CN2848152Y - Pulling pressurization screw - Google Patents
Pulling pressurization screw Download PDFInfo
- Publication number
- CN2848152Y CN2848152Y CN 200520086583 CN200520086583U CN2848152Y CN 2848152 Y CN2848152 Y CN 2848152Y CN 200520086583 CN200520086583 CN 200520086583 CN 200520086583 U CN200520086583 U CN 200520086583U CN 2848152 Y CN2848152 Y CN 2848152Y
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- CN
- China
- Prior art keywords
- hollow
- pulling
- screw
- pressurization
- self tapping
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Abstract
The utility model relates to a pulling pressurization screw nail for fixing femur neck fracture and is particularly suitable for treating the femur neck fracture of old people. The pulling pressurization screw nail comprises a hollow self tapping pulling force screw nail and a hollow pulling pressurization screw bolt, wherein the front end of the outer part of the hollow pulling pressurization screw bolt is provided with a pulling force screw thread. The middle part of the hollow pulling pressurization screw bolt is provided with a discoid compression cap, and the back end of the hollow pulling pressurization screw bolt is provided with a hollow outer hexagon. A core of the hollow pulling pressurization screw bolt presents in a hollow circular pipe shape and is provided with an inner screw thread coincident to an outer screw thread of the tail part of the hollow self tapping pulling force screw nail. The hollow self tapping pulling force screw nail presents in a hollow circular pipe shape, and the head part of the hollow self tapping pulling force screw nail is provided with a spongy bone pressurization screw thread which is the self tapping screw thread. The tail part of the hollow self tapping pulling force screw nail is provided with the outer screw thread, and an inner hexagon is arranged on the position of an inner hole of the tail end of the hollow self tapping pulling force screw nail.
Description
Technical field:
The utility model relates to the fixed forcing screw that lifts of a kind of fracture of femoral neck, be specially adapted to treat old people's fracture of femoral neck.
Background technology:
Fracture of femoral neck is common complaint among the elderly and frequently-occurring disease, because of the expectant treatment bed rest time long, complication is many, the mortality rate height, now many opinion operative treatments, but most of fracture of femoral neck patients, age is higher, the normal cardiovascular and cerebrovascular disease that merges, diabetes and other diseases, being unsuitable for the row full hip-joint plants and changes, the artificial femoral head replacement, and major operation, used three flanged nail such as open reduction Richards nail-plate is fixing, steinman pin, two-way hollow forcing screws etc. are because of osteoporosis, sclerotin is difficult to fix, or the automatic slippage of postoperative nail pin, penetrate joint etc., do not reach the purpose of fractures.
The utility model content:
The purpose of this utility model is the weak point that exists at the fracture of femoral neck holder, a kind of forcing screw that lifts is provided, by lifting and pressurize bidirectional force, impel the far and near end of fracture involutory with suitable pressure, avoided pressurization too tight or too loose, and can prevent the lag screw slippage or enter the joint, reduce the femur head necrosis rate, promote union of fracture.
This utility model is achieved through the following technical solutions: this utility model comprises that hollow self tapping lag screw and hollow lift pressurization bolt two parts.
The beneficial effects of the utility model are: it is reasonable in design, simple in structure, easy to use that this lifts forcing screw, by lifting the pressurization bidirectional force, impel the far and near end of fracture involutory with suitable pressure, avoided pressurization too tight or too loose, and can prevent the slippage of hollow self tapping lag screw or enter the joint.Can make the early stage sitting of aged fracture of femoral neck patient, stand up and out-of-bed activity, reduce complication, avoid the major operation wound, also guarantee therapeutic effect.
Below with reference to accompanying drawing this utility model is elaborated.
Description of drawings:
Fig. 1 is a hollow self tapping lag screw sketch map
Fig. 2 lifts the pressurization bolt sketch map for hollow
Fig. 3 is for lifting the forcing screw sketch map
The specific embodiment:
The forcing screw that lifts of the present utility model lifts pressurization bolt 2 by hollow self tapping lag screw 1 and hollow and forms.Wherein:
Hollow self tapping lag screw 1 is hollow circular tube shape, and head has spongy bone pressurization screw thread 3, and the pressurization screw thread is a tapping screw thread, and afterbody has external screw thread 4, and there are interior six ribs 5 at tail end endoporus place, is sliding part 6 between head pressurization screw thread 3 and the afterbody external screw thread 4.Hollow lifts pressurization bolt 2 in-cores total length female thread 7, can match with the external screw thread 4 of hollow self tapping lag screw afterbody; Outer front end has external screw thread 8, can better be connected mutually with sclerotin, and middle is the discoid pressure cap 9 that adds, and the rear end is outer six ribs 10 of hollow.
During use, under the X line monitors, the fracture closed reduction, under the lateral side of femur greater trochanter, choose entry point, squeeze into a guide pin along the neck of femur direction, the hollow drill bit punches to femoral head (being no less than 2cm apart from articular surface) along the guide pin direction, select the hollow self tapping lag screw of suitable length, with hollow six rib screwdrivers hollow self tapping lag screw is screwed in, tail end enters about 0.5cm in the cortex, along the guide pin direction hollow is lifted pressurization bolt with hollow six rib sleeves then and screws in, and the external screw thread that makes hollow lift pressurization bolt female thread and hollow lag screw afterbody matches, hollow lifts pressurization bolt outer front end pulling force screw thread and is connected mutually with sclerotin, tighten and make discoid add pressure cap and the subsides of cortex bone photo, lift, pressurization, degree of tightness is suitable, make fracture reliably involutory, extract guide pin.General fracture of femoral neck need lift forcing screw for 2 ~ 3 pieces and fix.
Claims (1)
1, a kind of forcing screw that lifts, bag holder hollow self tapping lag screw, hollow lifts pressurization bolt two parts, it is characterized in that:
(1) hollow self tapping lag screw is hollow circular tube shape, and head has spongy bone pressurization screw thread, is tapping screw thread, and afterbody has external screw thread, and there are interior six ribs at tail end endoporus place.
(2) the hollow pressurization bolt that lifts: core is cylindrical, and the in-core total length has female thread, and the pipe outer front end has the pulling force screw thread, and middle is the discoid pressure cap that adds, and the rear end is outer six ribs of hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086583 CN2848152Y (en) | 2005-08-25 | 2005-08-25 | Pulling pressurization screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086583 CN2848152Y (en) | 2005-08-25 | 2005-08-25 | Pulling pressurization screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2848152Y true CN2848152Y (en) | 2006-12-20 |
Family
ID=37520627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086583 Expired - Fee Related CN2848152Y (en) | 2005-08-25 | 2005-08-25 | Pulling pressurization screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2848152Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103690236A (en) * | 2013-12-28 | 2014-04-02 | 无锡雨田精密工具有限公司 | Medical screw |
| CN103813761A (en) * | 2011-07-20 | 2014-05-21 | 迈克尔·H·霍维茨 | Minimal incision removable bone screw, driver, and method of use |
| CN104323850A (en) * | 2014-09-13 | 2015-02-04 | 吴爱悯 | Transpedicular intervertebral disc diagonal compressible and extensible hollow screw |
| CN104382637A (en) * | 2014-11-21 | 2015-03-04 | 毕宏政 | Breakage-preventing external fixing support screw |
| CN106510818A (en) * | 2016-11-22 | 2017-03-22 | 中国人民解放军第四军医大学 | Component structure for improving percutaneous sealing effect of orthopedic external fixation frame |
| CN106999219A (en) * | 2014-12-15 | 2017-08-01 | 史密夫和内修有限公司 | Active fractures pressurized implant |
| CN107440776A (en) * | 2017-07-20 | 2017-12-08 | 南京市第医院 | A kind of inner fixing device of the new lag screw joint pedicle screw treatment Hangman fracture of the way of escape |
-
2005
- 2005-08-25 CN CN 200520086583 patent/CN2848152Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103813761A (en) * | 2011-07-20 | 2014-05-21 | 迈克尔·H·霍维茨 | Minimal incision removable bone screw, driver, and method of use |
| US9526546B2 (en) | 2011-07-20 | 2016-12-27 | Michael H. Horwitz | Method of using a minimal incision removable bone screw |
| CN103813761B (en) * | 2011-07-20 | 2017-02-08 | 迈克尔·H·霍维茨 | Minimal incision removable bone screw, driver, and method of use |
| US10441334B2 (en) | 2011-07-20 | 2019-10-15 | Michael H. Horwitz | Minimal incision removable bone screw |
| CN103690236A (en) * | 2013-12-28 | 2014-04-02 | 无锡雨田精密工具有限公司 | Medical screw |
| CN104323850A (en) * | 2014-09-13 | 2015-02-04 | 吴爱悯 | Transpedicular intervertebral disc diagonal compressible and extensible hollow screw |
| CN104382637A (en) * | 2014-11-21 | 2015-03-04 | 毕宏政 | Breakage-preventing external fixing support screw |
| CN106999219A (en) * | 2014-12-15 | 2017-08-01 | 史密夫和内修有限公司 | Active fractures pressurized implant |
| CN106510818A (en) * | 2016-11-22 | 2017-03-22 | 中国人民解放军第四军医大学 | Component structure for improving percutaneous sealing effect of orthopedic external fixation frame |
| CN107440776A (en) * | 2017-07-20 | 2017-12-08 | 南京市第医院 | A kind of inner fixing device of the new lag screw joint pedicle screw treatment Hangman fracture of the way of escape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |