| 发明名称 | Cruciate-retaining tibial prosthesis | ||
| 摘要 | A tibial prosthesis comprises a medial base portion configured to engage a medial surface of a tibia and a lateral base portion configured to engage a lateral surface of the tibia. At least a portion of the medial and lateral base portions are separated by a passage interposed therebetween. The tibial prosthesis also comprises a bridge coupling the medial base portion and the lateral base portion, wherein at least a portion of the bridge is elevated above a portion of the passage between the medial base portion and the lateral base portion. The bridge may define an underlying area that receives at least a portion of a tibial eminence when the tibial prosthesis is engaged with the tibia, wherein the height of the bridge varies in a superior direction across the passage. | ||
| 申请公布号 | US8911501(B2) | 申请公布日期 | 2014.12.16 |
| 申请号 | US201113340645 | 申请日期 | 2011.12.29 |
| 申请人 | Mako Surgical Corp. | 发明人 | Irwin Ronald R.;Otto Jason Karl;Abbasi Ali Zafar;Nadzadi Mark Ellsworth |
| 分类号 | A61F2/38 | 主分类号 | A61F2/38 |
| 代理机构 | Lerner, David, Littenberg, Krumholz & Mentlik, LLP | 代理人 | Lerner, David, Littenberg, Krumholz & Mentlik, LLP |
| 主权项 | 1. A tibial prosthesis comprising: a medial base portion configured to engage a medial surface of a tibia; a lateral base portion configured to engage a lateral surface of the tibia, wherein at least a portion of the medial and lateral base portions are separated by a passage interposed therebetween; and a bridge coupling the medial base portion and the lateral base portion, wherein at least a portion of the bridge is elevated above a portion of the passage between the medial base portion and the lateral base portion, the bridge defining an underlying area that receives at least a portion of a tibial eminence when the tibial prosthesis is engaged with the tibia, wherein a height of the bridge varies in a superior direction across the passage; and wherein the medial base portion and the lateral base portion each comprise a lip formed along a respective mesial edge, wherein the lip increases in height from a posterior portion of the tibial prosthesis to an anterior portion of the tibial prosthesis, the bridge comprising a posterior edge defining a posterior opening, wherein the lips extend to the posterior edge and form, at least in part, the posterior opening, the lips providing support to allow the bridge to accommodate the at least a portion of the tibial eminence. | ||
| 地址 | Fort Lauderdale FL US | ||