CN103385752B - For the cardo ring of locking bone fracture plate - Google Patents
For the cardo ring of locking bone fracture plate Download PDFInfo
- Publication number
- CN103385752B CN103385752B CN201310296737.8A CN201310296737A CN103385752B CN 103385752 B CN103385752 B CN 103385752B CN 201310296737 A CN201310296737 A CN 201310296737A CN 103385752 B CN103385752 B CN 103385752B
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- CN
- China
- Prior art keywords
- ring body
- cardo ring
- cardo
- bone fracture
- fracture plate
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Abstract
The invention discloses the cardo ring for locking bone fracture plate, comprise the cardo ring body that is annular and offers a ring opening, the outer circumference surface of cardo ring body is the spherical shape that can match with the spheric lock hole on locking bone fracture plate, on a side ring mouth of cardo ring body, evenly offer some open slots, on the inwall of cardo ring body, be provided with the internal thread that can carry out with the external screw thread of locking nail threaded engagement; In the time that cardo ring body makes its ring opening inward collapsible under external force, cardo ring body just in time can be put into the spheric lock hole of locking bone fracture plate, when removing after external force, cardo ring body outwards opens under the effect of himself tension force, and the spheric lock hole activity that just in time makes cardo ring body be on outer circumference surface and the locking bone fracture plate of spherical shape by it locks. The present invention has simple in structure, and what can change locking nail enters to follow closely direction, does not affect again the advantage of the locking effect of locking nail and locking bone fracture plate.
Description
Technical field
The present invention relates to medical instruments field, be specifically related to the cardo ring for locking bone fracture plate.
Background technology
At present, in repair of fractured bones operation, the locking of locking bone fracture plate is to carry out threaded engagement locking by the internal thread of lock hole on the external screw thread at locking head of a nail head place and locking bone fracture plate. Due to the internal thread direction of lock hole on locking bone fracture plate be locking nail enter to follow closely direction, and the internal thread of locking nail is for maintaining static, this just make locking nail to enter to follow closely direction single, clinician is in use not selective, the internal thread direction of locking nail lock hole on locking bone fracture plate can only be entered to nail, but when fracture is when irregular, thisly enter to follow closely the locking bone fracture plate that direction is single and just can not satisfy the demands, application limitation is large.
Summary of the invention
The object of this invention is to provide a kind of wide accommodation, can change locking nail and enter to follow closely the cardo ring for locking bone fracture plate of direction.
For achieving the above object, the present invention has adopted following technical scheme: the described cardo ring for locking bone fracture plate, comprise and be annular, and offer the cardo ring body of a ring opening, the outer circumference surface of cardo ring body is the spherical shape that can match with the spheric lock hole on locking bone fracture plate, on a side ring mouth of cardo ring body, evenly offer some open slots, on the inwall of cardo ring body, be provided with the internal thread that can carry out with the external screw thread of locking nail threaded engagement, cardo ring body has all the time the trend that keeps initial ring openings of sizes under the effect of self tension force, in the time that cardo ring body makes its ring opening inward collapsible closed under external force, cardo ring body just in time can be put into the spheric lock hole of locking bone fracture plate, when removing after external force, cardo ring body outwards opens under the effect of himself tension force, and the spheric lock hole activity that just in time makes cardo ring body be on outer circumference surface and the locking bone fracture plate of spherical shape by it locks.
Further, the aforesaid cardo ring for locking bone fracture plate, wherein: on the outer circumference surface of cardo ring body, be provided with thread groove, guarantee frictional force when frictional force between cardo ring body and spheric lock hole is greater than all the time locking nail and enters to follow closely and between cardo ring body.
Further, the aforesaid cardo ring for locking bone fracture plate, wherein: the angular range that the axial line of described cardo ring body can depart from the axial line of spheric lock hole is 0-5 °.
By the enforcement of technique scheme, the invention has the beneficial effects as follows: simple in structure, what can change locking nail enters to follow closely direction, does not affect again the locking effect of locking nail and locking bone fracture plate, has increased the range of application of product.
Brief description of the drawings
Fig. 1 is the structural representation of the cardo ring for locking bone fracture plate of the present invention.
Fig. 2 is the structural representation of the A-A section of Fig. 1.
Fig. 3 is the perspective view of the cardo ring for locking bone fracture plate shown in Fig. 1.
Fig. 4 be shown in Fig. 1 for the cardo ring of locking bone fracture plate and the installation diagram of locking bone fracture plate.
Fig. 5 is the structural representation of A-A section in Fig. 4.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the described cardo ring for locking bone fracture plate, comprise the cardo ring body 1 that is annular and offers a ring opening, the outer circumference surface of cardo ring body 1 is the spherical shape that can match with the spheric lock hole 3 on locking bone fracture plate 2, on a side ring mouth of cardo ring body 1, evenly offer some open slots 4, on the inwall of cardo ring body 1, be provided with the internal thread 5 that can carry out with the external screw thread of locking nail threaded engagement; In the time that cardo ring body 1 makes its ring opening inward collapsible closed under external force, cardo ring body 1 just in time can be put into the spheric lock hole 3 of locking bone fracture plate 2; Because cardo ring body 1 has all the time the trend that keeps initial ring openings of sizes under self outside tension force effect, when removing after external force, cardo ring body 1 outwards opens under the effect of himself tension force, and spheric lock hole 3 activities that just in time make cardo ring body 1 be on outer circumference surface and the locking bone fracture plate 2 of spherical shape by it lock; In the present embodiment, on the outer circumference surface of cardo ring body 1, be provided with thread groove 6, increase like this frictional force between cardo ring body 1 and spheric lock hole 3, guarantee frictional force when frictional force between cardo ring body 1 and spheric lock hole 3 is greater than all the time locking nail and enters to follow closely and between cardo ring body 1, in the process of having avoided cardo ring body 1 to enter to follow closely at locking nail, skid, ensure the functional of cardo ring body 1, increase cardo ring stability in use, improve operation efficiency, shortened operating time; In the present embodiment, the angular range that the axial line of described cardo ring body 1 can depart from the axial line of spheric lock hole 3 is 0-5 °, improve widely the range of application of cardo ring of the present invention, thereby increase the set direction of locking nail in the time entering to follow closely, more more options are provided while operation for doctor. In the time of actual installation, cardo ring of the present invention is to regulate Wrench to be used in conjunction with by the antagonism supporting with it, and antagonism regulates Wrench to connect cardo ring by the open slot on cardo ring, thereby needs the angle of deflection to adjust to cardo ring.
Claims (2)
1. for the cardo ring of locking bone fracture plate, it is characterized in that: comprise the cardo ring body that is annular and offers a ring opening, the outer circumference surface of cardo ring body is the spherical shape that can match with the spheric lock hole on locking bone fracture plate, on a side ring mouth of cardo ring body, evenly offer some open slots, on the inwall of cardo ring body, be provided with the internal thread that can carry out with the external screw thread of locking nail threaded engagement, cardo ring body has all the time the trend that keeps initial ring openings of sizes under the effect of self tension force, in the time that cardo ring body makes its ring opening inward collapsible closed under external force, cardo ring body just in time can be put into the spheric lock hole of locking bone fracture plate, when removing after external force, cardo ring body outwards opens under the effect of himself tension force, the spheric lock hole activity that just in time makes cardo ring body be on outer circumference surface and the locking bone fracture plate of spherical shape by it locks, on the outer circumference surface of cardo ring body, be provided with thread groove, guarantee frictional force when frictional force between cardo ring body and spheric lock hole is greater than all the time locking nail and enters to follow closely and between cardo ring body.
2. the cardo ring for locking bone fracture plate according to claim 1, is characterized in that: the angular range that the axial line of described cardo ring body can depart from the axial line of spheric lock hole is 0-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310296737.8A CN103385752B (en) | 2013-07-16 | 2013-07-16 | For the cardo ring of locking bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310296737.8A CN103385752B (en) | 2013-07-16 | 2013-07-16 | For the cardo ring of locking bone fracture plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103385752A CN103385752A (en) | 2013-11-13 |
| CN103385752B true CN103385752B (en) | 2016-05-11 |
Family
ID=49530290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310296737.8A Active CN103385752B (en) | 2013-07-16 | 2013-07-16 | For the cardo ring of locking bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103385752B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814783B (en) * | 2015-04-23 | 2018-02-27 | 济南大学 | Locked pressurized bone plate |
| CN105213004A (en) * | 2015-10-15 | 2016-01-06 | 浙江嘉佑医疗器械有限公司 | Self-locking integral type anterior cervical plates |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
| CN201263715Y (en) * | 2008-09-05 | 2009-07-01 | 镱钛科技股份有限公司 | Multiple-shaft locking fixator |
| CN201912216U (en) * | 2010-12-28 | 2011-08-03 | 北京国人骨科医疗器械有限公司 | Self-adaptive locking bone fracture plate |
| CN203418256U (en) * | 2013-05-30 | 2014-02-05 | 无锡市阳通机械设备有限公司 | Centering, clamping and assembling integrated mechanism for H-type steel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006102110A1 (en) * | 2005-03-17 | 2006-09-28 | Smith & Nephew, Inc. | Screw head adapter for bone plate |
| US8287575B2 (en) * | 2006-11-09 | 2012-10-16 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
| US8702762B2 (en) * | 2007-03-27 | 2014-04-22 | Depuy Spine, Inc. | Passive screw locking mechanism |
-
2013
- 2013-07-16 CN CN201310296737.8A patent/CN103385752B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
| CN201263715Y (en) * | 2008-09-05 | 2009-07-01 | 镱钛科技股份有限公司 | Multiple-shaft locking fixator |
| CN201912216U (en) * | 2010-12-28 | 2011-08-03 | 北京国人骨科医疗器械有限公司 | Self-adaptive locking bone fracture plate |
| CN203418256U (en) * | 2013-05-30 | 2014-02-05 | 无锡市阳通机械设备有限公司 | Centering, clamping and assembling integrated mechanism for H-type steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103385752A (en) | 2013-11-13 |
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