IP Library › Granted Patent US 12,453,565
Granted Patent B1
US 12,453,565 · App. 18/950,765 · Granted Oct 28, 2025

Shock wave catheters and methods of use thereof for treating, imaging, and characterizing body lumens

Inventors: Hyung Joo Kim (Santa Clara, CA); Thomas Charles Hasenberg (Campbell, CA); Leela Goel (Santa Clara, CA)
Assignee: SHOCKWAVE MEDICAL, INC.
A61B17/22022A61B17/00234A61B90/30A61B90/37A61B2017/00057A61B2017/00106A61B2017/00238A61B2017/00305A61B2017/22025A61B2017/22028A61B2017/22074A61B2090/309A61B2090/3735A61B2090/378
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Quick Facts
Patent No.
US 12,453,565
App. No.
18/950,765
Granted
Oct 28, 2025
Kind
B1
Abstract

Shock wave catheters and methods of use thereof are disclosed herein for intravascular lithotripsy (IVL) and intravascular imaging of a body lumen. The shock wave catheter can include an elongate tube; at least one shock wave emitter disposed at a distal portion of the elongate tube and configured to emit shock waves for treating an occlusion in a body lumen; at least one sensor for imaging the body lumen, the at least imaging sensor disposed at the distal portion of the elongate tube; and at least one enclosure enclosing the at least one shock wave emitter and the at least one sensor. The at least one sensor may be an ultrasound transducer for intravascular ultrasound (IVUS) imaging of the body lumen. Alternatively, the at least one sensor may be an optical coherence tomography (OCT) sensor for OCT imaging of the body lumen.

Claims (51)

1. A catheter for imaging and treating occlusions of body lumens, comprising:

an elongate tube;

at least one shock wave emitter disposed at a distal portion of the elongate tube and configured to emit shock waves in a distal direction for treating an occlusion in a body lumen;

at least one sensor for imaging the body lumen, the at least one sensor disposed at the distal portion of the elongate tube;

at least one enclosure enclosing the at least one shock wave emitter; and

a moveable member extending along at least a portion of a length of the elongate tube and configured to move relative to the elongate tube, wherein the at least one sensor is disposed on the moveable member to move the at least one sensor relative to the elongate tube.

2. The catheter of claim 1 , wherein the at least one sensor is rotatable about a longitudinal axis of the elongate tube.

3. The catheter of claim 1 , wherein the at least one sensor is translatable along a longitudinal axis of the elongate tube.

4. The catheter of claim 1 , wherein at least one of the at least one shock wave emitter and the at least one sensor are positioned within the elongate tube.

5. The catheter of claim 1 , wherein at least one of the at least one shock wave emitter and the at least one sensor are positioned outside of the elongate tube.

6. The catheter of claim 1 , wherein the at least one sensor is proximal of the at least one shock wave emitter.

7. The catheter of claim 1 , wherein the at least one enclosure encloses the at least one sensor.

8. The catheter of claim 1 , comprising a barrier element disposed between the at least one sensor and the at least one shock wave emitter to protect the at least one sensor from the shock waves emitted by the at least one shock wave emitter.

9. The catheter of claim 1 , wherein the at least one sensor comprises a plurality of sensors arranged circumferentially around a longitudinal axis of the elongate tube.

10. The catheter of claim 1 , wherein the at least one sensor comprises at least one ultrasound transducer.

11. The catheter of claim 1 , wherein the at least one sensor comprises at least one optical coherence tomography (OCT) sensor.

12. The catheter of claim 11 , comprising at least one light emitter disposed at the distal portion of the elongate tube and configured to emit light to illuminate the body lumen.

13. The catheter of claim 1 , wherein the at least one shock wave emitter comprises an electrode pair formed by ends of two conductors spaced apart by a gap.

14. The catheter of claim 1 , wherein the at least one shock wave emitter comprises at least one conductive sheath extending around a longitudinal axis of the elongate tube.

15. The catheter of claim 1 , wherein the at least one shock wave emitter comprises at least one optical fiber.

16. The catheter of claim 1 , wherein the at least one shock wave emitter and the at least one sensor are moveable relative to one another.

17. The catheter of claim 1 , wherein the at least one sensor is moveable relative to the elongate tube and the at least one shock wave emitter is fixed relative to the elongate tube.

18. The catheter of claim 1 , comprising:

an inner elongate member extending within the elongate tube,

wherein the moveable member has the at least one shock wave emitter mounted thereon, the moveable member is disposed between the inner elongate member and the elongate tube, and the moveable member is configured to translate along the inner elongate member.

19. The catheter of claim 1 , wherein the at least one shock wave emitter comprises a plurality of shock wave emitters disposed at a distal end of the elongate tube.

20. The catheter of claim 19 , wherein each shock wave emitter of the plurality of shock wave emitters is configured to generate shock waves that constructively interfere distally of the elongate tube.

21. A catheter for imaging and treating occlusions of body lumens, comprising:

an elongate tube;

at least one shock wave emitter disposed at a distal portion of the elongate tube and configured to emit shock waves for treating an occlusion in a body lumen;

at least one sensor for imaging the body lumen, the at least one sensor disposed at the distal portion of the elongate tube;

at least one enclosure enclosing the at least one shock wave emitter; and

a moveable member extending along at least a portion of a length of the elongate tube and configured to move relative to the elongate tube, wherein the moveable member is configured to move the at least one shock wave emitter and the at least one sensor relative to one another.

22. A catheter for imaging and treating occlusions of body lumens, comprising:

an elongate tube;

at least one shock wave emitter disposed at a distal portion of the elongate tube and configured to emit shock waves for treating an occlusion in a body lumen;

at least one sensor for imaging or characterizing the body lumen, the at least one sensor comprising at least one ultrasound transducer disposed at the distal portion of the elongate tube;

at least one enclosure enclosing the at least one shock wave emitter; and

a moveable member extending along at least a portion of a length of the elongate tube and configured to move relative to the elongate tube, wherein the moveable member is configured to move the at least one shock wave emitter and the at least one sensor relative to one another.

23. A method for imaging and treating occlusions of body lumens, comprising:

advancing a distal portion of a catheter through a body lumen such that the distal portion of the catheter is positioned proximate to an occlusion of the body lumen;

generating at least one shock wave by at least one shock wave emitter disposed at the distal portion of the catheter to treat the occlusion, where the at least one shock wave is emitted in a distal direction;

following generating the at least one shock wave, moving a moveable member of the catheter to move at least one sensor disposed at the distal portion of the catheter; and

following generating the at least one shock wave, imaging the body lumen by the at least one sensor.

24. The method of claim 23 , wherein the catheter comprises at least one enclosure enclosing the at least one shock wave emitter.

25. The method of claim 23 , wherein moving the moveable member comprises moving the movable member to move the at least one shock wave emitter and the at least one sensor relative to one another.

26. The method of claim 25 , wherein moving the at least one sensor comprises rotating the at least one sensor about a longitudinal axis of the catheter.

27. The method of claim 25 , wherein moving the at least one sensor comprises translating the at least one sensor along a longitudinal axis of the catheter.

28. The method of claim 23 , wherein moving the moveable member comprises moving the at least one shock wave emitter relative to an elongate tube of the catheter that supports the at least one shock wave emitter and the at least one sensor.

29. The method of claim 23 , comprising delivering at least one voltage pulse to the at least one shock wave emitter to cause the at least one shock wave emitter to generate the at least one shock wave.

30. The method of claim 23 , comprising delivering at least one laser pulse to the at least one shock wave emitter to generate the at least one shock wave.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2025
From: KIM, HYUNG JOO; HASENBERG, THOMAS CHARLES; GOEL, LEELA
To: SHOCKWAVE MEDICAL, INC.
Reel/Frame 070550/0143 →
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