Aspiration apparatuses for clot removal
AssigneeInquis Medical, Inc.
InventorsRichard CHILDS, Richard Christian EWERS, William Jason FOX, Vahid SAADAT
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Abstract
Aspiration catheters for removing clot material from a patient, systems including these catheter as well as methods of making and using these aspiration catheters may be configured to remove clot material in long, continuous strips that prevent release of smaller clot fragments back into the vessel. Also described herein are blood collection apparatuses that may allow safe and easy reperfusion of collected blood.
Claims20
An apparatus for aspirating, filtering, and reperfusing blood, said apparatus comprising:
- an assembly including an upper chamber, a lower chamber, and a filter element therebetween, wherein said assembly is configured to be connected to a vacuum source;
- an aspiration inlet on the upper chamber;
- a reperfusion outlet on the lower chamber configured to be coupled to a reperfusion line through a reperfusion valve;
- and
- a vacuum release valve configured to release vacuum in the lower chamber;
- wherein the reperfusion valve is configured to be opened so that filtered blood can be withdrawn from the lower chamber when the vacuum release valve is open.
An apparatus for aspirating, filtering, and reperfusing blood, the apparatus comprising:
- an upper chamber;
- a lower chamber;
- a filter between the upper chamber and the lower chamber, wherein the filter is configured to capture clot;
- an aspiration inlet into the upper chamber and configured to couple to a vacuum source;
- an aspiration inlet into the upper chamber configured to couple to an aspiration line through an aspiration valve;
- a reperfusion outlet from the lower chamber configured to couple to a reperfusion line through a reperfusion valve;
- and
- a vacuum release valve in fluid communication, wherein the reperfusion valve is configured to be opened when the vacuum release valve is opened.
A device for perfusion of collected blood, the device comprising:
- an upper chamber;
- a lower chamber,
- an impermeable partition between the upper chamber and the lower chamber;
- a partition valve configured to form an opening through the impermeable partition;
- a vacuum inlet into the upper chamber and configured to couple to a vacuum source;
- an aspiration inlet into the upper chamber, a reperfusion outlet out of the lower chamber;
- and a pressure regulation opening into the lower chamber configured to maintain the pressure in the lower chamber greater than the pressure in the upper chamber and above the foaming pressure of blood, wherein the partition valve is configured to opened to allow blood to flow from the upper chamber into the lower chamber.
Dependencies are inferred from the claim text.