CN204033462U - A kind of ulna intramedullary nail with lock - Google Patents
A kind of ulna intramedullary nail with lock Download PDFInfo
- Publication number
- CN204033462U CN204033462U CN201420490996.4U CN201420490996U CN204033462U CN 204033462 U CN204033462 U CN 204033462U CN 201420490996 U CN201420490996 U CN 201420490996U CN 204033462 U CN204033462 U CN 204033462U
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- CN
- China
- Prior art keywords
- solid fixed
- fixed bar
- ulna
- lock body
- intramedullary nail
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Abstract
The utility model discloses a kind of ulna intramedullary nail with lock, comprise the solid fixed bar of the arc that medical stainless steel is made, solid fixed bar far-end is provided with the fixing head of the Duckbill type of making one-body molded with it, near-end is provided with the hollow lock body with pinning installing hole, angle between solid fixed bar and hollow lock body is 0 degree, and the radian of the solid fixed bar of ulna is identical with ulna pulp cavity physiological camber.The solid fixed bar of the arc made owing to adopting medical stainless steel, after implanting, fracture reduction is effective, adopt the fixing head of Duckbill type can well be fixed in marrow by solid fixed bar simultaneously, prevent solid fixed bar to move in marrow and the injury caused human body.The shape of this solid fixed bar is triangular prism shaped, because triangle has stability, therefore well can fix ulna.In addition, this intramedullary pin wound is little, is convenient to closed reduction and implants, and structure is simple, with low cost, convenient and practical, suitable apply.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of ulna intramedullary nail with lock.
Background technology
The fixing means of current orthopaedics therapy ulnar fracture also exists not enough: 1. lack dissection radian, after implanting, fracture reduction is bad; 2. far-end locking implants difficulty; 3. need operative incision, wound is large, is unfavorable for that closed reduction is implanted.
Utility model content
This utility model, in order to solve the problems of the technologies described above, provides a kind of fracture reduction good, the ulna intramedullary nail with lock that stability maintenance is high.
This utility model is achieved through the following technical solutions:
A kind of ulna intramedullary nail with lock, comprise the solid fixed bar of the arc that medical stainless steel is made, described solid fixed bar far-end is provided with the fixing head of the Duckbill type of making one-body molded with it, near-end is provided with the hollow lock body with pinning installing hole, angle between solid fixed bar and hollow lock body is 0 degree, and the solid fixed bar radian of ulna is identical with ulna pulp cavity physiological camber.
Described solid fixed bar shape is triangular prism shaped, and triangular prism shaped circumscribed circle size is less than the inner wall size of ulna pulp cavity.
Described hollow lock body inner chamber is provided with female thread, is provided with the externally threaded shutoff nut of band in hollow lock body inner chamber.
Compared with prior art, this utility model has following useful technique effect:
This utility model ulna intramedullary nail with lock, the solid fixed bar of the arc made owing to adopting medical stainless steel, after implanting, fracture reduction is effective, adopt the fixing head of Duckbill type can well be fixed in marrow by solid fixed bar simultaneously, prevent solid fixed bar to move in marrow and the injury caused human body.
Further, the shape of this solid fixed bar is triangular prism shaped, because triangle has stability, therefore well can fix ulna.
Further, in described hollow lock body inner chamber, threaded shutoff nut is installed, therefore can well prevents in the process of human body recovery, area of new bone grow into nail give remove pinning make troubles.
In addition, this intramedullary pin wound is little, is convenient to closed reduction and implants, and structure is simple, with low cost, convenient and practical, suitable apply.
Further, the angle between the locking solid fixed bar of described ulna and hollow lock body is 0 degree, meets normal people's ulna pulp cavity physiological angle so completely, on biomechanics, make fixing reliable, internal stress is little.
Accompanying drawing explanation
The ulna intramedullary nail with lock structural representation that Fig. 1 provides for this utility model.
Wherein: 1 is solid fixed bar; 2 is fixing head; 3 is hollow lock body; 4 is pinning installing hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail:
See Fig. 1, a kind of ulna intramedullary nail with lock, comprises the solid fixed bar 1 of the arc that medical stainless steel is made, and the radian of the solid fixed bar 1 of described ulna is identical with ulna pulp cavity physiological camber; Described solid fixed bar 1 shape is triangular prism shaped, and triangular prism shaped size is less than the inner wall size of ulna pulp cavity; Described solid fixed bar 1 far-end is provided with the fixing head 2 of the Duckbill type of making one-body molded with it, near-end is provided with the hollow lock body 3 with pinning installing hole 4, angle between solid fixed bar 1 and hollow lock body 3 is 0 degree, described hollow lock body 3 inner chamber is provided with female thread, the externally threaded interior hexagonal shutoff nut of band is installed in hollow lock body inner chamber, can well prevent in the process of human body recovery, the area of new bone of initiation is grown into after pinning installing hole 4 and is made troubles to removing pinning.
Concrete, the tangent plane of this triangular prism shaped solid fixed bar 1 is triangle, and this leg-of-mutton circumradius is 3.6mm, and can obtain the leg-of-mutton length of side by computing formula is 6.2352mm.Wherein, solid fixed bar 1 is 0.5mm with the difference in height of the junction, inclined-plane of duckbilled fixing head 2.
Meanwhile, the tangent plane of this triangular prism shaped solid fixed bar 1 is triangle, and this leg-of-mutton circumradius is 3.2mm, and can obtain the leg-of-mutton length of side by computing formula is 5.5424mm.
During use, this intramedullary pin is put into ulna pulp cavity, then pinning is inserted in pinning installing hole, replacement and fixation is carried out to ulna.
Meanwhile, described hollow lock body 3 and fixing head 2 also adopt medical stainless steel material to make, and its end has round and smooth edging, can prevent the scratch produced human body like this.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this utility model.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a ulna intramedullary nail with lock, it is characterized in that, comprise the solid fixed bar (1) of the arc that medical stainless steel is made, described solid fixed bar (1) far-end is provided with the fixing head (2) of the Duckbill type of making one-body molded with it, near-end is provided with the hollow lock body (3) with pinning installing hole (4), angle between solid fixed bar (1) and hollow lock body (3) is 0 degree, and the radian of the solid fixed bar (1) of ulna is identical with ulna pulp cavity physiological camber.
2. ulna intramedullary nail with lock according to claim 1, is characterized in that, described solid fixed bar (1) shape is triangular prism shaped, and triangular prism shaped circumscribed circle size is less than the inner wall size of ulna pulp cavity.
3. ulna intramedullary nail with lock according to claim 1, is characterized in that, described hollow lock body (3) inner chamber is provided with female thread, is provided with the externally threaded shutoff nut of band in hollow lock body inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490996.4U CN204033462U (en) | 2013-11-07 | 2014-08-28 | A kind of ulna intramedullary nail with lock |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695739.X | 2013-11-07 | ||
| CN201320695739 | 2013-11-07 | ||
| CN201420490996.4U CN204033462U (en) | 2013-11-07 | 2014-08-28 | A kind of ulna intramedullary nail with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204033462U true CN204033462U (en) | 2014-12-24 |
Family
ID=52234185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490996.4U Expired - Fee Related CN204033462U (en) | 2013-11-07 | 2014-08-28 | A kind of ulna intramedullary nail with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204033462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420029A (en) * | 2016-05-11 | 2017-02-22 | 中国人民解放军第三〇七医院 | Radius cap intramedullary nail |
-
2014
- 2014-08-28 CN CN201420490996.4U patent/CN204033462U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420029A (en) * | 2016-05-11 | 2017-02-22 | 中国人民解放军第三〇七医院 | Radius cap intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160524 Address after: 710000 No. 17 West Changle Road, Xincheng District, Shaanxi, Xi'an Patentee after: The Fourth Military Medical University of the Chinese People's Liberation Army Address before: High tech Zone 710000 Shaanxi city of Xi'an Province Tang Yan Road No. 11 I Plaza Garden will be 3 Building 3 unit 1412 room Patentee before: Chen Jun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20170828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |