CN202235657U - Screw device capable of performing effective pressurization - Google Patents
Screw device capable of performing effective pressurization Download PDFInfo
- Publication number
- CN202235657U CN202235657U CN2011202912649U CN201120291264U CN202235657U CN 202235657 U CN202235657 U CN 202235657U CN 2011202912649 U CN2011202912649 U CN 2011202912649U CN 201120291264 U CN201120291264 U CN 201120291264U CN 202235657 U CN202235657 U CN 202235657U
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- screw
- sleeve
- nut
- calcaneus
- hollow
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- Expired - Fee Related
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Abstract
The utility model relates to a screw device capable of performing effective pressurization, belongs to the technical field of orthopedic medical devices and is used for performing the effective pressurization on calcaneus with a fracture and restoring the width of the calcaneus. The technical scheme of the utility model is as follows: the screw device comprises a hollow screw and a sleeve, wherein a screw cap is arranged at one end of the hollow screw, a through hole is arranged in a screw rod and the screw cap by penetration, a thread is arranged on the outer wall of the screw rod, the sleeve is of a hollow sleeve with openings at two ends, a nut with a center hole is arranged at one end of the sleeve, a thread is arranged on the wall of an inner hole of the sleeve, the thread of the inner hole of the sleeve is matched with the thread on the outer wall of the hollow screw, and the aperture of the center hole of the nut of the sleeve is matched with the diameter of the through hole in the hollow screw. When the pressurization screw device with the structure is adopted, the hollow screw and the sleeve can be respectively inwards sent into the calcaneus from the two sides of the calcaneus, and the hollow screw is screwed in the sleeve, so that effective pressurization can be realized. The method does not need to break off the screw and can prevent the occurrence of complications caused by shedding of the nut, so that the method can effectively improve an easy-to-break bone bolt method adopted in treatment of the fracture of the calcaneus.
Description
Technical field
This utility model relates to a kind of to effectively pressurization of calcaneus enforcement, recovers the utensil of width of calcaneus, belongs to the orthopedic medical device technical field.
Background technology
In the treatment of fracture of calcaneus damage, use the calcaneus dissection bone plate and broken bone bolt system has obtained application clinically.This method and apparatus can pressurize effectively, recovers the width of calcaneus, is applied to the clinical excellent curative that obtained, and the patient suffers from sufficient functional rehabilitation rate of good and surpasses 95%, has obtained patient's favorable comment, also receives medical worker's welcome.
But use above-mentioned easy knochenbruch bolt pressurization and have following two difficult problems: 1, in art, need the doctor to judge that whether nut twisted the groove that is prone to the knochenbruch bolt, uses the bending screwdriver then it is fractureed.But the easy misjudge of doctor, nut were about to it when not twisting groove as yet and fracture, and nut is fastened part together with the bone that fractures and taken out, and operative failure is had to squeeze into again new bone and fastened, so that realize that nut effectively pressurizes, recovers width of calcaneus.2, some cases is arranged, nut was only twisted a bone bolt groove part, behind the bone bolt that fractures, in processes such as functional exercise, the nut entering soft tissue that possibly come off.If cause symptoms such as local pain, need extra operation that it is taken out.In addition, can influence the pressurization effect because nut comes off, thereby sufficient functional rehabilitation is suffered from influence.
These situation taking place, not only incured loss through delay operating time, wasted equipment, has also increased patient's misery.Therefore necessary adopting an effective measure improved, to improve surgical effect.
The utility model content
This utility model technical problem to be solved provides a kind ofly can overcome the defective that use to be prone to the knochenbruch bolt and to produce, need not to fracture, also can not take place the screw device that can effectively pressurize that nut comes off.
The technical scheme that solves the problems of the technologies described above is:
A kind of screw device that can effectively pressurize, it is made up of hollow screw and sleeve, and an end of hollow screw has nut; The through hole that runs through is arranged in its screw rod and the nut; On the screw rod outer wall screw thread is arranged, sleeve is the cannulated sleeve of both ends open, is the nut that centre bore is arranged at a telescopic end; On the sleeve inner hole wall screw thread is arranged, the screw thread on sleeve inner hole thread and the hollow screw outer wall is complementary.
Through-hole diameter in the above-mentioned screw device that can effectively pressurize, the aperture of the centre bore of a said telescopic end nut and hollow screw is complementary.
Adopt the forcing screw device of this structure; Can inwardly send into hollow screw and sleeve respectively from the both sides of calcaneus; And hollow screw screwed in the sleeve, can realize effective pressurization, this method need not screw is fractureed; Also the complication that nut comes off can not take place, be to adopting the effective improvement that is prone to knochenbruch bolt method in the fracture of calcaneus treatment.
Description of drawings
Fig. 1 is the structural representation of this utility model;
The side view of Fig. 2 Fig. 1;
Fig. 3 is the user mode figure of this utility model.
Labelling is following among the figure: hollow screw 1, sleeve 2, nut 3, through hole 4, sleeve endoporus 5, nut 6, centre bore 7, guide pin 8.
The specific embodiment
This utility model is made up of hollow screw 1 and sleeve 2.
Show among the figure that an end of hollow screw 1 has nut 3, the through hole 4 that runs through is arranged in its screw rod and the nut 3, on the screw rod outer wall screw thread is arranged.
Show among the figure; Sleeve 2 is the cannulated sleeve of both ends open, is the nut 6 that centre bore 7 is arranged at an end of sleeve 2, on sleeve endoporus 5 walls screw thread is arranged; Screw thread on the screw thread of sleeve endoporus 5 and hollow screw 1 outer wall is complementary, and hollow screw 1 can be screwed in the sleeve 2.
Show among the figure that through hole 4 diameters in the aperture of the centre bore 7 of the nut 6 of sleeve 2 and the hollow screw 1 are complementary, guide pin 8 can pass simultaneously smoothly.
The method for using of this utility model is following:
At first fracture of calcaneus is resetted during operation, Kirschner wire is temporary fixed.At the vertical little otch of shape of calcaneus outer row, use periosteal elevator and separate periosteum afterwards, perspective is selected suitable screw on the blade plate down; After confirming the inserting needle direction; Squeeze into suitable guide pin 8, be screwed into hollow screw 1, be inserted in cannulated sleeve 2 simultaneously at the other end of guide pin 8 along guide pin 8; Both are screwed into relatively, can realize effective pressurization.
Claims (2)
1. screw device that can effectively pressurize; It is characterized in that: it is made up of hollow screw (1) and sleeve (2); One end of hollow screw (1) has nut (3), and the through hole (4) that runs through is arranged in its screw rod and the nut (3), on the screw rod outer wall screw thread is arranged; Sleeve (2) is the cannulated sleeve of both ends open; End at sleeve (2) is the nut (6) that centre bore (7) are arranged, and screw thread is arranged on sleeve endoporus (5) wall, and the screw thread on the screw thread of sleeve endoporus (5) and hollow screw (1) outer wall is complementary.
2. the screw device that can effectively pressurize according to claim 1 is characterized in that: through hole (4) diameter in the aperture of the centre bore (7) of an end nut (6) of said sleeve (2) and the hollow screw (1) is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202912649U CN202235657U (en) | 2011-08-11 | 2011-08-11 | Screw device capable of performing effective pressurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202912649U CN202235657U (en) | 2011-08-11 | 2011-08-11 | Screw device capable of performing effective pressurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202235657U true CN202235657U (en) | 2012-05-30 |
Family
ID=46096973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202912649U Expired - Fee Related CN202235657U (en) | 2011-08-11 | 2011-08-11 | Screw device capable of performing effective pressurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202235657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871721A (en) * | 2012-10-26 | 2013-01-16 | 王永红 | Sacrum female and male hollow pressurizing screw |
| CN108904024A (en) * | 2018-08-03 | 2018-11-30 | 河北医科大学第三医院 | A kind of self-stopping type pressurization bolt component |
-
2011
- 2011-08-11 CN CN2011202912649U patent/CN202235657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102871721A (en) * | 2012-10-26 | 2013-01-16 | 王永红 | Sacrum female and male hollow pressurizing screw |
| CN108904024A (en) * | 2018-08-03 | 2018-11-30 | 河北医科大学第三医院 | A kind of self-stopping type pressurization bolt component |
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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: 20120530 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |