Devices, systems and methods to remove blood clots
AssigneeIschemicure Ltd.
InventorPaul A. Spence
Life of this patent
Estimating the term…
Abstract
Systems, devices and methods for removing a blood clot (10) from a blood vessel (12). Various uses of suction pressure and positive pressure, proximal and/or distal to the blood clot (10) assist with clot dislodgement and removal. The pressure(s) may be constant and/or cycled/pulsed to assist with clot dislodgement and/or removal. Various further devices assist with separating the clot (10) from the vessel (12).
Claims28
A system for imaging a blood clot within a blood vessel, the system comprising:
- an elongate body having a radially expandable distal seal configured to be introduced into the blood vessel and beyond the blood clot such that the distal seal is disposed distal to the blood clot, the distal seal defining an opening at a proximal portion thereof and being a membrane, the elongate body defining a lumen and at least one perforation located distal to a proximal end of the distal seal and proximal to a distal end of the distal seal, the distal seal being configured to expand by introduction of a fluid imaging agent through the at least one perforation while simultaneously expelling a portion of the fluid imaging agent through the opening to enable imaging of the blood clot;
- and
- a fluid delivery apparatus configured to deliver the fluid imaging agent through the lumen and the at least one perforation in the elongate body into an area between the blood clot and the distal end of the distal seal to increase a pressure within the area to expand the distal seal to form a fluid pressure seal against an interior wall surface of the blood vessel distal to the blood clot, the imaging agent being viewable via an imaging modality when the imaging agent is disposed within the area such that at least a portion of the blood clot within the blood vessel can be identified.
A system for imaging a blood clot within a blood vessel, the system comprising:
- an elongate body having a radially expandable distal seal configured to be introduced into the blood vessel and beyond the blood clot such that the distal seal is disposed distal to the blood clot, the elongate body defining a lumen, a first perforation disposed between a proximal end of the distal seal and a distal end of the distal seal, and a second perforation disposed proximal to the proximal end of the distal seal;
- and
- a fluid delivery apparatus configured to deliver via the lumen a fluid imaging agent through the first perforation and the second perforation into an area between the blood clot and the distal end of the distal seal and to radially pressurize the distal seal against an interior wall surface of the blood vessel distal to the blood clot, the imaging agent being viewable via fluoroscopic imaging when the imaging agent is disposed within the area such that at least a portion of the blood clot within the blood vessel can be identified.
The system of 15, wherein the elongate body is configured for the fluid delivery apparatus to deliver the fluid imaging agent concurrently through the first perforation and the second perforation.
Dependencies are inferred from the claim text.