CN200987700Y - Continuous pressing cross locking intramedullary nail - Google Patents
Continuous pressing cross locking intramedullary nail Download PDFInfo
- Publication number
- CN200987700Y CN200987700Y CN 200620039589 CN200620039589U CN200987700Y CN 200987700 Y CN200987700 Y CN 200987700Y CN 200620039589 CN200620039589 CN 200620039589 CN 200620039589 U CN200620039589 U CN 200620039589U CN 200987700 Y CN200987700 Y CN 200987700Y
- Authority
- CN
- China
- Prior art keywords
- intramedullary nail
- nail
- intramedullary
- persistent pressure
- near end
- 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
- 230000002085 persistent effect Effects 0.000 claims description 27
- 210000000988 bone and bone Anatomy 0.000 abstract description 9
- 206010020649 Hyperkeratosis Diseases 0.000 abstract description 4
- 230000035876 healing Effects 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001739 rebound effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
An interlocking intramedullary nail which can make the two ends of the fracture produce continuous pressure is characterized in that: the remote end of the intramedullary nail has 1-2 locking nail to avoid the remote bone block rotating. The near end of the intramedullary nail is provided with a sliding groove passing the cross section of the intramedullary nail and parallel vertically and laterally with the intramedullary nail, and the two ends thereof are semicircle shape. The sliding groove is a the lock nail position of the near end, and makes the bone blocks of the near end and remote end rotate to be disappeared after the lock nail is disposed. The near end back part of the intramedullary nail is provided with a tail hat to stop the callus grow to the intramedullary nail, and the back hat and the lock nail back part are provided with an elastic object to continuously put pressure to the intramedullary nail by the lock nail along the sliding groove direction.
Description
Technical field: this utility model relates to a kind of medical orthopaedics internal fixation material, is a kind of persistent pressure interlocking intramedullary nail specifically.
Background technology: along with the development of traffic and building industry, all kinds of accidents are in continuous increase, the internal fixation material of orthopaedics and technology are also constantly being upgraded and are being developed, but existing internal fixation material is static fixing mostly, this produces the stress shielding of biomechanics inevitably, there are a lot of patients therefore to produce bone does not connect, cause very big misery to patient.
Summary of the invention: in order to overcome the deficiency that existing interlocking intramedullary nail stationary also unavoidably produces the stress shielding of biomechanics, this utility model provides a kind of persistent pressure interlocking intramedullary nail, this persistent pressure interlocking intramedullary nail can not only make the stable and rotary moveable disappearance of the line of force of fracture two ends, can also produce the pressurization that continues at fracture two ends.
The technical scheme that its technical problem that solves this utility model adopts is: the far-end at intramedullary pin has 1-2 piece of pinning that runs through intramedullary pin, near-end at intramedullary pin has the chute parallel with the intramedullary pin longitudinal axis of always wearing the intramedullary pin cross section, its two end is semicircle, this chute also is the proximal locking nail hole position, near-end afterbody at intramedullary pin has a tail medicated cap, between tail medicated cap and afterbody pinning an elastomeric objects is arranged.Behind fracture two ends after the insertion of persistent pressure interlocking intramedullary nail resets, far-end inserts two pieces of pinnings, y direction between distal bone folded block and the persistent pressure interlocking intramedullary nail is slided and the rotary moveable disappearance, nearside in persistent pressure interlocking intramedullary nail near-end rectangle interlocking hole inserts one piece of pinning, the rotary moveable of persistent pressure interlocking intramedullary nail and near-end bone interblock is disappeared, the elastomeric objects of between sealing medicated cap and near-end pinning, packing into, be screwed into the tail medicated cap and oppress this elastomeric objects, because elastomeric objects has rebound effect, under the effect of elastomeric objects, can produce by the persistent pressure interlocking intramedullary nail and two to support continuous pressurization, thereby realize that fracture end has the purpose of persistent pressure power fracturing.
