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US 12,672,889 B2Granted
Clot retrieval system for removing occlusive clot from a blood vessel
AssigneeNeuravi Limited
InventorsEamon Brady, David Vale, Michael Gilvarry, Brendan Casey, Marto Hoary, Adnan Siddiqui
Life of this patent
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Abstract
A system for removing an occlusive clot from a blood vessel comprises a catheter and an apparatus for generating a pulsatile vacuum force to pulse the pressure gradient at a distal end of the catheter. The pulse generator may be integral with or separate from the vacuum pump. The pulse generator may be applied to a flexible tubing between the vacuum pump and the proximal end of the catheter.
Claims20
A system for removing an occlusive clot from a blood vessel, the system comprising:
- a catheter comprising a proximal end and a distal end;
- and
- an apparatus configured to rhythmically deliver a pressure gradient at the distal end of the catheter, the apparatus comprising:
- a canister evacuated by a pump;
- a pulse generator located between the canister and the distal end of the catheter;
- and
- a pair of one-way valves positioned on either side of the pulse generator;
- wherein the pulse generator produces a pressure differential waveform comprising a sequence of positive and negative pressure pulses between the pair of one-way valves such that at least a portion of the sequence of positive and negative pressure pulses is produced at the catheter distal end.
5 more elements
A system for removing an occlusive clot from a blood vessel, comprising:
- a catheter for applying a vacuum to the occlusive clot;
- and
- an apparatus for generating an additional energy to be applied to the occlusive clot, the apparatus comprising a canister, a pulse generator, and a pair of one-way valves positioned on either side of the pulse generator,
- wherein the apparatus is adapted to apply a variable pressure to pulse the occlusive clot at a distal tip of the catheter, and
- wherein the pulse generator produces a pressure differential waveform comprising a sequence of pressure pulses between the pair of one-way valves such that at least a portion of the sequence of pressure pulses is produced at the catheter distal tip.
2 more elements
Dependencies are inferred from the claim text.