Treatment of ischaemia
AssigneeVersono Medical Limited
InventorsFinbar DOLAN, Hugh O'DONOGHUE
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Abstract
An endovascular apparatus for crossing through an obstruction in a blood vessel comprises an elongate endovascular wire and a coupling. The coupling when in use transmits ultrasonic energy along the wire from an ultrasonic energy source to an active tip at a distal end of the wire. The coupling is arranged to couple the source to the wire at any of a plurality of discrete operational positions along the length of the wire for said transmission of ultrasonic energy to the active tip.
Claims15
1-97. (canceled)
Endovascular apparatus for crossing through an obstruction in a blood vessel, the apparatus comprising:
- an electrically-driven source of ultrasonic energy;
- a coupling for exciting an endovascular wire, in use, to transmit ultrasonic energy along the wire from the source thereby coupled to the wire to an active tip at a distal end of the wire;
- and
- a signal acquisition and processing system that is configured to:
- capture and respond to operational parameters of the apparatus as the active tip approaches or crosses through an obstruction in use;
- monitor variations in frequency of vibration of the wire via the coupling;
- and
- infer displacement of the active tip of the wire from waveforms in the wire determined from said variations in frequency of vibration of the wire.
Dependencies are inferred from the claim text.