CN204890154U - Multi -direction locking plate of upper arm bone near -end - Google Patents
Multi -direction locking plate of upper arm bone near -end Download PDFInfo
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- CN204890154U CN204890154U CN201520642707.2U CN201520642707U CN204890154U CN 204890154 U CN204890154 U CN 204890154U CN 201520642707 U CN201520642707 U CN 201520642707U CN 204890154 U CN204890154 U CN 204890154U
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Abstract
(B, ) the utility model discloses a multi -direction locking plate of upper arm bone near -end includes: rectangular this somatic part of shape and the head of buckling and extending from rectangular this somatic part of shape, rectangular this somatic part of shape and head all are equipped with the several screw hole, 3-6 incisions have been seted up on the pore wall of screw hole, the axial extension of screw hole, (b) (b) are followed to the incision the utility model provides a locking plate is through setting up several along the axially extended incision of screw hole at threaded hole to divide the round number section with the pore wall of screw hole, during the operation, the doctor can select set screw's wrong income angle according to the concrete position of fracture line, the utility model provides a screw hole structure can satisfy set screw's multi -direction wrong income demand, when set screw twists threaded hole, no matter twists to which direction, and the internal thread that always has a sector hole wall closes with set screw's external screw thread mutually soon. (B, )
Description
Technical field
this utility model relates to medical instruments field, particularly relates to the multi-direction locking steel plate of a kind of proximal humerus.
Background technology
shoulder joint is the maximum joint of physical activity scope, proximal humerus is its important component part, proximal humeral fracture is one of more common fracture, account for 4% ~ 5% of whole body fracture, proximal humerus generally comprises four parts: head of humerus, greater tubercle, lesser tubercle and humeral shaft, when the proximal part of humerus is subjected to displacement fracture, the fracture portions adopting steel plate to fix proximal humerus under normal circumstances makes it recover anatomical structure, on the locking steel plate of fixing proximal humerus part, generally several screwed hole is all offered in prior art, by being provided with several hold-down screw thus locking steel plate is fixed in proximal humerus in several screwed hole, in prior art, the defect of locking proximal humerus plate is: the direction of each screwed hole all designs according to predetermined direction, therefore can only install according to the direction of screwed hole when hold-down screw screws in, but in actual operation process, the position of fracture is uncertain often, therefore the locking steel plate of this kind of fixed-direction screwed hole is adopted just to have larger limitation when doing proximal humeral fracture operation.
Utility model content
the purpose of this utility model is to provide the multi-direction locking steel plate of a kind of structure proximal humerus simple, easy for installation, thus can realize fixing the various different fracture of proximal humerus, substantially increases the success rate of operation.
for achieving the above object, the technical solution adopted in the utility model is: the multi-direction locking steel plate of a kind of proximal humerus, comprise: strip body and the head extended from the bending of strip body, described strip body and head are equipped with several screwed hole, the hole wall of described screwed hole offers 3 ~ 6 otch, described otch threadingly hole axis extend.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the screw thread in described screwed hole is trapezoidal thread.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the shape of described otch is arc-shaped.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the hole wall of described screwed hole offers 4 otch, 4 otch circumferentially arranging in even at screwed hole.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the side of strip body be provided with several first protuberance and with spaced several first recess of the first protuberance, the opposite side of described strip body be provided with several second protuberance and with spaced several second recess of the second protuberance, described several first protuberance and several second protuberance symmetrical relative to the longitudinal axis of strip body, described several first recess and several second recess symmetrical relative to the longitudinal axis of strip body, described strip body meet:
relational expression 1:f=a+b;
relational expression 2:a=b;
wherein, the distance between the f: the first recess and the second recess, the first recess and the second recess symmetrical; A: the first protuberance is from the distance of nearest screwed hole; B: with the distance of symmetrical the second protuberance of the first protuberance from nearest screwed hole.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, described screwed hole comprises: 6 the head screwed holes being arranged at 4 body screwed holes on strip body and being arranged on head, 4 body screwed holes comprise: first body screwed hole, the second body screwed hole, the 3rd body screwed hole and the 4th body screwed hole, be provided with Kirschner wire fixation hole between described first body screwed hole and the second body screwed hole, between described second body screwed hole and the 3rd body screwed hole, be provided with oval hole of pressurizeing.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the multi-direction locking steel plate of described proximal humerus is made up of titanium alloy.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the vertical dimension between the diapire of described strip body and head roof is 19.15mm.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, described head is that curved surface is arranged.
preferably, in the above-mentioned multi-direction locking steel plate of a kind of proximal humerus, the free terminal of described strip body is that wedge is arranged.
