Shock wave catheter with shock absorber
AssigneeShockwave Medical, Inc.
InventorJason B. FRANCO
Life of this patent
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Abstract
A shock wave catheter includes an elongate member and a shock wave emitter assembly located at a distal region of the elongate member. The shock wave emitter assembly includes a shock absorber made of a low durometer material. A shock wave catheter system includes a shock wave catheter with a shock absorber and a high voltage power supply configured to generate high voltage pulses. A method for treating a lesion in a body lumen includes generating shock waves with a shock wave catheter system that includes a shock wave catheter with a shock absorber.
Claims20
A method of treating a lesion in a body lumen, the method
- comprising:
- positioning a catheter within the body lumen adjacent to the lesion, the catheter comprising:
- an emitter assembly including at least one shock wave generating region comprising a shock absorber made at least in part of a material having a Shore A hardness no greater than 100;
- and
- an enclosure surrounding the emitter assembly;
- filling the enclosure with a fluid;
- and
- generating a shock wave by applying a pulse having a voltage of at least 10 kV to the emitter assembly, wherein the shock wave exerts no less than 50 atm of pressure to the lesion.
A catheter system for treating lesions in a body lumen, the system comprising:
- a catheter comprising:
- a distal region with a shock wave generating region, wherein the shock wave generating region comprises a laser emitter;
- and
- a shock absorber positioned at the laser emitter;
- and
- a power source that provides energy to the shock wave generating region, wherein the shock absorber comprises a thermoplastic polyurethane.
A method of treating a lesion in a body lumen, the method comprising:
- positioning a catheter within the body lumen adjacent to the lesion, the catheter comprising:
- a distal region with a shock wave generating region, the shock wave generating region comprising a laser emitter;
- a shock absorber positioned at the laser emitter and comprising a thermoplastic polyurethane;
- and
- an enclosure surrounding the shock wave generating region;
- filling the enclosure with a fluid;
- and
- generating a shock wave by delivering laser energy from the laser emitter into the fluid.
Dependencies are inferred from the claim text.