CN2053505U - Groove type thread tooth stress steel plate - Google Patents
Groove type thread tooth stress steel plate Download PDFInfo
- Publication number
- CN2053505U CN2053505U CN 89214494 CN89214494U CN2053505U CN 2053505 U CN2053505 U CN 2053505U CN 89214494 CN89214494 CN 89214494 CN 89214494 U CN89214494 U CN 89214494U CN 2053505 U CN2053505 U CN 2053505U
- Authority
- CN
- China
- Prior art keywords
- steel plate
- stress
- bone
- groove type
- thread tooth
- 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.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 208000010392 Bone Fractures Diseases 0.000 abstract description 9
- 206010017076 Fracture Diseases 0.000 abstract description 9
- 230000035876 healing Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 3
- 208000006386 Bone Resorption Diseases 0.000 description 1
- 210000001185 bone marrow Anatomy 0.000 description 1
- 230000024279 bone resorption Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000011164 ossification Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to a groove type thread tooth stress steel plate, belonging to the medical instrument for fracture of limb long-bone. A long concave plate is provided with a plurality of elliptical screw-holes, and along the screw-threads rolling direction, a plurality of teeth is arranged on protruding ribs of both sides. Overcoming the protect action for stress-concentration and stress shielding of various existing steel plate, the utility model enables the fractured ends to be tightly engaged along the y-axis of the long-bone, favorable to fracture healing.
Description
This utility model belongs to treatment extremity long bone shaft fracture medical apparatus and instruments.
General therapeutic extremity long bone shaft fracture; medullary cavity internal fixation method and the bone marrow place bone surface fixing meanss of adopting more; medullary cavity place bone surface fixing means is to use type steel plates such as general steel plate, compression steel plate, heterotype steel plate and grooved steel plate respectively; be fixed on the bone surface by screw; its shortcoming is the steel plate stress concentration and produces the stress shielding protective effect; the steel plate stress concentration can cause steel plate to fracture; stress shielding protective effect meeting reduces surface of bone stress; cause bone formation minimizing and bone resorption to increase, be unfavorable for the fracture healing.
The purpose of this utility model is to provide a kind of grooved thread stress steel plate that adopts concave structure and be provided with thread.
The purpose of utility model is achieved in that being and is provided with several oval-shaped screws on the long shaped plate of concavity, by the screw thread rotation direction many teeth is set at two side convex rib places.
This utility model is because of adopting concave structure; can improve armor plate strength; setting is towards the thread at steel plate center; can make the longitudinal axis tight engagement of the end of fracture along long bone; make firm being fixed on the bone surface of thread simultaneously; reach stress is disperseed; prevent the purpose of steel plate fracture; on steel plate, be provided with oval-shaped screw; can make steel plate produce corresponding displacement, in a word, steel plate is under the bed knife effect of the contractility of muscle and screw; for union of fracture provides advantageous conditions, overcome the existing stress concentration of present all kinds steel plate and produced the stress shielding protective effect.
Concrete structure of the present utility model is provided by the accompanying drawing of embodiment.
Accompanying drawing 1 is a grooved thread stress steel plate front view.
Accompanying drawing 2 is a grooved thread stress steel plate side view.
Accompanying drawing 3 is grooved thread stress section of steel plate figure.
Get the grooved steel on the certain-length, be drilled with two oval-shaped screws 2 respectively at its two ends, by screw thread rotation direction (dextrorotation derotation all can) the fin place of every side is milled out six teeth 1, will leave corresponding distance between the tooth 1 of steel plate transverse center both sides and the elliptical aperture 2, grooved thread stress steel plate can select for use rustless steel to manufacture.
Claims (1)
- Grooved thread stress steel plate is characterized in that being provided with several ellipse screws 2 on the long shaped plate of concavity being, and according to the screw thread rotation direction many teeth 1 is set at two side convex rib places.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214494 CN2053505U (en) | 1989-07-21 | 1989-07-21 | Groove type thread tooth stress steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89214494 CN2053505U (en) | 1989-07-21 | 1989-07-21 | Groove type thread tooth stress steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2053505U true CN2053505U (en) | 1990-02-28 |
Family
ID=4870274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89214494 Withdrawn CN2053505U (en) | 1989-07-21 | 1989-07-21 | Groove type thread tooth stress steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2053505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542497C (en) * | 2004-06-01 | 2009-09-23 | 辛迪思有限公司 | Osteosynthesis plate |
-
1989
- 1989-07-21 CN CN 89214494 patent/CN2053505U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542497C (en) * | 2004-06-01 | 2009-09-23 | 辛迪思有限公司 | Osteosynthesis plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |