CN106880419B - A kind of hip prosthesis - Google Patents
A kind of hip prosthesis Download PDFInfo
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- CN106880419B CN106880419B CN201510943887.2A CN201510943887A CN106880419B CN 106880419 B CN106880419 B CN 106880419B CN 201510943887 A CN201510943887 A CN 201510943887A CN 106880419 B CN106880419 B CN 106880419B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
-
- 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
-
- 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
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
-
- 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
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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 hip prosthesis.It includes femoral stem (1) and neck of femur (2), it is characterised in that: it further includes having attachment screw (3) and fastening inserted link (4)；The head of the femoral stem (1) is provided with L tee section (5), and threaded hole (6) are provided on the longitudinal surface of L tee section (5)；The lower part of the neck of femur (2) is provided with through-hole (7)；The attachment screw (3) passes through the through-hole (7) and is cooperatively connected with the threaded hole (6)；Hole (9) are provided in the shank body of the femoral stem (1), are combined with the fastening inserted link (4) in the hole (9)；The shank body lower part (10) of the femoral stem (1) is made of multilevel hole material.The present invention designs simplicity, and whole connectivity, connective stability and biocompatibility are higher, convenient for the efficient progress of implant surgery.
Description
Technical field
The present invention relates to human synovial displacement more particularly to a kind of hip prosthesis.
Background technique
Currently, the hip prosthesis structure design multiplicity clinically used for treatment human hip lesion, to increase
The connective stability of structure itself, Separate designs are especially complicated, and building block is more, are unfavorable for the efficient progress of replacement operation.
Meanwhile they also all exist between tissue connective stability it is not high, after implantation easily occur loosen, fall off, bio-compatible
Property is poor, and tissue is there are certain rejection, the common problems such as service life is shorter.These problems are merely by optimization knot
Structure design 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 material institute in single hole due to having the advantage in holes at different levels simultaneously simultaneously
The advantage not having, for example, mesoporous (aperture 2nm < < the 50nm)-micropore of macropore (aperture > 50nm)-with three-dimensional order
The molecular sieve of (aperture < 2nm) structure combines the advantage of multi-stage artery structure and the nanocrystalline the two of molecular sieve, imparts molecule
More open three-dimensional open-framework is sieved, while nano molecular sieve crystal substantially reduces mass transfer path, effectively improves
The materialization activity of gained 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 existing report about selection multilevel hole material is even more extremely limited.This
May be mainly due to existing porous material itself there is also along with porosity raising, structural mechanics intensity can be significant
Decline, therefore porosity is generally relatively low, connectivity is lower, is unfavorable for the efficient exchange of substance in tissue, biocompatibility
It is bad, it is self-possessed heavier, postoperative human feeling is bad and gap is unevenly distributed causes mechanical strength, elasticity modulus etc. uneven
The defects of being distributed, causing hidden danger of quality.For example, CN201210185031 discloses a kind of multistage (micrometer/nanometer) pore structure
Biomimetic artificial bone preparation method, however the three-dimensional multistage pore structure obtained using this method is random due to its pore structure
Property, scrambling, are 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 hip prosthesis, structure design is easy, whole connectivity, stable connection
Property and biocompatibility are higher, convenient for the efficient progress of implant surgery.
The purpose of the present invention is achieved through the following technical solutions:
A kind of hip prosthesis, it includes femoral stem and neck of femur, it is characterised in that: it further include have attachment screw and
Fasten inserted link；The head of the femoral stem is provided with L tee section, and is provided with threaded hole on the longitudinal surface of L tee section；The stock
The lower part of bone neck is provided with through-hole；The attachment screw passes through the through-hole and is cooperatively connected with the threaded hole；The femur
It is provided with hole in the shank body of handle, the fastening inserted link is combined in the hole；The shank body lower part of the femoral stem uses multi-stage porous material
Material is made.
To meet different patient personalized demands, to reach best installation site requirement, the lower part of above-mentioned neck of femur is set
Be positive cylinder, and top is set as biasing tilt column.The case where according to different patients, by the length on control neck of femur top, and
Neck of femur can be realized with many kinds of variable specifications, to adapt to different patients in tilt angle between neck of femur top and the bottom
Demand.
Location hole is equipped with for convenience of product installation positioning, the middle part of above-mentioned femoral stem in operation implementation process.
To further increase the stable connection between femoral stem and neck of femur, above-mentioned threaded hole, above-mentioned through-hole and above-mentioned company
It connects screw correspondence and sets at least to two.
It is excellent as further selecting, above-mentioned multilevel hole material used by above-mentioned femoral stem shank body, 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.
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 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, 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 millimeter, 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 the same size of square millimeter 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.
The present invention has the following beneficial effects:
(1) the present invention provides a kind of hip prosthesis, femoral stem shank body is made of multilevel hole material；The multi-stage porous material
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 improved,
Sufficiently meet multiple functions demand of the material as biomimetic artificial bone, for example, have both simultaneously good structural mechanical property and
Higher porosity, greatly alleviates dead load, alleviates and bears to human body bring, enhances substance between tissue
Efficient exchange, greatly accelerate the convalescence after Miles operation；Vestibule in its multilevel hole material constitutes multistage gap distribution, and it is total
Body distribution mode approximate part tissue, significantly reduces the rejection of human body, and the thus bad impression of bring；
Phase after the implantation as tissue grows into the positions such as the location hole on gaps at different levels and shank body, and then forms more
Grade grows into structure and the intracorporal tissue of build-in handle, is greatly improved the connective stability etc. of structure.
(2) 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.
(3) by cooperating fastening inserted link in the hole in femoral stem shank body, i.e., easily realizing the phase before implantation prevents
The effects of sinking and rotation of femoral stem, further strengthen its connectivity robustness；And phase, collaboration multistage are grown into after mounting
The wedge action of structure and the intracorporal tissue of build-in handle, more enhances the connective stability of structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hip prosthesis described in the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of hip prosthesis described in the embodiment of the present invention 2.
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, a kind of hip prosthesis, it includes femoral stem 1, neck of femur 2,3 and of attachment screw
Fasten inserted link 4；The head of its femoral stem 1 is provided with L tee section 5, and there are two threaded holes for setting on the longitudinal surface of L tee section 5
6；The lower part of its neck of femur 2 is set as positive cylinder, and top is set as biasing tilt column；There are two logical for setting on the lower part of the neck of femur 2
Hole 7；Two attachment screws 3 are each passed through through-hole 7 and connect with 6 corresponding matching of threaded hole；There are two the middle part of its femoral stem 1 is set
Location hole 8；It is provided with hole 9 on the shank body lower part 10 of femoral stem 1, interference fit has fastening inserted link 4, the fastening inserted link 4 in the hole 9
Both ends stretch out the both ends in hole 9；The shank body lower part 10 of the femoral stem 1 is made of multilevel hole material, and through conventional laser
Welding or bonding are realized and being fixedly connected in the middle part of femoral stem 1；Multilevel hole material employed in the present embodiment is porous tantalum, tool
There is three-level hole, wherein be uniformly distributed, have second for being uniformly distributed, being mutually communicated in the cavity wall of first order vestibule that is mutually communicated
Grade vestibule, has the third level vestibule for being uniformly distributed, being mutually communicated in the cavity wall of second level vestibule；And vestibules at different levels each other also that
This perforation, the perforation are three-dimensional perforation；Every grade of porous material is certainly a continuous structure body, the maximum of every level-one porous material
Outer boundary is suitable with entire material body space boundary, and every grade of porous material has physical and chemical performance alone.Total effective drainage porosity
It is 80%, first order hole average pore size is 510 μm, there is the second level of 25 μm of average pore size of perforation in the cavity wall in first order hole
Hole, the third level hole for thering is average pore size 780nm to penetrate through in the cavity wall in second level hole.
It is machined into method and takes up an official post in the multilevel hole material and take the three-dimensional of the identical size of 9 10mm × 10mm × 10mm
Body tests its quality with plum Teller-support benefit XP26Microbalance 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 | 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.
This kind of porous tantalum 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.
Phase before implantation, by cooperating fastening inserted link in the hole in femoral stem shank body, i.e., easily realizing prevents stock
The effects of sinking and rotation of bone handle, strengthen its connectivity robustness；And phase after mounting, also collaboration have multistage grow into structure and
It is embedded in the wedge action of the intracorporal tissue of handle, more enhances the connective stability of structure.
Embodiment 2
As shown in Figure of description 2, a kind of hip prosthesis, it includes femoral stem 1, neck of femur 2,3 and of attachment screw
Fasten inserted link 4；The head of its femoral stem 1 is provided with L tee section 5, and there are two threaded holes for setting on the longitudinal surface of L tee section 5
6；The lower part of its neck of femur 2 is set as positive cylinder, and top is set as biasing tilt column；There are two logical for setting on the lower part of the neck of femur 2
Hole 7；Two attachment screws 3 are each passed through through-hole 7 and connect with 6 corresponding matching of threaded hole；It is set on the shank body lower part 10 of femoral stem 1
It is equipped with hole 9, which is threaded hole；It is specially screw rod that it, which fastens inserted link 4, is cooperated in hole 9, and the both ends for fastening inserted link 4 are stretched
Portal 9 both ends；The shank body lower part 10 of the femoral stem 1 is made of multilevel hole material, and through conventional laser welding or bonding
Etc. modes realize and femoral stem 1 middle part being fixedly connected；Multilevel hole material employed in the present embodiment is POROUS TITANIUM, has three
Grade hole, wherein be uniformly distributed, have the second level hole for being uniformly distributed, being mutually communicated in the cavity wall of first order vestibule that is mutually communicated
Chamber has the third level vestibule for being uniformly distributed, being mutually communicated in the cavity wall of second level vestibule；And vestibules at different levels also pass through each other each other
Logical, the perforation is three-dimensional perforation.Every grade of porous material is a continuous structure body, the maximum outside of every level-one porous material certainly
Boundary is suitable with entire material body space boundary, and every grade of porous material has physical and chemical performance alone.Always effective drainage porosity is
75%, first order hole average pore size is 450 μm, there is the second level of 30 μm of average pore size of perforation in the cavity wall in first order hole
There is the third level hole of the perforation of average pore size 670nm in hole in the cavity wall in second level hole.
It is machined into method and takes up an official post in the POROUS TITANIUM and take the said three-dimensional body of the identical size of 9 10mm × 10mm × 10mm,
Its quality is tested with plum Teller-support benefit XP26Microbalance balance, the results are shown in Table 2, wherein relative to average value
Absolute value of the bias be expressed as a percentage, value be relative to average value absolute value of the bias divided by mass average value, can by table 2
Know, mass deviation is not more than 4%.
Table 2
| 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.
Similar to embodiment 1, this kind of material is particularly suitable for doing bone-regeneration material；In addition, the case where according to different patients,
Tilt angle A between 2 top and the bottom length L and neck of femur of selection control 2 top of neck of femur biasing tilt column, that is, realize
Neck of femur 2 has a variety of variable specifications, has adapted to the individual demand of different patients.
Claims (69)
1. a kind of hip prosthesis, it includes femoral stem (1) and neck of femur (2), it is characterised in that: it further includes having connection spiral shell
Follow closely (3) and fastening inserted link (4)；The head of the femoral stem (1) is provided with L tee section (5), and on the longitudinal surface of L tee section (5)
It is provided with threaded hole (6)；The lower part of the neck of femur (2) is provided with through-hole (7)；The attachment screw (3) passes through the through-hole
(7) and with the threaded hole (6) it is cooperatively connected；Hole (9) are provided in the shank body of the femoral stem (1), are combined in the hole (9)
The fastening inserted link (4)；The shank body lower part (10) of the femoral stem (1) is made of multilevel hole material.
2. hip prosthesis as described in claim 1, it is characterised in that: the lower part of the neck of femur (2) is set as positive cylinder, top
It is set as biasing tilt column.
3. hip prosthesis as claimed in claim 1 or 2, it is characterised in that: the middle part of the femoral stem (1) is equipped with location hole
(8).
4. hip prosthesis as claimed in claim 1 or 2, it is characterised in that: the threaded hole (6), the through-hole (7) and described
Attachment screw (3) correspondence sets at least to two.
5. hip prosthesis as claimed in claim 3, it is characterised in that: the threaded hole (6), the through-hole (7) and the company
It connects screw (3) correspondence and sets at least to two.
6. hip prosthesis as claimed in claim 1 or 2, 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.
7. hip prosthesis as claimed in claim 3, it is characterised in that: the multilevel hole material is made of multistage porous material,
Including material body, ontology is the vestibule being classified with material pore size, and is constituted around the cavity wall for forming vestibule, hole
Chamber 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 respective
It is mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to that each vestibule is taken up an official post in multilevel hole material in uniform distribution
It is in uniform distribution under unit grade volume of anticipating.
8. hip prosthesis as claimed in claim 4, it is characterised in that: the multilevel hole material is made of multistage porous material,
Including material body, ontology is the vestibule being classified with material pore size, and is constituted around the cavity wall for forming vestibule, hole
Chamber 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 respective
It is mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to that each vestibule is taken up an official post in multilevel hole material in uniform distribution
It is in uniform distribution under unit grade volume of anticipating.
9. hip prosthesis as claimed in claim 5, it is characterised in that: the multilevel hole material is made of multistage porous material,
Including material body, ontology is the vestibule being classified with material pore size, and is constituted around the cavity wall for forming vestibule, hole
Chamber 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 respective
It is mutually communicated and vestibule at different levels also penetrates through each other each other, vestibule refers to that each vestibule is taken up an official post in multilevel hole material in uniform distribution
It is in uniform distribution under unit grade volume of anticipating.
10. 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, or is constituted by the multistage porous material of its junior is compound, or by the at different levels porous of its junior next stage porous material
Material cladding is constituted.
11. 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, or is constituted by the multistage porous material of its junior is compound, or by the at different levels porous of its junior next stage porous material
Material cladding is constituted.
12. 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, or is constituted by the multistage porous material of its junior is compound, or by the at different levels porous of its junior next stage porous material
Material cladding is constituted.
13. 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, or is constituted by the multistage porous material of its junior is compound, or by the at different levels porous of its junior next stage porous material
Material cladding is constituted.
14. hip prosthesis as claimed in claim 6, it is characterised in that: the multilevel hole material, intrinsic every grade more
Porous materials are from being a continuous structure body, and the space boundary of the maximum outer boundary of its every level-one porous material and entire material body
Quite.
15. hip prosthesis as claimed in claim 7, it is characterised in that: the multilevel hole material, intrinsic every grade more
Porous materials are from being a continuous structure body, and the space boundary of the maximum outer boundary of its every level-one porous material and entire material body
Quite.
16. hip prosthesis as claimed in claim 8, it is characterised in that: the multilevel hole material, intrinsic every grade more
Porous materials are from being a continuous structure body, and the space boundary of the maximum outer boundary of its every level-one porous material and entire material body
Quite.
17. hip prosthesis as claimed in claim 9, it is characterised in that: the multilevel hole material, intrinsic every grade more
Porous materials are from being a continuous structure body, and the space boundary of the maximum outer boundary of its every level-one porous material and entire material body
Quite.
18. hip prosthesis as claimed in claim 10, 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.
19. hip prosthesis as claimed in claim 11, 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.
20. hip prosthesis as claimed in claim 12, 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.
21. hip prosthesis as claimed in claim 13, 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.
22. hip prosthesis as claimed in claim 6, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
23. hip prosthesis as claimed in claim 7, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
24. hip prosthesis as claimed in claim 8, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
25. hip prosthesis as claimed in claim 9, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
26. hip prosthesis as claimed in claim 10, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
27. hip prosthesis as claimed in claim 11, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
28. hip prosthesis as claimed in claim 12, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
29. hip prosthesis as claimed in claim 13, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
30. hip prosthesis as claimed in claim 14, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
31. hip prosthesis as claimed in claim 15, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
32. hip prosthesis as claimed in claim 16, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
33. hip prosthesis as claimed in claim 17, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
34. hip prosthesis as claimed in claim 18, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
35. hip prosthesis as claimed in claim 19, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
36. hip prosthesis as claimed in claim 20, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
37. hip prosthesis as claimed in claim 21, it is characterised in that: the unit grade volume refers to cubic centimetre grade or vertical
Square millimeter grade or more subsection grade volume.
38. hip prosthesis as claimed in claim 22, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
39. hip prosthesis as claimed in claim 23, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
40. hip prosthesis as claimed in claim 24, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
41. hip prosthesis as claimed in claim 25, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
42. hip prosthesis as claimed in claim 26, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
43. hip prosthesis as claimed in claim 27, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
44. hip prosthesis as claimed in claim 28, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
45. hip prosthesis as claimed in claim 29, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
46. hip prosthesis as claimed in claim 30, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
47. hip prosthesis as claimed in claim 31, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
48. hip prosthesis as claimed in claim 32, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
49. hip prosthesis as claimed in claim 33, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
50. hip prosthesis as claimed in claim 34, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
51. hip prosthesis as claimed in claim 35, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
52. hip prosthesis as claimed in claim 36, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
53. hip prosthesis as claimed in claim 37, it is characterised in that: the vestibule refers in uniform distribution in the multistage
Porous materials take up an official post the volume taken no more than 1 cubic millimeter and each said three-dimensional body of same size, their quality are substantially suitable.
54. hip prosthesis as claimed in claim 38, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
55. hip prosthesis as claimed in claim 39, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
56. hip prosthesis as claimed in claim 40, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
57. the hip prosthesis as described in claim 41, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
58. the hip prosthesis as described in claim 42, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
59. the hip prosthesis as described in claim 43, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
60. the hip prosthesis as described in claim 44, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
61. the hip prosthesis as described in claim 45, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
62. the hip prosthesis as described in claim 46, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
63. the hip prosthesis as described in claim 47, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
64. the hip prosthesis as described in claim 48, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
65. the hip prosthesis as described in claim 49, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
66. the hip prosthesis as described in claim 50, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
67. the hip prosthesis as described in claim 51, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
68. the hip prosthesis as described in claim 52, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
69. the hip prosthesis as described in claim 53, it is characterised in that: the quality quite refers in multilevel hole material substantially
The multiple volumes taken of taking up an official post are not more than the said three-dimensional body of 1 cubic millimeter of same size, claim its quality respectively, obtain their quality
Average value, and any three-dimensional weight is not more than said three-dimensional body mass average value relative to the absolute value of the bias of mass average value
4%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943887.2A CN106880419B (en) | 2015-12-16 | 2015-12-16 | A kind of hip prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943887.2A CN106880419B (en) | 2015-12-16 | 2015-12-16 | A kind of hip prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106880419A CN106880419A (en) | 2017-06-23 |
| CN106880419B true CN106880419B (en) | 2019-02-19 |
Family
ID=59175012
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510943887.2A Active CN106880419B (en) | 2015-12-16 | 2015-12-16 | A kind of hip prosthesis |
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| Country | Link |
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| CN (1) | CN106880419B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112190370B (en) * | 2020-10-28 | 2024-05-17 | 北京中安泰华科技有限公司 | Anti-loose femoral stem prosthesis |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100407A (en) * | 1990-09-04 | 1992-03-31 | Pfizer Hospital Products Group, Inc. | Modular trial hip replacement system |
| CN201029959Y (en) * | 2007-05-17 | 2008-03-05 | 张朝跃 | Artificial femoral head |
| KR100932949B1 (en) * | 2008-07-14 | 2009-12-21 | 한국기계연구원 | Porous ceramic ball including hierarchically porous structure and the preparation method thereof |
| CN101889913B (en) * | 2009-10-23 | 2012-05-30 | 孙瑞财 | Artificial femoral prosthesis |
| WO2011091466A1 (en) * | 2010-02-01 | 2011-08-04 | Maxx Health Inc | Artificial joint component having hollow interior and means for load dissipation |
| CN203388966U (en) * | 2013-06-13 | 2014-01-15 | 重庆润泽医药有限公司 | Femoral component prosthesis for hip joint of human body |
| CN204049934U (en) * | 2014-08-25 | 2014-12-31 | 王金成 | Total hip replacement type femoral bone end prosthesis |
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2015
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