CN102920501B - Metal bone fracture plate with stress dispersing structure - Google Patents
Metal bone fracture plate with stress dispersing structure Download PDFInfo
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- CN102920501B CN102920501B CN201210507696.8A CN201210507696A CN102920501B CN 102920501 B CN102920501 B CN 102920501B CN 201210507696 A CN201210507696 A CN 201210507696A CN 102920501 B CN102920501 B CN 102920501B
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- bone fracture
- fracture plate
- jackscrew
- metal bone
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Abstract
The invention discloses a metal bone fracture plate with a stress dispersing structure, comprising a bone fracture screw hole arranged on the bone fracture plate, wherein a plurality of top thread screw holes are distributed along the periphery of the bone fracture plate on the surface of the bone fracture plate, the top thread screw holes are internally and respectively provided with a top thread, the head of each top thread is provided with a hexagonal groove, the top threads are contacted with the surface of a bone by the top thread screw holes, a ring-shaped groove is arranged on the external rotation surface of each top thread, a plurality of radial opening grooves are arranged from one side faces of the ring-shaped grooves to the tails of the top threads, and the opening grooves are communicated with the bottoms of the hexagonal grooves arranged at the heads of the top threads. According to the metal bone fracture plate, the whole structure of a product does not need to be changed, and the metal bone fracture plate can be selected and used in accordance with specific conditions only by increasing the force bearing points of the metal bone fracture plate and being provided with various top threads with different lengths, so that the requirement of bone fracture surgery can be met. According to the metal bone fracture plate, the stress can be effectively dispersed, the fracture of the metal bone fracture plate caused by uneven stress can be avoided, and the patient pain and the economic loss caused by the fracture of the metal bone fracture plate can be reduced; and the metal bone fracture plate is simple to machine, and convenient to operate when the surgery is carried out by doctors.
Description
Technical field
The present invention relates to a kind of metal bone fracture plate structure, particularly relate to a kind of metal bone fracture plate with stress dispersion structure.
Background technology
When metal bone fracture plate is for fracture operation, make the Osteosynthetic implants that fracture fracture connects.Because the different surface of skeleton becomes irregular status, the uniform contact on bone surface and blade plate surface effectively can not be formed when using blade plate to connect, cause and form stress point on blade plate, for the metal bone fracture plate used in the fracture operations such as femur, tibia, fibula, humerus, ulna and radius, convalescent period all exists because moment is bigger than normal after surgery, metal bone fracture plate unbalance stress causes the situation that the blade plate of some ruptures to happen occasionally, and need to carry out second operation, make patient bear misery on health and economic loss.
Summary of the invention
For above-mentioned prior art, in order to solve the defect of existing metal bone fracture plate structure, the invention provides a kind of metal bone fracture plate with stress dispersion structure, without the need to changing Total Product structure, add the stress point of metal bone fracture plate, the generation that can effectively eliminate stress, prevent metal bone fracture plate from rupturing because of unbalance stress, processing is simple, easy to operate during surgical.
In order to solve the problems of the technologies described above, the technical scheme that the metal bone fracture plate that the present invention has stress dispersion structure is achieved is: comprise the bone screw hole be arranged on blade plate, the plate face of described blade plate is provided with peripherally equally distributed multiple jackscrew screw, is provided with jackscrew in described jackscrew screw.
The anti-fracture metal bone fracture plate of the present invention, the head of described jackscrew is provided with interior hex-shaped recess.The external rotary surface of described jackscrew is provided with cannelure, and is provided with multiple radial opening groove from a side of described cannelure to the afterbody of jackscrew, and described radial opening groove is all through with described interior hex-shaped recess.The quantity of multiple radial opening groove is 4.Multiple radial opening groove is uniform diametrically.
Compared with prior art, the invention has the beneficial effects as follows: jackscrew structure is set on blade plate, use during metal bone fracture plate of the present invention and held out against with skeleton respectively by the jackscrew in multiple jackscrew screw, the jackscrew that each and corresponding jackscrew screw coordinates defines the multi-point support between blade plate and skeleton, namely blade plate and bone surface have Multi-contact, eliminate or disperseed the problem of stress concentration at blade plate and bone-contact point place, thus make blade plate uniform stressed, the probability of blade plate fracture in the future can be effectively reduced, decrease the misery that patient produces because of blade plate fracture, avoid loss economically.
