CN109875728A - A kind of double acting full hip acetabular component of band clasp - Google Patents
A kind of double acting full hip acetabular component of band clasp Download PDFInfo
- Publication number
- CN109875728A CN109875728A CN201910140808.2A CN201910140808A CN109875728A CN 109875728 A CN109875728 A CN 109875728A CN 201910140808 A CN201910140808 A CN 201910140808A CN 109875728 A CN109875728 A CN 109875728A
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- Prior art keywords
- liner
- double acting
- acetabular component
- joint face
- articular surface
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Abstract
The invention belongs to the field of medical instrument technology, disclose a kind of double acting full hip acetabular component of band clasp, 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, its structure from outside to inside includes: 1. outer cup (needs 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 "○", is 6. lined with a hemispheric interior ball-joint face " ◎ "；7. snap ring.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.7. 6. snap ring merging in liner, has anti-dislocation to act on small bulb.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 band clasp for total hip replacement it is double acting
Full hip acetabular component.
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 double acting full hip of more resistant band clasp
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 band clasp, structure from outside to inside include: 1. outer cup (need 3. acetabular bone screw or
It is not required to 3. acetabular bone screw)；2. liner A；1. the strong fixation of outer cup and 2. liner A formation taper fit, no relative motion, i.e.,
Without articular surface, 2. liner A has a hemispheric interior ball-joint face " ◎ "；4. liner B (inlayed 5. metal shell 6. in
Lining), 5. metal shell has a hemispheric ectosphere articular surface "○", is 6. lined with a hemispheric interior ball-joint face
"◎"；7. snap ring.2. the interior ball-joint face " ◎ " of liner A and the ectosphere articular surface "○" of 5. metal shell form extrinsic articulation, 6.
The interior ball-joint face " ◎ " of liner and the ectosphere articular surface "○" of small bulb form intrinsic articulation, and inside and outside two knuckle shapeds are at double acting
Full hip acetabular component, feature are 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 °.
Further, the 7. snap ring is placed in 6. liner, has anti-dislocation to act on small bulb.
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, Ti6Al4V 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
Alloy, stainless steel and other metal materials or other be suitble to the one or more of the production 5. implantation material metal material of metal shell；⑥
The material of liner is to meet ultra-high molecular weight polyethylene as defined in YY 0118, modified ultra-high molecular weight polyethylene etc..
7. the material of snap ring is to meet ultra-high molecular weight polyethylene as defined in YY 0118, modified ultra-high molecular weight polyethylene
Deng.
7. snap ring merging is 6. in liner, when prosthese is installed, by the flexible deformation for the 7. snap ring of being open 6. small bulb is pressed into
In the card slot of liner, the locking to small bulb is realized.
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 band clasp 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 band clasp of the present invention, structure packet from outside to inside
It includes: 1. outer cup, 2. liner A, 4. liner B and 7. snap ring.1. outer cup passes through 3. acetabular bone spiral shell by being fixed with pressure in acetabular fossa
Nail 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, it is strong to be formed
It is fixed, therebetween without relative motion, i.e., without articular surface；4. liner B is the assembly that 6. liner has inlayed 5. metal shell outside,
6. liner is fitted close with 5. metal shell by press-fitting, the two is also without relative motion, i.e., without articular surface；7. in snap ring merging 6.
In lining, there is anti-dislocation to act on small bulb.In joint motion, the 2. interior ball-joint face " ◎ " of liner A and 5. metal shell
Ectosphere articular surface "○" forms extrinsic articulation, and 6. the interior ball-joint face " ◎ " of liner and the ectosphere articular surface "○" of small bulb form interior
Joint, inside and outside two knuckle shapeds are at double acting full hip acetabular component.
1. outer cup is semielliptical shape, it is made of Ti6Al4V 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 °.
7. snap ring is made of high crosslinked ultra-high-molecular-weight polyethylene, 6. merging in liner, when prosthese is installed, passes through opening
7. small bulb is pressed into the 6. card slot of liner by the flexible deformation of snap ring, the locking to small bulb is realized.
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 band clasp, which is characterized in that structure from outside to inside include: outer cup, liner A,
Liner B and snap ring；The outer cup and liner A form strong fixation, and no relative motion, i.e., without articular surface, the liner A has one
A hemispheric interior ball-joint face " ◎ ", the liner B is made of metal shell and liner, wherein the liner is embedded in metal
In shell；The metal shell has a hemispheric ectosphere articular surface "○", and the liner is hemispheric interior with one
Ball-joint face " ◎ "；The interior ball-joint face " ◎ " of the liner A and the ectosphere articular surface "○" of metal shell form extrinsic articulation, institute
The ectosphere articular surface "○" of the interior ball-joint face " ◎ " and small bulb of stating liner forms intrinsic articulation, intrinsic articulation and extrinsic articulation two passes
Section forms double acting full hip acetabular component；The snap ring is placed in the liner.
