CN2383493Y - Bone cement type Jitan series hip joint prosthesis - Google Patents
Bone cement type Jitan series hip joint prosthesis Download PDFInfo
- Publication number
- CN2383493Y CN2383493Y CN 99217072 CN99217072U CN2383493Y CN 2383493 Y CN2383493 Y CN 2383493Y CN 99217072 CN99217072 CN 99217072 CN 99217072 U CN99217072 U CN 99217072U CN 2383493 Y CN2383493 Y CN 2383493Y
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- bone
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- femoral stem
- hip prosthesis
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Abstract
The utility model relates to a bone cement type Jitan series hip joint prosthesis, which comprises a femoral bone handle in a flat cone shape, a spherical femoral head, an acetabulum and an inner lining. The connecting part of the neck part of the femoral bone handle matched with the spherical femoral head is a cone shape. An inner cone surface and an outer cone surface are provided with fine tooth threads of left rotation. Two side surfaces of the femoral bone handle are respectively provided with at least one draining sinus slot. The lower end of the neck part is provided with a lengthened neck collar outward extending. The acetabulum is a nautilus-shaped acetabulum with the thread cone part of right rotation in a saw tooth shape and 16 to 22 longitudinal slots are arranged along the cone surface of the acetabulum. The prosthesis uses the bone cement for fixation with high loading ratio and good stability.
Description
This utility model relates to a kind of pseudocolloid, specifically, relates to a kind of articular prosthesis of implant into body hip.
Pseudocolloid is to be used for artificial succedaneum or the replacement product that the partes corporis humani divides.At present, the hip prosthesis of implant into body, its femoral stem and acetabular bone have various ways.With regard to the form of its femoral stem, wherein the application of bone-cement type and none-cement type is more extensive.But they are all not ideal enough aspect bear a heavy burden ratio, steadiness and self-locking performance, remain further to be improved.My ZL9802284.0 utility model patent discloses a kind of tuna type hip prosthesis, and its femoral stem belongs to the none-cement type, and it bears a heavy burden than big, and steadiness and self-locking performance are good.But the needle point of its hedgehog type acetabular bone is short and tiny, penetrates in the bone firm inadequately.In addition, the pulp cavity size of human body varies with each individual.The operation receiveing person bigger to pulp cavity directly inserts the femoral stem with fish scale shape projection in pulp cavity, its steadiness is not ideal enough.Adopt the lucky smooth serial hip prosthesis of existing bone-cement type, between femoral stem and pulp cavity, inject bone cement, can improve its steadiness, but it is abundant inadequately that bone cement is filled, after the several years, and the loosening easily and sinking of femoral stem, its steadiness variation, its heavy burden is more not ideal enough than also.
The purpose of this utility model is to overcome above-mentioned deficiency, and provides a kind of not only self-locking performance good, and bears a heavy burden than big, the lucky smooth serial hip prosthesis of the ideal bone-cement type of steadiness.
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, comprise the femoral stem with flat taper, spherical femoral head, acetabular bone and liner, the cervical region of femoral stem matches the coupling part for conical with spherical femoral head, and have left-handed fine thread on the inside and outside taper seat, a drain hole groove is at least respectively arranged on the two sides of described femoral stem; The lower end of described cervical region has the overhanging neck neck of lengthening; Described acetabular bone is the nautilus shape acetabular bone with band saw profile of tooth right-handed thread tapered segment, and is provided with 16-22 cannelure along its conical surface.
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, the cone angle of wherein said tapered segment be 11 ° 46 ', the pitch of described zigzag right-handed thread equals 3.5mm, the degree of depth equals 3mm, the groove width of described cannelure is 4: 6 with the ratio of the facewidth.
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, the angle of wherein said femoral stem and its cervical region is 135 °, and match with the spherical femoral head tapering of coupling part of cervical region is 5 ° 42 ' 30 ".
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, the pitch of wherein said left-handed fine thread equals 0.25mm, and the degree of depth equals 0.1mm.
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, the material of wherein said femoral stem is a vitallium; The material of described acetabular bone is the titanium alloy of titanium 6 aluminum 4 vanadium 1, and its outside is coated with the hydroxyapatite that one deck and people's bone have the better compatibility; The material of described liner is a ultra high molecular polyethylene; The capital material of described sphere is vitallium or zirconia ceramics.
The advantage of the lucky smooth serial hip prosthesis of bone-cement type of the present utility model is:
(1) femoral stem is flat taper, and at least respectively there is a drain hole groove its both sides, flow and fully fill out fair pulp cavity thereby help bone cement, make the surface of femoral stem and the spongy bone of human body form firm intercalation, therefore behind this prosthese implant into body, can obtain good steadiness;
(2) the femoral stem lower end has the overhanging neck neck of lengthening, thereby strengthened the supporting surface of the big end of femoral stem, alleviated the moment burden of human body when bearing a heavy burden on the one hand, overhanging on the other hand neck neck slightly is intercalated on the Compact bone, has strengthened the heavy burden ratio of operation receiveing person's proximal femur;
(3) acetabular bone is the nautilus shape acetabular bone with band saw profile of tooth right-handed thread tapered segment, and is provided with 16-24 cannelure along its conical surface, and it is screwed in the human body acetabular bone, can form firm combination.
(4) have left-handed fine thread on the cervical region conical portion of femoral stem and the capital inner conical surface, after the connection, screw thread produces plastic deformation and obtains good self-locking performance;
(5) angle of femoral stem and its cervical region can be 135 °, and the tapering of the tapered segment of its cervical region can be 5 ° 42 ' 30 ", reach the optimum coefficient of metal cone angle friction, thereby further improved the steadiness behind this prosthese implant into body.
(6) since can be at the outer surface plating of femoral stem pure titanium ion layer, therefore can make about 4% to cobalt Cr-Al alloy operation receiveing person hypersensitive, use this hip prosthesis safely;
(7) because spiral shell shape acetabular bone can adopt the titanium alloy of titanium 6 aluminum 4 vanadium 1, and it is coated with its apatite of hydroxyl that one deck and people's bone have the better compatibility outward, and internal layer adopts ultra high molecular polyethylene again.Like this, can increase the wearability of internal layer and increase outer field steadiness, and simplify the past with the fixing loaded down with trivial details operative procedure during acetabular bone such as screw or bone cement;
(8), thereby make femoral head not easily broken because capital material can be the zirconia ceramics material of vitallium material or function admirable.
Below in conjunction with drawings and Examples, the lucky smooth serial hip prosthesis of bone-cement type of the present utility model is further described.
Fig. 1 is the structural representation of the lucky smooth serial hip prosthesis of this utility model bone-cement type.
Fig. 2 is an A-A cutaway view among Fig. 1.
Fig. 3 is a B-B cutaway view among Fig. 1.
Fig. 4 is the perspective view of acetabular bone 3 among Fig. 1.
As Fig. 1, Fig. 2 and shown in Figure 4, the lucky smooth serial hip prosthesis of bone-cement type of the present utility model, comprise femoral stem 1, bulb femoral head 2, acetabular bone 3 and liner 4 with flat taper, the cervical region 5 of femoral stem 1 matches coupling part 6 for conical with spherical femoral head 2, and having the degree of depth on the inside and outside taper seat is 0.1mm, pitch is the left-handed fine thread of 0.25mm, and a drain hole groove 7 is respectively arranged on the two sides of femoral stem 1, and the lower end of cervical region 5 has the overhanging neck neck 8 of lengthening.Acetabular bone 3 is the nautilus shape acetabular bone with band saw profile of tooth right-handed thread tapered segment, and is provided with 20 cannelures along its conical surface, and its pitch is 3.5mm, and the degree of depth is 3mm.Femoral stem 1 is 135 ° with the angle of its cervical region 5, and match with spherical femoral head 2 tapering of coupling part 6 of its cervical region 5 is 5 ° 42 ' 30 ".The material selection vitallium of femoral stem 1 to vitallium material operation receiveing person hypersensitive, can use its outside to have the femoral stem of pure titanium ion coating layer.The titanium alloy of material selection titanium 6 aluminum 4 vanadium 1 of nautilus shape acetabular bone 3, and be coated with the hydroxyapatite that one deck and people's bone have the compatibility outside it so that people's bone can grow into wherein preferably, thereby increases steadiness behind its implant into body.The material selection ultra high molecular polyethylene of liner 4.Capital material selection vitallium material.
As shown in Figure 3, cervical region 5 lower ends of femoral stem 1 have the overhanging neck neck 8 of lengthening, and its outline is semicircle.
The lucky smooth serial hip prosthesis of bone-cement type of the present utility model, for being fit to the short characteristics of Aisan's neck of femur, can shorten the length of this prosthese cervical region, to alleviate the burden of human body when bearing a heavy burden, cooperate with the overhanging neck neck of lengthening, also can further strengthen proximal femur heavy burden ratio.In addition, also can strengthen femoral stem and lead the area (promptly strengthening the size of two-dimensional directional herein) of the approximate conical cross-section of connecting place, and make long side direction have the symmetric gradient, thereby make the stability of femoral stem better with the overhanging neck of lengthening.
Claims (6)
1, the lucky smooth serial hip prosthesis of a kind of bone-cement type, comprise the femoral stem (1) with flat taper, spherical femoral head (2), acetabular bone (3) and liner (4), the cervical region (5) of femoral stem (1) matches coupling part (6) for conical with spherical femoral head (2), and have left-handed fine thread on the inside and outside taper seat, it is characterized in that: a drain hole groove (7) is at least respectively arranged on the two sides of described femoral stem (1); The lower end of described cervical region (5) has the overhanging neck neck (8) of lengthening; Described acetabular bone (3) is the nautilus shape acetabular bone with band saw profile of tooth right-handed thread (9) tapered segment, and is provided with 16-22 cannelure along its conical surface.
2, the lucky smooth serial hip prosthesis of bone-cement type according to claim 1, it is characterized in that: the cone angle of described tapered segment be 11 ° 46 ', the pitch of described zigzag right-handed thread equals 3.5mm, and the degree of depth equals 3mm, and the groove width of described cannelure is 4: 6 with the ratio of the facewidth.
3, the lucky smooth serial hip prosthesis of bone-cement type according to claim 1 and 2, it is characterized in that: the angle of described femoral stem (1) and its cervical region (5) is 135 °, and match with spherical femoral head (2) tapering of coupling part (6) of cervical region (5) is 5 ° 42 ' 30 ".
4, the lucky smooth serial hip prosthesis of bone-cement type according to claim 3, it is characterized in that: the pitch of described left-handed fine thread equals 0.25mm, and the degree of depth equals 0.1mm.
5, the lucky smooth serial hip prosthesis of bone-cement type according to claim 4, it is characterized in that: the material of described femoral stem (1) is a vitallium; The material of described acetabular bone (3) is the titanium alloy of titanium 6 aluminum 4 vanadium 1, and its outside is coated with the hydroxyapatite that one deck and people's bone have the better compatibility; The material of described liner (4) is a ultra high molecular polyethylene; The material of described spherical femoral head (2) is vitallium or zirconia ceramics.
6, the lucky smooth serial hip prosthesis of bone-cement type according to claim 5, it is characterized in that: the outside of described femoral stem (1) has pure titanium ion coating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217072 CN2383493Y (en) | 1999-07-22 | 1999-07-22 | Bone cement type Jitan series hip joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99217072 CN2383493Y (en) | 1999-07-22 | 1999-07-22 | Bone cement type Jitan series hip joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2383493Y true CN2383493Y (en) | 2000-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99217072 Expired - Fee Related CN2383493Y (en) | 1999-07-22 | 1999-07-22 | Bone cement type Jitan series hip joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2383493Y (en) |
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 |
| CN101257867B (en) * | 2005-09-09 | 2010-12-15 | 沃尔德马连接两合公司 | Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity |
| CN103037812A (en) * | 2010-06-08 | 2013-04-10 | 史密夫和内修有限公司 | Implant components and methods |
| CN104905896A (en) * | 2015-06-29 | 2015-09-16 | 北京贝思达生物技术有限公司 | Bone-cement type hip joint |
| CN105769390A (en) * | 2016-05-29 | 2016-07-20 | 王跃文 | Honeycomb core decompression surgery implantation nail |
| CN107224616A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of joint prosthesis preparation method |
| CN108143520A (en) * | 2017-12-21 | 2018-06-12 | 嘉思特华剑医疗器材(天津)有限公司 | A kind of minimally invasive hip prosthesis system |
| CN112137772A (en) * | 2019-06-28 | 2020-12-29 | 青岛大学附属医院 | Artificial scaphoid of bonding type ball socket joint formula |
-
1999
- 1999-07-22 CN CN 99217072 patent/CN2383493Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101257867B (en) * | 2005-09-09 | 2010-12-15 | 沃尔德马连接两合公司 | Insertion instrument for an endoprosthesis comprising a prosthesis shaft which is to be inserted into a medullary cavity |
| CN101843533A (en) * | 2010-05-18 | 2010-09-29 | 徐英忱 | Artificial hip joint on bone trabecula microporous surface |
| CN103037812A (en) * | 2010-06-08 | 2013-04-10 | 史密夫和内修有限公司 | Implant components and methods |
| CN104905896A (en) * | 2015-06-29 | 2015-09-16 | 北京贝思达生物技术有限公司 | Bone-cement type hip joint |
| CN107224616A (en) * | 2016-03-25 | 2017-10-03 | 文阳洋 | A kind of joint prosthesis preparation method |
| CN105769390A (en) * | 2016-05-29 | 2016-07-20 | 王跃文 | Honeycomb core decompression surgery implantation nail |
| CN108143520A (en) * | 2017-12-21 | 2018-06-12 | 嘉思特华剑医疗器材(天津)有限公司 | A kind of minimally invasive hip prosthesis system |
| CN112137772A (en) * | 2019-06-28 | 2020-12-29 | 青岛大学附属医院 | Artificial scaphoid of bonding type ball socket joint formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |