CN201755260U - Bone trabecula micropore surface artificial hip joint - Google Patents
Bone trabecula micropore surface artificial hip joint Download PDFInfo
- Publication number
- CN201755260U CN201755260U CN 201020193724 CN201020193724U CN201755260U CN 201755260 U CN201755260 U CN 201755260U CN 201020193724 CN201020193724 CN 201020193724 CN 201020193724 U CN201020193724 U CN 201020193724U CN 201755260 U CN201755260 U CN 201755260U
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- CN
- China
- Prior art keywords
- bone trabecula
- hip joint
- artificial hip
- microporous
- femoral stem
- 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.)
- Expired - Lifetime
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Classifications
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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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The utility model discloses a bone trabecula micropore surface artificial hip joint, which is designed to solve the problem of secondary operation repairing caused by a later loose or sunk acetabular or femoral stem existing in a traditional artificial hip joint. The bone trabecula micropore surface artificial hip joint comprises a femoral stem body, wherein a stem neck is arranged at an upper end of the femoral stem body and is in socket joint with an acetabular liner. A femoral ball head is in socket joint with the external of the acetabular liner. An acetabular cup is in socket joint with the external of the femoral ball head. Outer surfaces of the femoral stem body and the acetabular cup integrally form a bone trabecula micropore layer. After the artificial hip joint of the utility model is implanted into a human body, the artificial hip joint and natural bones can be integrally fixed, effectively enhancing the fixing effect, preventing the artificial hip joint from loosening or sinking for a long time and prolonging the service lifetime.
Description
Technical field
This utility model relates to a kind of artificial hip joint, relates in particular to the artificial hip joint that a kind of surface of using in the surgery joint replacement surgery has bone trabecula microporous layer, belongs to technical field of medical instruments.
Background technology
At present, the artificial hip joint replacing operation, become the medical circle treatment hip joint a kind of unique effective method that the class disease generally adopts of disabling, in this operation, acetabular bone that implant in the postoperative joint and the fixed effect between femoral stem and the natural bone are the decision artificial joint keys in service life.Fixing means commonly used now has two kinds, and a kind of is the bone cement technique for fixing that is applicable to elderly patient, and another kind is the biological fixation technology that is applicable to young patient.Wherein, general biological fixation technology forms the micropore surface layer by methods such as pellet sintering or the braidings of titanium silk on acetabular bone and femoral stem, for growing into of osteocyte creates conditions, yet the porosity of this microporous layers is low, 10-20% is only arranged, and the osteocyte amount of growing into is few and trickle.In addition, also a large amount of in recent years modes that adopt at acetabular bone and femoral stem surface spraying titanium valve or spraying hydroxyapatite induce osteocyte to grow into by titanium valve or hydroxyapatite, and be attached to realize on the rough surface of prosthese fixing.Above-mentioned various biological fixation method, through clinical confirmation for many years, frequent appearance makes troubles and misery to the patient because of loosening, the sinking of late period acetabular bone or femoral stem cause second operation to be overhauled.
Bone trabecula is the extension of cortical bone in spongy bone, be that bone trabecula is connected with cortical bone, in cortical bone, form irregular space network, as Retinervus Luffae Fructus sample or spongy, between network, form the micropore of countless mutual perforations, these micropores play supporting role, for soft tissue and vascularization provide the growing space.
The utility model content
The purpose of this utility model provides a kind of artificial hip joint on bone trabecula microporous surface, and this artificial hip joint can be realized the integrated fixing of prosthese and natural bone, prevents the loosening and sinking of prosthese.
For achieving the above object, this utility model adopts following technical scheme:
The artificial hip joint on bone trabecula microporous surface that this utility model provides, comprise a femoral stem body, the upper end of this femoral stem body is provided with the handle neck, be socketed with the femur bulb on this handle neck, this femur bulb overcoat is connected to the mortar lining, the outer acetabular cup that is socketed with of this mortar lining, described femoral stem body and acetabular cup outer surface are formed with bone trabecula microporous layer.
Wherein, the outer surface of described bone trabecula microporous layer is provided with hydroxyapatite coating layer or titanium valve layer.
Further, the outer surface and the surface of internal cavity of described bone trabecula microporous layer are provided with hydroxyapatite coating layer or titanium valve layer.
The thickness of described bone trabecula microporous layer is 0.5--10mm.
Described bone trabecula microporous layer is the Retinervus Luffae Fructus shape, is connected and composed by metal bar rule and/or irregular being interweaved.
The diameter of described metal bar is 0.1--3mm.
The material of described metal bar is titanium alloy or cobalt alloy.
