Devices for Endovascular Access Through Extracorporeal Life Support Circuits

摘要

Adaptors, cannulas, caps, tube couplers, and systems thereof provide endovascular access through an established ECLS system. Adaptors having curved or angled shafts navigate right angle side ports of standard bypass cannulas and permit hemostatic introduction and direction of an intervention device to the axial flow path of the cannula lumen and bypass system. A modified cannula having an angled side port is also provided for use as an arterial cannula. A cap having an occluding surface may be inserted into the angled side port to prevent blood from stagnating in the angled side port. A tube coupler is also provided having an access port, such as an angled access port, and may be spliced into an established bypass system for vascular access point. Multiple couplers can be used to provide multiple access points. The adaptors and occlusive cap are interchangeable with each other and with secondary circuits.

主权项

1. A system for vascular access, comprising:
a tube coupler having:
(i) a coupler body having first and second end openings selectively mating to independent tube sections;(ii) a coupler lumen extending within said coupler body between said end openings defining an axial flow path;(iii) an access port including an access port channel providing exterior access to said coupler lumen; and at least one of an occlusive cap and an insertion cap, independently received on said access port; said occlusive cap substantially preventing inflow of fluid into said access port channel; and said insertion cap providing exterior access of an intervention device to said coupler lumen and modifying an angle of insertion of said intervention device through said access port channel and directing said intervention device within said coupler lumen consistent with said axial flow path.