CN201912206U - Improved jaw fracture external fixer - Google Patents
Improved jaw fracture external fixer Download PDFInfo
- Publication number
- CN201912206U CN201912206U CN2010206892194U CN201020689219U CN201912206U CN 201912206 U CN201912206 U CN 201912206U CN 2010206892194 U CN2010206892194 U CN 2010206892194U CN 201020689219 U CN201020689219 U CN 201020689219U CN 201912206 U CN201912206 U CN 201912206U
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- screw
- guide rail
- frame
- screw hole
- rail
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Abstract
The utility model provides an improved jaw fracture external fixer which belongs to the technical field of medical devices; the structure is as follows: a fixed bone nail frame is fixedly connected with a guide rail, a bone nail screw hole is arranged on the fixed bone nail frame, the lower part of a mobile bone nail frame is provided with a screw hole seat, an adjusting screw hole is arranged on the screw hole seat, and the diameter direction of the adjusting screw hole is vertical to the diameter direction of a bone nail screw hole; a rail slot is arranged on the guide rail, a screw rod is arranged in the rail slot through embedding sleeves on both ends of the guide rail, an external thread is arranged on the screw rod between the embedding sleeves on both ends of the guide rail, and the screw hole seat of the mobile bone nail frame is arranged in the rail slot of the guide rail and the adjusting screw hole of the screw hole seat is connected with the screw rod in the rail slot by the thread; and particularly, one side of the mobile bone nail frame is provided with a step semi-lunar slot. In the improved jaw fracture external fixer, the step semi-lunar slot is used for directly clamping used nails with different models, so that quick traction is facilitated.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically a kind of modified model jaw fracture external fixator.
Background technology
General, the oromaxillo-facial region wound accounts for 10%～20% of whole-body trauma, the wound ubiquity of the skeleton that causes because of vehicle accident or other accidents, wherein the patient of human jaw facial bone fracture is in rising trend, the open reduction internal fixation is adopted in the treatment of jaw fracture usually clinically, main performance is formerly adopted the incision of skeleton peripheral organization then nail or other devices to carry out internal fixation in osseous tissue and is treated the maxillofacial bone fracture, and following complication may appear in this art: wound face infects, foreign body retains in the jawbone, human body is to the rejection of foreign body, especially growth of child's jawbone etc. after implementing internal fixation and then can influence at the child.
But internal fixation is used more extensive clinically, this not only produces negative psychological application to the patient, and after the fracture situation rehabilitation, need once more the patient to be carried out wound sometimes and take out inside-fixture, this has caused the secondary wound to the patient to a certain extent, still is that patient itself has brought the difficulty that is difficult to overcome to medical personnel.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of modified model jaw fracture external fixator is provided.
The technical solution of the utility model realizes in the following manner, this modified model jaw fracture external fixator, comprise guide rail, fixing bone pin frame and mobile nail frame, the fixing bone pin frame is fixedlyed connected with guide rail, offer the nail screw on the fixing bone pin frame, the bottom of mobile nail frame is provided with the screw seat, offers the adjusting screw on the screw seat, and the aperture direction of adjusting screw and the aperture direction of nail screw are perpendicular; Offer rail groove on the guide rail, one screw rod is arranged in the rail groove by the nested of guide rail two ends, screw rod between guide rail two ends nested is provided with external screw thread, and the screw flight that the screw seat of mobile nail frame is arranged in the rail groove of guide rail and the adjusting screw of screw seat and rail groove are interior is connected; Especially: a side of mobile nail frame offers the ladder half-moon groove.
The screw seat of the bottom of mobile nail frame and mobile nail frame are the unitary whole structures.
An end face of screw rod is provided with cross edge of a knife groove.
The rail groove shape is identical with the shape of screw seat.
The beneficial effect that this utility model is compared with prior art produced is:
This modified model jaw fracture external fixator especially offers the ladder half-moon groove in a side of mobile nail frame, is in order directly to block the nail of employed different model, to be convenient to quick traction.
This modified model jaw fracture external fixator utilizes the rotation of screw rod to make mobile nail frame produce relative motion with respect to the fixing bone pin frame, thereby realize drawing-in motion to nail, traction is regulated slow in one's movements by screw thread rotation, pull strength output is stable, good fixing effect.This modified model jaw fracture external fixator treatment maxillofacial fracture overcomes the shortcoming that can develop complications clinically fully, it is a kind of Minimally Invasive Surgery truly, the jaw face does not almost have cicatrix, and the patient is easy to accept, and is replenishing and expanding the fracture internal fixation treatment.This modified model jaw fracture external fixator is without the metal internal fixation, only adopt two cortex nails that skeleton is fixed, operation method is easy, can guarantee union of fracture and prevent complication, and avoided the situation of second operation wound to take place, respond well, especially be directed to and can not tolerate the more suitable employing of the patient that maybe should not accept internal fixation operation.