due to the utilization of technique scheme, this utility model compared with prior art has following advantages: 1, locking steel plate in this utility model by arranging the axially extended otch in several threadingly holes in screwed hole, thus the hole wall of screwed hole is divided into several sections, during operation, what doctor can select hold-down screw according to the particular location of fracture line is screwed into angle, thread pore structure in this utility model can meet the multi-direction of hold-down screw and be screwed into demand, when hold-down screw is screwed in screwed hole, which no matter twist to direction, the female thread of a sector hole wall is always had to screw mutually with the external screw thread of hold-down screw, all the other a few sector hole walls extrude hold-down screw, thus realize multi-direction locking.2, this utility model is by arranging protuberance and recess in the both sides of strip body, thus is beneficial to the reconstruction of steel plate, and the size design additionally by protuberance and recess meets certain relational expression, thus avoids stress to concentrate.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the multi-direction locking steel plate of proximal humerus in this utility model.
accompanying drawing 2 is the plan structure schematic diagram of the multi-direction locking steel plate of proximal humerus in this utility model.
wherein: 1, strip body, 2, head, 3, screwed hole, 4, otch, 5, head threads hole, 6, first body screwed hole, 7, the second body screwed hole, the 8, the 3rd body screwed hole, the 9, the 4th body screwed hole, 10, Kirschner wire fixation hole, 11, oval pressurization hole, 12, diapire, 13, roof, the 14, first protuberance, the 15, first recess, 16, the second protuberance, the 17, second recess;
distance between f: the first recess and symmetrical second recess;
a: the first protuberance is from the distance of nearest screwed hole;
b: with the distance of symmetrical the second protuberance of the first protuberance from nearest screwed hole.
Detailed description of the invention
below in conjunction with accompanying drawing, the technical solution of the utility model is further elaborated.
shown in ginseng Fig. 1 and Fig. 2, the multi-direction locking steel plate of a kind of proximal humerus, comprising: strip body 1 and the head 2 extended from strip body 1 bending, and the free terminal of described strip body 1 is that wedge is arranged.Described head 2 is arranged in curved surface.Described strip body 1 and head 2 are equipped with several screwed hole 3, the hole wall of described screwed hole 3 offer 3 ~ 6 otch evenly arranged, and the axis in described otch threadingly hole extends.Hole wall is divided into several sections by otch, during operation, what doctor can select hold-down screw according to the particular location of fracture line is screwed into angle, thread pore structure in this utility model can meet the multi-direction of hold-down screw and be screwed into demand, when hold-down screw is screwed in screwed hole 3, no matter twist to which direction, always have the female thread of a sector hole wall to screw mutually with the external screw thread of hold-down screw, all the other a few sector hole walls extrude hold-down screw, thus realize multi-direction locking.The quantity of described otch can not be too many, can not very little, and otch quantity is too many, and every sector hole wall is just narrow, will be inadequate with the power that screws of hold-down screw, if otch quantity is very few, cannot make again the multi-direction installation of hold-down screw.Screw thread in described screwed hole 3 is trapezoidal thread, thus greatly can improve coupling mechanism force, in the present embodiment, the hole wall of described screwed hole 3 offers 4 otch 4, 4 otch 4 circumferentially arranging in even at screwed hole 3, the shape of described otch 4 is arc-shaped, add and adopt man-hour drill bit to get out, certainly in other embodiments, the shape of otch 4 also can be rectangle, rectangular slits adds man-hour requirement milling cutter and mills out, described screwed hole 3 comprises: 6 the head screwed holes 5 being arranged at 4 body screwed holes on strip body 1 and being arranged on head 2, 4 body screwed holes comprise: first body screwed hole 6, second body screwed hole 7, 3rd body screwed hole 8 and the 4th body screwed hole 9, Kirschner wire fixation hole 10 is provided with between described first body screwed hole 6 and the second body screwed hole 7, oval hole 11 of pressurizeing is provided with between described second body screwed hole 7 and the 3rd body screwed hole 8.The multi-direction locking steel plate of described proximal humerus is made up of titanium alloy.Vertical dimension between the diapire 12 of described strip body 1 and head roof 13 is 19.15mm.
