技术领域technical field
本发明涉及一种关节假体，特别涉及一种胫骨置换假体。The invention relates to a joint prosthesis, in particular to a tibia replacement prosthesis.
背景技术Background technique
膝关节是人体较大、结构复杂、对运动功能要求高的关节；人工膝关节置换术是将膝关节的磨损、病患或损伤表面去除并以人造膝关节假体代替的外科手术，其已成为临床上常用的手术，并且在治疗膝关节疾病方面取得了显著的成功。在膝关节置换手术中，必须用到胫骨置换假体，其中胫骨置换假体包括胫骨托和胫骨垫，胫骨托用于植入到患者的胫骨中，胫骨垫被固定到胫骨托上。The knee joint is a large joint in the human body with a complex structure and high requirements for motor function; artificial knee replacement is a surgical operation that removes the worn, diseased or damaged surface of the knee joint and replaces it with an artificial knee joint prosthesis. It has become a commonly used operation in clinic and has achieved remarkable success in the treatment of knee joint diseases. In knee replacement surgery, a tibial replacement prosthesis must be used, wherein the tibial replacement prosthesis includes a tibial tray for implanting into a patient's tibia and a tibial pad fixed to the tibial tray.
现有的人工胫骨置换假体完全参照人体关节的解剖形状，符合人们的日常行为运动特性，并且所述膝关节假体能够实现胫骨托和胫骨垫的紧密结合，减少胫骨垫的变形，提高使用寿命。但现有的胫骨关节假体普遍存在以下技术问题：1.胫骨托和胫骨垫安装不方便，配合要求高，不能跨规格使用；2.胫骨托受到人体重力的影响容易下沉和旋转，使其与胫骨垫脱离，导致膝关节假体脱离原来的部位，影响患者使用；3.胫骨托和胫骨垫结合不稳定，容易发生松动，且不能自动调整，影响膝关节假体的使用寿命。The existing artificial tibial replacement prosthesis completely refers to the anatomical shape of the human joints, which is in line with people's daily behavior and movement characteristics, and the knee joint prosthesis can realize the tight combination of the tibial support and the tibial pad, reduce the deformation of the tibial pad, and improve the use of life. However, the existing tibial joint prosthesis generally has the following technical problems: 1. The installation of the tibial tray and the tibial pad is inconvenient, and the matching requirements are high, so it cannot be used across specifications; It is detached from the tibial pad, causing the knee joint prosthesis to break away from the original position, affecting the use of patients; 3. The combination of the tibial tray and the tibial pad is unstable, prone to loosening, and cannot be adjusted automatically, which affects the service life of the knee joint prosthesis.
实用新型内容Utility model content
为了解决上述技术问题，本实用新型提供一种胫骨置换假体，该胫骨置换假体不但符合人日常行为运动特性；而且胫骨置换假体结构稳定，不易下沉和松动，可跨规格使用，使用寿命长。In order to solve the above-mentioned technical problems, the utility model provides a tibial replacement prosthesis, which not only conforms to the movement characteristics of human daily behavior; moreover, the tibial replacement prosthesis is stable in structure, not easy to sink and loose, and can be used across specifications. long life.
