CN2347552Y - Two-way adjustable perforating external fixator of fracture with ring groove - Google Patents
Two-way adjustable perforating external fixator of fracture with ring groove Download PDFInfo
- Publication number
- CN2347552Y CN2347552Y CN 98207252 CN98207252U CN2347552Y CN 2347552 Y CN2347552 Y CN 2347552Y CN 98207252 CN98207252 CN 98207252 CN 98207252 U CN98207252 U CN 98207252U CN 2347552 Y CN2347552 Y CN 2347552Y
- Authority
- CN
- China
- Prior art keywords
- external fixator
- bone
- bone external
- annular disk
- fracture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 40
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 230000008844 regulatory mechanism Effects 0.000 claims description 6
- 201000010099 disease Diseases 0.000 abstract description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 2
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 229910001069 Ti alloy Inorganic materials 0.000 abstract 1
- 210000003141 lower extremity Anatomy 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 3
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 208000008037 Arthrogryposis Diseases 0.000 description 1
- 206010023201 Joint contracture Diseases 0.000 description 1
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 206010034156 Pathological fracture Diseases 0.000 description 1
- 206010058046 Post procedural complication Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 208000005250 Spontaneous Fractures Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000003491 skin Anatomy 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a bone external fixator for curing the diseases of the bone and the joint and is characterized in that the utility model comprises an annular disk with a plurality of apertures in the slotted hole structure and a bidirectional regulating mechanism made of titanium alloy. The bidirectional regulating mechanism can be regulated to force the utility model to be stretched and pressed and removed from angles between a ring and in two directions.
Description
The present invention relates to a kind of medical apparatus and instruments, more particularly, relate to a kind of bone external fixator that is used for orthopaedics therapy.
The pluses and minuses that compare the more several bone external fixators of domestic and international application, Most scholars thinks that the performance of the annular multi-functional bone external fixator that the Zha Nuofu of orthopedist Erie of the former Soviet Union (Ilizarov) develops is better than other bone external fixator, is the first-selected apparatus for the treatment of the B﹠J disease at present with the bone external fixator.
On nearly hundred routine sick child's such as my institute's orthopaedics connects at application Yi Shi bone external fixator treatment children's limb shortening, bone does not connect, arthrogryposis the practical basis, find that Yi Shi bone external fixator still leaves some room for improvement in structure, performance, material and operating aspect.For example: Yi Shi bone external fixator needs to replace with spanner the nut of the thread rod of degree of tightness two interannulars, finish bone prolongation, pressurization or go to into the angle, the complex operation and the button that overflows easily, and, hinder joint motion and loading by lower limbs doing the annular disk outside that the thread rod of bone overtime must stretch out near-end or far-end.
The objective of the invention is structure to Yi Shi bone external fixator, performance, material is reformed, and makes its structure, operation more reasonable, helps improving therapeutic effect, alleviates the various complication that patient easily causes during the treatment of band bone external fixator.
Over nearly 3 years, we have developed titanium system cannelure cellular type external fixator.This kind of bone external fixator is reasonable in design, compact mechanical structure and flexibly, good stability, easy to operate.Particularly but the unique two-ways regulation mechanism of design need only use the hands turning knob, can finish bone several seconds and prolong, pressurizes or go into operations such as angle.The thread rod of this bone external fixator is built-in, and thread rod does not stretch out annular disk, has eliminated the obstruction to joint motion and loading by lower limbs, makes it more help the healing of early stage exercise of joint function, bone stump, the generation of callus.The annular disk of many bores and slot type structure make the fixed position of Kirschner wire bolt adjustable continuously, the fixing more straight convenience of Kirschner wire.Owing to alleviated the load of Ke Shi draw point, thereby alleviated the stimulation of its bone, soft tissue and skin, reduced the incidence rate of complication such as pin site infection, joint stiffness, contracture and pathological fracture to infant.
Below in conjunction with accompanying drawing bone external fixator of the present invention is described further.
Fig. 1 is the outward appearance of existing Yi Shi bone external fixator.
Fig. 2 is the outward appearance of bone external fixator of the present invention.
Fig. 3 is the two-ways regulation mechanism of bone external fixator of the present invention.
The Yi Shi bone external fixator of Fig. 1 comprises: the set bolt 2 of loose structure 1, the two semi-ring connecting portion on two semi-rings and the semi-ring, connect the thread excellent 3 of annular disk, and the Ke Shi draw point 4 that the bone external fixator is connected with bone gives reserve thread excellent 5, adjusting nut 6, callus 7.
We find that Yi Shi bone external fixator has following problem in nearly hundred example application Yi Shi bone external fixators are treated:
1 Yi Shi bone external fixator prolongs, pressurizes, goes into the angle and need with the spanner nut of degree of tightness annular disk and thread excellent connecting portion alternately repeatedly finishing bone, and complex operation and overflowing is easily detained.
2 need give the thread rod of reserving certain-length before finishing the bone prolongation, because of the thread rod of part stretches out outside the annular disk, hinder joint motion and loading by lower limbs, influence therapeutic effect.
3 owing to can only lean on the nut of degree of tightness one side annular disk and thread excellent junction to adjust the annular disk Plane Angle, the angle of going into of overflowing and detaining and be difficult to finish wide-angle easily in the operation.
4 liang of semi-rings connect to form loopful by nut, are difficult to form a complete plane, have increased the quantity of nut again, have reduced effective usage space of annular disk.
5 because the loose structure of annular disk makes Kirschner wire pass the trouble limb and is difficult to still keep straight line by institute's corresponding aperture, fixedly causes the Kirschner wire bending by force, easily causes pin site infection, influences surgical effect.
Bone external fixator of the present invention comprises two-ways regulation mechanism 8 among Fig. 2, slotted eye annular disk 9, Kirschner wire and bolt 10, thread excellent 11 of interior plant two interannulars.The fundamental difference of bone external fixator of the present invention and Yi Shi bone external fixator is: only with hand refers to regulate two-ways regulation mechanism, change the distance and the angle of two interannulars, finish the purpose that bone prolongs, pressurizes, goes into the angle, substituted that Yi Shi bone external fixator must the thread rod of degree of tightness and annular disk connecting portion nut reach above process repeatedly with spanner.Because thread rod does not stretch out outside the ring, does not influence patient activity joint and loading by lower limbs, in addition,, can finish and go to into the angle largely by regulating two-ways regulation mechanism.Because annular disk is groove structure, make the fixed position of gram formula pin on annular disk adjustable continuously, avoid the bending of gram formula pin, and then avoided postoperative complication such as pin site infection.
Claims (1)
1 one kinds of bone external fixators that are used for treatment such as Osteological, it is characterized in that this bone external fixator has many bores annular disk of slotted hole structure, and the two-ways regulation structure, by regulating the purpose that two-ways regulation mechanism reaches the two-way extension of interannular, pressurizes, goes into the angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207252 CN2347552Y (en) | 1998-07-20 | 1998-07-20 | Two-way adjustable perforating external fixator of fracture with ring groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98207252 CN2347552Y (en) | 1998-07-20 | 1998-07-20 | Two-way adjustable perforating external fixator of fracture with ring groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2347552Y true CN2347552Y (en) | 1999-11-10 |
Family
ID=33963223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98207252 Expired - Fee Related CN2347552Y (en) | 1998-07-20 | 1998-07-20 | Two-way adjustable perforating external fixator of fracture with ring groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2347552Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100518680C (en) * | 2007-03-21 | 2009-07-29 | 中国人民解放军第三军医大学第一附属医院 | Bone external fixer |
-
1998
- 1998-07-20 CN CN 98207252 patent/CN2347552Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100518680C (en) * | 2007-03-21 | 2009-07-29 | 中国人民解放军第三军医大学第一附属医院 | Bone external fixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |