CN106913402B - A kind of modular hip prosthesis - Google Patents
A kind of modular hip prosthesis Download PDFInfo
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- CN106913402B CN106913402B CN201510989896.5A CN201510989896A CN106913402B CN 106913402 B CN106913402 B CN 106913402B CN 201510989896 A CN201510989896 A CN 201510989896A CN 106913402 B CN106913402 B CN 106913402B
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- 239000011799 hole material Substances 0.000 claims abstract description 106
- 210000000689 upper leg Anatomy 0.000 claims abstract description 41
- 239000011229 interlayer Substances 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims description 115
- 239000000463 material Substances 0.000 claims description 59
- 238000009827 uniform distribution Methods 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 230000037237 body shape Effects 0.000 claims 1
- 238000002513 implantation Methods 0.000 abstract description 8
- 238000011049 filling Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 210000001624 hip Anatomy 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 8
- 210000001519 tissue Anatomy 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 229910052715 tantalum Inorganic materials 0.000 description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 6
- 229920002472 Starch Polymers 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002808 molecular sieve Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 5
- 239000008107 starch Substances 0.000 description 5
- 235000019698 starch Nutrition 0.000 description 5
- 230000003592 biomimetic effect Effects 0.000 description 3
- 230000010478 bone regeneration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002159 nanocrystal Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 210000002758 humerus Anatomy 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000034657 Convalescence Diseases 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 102000016943 Muramidase Human genes 0.000 description 1
- 108010014251 Muramidase Proteins 0.000 description 1
- 108010062010 N-Acetylmuramoyl-L-alanine Amidase Proteins 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007857 degradation product Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003102 growth factor Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229960000274 lysozyme Drugs 0.000 description 1
- 235000010335 lysozyme Nutrition 0.000 description 1
- 239000004325 lysozyme Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000017854 proteolysis Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of modular hip prosthesis.It includes femoral stem (1) and neck of femur (2)；The lower end of the neck of femur (2) consists of two parts, and a portion is resilient barb (3), and another part is column (4), and is equipped with spaced slot (5) between resilient barb (3) and column (4)；L shape through-hole (6) is provided on the head of the femoral stem (1)；The lower part of the neck of femur (2) is inserted into the L shape through-hole (6), and resilient barb (3) hooks in the transverse holes (8) being stuck on L shape through-hole (6)；It is provided in the middle part of the femoral stem (1) through shank body two sides using filling interlayer (10) made of multilevel hole material.The connective stability and biocompatibility of structure of the invention are higher, convenient for implantation installation operation.
Description
Technical field
The present invention relates to human synovial displacement more particularly to a kind of modular hip prosthesis
Background technique
Currently, existing hip joint implantation prosthese is mostly unitary design, although this structure has molding easy to process,
The advantages that being easily installed, but because of the effect of the factors such as unbalance stress in applying, if being broken such as occur in individual sites in structure
The situations such as neck fracture will then will lead to the failure of its structure allomeric function, this undoubtedly causes huge waste.In addition, existing
Hip joint implantation prosthese there is also connective stability between tissue is not high, easily loosen, fall off after implantation, bio-compatible
General character problem, the these problems such as property is poor, and tissue is also easy to produce repulsion, and service life is shorter rely on merely optimizing structure design
It is difficult to whole realizations.
Porous material has the characteristics such as relative density is low, specific strength is high, specific surface area is high, light-weight, good penetrability, is changing
The numerous areas such as work, medicine have a wide range of applications.In the porous material, multilevel hole material is obtained due to its unique performance
More and more concerns.Multilevel hole material has the advantage in holes at different levels simultaneously, and there is the material in single hole not have simultaneously
Standby advantage the, for example, mesoporous-micropore (hole (aperture 2nm < < 50nm) of macropore (aperture > 50nm)-with three-dimensional order
Diameter < 2nm) structure molecular sieve, combine multi-stage artery structure and both the nanocrystalline advantage of molecular sieve, impart molecular sieve
More open three-dimensional open-framework, while nano molecular sieve crystal substantially reduces mass transfer path, effectively improves institute
Obtain the materialization activity of molecular sieve；SiO with hierarchical structure mesopore-macropore2Material can be used as immobilized biomolecule, such as immobilized
The guest materials of lysozyme has the very high rate of adsorption and very big enzyme supported quantity.However, in current artificial joint prosthesis
The porous structure of use is mostly single Porous materials, and the report about selection multilevel hole material is even more extremely limited.This may
Mainly due to existing porous material itself there is also along with porosity raising, structural mechanics intensity can it is significant under
Drop, therefore porosity is generally relatively low, connectivity is lower, is unfavorable for the efficient exchange of substance in tissue, biocompatibility is not
It is good, it is self-possessed heavier, postoperative human feeling is bad and gap is unevenly distributed causes mechanical strength, elasticity modulus etc. unevenly to divide
Cloth, the defects of causing hidden danger of quality.As CN201210185031 discloses a kind of the bionical of multistage (micrometer/nanometer) pore structure
The preparation method of artificial bone, however the three-dimensional multistage pore structure obtained using this method, due to the randomness of its pore structure, are not advised
Then property is not still able to satisfy the functional requirement of biomimetic artificial bone.