Described femoral stem body top is tapered from top to bottom excessively, and inboard tapered excessive by the lateral, femoral stem body upper inner is interior circular arc; The external side of femoral stem is shape linearly.
The bone trabecula microporous layer of described femoral stem external surface is arranged on the outer surface on handle body top or is arranged on the outer surface of whole handle body.
The artificial hip joint on bone trabecula microporous surface that this utility model provides, be bone trabecula microporous layer to be set at femoral stem body that has the artificial hip prosthesis now and acetabular cup outer surface, this bone trabecula microporous layer is the Retinervus Luffae Fructus shape, connect and compose by metal bar rule or irregular being interweaved, formation is similar to bone trabecular architectural feature, porosity reaches 50-80%, and intensity is between cortical bone and the spongy bone; Behind artificial hip joint implant into body of the present utility model, the osteocyte president that human body natural's bone bears goes in the microporous layers, in microporous layers, be interweaved,, and follow soft tissue to grow into and the vascularization generation around locking, form new bone trabecula, natural bone and prosthese are grown together, thereby realize the integrated fixing of prosthese and natural bone, strengthen fixed effect effectively, can prevent the loosening and sinking of articular prosthesis for a long time, increase the service life.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sketch map of this utility model artificial hip joint on bone trabecula microporous surface;
Fig. 2 is the assembled sectional view of femoral stem body, handle neck, femur bulb and the acetabular bone of this utility model artificial hip joint on bone trabecula microporous surface;
Fig. 3 is the structural representation of femoral stem body shown in Figure 2 and handle neck;
Fig. 4 is the cutaway view of femur bulb shown in Figure 2;
Fig. 5 is the cutaway view of acetabular cup shown in Figure 2;
Fig. 6 is the cutaway view of acetabular bone lining shown in Figure 2;
Fig. 7 is the A portion enlarged diagram of bone trabecula microporous layer shown in Figure 1;
Fig. 8 is the B portion enlarged diagram of bone trabecula microporous layer shown in Figure 2;
Fig. 9 is the perspective view of the bone trabecula microporous layer of this utility model artificial hip joint on bone trabecula microporous surface.
The specific embodiment
In order to make those skilled in the art person understand this utility model scheme better, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, this utility model is described in further detail below in conjunction with drawings and Examples.
The preferred embodiment of the artificial hip joint on bone trabecula microporous surface that this utility model provides, as described in Figure 1, described artificial hip joint comprises a femoral stem body 10, as shown in Figure 2, the upper end of this femoral stem body 10 is provided with handle neck 20, be socketed with femur bulb 30 on these handle neck 20 1 ends, these femur bulb 30 outer acetabular bones 40 that are socketed with.This utility model artificial hip joint is used for the human hip of replace damaged, as shown in Figure 1, during use, described artificial hip joint implant into body hip joint position, insert in the human femur under loading pulp cavity with the lower end of described femoral stem body 10, agree with described human femur under loading pulp cavity until described femoral stem body 10, in the described acetabular bone 40 implant into body acetabular fossa.
As shown in Figure 3, the shape of described femoral stem body 10 and the spatial shape of human femur under loading pulp cavity match, and make things convenient for femoral stem body 10 to insert in the femoral bone cavitas medullaris; The upper inner of described femoral stem body 10 extends internally and forms handle neck 20, and femoral stem body 10 tops sectional area from top to bottom diminish gradually, sinks in order to prevent femoral stem body 10; Femoral stem body 10 tops 16 are sectional area and diminish gradually to the inside by the outside 15, turn in the femoral stem body 10 in order to preventing; Described femoral stem body 10 upper inner are interior circular arc, and femoral stem body 10 outsides are shape linearly, match with the physiology shape of human femur under loading pulp cavity, are beneficial in the femoral stem body 10 implant into body femoral bone cavitas medullaris.
Described femur bulb 30 has the truncated cone-shaped groove, be socketed in the outside, truncated cone-shaped end of described handle neck 20, as shown in Figure 4, the truncated cone-shaped groove of this femur bulb 30 and the truncated cone-shaped end of handle neck 20, its smaller diameter end is arranged on femoral stem body 10 ends far away, and larger diameter end is arranged on nearly femoral stem body 10 ends, makes after femur bulb 30 and 20 sockets of handle neck, under the pressure of human body weight, pressure is tight more more can not come off.
