CN107280813A - Acetabular component prosthese - Google Patents
Acetabular component prosthese Download PDFInfo
- Publication number
- CN107280813A CN107280813A CN201710587997.9A CN201710587997A CN107280813A CN 107280813 A CN107280813 A CN 107280813A CN 201710587997 A CN201710587997 A CN 201710587997A CN 107280813 A CN107280813 A CN 107280813A
- Authority
- CN
- China
- Prior art keywords
- microporous layers
- acetabular
- micropore portion
- micropore
- compact part
- 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.)
- Pending
Links
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 238000010146 3D printing Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims description 27
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000002639 bone cement Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 230000002052 anaphylactic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000011799 hole material Substances 0.000 description 48
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 15
- 239000012634 fragment Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 206010020751 Hypersensitivity Diseases 0.000 description 3
- 208000030961 allergic reaction Diseases 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 108010048734 sclerotin Proteins 0.000 description 3
- 101000911772 Homo sapiens Hsc70-interacting protein Proteins 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2/30942—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
-
- 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
- A61F2002/30242—Three-dimensional shapes spherical
- A61F2002/30245—Partial spheres
-
- 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
- A61F2002/30784—Plurality of holes
-
- 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]
-
- 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
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Manufacturing & Machinery (AREA)
- Prostheses (AREA)
Abstract
The invention discloses acetabular component prosthese.The acetabular component prosthese includes acetabular cup, acetabular cup is molded using metal dust 3D printing, acetabular cup includes the first matter compact part and the first micropore portion, first micropore portion is coated on the outside of the first matter compact part, first micropore portion sequentially forms the first microporous layers, the second microporous layers and the 3rd microporous layers that porosity becomes larger from inside to outside, acetabular cup is hemispherical dome structure, first matter compact part has been internally formed cavity, acetabular cup hemisphere face is provided with first through hole, first matter compact part end face is provided with the second through hole, and the first matter compact part end face also circumference is placed with the second through hole.There is the present invention bone for keeping good engagement to grow into, and the intensity of binding site is high, and cleaning and sterilizing is convenient, and human body is without anaphylactoid effect.
Description
Technical field
The present invention relates to a kind of prosthese of similar human body Bones and joints, more particularly to acetabular component prosthese.
Background technology
It is a kind of similar that artificial hip joint replacing refers to be made of biocompatibility and the metal material of satisfactory mechanical property
The prosthese of human body Bones and joints, the articular surface for being destroyed prosthetic replacement by disease or injury using operation method, excision disease
Stove, removes pain, recovers movable and original function in joint.
In acetabular component, acetabular cup, the first voussoir, acetabular bone reinforcement block and the second voussoir are generally included, material is usually
Metal material, manufacture method is to utilize metal dust rapid shaping, and to facilitate Bone Ingrowth, product is complete opening gap or individual layer hole material
Material, individual layer porous material is combined using matter compact part and individual layer space part, and the defect of above material is：First, cleaning inconvenience；Its
Two, it is possible to create metal fragment, such as enter human body, allergic reaction may be produced；3rd, complete opening gap material or individual layer hole material
Expect the intensity band to product to influence.
The content of the invention
One or more in order to what is solved the above problems, the invention provides acetabular component prosthese.
According to an aspect of the present invention, the acetabular component prosthese includes acetabular cup, and acetabular cup is beaten using metal dust 3D
Type is printed as, acetabular cup includes the first matter compact part and the first micropore portion, and the first micropore portion is coated on the outside of the first matter compact part, and first is micro-
Hole portion sequentially forms the first microporous layers, the second microporous layers and the 3rd microporous layers that porosity becomes larger from inside to outside, and the 3rd is micro-
The acetabular fossa contact of aperture layer and human body, acetabular cup is hemispherical dome structure, and the first matter compact part has been internally formed cavity, acetabular cup hemisphere
Face is provided with first through hole, and the first matter compact part end face is provided with groove and the second through hole, and the first matter compact part end face also circumference is placed with
Groove.
