CN205126390U - Universal locking coaptation device - Google Patents
Universal locking coaptation device Download PDFInfo
- Publication number
- CN205126390U CN205126390U CN201520866338.5U CN201520866338U CN205126390U CN 205126390 U CN205126390 U CN 205126390U CN 201520866338 U CN201520866338 U CN 201520866338U CN 205126390 U CN205126390 U CN 205126390U
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- China
- Prior art keywords
- universal
- locking
- bone screw
- hole
- cardo ring
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Abstract
The utility model discloses an universal locking coaptation device includes the coaptation edition of books body, universal ring sum locking bone screw, be provided with a set of universal hole on the coaptation edition of books body, universal hole design is for heart -shaped, and its inner wall is the concave spherical surface, and it swells to be provided with one on the universal downthehole wall, the outer wall of universal ring sets up the convex spherical into the inner wall looks adaptation with universal hole, universal ring has the opening, installs in universal downthehole, the locking bone screw set up in universal intra -annular, screws the coaptation edition of books body, lock with the skeleton. The utility model discloses use with the cooperation of universal ring in universal hole, and the shape in universal hole has realized that the pearl is sold and the structure of coaptation board integration, and different symptoms of fracturing positions can be satisfied in the universal regulation of metal locking bone screw, lock easy operation, and risk coefficient is little, and the reliability is high.
Description
Technical field
This utility model relates to medical instruments field, specifically a kind of universal lock bone-knitting device.
Background technology
Universal locking fracture bone plate is the internal fixation apparatus that treatment fracture is both at home and abroad the most frequently used at present, existing Universal locking fracture bone plate market roughly has three kinds of structures: the first is Phillips-type or blossom type.Be exactly increase by four semicircle orifices on the basis in original locking screw thread hole, remove unnecessary screw thread; In other words, be exactly reduce the effective contact area of screw thread, play universal effect; The advantage of this universal lock plate is simple to operate, saves operating time, the blade plate that the templates such as adaptation hands, foot are thinner.The second is universal ring-like.Cardo ring side is opened four grooves and is joined the use of anti-lathe turner's tool, internal engagement locking bone screw or locking bone screw without a head; Advantage is, manufacture simple, cost is low, and assembling is simple, convenient to remove.Shortcoming needs to coordinate anti-lathe turner's tool to lock without when drill bushing, locking.The third is cardo ring and pearl pin fitting-type.Cardo ring is designed to inside and coordinates with metal locking bone screw, and outside coordinates with metal locking type osteopathy plate; Inside is threaded connection design, and outside is mating spherical surfaces design; Metal locking bone screw and cardo ring are fastenedly connected, under the effect of sphere, play universal effect.The effect of pearl pin prevents the 360 degree rotations when locking of metal locking bone screw, makes reliable lock, firm.Pearl pin is at present commercially with regard to a kind of form, and matched in clearance, reverse side rivet, and this assembling is more loaded down with trivial details, and cost is relatively high.Be applicable to the blade plate that slab is thicker.After surgery in recovery process, because pearl pin easily loosens in titanium plate, there is larger risk.According to this situation, we do on this basis and change, and pearl pin and blade plate are integrated, even if the trendy Universal locking fracture bone plate of one that solution pearl pin loosens problem and designs.
Utility model content
For solving the technical problem of above-mentioned existence, this utility model provides a kind of universal lock bone-knitting device, universal hole and cardo ring with the use of, the shape in universal hole achieves the pearl pin structure integrated with blade plate, metal locking bone screw universal adjustment, can meet the symptom of different fracture site, locking operation is simple, risk factor is little, and reliability is high.
For achieving the above object, the technical scheme that this utility model adopts is:
A kind of universal lock bone-knitting device, include blade plate body, cardo ring and locking bone screw, described blade plate body is provided with one group of universal hole, described universal hole is designed to heart, its inwall is concave spherical surface, and described universal hole inwall is provided with a projection, the outer wall of described cardo ring is set to the convex spherical suitable with the inwall in universal hole, described cardo ring has opening, is installed in universal hole, described locking bone screw is arranged in cardo ring, and blade plate body and skeleton are screwed, locked.
Described cardo ring inside arranges straight thread or taper thread, suitable with the shape of locking bone screw.
Described cardo ring is provided with the fillet of different radii, realizes the universal adjustment of locking bone screw.
Described locking bone screw can adopt metal locking screw, also can adopt cortex nail or spongiosa nail, the structure of described cardo ring and the form of locking bone screw suitable.
Described blade plate body is set to one end to be had and the strip treating the Special-Shaped Surface that the bone surface matching form of synthetism closes.
Projection on the inwall of described universal hole is set to semi-cylindrical.
This utility model structure is simple, and the profile design in universal hole achieves the structure of pearl pin and blade plate body one, and risk factor is low, and reliability is high; Semicolumn projection is set in the hole wall in universal hole, locking bone screw and cardo ring screw-internal thread fit during upper nail, during locking, semicolumn projection plays and stops cardo ring to rotate in hole, locking bone screw is locked and firmly, reliable, decrease on the one hand the use of antagonism sleeve, only need one locking bottle opener can be realized locking operation, simple to operate, save operating time, decrease instrument cost on the other hand, save manufacturing recourses; Cardo ring assembling is simple, and kind is many, is applicable to blade plate and the locking bone screw of different-thickness, meets the demand of different case; The fillet that design radial is different on cardo ring, achieves the universal angle of monolateral 30 to 45 degree of locking bone screw.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation;
Fig. 2 is cardo ring and blade plate phantom;
Fig. 3 is blade plate overall schematic;
Fig. 4 is this utility model application schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail:
As Figure 1-4, this universal lock bone-knitting device, include blade plate body 1, cardo ring 2 and locking bone screw 3, described blade plate body 1 is provided with one group of universal hole 4, described universal hole 4 is designed to heart, its inwall is concave spherical surface, and described universal hole 4 inwall is provided with a projection, the outer wall of described cardo ring 2 is set to the convex spherical suitable with the inwall in universal hole 4, described cardo ring 2 has opening, is installed in universal hole 4, described locking bone screw 3 is arranged in cardo ring 2, and blade plate body 1 and skeleton are screwed, locked.
