CN201870717U - Flexibly micromotion and slidably pressurization blocking-free shank interlocking nail - Google Patents
Flexibly micromotion and slidably pressurization blocking-free shank interlocking nail Download PDFInfo
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- CN201870717U CN201870717U CN2010206414883U CN201020641488U CN201870717U CN 201870717 U CN201870717 U CN 201870717U CN 2010206414883 U CN2010206414883 U CN 2010206414883U CN 201020641488 U CN201020641488 U CN 201020641488U CN 201870717 U CN201870717 U CN 201870717U
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- nail
- fracture
- shank
- interlocking nail
- pinning
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Abstract
A flexibly micromotion and slidably pressurization blocking-free shank interlocking nail relates to bone fracture fastening nails, wherein two longitudinal mesopores are arranged in an interlocking nail body, and the far and the near ends of each mesopore are respectively provided with a side opening for matching with the interlocking nail; the matching use with the interlocking nail means that: the interlocking nail penetrates through the mesopore, one end of the interlocking nail is provided with a locking nail hook, the other end of the interlocking nail is provided with a fixed nut, the interlocking nail can penetrate from the side opening of the far end of the nail body, and penetrate out from the side opening of the near end, and the fixed nut presses a fracture end and is fixed on the fracture shank. The flexibly micromotion and slidably pressurization blocking-free shank interlocking nail provided by the utility model has the obvious effects that: (1) two interlocking nails can directly press the fracture end for expediting fracture healing; (2) the elastic interlocking nail can slide along a needle passage, and does not generate stress blocking; (3) the flexibly micromotion facilitates fracture healing, and the bone substance is not easy to lose and waste; (4) the interlocking nail can be taken out at one time after a main nail heals; and (5) an aiming device is arranged, so the operation is simple.
Description
Technical field
This utility model relates to technical field of medical instruments, further is a kind of bone injury fracture fixation equipment, and especially fixedly the nothing of fracture of lower leg is blocked intramedullary nail with lock.
Background technology
At present, it is more to be used for the treatment of the fracture of lower leg apparatus, comprises steel plate, intramedullary pin, support arm etc., but all exist certain drawback, wherein, normal tape lock intramedullary nail shortcoming: two pieces of lock screw of 1. far and near end laterally produce stress force shelter reaction, cause that easily sclerotin shrinks back, the secondary fracture; 2. can't pressurize by fracture end, be unfavorable for union of fracture; 3. there is the gap in the later stage fracture end after absorbing, and is unfavorable for union of fracture; 4. normally need early stage far-end or the near-end locking nail of taking out; 5. fracture end does not almost have the fine motion pressurization, can't stimulate fracture end, and then can not promote union of fracture.
Summary of the invention
The purpose of this utility model is to provide a kind of elasticity fine motion slip pressurization not have and blocks the shank intramedullary nail with lock, it can overcome the defective of prior art, can directly pressurize at fracture end, after fracture end absorbs, can slide, eliminate the gap along needle track, the anti-rotation of pinning, and flexible, can produce the fracture end fine motion, the non-stress shielding effect.
The purpose of this utility model realizes by following scheme: the elasticity fine motion is slided to pressurize not have and blocked the shank intramedullary nail with lock, it is characterized in that: in the intramedullary pin nail body two vertical mesopores are set, mesopore is used with pinning in far away, near-end difference lateral openings; Described and pinning is used, and refers to that pinning penetrates in vertical mesopore, and an end of pinning is provided with the pinning hook, the other end is provided with hold-doun nut, pinning can penetrate in the mesopore from nail body distal side mouth, and passes in the proximal lateral mouth, and hold-doun nut pressurized fracture end also is fixed on the thigh bone of fracture.
This utility model also can further be realized by following scheme:
Described intramedullary pin is provided with bending, and promptly the angle α of near-end and all the other nail body formation is less than 180 degree.Wherein, angle α can select the 160-170 degree, generally can select 165 degree.
The proximal lateral mouth of described two mesopores and distal side mouth are all at homonymy not.
Described thigh bone refers to focile.
Described intramedullary pin nail body is cylindrical.
The near-end of described intramedullary pin nail body is provided with vertical screw hole, is used to hold the screw that connects sighting device.
This utility model using method:
1. reset under the perspective;
2. sighting bar is connected on the intramedullary pin;
3. the center lower cut cuts before getting knee joint, and marrow is expanded in ridge place perforate before the shin;
4. intramedullary pin is penetrated in the pulp cavity;
5. install location aiming sleeve, in inside and outside ankle perforating, in the perforating of tibial plateau portion;
6. two pieces of pinnings bore the bone marrow road along far-end and penetrate intra medullary nail far-end side mouth, pass and appear sclerotin from proximal lateral Kou Chu;
7. be screwed into pinning with the pinning nut and add press fit;
8. tear sighting device open;
9. flushing is sewed up, and operation finishes.
The utlity model has following remarkable result: 1. two pinnings can directly pressurize at fracture end, promote the healing of folding end; 2. the elasticity pinning can slide the non-stress shielding effect along needle track; Promote the healing of folding end; 3. elasticity fine motion promotes union of fracture, and sclerotin is difficult for losing useless using; 4. can be with the disposable taking-up pinning in main nail healing back; 5. be with sighting device, simple to operate.
Description of drawings
Fig. 1 is this utility model structural representation, Fig. 2 be this utility model Figure 1A to sketch map, Fig. 3 is this utility model pinning structural representation, sketch map when Fig. 4 uses for this utility model.
Among the figure: 1 is the nail body, and 2 is the proximal lateral mouth, and 3 is mesopore, and 4 is the distal side mouth, and 5 is screw hole, and 6 is pinning, and 7 is hold-doun nut, and 8 is the pinning hook, and 9 is the injury of the bone.
The specific embodiment
In order to make those skilled in the art person understand this utility model scheme better, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, this utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment: for sake of convenience, the left end of Fig. 1 is called near-end, right-hand member is a far-end.As Fig. 1-shown in Figure 4, in the nail body 1 two vertical mesopores 3 are set, mesopore 3 near-ends have proximal lateral mouth 2, and the proximal lateral mouth 2 that far-end has 4, two mesopores 3 of distal side mouth and distal side mouth 4 are all at homonymy not; Pinning 5 can penetrate in the mesopore 3 by distal side mouth 4, passed by proximal lateral mouth 2, an end of pinning 6 is provided with hold-doun nut 7 again, and the other end is provided with pinning hook 8, but on the pinning hook 8 hook injury of the bones 9, can screw the pressurized fracture end by hold-doun nut 6 and be fixed in injury of the bone 9(calf shank) on.
Described intramedullary pin is provided with bending, and promptly the angle α of near-end and all the other nail body formation can select 165 degree less than 180 degree.
The near-end of described intramedullary pin nail body 1 is provided with vertical screw hole 5, is used to hold the screw that connects sighting device.
The above; it only is the specific embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.
Claims (7)
1. the elasticity fine motion is slided to pressurize not have and blocked the shank intramedullary nail with lock, it is characterized in that: in the intramedullary pin nail body two vertical mesopores are set, mesopore is used with pinning in far away, near-end difference lateral openings; Described and pinning is used, and refers to that pinning penetrates in vertical mesopore, and an end of pinning is provided with the pinning hook, the other end is provided with hold-doun nut, pinning can penetrate in the mesopore from nail body distal side mouth, and passes in the proximal lateral mouth, and hold-doun nut pressurized fracture end also is fixed on the thigh bone of fracture.
2. elasticity fine motion according to claim 1 is slided to pressurize not have and is blocked the shank intramedullary nail with lock, and it is characterized in that: described intramedullary pin is provided with bending, and promptly the angle α of near-end and all the other nail body formation is less than 180 degree.
3. elasticity fine motion according to claim 2 is slided to pressurize not have and is blocked the shank intramedullary nail with lock, and it is characterized in that: described angle α is the 160-170 degree.
4. the elasticity fine motion according to claim 1 pressurization of sliding does not have and blocks the shank intramedullary nail with lock, it is characterized in that: the proximal lateral mouth of described two mesopores and distal side mouth are all at homonymy not.
5. elasticity fine motion according to claim 1 is slided to pressurize not have and is blocked the shank intramedullary nail with lock, and it is characterized in that: described thigh bone refers to focile.
6. elasticity fine motion according to claim 1 is slided to pressurize not have and blocked the shank intramedullary nail with lock, it is characterized in that: described intramedullary pin nail body is cylindrical.
7. elasticity fine motion according to claim 1 is slided to pressurize not have and blocked the shank intramedullary nail with lock, it is characterized in that: the near-end of described intramedullary pin nail body is provided with vertical screw hole, is used to hold the screw that connects sighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206414883U CN201870717U (en) | 2010-12-05 | 2010-12-05 | Flexibly micromotion and slidably pressurization blocking-free shank interlocking nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206414883U CN201870717U (en) | 2010-12-05 | 2010-12-05 | Flexibly micromotion and slidably pressurization blocking-free shank interlocking nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201870717U true CN201870717U (en) | 2011-06-22 |
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ID=44158655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206414883U Expired - Fee Related CN201870717U (en) | 2010-12-05 | 2010-12-05 | Flexibly micromotion and slidably pressurization blocking-free shank interlocking nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201870717U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551859A (en) * | 2012-01-04 | 2012-07-11 | 张建林 | Lock-containing intramedullary nail locked from inside to outside |
| CN103860251A (en) * | 2014-03-07 | 2014-06-18 | 中国人民解放军第四军医大学 | Medical anchor type vertebral pedicle screw |
| CN103860252A (en) * | 2014-03-07 | 2014-06-18 | 中国人民解放军第四军医大学 | Medical anchor type cancellous bone screw |
-
2010
- 2010-12-05 CN CN2010206414883U patent/CN201870717U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551859A (en) * | 2012-01-04 | 2012-07-11 | 张建林 | Lock-containing intramedullary nail locked from inside to outside |
| CN102551859B (en) * | 2012-01-04 | 2014-02-05 | 张建林 | Lock-containing intramedullary nail locked from inside to outside |
| CN103860251A (en) * | 2014-03-07 | 2014-06-18 | 中国人民解放军第四军医大学 | Medical anchor type vertebral pedicle screw |
| CN103860252A (en) * | 2014-03-07 | 2014-06-18 | 中国人民解放军第四军医大学 | Medical anchor type cancellous bone screw |
| CN103860251B (en) * | 2014-03-07 | 2017-01-25 | 中国人民解放军第四军医大学 | Medical anchor type vertebral pedicle screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111205 |