nail with a lock is composed of a three-dimensional positioning apparatus and a three-dimensional bone nail with a lock. The utility model overcomes the insufficiency of the existing limb lengthening apparatus, increasing the safety and practicability of the limb lengthening apparatus, enhancing the limb lengthening quality further, reducing the treatment cycle, and reducing complication, therefore, the combined internal and external synchronous limb lengthening apparatus coincides to the actual requirements and reduces a patient's pain.

Description

The synchronous extender of combination of inner and outside limbs

This utility model relates to a kind of medical apparatus, the synchronous extender of particularly a kind of combination of inner and outside limbs.

Shortcomings such as at present, existing limb lengthening device can only carry out passive limb lengthening, has treatment cycle long, and complication is many.

The purpose of this utility model is to provide a kind of combination of inner and outside limbs synchronous extender, overcome the deficiency of existing limb lengthening device, increase the safety and the practicality of limb lengthening, further improve the quality of limb lengthening, shorten treatment cycle, reduce complication, make it meet the clinical practice requirement more and alleviate patient's misery.

The purpose that application combination of inner and outside limb lengthening device carries out limb lengthening is to make not isometric limbs reach isometric, dwarfism and person's of short and small stature lower limb length is increased, limb lengthening is that a kind of limbs are organized in regenerated behavior under certain stress stimulation, how to create regenerated biomechanics environment to the limbs tissue, rule biology that adapts to tissue regeneration is to weigh the correctness of limb lengthening method, also is to determine what key of limb lengthening quality and complication.The synchronous extender of combination of inner and outside limbs is exactly innovation and the revolution of carrying out in order to solve this key issue.

The purpose of this utility model is achieved in that the synchronous extender of a kind of combination of inner and outside limbs, it is characterized in that: be made up of synchronous extender and intramedullary nail with lock far-end 3 D locating device; Described synchronous extender comprises: bone extension fixture and dynamic trans-articular device; Wherein:

(1), the bone extension fixture is to be made of hole draw point ring, prolongation actuator, stabilizing ring, orthopedic ring, draw point and purl device; Hole draw point ring, stabilizing ring and orthopedic ring are fixed on the two ends that prolong actuator respectively, uniform porose on the anchor ring of hole draw point ring, stabilizing ring and orthopedic ring, the purl device is installed on the hole draw point ring in twos relatively, and each root draw point is fixed by two purl devices;

(2), dynamically the trans-articular device is to be made of dynamic joint, dynamic elasticity device, hole semi-ring and drive link; Dynamically the orthopedic ring in trans-articular device and the bone extension fixture is connected and fixed by screw, is separately installed with dynamic joint and dynamic elasticity device on the hole semi-ring, also is fixed with purl device and draw point on the hole semi-ring; The draw point ring is installed on the dynamic joint, drive link, purl device and draw point are installed on the draw point ring; Dynamically the trans-articular device can allow the joint that certain range of activity is arranged again so that limbs soft tissue and bone prolong synchronously.

Intramedullary nail with lock far-end 3 D locating device (utility application of this device is authorized to, and application number 99205513.X is so just no longer describe in detail the structure of this device) comprises 3 D locating device and three-dimensional intramedullary nail with nail; Wherein:

(1), three-dimensional intramedullary nail with nail is to be made of multidirectional intramedullary needle of threading a needle and pinning;

(2), 3 D locating device is to be made of pedestal, locating rod, far and near end localizer and drift bolt sleeve pipe.

Prolongation actuator in the-described bone extension fixture is built-in screw rod.

Orthopedic ring in the-described bone extension fixture is a loopful.

-described draw point has straight-bar elastic steel-needle and middle Threaded steel needle.

-described three-dimensional intramedullary nail with lock is to be made of multidirectional intramedullary pin of threading a needle and pinning.

The utlity model has following advantage owing to there is above-mentioned structure to make:

Treatment cycle is short, and the precision of limb lengthening and success rate height prolong bone and soft tissue synchronously; To the articular cartilage not damaged, need not to do the heel string operation, complication such as drop foot do not take place, can be during the treatment from bed motion, basic no pain of treatment phase.

Below in conjunction with drawings and Examples this utility model is described further

Fig. 1 is a whole assembly structure figure of the present utility model.

Fig. 2 (a) and (b) are this utility model drive linkage arrangement figure.

Fig. 3 is hole semi-loop figure of the present utility model.

Fig. 4 (a) and (b) are structure charts of dynamic elasticity device of the present utility model.

Fig. 5 (a) and (b) are structure charts of prolongation actuator of the present utility model.

Fig. 6 (a) and (b) are the loopful structure charts of hole of the present utility model.

Fig. 7 is the structure chart of straight-bar draw point of the present utility model.

Fig. 8 (a) and (b) are structure charts of Threaded steel needle of the present utility model and needle point.

Fig. 9 is the whole assembly structure figure of this utility model intramedullary nail with lock far-end 3 D locating device.

Among the figure, 1-bone extension fixture, 11-hole draw point ring, 12-prolongs actuator, 13-stabilizing ring, the orthopedic ring of 14-.

The dynamic trans-articular device of 2-, the 21-dynamic joint, 22-dynamic elasticity device,

The 23-drive link, 24-hole semi-ring, 25-draw point ring, the 3-draw point,

4-purl device.

9-intramedullary nail with lock far-end 3 D locating device, the 91-pedestal, the 92-guide rod,

The 93-locating rod, 94-far-end localizer, 95-drift bolt sleeve pipe, 96-intramedullary pin.

Referring to Fig. 1-Fig. 9, the synchronous extender of a kind of combination of inner and outside limbs is characterized in that: be made up of synchronous extender and intramedullary nail with lock far-end 3 D locating device 9; Described synchronous extender comprises: bone extension fixture 1 and dynamic trans-articular device 2; Wherein:

(1), bone extension fixture 1 is to be made of hole draw point ring 11, prolongation actuator 12, stabilizing ring 13, orthopedic ring 14, draw point 3 and purl device 4; Hole draw point ring 11, stabilizing ring 13 and orthopedic ring 14 are fixed on the two ends that prolong actuator 12 respectively, uniform porose on the anchor ring of hole draw point ring 11, stabilizing ring 13 and orthopedic ring 14, purl device 4 is installed on the hole draw point ring 11 in twos relatively, and each root draw point 3 is fixed by two purl devices 4;

(2), dynamically trans-articular device 2 is to be made of dynamic joint 21, dynamic elasticity device 22, hole semi-ring 24 and drive link 23; Dynamically the orthopedic ring in trans-articular device 2 and the bone extension fixture 1 14 is connected and fixed by screw, is separately installed with dynamic joint 21 and dynamic elasticity device 22 on the hole semi-ring 24, also is fixed with purl device 4 and draw point 3 on hole semi-ring 24; Draw point ring 25 is installed on the dynamic joint 21, drive link 23, purl device 4 and draw point 3 are installed on the draw point ring 25; Dynamically trans-articular device 2 can allow the joint that certain range of activity is arranged again so that limbs soft tissue and bone prolong synchronously.Intramedullary nail with lock far-end 3 D locating device 9 comprises 3 D locating device and three-dimensional intramedullary nail with nail; Wherein:

(1), three-dimensional intramedullary nail with nail is to be made of multidirectional intramedullary needle of threading a needle 96 and pinning;

(2), 3 D locating device is to be made of pedestal 91, locating rod 92, far and near end localizer 94 and drift bolt sleeve pipe 95 and guide rod 92.

Claims

1, the synchronous extender of a kind of combination of inner and outside limbs is characterized in that: be made up of synchronous extender and intramedullary nail with lock far-end 3 D locating device; Described synchronous extender comprises: bone extension fixture and dynamic trans-articular device; Wherein:

2, the synchronous extender of a kind of combination of inner and outside limbs according to claim 1, it is characterized in that: intramedullary nail with lock far-end 3 D locating device comprises 3 D locating device and three-dimensional intramedullary nail with nail; Wherein:

3, the synchronous extender of a kind of combination of inner and outside limbs according to claim 1, it is characterized in that: the prolongation actuator in the bone extension fixture is built-in screw rod.

4, the synchronous extender of a kind of combination of inner and outside limbs according to claim 1, it is characterized in that: the orthopedic ring in the bone extension fixture is a loopful.

5, the synchronous extender of a kind of combination of inner and outside limbs according to claim 1, it is characterized in that: draw point has straight-bar elastic steel-needle and middle Threaded steel needle.