CN205251666U - Controllable pressurization intramedullary nail - Google Patents
Controllable pressurization intramedullary nail Download PDFInfo
- Publication number
- CN205251666U CN205251666U CN201521051173.2U CN201521051173U CN205251666U CN 205251666 U CN205251666 U CN 205251666U CN 201521051173 U CN201521051173 U CN 201521051173U CN 205251666 U CN205251666 U CN 205251666U
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- China
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- nail
- intramedullary nail
- pressurization
- hole
- pinning
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Abstract
The utility model discloses a controllable pressurization intramedullary nail, the intramedullary nail owner nail that is near -end and distal end including both ends respectively, one section of being close to the distal end of intramedullary nail owner nail is equipped with two first locking holes that are used for passing the pinning, intramedullary nail owner nail is close to a section of near -end and is equipped with a second locking hole that is used for passing the pinning and one and is used for passing the pinning and allows the pinning to follow closely axial motion's pressurization slot hole along the intramedullary nail owner, the pressurization slot hole is located between the near -end of second locking hole and intramedullary nail owner nail, the near -end tip of intramedullary nail owner nail is equipped with the screw thread hole that extends to pressurization slot hole department to the distal end direction, the cooperation is installed and is used for promoting the distal end motion was followed closely to the pinning to the intramedullary nail owner along the pressurization slot hole pressurization plug screw in the screw hole. The controllable pressurization that the broken ends of fractured bone is carried out to the condition can be stabilized according to observing the broken ends of fractured bone in the art to this controllable pressurization intramedullary nail's simple structure, convenient operation, easily preparation, and then reaches the stable and fixed good purpose of postoperative of broken ends of fractured bone pressurization, is favorable to the union.
Description
Technical field
The utility model relates to technical field of medical instruments, is specifically related to a kind of controllable compression intramedullary nail.
Background technology
Intramedullary nail is the conventional apparatus of orthopaedics therapy Diaphysis fracture, and clinical practice is extensive, is the goldstandard for the treatment of shaft fracture. Intramedullary nail is originally as flexible fastening, and the postoperative broken ends of fractured bone exists fine motion possibility, and excessive fine motion meeting causes postoperative fracture delayed union and nonunion, and according to the wolff law of union, the stress stimulation that increases the broken ends of fractured bone can reach the object that promotes union. At present clinically for reducing postoperative fine motion, reach the object of broken ends of fractured bone pressurization stable fracturing end in art, adopt go up fall back main nail after far-end locking and go up nearer section and lock, realize the object of broken ends of fractured bone pressurization with hope, but due to the main nail smooth surface of intramedullary nail, and frictional force between bone is very limited, in the process of upper near-end locking, due to the reason such as vibrations of when boring electric drill, often there is resilience, cause realizing the object of broken ends of fractured bone pressurization.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiency that prior art exists, provide a kind of simple in structure, easy to operate, be easy to make, can be according to the controllable compression intramedullary nail of observing the controllable compression that broken ends of fractured bone stable case carries out the broken ends of fractured bone in art.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of controllable compression intramedullary nail, comprise that two ends are respectively the main nail of intramedullary nail of near-end and far-end, the main nail of described intramedullary nail is provided with two for the first lock hole through pinning near a section of far-end, the main nail of described intramedullary nail near a section of near-end be provided with one for the second lock hole through pinning and one for through pinning and allow the pressurization slotted hole of pinning along the main nail axially-movable of intramedullary nail, described pressurization slotted hole is between the second lock hole and the near-end of the main nail of intramedullary nail, the proximal end of the main nail of described intramedullary nail is provided with the threaded interior hole that extends to pressurization slotted hole place to distal direction, in described threaded interior hole, coordinate and be equiped with for promoting the pressurization plug screw of pinning along pressurization slotted hole to the main nail distal movement of intramedullary nail.
Above-mentioned controllable compression intramedullary nail, preferred, described pressurization slotted hole is Long Circle hole.
Above-mentioned controllable compression intramedullary nail, preferred, the length in described Long Circle hole is 1.5cm.
Above-mentioned controllable compression intramedullary nail, preferred, described pressurization plug screw is provided with the hexagon through hole coordinating with screwing tool, and described hexagon through hole axially runs through pressurization plug screw along the main nail of intramedullary nail.
Compared with prior art, the utility model has the advantage of: when controllable compression intramedullary nail of the present utility model uses, first the distal locking nail of the main nail of intramedullary nail is installed, then the pinning of near-end pressurization slotted hole is installed, again pressurization plug screw is screwed into the threaded interior hole of the main nail near-end of intramedullary nail, pressurization plug screw is twisted to the pinning pressurizeing in slotted hole, promoting pinning by pressurization plug screw moves to far-end, can realize the object of fracture site pressurization, when pressurization reach good stable of fracture site without fine motion after, then one piece of locking is squeezed in second lock hole of near section. This controllable compression intramedullary nail simple in structure, easy to operate, be easy to make, can carry out the controllable compression of the broken ends of fractured bone according to observing broken ends of fractured bone stable case in art, and then reach the stable and postoperative object being fixed well of broken ends of fractured bone pressurization, be conducive to union.
Brief description of the drawings
Fig. 1 is the main sectional structure schematic diagram of the main nail of intramedullary nail.
Fig. 2 is the side-looking structural representation of the main nail of intramedullary nail.
Fig. 3 is the structural representation of controllable compression intramedullary nail while pressurizeing.
Fig. 4 is the structural representation after controllable compression intramedullary nail has pressurizeed.
Marginal data:
1, the main nail of intramedullary nail; 2, the first lock hole; 3, the second lock hole; 4, pressurization slotted hole; 5, threaded interior hole; 6, pressurization plug screw; 100, pinning.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figures 1 to 4, the controllable compression intramedullary nail of the present embodiment, comprise that two ends are respectively the main nail 1 of intramedullary nail of near-end and far-end, the main nail 1 of intramedullary nail is provided with two for the first lock hole 2 through pinning 100 near a section of far-end, the main nail 1 of intramedullary nail near a section of near-end be provided with one for the second lock hole 3 through pinning 100 and one for through pinning 100 and allow the pressurization slotted hole 4 of pinning 100 along main nail 1 axially-movable of intramedullary nail, pressurization slotted hole 4 is between the second lock hole 3 and the near-end of the main nail 1 of intramedullary nail, the proximal end of the main nail 1 of intramedullary nail is provided with the threaded interior hole 5 that extends to pressurization slotted hole 4 places to distal direction, in threaded interior hole 5, coordinate and be equiped with for promoting the pressurization plug screw 6 of pinning 100 along pressurization slotted hole 4 to main nail 1 distal movement of intramedullary nail.
In the present embodiment, pressurization slotted hole 4 is Long Circle hole, and the length in Long Circle hole is 1.5cm.
In the present embodiment, pressurization plug screw 6 is provided with hexagon through hole, turns pressurization plug screw 6 for coordinating with screwing tool. This hexagon through hole axially runs through pressurization plug screw 6 along the main nail 1 of intramedullary nail.
When the controllable compression intramedullary nail of the present embodiment uses, first the distal locking nail of main intramedullary nail nail 1 100 is installed, far away section that is about to fracture is secured together with the main nail 1 of intramedullary nail. then the pinning 100 of slotted hole 4 of near-end being pressurizeed installs, use the screwdriver supporting with pressurization plug screw 6 by the tail end of the hollow of the outer diopter of intramedullary nail, pressurization plug screw 6 to be inserted to the threaded interior hole 5 of main nail 1 near-end of intramedullary nail, by the revolving force of screwdriver, pressurization plug screw 6 is twisted to the pinning 100 pressurizeing in slotted hole 4, after contacting with pinning 100, pressurization plug screw 6 passes through further to strengthen the revolving force of screwdriver, realize the effect that the pinning 100 in pressurization slotted hole 4 is moved to far-end, because the nearly section of pinning 100 and fracture is fixed together, and then realize near fracture section to far away section of effect of pushing, thereby realize the object of fracture site pressurization, then according to the stable case of the broken ends of fractured bone, constantly adjust the distance that pressurizing nut advances, when reach good stable of fracture site without fine motion after (referring to Fig. 3), by the outer diopter of intramedullary nail, one piece of locking is squeezed into again to second lock hole 3 interior (referring to Fig. 4) of near section, thereby realize the pressurization that the broken ends of fractured bone is good, postoperative good fixing object.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment. For those skilled in the art, do not departing from the improvement that obtains under the utility model technical conceive prerequisite and conversion also should be considered as protection domain of the present utility model.
Claims (4)
1. a controllable compression intramedullary nail, comprise that two ends are respectively the main nail of intramedullary nail (1) of near-end and far-end, one section of the close far-end of the main nail of described intramedullary nail (1) is provided with two for the first lock hole (2) through pinning (100), it is characterized in that: the main nail of described intramedullary nail (1) near a section of near-end be provided with one for the second lock hole (3) through pinning (100) and one for passing pinning (100) and allowing the pressurization slotted hole (4) of pinning (100) along the main nail of intramedullary nail (1) axially-movable, described pressurization slotted hole (4) is positioned between the second lock hole (3) and the near-end of the main nail of intramedullary nail (1), the proximal end of the main nail of described intramedullary nail (1) is provided with to distal direction and extends to the threaded interior hole (5) that pressurization slotted hole (4) is located, in described threaded interior hole (5), coordinate and be equiped with for promoting the pressurization plug screw (6) of pinning (100) along pressurization slotted hole (4) to the main nail of intramedullary nail (1) distal movement.
2. controllable compression intramedullary nail according to claim 1, is characterized in that: described pressurization slotted hole (4) is Long Circle hole.
3. controllable compression intramedullary nail according to claim 2, is characterized in that: the length in described Long Circle hole is 1.5cm.
4. according to the controllable compression intramedullary nail described in claim 1 or 2 or 3, it is characterized in that: described pressurization plug screw (6) is provided with the hexagon through hole coordinating with screwing tool, described hexagon through hole axially runs through pressurization plug screw (6) along the main nail of intramedullary nail (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051173.2U CN205251666U (en) | 2015-12-16 | 2015-12-16 | Controllable pressurization intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521051173.2U CN205251666U (en) | 2015-12-16 | 2015-12-16 | Controllable pressurization intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205251666U true CN205251666U (en) | 2016-05-25 |
Family
ID=55993220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521051173.2U Expired - Fee Related CN205251666U (en) | 2015-12-16 | 2015-12-16 | Controllable pressurization intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205251666U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992154A (en) * | 2018-08-29 | 2018-12-14 | 宁波市第六医院 | A kind of clavicular intramedullary pin |
| CN111481282A (en) * | 2020-06-08 | 2020-08-04 | 上海市浦东新区公利医院(第二军医大学附属公利医院) | Self-locking intramedullary nail device for proximal fibula fracture |
-
2015
- 2015-12-16 CN CN201521051173.2U patent/CN205251666U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992154A (en) * | 2018-08-29 | 2018-12-14 | 宁波市第六医院 | A kind of clavicular intramedullary pin |
| CN111481282A (en) * | 2020-06-08 | 2020-08-04 | 上海市浦东新区公利医院(第二军医大学附属公利医院) | Self-locking intramedullary nail device for proximal fibula fracture |
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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 |
Granted publication date: 20160525 Termination date: 20171216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |