VALVE ASSEMBLY WITH SEALING CAPABILITY FOR INSTRUMENTS AND/OR GUIDE WIRES FOR USE AS ACCESS/TOOL PORT

摘要

A valve assembly with sealing capability for instruments and/or guide wires for use as access/tool port, comprises a cannula (32) attached to a valve housing (34, 40) with a through hole. Elastic valve members can be housed in the valve housing for sealing the through hole either when no device is inserted into it, or when a specific device with a compatible (in shape and dimensions) cross section is inserted into it. A further sealing arrangement (44, 46, 76, 78) is housed in the valve housing. The further sealing arrangement is extendable within the valve housing so as to selectively reduce the width of the through hole from a non- sealed configuration where one generic device or a group of generic devices, not necessarily having the same size and/or shape, can be inserted into and/or removed from the through hole, to a sealed configuration where the sealing arrangement seals the through hole with the generic device or the group of generic devices inserted into the through hole.