As preferred mode, described cardo ring 2 inside arranges straight thread or taper thread, suitable with the shape of locking bone screw 3.
As preferred mode, described cardo ring 2 is provided with the fillet of different radii, realizes the universal adjustment of locking bone screw 3.
As preferred mode, described locking bone screw 3 can adopt metal locking screw, also can adopt cortex nail or spongiosa nail, the structure of described cardo ring 2 and the form of locking bone screw 3 suitable.
As preferred mode, described blade plate body 1 is set to one end to be had and the strip treating the Special-Shaped Surface that the bone surface matching form of synthetism closes.
As preferred mode, the projection on the inwall of described universal hole 4 is set to semi-cylindrical.
As shown in Figure 3, this blade plate body 1 has a top surface and a basal surface for synthetism head, described blade plate body 1 arranges one group of universal hole 4 of arranging along its axis direction, described universal hole 4 connects described top surface and basal surface, female thread can be designed to straight thread or taper thread, and profile and cardo ring 2 adopt mating spherical surfaces.Described locking bone screw 3 is arranged in described cardo ring 2, and this locking bone screw 3 also can be ball screw, can need to select according to operation.
Use step of the present utility model is sketched below in conjunction with Fig. 1-4:
A, one end of blade plate body 1 is connected on the side of bone fracture position, skeleton gets out corresponding bottom outlet, it have at least a clearing end be provided with screw thread, universal hole 4 is positioned at the opposite side of bone fracture position, described locking bone screw 3 is arranged in this universal hole 4, and this locking bone screw 3 is positioned at the initial end in universal hole 4;
B, the locating hole that brill is corresponding with described locking bone screw 3 position on skeleton;
C, locking bone screw 3 aimed at described locating hole and inserts in this locating hole;
D, spin locking bone screw 3, rotate its initial end from universal hole 4 to clearing end, locked after locking bone screw 3 turns to clearing end, just achieves locking and settle at one go.As guaranteed, blade plate body 1 is connected reliably with skeleton, can add screw at the clearing end in another universal hole 4, and bores the locating hole corresponding with the screw position that this is added on skeleton, then the screw added is inserted spin locking in this bottom outlet.
Certainly; above-mentioned explanation is not to restriction of the present utility model; this utility model is also not limited in above-mentioned citing, and the change that those skilled in the art make in the essential scope of this utility model type, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (6)
1. a universal lock bone-knitting device, it is characterized in that, include blade plate body (1), cardo ring (2) and locking bone screw (3), described blade plate body (1) is provided with one group of universal hole (4), described universal hole (4) is designed to heart, its inwall is concave spherical surface, and described universal hole (4) inwall is provided with a projection, the outer wall of described cardo ring (2) is set to the convex spherical suitable with the inwall of universal hole (4), described cardo ring (2) has opening, be installed in universal hole (4), described locking bone screw (3) is arranged in cardo ring (2), blade plate body (1) and skeleton are screwed, locking.
2. universal lock bone-knitting device according to claim 1, is characterized in that, described cardo ring (2) inside arranges straight thread or taper thread, suitable with the shape of locking bone screw (3).
3. universal lock bone-knitting device according to claim 1, is characterized in that, described cardo ring (2) is provided with the fillet of different radii, realizes the universal adjustment of locking bone screw (3).
4. the universal lock bone-knitting device according to claim 1,2 or 3, it is characterized in that, described locking bone screw (3) can adopt metal locking screw, also can adopt cortex nail or spongiosa nail, the structure of described cardo ring (2) and the form of locking bone screw (3) suitable.
5. universal lock bone-knitting device according to claim 1, is characterized in that, described blade plate body (1) is set to one end to be had and the strip treating the Special-Shaped Surface that the bone surface matching form of synthetism closes.
6. universal lock bone-knitting device according to claim 1, is characterized in that, the projection on described universal hole (4) inwall is set to semi-cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866338.5U CN205126390U (en) | 2015-11-03 | 2015-11-03 | Universal locking coaptation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866338.5U CN205126390U (en) | 2015-11-03 | 2015-11-03 | Universal locking coaptation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205126390U true CN205126390U (en) | 2016-04-06 |
Family
ID=55612218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866338.5U Active CN205126390U (en) | 2015-11-03 | 2015-11-03 | Universal locking coaptation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205126390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635033A (en) * | 2018-07-20 | 2018-10-12 | 河北医科大学第三医院 | A kind of inner fixing device for the preceding road treatment of Thoracolumbar disk |
-
2015
- 2015-11-03 CN CN201520866338.5U patent/CN205126390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108635033A (en) * | 2018-07-20 | 2018-10-12 | 河北医科大学第三医院 | A kind of inner fixing device for the preceding road treatment of Thoracolumbar disk |
| CN108635033B (en) * | 2018-07-20 | 2020-11-06 | 河北医科大学第三医院 | Internal fixing device for thoracolumbar anterior treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 9, Nanliu Street, Dawenkou Industrial Park, Daiyue District, Tai'an City, Shandong Province, 271000 Patentee after: Shandong Kangsheng Medical Device Co.,Ltd. Address before: 271000 north of Dawenkou gypsum Industrial Park, Tai'an City, Shandong Province Patentee before: SHANDONG KANGSHENG MEDICAL EQUIPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address |