本实用新型具体技术方案如下：The concrete technical scheme of the utility model is as follows:
一种胫骨置换假体，包括胫骨垫和胫骨托，胫骨垫包括：关节面，关节面中间设有限位立柱并在限位立柱底部两侧形成有两个关节盂；与关节面相反的远端表面；在关节面与所述远端表面之间延伸的周壁，周壁具有前边缘、相反的后边缘、外侧边缘以及相反的内侧边缘；以及在所述远端表面中形成的第一凹槽和第二凹槽，第一凹槽沿着后边缘向远端表面的内部延伸，其侧壁构造有倒扣；第二凹槽沿着前边缘向远端表面的内部延伸，呈Y形，其侧壁靠近前边缘处形成有凸块；A tibial replacement prosthesis, including a tibial pad and a tibial support, the tibial pad includes: an articular surface, a limiting column is arranged in the middle of the articular surface and two glenoids are formed on both sides of the bottom of the limiting column; the distal end opposite to the articular surface surface; a peripheral wall extending between the articular surface and the distal surface, the peripheral wall having an anterior edge, an opposite posterior edge, a lateral edge, and an opposite medial edge; and a first groove formed in the distal surface and The second groove, the first groove extends along the rear edge to the inside of the distal surface, and its side wall is configured with an undercut; the second groove extends along the front edge to the inside of the distal surface, in a Y shape, its A bump is formed on the side wall near the front edge;
胫骨托包括用于支撑胫骨垫并具有固定构件的支撑盘，支撑盘限定出前托边缘、相反的后托边缘、外侧托边缘以及相反的内侧托边缘，固定构件由支撑盘底部向下延伸的固定龙骨和若干加强肋接合而成，支撑盘上表面具有固定胫骨垫的第一支柱和第二支柱，第一支柱沿着后托边缘延伸，其内形成有与倒扣卡合的卡槽，第二支柱沿着前托边缘向远端表面的内部延伸，形状和第二凹槽匹配，其侧壁形成有与凸块配合的底切，支撑盘与所述胫骨垫下部过盈配合，胫骨托下部限定出胫骨接合面与人体的胫骨截骨端面相匹配。The tibial tray includes a support plate for supporting the tibial pad and having fixation members, the support plate defining an anterior tray edge, an opposite posterior tray edge, a lateral tray edge and an opposite medial tray edge, the fixation members extending downwardly from the bottom of the tray for fixation The keel is joined with a number of reinforcing ribs. The upper surface of the support plate has a first pillar and a second pillar for fixing the tibial pad. The first pillar extends along the edge of the backrest, and a card slot is formed inside it to engage with the undercut. The second pillar The two pillars extend along the edge of the front support to the inside of the distal surface, and the shape matches the second groove. The side wall is formed with an undercut that matches the protrusion. The support plate is in interference fit with the lower part of the tibial pad, and the tibial support The lower portion defines a tibial articulation surface that matches the tibial osteotomy end surface of the human body.
作为本实用新型进一步优选结构，第一凹槽和第一支柱的接触侧面为截头锥面。As a further preferred structure of the present invention, the contact side of the first groove and the first pillar is a truncated cone surface.
采用截头锥面这种接触面可以使胫骨垫和胫骨托可以沿着该接触面作横向和纵向的微小移动，从而自动调整第一凹槽和第一支柱，保持胫骨托和胫骨垫结合更稳定，而且方便胫骨垫和胫骨托扣合安装。The contact surface of the truncated cone surface can make the tibial pad and the tibial pad move slightly laterally and vertically along the contact surface, thereby automatically adjusting the first groove and the first pillar to keep the tibial pad and the tibial pad more combined. Stable and easy to fit tibial pad and tibial tray.
作为本实用新型进一步改进，第一凹槽底部后边缘形成有取出槽。As a further improvement of the utility model, a removal groove is formed on the rear edge of the bottom of the first groove.
取出槽的设置是为了便于胫骨托和胫骨垫的分离。The removal slot is provided to facilitate the separation of the tibial tray and tibial pad.
作为本实用新型进一步优选结构，胫骨接合面包括由形成在周缘部的凸起限定出的骨水泥槽。As a further preferred structure of the present invention, the tibial joint surface includes a bone cement groove defined by the protrusion formed on the peripheral portion.
骨水泥槽用于放置骨科手术的医用材料骨水泥，将胫骨接合面与胫骨镶嵌，从而将胫骨托牢牢固定在股骨上。The bone cement groove is used to place the medical material bone cement for orthopedic surgery, and inlay the tibial joint surface with the tibia, so as to firmly fix the tibial tray on the femur.
作为本实用新型进一步优选结构，胫骨接合面具有用于诱导骨细胞生长实现生物固定的钛涂层。As a further preferred structure of the present invention, the tibial joint surface has a titanium coating for inducing bone cell growth to realize biological fixation.
钛涂层具有用于诱导骨细胞生长实现生物固定作用,从而使得胫骨托牢牢固定在股骨上。The titanium coating is used to induce the growth of bone cells to achieve biological fixation, so that the tibial tray is firmly fixed on the femur.
作为本实用新型进一步优选结构，限位立柱和固定龙骨设置在垂直支撑盘的同一直线上，且该直线经过第二凹槽靠近周壁后边缘的端点处。As a further preferred structure of the present invention, the limit column and the fixed keel are arranged on the same straight line vertical to the support plate, and the straight line passes through the end point of the second groove near the rear edge of the peripheral wall.
限位立柱、固定龙骨和第二凹槽靠近周壁后边缘的端点处位于垂直支撑盘的同一直线上，这样使胫骨垫纵上受力更加合理的传输到胫骨托上并通过胫骨托下部的固定龙骨分散下去，同时最大程度的减小胫骨垫在支撑盘上横向的扭转效果，可提高胫骨置换假体的使用寿命。The limit column, the fixed keel and the end point of the second groove near the rear edge of the peripheral wall are located on the same straight line of the vertical support plate, so that the longitudinal force of the tibial pad is more reasonably transmitted to the tibial tray and fixed by the lower part of the tibial tray The keels are spread out, and at the same time, the lateral torsion effect of the tibial pad on the support plate is minimized, which can improve the service life of the tibial replacement prosthesis.
作为本实用新型进一步改进，胫骨垫为聚乙烯塑料。As a further improvement of the utility model, the tibia pad is made of polyethylene plastic.
作为本实用新型进一步优选结构，加强肋为高度和龙骨相同并由上向下宽度不断减小的肋片。As a further preferred structure of the utility model, the reinforcing rib is a rib whose height is the same as that of the keel and whose width decreases continuously from top to bottom.
加强肋为高度和龙骨相同并由上向下宽度不断减小的肋片，可以很好地防止胫骨托的下沉及旋转。The reinforcing rib is a rib whose height is the same as that of the keel and whose width decreases continuously from top to bottom, which can well prevent the subsidence and rotation of the tibial tray.
作为本实用新型进一步优选结构，关节盂的最低点落在加强肋的纵截面上。As a further preferred structure of the present invention, the lowest point of the glenoid falls on the longitudinal section of the reinforcing rib.
关节盂的最低点落在加强肋的纵截面上，这样股骨髁对胫骨垫的作用力可以通过加强肋分散下去，提高了胫骨托的稳固性和胫骨置换假体的使用寿命。The lowest point of the glenoid falls on the longitudinal section of the reinforcing rib, so that the force of the femoral condyle on the tibial pad can be dispersed through the reinforcing rib, which improves the stability of the tibial tray and the service life of the tibial replacement prosthesis.
作为本实用新型进一步优选结构，加强肋设有纵向延伸的半圆形凸起。可进一步防止胫骨托的旋转和下沉，提高股骨假体的使用寿命，减少更换率。As a further preferred structure of the present invention, the reinforcing rib is provided with a semicircular protrusion extending longitudinally. It can further prevent the rotation and subsidence of the tibial tray, improve the service life of the femoral prosthesis, and reduce the replacement rate.
本实用新型所提供的胫骨置换假体，具有很好的初始稳定性及长期使用稳定性，胫骨垫和胫骨托构造合理，并可跨规格使用；第一凹槽和第一支柱的接触侧面为截头锥面，可以自动调整，从而保持胫骨托和胫骨垫结合更稳定而且胫骨置换假体结构稳定；骨水泥槽用于放置骨科手术的医用材料骨水泥，将胫骨接合面与胫骨镶嵌；限位立柱、固定龙骨和第二凹槽靠近周壁后边缘的端点处位于垂直支撑盘的同一直线上，以及关节盂的最低点落在加强肋的纵截面上，合理的结构保证了胫骨垫和胫骨托受力更加合理，增加了胫骨置换假体的使用寿命；加强肋的结构设置可以很好地防止胫骨托的下沉及旋转。The tibial replacement prosthesis provided by the utility model has good initial stability and long-term use stability, and the structure of the tibial pad and the tibial support is reasonable, and can be used across specifications; the contact side of the first groove and the first pillar is The truncated cone surface can be adjusted automatically, so as to keep the combination of the tibial tray and the tibial pad more stable and the structure of the tibial replacement prosthesis stable; the bone cement groove is used to place the medical material bone cement for orthopedic surgery, and to inlay the tibial joint surface with the tibia; The position column, the fixed keel and the end of the second groove near the posterior edge of the peripheral wall are located on the same straight line of the vertical support plate, and the lowest point of the glenoid falls on the longitudinal section of the rib. The reasonable structure ensures that the tibial pad and tibial The force of the support is more reasonable, which increases the service life of the tibial replacement prosthesis; the structural setting of the reinforcing rib can well prevent the subsidence and rotation of the tibial support.
