CN2595328Y - Automatic pressurizing intramedullary pin with lock - Google Patents
Automatic pressurizing intramedullary pin with lock Download PDFInfo
- Publication number
- CN2595328Y CN2595328Y CN 02255484 CN02255484U CN2595328Y CN 2595328 Y CN2595328 Y CN 2595328Y CN 02255484 CN02255484 CN 02255484 CN 02255484 U CN02255484 U CN 02255484U CN 2595328 Y CN2595328 Y CN 2595328Y
- Authority
- CN
- China
- Prior art keywords
- nail
- pressurization
- self
- chute
- interior
- 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
- 230000035876 healing Effects 0.000 abstract description 3
- 206010017076 Fracture Diseases 0.000 abstract 4
- 208000010392 Bone Fractures Diseases 0.000 abstract 3
- 210000003275 diaphysis Anatomy 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000002085 persistent effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an automatic pressurizing intramedullary nail with lock, which can continuously pressurize the fracture end and simultaneously resist the fracture end to rotate. Is suitable for internal fixation of various types of fractures of limbs long tubular bone diaphysis. The device mainly comprises a main needle (3), an inner interlocking hole (4), an outer interlocking hole (5), an outer interlocking nail (6), an inner interlocking nail (7), an outer pressing chute (10), an inner pressing chute (8), a pressing spring (12), a pressing screw rod (2) and the like. Has the characteristics of rapid fracture healing, once successful operation and the like.
Description
This utility model relate to a kind of on existing fixing interlocking intramedullary nail basis improved automatic pressurization intramedullary nail with nail, be mainly used in the key various types of fracture internal fixation of limb long tubular bone.
Treatment tubular bone shaft fracture generally adopts fixing interlocking intramedullary nail to fix at present, because the existence of self-locking nail hinders the contact of fracture end, makes fracture end lack stress, prolongs healing time.
This utility model is improved on existing intramedullary nail with nail technical foundation, fixedly is improved to dynamic property by original firm static and fixes, and can make the fracture end persistent pressure, and the anti-rotation of fracture end simultaneously can make once success of operation.
This utility model is made up of main pin, diplomatic lockhole, interior interlocking hole, interior self-locking nail, outer self-locking nail, it is characterized in that the main pin other end is opened interior pressurization chute and the chute that pressurizes outward, pressurization self-locking nail and outer pressurization self-locking nail in being equipped with respectively in the groove, pressing spring is equipped with in the outer pressurization self-locking nail outside, the pressing spring other end is equipped with the pressurization screw rod, the spinning in and out but the outer silk of pressurization screw rod matches with main pin internal thread, inner hexagonal hole is arranged at pressurization screw rod top.
This utility model using method and navigation system and normal tape marrow-locking inner needle are basic identical.When turn forcing screw certain position inwards, pressing spring pressure acts on outer pressurization self-locking nail, outer pressurization self-locking nail and interior pressurization self-locking nail pressurize respectively outside, and chute is interior to slide with interior pressurization chute is interior, make the fracture end persistent pressure by the inside and outside self-locking nail in interior interlocking hole and the diplomatic lockhole, accelerating bone healing, and can make the anti-rotation of fracture end, make the fixing once success of motorization.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further described.Accompanying drawing is the structural representation of utility model.Among the figure, 1-inner hexagonal hole, the 2-screw rod that pressurizes, interlocking hole in the 3-master's pin, 4-, 5-diplomacy lockhole, the outer self-locking nail of 6-, pressurization chute in the self-locking nail in the 7-, 8-, pressurization self-locking nail in the 9-, the 10-chute that pressurizes outward, the 11-self-locking nail that pressurizes outward, 12-pressing spring.
Embodiment of the present utility model is a kind of automatic pressurization intramedullary nail with nail of stainless steel structure, by main pin (3), interior interlocking hole (4), diplomatic lockhole (5), outer self-locking nail (6), interior self-locking nail (7), interior pressurization self-locking nail (9), the self-locking nail (11) that pressurizes is formed outward, and is basic identical with prior art.In main pin (3) other end is opened pressurization chute (8) and outside the chute (10) that pressurizes, inner chamber one end mantle fiber also is equipped with pressing spring (12), pressing spring (12) one ends promote outer pressurization self-locking nail (11), the other end acts on pressurization screw rod (2), uses the rotatable inner hexagonal hole of Allen wrench (1) to adjust the pressure size.
Claims (2)
1, a kind of on existing intramedullary nail with nail basis improved automatic pressurization intramedullary nail with nail, comprise main pin (3), interior interlocking hole (4), diplomatic lockhole (5), outer self-locking nail (6), interior self-locking nail (7), interior pressurization self-locking nail (9), the self-locking nail (11) that pressurizes outward, it is characterized in that main pin (3) inner chamber is equipped with pressing spring (12), and contact pressurization chute (8) in an end is opened, the chute (10) that pressurizes outward with pressurization screw rod (2).
2, automatic pressurization intramedullary nail with nail according to claim 1, screw rod (2) top that it is characterized in that pressurizeing has inner hexagonal hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255484 CN2595328Y (en) | 2002-11-20 | 2002-11-20 | Automatic pressurizing intramedullary pin with lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255484 CN2595328Y (en) | 2002-11-20 | 2002-11-20 | Automatic pressurizing intramedullary pin with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2595328Y true CN2595328Y (en) | 2003-12-31 |
Family
ID=33723971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255484 Expired - Fee Related CN2595328Y (en) | 2002-11-20 | 2002-11-20 | Automatic pressurizing intramedullary pin with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2595328Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416900B (en) * | 2007-10-28 | 2011-08-17 | 王秋霞 | External fixation rack elasticity device |
-
2002
- 2002-11-20 CN CN 02255484 patent/CN2595328Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416900B (en) * | 2007-10-28 | 2011-08-17 | 王秋霞 | External fixation rack elasticity device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUN DEXIU Free format text: FORMER OWNER: JI WANJIN Effective date: 20080418 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080418 Address after: Weifang three dimensional Department of orthopedics Medical Instrument Research Institute, Shandong 261041, China Patentee after: Sun Dexiu Address before: Department of surgery, people's Hospital of Shandong County, Dingtao province 274100 Patentee before: Ji Wanjin |
|
| 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 |