CN109875727A - A double-action total acetabular prosthesis with a press-fit fixed small ball head - Google Patents
A double-action total acetabular prosthesis with a press-fit fixed small ball head Download PDFInfo
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- CN109875727A CN109875727A CN201910140394.3A CN201910140394A CN109875727A CN 109875727 A CN109875727 A CN 109875727A CN 201910140394 A CN201910140394 A CN 201910140394A CN 109875727 A CN109875727 A CN 109875727A
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- liner
- press
- articular surface
- joint face
- acetabular component
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 16
- 239000008188 pellet Substances 0.000 claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims description 8
- 210000001624 hip Anatomy 0.000 abstract description 24
- 210000004394 hip joint Anatomy 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 206010023204 Joint dislocation Diseases 0.000 abstract 1
- 210000005067 joint tissue Anatomy 0.000 abstract 1
- 210000004872 soft tissue Anatomy 0.000 abstract 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 9
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000011882 arthroplasty Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910000771 Vitallium Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 239000000602 vitallium Substances 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 206010051055 Deep vein thrombosis Diseases 0.000 description 1
- 206010019468 Hemiplegia Diseases 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 208000004210 Pressure Ulcer Diseases 0.000 description 1
- 206010047249 Venous thrombosis Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000011540 hip replacement Methods 0.000 description 1
- 230000000596 hypostatic effect Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- GFUGMBIZUXZOAF-UHFFFAOYSA-N niobium zirconium Chemical compound [Zr].[Nb] GFUGMBIZUXZOAF-UHFFFAOYSA-N 0.000 description 1
- 210000004409 osteocyte Anatomy 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000011541 total hip replacement Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The invention belongs to the field of medical instrument technology, disclose a kind of double acting full hip acetabular component of press-fit fixed pellet head, for solve the problems, such as developmental hip joint depauperation, bone amount be lost, joint or soft tissue is loose etc. leads to that dislocation of hip joint high risk occurs；Structure from outside to inside includes: 1. outer cup (need 3. acetabular bone screw or be not required to 3. acetabular bone screw)；2. liner A；1. outer cup forms the strong fixation of taper fit with 2. liner A, no relative motion, i.e., without articular surface, 2. liner A has a hemispheric interior ball-joint face " ◎ "；4. liner B (the 6. liner for having inlayed 5. metal shell), 5. metal shell has a hemispheric ectosphere articular surface "○", 6. being lined with a hemispheric interior ball-joint face " ◎ ", small bulb has a hemispheric ectosphere articular surface "○", and small bulb passes through the locking for being press-fitted into and being realized in 6. liner to it.2. the interior ball-joint face " ◎ " of liner A and the ectosphere articular surface "○" of 5. metal shell form extrinsic articulation, 6. the ectosphere articular surface "○" of the interior ball-joint face " ◎ " of liner and small bulb forms intrinsic articulation, inside and outside two knuckle shapeds are at double acting full hip acetabular component, feature is double liners, having a double meaning nodal section.This acetabular component is easy for installation, can increase the mobility of prosthese, prevent acetabular bone from dislocating, and reduces wear rate.
Description
Technical field
The invention belongs to medical instruments fields, and in particular to a kind of a kind of press-fit fixation for total hip replacement is small
The double acting full hip acetabular component of bulb.
Background technique
In recent years, as the acceleration of aging of population process, hip joint sufferer are continuously increased, annual compound growth rate reaches
20%, Replacement of Hip Joint becomes effective treatment method of many terminal phase hip joint sufferers, by displacement, can solve
Certainly patient pain, activity difficulty and all kinds of complication, such as: deep vein thrombosis, hypostatic pneumonia and the high-risk disease of bedsore,
And restore the various functions of patient's hip joint, effectively improve quality of life.
The component that popular conventional acetabular component includes currently on the market is as follows: 1. metal outer cup (need 3. acetabular bone screw or
Be not required to 3. acetabular bone screw) (hereinafter referred " outer cup "), 2. (hereinafter referred is " interior for liner for ultra-high molecular weight polyethylene (or modified)
Lining "), 1. outer cup and 2. liner form strong fixation, no relative motion, i.e., without articular surface, be 2. lined with one it is hemispheric in
Spherical joint face (with " ◎ " signal).This acetabular component passes through ball-joint face " ◎ " and small bulb ectosphere articular surface in 2. liner
(being illustrated with "○") forms " enarthrosis ", and small bulb matches to form a whole set of hip prosthesis with femoral stem again.This class formation shows
Intention is detailed in Fig. 1.But such articular prosthesis is loose for complicated hip muscular strength or compromised condition, such as brain paralysis, hemiplegia, small
Youngster's sequela of paralysis and gluteus medius extensive injuries etc. such as carry out traditional hip replacement, then postoperative dislocation rate is very high.
For this management of dislocation following total hip arthroplasty, the 1970's France GillesBousquet and Andr é Rambert propose double acting
Acetabular bone design, the low friction principle of design concept combination Charnley and the major part principle of MacKee are hip Primary replacement
A kind of selection is provided with overhauling of dislocating repeatedly after displacement.
(Homma Y, Baba T, Kobayashi H, the et al.Benefit and risk in short such as Homma
term after total hip arthroplasty by direct anterior approach combined with
Dual mobility cup [J] .Eur J Orthopc Surg Traumato, 2016,26 (6): 1~6.) by France
The tracking discovery of 119, the area MOUSSA patient, in hip joint Primary replacement using the trouble of double acting total hip arthroplasty
Person can preferably relieve pain, postoperative comparatively fast to restore hip joint activity, and displacement rate is low.Thus it proves to carry out double acting full hip
Joint replacement surgery can effectively control displacement rate.
The difference of the domestic and international more double acting acetabular component of certain brand used and traditional acetabular component is 1. outer at present
Cup and be not 2. strong fixation between liner, 1. outer cup Internal Spherical Surface height polishes to form interior ball-joint face " ◎ ", 2. liner manufacture
At ectosphere articular surface "○", thus formed can opposite sliding spherical joint face, remaining structure with conventional acetabular component phase
Together.Based on this design: 2. this is lined with outer spherical articular surface "○" and interior spherical joint face " ◎ ".Such structural schematic diagram is detailed
See Fig. 2.The higher mounting technique of acetabular component needs of this list liner, having a double meaning nodal section, liner need to bear inside and outside two
The frictional force of articular surface and the abrasion for generating two articular surfaces.
Summary of the invention
The object of the present invention is to provide a kind of clinically installations to be more convenient, a kind of more resistant press-fit fixed pellet head
Double acting full hip acetabular component.This acetabular component is easy for installation, can increase the mobility of prosthese, prevent acetabular bone from dislocating, and reduces
Wear rate.
The technical problems to be solved by the invention are achieved by the following technical programs:
A kind of double acting full hip acetabular component of press-fit fixed pellet head, structure from outside to inside include: that 1. outer cup (need to 3.
Acetabular bone screw is not required to 3. acetabular bone screw)；2. liner A；1. outer cup forms the strong fixation of taper fit, no phase with 2. liner A
To movement, i.e., without articular surface, 2. liner A has a hemispheric interior ball-joint face " ◎ "；4. liner B (has inlayed outside 5. metal
The 6. liner of shell), 5. metal shell has a hemispheric ectosphere articular surface "○", is 6. lined with a hemispheric interior ball
Articular surface " ◎ ", small bulb pass through the locking for being press-fitted into and being realized in 6. liner to it.2. the interior ball-joint face " ◎ " of liner A with
5. the ectosphere articular surface "○" of metal shell forms extrinsic articulation, 6. the ectosphere of the interior ball-joint face " ◎ " of liner and small bulb is closed
Nodal section "○" forms intrinsic articulation, and for inside and outside two knuckle shapeds at double acting full hip acetabular component, feature is double liners, having a double meaning nodal section.
This structural representation is detailed in Fig. 3.
Further, interior ball-joint face " ◎ " diameter of the 2. liner A is 30~70mm, and spherical sphericity radial missing is
0.01~0.3mm, male cone (strobilus masculinus) taper are 2~20 °；
Further, the ectosphere articular surface "○" diameter of the 5. metal shell is 29.5~69.5mm, spherical sphericity diameter
It is 0.01~0.3mm to deviation, taper face is made in inside, and taper is 2~20 °, and 2. liner A forms outer pass with 5. metal shell
Section.
Further, interior ball-joint face " ◎ " diameter of the 6. liner is 22.3~40.3mm, and spherical sphericity is radially inclined
Difference is 0.01~0.3mm, and taper is made in outside, and taper is 2~20 °, and by press-fitting, 5. metal shell is formed tightly with 6. liner
Close fit can match to form intrinsic articulation with corresponding small bulb；
Further, the ratio between the long axis of the 1. outer cup outer diameter and short axle are 0.5~2, and inside passes through taper and 2. liner A
Cooperation, taper are 2~20 °.
The invention has the characteristics that
1. the material of outer cup be meet the metal materials such as vitallium as defined in YY 0118, Ti6A14V titanium alloy or its
He is suitble to the one or more of the production 1. implantation material metal material of outer cup.
1. outer cup outer surface is the coating that Bone Ingrowth is convenient in porous structure or outer surface spraying, the coating is to meet YY
Pure titanium, hydroxyapatite etc. as defined in 0118 or other can be used for the one or more of the coating material of implant surface.
1. outer cup is semielliptical shape, by being fixed with pressure in acetabular fossa, or it is aided with 3. acetabular bone screw after press-fitting and fixes.①
Outer cup is fixed in the screw hole of host bone without screw hole or be provided with, and screw hole can be one, be also possible to multiple.
2. the material of liner A is to meet ultra-high molecular weight polyethylene as defined in YY 0118, modified ultra-high molecular weight polyethylene
Deng.
1. outer cup realizes strong fixation by taper fit with 2. liner A, to prevent outer cup liner from revolving in metal outer cup
Turn, the two is without relative motion, i.e., without articular surface.
4. liner B is the assembly that 6. liner has inlayed 5. metal shell outside, 5. metal shell passes through press-fitting with 6. liner
It is fitted close, the two is without relative motion, i.e., without articular surface.5. the material of metal shell is to meet cobalt chrome molybdenum as defined in YY 0118
The metal materials such as alloy, stainless steel, zirconium-niobium alloy or other one kind for being suitble to make the 5. implantation material metal material of metal shell
Or it is a variety of；6. the material of liner is to meet ultra-high molecular weight polyethylene as defined in YY 0118, modified ultra-high molecular weight polyethylene
Deng.
Small bulb is by being press-fitted into 6. liner, and after press-fitting, small bulb can be movable arbitrarily in 4. liner B, 60kg with
Under pulling capacity effect under, small bulb does not fall out 6. liner.
2. the interior ball-joint face " ◎ " of liner A and the ectosphere articular surface "○" of 5. metal shell form extrinsic articulation, 6. liner
Interior ball-joint face " ◎ " and the ectosphere articular surface "○" of small bulb form intrinsic articulation, inside and outside two joints form two activities
Articular bearing surface considerably increases the mobility of prosthese.By the regulation of YY/T 0920-2014: " femoral component and acetabular component
Between range of angular motion should be at least up to following values: 60 ° of abduction/adduction；100 ° of buckling/stretching, extension；90 ° of internal/external rotations ", this patent
Double acting full hip acetabular component mobility reached 135 ° of abduction/adduction；190 ° of buckling/stretching, extension；260 ° of internal/external rotations.Table 1
It is double acting complete for the regulation of the double acting full hip acetabular component of this patent and YY/T 0920-2014, conventional hip prosthesis and certain brand
The mobility of hip acetabular component compares.
The comparison of 1 acetabular component mobility of table
2. liner A, 4. liner B are interior ball-joint faces, and use and meet superhigh molecular weight polyethylene as defined in YY 0118
Alkene, modified ultra-high molecular weight polyethylene etc. are made, and the abrasion between articular surface can be effectively reduced, and have ultra-low abrasion amount, mill
Damage amount is every year in 0.076mm or less.Table 2 is that the double acting full hip acetabular component of this patent and conventional hip prosthesis and certain brand are double
Move the polyethylene liner abrasion loss comparison of full hip acetabular component.
The comparison of 2 polyethylene liner abrasion loss of table
The present invention is described in further details with reference to the accompanying drawings and detailed description, present embodiment is only this hair
Bright preferred forms, not limitation of the invention.
Detailed description of the invention
Fig. 1 is heretofore described conventional acetabular component structural schematic diagram
Fig. 2 is the double acting acetabular component structural schematic diagram of certain heretofore described brand
Fig. 3 is a kind of double acting full hip acetabular component structural schematic diagram of press-fit fixed pellet head of embodiment in the present invention
Fig. 4 is the small bulb activity chart of the present invention
Fig. 5 is range of motion schematic diagram of the present invention
Specific embodiment
As shown in figure 3, figure 4 and figure 5, a kind of double acting full hip acetabular component of press-fit fixed pellet head of the present invention, from outside to
Interior structure includes: 1. outer cup, 2. liner A and 4. liner B.1. outer cup passes through 3. hip by being fixed with pressure in acetabular fossa
Mortar screw is aided with fixation；2. liner A presses supplying 1. outer cup by the conical surface, with prevent 2. liner A rotated in 1. outer cup, formed
Strong fixation, therebetween without relative motion, i.e., without articular surface；4. liner B is the group that 6. liner has inlayed 5. metal shell outside
Zoarium, 6. liner is fitted close with 5. metal shell by press-fitting, and the two is also without relative motion, i.e., without articular surface, small bulb is logical
Cross the locking for being press-fitted into and being realized in 6. liner to it.In joint motion, 2. the interior ball-joint face " ◎ " of liner A with outside 5. metal
The ectosphere articular surface "○" of shell forms extrinsic articulation, 6. the ectosphere articular surface "○" shape of the interior ball-joint face " ◎ " of liner and small bulb
At intrinsic articulation, inside and outside two knuckle shapeds are at double acting full hip acetabular component.
1. outer cup is semielliptical shape, it is made of Ti6A14V titanium alloy forging, the ratio between the long axis of outer diameter and short axle are 0.5
~2.1. outer cup outer surface is the double coatings of pure titanium and hydroxyapatite or pure titanium coating, pore surface is formed, with a thickness of 0.2~
0.5mm facilitates osteocyte and grows into surface micropore to obtain compression steady in a long-term, between reduction host bone and prosthese.
2. liner A is made of high crosslinked ultra-high-molecular-weight polyethylene, the wear resistence of outer cup 2. liner A inner surface can be enhanced
Can, reduce the wear rate of material.2. liner A presses supplying 1. outer cup by the conical surface, 2. ball-joint face " ◎ " diameter in liner A
For 30~70mm, spherical sphericity radial missing is 0.01~0.3mm, and male cone (strobilus masculinus) taper is 2~20 °.
4. liner B is the assembly that 6. liner has inlayed 5. metal shell outside.5. metal shell uses vitallium system
At ectosphere articular surface "○" diameter is 29.5~69.5mm, and spherical sphericity radial missing is 0.01~0.3mm, and inside is made
Taper face, taper are 2~20 °；6. liner is made of high crosslinked ultra-high-molecular-weight polyethylene, 5. metal shell and 6. liner
It is fitted close by press-fitting, 6. interior ball-joint face " ◎ " diameter of liner is 22.3~40.3mm, and spherical sphericity radial missing is
Taper is made in 0.01~0.3mm, outside, and taper is 2~20 °.
Small bulb when prosthese is installed, is pressed by small bulb by being press-fitted into 6. liner by the flexible deformation of 6. liner
6. in liner, realizing the locking to small bulb.After press-fitting, small bulb can be movable arbitrarily in 4. liner B, below in 50kg
Under pulling capacity effect, small bulb does not fall out 6. liner.
2. the interior ball-joint face " ◎ " of liner A and the ectosphere articular surface "○" of 5. metal shell form extrinsic articulation, 6. liner
Interior ball-joint face " ◎ " and the ectosphere articular surface "○" of small bulb form intrinsic articulation, inside and outside two joints form two activities
Articular bearing surface, considerably increases the mobility of prosthese: 135 ° of abduction/adduction；190 ° of buckling/stretching, extension；260 ° of internal/external rotations
(YY/T 0920-2014 regulation: " range of angular motion should be at least up to following values between femoral component and acetabular component: outreach/interior
Receive 60 °；100 ° of buckling/stretching, extension；90 ° of internal/external rotations ").
2. liner A, 4. liner B are interior ball-joint faces, and are made of high crosslinked ultra-high-molecular-weight polyethylene, Ke Yiyou
Effect reduces the abrasion between articular surface, has ultra-low abrasion amount, abrasion loss is every year in 0.076mm or less.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as, as long as obtained in the form of equivalent substitutions or equivalent transformations
Technical solution should all be fallen within the scope and spirit of the invention.
Claims (7)
1. a kind of double acting full hip acetabular component of press-fit fixed pellet head, which is characterized in that structure from outside to inside includes: outer
Cup, liner A and liner B；The outer cup and liner A form strong fixation, no relative motion, i.e., without articular surface, the liner A tool
There is a hemispheric interior ball-joint face " ◎ ", the liner B is made of metal shell and liner, wherein the liner is embedded in
In metal shell；The metal shell has a hemispheric ectosphere articular surface "○", and the liner has a hemispherical
Interior ball-joint face " ◎ "；The interior ball-joint face " ◎ " of the liner A and the ectosphere articular surface "○" of metal shell form outer pass
Section, the interior ball-joint face " ◎ " of the liner and the ectosphere articular surface "○" of small bulb form intrinsic articulation, intrinsic articulation and extrinsic articulation
Two knuckle shapeds are at double acting full hip acetabular component.
2. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 1, which is characterized in that institute
Stating outer cup is semielliptical shape, and the ratio between the long axis of outer diameter and short axle are 0.5~2.
3. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 2, which is characterized in that institute
The screw hole that outer cup is fixed in host bone without screw hole or be provided with is stated, screw hole is one or more.
4. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 1, which is characterized in that institute
Outer cup is stated to fix by being fixed with pressure in acetabular fossa, or after press-fitting by acetabular bone screw.
5. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 1, which is characterized in that institute
Interior ball-joint face " ◎ " diameter for stating liner A is 30~70mm, and spherical sphericity radial missing is 0.01~0.3mm.
6. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 1, which is characterized in that institute
The ectosphere articular surface "○" diameter for stating metal shell is 29.5~69.5mm, and spherical sphericity radial missing is 0.01~0.3mm；Institute
Interior ball-joint face " ◎ " diameter for stating liner is 22.3~40.3mm, and spherical sphericity radial missing is 0.01~0.3mm.
7. a kind of double acting full hip acetabular component of press-fit fixed pellet head according to claim 1, which is characterized in that small
Bulb is by being press-fitted into the liner, and after press-fitting, small bulb can be movable arbitrarily in the liner, in 50kg drawing below
Under power effect, small bulb does not fall out liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140394.3A CN109875727A (en) | 2019-02-21 | 2019-02-21 | A double-action total acetabular prosthesis with a press-fit fixed small ball head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140394.3A CN109875727A (en) | 2019-02-21 | 2019-02-21 | A double-action total acetabular prosthesis with a press-fit fixed small ball head |
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| CN109875727A true CN109875727A (en) | 2019-06-14 |
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|---|---|---|---|
| CN201910140394.3A Pending CN109875727A (en) | 2019-02-21 | 2019-02-21 | A double-action total acetabular prosthesis with a press-fit fixed small ball head |
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|---|---|---|---|---|
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| US20060184251A1 (en) * | 2005-01-07 | 2006-08-17 | Zongtao Zhang | Coated medical devices and methods of making and using |
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| US20150025647A1 (en) * | 2013-07-16 | 2015-01-22 | Howmedica Osteonics Corp. | Dual mobility hip replacement system |
| CN104546227A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Assembled double-acting acetabulum implant |
| CN210077953U (en) * | 2019-02-21 | 2020-02-18 | 吴谢 | Double-acting total hip acetabular prosthesis with small ball head fixed in press-fit manner |
-
2019
- 2019-02-21 CN CN201910140394.3A patent/CN109875727A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879404A (en) * | 1996-04-23 | 1999-03-09 | Biomet Limited | Acetabular cups and methods of their manufacture |
| FR2795302A1 (en) * | 1999-06-23 | 2000-12-29 | Rech S Et De Fabrication S E R | Hip prosthesis comprises a spherical head, a stem and an ambulatory component comprising a polyethylene or metal cup fixed in a cavity, the surfaces contacting the head and the socket being of high friction material |
| DE20011728U1 (en) * | 2000-06-30 | 2000-11-30 | Merete Management GmbH, 10719 Berlin | Tripolar ball head for hip endoprostheses |
| US20060184251A1 (en) * | 2005-01-07 | 2006-08-17 | Zongtao Zhang | Coated medical devices and methods of making and using |
| CN102125472A (en) * | 2011-04-08 | 2011-07-20 | 上海交通大学医学院附属第九人民医院 | Acetabular prosthesis of artificial hip joint with rotational ellipsoid joint interface |
| CN202821719U (en) * | 2012-07-10 | 2013-03-27 | 北京爱康宜诚医疗器材股份有限公司 | Anatomy type double acting whole hip artificial joint |
| US20150025647A1 (en) * | 2013-07-16 | 2015-01-22 | Howmedica Osteonics Corp. | Dual mobility hip replacement system |
| CN104546227A (en) * | 2015-01-07 | 2015-04-29 | 北京爱康宜诚医疗器材股份有限公司 | Assembled double-acting acetabulum implant |
| CN210077953U (en) * | 2019-02-21 | 2020-02-18 | 吴谢 | Double-acting total hip acetabular prosthesis with small ball head fixed in press-fit manner |
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