| 发明名称 | Seal assembly for a cannula | ||
| 摘要 | The present disclosure relates to a seal assembly for a cannula. The cannula includes a housing having a proximal portion and a distal portion. The seal assembly is located in the proximal portion of the housing and includes a first seal including a first tri-slit, a second seal disposed co-axially and proximal to the first seal and including a second tri-slit, and a third seal disposed co-axially to the first seal and the second seal and including a central opening. A cap is coupled to the proximal portion of the housing and adjacent the third seal and includes a plurality of suture retaining features, such as tabs, for management of sutures during surgery. Fluid leakage out of the cannula, during surgery, is substantially reduced due to the leakage being limited to a channel defined by the first tri-slit, the second tri-slit, and the central opening. | ||
| 申请公布号 | US9131958(B2) | 申请公布日期 | 2015.09.15 |
| 申请号 | US201113332229 | 申请日期 | 2011.12.20 |
| 申请人 | Smith & Nephew, Inc. | 发明人 | Lunn Richard M.;Paulk David A.;Tripodi Julie K. |
| 分类号 | A61M5/14;A61B17/34;A61B17/04;A61B17/00 | 主分类号 | A61M5/14 |
| 代理机构 | Burns & Levinson LLP | 代理人 | Burns & Levinson LLP ;Maraia Joseph M. |
| 主权项 | 1. A seal assembly for a cannula, the cannula comprising a housing having a proximal portion and a distal portion, the seal assembly comprising: a first seal including a first tri-slit; a second seal disposed co-axially and proximal to the first seal, the second seal including a second tri-slit; and a third seal disposed co-axially and proximal to the first seal and the second seal, the third seal including: a central opening;a first portion including the central opening and extending radially outward from the central opening, the first portion having a first thickness; anda second portion extending radially with respect to the central opening from the radial periphery of the first portion, the second portion having a second thickness greater than the first thickness; and a space located between the second seal and the first portion of the third seal and having a thickness given by at least the difference in thickness of the first and second portions of the third seal; wherein the space is present absent insertion of an object within the second and third seals; and wherein the seal assembly is located in the proximal portion of the housing. | ||
| 地址 | Memphis TN US | ||