CN204260806U - A kind of bone-knitting device for the treatment of fracture of femoral neck - Google Patents
A kind of bone-knitting device for the treatment of fracture of femoral neck Download PDFInfo
- Publication number
- CN204260806U CN204260806U CN201420628704.9U CN201420628704U CN204260806U CN 204260806 U CN204260806 U CN 204260806U CN 201420628704 U CN201420628704 U CN 201420628704U CN 204260806 U CN204260806 U CN 204260806U
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- Prior art keywords
- blade plate
- fracture
- femur
- hollow nail
- neck
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Abstract
The utility model discloses a kind of bone-knitting device for the treatment of fracture of femoral neck, comprising: blade plate; Blade plate, comprises the blade plate top and blade plate bottom that connect successively; Blade plate top is inclined at the upper end of blade plate bottom outwardly, thicker than two ends in the middle of blade plate; Blade plate top is provided with three sleeves, arranges, be provided with hollow nail in each sleeve between three sleeves in inverted-triangular; Hollow nail front end is provided with screw thread, and rear portion is without screw thread; During use, hollow nail is inserted in femoral head from greater trochanter through neck of femur place diagonal; Screw thread place is fixed in femoral head, and hollow nail rear portion and neck of femur and sleeve are slidably connected, and blade plate bottom is provided with the screw hole with hold-down screw thread lock.By the way, to fracture pressurization in neck of femur agglutination, fracture line can be reduced, simultaneously for fracture of femoral neck end blood provides possibility for reconstruction, there is good angle stability, can displacement fracture be prevented, thus reduce the incidence rate of femur head necrosis.
Description
Technical field
This utility model relates to a kind of improvement for the treatment of the bone-knitting device of fracture of femoral neck, particularly one can be pressurizeed to fracture in neck of femur agglutination, reduce fracture line, simultaneously for fracture of femoral neck end blood provides possibility for reconstruction, there is good angle stability, can displacement fracture be prevented, promote the bone-knitting device of the treatment fracture of femoral neck of union of fracture.
Background technology
Fracture of femoral neck is fracture comparatively common clinically, mostly occur old people, along with the socio-economic development of society, youngster generation fracture of femoral neck is that ratio is more and more higher, and the fracture of femoral neck many employings artificial femoral head replacement in the past for over-65s old people treats, and the patient for youth then adopts and retains capital treatment, along with the prolongation of human longevity, a lot of old people's body constitution is better, and activity is large, requires that the hope of protecting head treatment is very strong.The Therapeutic Method retaining femoral head treatment fracture of femoral neck is more, and closed reduction 3 Chinese character pin-shaped internal fixtion of hollow screw and locking bone-knitting device internal fixtion, curative effect is had nothing in common with each other.
Due to the particularity of the anatomical structure of neck of femur, blood supply, biomechanics and function, also comparatively special to the requirement of fracture of femoral neck internal fixation device.The method of the treatment fracture of femoral neck of comparatively generally acknowledging at present is closed draw reset hollow nail internal fixtion, the method undoubtedly in operation wound, expense in occupation of larger advantage, hollow screw is half-thread screw, there is the effect of pressurized fracture end in early days, later stage due to the capital blood supply of After femoral neck fracture poor, may bone resorption be there is in fracture end, at this moment gently bear a heavy burden, hollow nail outwards moves back nail and can realize fracture end and pressurize further, reduce fracture line and be conducive to healing of femoral neck fracture, meet the biomechanical principle of healing of femoral neck fracture.
But neck of femur cripetura can be there is after moving back nail in hollow nail, for the patient of part sclerotin difference, if born a heavy burden too early, or it is improper to bear a heavy burden, due to three hollow nail angle poor stabilities, there will be displacement fracture and cause neck of femur bone does not connect even femur head necrosis, can only select to carry out prosthetic replacement, except suffering painful and that cost is high medical expense, Joint Inverted is carried out for old people can accept, but to the patient of youth, because joint replacement wound is large, costly, patient activity measures life-span in large and joint etc. and should not carry out joint replacement too early.
