发明名称 |
Surgical access system |
摘要 |
The invention is directed to a surgical access system that provides access to a surgical area while maintaining pneumoperitoneum during laparoscopic surgery. The access system comprises a sheath retractor adapted to dilate a wound stretchable to a desired diameter and a detachable seal adapted to be removable from the sheath retractor. In another aspect, the detachable seal comprising a valve including a plurality of overlapping sheets defining an access channel that extends into communication with the incision in the patient. Each of the overlapping sheets includes a portion of the perimeter that is not fixed to the inner diameter of the ring, which provide open edges defining the access channel. |
申请公布号 |
US9295459(B2) |
申请公布日期 |
2016.03.29 |
申请号 |
US201414574987 |
申请日期 |
2014.12.18 |
申请人 |
Applied Medical Resources Corporation |
发明人 |
Pingleton Edward D.;Hart Charles C. |
分类号 |
A61B17/02;A61B17/34;A61B17/00 |
主分类号 |
A61B17/02 |
代理机构 |
|
代理人 |
Ikehara Patrick Y. |
主权项 |
1. A surgical access device comprising:
a valve structure comprising:
a plurality of septum layers; anda ring having an inner diameter for affixing the plurality of septum layers along their perimeter; wherein the plurality of septum layers includes a first septum layer having a hole at a center of the first septum layer; wherein the plurality of septum layers comprises a second septum layer comprising a central patch supported by a plurality of spokes extending from the central patch, the central patch being large enough to cover the hole of the first septum layer; wherein the valve structure in a first state forming a zero seal in the absence of the instrument or the arm of the surgeon extending through the valve structure, the valve structure in a second state forming an instrument seal in the presence of the instrument or the arm of the surgeon extending through the valve structure and into a patient. |
地址 |
Rancho Santa Margarita CA US |