It is further described that also including acetabular bone reinforcement block, acetabular bone reinforcement block is molded using metal dust 3D printing, and acetabular bone is reinforced
Block includes the 3rd matter compact part and the 3rd micropore portion, and the 3rd micropore portion is coated on the outside of the 3rd matter compact part, and the 3rd micropore portion is by introversion
The 7th microporous layers, the 8th microporous layers and the 9th microporous layers that porosity becomes larger are sequentially formed outside, acetabular bone reinforcement block side is
Concave arc end, concave arc end is connected with the 3rd microporous layers.
It is further described that also including the second voussoir, the second voussoir is molded using metal dust 3D printing, and the second voussoir includes
4th matter compact part and the 4th micropore portion, the 4th micropore portion are coated on the outside of the 4th matter compact part, and the 4th micropore portion is from inside to outside successively
Form porosity the tenth microporous layers, the 11st microporous layers and the 12nd microporous layers that become larger, the second voussoir is thickness from one
Side is to opposite side gradually thinning wedge, and the second voussoir is provided with fifth hole, and acetabular bone reinforcement block lateral surface is provided with away from concave arc end
Fourth hole, fifth hole and fourth hole are connected by screw or bone cement.
It is further described that the porosity of the first microporous layers, the 7th microporous layers and the tenth microporous layers is 40%, the second micropore
The porosity of layer, the 8th microporous layers and the 11st microporous layers is 60%, the 3rd microporous layers, the 9th microporous layers and the 12nd micropore
The porosity of layer is 80%.Its advantage is：The porosity of 3rd microporous layers, the 9th microporous layers and the 12nd microporous layers
It is high, it is ensured that prosthese and acetabular fossa are preferably combined, and the porosity of the first microporous layers, the 7th microporous layers and the tenth microporous layers is low,
It ensure that to combine that there is higher mechanical property between micropore portion and matter compact part.
It is further described that the parameter in the first micropore portion, the 3rd micropore portion and the 4th micropore portion：Thickness is 1.2-1.8mm,
Micropore size is that 0.25-0.5mm its advantage is：The parameter values ensure that the adhesion strength ＞ 25MPa in micropore portion, both protect
The joint portion demonstrate,proved between micropore portion and matter compact part has higher mechanical property, and ensure that the intensity of prosthese, while smaller
Thickness, the generation of metal fragment is reduced again, facilitates clean and maintenance.
It is further described that the first micropore portion, the 3rd micropore portion and the 4th micropore portion thickness are 1.8mm, the first microporous layers,
Second microporous layers, the 3rd microporous layers, the 7th microporous layers, the 8th microporous layers, the 9th microporous layers, the tenth microporous layers, the 11st micropore
Layer and the thickness of the 12nd microporous layers are 0.6mm.Its advantage is：Each layer is uniformly distributed, reduce micropore portion in thickness
The stress distribution spent on section, each layer joint portion maximum stress value is low, reduces fractureing or ftractureing for joint portion.
It is further described that also including the first voussoir, the first voussoir is molded using metal dust 3D printing, and the first voussoir includes
Second matter compact part and the second micropore portion, the second micropore portion are coated on the outside of the second matter compact part, and the second micropore portion is from inside to outside successively
Form the 4th microporous layers, the 5th microporous layers and the 6th microporous layers that porosity becomes larger, the second matter compact part and the 3rd microporous layers
Be connected, the first voussoir be curved-surface structure, the first voussoir be provided with waist-shaped hole, waist-shaped hole both sides be provided with third through-hole, third through-hole,
Waist-shaped hole is connected with first through hole by screw or bone cement respectively.
It is further described that the porosity equal 40% of the 4th microporous layers, the 5th micropore layer porosity is 60%, the 6th microporous layers
Porosity be 80%.Its advantage is：6th micropore layer porosity is high, it is ensured that prosthese and acetabular fossa are preferably combined,
The porosity of 4th microporous layers is low, it is ensured that being combined between micropore portion and matter compact part has higher mechanical property.
It is further described that the parameter in the second micropore portion：Thickness is 1.2-1.8mm, and micropore size is 0.25-0.5mm.Its
Beneficial effect is：The parameter values ensure that the adhesion strength ＞ 25MPa in micropore portion, both ensure that between micropore portion and matter compact part
Joint portion there is higher mechanical property, and the intensity of prosthese is ensure that, while less thickness, reduces metal fragment again
Generation, facilitate clean and maintenance.
It is further described that the second micropore portion thickness is 1.8mm, the 4th microporous layers, the 5th microporous layers and the 6th microporous layers
Thickness be 0.6mm.Its advantage is：Each layer is uniformly distributed, and reduces the answering on thickness section in the second micropore portion
Power is distributed, and each layer joint portion maximum stress value is low, reduces fractureing or ftractureing for joint portion.
The position contacted in acetabular component prosthese of the present invention with human body bone is equipped with microcellular structure, the first of such as acetabular cup
Micropore portion, the second micropore portion of the first voussoir, the 3rd micropore portion and the 4th micropore portion of the second voussoir of acetabular bone reinforcement block, it is above-mentioned
Microcellular structure is set to three layers, and its porosity becomes big successively, and the interior layer porosity that it neutralizes the combination of matter compact part is minimum, its advantage
It is：First, microcellular structure porosity becomes larger from inside to outside, more agree with the distribution of human hip sclerotin density, acetabular component
Closer to human body acetabular bone, human body is easily accepted by, and rejection is low；Second, the acetabular fossa contact site porosity of prosthese and human body
Highest, can keep good bone to engage and grow into；Third, microcellular structure porosity becomes larger from inside to outside, then borrowed structure is strong
Degree even variation, i.e. prosthese stress is smaller, and microcellular structure and matter compact part contact site porosity are minimum, and binding site material is tight
It is close, it is ensured that binding site has higher-strength, it is easy to the machining of prosthese；Fourth, microcellular structure gross thickness is smaller, thickness
Only 1.2-1.8mm, relative to complete opening gap prosthese, facilitates cleaning and sterilizing；Fifth, because the thickness of pore structure is greatly decreased,
And hole is gradually decreased from outside to inside, material matter further is close, when processing hole or pedicle screw, produces metal fragment easily clear
Wash so that the big maximum probability reduction of metal fragment probability remained in prosthese, reduce the allergic reaction that metal fragment produces human body；
Sixth, 3D printing technique can accomplish higher precision and very high complexity so that the micropore on microcellular structure is uniformly distributed,
Bone uptake thereon can be more improved, and then improves the service efficiency of the component.
Brief description of the drawings
Fig. 1 is the structural representation of the acetabular bone cup device of an embodiment of the present invention；
Fig. 2 is the sectional view of acetabular cup shown in Fig. 1；
Fig. 3 is the acetabular cup of an embodiment of the present invention and the structural representation of the first voussoir connected devices；
Fig. 4 is the structural representation of the first voussoir；
Fig. 5 is the sectional view of the first voussoir shown in Fig. 4；
Fig. 6 is the graphics one of the acetabular cup, acetabular bone reinforcement block and the second voussoir connected devices of an embodiment of the present invention；
Fig. 7 is the structural representation of the acetabular cup, acetabular bone reinforcement block and the second voussoir connected devices of an embodiment of the present invention
Figure；
Fig. 8 is the structural representation of acetabular bone reinforcement block；
Fig. 9 is the sectional view of acetabular bone reinforcement block shown in Fig. 8；
Figure 10 is the structural representation of the second voussoir；
Figure 11 is the sectional view of the second voussoir shown in Figure 10；
Figure 12 is the structural representation of liner；
Acetabular cup 1, first through hole 101, the second through hole 102, cavity 103, groove 104, the first matter compact part 110, first is micro-
Hole portion 120, the first microporous layers 121, the second microporous layers 122, the 3rd microporous layers 123, the first voussoir 2, third through-hole 201, waist type
Hole 202, the second micropore portion 210, the 6th microporous layers 211, the 5th microporous layers 212, the 4th microporous layers 213, the second matter compact part 220,
Acetabular bone reinforcement block 3, fourth hole 301, the 3rd micropore portion 310, the 9th microporous layers 311, the 8th microporous layers 312, the 7th microporous layers
313, matter compact part 320, concave arc end 10, the second voussoir 4, fifth hole 401, the 4th micropore portion 410, the 12nd microporous layers 411, the
11 microporous layers 412, the tenth microporous layers 413, the 4th matter compact part 420, liner 5, projection 501.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 to Figure 12 schematically shows the acetabular component prosthese according to one embodiment of the present invention.As schemed
Show, the device includes acetabular cup, acetabular cup 1 includes the He of the first matter compact part 110 using metal dust 3D printing shaping, acetabular cup 1
First micropore portion 120, the first micropore portion 120 is coated on the outside of the first matter compact part 110, and the first micropore portion 120 is from inside to outside successively
Form the first microporous layers 121, the second microporous layers 122 and the 3rd microporous layers 123 that porosity becomes larger, the 3rd microporous layers 123
Directly contacted with the acetabular fossa of human body, acetabular cup 1 is hemispherical dome structure, the first matter compact part 110 has been internally formed cavity 103, chamber
Body 103 mutually agrees with plastic inner lining, and liner can be easily implanted into, and is engaged with artificial thigh bone, on the hemisphere face of acetabular cup 1
Provided with first through hole 101, the end face of the first matter compact part 110 is provided with the second through hole 102, when being implanted into human body acetabular bone, first through hole 101
It is used to screw in cancellous bone screw with the second through hole 102, preferably, the quantity of first through hole 101 is three to 12, the second through hole
102 quantity are six to ten, and the appropriate through hole 102 of first through hole 101 and second both ensure that the intensity of of acetabular cup 1 itself, again
The bonding strength between acetabular cup 1 and acetabular fossa is ensure that, it is broken to produce metal when also reducing machining through hole and rigging screw
Consider the probability produced to be worth doing, the end face of the first matter compact part 110 also circumferential row has a groove 104, preferably, groove 104 is crescent.As schemed
Shown in 12, because the circumferencial direction of plastic inner lining 5 is provided with corresponding projection 501, so when assembling groove 104 and plastic inner lining 5, it is recessed
Groove 104 and projection 501 are engaged, and effectively prevent the rotation of liner 5.
It is further described that also including acetabular bone reinforcement block 3, acetabular bone reinforcement block 3 is added using metal dust 3D printing shaping, acetabular bone
Gu block 3 includes the 3rd matter compact part 320 and the 3rd micropore portion 310, the 3rd micropore portion 310 is coated on the outside of the 3rd matter compact part 320, the
Three micropore portions 310 sequentially form the 7th microporous layers 313, the 8th microporous layers 312 and the 9th that porosity becomes larger from inside to outside
The acetabular fossa of microporous layers 311, the 9th microporous layers 311 and human body is directly contacted, preferably, and the lateral surface of the 3rd micropore portion 310 is song
Face, the lateral surface of the 3rd matter compact part 320 is plane, so enables to acetabular bone reinforcement block 3 preferably to be fitted with tissue, is promoted
Bone uptake, the side of acetabular bone reinforcement block 3 is concave arc end 10, and concave arc end 10 can be connected well with the 3rd microporous layers 310.
It is further described that also including the second voussoir 4, the second voussoir 4 is using metal dust 3D printing shaping, the second voussoir 4
Including the 4th matter compact part 420 and the 4th micropore portion 410, the 4th micropore portion 410 is coated on the outside of the 4th matter compact part 420, and the 4th is micro-
Hole portion 410 sequentially forms the tenth microporous layers 413, the 11st microporous layers 412 and the 12nd that porosity becomes larger from inside to outside
The sclerotin of the microporous layers 411 of microporous layers the 411, the 12nd and human body is directly contacted, the second voussoir 4 be thickness from side to opposite side by
The thin wedge of gradual change, the second voussoir 4 is provided with 4 fifth holes, and the lateral surface of acetabular bone reinforcement block 3 is away from concave arc end 10 provided with four the
Four through holes 301, fifth hole 401 is connected with fourth hole 301 by screw or bone cement.
It is further described that the 3D printing shaping work of acetabular cup 1, the voussoir 4 of acetabular bone reinforcement block 3 and second using titanium alloy powder
Skill is produced, and the porosity of the first microporous layers 121, the 7th microporous layers 313 and the tenth microporous layers 413 is 40%, the second microporous layers
122nd, the porosity of the 8th microporous layers 312 and the 11st microporous layers 412 is 60%, the 3rd microporous layers 123, the 9th microporous layers
The porosity of 311 and the 12nd microporous layers 411 is 80%.3rd microporous layers 123, the 9th microporous layers 311 and the 12nd micropore
The porosity of layer 411 is high, it is ensured that prosthese and acetabular fossa are preferably combined, the first microporous layers 121, the 7th microporous layers 313 and the
The porosity of ten microporous layers 413 is low, it is ensured that being combined between micropore portion and matter compact part has higher mechanical property.
It is further described that the parameter in the first micropore portion 120, the 3rd micropore portion 310 and the 4th micropore portion 410：Thickness is
1.2-1.8mm, micropore size is 0.35-0.5mm.The parameter values ensure that the adhesion strength in micropore portion is more than 25MPa, both protect
The joint portion demonstrate,proved between micropore portion and matter compact part has higher mechanical property, and ensure that the intensity of prosthese, while smaller
Thickness, the generation of metal fragment is reduced again, facilitates clean and maintenance.
It is further described that the first micropore portion 120, the 3rd micropore portion 310 and the thickness of the 4th micropore portion 410 are 1.8mm, the
One microporous layers 121, the second microporous layers 122, the 3rd microporous layers 123, the 7th microporous layers 313, the 8th microporous layers 312, the 9th micropore
The thickness of the 311, the tenth microporous layers 413 of layer, the 11st microporous layers 412 and the 12nd microporous layers 411 is 0.6mm.Each layer is uniform
Distribution, reduces the stress distribution on thickness section in each micropore portion, each layer joint portion maximum stress value is low, reduces combination
Portion fractureing or ftractureing.
It is further described that also including the first voussoir 2, the first voussoir 2 is using metal dust 3D printing shaping, the first voussoir 2
Including the second matter compact part 220 and the second micropore portion 210, the second micropore portion 210 is coated on the outside of the second matter compact part 220, and second is micro-
Hole portion 210 sequentially forms the 4th microporous layers 213, the 5th microporous layers 212 and the 6th micropore that porosity becomes larger from inside to outside
Layer 211, the first voussoir 2 is curved-surface structure, as shown in Figure 3 and Figure 4, and the first voussoir 2 is in a quarter spherical structure, may be used also certainly
To be other spherical structures.First voussoir 2 is provided with waist-shaped hole 202, and the both sides of waist-shaped hole 202 are provided with third through-hole 201, third through-hole
201st, waist-shaped hole 202 and first through hole 101 are connected by screw or bone cement, and thus waist-shaped hole 202 can further improve whole
Initial combination between individual prosthese and human body bone is more firm.
It is further described that the porosity of the 4th microporous layers 213 is 40%, the porosity of the 5th microporous layers 212 is 60%, the
The porosity of six microporous layers 211 is 80%.The porosity of 6th microporous layers 211 is high, it is ensured that prosthese and acetabular fossa are preferably tied
Close, the porosity of the 4th microporous layers 213 is low for 40% porosity, it is ensured that combined between micropore portion and matter compact part with higher
Mechanical property.
It is further described that the parameter in the second micropore portion 210：Thickness is 1.2-1.8mm, and micropore size is 0.25-
0.5mm.The parameter values ensure that micropore portion adhesion strength is more than 25MPa, both ensure that the knot between micropore portion and matter compact part
Conjunction portion has higher mechanical property, and ensure that the intensity of prosthese, while less thickness, reduces the production of metal fragment again
It is raw, facilitate clean and maintenance.
It is further described that the thickness of the second micropore portion 210 is 1.8mm, the 4th microporous layers 213, the 5th microporous layers 212 and the 6th
The thickness of microporous layers 211 is 0.6mm.Each layer is uniformly distributed, and reduces the stress on thickness section point in the second micropore portion
Cloth, each layer joint portion maximum stress value is low, reduces fractureing or ftractureing for joint portion.
The present invention determines the composition of acetabular component prosthese according to the bony defect situation of patient, is divided into six kinds of situations, the
A kind of situation is is made up of acetabular cup 1, and the microcellular structure part of acetabular cup and the acetabular fossa of human body are directly contacted；Second of situation
To be made up of the voussoir 2 of acetabular cup 1 and first；The third situation is to be made up of acetabular cup 1 and acetabular bone reinforcement block 3；4th kind of situation
To be made up of acetabular cup 1, the first voussoir 2 and acetabular bone reinforcement block 3；5th kind is by acetabular cup 1, the wedge of acetabular bone reinforcement block 3 and second
Block 4 is constituted；6th kind is to be made up of acetabular cup 1, the first voussoir 2, the voussoir 4 of acetabular bone reinforcement block 3 and second.
The position of acetabular component prosthese and human body bone contact of the present invention is equipped with the first of microcellular structure, such as acetabular cup 1
Micropore portion 120, the second micropore portion 210 of the first voussoir 2, the of the 3rd micropore portion 310 of acetabular bone reinforcement block 3 and the second voussoir 4
Four micropore portions 410, above-mentioned microcellular structure is set to three layers, and inside is the close structure of matter, the porosity of microcellular structure from inside to outside according to
Secondary to become big, microcellular structure and matter compact part junction porosity are minimum, and its advantage is：First, the porosity of microcellular structure is certainly introversive
Become larger outside, more agree with the distribution of human hip sclerotin density, acetabular component is easily accepted by closer to human body acetabular bone, human body,
Rejection is low；Second, the acetabular fossa contact site porosity of prosthese and human body is high, good bone can be kept to engage and grown into；Its
Three, microcellular structure porosity becomes larger from inside to outside, then borrowed structure even intensity changes, i.e., the prosthese stress is smaller, micro-
Pore structure and matter compact part contact site porosity are low, and binding site material is close, it is ensured that binding site has higher-strength, just
In the machining of prosthese；Fourth, microcellular structure gross thickness is smaller, thickness only has 1.2-1.8mm, relative to complete opening gap prosthese,
Facilitate cleaning and sterilizing；Fifth, because the thickness of pore structure is greatly decreased, and hole is gradually decreased from outside to inside, material is further
Matter is close, when processing hole or pedicle screw, produces metal fragment and easily cleans so that the metal fragment probability remained in prosthese is big
Big reduction, reduces the allergic reaction that metal fragment produces human body；Sixth, 3D printing technique can accomplish higher precision and very high
Complexity so that the micropore on microcellular structure is uniformly distributed, and can more improve bone uptake thereon, and then improve the component
Service efficiency.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (10)
1. acetabular component prosthese, it is characterised in that including acetabular cup (1), the acetabular cup (1) using metal dust 3D printing into
Type, the acetabular cup (1) includes the first matter compact part (110) and the first micropore portion (120), the first micropore portion (120) cladding
On the outside of the first matter compact part (110), the first micropore portion (120) sequentially forms what porosity became larger from inside to outside
First microporous layers (121), the second microporous layers (122) and the 3rd microporous layers (123), the acetabular cup (1) are hemispherical dome structure, institute
State the first matter compact part (1) and be internally formed cavity (103), acetabular cup (1) hemisphere face is provided with first through hole (101), institute
First matter compact part (110) end face is stated provided with the second through hole (102), the first matter compact part (110) end face also circumference is placed with recessed
Groove (104).
2. acetabular component prosthese according to claim 1, it is characterised in that also including acetabular bone reinforcement block (3), the acetabular bone
Reinforcement block (3) is using metal dust 3D printing shaping, and the acetabular bone reinforcement block (3) is micro- including the 3rd matter compact part (320) and the 3rd
Hole portion (310), the 3rd micropore portion (310) is coated on the outside of the 3rd matter compact part (320), the 3rd micropore portion
(310) the 7th microporous layers (313), the 8th microporous layers (312) that porosity becomes larger are sequentially formed from inside to outside and the 9th micro-
Aperture layer (311), one end of the acetabular bone reinforcement block (3) is concave arc end (10), the concave arc end (10) and the 3rd microporous layers
(123) it is connected.
3. acetabular component prosthese according to claim 2, it is characterised in that also including the second voussoir (4), second wedge
Block (4) includes the 4th matter compact part (420) and the 4th micropore portion using metal dust 3D printing shaping, second voussoir (4)
(410), the 4th micropore portion (410) is coated on the outside of the 4th matter compact part (420), the 4th micropore portion (410) by
The tenth microporous layers (413), the 11st microporous layers (412) and the 12nd microporous layers that porosity becomes larger are sequentially formed from inside to outside
(411), second voussoir (4) is thickness wedge gradually thinning from side to opposite side, and second voussoir (4) is provided with the
Five through holes (401), acetabular bone reinforcement block (3) lateral surface is provided with fourth hole (301), described the away from the concave arc end (10)
Five through holes (401) are connected with the fourth hole (301) by screw or bone cement.
4. acetabular component prosthese according to claim 3, it is characterised in that first microporous layers (121), the described 7th
Microporous layers (313) and the porosity of the tenth microporous layers (413) are 40%, second microporous layers (122), the described 8th
Microporous layers (312) and the porosity of the 11st microporous layers (412) are 60%, the 3rd microporous layers (123), described
Nine microporous layers (311) and the porosity of the 12nd microporous layers (411) are 80%.
5. acetabular component prosthese according to claim 3, it is characterised in that the first micropore portion (120), the described 3rd
Micropore portion (310) and the parameter of the 4th micropore portion (410)：Thickness is 1.2-1.8mm, and micropore size is 0.25-
0.5mm。
6. acetabular component prosthese according to claim 3, it is characterised in that the first micropore portion (120), the described 3rd
Micropore portion (310) and the 4th micropore portion (410) thickness are 1.8mm, first microporous layers (121), the second microporous layers
(122), the 3rd microporous layers (123), the 7th microporous layers (313), the 8th microporous layers (312), the 9th microporous layers (311), the tenth micro-
The thickness of aperture layer (413), the 11st microporous layers (412) and the 12nd microporous layers (411) is 0.6mm.
7. acetabular component prosthese according to claim 1, it is characterised in that also including the first voussoir (2), the first wedge
Block (2) includes the second matter compact part (220) and the second micropore portion using metal dust 3D printing shaping, first voussoir (2)
(210), the second micropore portion (210) is coated on the outside of the second matter compact part (220), the second micropore portion (210) by
The 4th microporous layers (213), the 5th microporous layers (212) and the 6th microporous layers that porosity becomes larger are sequentially formed from inside to outside
(211), first voussoir (2) is curved-surface structure, and first voussoir (2) is provided with waist-shaped hole (202), the waist-shaped hole
(203) both sides are provided with third through-hole (201), and the third through-hole (201), the waist-shaped hole (202) are logical with described first respectively
Hole (101) is connected by screw or bone cement.
8. acetabular component prosthese according to claim 7, it is characterised in that the porosity of the 4th microporous layers (213)
For 40%, the porosity of the 5th microporous layers (212) is 60%, and the porosity of the 6th microporous layers (211) is 80%.
9. acetabular component prosthese according to claim 7, it is characterised in that the parameter of the second micropore portion (210) is such as
Under：Thickness is 1.2-1.8mm, and micropore size is 0.25-0.5mm.
10. acetabular component prosthese according to claim 7, it is characterised in that the second micropore portion (210) thickness is
1.8mm, the 4th microporous layers (213), the 5th microporous layers (212) and the 6th microporous layers (211) thickness are 0.6mm.
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| CN201710587997.9A CN107280813A (en) | 2017-07-18 | 2017-07-18 | Acetabular component prosthese |
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| CN108524061A (en) * | 2018-05-11 | 2018-09-14 | 中山大学附属第医院 | Combined type semi-pelvic prosthesis |
| CN109172044A (en) * | 2018-07-24 | 2019-01-11 | 西安交通大学 | A kind of degradable gradient-porosity mammary gland bracket |
| CN111281616A (en) * | 2020-03-11 | 2020-06-16 | 北京市春立正达医疗器械股份有限公司 | Full-hip metal cup prosthesis and manufacturing method thereof |
| CN111529135A (en) * | 2020-05-22 | 2020-08-14 | 北京科仪邦恩医疗器械科技有限公司 | Acetabular cup and acetabular prosthesis system |
| WO2021135927A1 (en) * | 2019-12-30 | 2021-07-08 | 骄英医疗器械(上海)有限公司 | Connection structure of porous surface structure and substrate, preparation method for connection structure, and prosthesis |
| CN115887073A (en) * | 2023-02-10 | 2023-04-04 | 浙江大学高端装备研究院 | A design method of hierarchical porous structure of acetabular cup and acetabular cup |
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Application publication date: 20171024 |