CN107802381A - Knee-joint prosthesis - Google Patents
Knee-joint prosthesis Download PDFInfo
- Publication number
- CN107802381A CN107802381A CN201710970293.XA CN201710970293A CN107802381A CN 107802381 A CN107802381 A CN 107802381A CN 201710970293 A CN201710970293 A CN 201710970293A CN 107802381 A CN107802381 A CN 107802381A
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- China
- Prior art keywords
- condyle
- femur
- face
- joint
- knee
- 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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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/3859—Femoral components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention provides a kind of knee-joint prosthesis,Including the condyle of femur being mounted on patient femur and the shin bone pad coordinated with condyle of femur,Condyle of femur includes a pair spaced entocondyles and external condyle,Shin bone pad has base portion and the depressed part at two intervals formed that are recessed downwards by base portion,Condyle of femur has femoral joint face,Shin bone pad has the tibial prosthesis face coordinated with femoral joint face,The femoral joint face has identical radius of curvature on coronal-plane,The tibial prosthesis face is to be made up of the first bearing surface of two different curvature radius with the second bearing surface on coronal-plane,First bearing surface and the matching degree in femoral joint face are higher than the second bearing surface and the matching degree in femoral joint face,With convenient knee-joint prosthesis during the curvature movement in turn up motion,It is natural to recover joint,Proper motion,The problem of can avoiding producing unbalance stress because of the intra-articular limitation of activity that turns up and aggravating knee-joint prosthesis abrasion simultaneously.
Description
【Technical field】
The present invention relates to orthopedic medical device technical field, more particularly to one kind to be used to substitute damaged joints face, recover to close
Save the knee-joint prosthesis of proper motion.
【Technical background】
Joint replacement is that the joint manually manufactured replaces pain and a kind of forfeiture the of function of joint treats joint disease
Method.It is generally used for replacement damaged joints face in total knee arthroplasty to set including group to recover the knee-joint prosthesis of joint motions
In the condyle of femur on femur, the tibial prosthesis being mounted on shin bone and the shin bone pad between condyle of femur and tibial prosthesis.
Condyle of femur include a pair spaced entocondyles with external condyle, be connected the femur cunning of entocondyle and external condyle front end
Car and connection entocondyle and the cam of upper end after external condyle.Condyle of femur also has passage corresponding with the fossa intercondyloidea of femur, uses
Pass through in for posterior cruciate ligament of knee.Passage is enclosed to set by entocondyle, external condyle, cam and femoral bone pulley lower end to be formed.Condyle of femur has
There is the femoral joint face coordinated with shin bone pad.Femoral joint face has identical radius of curvature on coronal-plane.
Together with shin bone pad is located at by grafting snap close mode with tibial prosthesis fixation group, it has disc shaped base, by base portion
Depression is formed downwards two spaced dented spaces and position is extended positioned at two dented spaces between by base portion
Locating dowel.Dented space is respectively used to house the entocondyle and external condyle of condyle of femur, thereon formed with the femur of condyle of femur pass
The tibial prosthesis face that nodal section coordinates.Locating dowel passes through the passage of condyle of femur, can be with when knee-joint prosthesis carries out high curvature movement
The cam engagement of condyle of femur.Tibial prosthesis face has identical radius of curvature on coronal-plane, and exists slightly larger than femoral joint face
Radius of curvature on coronal-plane.
Knee-joint prosthesis is coordinated to realize that it is being closed by the femoral joint face of condyle of femur and the tibial prosthesis face of shin bone pad
Damaged joints face is substituted when saving curvature movement, recovers the function of joint motions, but due to the shin bone pad of existing knee-joint prosthesis
It is identical with radius of curvature of the tibial prosthesis face that the femoral joint face of condyle of femur coordinates on coronal-plane so that shin bone pad and femur
Condyle can limit the interior activity of turning up in joint when cooperation, influence kneed normal activity, and increase kneed mill
Damage.
Therefore, it is necessory to provide a kind of improved knee-joint prosthesis, to overcome defect present in prior art.
【The content of the invention】
It is an object of the invention to a kind of knee-joint prosthesis for recovering joint proper motion and slowing down abrasion.
To achieve the above object, knee-joint prosthesis of the invention is achieved by the following technical solution：A kind of knee joint
Prosthese, recover joint proper motion for substituting damaged joints face in total knee arthroplasty, it includes being mounted on patient femur
On condyle of femur and the shin bone pad that coordinates with condyle of femur, condyle of femur include a pair spaced entocondyles and external condyle and
The intercondylar passage being formed between entocondyle and external condyle, shin bone pad have base portion and are recessed downwards by base portion between two formed
Every depressed part, condyle of femur has the femoral joint that is made up of the partial outer face of entocondyle and the partial outer face of external condyle
Face, shin bone pad have the tibial prosthesis face coordinated with the femoral joint face of condyle of femur, and the femoral joint face has on coronal-plane
There is identical radius of curvature, the tibial prosthesis face is made up of two curved surfaces of different curvature radius on coronal-plane, institute
The radius of curvature for stating the curved surface of the fit inside of condyle on the inside or outside of the entocondyle of tibial prosthesis face and condyle of femur is closed less than shin bone
The subsequent corrosion for the curved surface that the outside of the entocondyle of nodal section and condyle of femur or the outside of external condyle coordinate.
Preferably, the curved surface of the fit inside of the inner or outer side condyle of the entocondyle of the tibial prosthesis face and condyle of femur is
The curved surface of first bearing surface, the outside of the entocondyle of the tibial prosthesis and condyle of femur or the fit inside of external condyle supports for second
Junction, the radius of curvature of first bearing surface are slightly larger than the radius of curvature of the articular surface of condyle of femur.
Preferably, the radius of curvature of second bearing surface is more than the radius of curvature of the first bearing surface and is more than femur
The radius of curvature of articular surface.
Preferably, the matching degree in the femoral joint face of first bearing surface and condyle of femur higher than second bearing surface with
The matching degree in the femoral joint face of condyle of femur.
Preferably, the femoral joint face of the condyle of femur and the matching degree of first bearing surface in the tibial prosthesis face are
90%~95%.
Preferably, the femoral joint face of the condyle of femur and the matching degree of second bearing surface in the tibial prosthesis face are
60%~70%.
Preferably, the radius of curvature in the femoral joint face of the condyle of femur is 30~50mm.
Preferably, the tibial prosthesis face be by two depressed parts upper table downwards concave shape into, two depressed part
The entocondyle and external condyle of condyle of femur are housed respectively.
The shin bone pad of knee-joint prosthesis provided by the invention has on coronal-plane by two curved surfaces of different curvature radius
The tibial prosthesis face of composition, and the first of the fit inside of the entocondyle of tibial prosthesis face and condyle of femur inner or outer side condyle is supported
The radius of curvature of junction is less than second that the outside of the entocondyle of tibial prosthesis face and condyle of femur or the outside of external condyle coordinate and supported
The subsequent corrosion of junction so that the first bearing surface of shin bone pad abuts with the matching degree in the femoral joint face of condyle of femur higher than second
The matching degree in face and femoral joint face, with convenient knee-joint prosthesis during the curvature movement in turn up motion, recover pass
Nature, proper motion are saved, while can avoid producing unbalance stress because of the intra-articular limitation of activity that turns up and aggravating knee-joint prosthesis
The problem of abrasion.
【Brief description of the drawings】
Fig. 1 is the three-dimensional combination figure of the knee-joint prosthesis of the present invention.
Fig. 2 is the three-dimensional exploded view of the knee-joint prosthesis of the present invention.
Fig. 3 is the side view of the knee-joint prosthesis shown in Fig. 1
Fig. 4 is the sectional view along A-A directions shown in Fig. 3
Fig. 5 is the side view of the condyle of femur of the knee-joint prosthesis of the present invention.
Fig. 6 is the sectional view along B-B directions shown in Fig. 5, and wherein knee sprung angle is 0 degree.
Fig. 7 is the sectional view along C-C directions shown in Fig. 5, and wherein knee sprung angle is about 30 degree.
Fig. 8 is the sectional view along D-D directions shown in Fig. 5, and wherein knee sprung angle is about 60 degree.
Fig. 9 is the sectional view along E-E directions shown in Fig. 5, and wherein knee sprung angle is about 90 degree.
【Embodiment】
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
The knee-joint prosthesis 100 that Fig. 1 to Fig. 9 show the present invention is used in total knee arthroplasty to substitute impaired pass
Nodal section, recover joint proper motion, it includes the fixed condyle of femur 1 and and condyle of femur being mounted on patient femur (not shown)
The 1 shin bone pad 2 coordinated.Wherein, Fig. 6 is sectional view when knee-joint prosthesis 100 is in 0 degree of curvature movement, and Fig. 7 is that knee joint is false
Body 100 is about at sectional view during 30 degree of curvature movements, and Fig. 8 is cuing open when knee-joint prosthesis 100 is about at 60 degree of curvature movements
View, Fig. 9 are sectional view when knee-joint prosthesis 100 is about at 90 degree of curvature movements.
The condyle of femur 1 includes a pair spaced entocondyles 10 and external condyle 11 and is connected entocondyle 10 and outside
The femoral bone pulley 12 of the front end of condyle 11.The condyle of femur 1, which has, to be located between entocondyle 10 and external condyle 11 and is set in running through vertically
The passage 14 put, it is available for posterior cruciate ligament of knee (not shown) to pass through.The passage 14 located at condyle of femur 1 and femur fossa intercondyloidea (not
Diagram) corresponding opening position.The passage 14 is enclosed to set and formed by entocondyle 10, external condyle 11 and the lower end of femoral bone pulley 12
's.The condyle of femur 1 has the femoral joint face 15 coordinated with shin bone pad 2.The femoral joint face 15 is by entocondyle 10
What the partial outer face of partial outer face and external condyle 11 was formed.The femoral joint face 15 has the identical on coronal-plane bent
Rate radius, and the radius of curvature in femoral joint face 15 is 30~50mm.
Please emphasis is matched completely with patellar prosthesis (not shown) refering to shown in Fig. 5 to Fig. 9, the femoral bone pulley 12 also has
Facies articularis patellae 120.The facies articularis patellae 120 is made up of the curved surface of multiple different curvature radius on coronal-plane.
It is in reduce and then keep constant again to become with the increase of joint flexion angle that the facies articularis patellae 120 has on coronal-plane
The radius of curvature that gesture is set, as shown in Fig. 6 to Fig. 9, knee-joint prosthesis 100 is in 0 °, about 30 °, about 60 °, about 90 ° of flexing fortune
When dynamic, radius of curvature of the facies articularis patellae 120 on coronal-plane is respectively R1, R2, R3, R4, and R1 ﹥ R2 ﹥ R3=R4.The kneecap
The angle that the tangent line of each curved surface on coronal-plane of facies articularis ossium 120 is formed is in reduce then with the increase of joint flexion angle
Constant trend is kept to set again, as shown in Fig. 6 to Fig. 9, knee-joint prosthesis 100 is in 0 °, about 30 °, about 60 °, about 90 ° and bent
During Qu Yundong, the angle that each curved surface tangent line of the facies articularis patellae 120 on coronal-plane is formed is respectively α1、α2、α3、α4, and α1﹥
α2﹥ α3=α4.The depth of the facies articularis patellae 120 is deepened with the increase of joint flexion angle, can make condyle of femur 1 and kneecap
Bone prosthese (not shown) remains to stabilization in high curvature movement and coordinated, and avoids condyle of femur 1 and patellar prosthesis in high curvature movement
It is (not shown) to depart from, while can avoid between the femoral bone pulley 12 of condyle of femur 1 and patellar prosthesis (not shown) because unbalance stress is led
The problem of causing abrasion aggravation, so as to reduce the abrasion of knee-joint prosthesis 100.The depth of the facies articularis patellae 120 be in 1~
In the range of 6mm.As shown in Figures 6 to 9, it is described when knee-joint prosthesis 100 is in 0 °, about 30 °, about 60 °, about 90 ° of curvature movements
The depth of facies articularis patellae 120 is respectively H1, H2, H3, H4, and H1 ＜ H2 ＜ H3 ＜ H4.