Accompanying drawing explanation
Fig. 1-1 is the structural representation of the anti-fracture metal bone fracture plate of the present invention;
Fig. 1-2 is the top view of anti-fracture metal bone fracture plate shown in Fig. 1-1;
Fig. 2-1 is the top view of jackscrew embodiment one in the present invention;
Fig. 2-2 is axial full sectional views of jackscrew shown in Fig. 2-1;
Fig. 2-3 is perspective view of jackscrew embodiment one in the present invention;
Fig. 3-1 is the top view of jackscrew embodiment one in the present invention;
Fig. 3-2 is axial full sectional views of jackscrew shown in Fig. 3-1;
Fig. 3-3 is perspective view that in the present invention, jackscrew embodiment two oblique upper is observed;
Fig. 3-4 is perspective view that in the present invention, the oblique below of jackscrew embodiment two is observed;
Fig. 4 is the using state schematic diagram of the anti-fracture metal bone fracture plate of the present invention.
In figure: hex-shaped recess, 5-open slot, 6-cannelure in 1-blade plate, 2-jackscrew, 3-jackscrew screw, 4-, 7-bone screw hole, 8-bone screw, 9-blade plate, 10-skeleton.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
As shown in Fig. 1-1, Fig. 1-2 and Fig. 4, the present invention has the metal bone fracture plate of stress dispersion structure, comprise the bone screw hole 7 be arranged on blade plate 1, the shape of described bone screw hole 7 and structure are also unrestricted, can be any one in splayed hole, screwed hole, circular hole and slotted hole, shown in Fig. 1-2 be slotted hole; The plate face of blade plate 1 is provided with the multiple jackscrew screws 3 peripherally distributed, in jackscrew screw 3, is provided with jackscrew 2.During use, after arranging the position of blade plate 1, according to blade plate 1 and the gap that is connected between skeleton 10, choose the jackscrew 2 of appropriate length, and respectively jackscrew 2 is screwed in jackscrew screw 3, and then by each jackscrew 2 and the surface contact of skeleton, make blade plate 1 uniform stressed, effectively avoid postoperative due to blade plate be connected bone-contact point and become stress concentration point, under preventing the effect of concentrating at stress, blade plate ruptures.
The head of described jackscrew 2 is provided with screwdriver mouth or interior hex-shaped recess 4, and described screwdriver mouth can be in-line or cross.Fig. 2-1, Fig. 2-2 and Fig. 2-3 shows the structure of jackscrew embodiment one, and namely head is the structure of the jackscrew of interior hex-shaped recess 4.Doctor is in operation process, use die nut to be screwed in jackscrew screw 3 by jackscrew 2, each jackscrew 2 holds out against the bone surface below blade plate, forms multi-point support, eliminate or disperseed the problem of stress concentration at blade plate and bone-contact point place, thus make blade plate uniform stressed.
In order to avoid jackscrew occurs that rollback loosens in the future, Fig. 3-1, Fig. 3-2, Fig. 3-3 and Fig. 3-4 shows the structure with the jackscrew embodiment two preventing jackscrew from loosening, namely the head of described jackscrew 2 is provided with interior hex-shaped recess 4, the external rotary surface of described jackscrew 2 is provided with cannelure 6, and multiple radial opening groove 5 can be provided with from a side of described cannelure 6 to the afterbody of jackscrew 2, described radial opening groove 5 is all through with described interior hex-shaped recess 4.Doctor is in operation process, screw in jackscrew 2 and make it contact with the bone surface below blade plate, then, instrument is utilized to apply axial force to jackscrew 2, because the position intensity being provided with cannelure 6 is more weak, and cannelure 6 is to have uniform radial opening groove 5, define " multijaw " at the afterbody of jackscrew 2, under the effect of axial force, " pawl " of jackscrew 2 afterbody opens respectively to outer distortion, thus reach the effect fixing jackscrew in the axial direction, avoid jackscrew (or life in the future in Rehabilitation active procedure, in production process) there is phenomenon that is loosening or that come off, ensure the normal use of blade plate.
Due in concrete operation, connect skeleton or the not isoacceptor of different parts, between its metal bone fracture plate and skeleton, differ in gap, therefore, jackscrew 2 described in the anti-fracture metal bone fracture plate of the present invention has the specification of multiple different length, can select as the case may be, to adapt to the requirement of fracture reduction operation.
Fig. 4 shows the using state of the anti-fracture metal bone fracture plate of the present invention, first, bone screw 8 is utilized blade plate 9 and skeleton 10 to be fixed, with dipstick measure each jackscrew screw on blade plate 9 above to the degree of depth between below skeleton 10 surface, the jackscrew 2 of corresponding length is selected according to the degree of depth recorded, and with hexagon apparatus, each jackscrew 2 is screwed in jackscrew screw respectively, until jackscrew top is to bone surface, in addition, whole jackscrew screw all to must be implanted jackscrew respectively, can not omit, thus at blade plate 9 and be connected between skeleton 10 and define multi-point support, eliminate or disperseed the problem of stress concentration at blade plate 9 and skeleton 10 contact point place, thus make blade plate uniform stressed.
