CN102188298A - Biotype femoral head surface substitutive prosthesis - Google Patents
Biotype femoral head surface substitutive prosthesis Download PDFInfo
- Publication number
- CN102188298A CN102188298A CN2011101043477A CN201110104347A CN102188298A CN 102188298 A CN102188298 A CN 102188298A CN 2011101043477 A CN2011101043477 A CN 2011101043477A CN 201110104347 A CN201110104347 A CN 201110104347A CN 102188298 A CN102188298 A CN 102188298A
- Authority
- CN
- China
- Prior art keywords
- femur
- neck
- femoral head
- tube
- hollow pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims description 23
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 7
- 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 claims description 7
- 210000000689 upper leg Anatomy 0.000 abstract description 39
- 108010048734 sclerotin Proteins 0.000 abstract description 15
- 210000000988 bone and bone Anatomy 0.000 abstract description 11
- 239000002639 bone cement Substances 0.000 abstract description 10
- 210000004394 hip joint Anatomy 0.000 abstract description 5
- -1 and thus Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 210000001624 hip Anatomy 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000007875 Femur Head Necrosis Diseases 0.000 description 1
- 206010016454 Femur fracture Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000001981 hip bone Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 210000004409 osteocyte Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- 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
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 invention discloses a biotype femoral head surface substitutive prosthesis, which comprises a single cup and a central rod, wherein the central rod is a hollow tube consisting of a tube cavity and a tube wall, the tube wall has external threads, the tube wall has 10 to 18 growing through holes communicated with the tube cavity, and the diameter of the growing through holes is 0.3 to 0.5 millimeters. Thus, during an operation, surface correction instead of cutting neck of femur is needed, the hollow tube is screwed into and fixed in a bone cavity of the neck of femur, the hollow tube is in screwed connection with the neck of femur, the hollow tube is firmly fixed with the neck of femur without filling bone cement, and thus, bone cement looseness caused by mechanical wear is prevented; and as biomechanic properties of original hip joint are kept by keeping the neck of femur, sclerotin is implanted into the tube cavity, the sclerotin in and out of the hollow tube grow in the growing through holes in a restore process and gradually fused together to fuse the hollow tube and the neck of femur together completely. Therefore, the neck of femur and the prosthesis are bonded firmly, the prosthesis can be used for a long time, and the service life of the prosthesis is prolonged.
Description
Technical field
The present invention relates to the artificial hip prosthesis, be specifically related to a kind of biotype femoral head surface replacement prosthese.
Background technology
The artificial hip prosthesis comprises acetabular component and femoral head prosthesis, and acetabular component and hipbone are fixed, and femoral head prosthesis and femur are fixed, and can be used for femur head necrosis and fracture of the femoral head patient's femoral head surface replacement, promotes patient's life quality.Hip joint surface replacement technology has nearly 50 years history, all innovations to some extent on material and structure, be coated with hydroxyapatite or titanium valve as the biotype prosthese at the bone contact surface, and form micropore surface layer (being rough surface), can impel osteocyte to grow into generates with the fibrous membrane of forgoing in the micropore, help bone trabecula to grow into, sclerotin and prosthese interface stability connect more firm.Present femoral head surface replacement borrowed structure such as Granted publication number are the utility model patent of CN2528411, comprise center-pole and hemispheroidal single glass, center-pole is solid, outer surface is provided with groove and is beneficial to bone cement etc. and is adhesively fixed, single glass of smooth outer surface and acetabular component are supporting, inner surface (perhaps coarse have micropore) is provided with groove and is beneficial to sclerotin to infiltrate growth bonding, and center-pole is pegged graft and fixed with single glass.At first with femoral head and neck of femur excision, again center-pole is inserted in the femur bone cavity, and fill the space during operation, reach the purpose that is adhesively fixed with femur, then single glass is fixed on the center-pole with bone cement.But need excise neck of femur during the operation of present femoral head surface replacement prosthese, the excision face of femur is bigger, and neck of femur lacks substantially, has changed the original biomechanics characteristic of hip joint, and it is uneven to walk, and femoral head prosthesis is easily loosening; The bone cement of filling between sclerotin and prosthese also because long-term mechanicalness abrasion generation is loosening, causes prosthese and femur bonding not firm, and the prosthese life-span is shorter; Just femoral head prosthesis be need repeatedly change between twenty and fifty patient, repeatedly perform the operation misery and financial burden caused like this.