附图说明Description of drawings
图1为实施例1胫骨垫的结构示意图；Fig. 1 is the structural representation of embodiment 1 tibial pad;
图2为实施例1胫骨垫底部结构示意图；Fig. 2 is the schematic diagram of the bottom structure of the tibial pad in embodiment 1;
图3为实施例1的胫骨托结构示意图；Fig. 3 is the tibial tray structure schematic diagram of embodiment 1;
图4为实施例1的胫骨托底部结构示意图；Fig. 4 is the schematic diagram of the structure of the bottom of the tibial support in embodiment 1;
图5为实施例2胫骨托的结构示意图；Fig. 5 is the structural representation of embodiment 2 tibial support;
图6为实用新型胫骨置换假体的结构示意图；Fig. 6 is a structural schematic diagram of the utility model tibial replacement prosthesis;
图7为图6的局部放大图；Figure 7 is a partially enlarged view of Figure 6;
图8为实施例3的胫骨托的结构示意图；Fig. 8 is the structural representation of the tibial support of embodiment 3;
其中：1、胫骨垫，2、胫骨托，11、关节面，12、远端表面，13、周壁，14、第一凹槽，15、第二凹槽，21、支撑盘，22、固定构件，23、第一支柱，24、第二支柱，25、胫骨接合面，111、限位立柱，112、关节盂，113、关节盂，141、倒扣，142、取出槽，151、凸块，221、固定龙骨，222、加强肋，223、凸起，231、卡槽，241、底切，251、骨水泥槽。Among them: 1. Tibial pad, 2. Tibial tray, 11. Articular surface, 12. Distal surface, 13. Peripheral wall, 14. First groove, 15. Second groove, 21. Support plate, 22. Fixing member , 23, the first pillar, 24, the second pillar, 25, the tibial articulation surface, 111, the limit pillar, 112, the glenoid, 113, the glenoid, 141, the undercut, 142, the removal groove, 151, the bump, 221, fixed keel, 222, reinforcing rib, 223, protrusion, 231, draw-in groove, 241, undercut, 251, bone cement groove.
具体实施方式Detailed ways
下面结合附图说明本实用新型的具体实施方式。The specific embodiment of the utility model is described below in conjunction with accompanying drawing.
实施例1Example 1
本实用新型提供一种胫骨置换假体，如图1至图4所示，该胫骨置换假体包括胫骨垫1和胫骨托2，胫骨垫2为聚乙烯塑料。其中，The utility model provides a tibial replacement prosthesis, as shown in Fig. 1 to Fig. 4, the tibial replacement prosthesis includes a tibial pad 1 and a tibial tray 2, and the tibial pad 2 is made of polyethylene plastic. in,
胫骨垫1包括：关节面11，关节面11中间设有限位立柱111并在限位立柱111底部两侧形成有两个关节盂112、113；与关节面11相反的远端表面12；在关节面11与远端表面12之间延伸的周壁13，周壁13具有前边缘、相反的后边缘、外侧边缘以及相反的内侧边缘；以及在远端表面12中形成的第一凹槽14和第二凹槽15，第一凹槽14沿着后边缘向远端表面12的内部延伸，其侧壁构造有倒扣141，第一凹槽14底部后边缘形成有取出槽142；第二凹槽15沿着前边缘向远端表面的12内部延伸，大致为Y形，其侧壁靠近前边缘处形成有凸块151；The tibial pad 1 includes: the articular surface 11, the middle of the articular surface 11 is provided with a limiting column 111 and two glenoids 112, 113 are formed on both sides of the bottom of the limiting column 111; the distal surface 12 opposite to the articular surface 11; A peripheral wall 13 extending between the face 11 and the distal surface 12, the peripheral wall 13 has a front edge, an opposite rear edge, an outer edge and an opposite inner edge; and a first groove 14 and a second groove formed in the distal surface 12 Groove 15, the first groove 14 extends to the inside of the distal surface 12 along the rear edge, and its side wall is configured with an undercut 141, and the rear edge of the bottom of the first groove 14 is formed with a take-out groove 142; the second groove 15 Extending along the front edge to the inside of the distal surface 12, it is roughly Y-shaped, and a bump 151 is formed on the side wall near the front edge;