In addition, needing material itself uniform, i.e. pore size, hole as the multilevel hole material for being applied to biomimetic artificial bone
Be evenly distributed so that performance uniformity, but in fact, have many multilevel hole materials that the requirement, uniformity is not achieved
It is insufficient；In spite of material call oneself and reached higher uniformity, but its uniformity is still the uniformity under large volume scale, if
Measurement comparison is carried out with small size scale, for example takes up an official post in material and takes said three-dimensional body of the muti-piece volume no more than one cubic centimetre, point
Do not survey its quality, degree of irregularity difference is still very big, therefore cause multilevel hole material various performances such as mechanical strength,
Elasticity modulus etc. is uneven, to seriously affect its function.
Summary of the invention
The purpose of the present invention is to provide a kind of modular hip prosthesis, the connective stability and biocompatibility of structure compared with
Height, convenient for implantation installation operation.
The purpose of the present invention is achieved through the following technical solutions:
A kind of modular hip prosthesis, it includes femoral stem and neck of femur, it is characterised in that: the lower part end of the neck of femur
End consists of two parts, and a portion is resilient barb, and another part is column, and sets between resilient barb and column
There is spaced slot；L shape through-hole is provided on the head of the femoral stem；The lower part of the neck of femur is inserted into the L shape through-hole
It is interior, and resilient barb hook is stuck in the transverse holes on L shape through-hole；Adopting through shank body two sides is provided in the middle part of the femoral stem
Interlayer is filled made of multilevel hole material.
To prevent the relative motion between femoral stem and femur, and the sinking of femoral stem after implantation is prevented, and made it combine
Stronger, the upper side close to above-mentioned neck of femur is provided with tapered protrusion in the middle part of above-mentioned femoral stem.
For convenience of the installation positioning operation of product in operation implementation process, the head upper end of above-mentioned femoral stem has additional positioning
Hole.
To meet different patient personalized demands, to reach best installation site requirement, the lower part of above-mentioned neck of femur is whole
Body is in positive bar shape, and top is set as biasing tilt column.The case where according to different patients, by controlling the length on neck of femur top,
And the tilt angle between neck of femur top and the bottom, it can make neck of femur that there are many kinds of variable specifications, to adapt to different trouble
The demand of person.
Excellent as further selecting, above-mentioned multilevel hole material used by above-mentioned filling interlayer specifically can be by multistage porous
Material is constituted, including material body, ontology are the vestibules being classified with material pore size, and around the cavity wall for forming vestibule
It constitutes, vestibule is in uniform distribution, and junior's vestibule is arranged in the cavity wall for constituting higher level's vestibule in three-dimensional space；Holes at different levels
Chamber is respectively mutually communicated and vestibule at different levels also penetrates through each other each other, and vestibule refers to each vestibule in multi-stage porous in uniform distribution
It is in uniform distribution under arbitrary unit grade volume on material.
More specifically, above-mentioned multilevel hole material, intrinsic every grade of porous material are certainly a continuous structure body.And
The maximum outer boundary of its every level-one porous material is suitable with the space boundary of entire material body.I.e. every grade of porous material is ok
It is present in ontology as the independent porous material of level-one, and the physical and chemical performance with it alone.Such structure can make
The physical and chemical performance of porous materials at different levels difference has different physical and chemical performances in the entire space of relatively-stationary material,
Preferably meet various functional requirements.