Although invention has been described for composition graphs above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; when not departing from present inventive concept, can also make a lot of distortion, these all belong within protection of the present invention.
Claims (6)
1. one kind has the metal bone fracture plate of stress dispersion structure, comprise the bone screw hole (7) be arranged on blade plate (1), it is characterized in that: the plate face of described blade plate (1) is provided with the multiple jackscrew screws (3) along its circumferential distribution, jackscrew (2) is provided with respectively in each jackscrew screw (3), the precession end of each jackscrew (2) all with the surface contact of skeleton, thus make blade plate (1) uniform stressed.
2. there is the metal bone fracture plate of stress dispersion structure according to claim 1, it is characterized in that: the head of described jackscrew (2) is provided with interior hex-shaped recess (4).
3. have the metal bone fracture plate of stress dispersion structure according to claim 1, it is characterized in that: the head of described jackscrew (2) is provided with screwdriver mouth, described screwdriver mouth is in-line or cross.
4. there is the metal bone fracture plate of stress dispersion structure according to claim 2, it is characterized in that: the external rotary surface of described jackscrew (2) is provided with cannelure (6), and being provided with multiple radial opening groove (5) from a side of described cannelure (6) to the afterbody of jackscrew (2), described radial opening groove (5) is all through with described interior hex-shaped recess (4).
5. the metal bone fracture plate with stress dispersion structure according to claim 4, is characterized in that: the quantity of multiple radial opening groove (5) is 4.
6. the metal bone fracture plate with stress dispersion structure according to claim 3 or 4, is characterized in that: multiple radial opening groove (5) is uniform diametrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507696.8A CN102920501B (en) | 2012-11-30 | 2012-11-30 | Metal bone fracture plate with stress dispersing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210507696.8A CN102920501B (en) | 2012-11-30 | 2012-11-30 | Metal bone fracture plate with stress dispersing structure |
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| Publication Number | Publication Date |
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| CN102920501A CN102920501A (en) | 2013-02-13 |
| CN102920501B true CN102920501B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210507696.8A Active CN102920501B (en) | 2012-11-30 | 2012-11-30 | Metal bone fracture plate with stress dispersing structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094940A (en) * | 1993-04-27 | 1994-11-16 | 梅德费洛普有限公司 | The retaining element that is used for implanting tissue internal fixation prosthese, artificial joint parts or analog |
| CN1177918A (en) * | 1996-02-28 | 1998-04-01 | 卢茨·比德尔曼 | Bone screw |
| CN1230880A (en) * | 1996-09-13 | 1999-10-06 | 大卫·阿塔里 | Expansive osteosynthesis sheath |
| CN1433285A (en) * | 2000-02-10 | 2003-07-30 | 莱班特外科器材工业有限公司 | Dorsolumbar and lumbosacral vertebrae fixing system |
| CN2936183Y (en) * | 2006-07-20 | 2007-08-22 | 中国人民解放军第四军医大学 | Expansion type spongy bone hollow screw |
| CN201260695Y (en) * | 2008-08-19 | 2009-06-24 | 泰安市中心医院 | Steel plate device for fixing bone fracture |
| CN202942200U (en) * | 2012-11-30 | 2013-05-22 | 毕思维 | Metal bone fracture plate adopting stress dispersion structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195364Y (en) * | 1993-08-21 | 1995-04-26 | 申文龙 | Electronic program control point-to-point controlled sound toy |
-
2012
- 2012-11-30 CN CN201210507696.8A patent/CN102920501B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094940A (en) * | 1993-04-27 | 1994-11-16 | 梅德费洛普有限公司 | The retaining element that is used for implanting tissue internal fixation prosthese, artificial joint parts or analog |
| CN1177918A (en) * | 1996-02-28 | 1998-04-01 | 卢茨·比德尔曼 | Bone screw |
| CN1230880A (en) * | 1996-09-13 | 1999-10-06 | 大卫·阿塔里 | Expansive osteosynthesis sheath |
| CN1433285A (en) * | 2000-02-10 | 2003-07-30 | 莱班特外科器材工业有限公司 | Dorsolumbar and lumbosacral vertebrae fixing system |
| CN2936183Y (en) * | 2006-07-20 | 2007-08-22 | 中国人民解放军第四军医大学 | Expansion type spongy bone hollow screw |
| CN201260695Y (en) * | 2008-08-19 | 2009-06-24 | 泰安市中心医院 | Steel plate device for fixing bone fracture |
| CN202942200U (en) * | 2012-11-30 | 2013-05-22 | 毕思维 | Metal bone fracture plate adopting stress dispersion structure |
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| CN102920501A (en) | 2013-02-13 |
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