Summary of the invention
Keep neck of femur when technical problem to be solved by this invention provides a kind of operation, and femur and prosthese bonding are firmly, the biotype femoral head surface replacement prosthese that the prosthese life-span is grown.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of biotype femoral head surface replacement prosthese, comprise single glass and center-pole, described center-pole is the hollow pipe of the hollow be made up of tube chamber and tube wall, described tube wall is provided with external screw thread, described tube wall is provided with 10-18 the growth through hole that communicates with described tube chamber, and the diameter of described growth through hole is the 0.3-0.5 millimeter.Owing to fix for precession between hollow pipe of the present invention and the femur, fixing jail, so need not neck of femur is excised during operation, as long as the surface is revised, again hollow pipe is screwed in the bone cavity of neck of femur, do not need simultaneously to fill yet, just avoided the mechanicalness abrasion to cause the generation of the loosening phenomenon of bone cement with bone cement; The sclerotin of sclerotin of implanting in tube chamber and hollow pipe outer surface is grown mutually, merge mutually by the growth through hole, thereby make hollow pipe and neck of femur by the bone trabecula bridge joint, just merge fully in time, therefore neck of femur and this prosthese bonding is very firm, but this femur side prosthesis life-time service need not to change substantially.
The pipe thickness of described hollow pipe is 0.5-1 centimetre, and the diameter of described tube chamber is 1.0-1.5 centimetre; After this lumen diameter and pipe thickness suitability and the body mechanics test, be more blanket hollow pipe, and weight capacity suits also when prosthese and sclerotin do not bond fully.
The pipe thickness of described hollow pipe is 0.6 centimetre, and the diameter of described tube chamber is 1.3 centimetres; This ratio hollow pipe suitability is big, and bearing is also preferable.
Be provided with the intubate of inserting described tube chamber in described single glass; The hollow pipe precession after tube chamber is inserted sclerotin, as long as with intubate insertion tube intracavity, is just fixed with hollow pipe, is inserted more convenient like this for single glass.This intubate also can substitute with a pair of tongue sheet; Perhaps as the application for a patent for invention that publication number is CN101947149, establish running-on in single glass, hollow pipe is socketed in single glass etc., does not describe in detail one by one at this.
The lateral surface of described intubate is the inclined-plane, and the inner surface of the tube wall of described hollow pipe is provided with the inclined-plane that matches with the lateral surface of described intubate; More convenient like this installation operation.
The inclined-plane of described intubate and the angle between the vertical line are 20 degree, and the inclined-plane of the tube wall of described hollow pipe and the angle between the vertical line are 20 degree, and this angle is more suitable aspect property easy for installation and fixed effect.
Described single glass inner surface is coarse hydroxyapatite layer, helps the bone trabecula of single glass inner surface to grow into.
The surfaces externally and internally of described hollow pipe is coarse hydroxyapatite layer, helps the bone trabecula of the surfaces externally and internally of hollow pipe to grow into.
Compared with prior art, the invention has the advantages that a kind of biotype femoral head surface replacement prosthese, comprise single glass and center-pole, center-pole is the hollow pipe of the hollow be made up of tube chamber and tube wall, tube wall is provided with external screw thread, tube wall is provided with 10-18 the growth through hole that communicates with tube chamber, and the diameter of growth through hole is the 0.3-0.5 millimeter; When performing the operation like this, need not excise neck of femur, just the surface is revised, the hollow pipe precession is fixed in the bone cavity of neck of femur, hollow pipe and neck of femur spin, the fixing jail of hollow pipe and neck of femur, just need not bone cement and fill, avoided the mechanicalness abrasion to cause the generation of the loosening phenomenon of bone cement; Simultaneously owing to keep neck of femur, the biomechanics characteristic that has kept original hip joint, implant sclerotin in the tube chamber, the inside and outside sclerotin of recovery process hollow core barrel will be grown in the growth through hole, merge mutually gradually, hollow pipe and neck of femur are merged fully, so femur and this prosthese bonding is very firm, but this prosthese life-time service, the prosthese life-span is long.
