CN201879811U - Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh - Google Patents
Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh Download PDFInfo
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- CN201879811U CN201879811U CN2010206414845U CN201020641484U CN201879811U CN 201879811 U CN201879811 U CN 201879811U CN 2010206414845 U CN2010206414845 U CN 2010206414845U CN 201020641484 U CN201020641484 U CN 201020641484U CN 201879811 U CN201879811 U CN 201879811U
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- thigh
- nail
- intramedullary nail
- intramedullary
- lock
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Abstract
The elastic micro-motion slidable compression unboarded interlocking intramedullary nail for the thigh relates to a fastening nail for bone fracture, and is characterized in that two longitudinal mesopores are formed in an intramedullary nail lock body, lateral openings are formed at the far ends and the rear ends of the mesopores respectively, the mesopores are matched with locking nails for use, which means that the locking nails penetrate into the longitudinal mesopores, locking nail hooks are arranged at one ends of the locking nails, retaining nuts are arranged at the other ends of the locking pins, the locking nailspenetrate into the mesopores from the lateral opening at the far end of the intramedullary nail lock body and penetrate out of the lateral opening at the near end, and the bone fracture end is pressurized through the retaining nuts and is fixed on a fractured shank. The elastic micro-motion slidable compression unboarded interlocking intramedullary nail for the thigh has the following obvious effects that firstly, two locking nails can not pressurize the bone fracture end directly, so that the healing of the bone fracture end is promoted; secondly, an elastic locking nail can slide clockwise, and no stress shielding effect exists, so that the healing of the bone fracture end is promoted; thirdly, the elastic micromotion can promote the healing of the bone fracture end, and the bone substance is not easy to lose and disuse; fourthly, the locking nails can be taken out once for all after the bone fracture end is healed through main nails; and fifthly, the elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for the thigh is provided with an aiming device, so that 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 thigh is blocked intramedullary nail with lock.
Background technology
At present, it is more to be used for the treatment of the fracture of thigh 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 pinning 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 thigh 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 thigh 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 nail body middle part has radian.
Described radian is 0.1-1.
The proximal lateral mouth of described two mesopores is in the same side, and the distal side mouth is at homonymy not.
Described thigh bone refers to Thigh bone.
Described intramedullary pin nail body is a cylinder.
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.
Nail about described intramedullary pin divides, two proximal lateral mouths of left intramedullary pin are all opened to the left, and two proximal lateral mouths of right intramedullary pin are all opened to the right.
Thigh locking using method:
1. reset under the perspective;
2. sighting bar is connected on the intramedullary pin;
3. get the outer upper cut of femoral bone tuberosity and cut, marrow is expanded in the place's perforate of pears shape nest;
4. intramedullary pin is penetrated in the pulp cavity;
5. install location aiming sleeve, ectocondyle portion perforating in femur, upper and lower sidepiece perforating outside femoral greater trochanter;
6. two pieces of pinnings bore the bone marrow road along ectocondyle in the distal femoral and penetrate intra medullary nail far-end side mouth respectively, and two pieces of pinnings pass and appear the femoral bone tuberosity 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, Fig. 4 is this utility model user mode sketch map.
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.Shown in Fig. 1-4, in the intramedullary pin nail body 1 two vertical mesopores 3 are set, mesopore 3 near-ends have proximal lateral mouth 2, and far-end has the proximal lateral mouth 2 of 4, two mesopores 3 of distal side mouth in the same side, and distal side mouth 4 is at homonymy not; Pinning 6 penetrates in the mesopore 3 by distal side mouth 4, is passed by proximal lateral mouth 2, but on the pinning hook 8 hook injury of the bones 9, can screw the pressurized fracture end by hold-doun nut 7 and be fixed in injury of the bone 9(Thigh bone) on.
The near-end of intramedullary pin nail body 1 is provided with vertical screw hole 5, is used to hold the screw that connects sighting device.
For cooperating the injury of the bone, intramedullary pin nail body is provided with certain camber line (referring to Fig. 2), and general radian is 0.1-1, specifically can select 0.5.
Because left and right sides lower limb difference, intramedullary pin is provided with different, that is: nail about intramedullary pin divides, and two proximal lateral mouths 2 of left intramedullary pin are all opened to the left, and two proximal lateral mouths 2 of right intramedullary pin are all opened to the right.
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 (8)
1. the elasticity fine motion is slided to pressurize not have and blocked the thigh 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 blocked the thigh intramedullary nail with lock, it is characterized in that: described intramedullary pin nail body middle part has radian.
3. elasticity fine motion according to claim 2 is slided to pressurize not have and is blocked the thigh intramedullary nail with lock, and it is characterized in that: described radian is 0.1-1.
4. the elasticity fine motion according to claim 1 pressurization of sliding does not have and blocks the thigh intramedullary nail with lock, it is characterized in that: the proximal lateral mouth of described two mesopores is in the same side, and the distal side mouth is at homonymy not.
5. elasticity fine motion according to claim 1 is slided to pressurize not have and is blocked the thigh intramedullary nail with lock, and it is characterized in that: described thigh bone refers to Thigh bone.
6. elasticity fine motion according to claim 1 is slided to pressurize not have and blocked the thigh intramedullary nail with lock, it is characterized in that: described intramedullary pin nail body is a cylinder.
7. elasticity fine motion according to claim 1 is slided to pressurize not have and blocked the thigh 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.
8. block the thigh intramedullary nail with lock according to claim 1 or 2 or 4 described elasticity fine motions slip pressurization nothings, it is characterized in that: nail about described intramedullary pin divides, intramedullary pin two proximal lateral mouths in a left side are all opened to the left, and two proximal lateral mouths of right intramedullary pin are all opened to the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206414845U CN201879811U (en) | 2010-12-05 | 2010-12-05 | Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206414845U CN201879811U (en) | 2010-12-05 | 2010-12-05 | Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201879811U true CN201879811U (en) | 2011-06-29 |
Family
ID=44177331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206414845U Expired - Fee Related CN201879811U (en) | 2010-12-05 | 2010-12-05 | Elastic micro-motion slidable pressurized unboarded interlocking intramedullary nail for thigh |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201879811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815959A (en) * | 2012-11-16 | 2014-05-28 | 上海底特精密紧固件股份有限公司 | Bone screw |
| CN105011998A (en) * | 2015-08-19 | 2015-11-04 | 赵旭 | Wing-shaped intramedullary nail |
-
2010
- 2010-12-05 CN CN2010206414845U patent/CN201879811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815959A (en) * | 2012-11-16 | 2014-05-28 | 上海底特精密紧固件股份有限公司 | Bone screw |
| CN105011998A (en) * | 2015-08-19 | 2015-11-04 | 赵旭 | Wing-shaped intramedullary nail |
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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: 20110629 Termination date: 20111205 |