胫骨托2包括用于支撑胫骨垫1并具有固定构件22的支撑盘21，支撑盘21限定出前托边缘、相反的后托边缘、外侧托边缘以及相反的内侧托边缘，固定构件22由支撑盘21底部向下延伸的固定龙骨221和若干加强肋222接合而成，其中，The tibial tray 2 comprises a support disc 21 for supporting the tibial pad 1 and having a fixation member 22, the support disc 21 defines an anterior tray edge, an opposite rear tray edge, a lateral tray edge and an opposite medial tray edge, the fixation member 22 is supported by the support tray The fixed keel 221 extending downward at the bottom of 21 is joined with several reinforcing ribs 222, wherein,
加强肋222为高度和龙骨相同并由上向下宽度不断减小的肋片。关节盂112、113的最低点落在加强肋222的纵截面上。The reinforcing rib 222 is a rib whose height is the same as that of the keel and whose width decreases continuously from top to bottom. The lowest point of the glenoid 112 , 113 falls on the longitudinal section of the reinforcing rib 222 .
支撑盘21上表面具有固定胫骨垫1的第一支柱23和第二支柱24，第一支柱23沿着后托边缘延伸，其内形成有与倒扣141卡合的卡槽231，第二支柱24沿着前托边缘向支撑盘21表面的内部延伸，形状和第二凹槽15匹配，其侧壁在前托边缘形成有与凸块151配合的底切241，支撑盘21上部与胫骨垫2下部过盈配合，胫骨托2下部限定出胫骨接合面25与人体的胫骨截骨端面相匹配。胫骨接合面25具有用于诱导骨细胞生长实现生物固定的钛涂层(图中未标出)；固定构件22也具有用于诱导骨细胞生长实现生物固定的钛涂层。The upper surface of the support plate 21 has a first pillar 23 and a second pillar 24 for fixing the tibial pad 1. The first pillar 23 extends along the edge of the rear support, and a slot 231 is formed in it to engage with the undercut 141. The second pillar 24 extends to the inside of the surface of the support plate 21 along the edge of the front support plate. 2. The lower part is an interference fit. The lower part of the tibial tray 2 defines the tibial articulation surface 25 to match the tibial osteotomy end surface of the human body. The tibial articulation surface 25 has a titanium coating (not shown) for inducing bone cell growth to achieve biological fixation; the fixation member 22 also has a titanium coating for inducing bone cell growth to achieve biological fixation.
其中，限位立柱111和固定龙骨221设置在垂直支撑盘21的同一直线上，且该直线经过第二凹槽15靠近周壁13后边缘的端点处。Wherein, the limiting column 111 and the fixing keel 221 are arranged on the same straight line perpendicular to the support plate 21 , and the straight line passes through the end point of the second groove 15 close to the rear edge of the peripheral wall 13 .
实施例2Example 2
本实用新型提供一种胫骨置换假体，该胫骨置换假体与实施例1不同的是，其中，胫骨托2的结构如图5所示，胫骨接合面25包括由形成在周缘部的凸起限定出的骨水泥槽251，骨水泥槽251用于放置骨科手术的医用材料骨水泥，将胫骨接合面25与胫骨镶嵌，从而将胫骨托2牢牢固定在股骨上。The utility model provides a tibial replacement prosthesis. The tibial replacement prosthesis is different from Embodiment 1 in that the structure of the tibial support 2 is shown in FIG. The defined bone cement groove 251 is used to place bone cement, a medical material used in orthopedic surgery, to inlay the tibial joint surface 25 with the tibia, thereby firmly fixing the tibial tray 2 on the femur.
实施例3Example 3
本实用新型提供一种胫骨置换假体，该胫骨置换假体与实施例2不同的是，胫骨垫1和胫骨托2的结构如图6和图7所示，第一凹槽14和第一支柱23的接触侧面为截头锥面。采用截头锥面这种接触面可以使胫骨垫1和胫骨托2可以沿着该接触面作横向和纵向的微小移动，从而自动调整第一凹槽14和第一支柱23，保持胫骨托2和胫骨垫1结合更稳定。The utility model provides a tibial replacement prosthesis. The difference between the tibial replacement prosthesis and the embodiment 2 is that the structure of the tibial pad 1 and the tibial support 2 is shown in Fig. 6 and Fig. 7, the first groove 14 and the first The contact side of the strut 23 is a frusto-conical surface. The contact surface of the truncated cone surface can make the tibial pad 1 and the tibial tray 2 move slightly laterally and vertically along the contact surface, thereby automatically adjusting the first groove 14 and the first pillar 23 to keep the tibial tray 2 Combined with the tibial pad 1, it is more stable.
实施例4Example 4
本实用新型提供一种胫骨置换假体，该胫骨置换假体与实施例3不同的是，加强肋222设有纵向延伸的半圆形凸起223，可进一步防止胫骨托的旋转和下沉，提高股骨假体的使用寿命，减少更换率。The utility model provides a tibial replacement prosthesis. The tibial replacement prosthesis is different from Embodiment 3 in that the reinforcing rib 222 is provided with a semicircular protrusion 223 extending longitudinally, which can further prevent the rotation and sinking of the tibial support. Improve the service life of the femoral prosthesis and reduce the replacement rate.
最后应说明的是，以上实施例仅用以说明本实用新型的技术方案而非限制，尽管参照较佳实施例对本实用新型进行了详细说明，本领域的普通技术人员应当理解，可以对本实用新型的技术方案进行修改或者等同替换，而不脱离本实用新型技术方案的精神和范围，其均应涵盖在本实用新型的权利要求范围当中。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modification or equivalent replacement of the technical solutions without departing from the spirit and scope of the technical solutions of the present utility model, all of which shall be covered by the scope of the claims of the present utility model.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520593574.4UCN204909727U (en) | 2015-08-03 | 2015-08-03 | Shin bone replacement false body |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520593574.4UCN204909727U (en) | 2015-08-03 | 2015-08-03 | Shin bone replacement false body |
| Publication Number | Publication Date |
|---|---|
| CN204909727Utrue CN204909727U (en) | 2015-12-30 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520593574.4UExpired - LifetimeCN204909727U (en) | 2015-08-03 | 2015-08-03 | Shin bone replacement false body |
| Country | Link |
|---|---|
| CN (1) | CN204909727U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174378A (en)* | 2017-05-19 | 2017-09-19 | 华南理工大学 | One kind rotation clamping type Total knee arthroplasty tibia support and tibial insert assembling structure and implementation method |
| CN113440312A (en)* | 2021-03-10 | 2021-09-28 | 江苏泰州麦迪医疗科技有限公司 | Big wing section knee joint pulley groove false body |
| CN117398221A (en)* | 2023-12-14 | 2024-01-16 | 北京爱康宜诚医疗器材有限公司 | Locking device for artificial knee joint |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174378A (en)* | 2017-05-19 | 2017-09-19 | 华南理工大学 | One kind rotation clamping type Total knee arthroplasty tibia support and tibial insert assembling structure and implementation method |
| CN107174378B (en)* | 2017-05-19 | 2023-04-21 | 华南理工大学 | Rotary clamping type full knee replacement tibia support and tibia gasket assembly structure and implementation method |
| CN113440312A (en)* | 2021-03-10 | 2021-09-28 | 江苏泰州麦迪医疗科技有限公司 | Big wing section knee joint pulley groove false body |
| CN117398221A (en)* | 2023-12-14 | 2024-01-16 | 北京爱康宜诚医疗器材有限公司 | Locking device for artificial knee joint |
| CN117398221B (en)* | 2023-12-14 | 2024-04-02 | 北京爱康宜诚医疗器材有限公司 | Locking device for artificial knee joint |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | Granted publication date:20151230 | |
| CX01 | Expiry of patent term |