SYSTEMS AND METHODS FOR MANAGEMENT OF THROMBOSIS

摘要

An aspiration system includes an aspiration catheter including a tubular aspiration member having a proximal end, a distal end, and a lumen, and configured to at least partially extend out of the lumen of an elongate tubular member and into the vasculature of a subject, an elongate support member coupled to the tubular aspiration member and extending between the proximal end of the aspiration catheter and the proximal end of the tubular aspiration member, a high pressure injection lumen extending within the elongate support member and having a distal end including a curved portion configured to change a direction of fluid flow by at least about 90°, at least one orifice located at the distal end of the high pressure injection lumen configured to allow liquid to be released into the lumen of the tubular aspiration member, and an annular seal carried by the tubular aspiration member and configured to create a liquid seal against the inner surface of the elongate tubular member.

主权项

1. An aspiration system for removal of material from a lumen, cavity or duct of a patient, comprising:
an aspiration catheter having a proximal end and a distal end and configured to be inserted through a lumen of an elongate tubular member, the elongate tubular member configured for insertion into the vasculature of a subject and having a proximal end, a distal end, the lumen extending from the proximal end to the distal end, and an inner surface defined by the lumen, the aspiration catheter comprising:
a tubular aspiration member having a proximal end, a distal end, and a lumen, and configured to at least partially extend out of the lumen of the elongate tubular member at the distal end of the elongate tubular member and into the vasculature of the subject;an elongate support member coupled to the tubular aspiration member and extending between the proximal end of the aspiration catheter and the proximal end of the tubular aspiration member;a high pressure injection lumen extending within the elongate support member and having a proximal end adjacent the proximal end of the aspiration catheter and a distal end adjacent the distal end of the tubular aspiration member, the distal end of the high pressure injection lumen including a curved portion configured to change a direction of fluid flow through the high pressure injection lumen by at least about 90°;at least one orifice located at the distal end of the high pressure injection lumen configured to allow liquid injected through the high pressure injection lumen to be released into the lumen of the tubular aspiration member; andan annular seal carried by the tubular aspiration member and configured to create a liquid seal against the inner surface of the elongate tubular member.