CN203074840U - Medical patella fixing part - Google Patents
Medical patella fixing part Download PDFInfo
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- CN203074840U CN203074840U CN 201320023204 CN201320023204U CN203074840U CN 203074840 U CN203074840 U CN 203074840U CN 201320023204 CN201320023204 CN 201320023204 CN 201320023204 U CN201320023204 U CN 201320023204U CN 203074840 U CN203074840 U CN 203074840U
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- patella
- minor matters
- fixing
- fixing hole
- branchknot
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Abstract
The utility model discloses a medical patella fixing part, relates to surgical instruments and devices for setting a bone, and particularly relates to a patella fixing part for internal fixation of a patella fracture. A main body of the patella fixing part is a spider-shaped multi-branch branchknot-shaped plate, each branchknot includes at least two fixing holes which are matched with fastening parts, the fixing holes are distributed in all main branches and side branches, the inner hole diameter of each fixing hole is matched with each fastening part, every two adjacent fixing holes form an 8-shaped branchknot, and the width of joint portion of the branchknot is less than the outer diameter of each fixing hole, so that each branchknot can be bended and adjusted. The patella fixing part can be adjusted to form a mesh-shaped supporting face according to the physiological shape of a patella, the suitable fixing holes are selected according to positions of cracks of a comminuted fracture, each bone piece can be fixed, each articular surface is guaranteed to be effectively fixed, and fixation is firm and accurate and meets biomechanics requirements, a patient can take functional exercises in early time, and normal functions of a patella joint of the patient can be recovered to the maximum degree.
Description
Technical field
This utility model relates to a kind of surgical instruments, device that is used for synthetism, particularly a kind of patella fixture that is used for the internal fixation of Patella fracture.
Background technology
Patella is the sesamoid bone of whole body maximum, and huge effect is arranged in the knee joint physiological movement.The incidence rate of Patella fracture accounts for 1.65% of whole body fracture, sees with person between twenty and fifty more.At present along with the progress of society, the development of Modern Traffic, the actual generation of Patella fracture have surpassed report incidence rate, particularly high-octane comminuted fracture.
In the Patella fracture Therapeutic Method of displacement was arranged, the main fixing means that resets had: 1, patella periphery annulus prick 2, tensile screw and can absorb screw inner fixed law 3, NiTi memory alloy patella concentrator, 4, AO tension band ironwire suture.In many internal fixation methods of above-mentioned treatment Patella fracture pluses and minuses are arranged respectively.
It is that steel wire passes patella soft tissue on every side that patella periphery annulus is pricked shortcoming, can not obtain strong fixing, because the forward tension force of patella is increased, cause steel wire to cortical bone and tissue cutting, when taking exercise, can make steel wire lax again, displacement fracture, steel wire can't resist the shearing of fracture in addition, so postoperative must just can carry out the knee joint activity after 4～6 weeks by external fixation, brings influence for the recovery in joint, even reset satisfaction, the curative effect acceptance rate still is difficult to improve.
Tensile screw and can absorb the screw inner fixed law: be difficult for that antagonism knee joint flexing causes than macrobending power, so postoperative need be aided with certain external fixation.
The NiTi memory alloy patella concentrator: be not a kind of firm internal fixation, postoperative can not carry out functional exercise too early; Can not well be adjacent to the patella face and unsettled, get loose when causing joint motion and the hook that breaks; Can not play good fixation for the comminuted fracture patella fracture fixator, occur increasing the weight of the situation of displacement fracture even.
The AO tension band is sewed up: complicated operation, requirements of operation are difficult to keep fixing than higher to serious comminuted fracture, even increase the weight of the degree of grinding of fracturing in the art, also must pay special attention to the plane that Kirschner wire passes, as more near posterior articular facet the time, then can not play the effect of tension band.Root loop that the mistake that also often occurs in application is that Kirschner wire is long, the upper end is curvedly returned and knock in the bone, steel wire does not try one's best is around tightening or the like, or influence stretch bend movable, or steel wire slippage and failing.
China's utility model patent " be used for Patella fracture treatment inner fixer " (utility model patent number: ZL200320114822.X publication number: CN 2647254Y) disclose a kind of inner fixer that is used for the Patella fracture treatment, by extending the fastening structure that be bent to form and be positioned on the main body and be used for that holder and patella are installed with the installing hole that securing member together matches and constitute with retainer body, body rim that patella matches are local.Though this utility model is applicable to the fixing of smashing Patella fracture, but still has following shortcoming:
1, this utility model retainer body tabular or strip is not easy to patella and matches;
2, the local fastening structure that is bent to form that extends of the body rim of this utility model can not adapt to the patella size of Different Individual, the difference of shape, and versatility is poor.
The utility model content
The purpose of this utility model is to provide a kind of inner fixing device at comminuted patellar, can fix each articular surface effectively, and is fixed, accurate, meets the biomechanics requirement, helps to recover to greatest extent the normal function in patella joint.
This utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of medical patella fixture, the internal fixation that is used for Patella fracture, it is characterized in that the Aranea shape plate that the main body of described patella fixture is made up of the minor matters of multiple-limb, at least comprise two fixing holes that cooperate with securing member on described each minor matters, each all minor matters and fixing hole are formed can be according to the mesh-supported face of patella physiology shape adjustments.
A kind of preferable technical scheme of patella fixture of the present utility model is characterized in that described patella mount body is made up of the side shoot that connects into criss-cross four major branches and be distributed between each major branch; Described fixing hole is distributed on each major branch and the side shoot, and the internal orifice dimension of fixing hole cooperates with securing member; Per two adjacent fixing holes form the minor matters of one section figure of eight, the width at the continuous position of minor matters is less than the external diameter of fixing hole, form the weak section of described patella fixture, make the flexible adjustment of each minor matters, form the mesh-supported face that meets patella physiology shape.
A kind of better technical scheme of patella fixture of the present utility model, it is characterized in that the long 50～60mm of described patella mount body, wide 40～45mm, thick 0.8～1.2mm, the aperture of fixing hole is 4～6mm, the width of the connecting portion between adjacent two fixing holes of each minor matters is 2～4mm, and the angle degree of major branch and side shoot is 45 °.
The beneficial effects of the utility model are:
1. patella fixture of the present utility model adopts the multiple-limb minor matters shape plate of Aranea shape as main body, can form the mesh-supported face according to patella physiology shape adjustments, crack position according to comminuted fracture is selected suitable fixing hole, fix the broken bone of each piece, guarantee to fix each articular surface effectively, and fixed, accurate, meet the biomechanics requirement, make the patient carry out functional exercise in early days, recover the normal function in patella joint to greatest extent.
2. patella anchor structure of the present utility model is simple, and highly versatile is convenient to produce in batches, and cost is low, has very strong practicality and wide market application prospect.
Description of drawings
Fig. 1 is the structural representation of patella fixture of the present utility model;
Fig. 2 is the schematic perspective view of patella fixture of the present utility model.
The label of each parts among the above figure: 1-connects into criss-cross major branch, 2-side shoot, 3-fixing hole, the minor matters of the 4-figure of eight, the continuous position of 5-minor matters, the crooked adjusted minor matters of 6-.
The specific embodiment
In order to understand technique scheme of the present utility model better, describe in detail further below in conjunction with drawings and Examples.
An embodiment of patella fixture of the present utility model as depicted in figs. 1 and 2, the patella fixture is used for the internal fixation of Patella fracture, the Aranea shape plate that its main body is made up of the minor matters of multiple-limb, at least comprise two fixing holes that cooperate with securing member 3 on each minor matters 4, each all minor matters 4 are formed with fixing hole 3 can be according to the mesh-supported face of patella physiology shape adjustments.Described securing member is generally the trip bolt that is used to connect patella and patella fixture, not expression among the figure.
In the embodiment of patella fixture of the present utility model shown in Figure 1, described patella mount body is made up of four side shoots 2 that connect into criss-cross four major branches 1 and be distributed between each major branch 1; Fixing hole 3 is distributed on each major branch 1 and the side shoot 2, and the internal orifice dimension of fixing hole 3 cooperates with securing member; Per two adjacent fixing holes 3 form the minor matters 4 of one section figure of eight, the width at the continuous position 5 of minor matters 4 is less than the external diameter of fixing hole 3, form the weak section of described patella fixture, make each minor matters 4 flexible adjustment, in the axonometric chart of patella fixture of the present utility model shown in Figure 2, the adjusted minor matters 6 of bending have been showed as example, patella fixture of the present utility model adopts the multiple-limb minor matters shape plate of Aranea shape, each minor matters can crookedly be adjusted, thereby forms the mesh-supported face that meets patella physiology shape.
A kind of embodiment according to patella fixture of the present utility model, long 50～the 60mm of patella mount body, wide 40～45mm, use is made the human body titanium alloy steel plate that has no side effect, thick 0.8～1.2mm, the aperture of fixing hole 3 is 4～6mm, adapts with the trip bolt diameter that is used to be connected patella and patella fixture; The width of the connecting portion 5 between adjacent two fixing holes 3 of each minor matters 4 is 2～4mm, and the angle degree of major branch and side shoot is 45 °.
Use the fracture fixation operation process of patella fixture of the present utility model as follows:
1. open reduction: patella (comminuted) fracture open reduction, temporary fixed with towel forceps.
2. adjust the patella fixture: press each minor matters of physiology and appearance bending patella fixture of patella, the patella fixture is placed on the surface of patella, adjust.
3. fixing: the crack position according to comminuted fracture is selected suitable fixing hole, the drill bit punching, and the depth finder depth measurement uses suitable screw that the patella fixture is connected to the surface of patella according to the degree of depth, and screw length can not surpass the posterior articular facet of patella.
4. finish: behind the screwing, the activity knee joint, patella does not separate displacement, sews up the incision, and operation finishes.