2. a kind of double acting full hip acetabular component of band clasp according to claim 1, which is characterized in that the outer cup is half
Elliposoidal, 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 band clasp according to claim 2, which is characterized in that the outer cup is without spiral shell
Nail hole is provided with the screw hole for being fixed in host bone, and screw hole is one or more.
4. a kind of double acting full hip acetabular component of band clasp according to claim 1, which is characterized in that the outer cup passes through
It is fixed with pressure in acetabular fossa, or is fixed after press-fitting by acetabular bone screw.
5. a kind of double acting full hip acetabular component of band clasp according to claim 1, which is characterized in that the liner A's
Interior ball-joint face " ◎ " diameter is 30~70mm, and spherical sphericity radial missing is 0.01~0.3mm.
6. a kind of double acting full hip acetabular component of band clasp according to claim 1, which is characterized in that the metal shell
Ectosphere articular surface "○" diameter be 29.5~69.5mm, spherical sphericity radial missing be 0.01~0.3mm；The liner it is interior
Ball-joint face " ◎ " diameter 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 band clasp according to claim 1, which is characterized in that the snap ring merging
In the liner, the snap ring has opening；When prosthese is installed, small bulb is pressed by the liner by the flexible deformation of snap ring
Card slot in, realize locking to small bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140808.2A CN109875728A (en) | 2019-02-21 | 2019-02-21 | A kind of double acting full hip acetabular component of band clasp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140808.2A CN109875728A (en) | 2019-02-21 | 2019-02-21 | A kind of double acting full hip acetabular component of band clasp |
Publications (1)
| Publication Number | Publication Date |
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| CN109875728A true CN109875728A (en) | 2019-06-14 |
Family
ID=66929276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910140808.2A Pending CN109875728A (en) | 2019-02-21 | 2019-02-21 | A kind of double acting full hip acetabular component of band clasp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603275A (en) * | 2020-06-01 | 2020-09-01 | 天衍医疗器材有限公司 | Integrated acetabular cup liner and preparation process thereof |
| CN112075990A (en) * | 2020-09-29 | 2020-12-15 | 华侨大学 | Calcaneus prosthesis with spherical porous filling structure and optimal design method thereof |
| CN112869917A (en) * | 2020-12-30 | 2021-06-01 | 北京中安泰华科技有限公司 | Double-acting full acetabulum printed by 3D |
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| US6042612A (en) * | 1996-02-02 | 2000-03-28 | Voydeville; Gilles | Non-dislocatable low-wear hip prosthesis |
| DE20011728U1 (en) * | 2000-06-30 | 2000-11-30 | Merete Man Gmbh | Tripolar ball head for hip endoprostheses |
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| EP1813227A2 (en) * | 2000-03-15 | 2007-08-01 | DePuy Orthopaedics, Inc. | Prosthetic cup assembly which includes components possessing self-locking taper |
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| 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 |
| CN104783932A (en) * | 2015-05-08 | 2015-07-22 | 北京爱康宜诚医疗器材股份有限公司 | Acetabulum prosthesis |
| CN106388979A (en) * | 2016-10-31 | 2017-02-15 | 优适医疗科技（苏州）有限公司 | Novel double-action hip joint prosthesis |
| CN108042243A (en) * | 2018-01-17 | 2018-05-18 | 上海科太迈迪医疗器械有限公司 | Integral acetabular component of cup lining and preparation method thereof |
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| US6042612A (en) * | 1996-02-02 | 2000-03-28 | Voydeville; Gilles | Non-dislocatable low-wear hip prosthesis |
| CN2343991Y (en) * | 1998-10-30 | 1999-10-20 | 北京普鲁斯钢研外科植入物有限公司 | Artificial joint half-hip two active head device |
| EP1813227A2 (en) * | 2000-03-15 | 2007-08-01 | DePuy Orthopaedics, Inc. | Prosthetic cup assembly which includes components possessing self-locking taper |
| DE20011728U1 (en) * | 2000-06-30 | 2000-11-30 | Merete Man Gmbh | Tripolar ball head for hip endoprostheses |
| CN2657613Y (en) * | 2003-11-24 | 2004-11-24 | 吴栋 | Whole hip metal acetabulum of artificial hip joint |
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| CN106388979A (en) * | 2016-10-31 | 2017-02-15 | 优适医疗科技（苏州）有限公司 | Novel double-action hip joint prosthesis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111603275A (en) * | 2020-06-01 | 2020-09-01 | 天衍医疗器材有限公司 | Integrated acetabular cup liner and preparation process thereof |
| CN112075990A (en) * | 2020-09-29 | 2020-12-15 | 华侨大学 | Calcaneus prosthesis with spherical porous filling structure and optimal design method thereof |
| CN112869917A (en) * | 2020-12-30 | 2021-06-01 | 北京中安泰华科技有限公司 | Double-acting full acetabulum printed by 3D |
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Application publication date: 20190614 |
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