HARRISON, DANIEL GAVIN,FROST, GEOFFREY SAMUEL,WADDELL, THOMAS KENNETH,WYVILL, LAURA ANN,CRACAUER, RAYMOND FRANCIS,KESHAVJEE, SHAFIQUE,CYPEL, MARCELO,YANG, RANDY
申请号:
CA2944922
公开号:
CA2944922A1
申请日:
2015.04.10
申请国别(地区):
CA
年份:
2015
代理人:
摘要:
A cannula for connecting a medical device to a biological system is taught. The cannula includes a tissue engagement portion, preferably in the form of an annulus, to which a vacuum is applied through the cannula to attract and hold tissue of the biological system in an initial connection while an affixment device is applied to complete the connection. In addition to a working fluid conduit, comprising a main port, a working fluid passage and a working fluid port, and a port to apply the vacuum, the cannula can include a sensor port to allow sensing pressure or other characteristics of the working fluid at a point closely adjacent to the connection between the cannula and the biological system.