As shown in Figure 2, described acetabular bone 40 is made up of hemispherical metal acetabular cup 41 and the polyethylene mortars lining 42 that is enclosed within the acetabular cup 41, as shown in Figure 6, have the spherical groove suitable in this mortar lining 42 with femur bulb 30, mortar lining 42 is socketed in outside the femur bulb 30, femur bulb 30 can serve as a contrast in 42 at mortar and freely rotate, and realizes the human hip movable function; As shown in Figure 5, the outer surface of acetabular cup 41 is equipped with through hole 45, in order to be connected auxiliary fixedly acetabular bone 40 with screw.
Described femoral stem body 10 and acetabular cup 41 outer surfaces are formed with bone trabecula microporous layer 50, and the thickness of this bone trabecula microporous layer 50 is 0.5--10mm, is optimal value with 3mm; The bone trabecula microporous layer 50 of femoral stem body 10 outer surfaces can be arranged on the outer surface on femoral stem body 10 tops, as shown in Figure 3; Also can be arranged on the outer surface of whole femoral stem body 10; As Fig. 7, Fig. 8, shown in Figure 9, this bone trabecula microporous layer 50 is the Retinervus Luffae Fructus shape, by diameter is that the titanium alloy of 0.1--3mm or cobalt alloy metal bar rule and/or be interweaved brokenly connects and composes, wherein, the diameter optimum of metal bar is 0.5mm, form similar bone trabecular architectural feature, porosity reaches 50-80%, and intensity is between cortical bone and the spongy bone; Behind artificial hip joint implant into body of the present utility model, the osteocyte that human body natural's bone bears, can be by the micropore of bone trabecula microporous layer 50 microporous layers 50 inner chambers of growing into, in microporous layers 50, be interweaved, around locking, and follow the blood supply of growing into of capillary vessel to form new bone trabecula, tissue is grown into, soft tissue adsorbs and vascularization takes place, natural bone and prosthese are grown together, thereby realize the integrated fixing of prosthese and natural bone, strengthen fixed effect effectively, can prevent the loosening and sinking of articular prosthesis for a long time, increase the service life.
As to further improvement of the utility model, the outer surface of described bone trabecula microporous layer 50 is provided with hydroxyapatite coating layer, and perhaps outer surface and the surface of internal cavity at bone trabecula microporous layer 50 is equipped with the hydroxyapatite coating layer (not shown); The main component of hydroxyapatite coating layer is Ca and P, consistent with the composition of human body sclerotin, in the generative process of new bone, on the one hand, has ossification, can provide Ca ion and P ion for the generation of new bone, promote and improve the formation speed of new bone, on the other hand, have and induce new osteogenesis effect, can induce new bone, thereby promote combining of new bone and prosthese to artificial hip joint face coat growth, further strengthen the bond strength at natural bone and artificial hip joint interface, the constant intensity and the service life of having improved artificial hip joint.
The artificial hip joint on bone trabecula microporous surface that this utility model provides, be bone trabecula microporous layer to be set at femoral stem body that has the artificial hip prosthesis now and acetabular cup outer surface, this bone trabecula microporous layer is the Retinervus Luffae Fructus shape, connect and compose by metal bar rule or irregular being interweaved, formation is similar to bone trabecular architectural feature, porosity reaches 50-80%, and intensity is between cortical bone and the spongy bone; Behind artificial hip joint implant into body of the present utility model, the osteocyte that human body natural's bone bears, can be by the micropore of the bone trabecula microporous laminar surface micropore inner chamber of growing into, in microporous layers, be interweaved, around locking, and follow the blood supply of growing into of capillary vessel to form new bone trabecula, tissue is grown into, soft tissue adsorbs and vascularization takes place, natural bone and prosthese are grown together, thereby realize the integrated fixing of prosthese and natural bone, strengthen fixed effect effectively, can prevent the loosening and sinking of articular prosthesis for a long time, increase the service life.
The above; it only is the preferable specific embodiment of this utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. artificial hip joint on bone trabecula microporous surface, comprise a femoral stem body, the upper end of this femoral stem body is provided with the handle neck, be socketed with the femur bulb on this handle neck, this femur bulb overcoat is connected to the mortar lining, be socketed with acetabular cup outside this mortar lining, it is characterized in that, described femoral stem body and acetabular cup outer surface are formed with bone trabecula microporous layer.
2. artificial hip joint on bone trabecula microporous surface according to claim 1 is characterized in that, the outer surface of described bone trabecula microporous layer is provided with hydroxyapatite coating layer or titanium valve layer.
3. artificial hip joint on bone trabecula microporous surface according to claim 1 is characterized in that, the outer surface and the surface of internal cavity of described bone trabecula microporous layer are provided with hydroxyapatite coating layer or titanium valve layer.
4. artificial hip joint on bone trabecula microporous surface according to claim 1 is characterized in that, the thickness of described bone trabecula microporous layer is 0.5--10mm.
5. according to the arbitrary described artificial hip joint on bone trabecula microporous surface of claim 1-4, it is characterized in that described bone trabecula microporous layer is the Retinervus Luffae Fructus shape, is connected and composed by metal bar rule and/or irregular being interweaved.
6. artificial hip joint on bone trabecula microporous surface according to claim 5 is characterized in that, the diameter of described metal bar is 0.1-3mm.
7. artificial hip joint on bone trabecula microporous surface according to claim 5 is characterized in that, the material of described metal bar is titanium alloy or cobalt alloy.
8. artificial hip joint on bone trabecula microporous surface according to claim 1 is characterized in that, described femoral stem body top is tapered from top to bottom excessively, and inboard tapered excessive by the lateral, femoral stem body upper inner is interior circular arc; The external side of femoral stem is shape linearly.
9. artificial hip joint on bone trabecula microporous surface according to claim 1 is characterized in that, the bone trabecula microporous layer of described femoral stem external surface is arranged on the outer surface on handle body top or is arranged on the outer surface of whole handle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020193724 CN201755260U (en) | 2010-05-18 | 2010-05-18 | Bone trabecula micropore surface artificial hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020193724 CN201755260U (en) | 2010-05-18 | 2010-05-18 | Bone trabecula micropore surface artificial hip joint |
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| Publication Number | Publication Date |
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| CN201755260U true CN201755260U (en) | 2011-03-09 |
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| CN 201020193724 Expired - Lifetime CN201755260U (en) | 2010-05-18 | 2010-05-18 | Bone trabecula micropore surface artificial hip joint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843533A (en) * | 2010-05-18 | 2010-09-29 | 徐英忱 | Artificial hip joint on bone trabecula microporous surface |
| CN106236328A (en) * | 2016-08-29 | 2016-12-21 | 中奥汇成科技股份有限公司 | A kind of novel porous titanium artificial hip joint |
| CN107811730A (en) * | 2017-11-02 | 2018-03-20 | 哈尔滨医科大学 | Femoral hip prosthesis prosthese |
| CN107899083A (en) * | 2017-11-29 | 2018-04-13 | 南宁越洋科技有限公司 | Super abrasive, high tenacity, the preparation method of biologically active artificial hip joint |
| 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 |
| CN108670503A (en) * | 2018-07-25 | 2018-10-19 | 南京医科大学附属逸夫医院 | A kind of bion femoral stem and its application method containing ti-ni shape memory alloy hangnail |
| CN108836576A (en) * | 2018-07-18 | 2018-11-20 | 北京爱康宜诚医疗器材有限公司 | replacement prosthesis |
| CN109077831A (en) * | 2018-10-23 | 2018-12-25 | 北京爱康宜诚医疗器材有限公司 | Breastbone prosthetic appliance |
-
2010
- 2010-05-18 CN CN 201020193724 patent/CN201755260U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843533A (en) * | 2010-05-18 | 2010-09-29 | 徐英忱 | Artificial hip joint on bone trabecula microporous surface |
| CN106236328A (en) * | 2016-08-29 | 2016-12-21 | 中奥汇成科技股份有限公司 | A kind of novel porous titanium artificial hip joint |
| CN107811730A (en) * | 2017-11-02 | 2018-03-20 | 哈尔滨医科大学 | Femoral hip prosthesis prosthese |
| CN107899083A (en) * | 2017-11-29 | 2018-04-13 | 南宁越洋科技有限公司 | Super abrasive, high tenacity, the preparation method of biologically active artificial hip joint |
| CN107899083B (en) * | 2017-11-29 | 2020-05-26 | 南宁越洋科技有限公司 | Preparation method of super-wear-resistant high-toughness bioactive artificial hip joint |
| 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 |
| CN108836576A (en) * | 2018-07-18 | 2018-11-20 | 北京爱康宜诚医疗器材有限公司 | replacement prosthesis |
| CN108670503A (en) * | 2018-07-25 | 2018-10-19 | 南京医科大学附属逸夫医院 | A kind of bion femoral stem and its application method containing ti-ni shape memory alloy hangnail |
| CN109077831A (en) * | 2018-10-23 | 2018-12-25 | 北京爱康宜诚医疗器材有限公司 | Breastbone prosthetic appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Lidakang Technology Co., Ltd. Assignor: Xu Yingchen Contract record no.: 2011990000509 Denomination of utility model: Artificial hip joint on bone trabecula microporous surface Granted publication date: 20110309 License type: Common License Record date: 20110628 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
| CX01 | Expiry of patent term |