Description of drawings
Fig. 1 is the biotype femoral head surface replacement borrowed structure cross-sectional schematic of embodiment 1;
Fig. 2 is the biotype femoral head surface replacement prosthese assembling sketch map of embodiment 1;
Fig. 3 is single glass of cross-sectional schematic in the biotype femoral head surface replacement prosthese of embodiment 2.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment 1
A kind of biotype femoral head surface replacement prosthese as depicted in figs. 1 and 2, comprise single glass 1 and center-pole, center-pole is the hollow pipe 2 of the hollow be made up of tube chamber 4 and tube wall 3, tube wall 3 thickness are 0.6 centimetre, the diameter of tube chamber 4 is 1.3 centimetres, tube wall 3 is provided with external screw thread 5, tube wall 3 is provided with 10-18 the growth through hole 6 that communicates with tube chamber 4, the diameter of growth through hole 6 is the 0.3-0.5 millimeter, be provided with the intubate 7 of inserting tube chamber 4 in single glass 1, the lateral surface 71 of intubate 7 is the inclined-plane, this inclined-plane and and vertical line between angle be 20 the degree, the inner surface 31 of the tube wall 3 of hollow pipe 2 is provided with the inclined-plane 311 that matches with the lateral surface 71 of intubate 7, this inclined-plane 311 and and vertical line between angle also be 20 the degree, single glass 1 inner surface 11 is coarse hydroxyapatite layer, single glass 1 outer surface 12 smooth suitable activities, and the inner surface 31 of hollow pipe and outer surface 32 also are coarse hydroxyapatite layer.At first excise femoral head during operation, keep neck of femur, the operation of neck of femur surface is revised, preserve the sclerotin of revising standby, then hollow pipe 2 is screwed in the bone cavity of neck of femur, hollow pipe 2 diameters are larger than the neck of femur bone cavity, make tube wall 3 and neck of femur fixation, implant standby sclerotin at the tube chamber 4 of hollow pipe 2, again single glass 1 intubate 7 being aimed at tube chamber 4 is seated, single glass 1 just fixing with hollow pipe 2, kept neck of femur in the operation substantially, just replaces femoral head, so the hip joint biomechanics characteristic remains unchanged substantially, because hollow pipe and neck of femur spin fixingly, fixation does not need the bone cement filling yet again, avoided loosening phenomenon to take place, in servicing operations, the outer sclerotin of sclerotin and tube wall is grown in time in the tube chamber simultaneously, merges in the growth through hole of growing into mutually, tightly hollow pipe is wrapped, therefore hollow pipe and femur merge, but life-time service need not to change.
Basic identical with embodiment, on different just as shown in Figure 2 single glasss 1 intubate 7 replace by a pair of tongue sheet 8, tube wall 3 thickness are 0.5 centimetre, the diameter of tube chamber 4 is 1.0 centimetres.
Basic identical with embodiment, different just tube wall 3 thickness be 1.0 centimetres, the diameter of tube chamber 4 is 1.5 centimetres.
The growth through hole can be established 10,12,15 or 18 etc. in the foregoing description, under hollow pipe load-bearing permissive condition, mostly be with the growth via count, be beneficial to the inside and outside bony fusion level of hollow pipe, but prevent the bearing capacity deficiency of hollow pipe when also not merging fully with femur, so that we are selected in after biomechanics checking in 10-18 the scope is better; Its diameter can be 0.3,0.4 or 0.5 millimeter etc., also is under hollow pipe load-bearing permissive condition the growth hole size to be set.
Claims (9)
1. biotype femoral head surface replacement prosthese, comprise single glass and center-pole, it is characterized in that the hollow pipe of described center-pole for the hollow formed by tube chamber and tube wall, described tube wall is provided with external screw thread, described tube wall is provided with 10-18 the growth through hole that communicates with described tube chamber, and the diameter of described growth through hole is the 0.3-0.5 millimeter.
2. a kind of biotype femoral head surface replacement prosthese as claimed in claim 1, the pipe thickness that it is characterized in that described hollow pipe is 0.5-1 centimetre, the diameter of described tube chamber is 1.0-1.5 centimetre.
3. a kind of biotype femoral head surface replacement prosthese as claimed in claim 2, the pipe thickness that it is characterized in that described hollow pipe is 0.6 centimetre, the diameter of described tube chamber is 1.3 centimetres.
4. a kind of biotype femoral head surface replacement prosthese as claimed in claim 1 is characterized in that being provided with in described single glass the intubate of inserting described tube chamber.
5. a kind of biotype femoral head surface replacement prosthese as claimed in claim 4, the lateral surface that it is characterized in that described intubate is the inclined-plane, the inner surface of the tube wall of described hollow pipe is provided with the inclined-plane that matches with the lateral surface of described intubate.
6. a kind of biotype femoral head surface replacement prosthese as claimed in claim 5 is characterized in that the inclined-plane of described intubate and the angle between the vertical line are 20 degree, and the inclined-plane of the tube wall of described hollow pipe and the angle between the vertical line are 20 degree.
7. a kind of biotype femoral head surface replacement prosthese as claimed in claim 1 is characterized in that being provided with in described single glass a pair of tongue sheet that inserts described tube chamber.
8. a kind of biotype femoral head surface replacement prosthese as claimed in claim 1 is characterized in that described single glass inner surface is coarse hydroxyapatite layer.
