CN103385752A - Universal ring for locked bone fracture plate - Google Patents
Universal ring for locked bone fracture plate Download PDFInfo
- Publication number
- CN103385752A CN103385752A CN2013102967378A CN201310296737A CN103385752A CN 103385752 A CN103385752 A CN 103385752A CN 2013102967378 A CN2013102967378 A CN 2013102967378A CN 201310296737 A CN201310296737 A CN 201310296737A CN 103385752 A CN103385752 A CN 103385752A
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- CN
- China
- Prior art keywords
- ring body
- cardo ring
- bone fracture
- fracture plate
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a universal ring for a locked bone fracture plate. The universal ring comprises a universal ring body which is circular and is provided with an annular opening; the outer peripheral surface of the universal ring body is in a spherical surface shape which is matched with a spherical-surface-shaped locking hole in the locked bone fracture plate; a plurality of opening grooves are uniformly formed in the annular opening on one side of the universal ring body; the inner wall of the universal ring body is provided with an inner thread which can be in threaded match with an outer thread of a locking nail; when the annular opening of the universal ring body is inwards folded under the effect of an external force, the universal ring body can be rightly placed into the spherical-surface-shaped locking hole in the locked bone fracture plate; and after the external force is removed, the universal ring body is outwards unfolded under the effect of the tension, so that the universal ring body is rightly and movably matched and locked with the spherical-surface-shaped locking hole in the locked bone fracture plate through the outer peripheral surface which is in the spherical surface shape. The universal ring for locking the locked bone fracture plate disclosed by the invention has the advantages that the structure is simple; and a nail screwing-in direction of the locking nail can be changed and the locking effects of the locking nail and the locked bone fracture plate are not influenced.
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 fracture repair operation, the locking of locking bone fracture plate is that on external screw thread and locking bone fracture plate by locking head of a nail head place, the female thread of lock hole carries out threaded engagement and locks.Due to the female thread direction of lock hole on locking bone fracture plate be locking nail advance to follow closely direction, and the female thread of locking nail is for maintaining static, this just make locking nail to advance to follow closely direction single, the clinician does not in use have selectivity, the female thread direction of locking nail lock hole on locking bone fracture plate can only be advanced nail, but when fracture when irregular, thisly advance to follow closely the single locking bone fracture plate of direction and just can not satisfy the demands, application limitation is large.
Summary of the invention
The purpose of this invention is to provide a kind of wide accommodation, can change locking nail and advance to follow closely the cardo ring that is used for locking bone fracture plate of direction.
for achieving the above object, the present invention has adopted following technical scheme: 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, evenly offer some open slots on a side ring mouth of cardo ring body, be provided with on the inwall of cardo ring body and can carry out with the external screw thread of locking nail the female thread of threaded engagement, the cardo ring body has the trend that keeps initial ring openings of sizes all the time under the effect of self tension force, when the cardo ring body makes its ring opening inward collapsible closed under external force, the cardo ring body just in time can be put into the spheric lock hole of locking bone fracture plate, after removing external force, the cardo ring body outwards opens under the effect of himself tension force, just in time make the cardo ring body be the outer circumference surface of spherical shape and the locking of the spheric lock hole clearance fit on locking bone fracture plate by it.
Further, aforesaid cardo ring for locking bone fracture plate, wherein: be provided with thread groove on the outer circumference surface of cardo ring body, guarantee when frictional force between cardo ring body and spheric lock hole is advanced to follow closely greater than locking nail all the time and the frictional force between the cardo ring body.
Further, 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 °.
Enforcement by technique scheme the invention has the beneficial effects as follows: simple in structure, what can change locking nail advances 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.
Description of 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 that is used for locking bone fracture plate shown in Fig. 1.
Fig. 4 is the cardo ring that is used for locking bone fracture plate shown in Fig. 1 and the installation diagram of locking bone fracture plate.
