CN203953783U - A kind of near end of thighbone fixed structure - Google Patents
A kind of near end of thighbone fixed structure Download PDFInfo
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- CN203953783U CN203953783U CN201420441211.4U CN201420441211U CN203953783U CN 203953783 U CN203953783 U CN 203953783U CN 201420441211 U CN201420441211 U CN 201420441211U CN 203953783 U CN203953783 U CN 203953783U
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- lock screw
- hollow lock
- jackscrew
- steel plate
- screw
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Abstract
The utility model discloses a kind of near end of thighbone fixed structure, comprise: steel plate and be installed on hollow lock screw and the jackscrew in steel plate, described steel plate is polymorphic structure, in described steel plate, be provided with several screwed holes, described hollow lock screw and jackscrew are installed in screwed hole successively, the head of described hollow lock screw is provided with quincunx recess, the afterbody of described hollow lock screw is provided with thread segment, the end of thread segment is provided with three otch and three cutting blades that are wedge angle setting that are 90 ° of settings, described hollow lock screw is through the through femoral head of neck of femur, the end of described jackscrew is provided with quincunx recess, between described jackscrew and hollow lock screw, be provided with the fine motion space for the fine motion of hollow lock screw.Thereby be conducive to the rehabilitation after between twenty and fifty Fracture of femur.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of near end of thighbone fixed structure.
Background technology
Femur is again Thigh bone, and violence directly hits, from eminence pendant, fall, Vehicular impact, roll etc. and all can cause Fracture of femur.While there is Fracture of femur, lower limb are stiff, and fracture serious swelling, pain also can occur the deformities such as distortion or angulation, sometimes can occur that Leg length shortens.As there being open wound simultaneously, the state of an illness is more serious, often can make patient suffer a shock.Femur is the bone of whole body maximum, after fracture as not in time, processes, and can cause the severe complications such as patient's massive hemorrhage, nerve injury.
Causing old people that fracture occurs has two Fundamentals, osteoporotic bone intensity decreases, and on neck of femur, trophema pore in district's gathers in addition, all can make neck of femur biomethanics structure weaken, and makes neck of femur fragile.In addition, because of the muscle group regression of old people's hip week, bradykinesia, can not effectively offset the harmful stress of hip, in addition hip is subject to stress large (2～6 times of body weight), and local stress is complicated and changeable, does not therefore need great violence, as level land slip, by falling on bed or lower limb reverse suddenly, even without obvious wound in the situation that, can fracture.And femoral neck fractures in young and middle aged adults, often because major injury falls and causes injury as traffic accident or eminence.Because crossing, spend heavy burden work of a specified duration or walking, fracture person occurs gradually, be referred to as fatigue fracture.There is some difference for recovery after femoral neck fractures in young and middle aged adults and the recovery after senile fracture, old year owing to being mostly comminuted fracture, and bone growth speed is slower, therefore the steel plate fixing structure using after fracture is for fixedly securing shape steel plate structure, only need bone to fixedly secure, and for adolescence, due to its bone growth speed, therefore the steel plate fixing structure to adolescence's operation use requires it to have certain fine motion, is conducive to like this recovery of adolescence.
Utility model content
The purpose of this utility model is to provide a kind of near end of thighbone fixed structure that can fine motion, to overcome deficiency of the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of near end of thighbone fixed structure, comprise: steel plate and be installed on hollow lock screw and the jackscrew in steel plate, described steel plate is polymorphic structure, in described steel plate, be provided with several screwed holes, described hollow lock screw and jackscrew are installed in screwed hole successively, the head of described hollow lock screw is provided with quincunx recess, the afterbody of described hollow lock screw is provided with thread segment, the end of thread segment is provided with three otch and three cutting blades that are wedge angle setting that are 90 ° of settings, described hollow lock screw is through the through femoral head of neck of femur, the end of described jackscrew is provided with quincunx recess, between described jackscrew and hollow lock screw, be provided with the fine motion space for the fine motion of hollow lock screw.