More specifically, the cavity wall of above-mentioned multilevel hole material, higher level's vestibule can be made of next stage porous material, so that
Vestibule is layered step by step, and the structure and pore size of reasonable Arrangement vestibule；The cavity wall of higher level's vestibule can also be by the more of its junior
The grade compound composition of porous material, or constituted by the porous materials at different levels of its junior are compound, so that material meets specific function
It can demand.
More specifically, above-mentioned unit grade volume refers to cubic centimetre grade or cubic millimeter grade or more subsection grade volume.
More specifically, above-mentioned vestibule refers in uniform distribution takes up an official post the volume taken no more than 1 in the multilevel hole material
The said three-dimensional body of the same size of cubic centimetre, their quality are substantially suitable.
More specifically, above-mentioned quality quite refers to vertical no more than 1 in take up an official post multiple volumes for taking of multilevel hole material substantially
The said three-dimensional body of square centimetre of same size claims its quality respectively, obtains the average value of their quality, and any three-dimensional weight phase
The 4% of said three-dimensional body mass average value is not more than for the absolute value of the bias of mass average value.
Conventional medical metal, alloy and the materials such as nonmetallic specifically can be used in above-mentioned multilevel hole material in the present invention
It is made.
The present invention has the following beneficial effects:
(1) it the present invention provides a kind of modular hip prosthesis, is fallen between neck of femur and femoral stem by elasticity in structure
The plug-in type of hook and L shape through-hole hooks card effect, and connects and be combined together, it is therefore prevented that neck of femur is detached from from femoral stem；And work as
When the situations such as occurs being broken in neck, and it can realize and separate neck of femur and femoral stem, avoiding causes because of component failure
Integrally-built failure waste.In addition, the tapered protrusion being arranged in the middle part of its femoral stem, it is therefore prevented that between femoral stem and femur
Relative motion, in conjunction with stronger；Its neck of femur has a variety of variable specifications, has adapted to the individual demand of different patients.
(2) the filling interlayer through shank body two sides being arranged in the middle part of its femoral stem, is made of multilevel hole material；The multi-stage porous
Material is three-dimensional perforation (including every grade of hole three-dimensional perforation, holes at different levels three-dimensional perforation mutually), and connectivity is greatly changed
It is kind, multiple functions demand of the material as biomimetic artificial bone is sufficiently met, for example, having both good structural mechanical property simultaneously
With higher porosity, dead load is greatly alleviated, alleviates and is born to human body bring, enhance object between tissue
The efficient exchange of matter greatly accelerates the convalescence after Miles operation, and should by this specific central area filling in the middle part of femoral stem
Multilevel hole material interlayer also acts the effects of intramedullary cavity decompression；Vestibule in its multilevel hole material constitutes multistage gap point
Cloth, and its overall distribution mode approximate part tissue, significantly reduce the rejection of human body, and thus bring
Bad impression；Phase after the implantation, as tissue grows into the positions such as gaps at different levels, and then form multistage grow into it is firm
Structure greatly improves the connective stability etc. of structure.
(3) it is also evenly distributed to the vestibule of multilevel hole material in the present invention and proposes the metric form of specific, concrete, it is clear
It is the pore size distribution uniformity that multilevel hole material is measured under the scale compared with the subsection grade volume, such multilevel hole material is
High uniformity, to ensure that the uniformity consistency of the various performances of multilevel hole material, avoid the internal flaw of selection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of modular hip prosthesis described in the embodiment of the present invention 1.
Fig. 2 is humerus handle structure top view in modular hip prosthesis described in Fig. 1.
Fig. 3 is the A-A cross-sectional view of humerus handle structure in modular hip prosthesis described in Fig. 1.
Fig. 4 is the structural schematic diagram of modular hip prosthesis described in the embodiment of the present invention 2.
Fig. 5 is the structural schematic diagram of modular hip prosthesis described in the embodiment of the present invention 3.
Specific embodiment
Based on the technical solution of the present invention, following present its detailed embodiment, but protection scope of the present invention
It is not limited only to embodiment disclosed below.When not departing from and changing above-mentioned technical idea of the invention, according to the general of this field
Logical technological know-how and/or customary means, it is clear that the replacement or change of diversified forms can also be made, and the present invention should all be included in
Within the scope of.
