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Cannula introducing device for use in extracorporeal circulation system, has expandable structure that is transferred from non-expandable condition into expandable condition by dilator, where structure has opening in expandable condition
Cannula introducing device for use in extracorporeal circulation system, has expandable structure that is transferred from non-expandable condition into expandable condition by dilator, where structure has opening in expandable condition
The device has a cannula (32) with a proximal end and a distal end (34) and an intermediate section situated between the ends. The distal end has an expandable structure (36) that is transferred from a non-expandable condition into an expandable condition by a dilator. The expandable structure has an opening (38) in the expandable condition, and has a material i.e. Nitinol(RTM: Shaped memory alloy). The material can be selected from the group consisting of an elastic plastic, super-elastic plastic, elastic metal and super elastic metal.
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