CN205234703U - Miniature thighbone condyle surface replacement prosthesis - Google Patents
Miniature thighbone condyle surface replacement prosthesis Download PDFInfo
- Publication number
- CN205234703U CN205234703U CN201521105712.6U CN201521105712U CN205234703U CN 205234703 U CN205234703 U CN 205234703U CN 201521105712 U CN201521105712 U CN 201521105712U CN 205234703 U CN205234703 U CN 205234703U
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- China
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- nail
- main nail
- miniature
- replacement prosthesis
- head
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Abstract
The utility model discloses a miniature thighbone condyle surface replacement prosthesis, including low nut and the main nail of playing, main nail terminally be six positive prisms, low bullet nut constitute by the cylinder and the head of a nail, the cylinder in be with the hollow structure of positive six prismatic matchings, the head of a nail be regular hexagon, be provided with on the head of a nail and arrange even aperture, low bullet nut set connect in main nail terminally. With low costs, the low price of this surface replacement prosthesis, easy operation, the treatment wound is little, can delay joint disease's process effectively, makes the patient avoid too early knee total joint replacement surgery.
Description
Technical field
The utility model belongs to technical field of medical instruments, is specifically related to a kind of miniature condyle of femur tableFace replacement prosthesis.
Background technology
The articular cartilage face being caused by wound, osteochondritis dissecans and joint degeneration etc. is local completeBreak damage and degeneration necrosis are comparatively common. Because articular cartilage supplies without blood vessel, nerve and lymph liquidGive, just make the healing ability of cartilage very weak, therefore for how to repair, cartilage surface is damaged to be causedBone and joint diseases be the difficulties of doctor's scholar research always. There are clinically many methods to repairAnswer and rebuild articular cartilage, but all having many limitation: Drilling, cartilage mill under cartilageCut etc. and can only impel fiber or fibrocartilaginous formation, the articular surface that can not recover damaged withAnd stop the further regression of cartilage surface, and curative effect in gerontal patient is poor; Autologous cartilageTransplanting source is limited is restricted its application, and the immune response of allogeneic is still transplanting skillA difficult problem in art; Biomaterial, periosteum and perichondrium are transplanted and cell factor or gene treatmentMethods etc. have obtained challenging laboratory data, but have many unpredictable clinical knotsReally. Although cartilage tissue engineered technical development is rapid, research application constantly expands,Still there are many problems urgently to be resolved hurrily, as the cartilaginous tissue forming was easily degenerated in the later stage; PolymerizationThing support implants and can cause inflammatory reaction in various degree; The cartilaginous tissue mechanical property formingThe problem such as can not too be satisfied with. Joint replacement seems again premature for above-mentioned patient, andJoint prosthesis is repeatedly overhauled and complication will be followed for a long time. So, for these middle aged patients,Surgeon needs a kind of interim or alternative therapeutic strategy to maintain patient 10 years or even 10Normal function of joint more than year, thereby the time of postponement joint replacement
Therefore, single condyle or total knee arthroplasty will become the final selection of many middle aged patientsTherapeutic scheme. The application is for the old and middle-aged patients of suffering from the damage of cartilage holostrome, and design is a kind ofMicro-transplanting prosthese, provides a kind of interim or alternative therapeutic strategy to postpone joint to put for clinicalChange, maintain the function of joint of longer time.
Utility model content
The defect that the utility model exists for prior art, object is to provide one to pass throughMicro-operation combines micro-transplanting table of installing and can repairing large area articular cartilage defect under mirrorFace replacement prosthesis, crosses the reparation to damage cartilage, can improve better the interior environment in joint,And mechanical environment, effectively delay the process of joint disease, make more patient avoid too earlyReplacement knee in arthroplasty, alleviates the economy of state's family and home and patient's mental burden.
The utility model is specifically achieved through the following technical solutions:
A kind of miniature condyle of femur surface replacement prosthesis, comprises low bullet nut and main nail, described masterNail end is positive six prisms, and described low bullet nut is made up of cylinder and the head of a nail, described cylinderInterior is the hollow structure mating with positive six prisms, and the described head of a nail is regular hexagon, on the head of a nail, establishesBe equipped with aperture arranged in a uniform, described low bullet spiro cap is connected to main nail end.
Described main nail central authorities are provided with a circular hole, and the described circular hole degree of depth is less than the length of main nailDegree.
On described main nail wall, be furnished with some micropores, the circle arranging in described micropore and main nailHole is communicated with.
Described main nail from tip to end direction be arc, and main nail middle part diameter is greater than tipAnd end diameter, most advanced and sophisticated diameter is less than end diameter.
The beneficial effects of the utility model are: the miniature condyle of femur surface replacement prosthesis of the utility modelTreatment wound is little, and with respect to other the full transfer operation methods for the treatment of of vacation, cost is low, valencyLattice are cheap, easy and simple to handle, and dependable performance can be used alone simultaneously, also can prosthese and prosthese itBetween the mutual surface replacement prosthesis of combination. This methods for the treatment of has relieve patient ' s burden, increases skillThe advantage of the aspects such as art income, raising result for the treatment of, thereby have great society generalization and answerBy value.
Brief description of the drawings
Fig. 1 is the structural representation of the miniature condyle of femur surface replacement prosthesis of the utility model;
Fig. 2 is the structural representation of the main nail of the utility model;
Fig. 3 is the structural representation of the low bullet nut of the utility model.
In accompanying drawing, indicate explanation: 1 low bullet nut, 2 main nails, 11 cylinders, 12 heads of a nail, 21Positive six prisms.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments to the miniature condyle of femur surface replacement of the utility modelProsthese is further explained explanation.
As shown in Figure 1, a kind of miniature condyle of femur surface replacement prosthesis, comprises low bullet nut 1 HeMain nail 2, low bullet nut 1 is socketed on main nail 2 ends.
As shown in Figure 2, main nail 2 ends are positive six prisms 21, and main nail 2 central authorities are provided with oneCircular hole, the circular hole degree of depth is less than the length of main nail 2, on main nail 2 walls, is furnished with some micropores, micro-The circular hole that Kong Yuzhu follows closely 2 interior settings is communicated with, and can after main nail is fixing, inject bone cement, bone cementSee through micropore and ooze out around nail wall, strengthen sufferers of osteoporosis face frictional force, fixing safer.Main nail 2 from tip to end direction be arc, and main nail middle part diameter is greater than most advanced and sophisticated and end is straightFootpath, most advanced and sophisticated diameter is less than end diameter, for osteoporotic patient, can increase withdrawal forceDegree.
As shown in Figure 3, low bullet nut 1 is made up of cylinder 11 and the head of a nail 12, in cylinder 11For the hollow structure mating with positive six prisms 21, the head of a nail 12 is regular hexagon, on the head of a nail 12Be provided with aperture arranged in a uniform, after fixing with main nail 2, can be by bone in the marrow of condyle of femur deepMarrow stem cell (MSCs) is controlled indwelling, to promote the fibrocartilage growth at cartilage defect place.
This miniature condyle of femur surface replacement prosthesis in use, is first measured articular surface curvature,Determine into nail angle according to curvature, then main nail 2 was passed through to universal solution cutter and fix, adjustHexagonal direction, then fixes low bullet nut 1, and the head of a nail 12 is concordant with cartilage surface, manyIndividual continuous measurement curvature when fixing, fixes after one piece of main nail 2, wouldn't fix low bullet nut 1,Measure two head of a nail 12 spacing, fix second piece of main nail 2 according to spacing and cartilage defect position,Fix the 3rd piece with method, until cover damaged cartilage completely.
The above embodiment further illustrates of the present utility model, not to this practicalityNovelly do other forms of restriction, the utility model also can have other various embodiments, is not carrying on the backIn the situation of the utility model spirit and essence thereof, those of ordinary skill in the art can basisThe utility model is made various corresponding changes and distortion, but these corresponding changes and distortion are allShould belong to the protection domain of the utility model claim.
Claims (4)
1. a miniature condyle of femur surface replacement prosthesis, is characterized in that: comprise low bullet nut(1) and main nail (2), described main nail (2) end is positive six prisms (21), describedLow bullet nut (1) is made up of cylinder (11) and the head of a nail (12), described cylinder (11)Interior is the hollow structure mating with positive six prisms (21), and the described head of a nail (12) is positive hexagonShape, the head of a nail is provided with aperture arranged in a uniform on (12), described low bullet nut (1) coverBe connected to main nail (2) end.
2. the miniature condyle of femur surface replacement prosthesis of one according to claim 1, its spyLevy and be: described main nail (2) central authorities are provided with a circular hole, and the described circular hole degree of depth is less thanThe length of main nail (2).
3. the miniature condyle of femur surface replacement prosthesis of one according to claim 1, its spyLevy and be: on described main nail (2) wall, be furnished with some micropores, described micropore and main nail(2) circular hole arranging in is communicated with.
4. the miniature condyle of femur surface replacement prosthesis of one according to claim 1, its spyLevy and be: described main nail (2) from tip to end direction be arc, and in main nail (2)Portion's diameter is greater than tip and end diameter, and most advanced and sophisticated diameter is less than end diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105712.6U CN205234703U (en) | 2015-12-28 | 2015-12-28 | Miniature thighbone condyle surface replacement prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521105712.6U CN205234703U (en) | 2015-12-28 | 2015-12-28 | Miniature thighbone condyle surface replacement prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205234703U true CN205234703U (en) | 2016-05-18 |
Family
ID=55933791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521105712.6U Expired - Fee Related CN205234703U (en) | 2015-12-28 | 2015-12-28 | Miniature thighbone condyle surface replacement prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205234703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773570A (en) * | 2021-02-01 | 2021-05-11 | 浙江省中医院、浙江中医药大学附属第一医院（浙江省东方医院） | Regional replacement prosthesis |
| CN113349991A (en) * | 2021-06-21 | 2021-09-07 | 北京力达康科技有限公司 | Knee joint condyle surface repairing nail and implanting method thereof |
-
2015
- 2015-12-28 CN CN201521105712.6U patent/CN205234703U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112773570A (en) * | 2021-02-01 | 2021-05-11 | 浙江省中医院、浙江中医药大学附属第一医院（浙江省东方医院） | Regional replacement prosthesis |
| CN113349991A (en) * | 2021-06-21 | 2021-09-07 | 北京力达康科技有限公司 | Knee joint condyle surface repairing nail and implanting method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161228 |