For this reason, someone devises locking bone-knitting device internal fixtion, is used for the treatment of fracture of femoral neck; This bone-knitting device closes three hollow nails by one piece of blade plate and a pinning forms, the afterbody of hollow nail has screw thread, there are three Chinese character pin-shaped screws plate upper end, there is a threaded screw lower end, in practical operation, after fracture of femoral neck resets, three hollow nail tailing screw flights are screwed into plate screw thread, be fixed in femoral shaft with the lock hole of a lock screw on plate, form a locking bone-knitting device like this, there is good stability, in neck of femur agglutination, neck of femur cripetura can be avoided, also there is good angle stability, prevent displacement fracture; But because hollow nail and blade plate pass through thread lock, pegboard systems is locked in femoral shaft by lower end locking by nail-plate, such design makes can not to fracture with compressive in neck of femur agglutination, fracture line can not be reduced, this considerably increases the incidence rate of neck of femur bone does not connect and femur head necrosis, there is fatal defect.
Utility model content
The technical problem that this utility model mainly solves is to provide one and can pressurizes to fracture in neck of femur agglutination, reduce fracture line, simultaneously for fracture of femoral neck end blood provides possibility for reconstruction, there is good angle stability, displacement fracture can be prevented, can not displacement fracture be caused, can union of fracture be promoted, the bone-knitting device of the treatment fracture of femoral neck of the incidence rate of neck of femur bone does not connect and femur head necrosis can be reduced.
For solving the problems of the technologies described above, the technical scheme that this utility model adopts is a kind of bone-knitting device for the treatment of fracture of femoral neck, comprising: blade plate; Described blade plate, comprises the blade plate top and blade plate bottom that connect successively; Described blade plate top is inclined at the upper end of blade plate bottom outwardly, thicker than two ends in the middle of described blade plate; Described blade plate top is provided with three sleeves, arranges, be provided with hollow nail in each sleeve between described three sleeves in inverted-triangular; The front end of described hollow nail is provided with screw thread, and described hollow nail rear portion is without screw thread; During use, described hollow nail is inserted in femoral head from the greater trochanter of femur through neck of femur place diagonal; Described hollow nail nose threads place is fixed in femoral head, hollow nail rear portion and neck of femur and sleeve are slidably connected, when people walks, femur is subject to the partial action of the gravity of human body, by femoral head to pressing down, femoral head is pressed to neck of femur, drives hollow nail to slide backward simultaneously, slided in the threadless rear portion of hollow nail in neck of femur and sleeve; Described blade plate bottom is provided with screw hole, is fixed in femoral shaft blade plate bottom by hold-down screw.
Preferably, described blade plate is metallic plate, has screw thread in the screw hole on described blade plate, with hold-down screw thread lock.
Preferably, the hole in described sleeve is inner hexagonal hole, and the rear portion of described hollow nail screw thread is hexagon, and matching with sleeve in the rear portion of described hollow nail screw thread, prevents hollow nail from rotating.
Preferably, described hold-down screw is full thread lock screw, and head of screw is provided with screw thread, the thread lock in the screw hole on head of screw and blade plate.
Preferably, described hold-down screw is all vertically inserted in femur.
Preferably, described inverted-triangular is equilateral triangle.
The beneficial effects of the utility model are: a kind of bone-knitting device for the treatment of fracture of femoral neck described in the utility model, and because blade plate thick middle two ends are thin, blade plate is easy fracture not; Hold-down screw is full thread lock screw, head of screw is provided with screw thread, the thread lock in the screw hole on head of screw and blade plate, angle good stability after locking, and blade plate can be made directly can not to contact femur, reduce blade plate to the impact of periosteum blood confession; To fracture pressurization in neck of femur agglutination, fracture line can be reduced, simultaneously for fracture of femoral neck end blood provides possibility for reconstruction, there is good angle stability, can displacement fracture be prevented, promote union of fracture, thus reduce the incidence rate of neck of femur bone does not connect and femur head necrosis.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation for the treatment of the bone-knitting device of fracture of femoral neck of the present utility model;
Accompanying drawing 2 is a kind of structural representation for the treatment of the blade plate of the bone-knitting device of fracture of femoral neck of the present utility model;
Wherein: 1, blade plate; 2, hollow nail; 3, hold-down screw; 4, sleeve; 5, blade plate top; 6, blade plate bottom; 7, screw hole; 8, femur; 9, greater trochanter; 10, femoral head; 11, femoral shaft; 12, neck of femur; 13, screw thread.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1 and Fig. 2, this utility model embodiment comprises:
Treat a bone-knitting device for fracture of femoral neck, it is characterized in that: comprising: blade plate 1, hollow nail 2 and hold-down screw 3, described blade plate 1, comprises the blade plate top 5 and blade plate bottom 6 that connect successively, described blade plate top 5 is inclined at the upper end of blade plate bottom 6 outwardly, thicker than two ends in the middle of described blade plate 1, can prevent blade plate 1 from rupturing, described blade plate top 5 is provided with three sleeves 4, and arrange in inverted-triangular between described three sleeves 4, described inverted-triangular is equilateral triangle, is provided with hollow nail 2 in each sleeve 4, the front end of described hollow nail 2 is provided with screw thread 13, and described hollow nail 2 rear portion is without screw thread, described hollow nail 2 is inserted in femoral head 10 to neck of femur 12 diagonal 9 times from the greater trochanter of femur 8, described hollow nail 2 nose threads 13 place is fixed in femoral head 10, hollow nail 2 rear portion is slidably connected without screw thread place and neck of femur 12 and sleeve 4, when people walks, femur 8 is subject to the partial action of the gravity of human body, by femoral head 10 to pressing down, femoral head 10 is made to press to neck of femur 12, the power that femoral head 10 is downward simultaneously drives hollow nail 2 to slide backward, slided in the threadless rear portion of hollow nail 2 in neck of femur 12 and sleeve 4, can pressurize to fracture, be conducive to the healing of fracture, described blade plate bottom 6 is provided with screw hole 7, vertically inserts, be fixed in femoral shaft 11 blade plate bottom 6 by three hold-down screws 3.
Described blade plate 1 is metallic plate, and described blade plate top 5 is wider than blade plate bottom 6, can make more stable being connected on femur 8 of blade plate 1.Screw thread is had, with hold-down screw 3 thread lock in screw hole 7 on described blade plate 1.Described hold-down screw 3 is full thread lock screw, head of screw is provided with screw thread, thread lock in screw hole 7 on head of screw and blade plate 1, angle good stability after locking, and the distance between blade plate 1 and femur 8 can be regulated, make blade plate 1 directly not contact femur 8, reduce blade plate 1 to the impact of periosteum blood confession.
Described sleeve 4 is inner hexagonal hole, and the rear portion of described hollow nail 2 screw thread 13 is hexagon, and match with sleeve 4 in the rear portion of described hollow nail 2 screw thread 13, hollow nail 2 can be made to slide and non rotating at sleeve 4.
During operation, after neck of femur 12 reduction of the fracture, hollow nail 2 diagonal is inserted, insert in neck of femur 12 for 9 from the greater trochanter of femur 8, then sleeve 4 is placed on the tail end of hollow nail 2, again sleeve 4 is inserted in femur 8, hollow nail 2 nose threads 13 place is fixed on femoral head 10, the rear portion of screw thread 13 is slidably connected in neck of femur 12 and sleeve 4, and then with three hold-down screws 3, blade plate bottom 6 is fixed in femoral shaft 11, simultaneously, by the thread lock in the screw hole 7 on head of screw and blade plate 1, regulate the distance between blade plate 1 and femur 8.
The beneficial effects of the utility model are: a kind of bone-knitting device for the treatment of fracture of femoral neck described in the utility model, and because blade plate thick middle two ends are thin, blade plate is easy fracture not; Hold-down screw is full thread lock screw, head of screw is provided with screw thread, the thread lock in the screw hole on head of screw and blade plate, angle good stability after locking, and blade plate can be made directly can not to contact femur, reduce blade plate to the impact of periosteum blood confession; Can pressurize to fracture in neck of femur agglutination, reduce fracture line, simultaneously for fracture of femoral neck end blood provides possibility for reconstruction, there is good angle stability, displacement fracture can be prevented, can not displacement fracture be caused, promote union of fracture, thus reduce the incidence rate of neck of femur bone does not connect and femur head necrosis.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, all drops within this utility model rights protection scope.
Claims (6)
1. treat a bone-knitting device for fracture of femoral neck, it is characterized in that: comprising: blade plate; Described blade plate, comprises the blade plate top and blade plate bottom that connect successively; Described blade plate top is inclined at the upper end of blade plate bottom outwardly, thicker than two ends in the middle of described blade plate; Described blade plate top is provided with three sleeves, arranges, be provided with hollow nail in each sleeve between described three sleeves in inverted-triangular; The front end of described hollow nail is provided with screw thread, and described hollow nail rear portion is without screw thread; During use, described hollow nail is inserted in femoral head from the greater trochanter of femur through neck of femur place diagonal; Described hollow nail nose threads place is fixed in femoral head, hollow nail rear portion and neck of femur and sleeve are slidably connected, when people walks, femur is subject to the partial action of the gravity of human body, by femoral head to pressing down, femoral head is pressed to neck of femur, drives hollow nail to slide backward simultaneously, slided in the threadless rear portion of hollow nail in neck of femur and sleeve; Described blade plate bottom is provided with screw hole, is fixed in femoral shaft blade plate bottom by hold-down screw.
2. the bone-knitting device for the treatment of fracture of femoral neck according to claim 1, is characterized in that: described blade plate is metallic plate, has screw thread in the screw hole on described blade plate, with hold-down screw thread lock.
3. the bone-knitting device for the treatment of fracture of femoral neck according to claim 1, it is characterized in that: the hole in described sleeve is inner hexagonal hole, the rear portion of described hollow nail screw thread is hexagon, and matching with sleeve in the rear portion of described hollow nail screw thread, prevents hollow nail from rotating.
4. the bone-knitting device for the treatment of fracture of femoral neck according to claim 1, is characterized in that: described hold-down screw is full thread lock screw, and head of screw is provided with screw thread, the thread lock in the screw hole on head of screw and blade plate.
5. the bone-knitting device for the treatment of fracture of femoral neck according to claim 1, is characterized in that: described hold-down screw is all vertically inserted in femur.
6. the bone-knitting device for the treatment of fracture of femoral neck according to claim 1, is characterized in that: described inverted triangle is equilateral triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628704.9U CN204260806U (en) | 2014-10-28 | 2014-10-28 | A kind of bone-knitting device for the treatment of fracture of femoral neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628704.9U CN204260806U (en) | 2014-10-28 | 2014-10-28 | A kind of bone-knitting device for the treatment of fracture of femoral neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204260806U true CN204260806U (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420628704.9U Expired - Fee Related CN204260806U (en) | 2014-10-28 | 2014-10-28 | A kind of bone-knitting device for the treatment of fracture of femoral neck |
Country Status (1)
| Country | Link |
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| CN (1) | CN204260806U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352270A (en) * | 2014-10-28 | 2015-02-18 | 苏州瑞华医院有限公司 | Bone connecting device for treating femoral neck fracture |
| CN108378916A (en) * | 2018-05-08 | 2018-08-10 | 中国人民解放军总医院 | A kind of locking steel plate resetted for fracture of neck of femur |
| CN108742812A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of reset support construction for fracture of neck of femur |
| CN108742807A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of set stack structure resetted for fracture of neck of femur |
| CN109350218A (en) * | 2018-10-31 | 2019-02-19 | 中国人民解放军第四军医大学 | A kind of fixed device of screw placement for fracture of neck of femur model |
| RU214643U1 (en) * | 2022-06-10 | 2022-11-08 | федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный университет имени Г.Р. Державина" | Cannulated screw for osteosynthesis with double multi-pitch thread |
-
2014
- 2014-10-28 CN CN201420628704.9U patent/CN204260806U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352270A (en) * | 2014-10-28 | 2015-02-18 | 苏州瑞华医院有限公司 | Bone connecting device for treating femoral neck fracture |
| CN108378916A (en) * | 2018-05-08 | 2018-08-10 | 中国人民解放军总医院 | A kind of locking steel plate resetted for fracture of neck of femur |
| CN108742812A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of reset support construction for fracture of neck of femur |
| CN108742807A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of set stack structure resetted for fracture of neck of femur |
| CN109350218A (en) * | 2018-10-31 | 2019-02-19 | 中国人民解放军第四军医大学 | A kind of fixed device of screw placement for fracture of neck of femur model |
| CN109350218B (en) * | 2018-10-31 | 2023-11-10 | 中国人民解放军第四军医大学 | Screw implantation fixing device for femur neck fracture model |
| RU214643U1 (en) * | 2022-06-10 | 2022-11-08 | федеральное государственное бюджетное образовательное учреждение высшего образования "Тамбовский государственный университет имени Г.Р. Державина" | Cannulated screw for osteosynthesis with double multi-pitch thread |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171028 |