The beneficial effects of the utility model are, can make fracture end produce the plus-pressure that continues, and the line of force of two ends that can keep fracturing is stable and spin stabilization, the advantage that has kept interlocking intramedullary nail, overcome the shortcoming of its stress shielding again, thereby promote the healing of fracture, and can make the fracture end callus of healing shift to an earlier date affected by force, increased the callus quality of healing place.
Description of drawings: Figure of description is the side profile chart after this utility model assembling is finished.
The specific embodiment: in the Figure of description, persistent pressure interlocking intramedullary nail 1 comprises far-end and near-end two parts, far-end has perpendicular to the persistent pressure interlocking intramedullary nail longitudinal axis and runs through two interlocking holes 2 of persistent pressure interlocking intramedullary nail, can insert two pieces of pinnings, y direction slip between distal bone folded block and the persistent pressure interlocking intramedullary nail is disappeared, simultaneously, the rotary moveable of persistent pressure interlocking intramedullary nail and bone interblock is disappeared.In the near-end of the persistent pressure interlocking intramedullary nail rectangle interlocking hole 3 that one two end is also arranged is semicircle, this interlocking hole longitudinal axis is parallel with the persistent pressure interlocking intramedullary nail longitudinal axis, and vertically run through the persistent pressure interlocking intramedullary nail, can insert one piece of pinning in the hole, the rotary moveable of persistent pressure interlocking intramedullary nail and near-end bone interblock is disappeared, can slide along persistent pressure interlocking intramedullary nail y direction between near-end bone piece and persistent pressure interlocking intramedullary nail.Near-end afterbody at the persistent pressure interlocking intramedullary nail has the tube chamber sealing of a tail medicated cap 4 with the persistent pressure interlocking intramedullary nail, grow in persistent pressure interlocking intramedullary nail uropore to stop callus, one elastomeric objects 5 is arranged between tail medicated cap and near-end pinning, the tail medicated cap is oppressed this elastomeric objects when the persistent pressure interlocking intramedullary nail is screwed into, pressure is reached the near-end pinning, because elastomeric objects has rebound effect, after operation is finished, under the effect of elastomeric objects, can produce by the persistent pressure interlocking intramedullary nail and two to support continuous pressurization, thereby realize that fracture end has the purpose of lasting pressure fracturing.
Claims (1)
- A kind of persistent pressure interlocking intramedullary nail, it is characterized in that: the far-end at intramedullary pin has 1-2 piece of pinning that runs through intramedullary pin, near-end at intramedullary pin has the chute parallel with the intramedullary pin longitudinal axis of always wearing the intramedullary pin cross section, its two end is semicircle, this chute also is the proximal locking nail hole position, near-end afterbody at intramedullary pin has a tail medicated cap, between tail medicated cap and afterbody pinning an elastomeric objects is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039589 CN200987700Y (en) | 2006-02-20 | 2006-02-20 | Continuous pressing cross locking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039589 CN200987700Y (en) | 2006-02-20 | 2006-02-20 | Continuous pressing cross locking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200987700Y true CN200987700Y (en) | 2007-12-12 |
Family
ID=38938746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039589 Expired - Fee Related CN200987700Y (en) | 2006-02-20 | 2006-02-20 | Continuous pressing cross locking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200987700Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110215269A (en) * | 2019-06-14 | 2019-09-10 | 陈聚伍 | The miniature intramedullary nail of controllable rotating resistant to separation |
| CN111728684A (en) * | 2015-06-04 | 2020-10-02 | 爱派司生技股份有限公司 | A fixation device for femoral fractures |
-
2006
- 2006-02-20 CN CN 200620039589 patent/CN200987700Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728684A (en) * | 2015-06-04 | 2020-10-02 | 爱派司生技股份有限公司 | A fixation device for femoral fractures |
| CN110215269A (en) * | 2019-06-14 | 2019-09-10 | 陈聚伍 | The miniature intramedullary nail of controllable rotating resistant to separation |
| CN110215269B (en) * | 2019-06-14 | 2024-07-16 | 陈聚伍 | Controllable rotary anti-separation miniature 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: 20071212 |