Embodiment 1
As shown in Figure of description 1-3, a kind of modular hip prosthesis, it includes femoral stem 1 and neck of femur 2；Its femur
The lower part of neck 2 is integrally in positive bar shape, and top is set as biasing tilt column；The lower end of its neck of femur 2 consists of two parts,
Middle a part is resilient barb 3, and another part is column 4, and spaced slot 5 is equipped between resilient barb 3 and column 4；
L shape through-hole 6 is provided on the head of its femoral stem 1, and head upper end also has additional location hole 7；Its 2 lower part of neck of femur is inserted into
In L shape through-hole 6, and the hook of resilient barb 3 is stuck in the transverse holes 8 on L shape through-hole 6；It is upper close to neck of femur 2 in the middle part of its femoral stem 1
Side be provided with tapered protrusion 9, and the middle part of its femoral stem 1 is additionally provided with and uses multilevel hole material system through shank body two sides
At filling interlayer 10；It is POROUS TITANIUM that multilevel hole material used by interlayer 10 is filled in the present embodiment, has three-level hole,
In, it is uniformly distributed, has the second level vestibule for being uniformly distributed, being mutually communicated in the cavity wall of first order vestibule that is mutually communicated, second
There is the third level vestibule for being uniformly distributed, being mutually communicated in the cavity wall of grade vestibule；And vestibules at different levels also penetrate through each other each other, it is described
Perforation be three-dimensional perforation.Every grade of porous material from being a continuous structure body, the maximum outer boundary of every level-one porous material with it is whole
A material body space boundary is suitable, and every grade of porous material has physical and chemical performance alone.Total effective drainage porosity is 75%, first
Grade hole average pore size is 450 μm, has the second level hole of 30 μm of average pore size of perforation in the cavity wall in first order hole, in the second level
There is the third level hole of the perforation of average pore size 670nm in the cavity wall in hole.
Taken up an official post with conventional machining method in the POROUS TITANIUM and takes the three-dimensional of the identical size of 9 10mm × 10mm × 10mm
Body tests its quality with plum Teller-support benefit XP26 Microbalance balance, and the results are shown in Table 1, wherein relative to flat
The absolute value of the bias of mean value is expressed as a percentage, and value is the absolute value of the bias relative to average value divided by mass average value, by
Table 1 is it is found that its mass deviation is not more than 4%.
Table 1
| Piece number | Quality (mg) | Absolute value of the bias (%) relative to average value |
| 1 | 1156.184 | 1.4% |
| 2 | 1135.077 | 3.2% |
| 3 | 1151.493 | 1.8% |
| 4 | 1157.356 | 1.3% |
| 5 | 1145.630 | 2.3% |
| 6 | 1217.159 | 3.8% |
| 7 | 1197.225 | 2.1% |
| 8 | 1191.362 | 1.6% |
| 9 | 1201.915 | 2.5% |
| Mass average value | 1172.600 |
The preparation method of this kind of POROUS TITANIUM is:
(1) material prepares
Using partial size for 2 μm of titanium valve is raw material, minimum one of the starch as multilevel hole material to be made that partial size is 770nm
The pore creating material of grade vestibule, uses the stearic acid that partial size is 770nm as adhesive, according to titanium valve: starch: stearic acid: distilled water is pressed
Volume ratio 3:1:1:11 is configured to slurry.
It uses rib diameter for 30 μm of polyester form, the slurry is uniformly filled wherein with foam impregnation method, forms base
Then body and drying are crushed and obtain the hybrid particles containing raw material, pore creating material and polyester form that particle is 30 μm.
It (2) is that 3:1 equably pours into rib after evenly mixing by volume for 30 μm of methylcellulose by hybrid particles, partial size
In the polyester form of three-dimensional perforation that diameter is 560 ± 20 μm, aperture is 400 ± 15 μm, then polyester form is put into closed
Mold is pressed into dense green.
(3) by dense green vacuum-sintering；Sintered green body carries out conventional subsequent heat treatment according to titanium technique and obtains
POROUS TITANIUM with three-level hole.
This kind of POROUS TITANIUM is grown into as bone-regeneration material, first order pore size particularly suitable for meeting the vital tissues such as blood vessel
Demand；Second level hole is lived away from home particularly suitable for various kinds of cell；Third level hole is particularly conducive to meet thin because of its a large amount of nano-pore
The sticking of born of the same parents, differentiation demand, and specific surface area is very big, can load many growth factors, moreover, the connectivity in hole is good, respectively
Grade hole is respectively mutually communicated and hole at different levels also penetrates through each other each other, can sufficiently meet blood, the infiltration of tissue fluid, transmission,
Realize the discharge of protein degradation products and metabolism product, therefore it is a kind of real bone-regeneration material.In addition, its stock
The supermedial tapered protrusion 9 of bone handle 1, it is therefore prevented that relative motion between femoral stem 1 and femur, and prevent femoral stem 1 after implantation
Sink, in conjunction with stronger；The case where according to different patients, the length L of selection control 2 top of neck of femur biasing tilt column, with
And the tilt angle A between 2 top and the bottom of neck of femur has adapted to different trouble that is, so that neck of femur 2 is provided with a variety of variable specifications
The individual demand of person.
Embodiment 2
As shown in Figure of description 4, a kind of modular hip prosthesis, it includes femoral stem 1 and neck of femur 2；Its neck of femur 2
Lower part be integrally in positive bar shape, top is set as biasing tilt column；The lower end of its neck of femur 2 consists of two parts, wherein
A part is resilient barb 3, and another part is column 4, and spaced slot 5 is equipped between resilient barb 3 and column 4；Its
L shape through-hole 6 is provided on the head of femoral stem 1, and head upper end also has additional location hole 7；Its 2 lower part of neck of femur is inserted into L
In shape through-hole 6, and the hook of resilient barb 3 is stuck in the transverse holes 8 on L shape through-hole 6；The middle part of its femoral stem 1, which is additionally provided with, to be run through
Interlayer 10 is filled using multilevel hole material is manufactured in shank body two sides；Multi-stage porous material used by interlayer 10 is filled in the present embodiment
Material is porous tantalum, has three-level hole, wherein is uniformly distributed, is uniformly distributed in the cavity wall of first order vestibule that is mutually communicated, phase
The second level vestibule mutually penetrated through has the third level vestibule for being uniformly distributed, being mutually communicated in the cavity wall of second level vestibule；And holes at different levels
Chamber also penetrates through each other each other, and the perforation is three-dimensional perforation；For every grade of porous material from being a continuous structure body, every level-one is more
The maximum outer boundary of Porous materials is suitable with entire material body space boundary, and every grade of porous material has physical and chemical performance alone.
Total effective drainage porosity is 80%, and first order hole average pore size is 510 μm, there is 25 μm of average pore size in the cavity wall in first order hole
The second level hole of perforation, the third level hole for thering is average pore size 780nm to penetrate through in the cavity wall in second level hole.
Taken up an official post with conventional machining method in the multilevel hole material and takes the identical size of 9 10mm × 10mm × 10mm
Said three-dimensional body tests its quality with plum Teller-support benefit XP26 Microbalance balance, and the results are shown in Table 2, wherein opposite
It is expressed as a percentage in the absolute value of the bias of average value, value is average divided by quality for the absolute value of the bias relative to average value
Value, as shown in Table 2, mass deviation are not more than 4%.
Table 2
| Piece number | Quality (mg) | Absolute value of the bias (%) relative to average value |
| 1 | 3282.624 | 1.6% |
| 2 | 3292.63 | 1.3% |
| 3 | 3242.592 | 2.8% |
| 4 | 3265.944 | 2.1% |
| 5 | 3285.960 | 1.5% |
| 6 | 3469.440 | 4% |
| 7 | 3409.392 | 2.2% |
| 8 | 3396.048 | 1.8% |
| 9 | 3379.368 | 1.3% |
| Mass average value | 3336 |
The preparation method of this kind of material is:
(1) material prepares
The polystyrene sphere that partial size is 900 ± 30nm is chosen, the colloid template to form three-dimensional order arrangement is assembled,
Tantalum nanocrystal solution is prepared, tantalum nanocrystal solution is introduced into three-dimensional colloid template made of polystyrene sphere, by three-dimensional glue
Body template/tantalum nanocrystal solution mixture is dry, is then broken for the particle that partial size is 5 μm；
(2) taking partial size is the starch of 900 ± 30nm, mixes according to weight ratio 1:40 with distilled water, starch solution is made,
Slurry is made according to weight ratio 12:1:8 in above-mentioned particle, the ethyl cellulose that partial size is 35 μm and starch solution, equably
It is impregnated on the polyester form that aperture is 600 ± 20 μm；
(3) polyester form after dipping is sintered in vacuum or protective atmosphere, is carried out according still further to tantalum technique conventional subsequent
The porous tantalum with three-level hole is made in processing.
Similar to embodiment 1, this kind of material is particularly suitable for doing bone-regeneration material；In when occur neck fracture etc. feelings
It when shape, can be protruded into transverse holes 8, resilient barb 3 be pushed to spaced slot 5, so that resilient barb 3 and transverse holes with tool
It is lost between 8 and hooks card effect, that is, realized and separate neck of femur 2 and femoral stem 1, avoided because the components such as neck fracture lose
It imitates and integrally-built failure is caused to waste.
Embodiment 3
As shown in Figure of description 5, a kind of modular hip prosthesis, it includes femoral stem 1 and neck of femur 2；Its neck of femur 2
Lower part be integrally in positive bar shape, top is set as biasing tilt column；The lower end of its neck of femur 2 consists of two parts, wherein
A part is resilient barb 3, and another part is column 4, and spaced slot 5 is equipped between resilient barb 3 and column 4；Its
L shape through-hole 6 is provided on the head of femoral stem 1；Its 2 lower part of neck of femur is inserted into L shape through-hole 6, and the hook of resilient barb 3 is stuck in
In transverse holes 8 on L shape through-hole 6；The middle part of its femoral stem 1 is additionally provided with being made of multilevel hole material through shank body two sides
Filling interlayer 10；It is same as Example 1 that multilevel hole material used by interlayer 10 is filled in the present embodiment.
Claims (69)
1. a kind of modular hip prosthesis, it includes femoral stem (1) and neck of femur (2), it is characterised in that: the neck of femur (2)
Lower end consist of two parts, a portion is resilient barb (3), and another part is column (4), and resilient barb
(3) spaced slot (5) are equipped between column (4)；L shape through-hole (6) is provided on the head of the femoral stem (1)；It is described
The lower part of neck of femur (2) is inserted into the L shape through-hole (6), and resilient barb (3) hooks the transverse holes being stuck on L shape through-hole (6)
(8) in；It is provided in the middle part of the femoral stem (1) and fills interlayer using made of multilevel hole material through shank body two sides
(10).
2. modular hip prosthesis as described in claim 1, it is characterised in that: close to the femur on femoral stem (1) middle part
The side of neck (2) is provided with tapered protrusion (9).
3. modular hip prosthesis as claimed in claim 1 or 2, it is characterised in that: the head upper end of the femoral stem (1) has additional
Location hole (7).
4. modular hip prosthesis as claimed in claim 1 or 2, it is characterised in that: the lower part of the neck of femur (2) is integrally in positive column
Body shape, top are set as biasing tilt column.
5. modular hip prosthesis as claimed in claim 3, it is characterised in that: the lower part of the neck of femur (2) is integrally in positive cylinder
Shape, top are set as biasing tilt column.
6. modular hip prosthesis as claimed in claim 1 or 2, it is characterised in that: the multilevel hole material, by multistage porous material
It constitutes, including material body, ontology are the vestibules being classified with material pore size, and around the cavity wall structure for forming vestibule
At vestibule is in uniform distribution, and junior's vestibule is arranged in the cavity wall for constituting higher level's vestibule in three-dimensional space；Vestibules at different levels
It is respectively mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to each vestibule in multi-stage porous material in uniform distribution
It is in uniform distribution under arbitrary unit grade volume on material.
7. modular hip prosthesis as claimed in claim 3, it is characterised in that: the multilevel hole material, by multistage porous material structure
At, including material body, ontology are the vestibules being classified with material pore size, and are constituted around the cavity wall for forming vestibule,
Its vestibule is in uniform distribution, and junior's vestibule is arranged in the cavity wall for constituting higher level's vestibule in three-dimensional space；Vestibules at different levels are equal
It is respectively mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to each vestibule in multilevel hole material in uniform distribution
It is in uniform distribution under upper arbitrary unit grade volume.
8. modular hip prosthesis as claimed in claim 4, it is characterised in that: the multilevel hole material, by multistage porous material structure
At, including material body, ontology are the vestibules being classified with material pore size, and are constituted around the cavity wall for forming vestibule,
Its vestibule is in uniform distribution, and junior's vestibule is arranged in the cavity wall for constituting higher level's vestibule in three-dimensional space；Vestibules at different levels are equal
It is respectively mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to each vestibule in multilevel hole material in uniform distribution
It is in uniform distribution under upper arbitrary unit grade volume.
9. modular hip prosthesis as claimed in claim 5, it is characterised in that: the multilevel hole material, by multistage porous material structure
At, including material body, ontology are the vestibules being classified with material pore size, and are constituted around the cavity wall for forming vestibule,
Its vestibule is in uniform distribution, and junior's vestibule is arranged in the cavity wall for constituting higher level's vestibule in three-dimensional space；Vestibules at different levels are equal
It is respectively mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to each vestibule in multilevel hole material in uniform distribution
It is in uniform distribution under upper arbitrary unit grade volume.
10. modular hip prosthesis as claimed in claim 6, it is characterised in that: the multilevel hole material, it is every grade intrinsic
Porous material is from being a continuous structure body, and the space side of the maximum outer boundary of its every level-one porous material and entire material body
Boundary is suitable；Every grade of porous material has physical and chemical performance alone in material body.
11. modular hip prosthesis as claimed in claim 7, it is characterised in that: the multilevel hole material, it is every grade intrinsic
Porous material is from being a continuous structure body, and the space side of the maximum outer boundary of its every level-one porous material and entire material body
Boundary is suitable；Every grade of porous material has physical and chemical performance alone in material body.
12. modular hip prosthesis as claimed in claim 8, it is characterised in that: the multilevel hole material, it is every grade intrinsic
Porous material is from being a continuous structure body, and the space side of the maximum outer boundary of its every level-one porous material and entire material body
Boundary is suitable；Every grade of porous material has physical and chemical performance alone in material body.
13. modular hip prosthesis as claimed in claim 9, it is characterised in that: the multilevel hole material, it is every grade intrinsic
Porous material is from being a continuous structure body, and the space side of the maximum outer boundary of its every level-one porous material and entire material body
Boundary is suitable；Every grade of porous material has physical and chemical performance alone in material body.
14. modular hip prosthesis as claimed in claim 6, it is characterised in that: the cavity wall of higher level's vestibule in the multilevel hole material,
Or it is made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels more of its junior
The compound composition of Porous materials.
15. modular hip prosthesis as claimed in claim 7, it is characterised in that: the cavity wall of higher level's vestibule in the multilevel hole material,
Or it is made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels more of its junior
The compound composition of Porous materials.
16. modular hip prosthesis as claimed in claim 8, it is characterised in that: the cavity wall of higher level's vestibule in the multilevel hole material,
Or it is made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels more of its junior
The compound composition of Porous materials.
17. modular hip prosthesis as claimed in claim 9, it is characterised in that: the cavity wall of higher level's vestibule in the multilevel hole material,
Or it is made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels more of its junior
The compound composition of Porous materials.
18. modular hip prosthesis as claimed in claim 10, it is characterised in that: the chamber of higher level's vestibule in the multilevel hole material
Wall, or be made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels of its junior
The compound composition of porous material.
19. modular hip prosthesis as claimed in claim 11, it is characterised in that: the chamber of higher level's vestibule in the multilevel hole material
Wall, or be made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels of its junior
The compound composition of porous material.
20. modular hip prosthesis as claimed in claim 12, it is characterised in that: the chamber of higher level's vestibule in the multilevel hole material
Wall, or be made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels of its junior
The compound composition of porous material.
21. modular hip prosthesis as claimed in claim 13, it is characterised in that: the chamber of higher level's vestibule in the multilevel hole material
Wall, or be made of next stage porous material, or constituted by the multistage porous material of its junior is compound, or by the at different levels of its junior
The compound composition of porous material.
22. modular hip prosthesis as claimed in claim 6, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
23. modular hip prosthesis as claimed in claim 7, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
24. modular hip prosthesis as claimed in claim 8, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
25. modular hip prosthesis as claimed in claim 9, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
26. modular hip prosthesis as claimed in claim 10, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
27. modular hip prosthesis as claimed in claim 11, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
28. modular hip prosthesis as claimed in claim 12, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
29. modular hip prosthesis as claimed in claim 13, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
30. modular hip prosthesis as claimed in claim 14, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
31. modular hip prosthesis as claimed in claim 15, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
32. modular hip prosthesis as claimed in claim 16, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
33. modular hip prosthesis as claimed in claim 17, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
34. modular hip prosthesis as claimed in claim 18, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
35. modular hip prosthesis as claimed in claim 19, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
36. modular hip prosthesis as claimed in claim 20, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
37. modular hip prosthesis as claimed in claim 21, it is characterised in that: the unit grade volume refer to cubic centimetre grade or
Cubic millimeter grade or more subsection grade volume.
38. modular hip prosthesis as claimed in claim 22, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
39. modular hip prosthesis as claimed in claim 23, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
40. modular hip prosthesis as claimed in claim 24, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
41. modular hip prosthesis as claimed in claim 25, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
42. modular hip prosthesis as claimed in claim 26, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
43. modular hip prosthesis as claimed in claim 27, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
44. modular hip prosthesis as claimed in claim 28, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
45. modular hip prosthesis as claimed in claim 29, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
46. modular hip prosthesis as claimed in claim 30, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
47. modular hip prosthesis as claimed in claim 31, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
48. modular hip prosthesis as claimed in claim 32, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
49. modular hip prosthesis as claimed in claim 33, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
50. modular hip prosthesis as claimed in claim 34, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
51. modular hip prosthesis as claimed in claim 35, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
52. modular hip prosthesis as claimed in claim 36, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
53. modular hip prosthesis as claimed in claim 37, it is characterised in that: the vestibule refers to more at this in uniform distribution
Grade Porous materials take up an official post the volume taken no more than 1 cubic centimetre and each said three-dimensional body of same size, their quality are substantially suitable.
54. modular hip prosthesis as claimed in claim 38, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
55. modular hip prosthesis as claimed in claim 39, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
56. modular hip prosthesis as claimed in claim 40, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
57. the modular hip prosthesis as described in claim 41, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
58. the modular hip prosthesis as described in claim 42, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
59. the modular hip prosthesis as described in claim 43, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
60. the modular hip prosthesis as described in claim 44, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
61. the modular hip prosthesis as described in claim 45, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
62. the modular hip prosthesis as described in claim 46, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
63. the modular hip prosthesis as described in claim 47, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
64. the modular hip prosthesis as described in claim 48, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
65. the modular hip prosthesis as described in claim 49, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
66. the modular hip prosthesis as described in claim 50, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
67. the modular hip prosthesis as described in claim 51, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
68. the modular hip prosthesis as described in claim 52, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
69. the modular hip prosthesis as described in claim 53, it is characterised in that: the quality quite refers to substantially in multi-stage porous material
Material is taken up an official post the said three-dimensional body of the same size of multiple volumes for taking no more than 1 cubic centimetre, is claimed its quality respectively, is obtained their quality
Average value, and any three-dimensional weight relative to mass average value absolute value of the bias no more than said three-dimensional body mass average value
4%。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989896.5A CN106913402B (en) | 2015-12-25 | 2015-12-25 | A kind of modular hip prosthesis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989896.5A CN106913402B (en) | 2015-12-25 | 2015-12-25 | A kind of modular hip prosthesis |
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| CN106913402A CN106913402A (en) | 2017-07-04 |
| CN106913402B true CN106913402B (en) | 2019-02-19 |
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| CN201510989896.5A Active CN106913402B (en) | 2015-12-25 | 2015-12-25 | A kind of modular hip prosthesis |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108143520A (en) * | 2017-12-21 | 2018-06-12 | 嘉思特华剑医疗器材(天津)有限公司 | A kind of minimally invasive hip prosthesis system |
| CN108969163B (en) * | 2017-12-28 | 2021-06-25 | 浙江德康医疗器械有限公司 | A zero-notch fusion device |
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