the side of described strip body 1 be provided with several first protuberance 14 and with spaced several first recess 15 of the first protuberance 14, the opposite side of described strip body 1 be provided with several second protuberance 16 and with spaced several second recess 17 of the second protuberance 16, described several first protuberance 14 is symmetrical relative to the longitudinal axis of strip body 1 with several second protuberance 16, described several first recess 15 is symmetrical relative to the longitudinal axis of strip body 1 with several second recess 17, and described strip body 1 meets:
relational expression 1:f=a+b;
relational expression 2:a=b;
wherein, the distance between the f: the first recess 15 and the second recess 17, the first recess 15 and the second recess 17 symmetrical; A: the first protuberance 14 is from the distance of nearest screwed hole; B: with the distance of symmetrical the second protuberance 16 of the first protuberance 14 from nearest screwed hole.In operation process, due to everyone Skeletal size, all there is some difference, therefore the steel plate of one piece of fixed structure can not be applicable to everyone, therefore steel plate is needed to have reconstruction capability, that is, after steel plate is installed on human body, also need to carry out bending fine setting according to everyone concrete skeletal shape to steel plate, in this utility model, the design of strip body both sides protuberance and recess is compared to both sides of the prior art linear design, its bending angle is more prone to control, doctor operates convenient, substantially increase the reconstruction performance of steel plate, size design additionally by protuberance and recess meets certain relational expression, stress can be avoided to concentrate.
in sum, locking steel plate in this utility model by arranging the axially extended otch in several threadingly holes in screwed hole, thus the hole wall of screwed hole is divided into several sections, during operation, what doctor can select hold-down screw according to the particular location of fracture line is screwed into angle, thread pore structure in this utility model can meet the multi-direction of hold-down screw and be screwed into demand, when hold-down screw is screwed in screwed hole, which no matter twist to direction, the female thread of a sector hole wall is always had to screw mutually with the external screw thread of hold-down screw, all the other a few sector hole walls extrude hold-down screw, thus realize multi-direction locking.
above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to this utility model spirit change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (10)
1. the multi-direction locking steel plate of proximal humerus, comprise: strip body and the head extended from the bending of strip body, it is characterized in that: described strip body and head are equipped with several screwed hole, the hole wall of described screwed hole offers 3 ~ 6 otch, described otch threadingly hole axis extend.
2. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the screw thread in described screwed hole is trapezoidal thread.
3. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the shape of described otch is arc-shaped.
4. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the hole wall of described screwed hole offers 4 otch, 4 otch circumferentially arranging in even at screwed hole.
5. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1 or 2 or 3, it is characterized in that: the side of strip body be provided with several first protuberance and with spaced several first recess of the first protuberance, the opposite side of described strip body be provided with several second protuberance and with spaced several second recess of the second protuberance, described several first protuberance and several second protuberance symmetrical relative to the longitudinal axis of strip body, described several first recess and several second recess symmetrical relative to the longitudinal axis of strip body, described strip body meets:
Relational expression 1:f=a+b;
Relational expression 2:a=b;
Wherein, the distance between the f: the first recess and the second recess, the first recess and the second recess symmetrical; A: the first protuberance is from the distance of nearest screwed hole; B: with the distance of symmetrical the second protuberance of the first protuberance from nearest screwed hole.
6. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, it is characterized in that: described screwed hole comprises: 6 the head screwed holes being arranged at 4 body screwed holes on strip body and being arranged on head, 4 body screwed holes comprise: first body screwed hole, second body screwed hole, 3rd body screwed hole and the 4th body screwed hole, Kirschner wire fixation hole is provided with between described first body screwed hole and the second body screwed hole, oval hole of pressurizeing is provided with between described second body screwed hole and the 3rd body screwed hole.
7. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the multi-direction locking steel plate of described proximal humerus is made up of titanium alloy.
8. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the vertical dimension between the diapire of described strip body and head roof is 19.15mm.
9. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: described head is that curved surface is arranged.
10. the multi-direction locking steel plate of a kind of proximal humerus according to claim 1, is characterized in that: the free terminal of described strip body is that wedge is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642707.2U CN204890154U (en) | 2015-08-24 | 2015-08-24 | Multi -direction locking plate of upper arm bone near -end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520642707.2U CN204890154U (en) | 2015-08-24 | 2015-08-24 | Multi -direction locking plate of upper arm bone near -end |
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| CN204890154U true CN204890154U (en) | 2015-12-23 |
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| CN201520642707.2U Active CN204890154U (en) | 2015-08-24 | 2015-08-24 | Multi -direction locking plate of upper arm bone near -end |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030316A (en) * | 2015-08-24 | 2015-11-11 | 苏州市康力骨科器械有限公司 | Multidirectional locking steel plate for proximal humerus |
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2015
- 2015-08-24 CN CN201520642707.2U patent/CN204890154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030316A (en) * | 2015-08-24 | 2015-11-11 | 苏州市康力骨科器械有限公司 | Multidirectional locking steel plate for proximal humerus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 215625 Sha Chau East Road, Zhangjiagang, Suzhou, Jiangsu Patentee before: Suzhou Kangli Orthopedics Instrument Co., Ltd. |
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| CP02 | Change in the address of a patent holder |