CN109620481A - Knee joint femoral condyles part and the full condyle articular system for applying it - Google Patents
Knee joint femoral condyles part and the full condyle articular system for applying it Download PDFInfo
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- CN109620481A CN109620481A CN201910106910.0A CN201910106910A CN109620481A CN 109620481 A CN109620481 A CN 109620481A CN 201910106910 A CN201910106910 A CN 201910106910A CN 109620481 A CN109620481 A CN 109620481A
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- stationary plane
- intersection
- entocondyle
- linear grooves
- angle
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- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- 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
- A61F2002/30199—Three-dimensional shapes
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
Abstract
The invention discloses knee joint femoral condyles parts, entocondyle and external condyle including left and right settings, the entocondyle front end of entocondyle and the external condyle front end of external condyle connect, the entocondyle rear end of entocondyle and the external condyle rear end of external condyle are integrated, the middle section of entocondyle and the middle section of external condyle are separated from each other, entocondyle has entocondyle stationary plane, the external condyle has external condyle stationary plane, porous layer is respectively equipped on entocondyle stationary plane and external condyle stationary plane, porous layer has cellular porosity, porosity is 52-72%, the range in aperture is 500-700 μm, porous layer with a thickness of 0.5-1.5mm, knee joint femoral condyles part is integrally formed using 3D printing technique.The invention also discloses the full condyle articular system using it, including knee joint femoral condyles part, liner component and tibia support component, the face of tibia support component and tibia contact is equipped with the integrally formed porous layer of 3D printing.The present invention facilitates Bone Ingrowth, and porous layer is not easily to fall off.
Description
Technical field
The present invention relates to articular prosthesis technical fields, in particular to knee joint femoral condyles part and the full condyle joint using it
System.
Background technique
Artificial knee joint prosthesis includes femoral condylar components, tibia support component and the liner component being disposed there between.Stock
Bone condyles part is connected to distal femur, and tibia support component is connected to proximal tibia.Liner component is connect with tibia support component, femur
Condyles part is contacted with liner component.In the conventional technology, the coating for slightly making face can be equipped on condyle of femur and tibia support, it is therefore an objective to increase
Add the contact area of cancellous bone and prosthesis assembly.Coating has hole effect, and osteoblast occurs under the promotion of pore structure
Adherency, differentiation and growth, make mechanical compatibility and biocompatibility that articular prosthesis is improved in new Bone Ingrowth hole.With
Requirement of the people to medical treatment is higher and higher, promotes the ability of Bone Ingrowth to put forward new requirements articular prosthesis.Traditional knee closes
The coating of section prosthese is the matrix surface in articular prosthesis by plasma spraying or the molding of metal sintering process later period, is lacked
It is trapped in the intensity of the binder course between coating and matrix is lower, and sometimes coating can fall off from matrix, influences the knee joint longevity
Life.In addition the parameters such as traditional coating aperture, porosity and thickness are unable to accurately control, and the combination of coating and sclerotin is unable to reach
Optimization.
Summary of the invention
According to an aspect of the present invention, knee joint femoral condyles part, entocondyle and external condyle including left and right settings are interior
The entocondyle front end of side condyle and the external condyle front end of external condyle connect, behind the entocondyle rear end of entocondyle and the external condyle of external condyle
End is integrated, and the middle section of entocondyle and the middle section of external condyle are separated from each other, and entocondyle has entocondyle stationary plane, outside
Side condyle has external condyle stationary plane, and porous layer is respectively equipped on entocondyle stationary plane and external condyle stationary plane, and porous layer has bee
Nest shape hole, porosity 52-72%, the range in aperture are 500-700 μm, porous layer with a thickness of 0.5-1.5mm, knee joint
Femoral condylar components are integrally formed using 3D printing technique.
In some embodiments, entocondyle stationary plane includes the first stationary plane being sequentially connected, the second stationary plane, third
Stationary plane, the 4th stationary plane and the 5th stationary plane, external condyle stationary plane include the 6th stationary plane being sequentially connected, the 7th fixation
Face, the 8th stationary plane, the 9th stationary plane and the tenth stationary plane, the first stationary plane and the second stationary plane are crossed to form the first intersection,
Second stationary plane and third stationary plane are crossed to form the second intersection, and third stationary plane and the 4th stationary plane are crossed to form third friendship
Line, the 4th stationary plane and the 5th stationary plane form the 4th intersection, the intersection and the first intersection of the 6th stationary plane and the 7th stationary plane
Collinearly, the intersection of the 7th stationary plane and the 8th stationary plane is conllinear with the second intersection, the intersection of the 8th stationary plane and the 9th stationary plane
Conllinear with third intersection, the intersection of the 9th stationary plane and the tenth stationary plane is conllinear with the 4th intersection, the first intersection, the second intersection,
Third intersection and the 4th intersection are parallel to each other.
In some embodiments, the angle of the first stationary plane and the second stationary plane is 130-140 °, the second stationary plane with
The angle of third stationary plane is 130-140 °, and the angle of third stationary plane and the 4th stationary plane is 130-140 °, the 4th stationary plane
Angle with the 5th stationary plane is 130-140 °, and the angle of the 6th stationary plane and the 7th stationary plane is 130-140 °, and the 7th is fixed
The angle of face and the 8th stationary plane is 130-140 °, and the angle of the 8th stationary plane and the 9th stationary plane is 130-140 °, and the 9th is solid
The angle for determining face and the tenth stationary plane is 130-140 °.
In some embodiments, multiple linear grooves are set on entocondyle stationary plane and external condyle stationary plane, first is solid
The linear grooves on face and the linear grooves on the 6th stationary plane are determined all with the first intersection in 85-95 ° of angle, on the second stationary plane
Linear grooves and the 7th stationary plane on linear groove part and the second intersection in 85-95 ° of angle, it is linear recessed on third stationary plane
The angle of slot and third intersection is 65 ± 5 °, and the angle of the linear grooves on the 8th stationary plane and third intersection is 75 ± 5 °, the
The angle of linear grooves and the 4th intersection on four stationary planes is 65 ± 5 °, the linear grooves on the 9th stationary plane and the 4th intersection
Angle be 75 ± 5 °, the angle of the linear grooves on the 5th stationary plane and the 4th intersection is 70 ± 5 °, on the tenth stationary plane
The angle of linear grooves and the 4th intersection is 80 ± 5 °.
In some embodiments, the opening width of linear grooves is 0.3-0.7mm, the spacing between adjacent linear groove
For 1.1-1.9mm, the depth of linear grooves 1300 is 0.2-0.4mm.
In some embodiments, it is vertically equipped with the first column on third stationary plane, is vertically equipped with second on the 8th stationary plane
Column, the first column and the second column are all in round estrade, and the surface of the first column is equipped with the first ridge rib, the first ridge rib along the first column bus
Extend, the surface of the second column is equipped with the second ridge rib, and the second ridge rib extends along the bus of the second column.
According to another aspect of the present invention, a kind of full condyle articular system, including knee joint femoral condyles part are provided, also wrapped
Include tibia support component and liner component.
In some embodiments, tibia support component includes platform, and the lower surface of platform is equipped with the company extended far from platform
Fitting, the lower surface of platform and the surface of connector are equipped with porous layer, and porous layer has cellular porosity, porosity 52-
72%, the range in aperture is 500-700 μm, porous layer with a thickness of 0.5-1.5mm, tibia support component uses 3D printing technique one
It is body formed.
In some embodiments, connector includes left wing and right flank, and the surface of left wing and right flank is equipped with linear grooves,
The extending direction of linear grooves is vertical with platform, and the opening widths of linear grooves is 0.3-0.7mm, between adjacent linear groove
Spacing is 1.1-1.9mm, and the depth of linear grooves is 0.2-0.4mm.
The invention has the following beneficial effects: the cellular porosity of porous layer and disclosed porositys, aperture model
It encloses, porous layer thickness etc. can be greatly promoted Bone Ingrowth；Porous layer and solid section are integrally formed using 3D printing technique, porous
Layer is firmly combined with solid section, can be prevented porous layer from falling off, be improved the service life of prosthetic joint, linear grooves
Extending direction is similar to bone trabecula orientation, is conducive to keep ordered arrangement in distal femur bone trabecula growth course, promotes
Bone trabecula is grown into.
Detailed description of the invention
Fig. 1 is the perspective view of the knee joint femoral condyles part of an embodiment of the present invention.
Fig. 2 is another Perspective figure of the knee joint femoral condyles part of an embodiment of the present invention.
Fig. 3 is the left hand view of the knee joint femoral condyles part of an embodiment of the present invention.
Fig. 4 is the right part of flg of the knee joint femoral condyles part of an embodiment of the present invention.
Fig. 5 is the knee joint femoral condyles part of an embodiment of the present invention from perpendicular to the first stationary plane and the 6th stationary plane
The schematic diagram of direction observation.
Fig. 6 is the knee joint femoral condyles part of an embodiment of the present invention from perpendicular to the second stationary plane and the 7th stationary plane
The schematic diagram of direction observation.