Those of ordinary skill in the art will be appreciated that; above embodiment is used for illustrating the technical solution of the utility model; and be not to be used as qualification of the present utility model; any based on connotation of the present utility model to variation, modification that the above embodiment did, all will drop in the protection domain of claim of the present utility model.
Claims (3)
1. medical patella fixture, the internal fixation that is used for Patella fracture, it is characterized in that the Aranea shape plate that the main body of described patella fixture is made up of the minor matters of multiple-limb, at least comprise two fixing holes that cooperate with securing member on described each minor matters, each all minor matters and fixing hole are formed can be according to the mesh-supported face of patella physiology shape adjustments.
2. patella fixture according to claim 1 is characterized in that described patella mount body is made up of the side shoot that connects into criss-cross four major branches and be distributed between each major branch; Described fixing hole is distributed on each major branch and the side shoot, and the internal orifice dimension of fixing hole cooperates with securing member; Per two adjacent fixing holes form the minor matters of one section figure of eight, the width at the continuous position of minor matters is less than the external diameter of fixing hole, form the weak section of described patella fixture, make the flexible adjustment of each minor matters, form the mesh-supported face that meets patella physiology shape.
3. patella fixture according to claim 1 and 2, it is characterized in that the long 50～60mm of described patella mount body, wide 40～45mm, thick 0.8～1.2mm, the aperture of fixing hole is 4～6mm, the width of the connecting portion between adjacent two fixing holes of each minor matters is 2～4mm, and the angle degree of major branch and side shoot is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023204 CN203074840U (en) | 2013-01-16 | 2013-01-16 | Medical patella fixing part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320023204 CN203074840U (en) | 2013-01-16 | 2013-01-16 | Medical patella fixing part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203074840U true CN203074840U (en) | 2013-07-24 |
Family
ID=48820729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320023204 Expired - Fee Related CN203074840U (en) | 2013-01-16 | 2013-01-16 | Medical patella fixing part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203074840U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2537215C1 (en) * | 2013-11-28 | 2014-12-27 | Государственное бюджетное образовательное учреждение дополнительного профессионального образования "Новокузнецкий государственный институт усовершенствования врачей" Министерства здравоохранения Российской Федерации | Osteosynthesis device for fractures of lower pole of patellas |
| CN104921797A (en) * | 2015-06-29 | 2015-09-23 | 北京贝思达生物技术有限公司 | Anatomic metal bone fracture plate |
| WO2017041091A1 (en) * | 2015-09-04 | 2017-03-09 | DePuy Synthes Products, Inc. | Patella bone plate |
| CN111529034A (en) * | 2020-05-20 | 2020-08-14 | 重庆市中医院 | Internal fixing device for patellar lower-pole fracture and screw fixing method |
| CN111616786A (en) * | 2020-04-19 | 2020-09-04 | 高航飞 | Bone-knitting device for patellar fracture |
| US10765462B2 (en) | 2018-09-11 | 2020-09-08 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| CN112704554A (en) * | 2021-01-25 | 2021-04-27 | 山东建筑大学 | Preparation method of degradable porous spider-shaped bone fracture device |
-
2013
- 2013-01-16 CN CN 201320023204 patent/CN203074840U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2537215C1 (en) * | 2013-11-28 | 2014-12-27 | Государственное бюджетное образовательное учреждение дополнительного профессионального образования "Новокузнецкий государственный институт усовершенствования врачей" Министерства здравоохранения Российской Федерации | Osteosynthesis device for fractures of lower pole of patellas |
| CN104921797A (en) * | 2015-06-29 | 2015-09-23 | 北京贝思达生物技术有限公司 | Anatomic metal bone fracture plate |
| WO2017041091A1 (en) * | 2015-09-04 | 2017-03-09 | DePuy Synthes Products, Inc. | Patella bone plate |
| US10905478B2 (en) | 2015-09-04 | 2021-02-02 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| US11690658B2 (en) | 2015-09-04 | 2023-07-04 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| US10765462B2 (en) | 2018-09-11 | 2020-09-08 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| US11413078B2 (en) | 2018-09-11 | 2022-08-16 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| US11660132B2 (en) | 2018-09-11 | 2023-05-30 | DePuy Synthes Products, Inc. | Patella bone plate and methods of fixation |
| CN111616786A (en) * | 2020-04-19 | 2020-09-04 | 高航飞 | Bone-knitting device for patellar fracture |
| CN111529034A (en) * | 2020-05-20 | 2020-08-14 | 重庆市中医院 | Internal fixing device for patellar lower-pole fracture and screw fixing method |
| CN112704554A (en) * | 2021-01-25 | 2021-04-27 | 山东建筑大学 | Preparation method of degradable porous spider-shaped bone fracture device |
| CN112704554B (en) * | 2021-01-25 | 2022-06-24 | 山东建筑大学 | Preparation method of degradable porous spider-shaped bone connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20160116 |
|
| EXPY | Termination of patent right or utility model |