Preferably, in above-mentioned near end of thighbone fixed structure, the quantity of described screwed hole, hollow lock screw and jackscrew is 3, and a hollow lock screw and a jackscrew are installed in each screwed hole.
Preferably, in above-mentioned near end of thighbone fixed structure, in described hollow lock screw cutting blade, between cutting blade face of area maximum and the tangent plane of screw thread, be 50 ° of angles and arrange.
Preferably, in above-mentioned near end of thighbone fixed structure, described steel plate is made by titanium alloy.
For achieving the above object, another technical scheme that this utility model adopts is: a kind of near end of thighbone fixed structure, comprising: steel plate, screw and jackscrew, in described steel plate, be provided with screwed hole, and described screw and jackscrew are installed in screwed hole successively.
This utility model beneficial effect is: this utility model is installed jackscrew by the rear end in hollow lock screw, thereby make to have between hollow lock screw and jackscrew the fine motion space of confession hollow lock screw fine motion, and then being more conducive to the rehabilitation after between twenty and fifty Fracture of femur, arranging of this jackscrew can prevent screw installation backed off after random equally in addition.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of this utility model light plate;
Fig. 2 is the main TV structure schematic diagram of hollow lock screw in this utility model;
Fig. 3 is the left TV structure schematic diagram of hollow lock screw in this utility model;
Fig. 4 is the right TV structure schematic diagram of hollow lock screw in this utility model;
Fig. 5 is the structural representation of jackscrew in this utility model;
Fig. 6 is that hollow lock screw and jackscrew are installed on the structural representation after steel plate;
Fig. 7 is the sectional structure schematic diagram along A-A line described in Fig. 6.
In Fig. 1 to Fig. 7: 1, steel plate, 10, screwed hole, 2, hollow lock screw, 20,30, quincunx recess, 21, thread segment, 22, otch, 23, cutting blade, 24, cutting blade face, 25, tangent plane, 3, jackscrew, 4, fine motion space.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.The example of these preferred implementations has been carried out illustration in the accompanying drawings.The embodiment of the present utility model of describing shown in accompanying drawing and is with reference to the accompanying drawings only exemplary, and this utility model is not limited to these embodiments.
At this, also it should be noted that, for fear of the details because of unnecessary fuzzy this utility model, only show in the accompanying drawings with according to the closely-related structure of scheme of the present utility model and/or treatment step, and omitted other details little with this utility model relation.
Shown in ginseng Fig. 1, steel plate 1 in this utility model is polymorphic structure, the structure of its installed surface and greater trochanter of femur lower end match, this plate size is less, be mainly used in Minimally Invasive Surgery, in the present embodiment, steel plate is preferably titanium alloy material, in described steel plate 1, be provided with three screwed holes 10, the line of centres triangularity of described three screwed holes 10 arranges.
Shown in ginseng Fig. 2, Fig. 3, Fig. 4, hollow lock screw 2 heads in this utility model are provided with quincunx recess 20, afterbody is provided with thread segment 21, the end of thread segment is provided with three otch 22 that are 90 ° of settings and three and is the cutting blades 23 that wedge angle arranges, and in cutting blade, between area maximum cutting blade face 24 and the tangent plane 25 of screw thread, is 50 ° of angles settings.The design of this kind of structure make screw to be screwed into power stronger, thereby greatly improve the success rate of operation.
Shown in ginseng Fig. 5, in order to be applicable to Minimally Invasive Surgery, jackscrew 3 length in this utility model are shorter, and one end of jackscrew 3 is provided with quincunx recess 30, thus wrench operated that can be conveniently supporting with it.