Fig. 7 is the knee joint femoral condyles part of an embodiment of the present invention from perpendicular to third stationary plane and the 8th stationary plane
The schematic diagram of direction observation.
Fig. 8 is the knee joint femoral condyles part of an embodiment of the present invention from perpendicular to the 4th stationary plane and the 9th stationary plane
The schematic diagram of direction observation.
Fig. 9 is the knee joint femoral condyles part of an embodiment of the present invention from perpendicular to the 5th stationary plane and the tenth stationary plane
The schematic diagram of direction observation.
Figure 10 is the enlarged drawing of location A in Fig. 7.
Figure 11 is the linear grooves schematic cross-section of the knee joint femoral condyles part of an embodiment of the present invention.
Figure 12 is the left hand view under the full condyle articular system use state of an embodiment of the present invention.
Figure 13 is the right part of flg under the full condyle articular system use state of an embodiment of the present invention.
Figure 14 is the perspective view of the liner component of the full condyle articular system of an embodiment of the present invention.
Figure 15 is the perspective view of another angle of the liner component of the full condyle articular system of an embodiment of the present invention.
Figure 16 is the perspective view of the tibia support component of the full condyle articular system of an embodiment of the present invention.
Figure 17 is the bottom view of the tibia support component of the full condyle articular system of an embodiment of the present invention.
Figure 18 is the rearview of the tibia support component of the full condyle articular system of an embodiment of the present invention.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
According to an aspect of the present invention, a kind of knee joint femoral condyles part 1 is provided.As shown in Figs. 1-2, knee joint femoral
Condyles part 1 includes entocondyle 1100 and external condyle 1200,1200 left and right settings of entocondyle 1100 and external condyle.Entocondyle 1100
Entocondyle front end 1101 and the external condyle front end 1201 of external condyle 1200 are integrated, the entocondyle rear end 1102 of entocondyle 1100 with
The external condyle rear end 1202 of external condyle 1200 connects.The middle section of entocondyle 1100 and the middle section of external condyle 1200 are each other
Separation.Knee joint femoral condyles part 1 is in beloid shape.The condyle of femur of human femur under loading distal end can be divided into medial femoral condyle
With lateral femur condyle, the entocondyle 1100 of knee joint femoral condyles part 1 is used to replace the medial femoral condyle of human body, external condyle 1200
For replacing the lateral femur condyle of human body.
As shown in Figs. 1-2, entocondyle front end 1101, external condyle front end 1201, entocondyle rear end 1102 and external condyle rear end
1202 upwarp, and making the knee joint femoral condyles part 1 from sagittal plane is in bending.In the concave side of entocondyle 1100, also
It is directed towards that side of distal femur, forms entocondyle stationary plane 1103.The concave side of condyle 1200 on the outside, that is, towards femur
That side of distal end forms external condyle stationary plane 1203.Entocondyle 1100 further includes the inside opposite with entocondyle stationary plane 1103
Facies artieularis malleolaris 1109, inside facies artieularis malleolaris 1109 are in the curved surface of evagination.External condyle 1200 further includes and external condyle stationary plane 1203
Opposite outside facies artieularis malleolaris 1209, outside facies artieularis malleolaris 1209 are in the curved surface of evagination.
Porous layer is respectively equipped on entocondyle stationary plane 1103 and external condyle stationary plane 1203, porous layer has honeycomb structure
Gap, porosity 52-72%, the range in aperture are 500-700 μm, porous layer with a thickness of 0.5-1.5mm.Entire knee joint stock
Bone condyles part 1 is formed using 3D printing technique, and porous layer is also to be integrally formed by 3D printing technique in knee joint femoral condyles
On part 1.It, first will be in distal femur cut-out bone, in femur when knee joint femoral condyles part 1 is connected to distal femur
Distal end forms the resected bone face that can be matched and contact with entocondyle stationary plane 1103 and external condyle stationary plane 1203, on resected bone face
Bone trabecula can be exposed, bone trabecula is towards growing in porous layer.From microcosmic, bone trabecula is a kind of in cellular solid netted
Structure.The porosity ranges of human body bone trabecula are 70-84%, pore diameter range 360-820um.The porous layer of present embodiment
Cellular porosity is conducive to adherency and growth of the bone trabecula in hole close to human body bone trabecula.3D printing technique is molding
The even size distribution of porous layer hole is good, and due to using integrated molding, the bond strength of porous layer and solid section
It is high.Experiment shows by taking Ti-6Al-4V as an example, the static stretch intensity of porous layer and solid section binding site that 3D printing goes out
Greater than 66MPa, Static Shear Strength be greater than 52MPa (requirement of the U.S. FDA for coating be static stretch intensity be greater than 22MPa,
Static Shear Strength is greater than 20MPa).