Description of drawings
Accompanying drawing 1 is a main TV structure sketch map of the present utility model;
Accompanying drawing 2 is the cross-sectional view of A-A in the accompanying drawing 1;
Accompanying drawing 3 is generalized sections of guide rail of the present utility model;
Accompanying drawing 4 is generalized sections of mobile nail frame of the present utility model;
Accompanying drawing 5 is structural representations of the cross edge of a knife groove of screw rod end face of the present utility model;
Accompanying drawing 6 is backsight structural representations of the present utility model.
Labelling in the accompanying drawing is represented respectively:
1, guide rail, 2, the fixing bone pin frame, 3, mobile nail frame, 4, the nail screw, 5, the screw seat, 6, regulate screw, 7, the rail groove, 8, screw rod, 9, nested, 10, external screw thread, 11, the ladder half-moon groove, 12, cross edge of a knife groove.
The specific embodiment
Below in conjunction with accompanying drawing modified model jaw fracture external fixator of the present utility model is done following detailed description the in detail.
As shown in Figure 1, modified model jaw fracture external fixator of the present utility model, its structure comprises guide rail 1, fixing bone pin frame 2 and mobile nail frame 3, fixing bone pin frame 2 is fixedlyed connected with guide rail 1, offer nail screw 4 on the fixing bone pin frame 2, a side of mobile nail frame 3 offers ladder half-moon groove 11.The bottom of mobile nail frame 3 is provided with screw seat 5, and the screw seat 5 of the bottom of mobile nail frame 3 and mobile nail frame are the unitary whole structures.Offer on the screw seat 5 and regulate screw 6, the aperture direction of adjusting screw 6 and the aperture direction of nail screw 4 are perpendicular; Offer rail groove 7 on the guide rail 1, one screw rod 8 is arranged in the rail groove 7 by nested 9 of guide rail two ends, rail groove 7 shapes are identical with the shape of screw seat 5, screw rod 8 between guide rail two ends nested is provided with external screw thread 10, and the screw rod 8 that the screw seat 5 of mobile nail frame 3 is arranged in the rail groove 7 of guide rail and the adjusting screw 4 of screw seat and rail groove are interior is threaded.An end face of screw rod 8 is provided with cross edge of a knife groove 12.
Claims (4)
1. modified model jaw fracture external fixator, comprise guide rail, fixing bone pin frame and mobile nail frame, one fixing bone pin frame is fixedlyed connected with guide rail, offer the nail screw on the fixing bone pin frame, the bottom of mobile nail frame is provided with the screw seat, offer the adjusting screw on the screw seat, the aperture direction of adjusting screw and the aperture direction of nail screw are perpendicular; Offer rail groove on the guide rail, one screw rod is arranged in the rail groove by the nested of guide rail two ends, screw rod between guide rail two ends nested is provided with external screw thread, and the screw flight that the screw seat of mobile nail frame is arranged in the rail groove of guide rail and the adjusting screw of screw seat and rail groove are interior is connected; It is characterized in that: a side of mobile nail frame offers the ladder half-moon groove.
2. modified model jaw fracture external fixator according to claim 1 is characterized in that the screw seat and the mobile nail frame of the bottom of mobile nail frame is the unitary whole structure.
3. modified model jaw fracture external fixator according to claim 1 is characterized in that an end face of screw rod is provided with cross edge of a knife groove.
4. modified model jaw fracture external fixator according to claim 1 is characterized in that the rail groove shape is identical with the shape of screw seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206892194U CN201912206U (en) | 2010-12-30 | 2010-12-30 | Improved jaw fracture external fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206892194U CN201912206U (en) | 2010-12-30 | 2010-12-30 | Improved jaw fracture external fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201912206U true CN201912206U (en) | 2011-08-03 |
Family
ID=44412025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206892194U Expired - Fee Related CN201912206U (en) | 2010-12-30 | 2010-12-30 | Improved jaw fracture external fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201912206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393581A (en) * | 2019-07-09 | 2019-11-01 | 缙云县平民大药房药品零售有限公司 | A kind of fracture of mandible exterior fixing rack and its fixing means |
-
2010
- 2010-12-30 CN CN2010206892194U patent/CN201912206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393581A (en) * | 2019-07-09 | 2019-11-01 | 缙云县平民大药房药品零售有限公司 | A kind of fracture of mandible exterior fixing rack and its fixing means |
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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: 20110803 Termination date: 20111230 |