Shown in ginseng Fig. 6 and Fig. 7, during installation, hollow lock screw 2 is first fit in the screwed hole 10 of steel plate, then jackscrew 3 is installed in screwed hole 10 again, the setting of jackscrew 3 not only can prevent that hollow lock screw 2 from quitting the subscription of, also make to have between jackscrew 3 and hollow lock screw 2 the fine motion space 4 of confession hollow lock screw 2 fine motions, so-called fine motion is the movement that amplitude is less, due between twenty and fifty bone growth speed, if screw is directly squeezed in femur through steel plate as in prior art, will make fixing tighter of femur, be unfavorable for the rehabilitation after Fracture of femur, this utility model is because the rear end in hollow lock screw 2 arranges jackscrew 3, and between jackscrew 3 and hollow lock screw 2, fine motion space 4 is set, make the skeleton movement that hollow lock screw 2 can be suitable in the process of growth, thereby be more beneficial to the growth of between twenty and fifty skeleton.
In sum, this near end of thighbone fixed structure in this utility model is relatively applicable to the operative treatment after between twenty and fifty Fracture of femur, certainly applicable too for Senile femoral fracture patient, be only on mounting means, to have difference, when old people is performed the operation, jackscrew in this utility model directly and screw-driving, first pressurize and fix afterwards, do not leave fine motion space between the two, screw both cannot produce fine motion like this, can avoid again quitting the subscription of.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.
Claims (5)
1. a near end of thighbone fixed structure, it is characterized in that, comprise: steel plate and be installed on hollow lock screw and the jackscrew in steel plate, described steel plate is polymorphic structure, in described steel plate, be provided with several screwed holes, described hollow lock screw and jackscrew are installed in screwed hole successively, the head of described hollow lock screw is provided with quincunx recess, the afterbody of described hollow lock screw is provided with thread segment, the end of thread segment is provided with three otch and three cutting blades that are wedge angle setting that are 90 ° of settings, described hollow lock screw is through the through femoral head of neck of femur, the end of described jackscrew is provided with quincunx recess, between described jackscrew and hollow lock screw, be provided with the fine motion space for the fine motion of hollow lock screw.
2. a kind of near end of thighbone fixed structure as claimed in claim 1, is characterized in that: the quantity of described screwed hole, hollow lock screw and jackscrew is 3, and a hollow lock screw and a jackscrew are installed in each screwed hole.
3. a kind of near end of thighbone fixed structure as claimed in claim 2, is characterized in that: in described hollow lock screw cutting blade, between cutting blade face of area maximum and the tangent plane of screw thread, be 50 ° of angles and arrange.
4. a kind of near end of thighbone fixed structure as described in claim 1 or 2 or 3, is characterized in that: described steel plate is made by titanium alloy.
5. a near end of thighbone fixed structure, is characterized in that, comprising: steel plate, screw and jackscrew, in described steel plate, be provided with screwed hole, and described screw and jackscrew are installed in screwed hole successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441211.4U CN203953783U (en) | 2014-08-06 | 2014-08-06 | A kind of near end of thighbone fixed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441211.4U CN203953783U (en) | 2014-08-06 | 2014-08-06 | A kind of near end of thighbone fixed structure |
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| Publication Number | Publication Date |
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| CN203953783U true CN203953783U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420441211.4U Active CN203953783U (en) | 2014-08-06 | 2014-08-06 | A kind of near end of thighbone fixed structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030319A (en) * | 2015-08-24 | 2015-11-11 | 苏州市康力骨科器械有限公司 | Fixing structure of multidirectional locking steel plate for proximal femur |
-
2014
- 2014-08-06 CN CN201420441211.4U patent/CN203953783U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030319A (en) * | 2015-08-24 | 2015-11-11 | 苏州市康力骨科器械有限公司 | Fixing structure of multidirectional locking steel plate for proximal femur |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215616 Luyuan West Ring Road (Nanyuan East Road), Tangqiao Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: Suzhou Kangli Orthopedics Instrument Co., Ltd. Address before: 215600 Zhangjiagang, Suzhou, Jiangsu, Jinjiang Fengzhen Patentee before: Suzhou Kangli Orthopedics Instrument Co., Ltd. |