9. a kind of biotype femoral head surface replacement prosthese as claimed in claim 1, the surfaces externally and internally that it is characterized in that described hollow pipe is coarse hydroxyapatite layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101043477A CN102188298A (en) | 2011-07-13 | 2011-07-13 | Biotype femoral head surface substitutive prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101043477A CN102188298A (en) | 2011-07-13 | 2011-07-13 | Biotype femoral head surface substitutive prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102188298A true CN102188298A (en) | 2011-09-21 |
Family
ID=44597745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101043477A Pending CN102188298A (en) | 2011-07-13 | 2011-07-13 | Biotype femoral head surface substitutive prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102188298A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464216A (en) * | 2017-09-07 | 2019-03-15 | 重庆润泽医药有限公司 | A kind of operation tantalum stick |
| CN111227995A (en) * | 2020-03-19 | 2020-06-05 | 闫新峰 | Femoral head prosthesis component |
| CN111529136A (en) * | 2020-04-26 | 2020-08-14 | 北京力达康科技有限公司 | Femoral head resurfacing prosthesis |
| CN111616839A (en) * | 2020-06-01 | 2020-09-04 | 北京爱康宜诚医疗器材有限公司 | Replacement prostheses and surgical tools for hemi-hip joints |
| CN114224567A (en) * | 2021-12-18 | 2022-03-25 | 河北春立航诺新材料科技有限公司 | Femoral head surface replacement prosthesis and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2528411Y (en) * | 2002-01-25 | 2003-01-01 | 孙俊英 | Femoral head surface substitutive prosthesis |
| EP1570811A1 (en) * | 2004-03-03 | 2005-09-07 | Centerpulse Orthopedics Ltd. | Femoral head prosthesis |
| CN101023892A (en) * | 2007-03-28 | 2007-08-29 | 冀原 | Artificial hip joint femur-end artificial body |
| CN200994837Y (en) * | 2007-01-12 | 2007-12-26 | 张海宁 | Medical implanter |
| EP1990026A2 (en) * | 2007-05-01 | 2008-11-12 | Arthrex, Inc. | Partial humeral head prosthesis |
| CN101708136A (en) * | 2009-02-12 | 2010-05-19 | 北京爱康宜诚医疗器材有限公司 | Artificial bone fusion caput femoris nested in collum femoris |
| CN102028566A (en) * | 2010-12-06 | 2011-04-27 | 北京畅想天行医疗技术有限公司 | Inner supporting frame for femoral head |
-
2011
- 2011-07-13 CN CN2011101043477A patent/CN102188298A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2528411Y (en) * | 2002-01-25 | 2003-01-01 | 孙俊英 | Femoral head surface substitutive prosthesis |
| EP1570811A1 (en) * | 2004-03-03 | 2005-09-07 | Centerpulse Orthopedics Ltd. | Femoral head prosthesis |
| CN200994837Y (en) * | 2007-01-12 | 2007-12-26 | 张海宁 | Medical implanter |
| CN101023892A (en) * | 2007-03-28 | 2007-08-29 | 冀原 | Artificial hip joint femur-end artificial body |
| EP1990026A2 (en) * | 2007-05-01 | 2008-11-12 | Arthrex, Inc. | Partial humeral head prosthesis |
| CN101708136A (en) * | 2009-02-12 | 2010-05-19 | 北京爱康宜诚医疗器材有限公司 | Artificial bone fusion caput femoris nested in collum femoris |
| CN102028566A (en) * | 2010-12-06 | 2011-04-27 | 北京畅想天行医疗技术有限公司 | Inner supporting frame for femoral head |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109464216A (en) * | 2017-09-07 | 2019-03-15 | 重庆润泽医药有限公司 | A kind of operation tantalum stick |
| CN111227995A (en) * | 2020-03-19 | 2020-06-05 | 闫新峰 | Femoral head prosthesis component |
| CN111227995B (en) * | 2020-03-19 | 2022-02-15 | 闫新峰 | A femoral head prosthesis component |
| CN111529136A (en) * | 2020-04-26 | 2020-08-14 | 北京力达康科技有限公司 | Femoral head resurfacing prosthesis |
| CN111616839A (en) * | 2020-06-01 | 2020-09-04 | 北京爱康宜诚医疗器材有限公司 | Replacement prostheses and surgical tools for hemi-hip joints |
| CN111616839B (en) * | 2020-06-01 | 2024-12-27 | 北京爱康宜诚医疗器材有限公司 | Hemi-hip replacement prosthesis and surgical tools |
| CN114224567A (en) * | 2021-12-18 | 2022-03-25 | 河北春立航诺新材料科技有限公司 | Femoral head surface replacement prosthesis and manufacturing method thereof |
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Application publication date: 20110921 |