Fig. 5 is the structural representation of A-A section in Fig. 4.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 3, Fig. 4, shown in Figure 5 as shown in Figure 1, Figure 2,, 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, evenly offer some open slots 4 on a side ring mouth of cardo ring body 1, be provided with on the inwall of cardo ring body 1 and can carry out with the external screw thread of locking nail the female thread 5 of threaded engagement; When cardo ring body 1 made 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; All the time has the trend that keeps initial ring openings of sizes under self outside tension force effect due to cardo ring body 1, after removing external force, cardo ring body 1 outwards opens under the effect of himself tension force, just in time make cardo ring body 1 be outer circumference surface and the 3 clearance fit lockings of the spheric lock hole on locking bone fracture plate 2 of spherical shape by it; In the present embodiment, be provided with thread groove 6 on the outer circumference surface of cardo ring body 1, increased like this frictional force between cardo ring body 1 and spheric lock hole 3, guarantee when frictional force between cardo ring body 1 and spheric lock hole 3 is advanced to follow closely greater than locking nail all the time and the frictional force between cardo ring body 1, avoided cardo ring body 1 to skid in the process that locking nail advances to follow closely, guaranteed the functional of cardo ring body 1, increased 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 °, improved widely the range of application of cardo ring of the present invention, thereby increased the set direction of locking nail when advancing to follow closely, more more options are provided while for the doctor, performing the operation.When actual installation, cardo ring of the present invention is to regulate Wrench by the antagonism supporting with it to be used in conjunction with, and antagonism is regulated Wrench and connected cardo ring by the open slot on cardo ring, thereby to cardo ring, needs the angle of deflection to adjust.
Claims (3)
1. be used 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, evenly offer some open slots on a side ring mouth of cardo ring body, be provided with on the inwall of cardo ring body and can carry out with the external screw thread of locking nail the female thread of threaded engagement, the cardo ring body has the trend that keeps initial ring openings of sizes all the time under the effect of self tension force; When the cardo ring body makes its ring opening inward collapsible closed under external force, the cardo ring body just in time can be put into the spheric lock hole of locking bone fracture plate, after removing external force, the cardo ring body outwards opens under the effect of himself tension force, just in time make the cardo ring body be the outer circumference surface of spherical shape and the locking of the spheric lock hole clearance fit on locking bone fracture plate by it.
2. the cardo ring for locking bone fracture plate according to claim 1, it is characterized in that: be provided with thread groove on the outer circumference surface of cardo ring body, guarantee when frictional force between cardo ring body and spheric lock hole is advanced to follow closely greater than locking nail all the time and the frictional force between the cardo ring body.
3. the cardo ring for locking bone fracture plate according to claim 1 and 2, it 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 true CN103385752A (en) | 2013-11-13 |
| CN103385752B CN103385752B (en) | 2016-05-11 |
Family
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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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814783A (en) * | 2015-04-23 | 2015-08-05 | 济南大学 | Locking pressurized bone fracture 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
| WO2006102110A1 (en) * | 2005-03-17 | 2006-09-28 | Smith & Nephew, Inc. | Screw head adapter for bone plate |
| US20080114359A1 (en) * | 2006-11-09 | 2008-05-15 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
| US20080243192A1 (en) * | 2007-03-27 | 2008-10-02 | Depuy Spine, Inc. | Passive Screw Locking Mechanism |
| 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 |
-
2013
- 2013-07-16 CN CN201310296737.8A patent/CN103385752B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235033B1 (en) * | 2000-04-19 | 2001-05-22 | Synthes (Usa) | Bone fixation assembly |
| WO2006102110A1 (en) * | 2005-03-17 | 2006-09-28 | Smith & Nephew, Inc. | Screw head adapter for bone plate |
| US20080114359A1 (en) * | 2006-11-09 | 2008-05-15 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
| US20080243192A1 (en) * | 2007-03-27 | 2008-10-02 | Depuy Spine, Inc. | Passive Screw Locking Mechanism |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814783A (en) * | 2015-04-23 | 2015-08-05 | 济南大学 | Locking pressurized bone fracture 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103385752B (en) | 2016-05-11 |
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| C14 | Grant of patent or utility model | ||
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