In one or more embodiments, as shown in Figs 1-4, entocondyle stationary plane 1103 includes first be sequentially connected
Stationary plane 1104, the second stationary plane 1105, third stationary plane 1106, the 4th stationary plane 1107 and the 5th stationary plane 1108, outside
Condyle stationary plane 1203 includes that the 6th stationary plane 1204, the 7th stationary plane 1205, the 8th stationary plane the 1206, the 9th being sequentially connected are consolidated
Determine face 1207 and the tenth stationary plane 1208.For first stationary plane 1104 close to entocondyle rear end 1102, the 5th stationary plane 1108 is close
Entocondyle front end 1101.6th stationary plane 1204 is close to external condyle rear end 1202, and the tenth stationary plane 1208 is close to external condyle front end
1201.First stationary plane 1104, the second stationary plane 1105, third stationary plane 1106, the 4th stationary plane 1107, the 5th stationary plane
1108, the 6th stationary plane 1204, the 7th stationary plane 1205, the 8th stationary plane 1206, the 9th stationary plane 1207 and the tenth stationary plane
1208 be all in flat.First stationary plane 1104 and the second stationary plane 1105 are crossed to form the first intersection 9001, the second stationary plane
1105 are crossed to form the second intersection 9002 with third stationary plane 1106, and third stationary plane 1106 intersects shape with the 4th stationary plane 1107
At third intersection 9003, the 4th stationary plane 1107 and the 5th stationary plane 1108 form the 4th intersection 9004.6th stationary plane 1204
Conllinear, the intersection of the 7th stationary plane 1205 and the 8th stationary plane 1206 with the intersection of the 7th stationary plane 1205 and the first intersection 9001
Conllinear with the second intersection 9002, the intersection and third intersection 9003 of the 8th stationary plane 1206 and the 9th stationary plane 1207 are conllinear, the
The intersection and the 4th intersection 9004 of nine stationary planes 1207 and the tenth stationary plane 1208 are conllinear.First intersection 9001, the second intersection
9002, third intersection 9003 and the 4th intersection 9004 are parallel to each other.Due to the entocondyle rear end 1102 of entocondyle 1100 and outside
The external condyle rear end 1202 of condyle 1200 is integrated, therefore the 5th stationary plane 1108 is connected with the tenth stationary plane 1208 or so, and the 4th
The end part to the front of stationary plane 1107 and end part to the front of the 9th stationary plane 1207 or so are connected.
The angle of first stationary plane 1104 and the second stationary plane 1105 is 130-140 °, preferably 135 °.Second stationary plane
1105 and the angle of third stationary plane 1106 are 130-140 °, preferably 135 °.Third stationary plane 1106 and the 4th stationary plane
1107 angle is 130-140 °, preferably 135 °.The angle of 4th stationary plane 1107 and the 5th stationary plane 1108 is 130-
140 °, preferably 138 °.The angle of 6th stationary plane 1204 and the 7th stationary plane 1205 is 130-140 °, preferably 135 °.The
The angle of seven stationary planes 1205 and the 8th stationary plane 1206 is 130-140 °, preferably 135 °.8th stationary plane 1206 and the 9th
The angle of stationary plane 1207 is 130-140 °, preferably 135 °.The angle of 9th stationary plane 1207 and the tenth stationary plane 1208 is
130-140 °, preferably 138 °.
As shown in Figure 1, being vertically equipped with the first column 1110 on third stationary plane 1106, vertically it is equipped on the 8th stationary plane 1206
Second column 1210, the first column 1110 and the second column 1210 are all in round estrade, and the surface of the first column 1110 is equipped with the first ridge rib 1111,
First ridge rib 1111 extends along the bus of the first column 1110, and the surface of the second column 1210 is equipped with the second ridge rib 1211, the second ridge
Rib 1211 extends along the bus of the second column 1210.When knee joint femoral condyles part 1 is connect with distal femur, 1110 He of the first column
Second column 1210 is inserted into distal femur, improves the fastness of installation.
In conjunction with Fig. 5-10, multiple linear grooves 1300 are set on entocondyle stationary plane 1103 and external condyle stationary plane 1203,
That is linear grooves 1300 are all disposed on the first stationary plane to the tenth stationary plane.All linear grooves 1300 all pass through 3D
Printing technique molding, the depth of linear grooves 1300 are less than the thickness of porous layer, therefore also have in linear grooves 1300 porous
Structure.Fig. 5 is from perpendicular to the schematic diagram from the first stationary plane 1104 and 1204 direction of the 6th stationary plane, the first stationary plane
Multiple linear grooves 1300 on 1104 are parallel to each other, and multiple linear grooves 1300 on the 6th stationary plane 1204 are parallel to each other,
Linear grooves 1300 in linear grooves 1300 and the 6th stationary plane 1204 on first stationary plane 1104 all with the first intersection
9001 be in 85-95 ° of angle.Fig. 6 is from perpendicular to the schematic diagram from the second stationary plane 1105 and the 7th stationary plane 1,205 second
Multiple linear grooves 1300 on stationary plane 1105 are parallel to each other, and multiple linear grooves 1300 on the 7th stationary plane 1205 are each other
In parallel, on the linear grooves 1300 on the second stationary plane 1105 and the 7th stationary plane 1205 linear grooves 1300 all with the second intersection
9002 be in 85-95 ° of angle.Fig. 7 be from perpendicular to the schematic diagram from 1206 direction of third stationary plane 1106 and the 8th stationary plane,
A plurality of linear grooves 1300 on third stationary plane 1106 are parallel to each other, a plurality of linear grooves 1300 on the 8th stationary plane 1206
Parallel to each other, the angle of linear grooves 1300 and third intersection 9003 on third stationary plane 1106 is 65 ± 5 °, and the 8th is fixed
The angle of linear grooves 1300 and third intersection 9003 on face 1206 is 75 ± 5 °.Fig. 8 is from perpendicular to the 4th stationary plane
1107 and the observation of 1207 direction of the 9th stationary plane schematic diagram, multiple linear grooves 1300 on the 4th stationary plane 1107 put down each other
It goes, multiple linear grooves 1300 on the 9th stationary plane 1207 are parallel to each other, the linear grooves 1300 on the 4th stationary plane 1107
Angle with the 4th intersection 9004 is 65 ± 5 °, the folder of linear grooves 1300 and the 4th intersection 9004 on the 9th stationary plane 1207
Angle is 75 ± 5 °.Fig. 9 is from solid perpendicular to the schematic diagram from the 5th stationary plane 1108 and 1208 direction of the tenth stationary plane, the 5th
The a plurality of linear grooves 1300 determined on face 1108 are parallel to each other, and a plurality of linear grooves 1300 on the tenth stationary plane 1208 are put down each other
It goes, the angle of linear grooves 1300 and the 4th intersection 9004 on the 5th stationary plane 1108 is 70 ± 5 °, the tenth stationary plane 1208
On linear grooves 1300 and the angle of the 4th intersection 9004 be 80 ± 5 °.Due to the 5th stationary plane 1108 and the tenth stationary plane
1208 or so are connected, and knee joint femoral condyles part 1 is beloid, therefore linear grooves 1300 on the 5th stationary plane 1108 and the
There are intersections in the position close to condyle of femur front end for linear grooves 1300 on ten stationary planes 1208.
The opening width of linear grooves 1300 is 0.3-0.7mm, and the spacing between adjacent linear groove 1300 is 1.1-
1.9mm, the depth of linear grooves 1300 are 0.2-0.4mm.Figure 11 schematically shows the cross section wheel of linear grooves 1300
Position corresponding to wide and size.The cross-sectional profiles shape of linear grooves 1300 can be or substantially rectangular, inverted trapezoidal or
Other shapes.Obviously, linear boss 1400 is formed between adjacent linear groove 1300, linear boss 1400 also has porous knot
Structure.
As illustrated by figs. 12-13, when carrying out joint replacement, the medial femoral condyle and lateral femur condyle in distal femur 4 are needed
Upper cut-out New bone formation resected bone face respectively.Resected bone face includes the first bone being sequentially connected on medial femoral condyle
Excision face 4001a, the second resected bone face 4001b, third resected bone face 4001c, the 4th resected bone face 4001d and the 5th resected bone
Face 4001e, and the 6th resected bone face 4001f being sequentially connected on lateral femur condyle, the 7th resected bone face 4001g,
8th resected bone face 4001h, the 9th resected bone face 4001i and the tenth resected bone face 4001j.First resected bone face 4001a and
The contact of one stationary plane 1104, the second resected bone face 4001b contacts with the second stationary plane 1105, third resected bone face 4001c and the
The contact of three stationary planes 1106, the 4th resected bone face 4001d contacts with the 4th stationary plane 1107, the 5th resected bone face 4001e and the
The contact of five stationary planes 1108, the 6th stationary plane 1204 are contacted with the 6th resected bone face 4001f, the 7th stationary plane 1205 and the 7th bone
Excision face 4001g contact, the 8th resected bone face 4001h are contacted with the 8th stationary plane 1206, the 9th resected bone face 4001i and the 9th
Stationary plane 1207 contacts, and the tenth resected bone face 4001j is contacted with the tenth stationary plane 1208.
The bone trabecula exposed on resected bone face macroscopically has certain orientation, and entocondyle stationary plane 1103 and outer
Linear grooves 1300 on side condyle stationary plane 1203 comply with the trend of bone trabecula on resected bone face, the side to the rear of human femur under loading condyle
Bone trabecula is substantially parallel with sagittal plane, and the bone trabecula of side to the front tilts certain angle.Knee joint femoral condyles part 1 is implanted into people
After in vivo, component front-rear direction is identical as sagittal direction.Linear grooves on first stationary plane 1104 and the second stationary plane 1105
The bone trabecula trend in 1300 direction and human body medial femoral condyle side to the rear reaches unanimity.Third stationary plane the 1106, the 4th is fixed
The trend of face 1107 and the linear grooves 1300 on the 5th stationary plane 1108 and the bone trabecula of human body medial femoral condyle side to the front are walked
To reaching unanimity.The direction and lateral femur condyle of 6th stationary plane 1204 and the linear grooves 1300 on the 7th stationary plane 1205 are inclined
The bone trabecula trend of rear side reaches unanimity.It is linear on 8th stationary plane 1206, the 9th stationary plane 1207 and the tenth stationary plane 1208
The direction of groove 1300 and the bone trabecula trend of lateral femur condyle side to the front reach unanimity.
Bone trabecula is microcosmic upper in honeycomb or spatial network shape structure, this is similar to the pore structure on porous layer, and more
Porosity, aperture and thickness of aperture layer etc. also grow into porous layer for bone trabecula and provide good biomimetic environment.In addition, bone is small
When beam is laterally grown on condyle stationary plane 1103 and external condyle stationary plane 1203 inwardly, the bone trabecula of directionality arrangement can first to
Grown in the hole on closer linear boss 1400, while bone trabecula can also be grown into linear grooves 1300, and
It grows into the hole in linear grooves 1300.Linear orderly geometrical feature is still able to maintain in bone trabecula growth course,
It is disorganized to avoid bone trabecula.The ordered arrangement of bone trabecula is significant for bone endurance measurer.In addition, entocondyle
1203 concave-convex surface interphase structure of stationary plane 1103 and external condyle stationary plane, increases knee joint femoral condyles part 1 and human body stock
The contact area of bone distal end, is conducive in conjunction with distal femur, and improves the mechanical connection with distal femur, prevents knee from closing
It is mobile to save femoral condylar components 1.
According to another aspect of the present invention, a kind of full condyle articular system, including knee joint femoral condyles part are additionally provided
1, tibia support component 2 and liner component 3.Figure 14-15 shows the structure of liner component 3, and Figure 16-18 shows tibia support component
2 structure.It is public in the patent application of the Publication No. CN108992215A of applicant about the structure of liner component 3
It opens, details are not described herein again.Tibia support component 2 includes platform 2001, and the upper surface of platform 2001 is equipped with 2002 He of limited post of Y shape
The specific structure and tibia support component 2 of curved limited block 2003, limited post 2002 and limited block 2003 and liner component 3
Connection structure also discloses in the patent application of CN108992215A, also repeats no more herein.The lower surface of platform 2001 is set
The connector 2004 for thering is separate platform 2001 to extend.Connector 2004 includes left wing 2005 and right flank 2006, left wing 2005 and the right side
The wing 2006 connects, and the angle of left wing 2005 and right flank 2006 is 125-135 °.The lower surface of platform 2001 and connector 2004
Surface is designed with porous layer, and porous layer has cellular porosity, porosity 52-72%, and the range in aperture is 500-700 μm,
Porous layer with a thickness of 0.5-1.5mm.Tibia support component 2 is integrally formed using 3D printing technique, and porous layer is also to be beaten by 3D
Print technology is integrally formed on tibia support component 2.Porous structure can promote the hole on 2004 surface of spongiosa Bone Ingrowth connector
In gap.Linear grooves 1300 are additionally provided on the surface of connector 2004, specifically, linear grooves 1300 are arranged in 2005 He of left wing
The outer surface of right flank 2006.The extending direction of linear grooves 1300 is vertical with platform 2001.Linear grooves 1300 also use 3D printing
Technology forms, and is also in porous structure in linear grooves 1300.The opening width of the linear grooves 1300 on 2004 surface of connector is
0.3-0.7mm, the spacing between adjacent linear groove 1300 are 1.1-1.9mm, and the depth of linear grooves 1300 is 0.2-
0.4mm.Tibia support component 2 is connect with proximal tibia, and connector 2004 is inserted into the cancellous bone of shin bone, 2004 surface of connector
The extending direction of linear grooves 1300 and the bone trabecula of proximal tibia move towards close, promote shin bone and tibia support component 2 knot
It closes.In some embodiments, the lower surface of platform 2001 is additionally provided with nail 2007, when replacing tibia support component 2, nail 2007
Proximal tibia is hammered into, keeps tibia support component 2 fixed.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (9)
1. knee joint femoral condyles part (1), which is characterized in that entocondyle (1100) and external condyle including left and right settings
(1200), the entocondyle front end (1101) of entocondyle (1100) is integrated with the external condyle front end (1201) of external condyle (1200),
The entocondyle rear end (1102) of entocondyle (1100) is connect with the external condyle rear end (1202) of external condyle (1200), the entocondyle
(1100) middle section of middle section and external condyle (1200) is separated from each other, and the entocondyle (1100) is solid with entocondyle
Determine face (1103), the external condyle (1200) has external condyle stationary plane (1203), entocondyle stationary plane (1103) and external condyle
Porous layer is respectively equipped on stationary plane (1203), porous layer has cellular porosity, porosity 52-72%, the range in aperture
Be 500-700 μm, porous layer with a thickness of 0.5-1.5mm, knee joint femoral condyles part (1) using 3D printing technique one at
Type.
2. knee joint femoral condyles part (1) according to claim 1, which is characterized in that entocondyle stationary plane (1103) packet
Include the first stationary plane (1104), the second stationary plane (1105), third stationary plane (1106), the 4th stationary plane being sequentially connected
(1107) and the 5th stationary plane (1108), external condyle stationary plane (1203) include the 6th stationary plane (1204) being sequentially connected,
Seven stationary planes (1205), the 8th stationary plane (1206), the 9th stationary plane (1207) and the tenth stationary plane (1208), the first stationary plane
(1104) it is crossed to form the first intersection (9001) with the second stationary plane (1105), the second stationary plane (1105) and third stationary plane
(1106) it is crossed to form the second intersection (9002), third stationary plane (1106) and the 4th stationary plane (1107) are crossed to form third friendship
Line (9003), the 4th stationary plane (1107) and the 5th stationary plane (1108) form the 4th intersection (9004), the 6th stationary plane
(1204) and the intersection of the 7th stationary plane (1205) and the first intersection (9001) collinearly, the 7th stationary plane (1205) and the 8th fixed
The intersection and the second intersection (9002) in face (1206) collinearly, the intersection of the 8th stationary plane (1206) and the 9th stationary plane (1207) with
Collinearly, the intersection and the 4th intersection (9004) of the 9th stationary plane (1207) and the tenth stationary plane (1208) are altogether for third intersection (9003)
Line, the first intersection (9001), the second intersection (9002), third intersection (9003) and the 4th intersection (9004) are parallel to each other.
3. knee joint femoral condyles part (1) according to claim 2, which is characterized in that the first stationary plane (1104) and the
The angle of two stationary planes (1105) is 130-140 °, and the angle of the second stationary plane (1105) and third stationary plane (1106) is 130-
140 °, the angle of third stationary plane (1106) and the 4th stationary plane (1107) is 130-140 °, the 4th stationary plane (1107) and the
The angle of five stationary planes (1108) is 130-140 °, and the angle of the 6th stationary plane (1204) and the 7th stationary plane (1205) is 130-
140 °, the angle of the 7th stationary plane (1205) and the 8th stationary plane (1206) is 130-140 °, the 8th stationary plane (1206) and the
The angle of nine stationary planes (1207) is 130-140 °, and the angle of the 9th stationary plane (1207) and the tenth stationary plane (1208) is 130-
140°。
4. knee joint femoral condyles part (1) according to claim 2, which is characterized in that in entocondyle stationary plane (1103)
With multiple linear grooves (1300) are set on external condyle stationary plane (1203), the linear grooves (1300) on the first stationary plane (1104)
And the 6th linear grooves (1300) on stationary plane (1204) are all in 85-95 ° of angle, the second stationary plane with the first intersection (9001)
(1105) in the linear grooves (1300) and the 7th stationary plane (1205) on linear grooves (1300) all with the second intersection (9002)
In 85-95 ° of angle, the angle of linear grooves (1300) on third stationary plane (1106) and third intersection (9003) is 65 ±
5 °, the angle of linear grooves (1300) and third intersection (9003) on the 8th stationary plane (1206) is 75 ± 5 °, and the 4th is fixed
The angle of linear grooves (1300) and the 4th intersection (9004) on face (1107) is 65 ± 5 °, on the 9th stationary plane (1207)
The angle of linear grooves (1300) and the 4th intersection (9004) is 75 ± 5 °, the linear grooves on the 5th stationary plane (1108)
It (1300) is 70 ± 5 ° with the angle of the 4th intersection (9004), the linear grooves (1300) and the 4th on the tenth stationary plane (1208)
The angle of intersection (9004) is 80 ± 5 °.
5. knee joint femoral condyles part (1) according to claim 2, which is characterized in that the opening of linear grooves (1300)
Width is 0.3-0.7mm, and the spacing between adjacent linear groove (1300) is 1.1-1.9mm, and the depth of linear grooves 1300 is
0.2-0.4mm。
6. knee joint femoral condyles part (1) according to claim 2, which is characterized in that hang down on third stationary plane (1106)
The first column (1110) directly are equipped with, are vertically equipped with the second column (1210) on the 8th stationary plane (1206), the first column (1110) and second
Column (1210) is all in round estrade, and the surface of the first column (1110) is equipped with the first ridge rib (1111), and the first ridge rib (1111) is along the
The bus of one column (1110) extends, and the surface of the second column (1210) is equipped with the second ridge rib (1211), the second ridge rib (1211) along
The bus of second column (1210) extends.
7. full condyle articular system, which is characterized in that including knee joint femoral condyles part (1) described in any one of claims 1-6,
It further include tibia support component (2) and liner component (3).
8. full condyle articular system according to claim 7, which is characterized in that tibia support component (2) includes platform (2001),
The lower surface of platform (2001) is equipped with the connector (2004) extended far from platform (2001), the lower surface of platform (2001) and company
The surface of fitting (2004) is equipped with porous layer, and porous layer has cellular porosity, and the range of porosity 52-72%, aperture are
500-700 μm, porous layer with a thickness of 0.5-1.5mm, the tibia support component (2) is integrally formed using 3D printing technique.
9. full condyle articular system according to claim 7, which is characterized in that connector (2004) include left wing (2005) and
The surface of right flank (2006), left wing (2005) and right flank (2007) is equipped with linear grooves (1300), linear grooves (1300)
Extending direction is vertical with platform (2001), and the opening width of linear grooves (1300) is 0.3-0.7mm, adjacent linear groove
(1300) spacing between is 1.1-1.9mm, and the depth of linear grooves (1300) is 0.2-0.4mm.
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| CN201910106910.0A CN109620481A (en) | 2019-02-02 | 2019-02-02 | Knee joint femoral condyles part and the full condyle articular system for applying it |
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| CN201910106910.0A CN109620481A (en) | 2019-02-02 | 2019-02-02 | Knee joint femoral condyles part and the full condyle articular system for applying it |
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| JP2023511987A (en) * | 2020-10-30 | 2023-03-23 | 嘉思特医療器材（天津）股▲ふん▼有限公司 | Region-divided trabecular single-compartment tibial plateau of zirconium-niobium alloy with oxide layer and method of making same |
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| CN112296342B (en) * | 2020-10-30 | 2023-03-10 | 嘉思特华剑医疗器材(天津)有限公司 | Oxide layer-containing zirconium-niobium alloy partitioned trabecular single compartment femoral condyle and preparation method thereof |
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| JP7324374B2 (en) | 2020-10-30 | 2023-08-09 | 嘉思特医療器材（天津）股▲ふん▼有限公司 | Region-divided trabecular single-compartment tibial plateau of zirconium-niobium alloy with oxide layer and method of making same |
| JP7336597B2 (en) | 2020-10-30 | 2023-08-31 | 嘉思特医療器材（天津）股▲ふん▼有限公司 | Region-by-region trabecular femoral condyle prosthesis containing oxidized layer of zirconium-niobium alloy and manufacturing method thereof |
| EP4049629A4 (en) * | 2020-10-30 | 2023-11-15 | Just Medical Devices (Tianjin) Co., Ltd. | Oxide layer-containing zirconium-niobium alloy partitioned bone trabecula femoral condyle prosthesis and preparation method |
| CN112294499B (en) * | 2020-10-30 | 2024-04-09 | 嘉思特医疗器材(天津)股份有限公司 | Oxide layer-containing zirconium-niobium alloy zoned bone small Liang Gugu condyle prosthesis and preparation method thereof |
| CN112570718A (en) * | 2020-11-13 | 2021-03-30 | 天衍医疗器材有限公司 | Tibial plateau and preparation method thereof |
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