The facies articularis patellae 120 has the first mating surface 121 and the second mating surface 122.First mating surface 121 exists
Radius of curvature on coronal-plane reduces with the increase of joint flexion angle, and the first mating surface 121 as shown in Figure 6 to 8 exists
Radius of curvature when knee-joint prosthesis 100 is in 0 °, about 30 °, about 60 ° is respectively R1, R2, R3, and R1 ﹥ R2 ﹥ R3.Described
Two mating surfaces 122 have identical radius of curvature R 4.The mating surface 121 of radius of curvature R 4 and first of second mating surface 122
Minimum profile curvature radius R3 it is identical.First mating surface 121 angle that each curved surface tangent line is formed on coronal-plane is with joint
The increase of flexion angle and reduce, the first mating surface 121 as shown in Figure 6 to 8 knee-joint prosthesis 100 be in 0 °, about
Radius of curvature at 30 °, about 60 ° is respectively α1、α2、α3, and α1﹥ α2﹥ α3.Second mating surface 122 is each on coronal-plane
The angle α that the tangent line of curved surface is formed4It is identical.Second mating surface 122 angle α that each curved surface tangent line is formed on coronal-plane4Deng
In the first mating surface 121 minimum angle α that each curved surface tangent line is formed on coronal-plane3.The facies articularis patellae 120 is in coronal-plane
The angle α formed between upper each curved surface tangent line1、α2、α3、α4Between 150 degree~130 degree.The facies articularis patellae 120 is in
Intermediate recess both sides protrude out shape setting.
Shin bone pad 2 is mounted on tibial prosthesis (not shown) by grafting snap close mode, positioned at condyle of femur 1 and tibial prosthesis
Between (not shown).The shin bone pad 2 has the base portion 20 of setting in the form of annular discs and depression forms and is in downwards by base portion 20
It is spaced the depressed part 21,22 that shape is set.The depressed part 21,22 is respectively used to house the entocondyle 10 and external condyle of condyle of femur 1
11.The shin bone pad 2 has the tibial prosthesis face 23 coordinated with the femoral joint face 15 of condyle of femur 1.The tibial prosthesis face 23
It is to be made up of the upper surface of two depressed parts 21,22.
Please emphasis refering to shown in Fig. 2 to Fig. 4, the tibial prosthesis face 23 is on coronal-plane by two different radius of curvature
R1'、R2' curved surface form, two curved surface is respectively the first bearing surface 230 and the second bearing surface 231.First bearing surface 230
Can be with the inner side of the entocondyle 10 of condyle of femur 1 or the fit inside of external condyle 11.Second bearing surface 231 can be with condyle of femur
The outside of 1 entocondyle 10 or the outside of external condyle 11 coordinate.The curvature of first bearing surface 230 in the tibial prosthesis face 23 half
Footpath R1' slightly larger than condyle of femur 1 femoral joint face 15 radius of curvature.Second bearing surface 231 in the tibial prosthesis face 23
Radius of curvature R2' more than the radius of curvature R of the first bearing surface 2301'.The femoral joint face 15 of the condyle of femur 1 and the shin bone
The matching degree of first bearing surface 230 of articular surface 23 is 90%~95%.The femoral joint face 15 of the condyle of femur 1 and the shin
The matching degree of second bearing surface 231 of facies articularis ossium 23 is 60%~70%.First bearing surface 230 in the tibial prosthesis face 23
Matching degree with the femoral joint face 15 of condyle of femur 1 is higher than the second bearing surface 231 and the matching in the femoral joint face 15 of condyle of femur 1
Degree, the interior motion of turning up of knee-joint prosthesis during curvature movement can be beneficial to, so that knee-joint prosthesis more they tends to human synovial certainly
So motion.
The facies articularis patellae 120 of the femoral bone pulley 12 of the condyle of femur 1 of the knee-joint prosthesis 100 of the present invention has on coronal-plane
Have with the increase of joint flexion angle and reduce and then keep constant multiple radius of curvature, have what is formed by each curved surface tangent line
And increase with joint flexion angle and reduce and then keep constant angle and deepen with the increase of joint flexion angle
Depth, the femoral bone pulley 12 of condyle of femur 1 can be made to continue surely with patellar prosthesis (not shown) during the increase of joint flexion angle
Fixed contact, avoids patellar prosthesis (not shown) from departing from the femoral bone pulley 12 of condyle of femur 1 in high flexion angle, and it is false to improve knee joint
The stability of body 100, while can avoid between the femoral bone pulley 12 of condyle of femur 1 and patellar prosthesis (not shown) because unbalance stress is led
The problem of causing abrasion aggravation, reduces the abrasion of knee-joint prosthesis 100.In addition, the femoral joint face 15 of shin bone pad 2 and condyle of femur 1
The tibial prosthesis face 23 of cooperation is on coronal-plane by the first bearing surface 230 of two different radius of curvature, the second bearing surface 231
Form, and with the inner side of the entocondyle 10 of condyle of femur 1 or the curvature of the first bearing surface 230 of the fit inside of external condyle 11
Radius R1' it is less than the curvature of the second bearing surface 231 coordinated with the outside of the entocondyle 10 of condyle of femur 1 or the outside of external condyle 11
Radius R2', first bearing surface 230 in tibial prosthesis face 23 and the matching degree in the femoral joint face 15 of condyle of femur 1 can be made higher than the
Two bearing surfaces 231 and the matching degree in the femoral joint face of condyle of femur 1, so beneficial to during curvature movement knee-joint prosthesis it is interior
Turn up motion, so that knee-joint prosthesis more they tends to human synovial proper motion.
To sum up, these are only presently preferred embodiments of the present invention, should not limit the scope of the present invention with this, i.e., it is every according to
The simple equivalent changes and modifications that claims of the present invention and present specification are made, it all should still belong to the present invention
In the range of patent covers.
Claims (8)
1. a kind of knee-joint prosthesis, recover joint proper motion for substituting damaged joints face in total knee arthroplasty, it is wrapped
The condyle of femur being mounted on patient femur and the shin bone pad coordinated with condyle of femur are included, condyle of femur is spaced interior including a pair
Side condyle and external condyle and the intercondylar passage being formed between entocondyle and external condyle, shin bone pad have base portion and from base portion to
The depressed part at two intervals that lower recess is formed, condyle of femur have by the partial outer face of entocondyle and the partial outer face of external condyle
The femoral joint face of composition, shin bone pad have the tibial prosthesis face coordinated with the femoral joint face of condyle of femur, it is characterised in that：Institute
State femoral joint face has identical radius of curvature on coronal-plane, and the tibial prosthesis face is by different curvature on coronal-plane
What two curved surfaces of radius were formed, the song of the fit inside of condyle on the inside or outside of the entocondyle of the tibial prosthesis face and condyle of femur
The radius of curvature in face is less than the song for the curved surface that the outside of the entocondyle of tibial prosthesis face and condyle of femur or the outside of external condyle coordinate
Radius surface.
2. knee-joint prosthesis as claimed in claim 1, it is characterised in that：The entocondyle of the tibial prosthesis face and condyle of femur
The curved surface of the fit inside of inner or outer side condyle is the first bearing surface, the outside of the entocondyle of the tibial prosthesis and condyle of femur or
The curved surface of the fit inside of external condyle is the second bearing surface, and the radius of curvature of first bearing surface is slightly larger than the joint of condyle of femur
The radius of curvature in face.
3. knee-joint prosthesis as claimed in claim 2, it is characterised in that：The radius of curvature of second bearing surface is more than first
The radius of curvature of bearing surface and the radius of curvature for being more than femoral joint face.
4. knee-joint prosthesis as claimed in claim 3, it is characterised in that：The femoral joint of first bearing surface and condyle of femur
The matching degree in face is higher than second bearing surface and the matching degree in the femoral joint face of condyle of femur.
5. knee-joint prosthesis as claimed in claim 4, it is characterised in that：The femoral joint face of the condyle of femur and the shin bone
The matching degree of first bearing surface of articular surface is 90%~95%.
6. knee-joint prosthesis as claimed in claim 5, it is characterised in that：The femoral joint face of the condyle of femur and the shin bone
The matching degree of second bearing surface of articular surface is 60%~70%.
7. knee-joint prosthesis as claimed in claim 4, it is characterised in that：The radius of curvature in the femoral joint face of the condyle of femur
For 30~50mm.
8. the knee-joint prosthesis as described in any one of claim 1 to 7, it is characterised in that：The tibial prosthesis face is by two
The upper table of depressed part downwards concave shape into, two depressed part houses the entocondyle and external condyle of condyle of femur respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970293.XA CN107802381A (en) | 2017-10-16 | 2017-10-16 | Knee-joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710970293.XA CN107802381A (en) | 2017-10-16 | 2017-10-16 | Knee-joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107802381A true CN107802381A (en) | 2018-03-16 |
Family
ID=61591538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710970293.XA Pending CN107802381A (en) | 2017-10-16 | 2017-10-16 | Knee-joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107802381A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440675A1 (en) * | 2003-01-21 | 2004-07-28 | Howmedica Osteonics Corp. | Emulating natural knee kinematics in a knee prothesis |
| GB2474242A (en) * | 2009-10-07 | 2011-04-13 | Otis Biotech Co Ltd | Artificial knee joint for deep flexion |
| FR2955482A1 (en) * | 2010-01-27 | 2011-07-29 | Claude Schwartz | Prosthetic femoral component assembly for knee prosthesis, has condyles cooperating with tibial plate of knee prosthesis, where each condyle include exterior convex section defined by toric surfaces with radius of curvature |
| EP2438889A1 (en) * | 2010-10-05 | 2012-04-11 | Aesculap Ag | Knee joint prosthesis |
| CN104066402A (en) * | 2011-11-18 | 2014-09-24 | 捷迈有限公司 | Tibial bearing component for a knee prosthesis with improved articular characteristics |
| WO2016063714A1 (en) * | 2014-10-21 | 2016-04-28 | 京セラメディカル株式会社 | Artificial knee joint implant |
| CN207755428U (en) * | 2017-10-16 | 2018-08-24 | 刘方 | Knee-joint prosthesis |
-
2017
- 2017-10-16 CN CN201710970293.XA patent/CN107802381A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440675A1 (en) * | 2003-01-21 | 2004-07-28 | Howmedica Osteonics Corp. | Emulating natural knee kinematics in a knee prothesis |
| GB2474242A (en) * | 2009-10-07 | 2011-04-13 | Otis Biotech Co Ltd | Artificial knee joint for deep flexion |
| FR2955482A1 (en) * | 2010-01-27 | 2011-07-29 | Claude Schwartz | Prosthetic femoral component assembly for knee prosthesis, has condyles cooperating with tibial plate of knee prosthesis, where each condyle include exterior convex section defined by toric surfaces with radius of curvature |
| EP2438889A1 (en) * | 2010-10-05 | 2012-04-11 | Aesculap Ag | Knee joint prosthesis |
| CN104066402A (en) * | 2011-11-18 | 2014-09-24 | 捷迈有限公司 | Tibial bearing component for a knee prosthesis with improved articular characteristics |
| WO2016063714A1 (en) * | 2014-10-21 | 2016-04-28 | 京セラメディカル株式会社 | Artificial knee joint implant |
| CN207755428U (en) * | 2017-10-16 | 2018-08-24 | 刘方 | Knee-joint prosthesis |
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