CN202458650U - Fixing bone nail capable of being broken and locking plate using same - Google Patents
Fixing bone nail capable of being broken and locking plate using same Download PDFInfo
- Publication number
- CN202458650U CN202458650U CN2012200150452U CN201220015045U CN202458650U CN 202458650 U CN202458650 U CN 202458650U CN 2012200150452 U CN2012200150452 U CN 2012200150452U CN 201220015045 U CN201220015045 U CN 201220015045U CN 202458650 U CN202458650 U CN 202458650U
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- nail
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- locking plate
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Abstract
The utility model discloses a fixing bone nail capable of being broken. The fixing bone nail comprises a nail head and a nail tail, wherein the front end of the nail head has a tip, the back end of the nail head is provided with a tail with an enlarging diameter, the tail comprises an outer screw area matched with a locking plate and a screw cap area, and a broken part with a narrowing diameter is arranged on the joint between the nail tail and the screw cap area. The utility model also provides a locking plate matched with the fixing bone nail. When the locking plate is used, the fixing plate is fixed on a proper position, and the tail connected to the nail tail is knocked or drilled so as to let the bone nail enter the necessary fixing position. After all bone nails are fixed on the proper positions, the bone nails can be screwed in the locking holes of the locking plate, and the bone nails are broken. If the bone nails need to be taken out, the screw cap area is turned by tools. The bone nail and the locking plate are easy to operate, and the bone nail can be tightly locked; after locking, the bone nails are fixed on the positions, so the bone nails cause less damage to bones; therefore, the bone nail and the locking plate are quite suitable for operations of fracture of metaphysis of teenagers.
Description
Technical field
This utility model belongs to medical instruments field, relates to a kind of broken fixing bone pin particularly and uses the lockplate of this nail.
Background technology
Nail is an orthopaedics apparatus commonly used clinically.Do epiphyseal fracture for teenager, adopt Kirschner wire or steinman pin to fix usually, diameter is consistent before and after them, and smooth surface, when fixing fracture site, and the phenomenon that occurs loose shift easily or deviate from.Thereby can cause fixed effect not good, situation about need retighten.Disclose the broken osseous pin of a kind of pressurization among the Chinese patent CN200920020559, it comprises needle body, and needle body is cylindric; The front and back diameter is consistent; One end of needle body is provided with needle point, and the other end is provided with backshank, and this backshank is gradually thick shape; The surface of backshank is provided with screw thread, and the rear side of backshank is provided with action bars.In the time of should using, utilize this backshank thread surface to pierce fracture site, this screw thread can play the effect of good self tapping pressurization and fixing fracture.But; As this osseous pin is used for metaphysis fracture, owing to utilize the backshank thread surface to pierce fracture site, this screw thread will increase metaphyseal destruction; Be prone to after the union of fracture to cause limbs in turn up or the length deformity, particularly the teenager in the growth is had adverse effect.In addition, also be unfavorable for adjusting degree of tightness and taking-up after this spicule is fixed.Above-mentioned situation has all increased the painful of patient and operation cost.
The utility model content
The purpose of this utility model is to provide a kind of broken fixing bone pin, to solve the problems referred to above that exist in the prior art.
Another purpose of this utility model is to provide a kind of lockplate, and it is used for using with aforesaid broken fixedly secure fit.
The technical scheme that this utility model provides is following:
A kind of broken fixing bone pin comprises a syringe needle and a backshank, and the front end of this syringe needle has the tip, it is characterized in that:
The rear end of this syringe needle is provided with the afterbody that a diameter enlarges, and this afterbody comprises that one is used for the external screw thread district and the nut district that cooperate with lockplate, and the junction in backshank and nut district is provided with the place that fractures that a diameter dwindles.
Preferably, this syringe needle is cylindrical, and the front and back diameter is consistent.
Preferably, this external screw thread district by front end to the back-end diameter enlarge gradually.
Preferably, this nut district is connected to after the external screw thread district, and its diameter is terminal littler than external screw thread district.
Preferably, the rear end of this backshank is provided with operating portion.
A kind of lockplate is distributed with the lock hole of a plurality of different directions on this lockplate, be provided with the female thread that the external screw thread district of the syringe needle afterbody of aforesaid broken fixing bone pin cooperates in the described lock hole.
Can know by foregoing description; This utility model provides a kind of broken fixing bone pin; It comprises a syringe needle and a backshank, and the front end of this syringe needle has the tip, and the rear end of its special this syringe needle is provided with the afterbody that a diameter enlarges; This afterbody comprises that one is used for the external screw thread district and the nut district that cooperate with lockplate, and the junction in backshank and nut district is provided with the place that fractures that a diameter dwindles.This utility model also provides a kind of lockplate that cooperates with this broken fixing bone pin.During use, can establish the position of fixing head, knock the tail end of this backshank or the tail end that electric drill connects this backshank then, make spicule get into required fixed position.After each spicule is all squeezed into, the spicule that fractures, reuse instrument rotary nut district, then spicule can screw in the lock hole of lockplate.
Because the round needle of background technology relies on the screw thread self tapping to fix; This screw thread must have certain length and certain diameter just can be fixed in the skeleton; Screw thread is big to skeletal injury like this; The external screw thread district of this utility model afterbody does not pierce in the skeleton, but cooperates with lockplate, thereby has avoided the damage of the tapping screw thread in the background technology to skeleton.In addition; This utility model be owing to needn't utilize screw thread to be fixed in the skeleton, but can utilize on the lockplate chucking power that fixed bone spicule produced of several different directions to fix, thereby; The syringe needle diameter design of this utility model can be littler, and this has also reduced the damage to skeleton.This utility model also is provided with the nut district, is convenient to spicule entering desired location and fractures adjust degree of tightness and the taking-up of healing back afterwards again, and it is quick that operation is very easy, reduced operating time and patient's misery; Locking is firm, and after the locking, position stability makes spicule reduce the damage of skeleton, is particularly suitable for the operation of teenager metaphysis fracture.
Description of drawings
Fig. 1 is the perspective view of the broken fixing bone pin of this utility model embodiment one;
Fig. 2 is the structure for amplifying sketch map at A place among Fig. 1;
Fig. 3 is the plan structure sketch map of broken fixing bone pin;
Fig. 4 is the perspective view of the broken fixing bone pin of this utility model embodiment two;
Fig. 5 is the perspective view of the lockplate of this utility model;
Fig. 6 is the nail of this utility model embodiment one and the cooperation sketch map of lockplate.
The specific embodiment
Embodiment one
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of broken fixing bone pin 1 of this utility model comprises a syringe needle 12 and a backshank 11.The front end of this syringe needle 12 is provided with the tip 16 of band sword, and the rear end of this backshank 11 is provided with operating portion 17.This operating portion 17 has three seamed edges, and cross section is a triangle.The major part of this syringe needle 12 is cylindrical, and the front and back diameter is consistent.
The rear end of this syringe needle 12 is provided with the afterbody that a diameter enlarges, and this afterbody comprises a threaded area 13 and a nut district 14, this threaded area 13 by front end to the back-end diameter enlarge gradually.This nut district 14 is connected to after the threaded area, and its diameter is terminal more smaller than threaded area 13.
The junction in backshank 11 and nut district 14 is provided with a diameter diminution part, and this dwindles portion and forms a groove 15, and this dwindles portion and comprises a broken place 151 and a transition region 152.The diameter of this transition region 152 is carried out the transition to the diameter of backshank 11 by broken place 151.
Embodiment two
Referring to Fig. 4, the basic structure of the broken fixing bone pin 1 ' of present embodiment is identical with embodiment one, and different is that in the present embodiment, the front end of this broken fixing bone pin 1 ' also is provided with a threaded area 18.
Embodiment three
Referring to Fig. 5, the lockplate 2 of this utility model is the sole shape, is distributed with a plurality of lock holes 21 on this lockplate 2, and wherein the axis direction of each lock hole 21 is non-parallel direction.Be provided with the female thread that the external screw thread district 13 with the afterbody of the syringe needle 12 of broken fixing bone pin 1 or 1 ' cooperates in the lock hole 21.
Embodiment four
Referring to Fig. 6, be the broken fixing bone pin 1 of embodiment one and the fit structure sketch map of the lockplate 2 among the embodiment three.During use, established the position of fixing head 2 earlier, the tail end 17 or the electric drill that knock the backshank 11 of spicule 1 then connect the tail end 17 of this backshank 11, make spicule pierce required fixed position.After three broken fixing bone pins 1 pass from the lock hole 21 of three different directions settings of lockplate 2 respectively; The afterbody 11 of each spicule fractures from broken 151 places; Reuse instrument rotary nut district 14, then spicule 1 can screw in the lock hole 21 of lockplate 2, accomplishes fixing.
The above-mentioned specific embodiment that is merely this utility model, but the design concept of this utility model is not limited thereto allly utilizes this design that this utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading this utility model protection domain.
Claims (6)
1. broken fixing bone pin; Comprise a syringe needle and a backshank; The front end of this syringe needle has the tip; It is characterized in that: the rear end of this syringe needle is provided with the afterbody that a diameter enlarges, and this afterbody comprises that one is used for the external screw thread district and the nut district that cooperate with lockplate, and the junction in backshank and nut district is provided with the place that fractures that a diameter dwindles.
2. a kind of broken fixing bone pin as claimed in claim 1 is characterized in that: this syringe needle is cylindrical, and the front and back diameter is consistent.
3. a kind of broken fixing bone pin as claimed in claim 1 is characterized in that: this external screw thread district by front end to the back-end diameter enlarge gradually.
4. a kind of broken fixing bone pin as claimed in claim 1 is characterized in that: this nut district is connected to after the external screw thread district, and its diameter is terminal littler than external screw thread district.
5. a kind of broken fixing bone pin as claimed in claim 1, it is characterized in that: the rear end of this backshank is provided with operating portion.
6. lockplate is characterized in that: be distributed with the lock hole of a plurality of different directions on this lockplate, be provided with the female thread that the external screw thread district with the syringe needle afterbody of each described broken fixing bone pin of claim 1 to 5 cooperates in the described lock hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200150452U CN202458650U (en) | 2012-01-11 | 2012-01-11 | Fixing bone nail capable of being broken and locking plate using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200150452U CN202458650U (en) | 2012-01-11 | 2012-01-11 | Fixing bone nail capable of being broken and locking plate using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202458650U true CN202458650U (en) | 2012-10-03 |
Family
ID=46906858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200150452U Expired - Fee Related CN202458650U (en) | 2012-01-11 | 2012-01-11 | Fixing bone nail capable of being broken and locking plate using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202458650U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525636A (en) * | 2012-01-11 | 2012-07-04 | 黄长明 | Fixing bone nail capable of being broken and locking plate comprising bone nail |
| CN107299761A (en) * | 2017-06-30 | 2017-10-27 | 中国建筑第五工程局有限公司 | A kind of method of fixed building line box |
-
2012
- 2012-01-11 CN CN2012200150452U patent/CN202458650U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525636A (en) * | 2012-01-11 | 2012-07-04 | 黄长明 | Fixing bone nail capable of being broken and locking plate comprising bone nail |
| CN107299761A (en) * | 2017-06-30 | 2017-10-27 | 中国建筑第五工程局有限公司 | A kind of method of fixed building line box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20180111 |