IP Library Granted Patent US 9,566,209
Granted Patent B2
US 9,566,209 · App. 14/929,899 · Granted Feb 14, 2017

Shock wave electrodes with fluid holes

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Quick Facts
Patent No.
US 9,566,209
App. No.
14/929,899
Granted
Feb 14, 2017
Kind
B2
Abstract

Medical devices utilizing shock waves with spark gap electrodes that include fluid holes into the respective electrode cores.

Claims (25)

1. A shock wave applicator device, comprising:

an applicator head including an enclosure sealed by a membrane;

a liquid mixture including water with a buffer and one or more catalysts disposed within the enclosure;

a first electrode having a ring-shaped first tip surface disposed in the liquid mixture in the enclosure and the first electrode including a plurality of holes into a first core of the first electrode, wherein said first core is open to a central opening in the ring-shaped first tip surface;

a second electrode having a ring-shaped second tip surface disposed in the liquid mixture in the enclosure and the second electrode including a plurality of holes into a second core of the second electrode, wherein said second core is open to a central opening in the ring-shaped second tip surface, and wherein the second tip surface of the second electrode is spaced apart from the first tip surface of the first electrode by a spark gap distance, and wherein tip surface dimensions of the second electrode tip surface are larger than tip surface dimensions of the first electrode; and

a controller and a power source coupled to the first and second electrodes.

2. The shock wave applicator device of claim 1 , wherein the first electrode is cylindrical.

3. The shockwave applicator of claim 2 , wherein the plurality of holes of the first electrode are radial holes of the first electrode and the plurality of holes of the second electrode are radial holes of the second electrode.

4. The shockwave applicator device of claim 3 , wherein the one or more catalysts includes a first catalyst comprising 22 to 28 milligrams palladium with active charcoal per milliliter of water and a second catalyst comprising 1.9 to 2 milligrams palladium oxide per milliliter of water, and wherein the buffer has a pH of 6 and is in an amount of 4 to 4.5 microliters of buffer per milliliter of water.

5. The shockwave applicator device of claim 3 , wherein the one or more catalysts includes a first catalyst comprising 22 to 28 milligrams palladium with active charcoal per milliliter of water and a second catalyst comprising 2 to 3 milligrams pyrogenic silica per milliliter of water, and wherein the buffer has a pH of 10 and is in an amount of 5 to 6 microliters of buffer per milliliter of water.

6. The shockwave applicator device of claim 3 , further comprising a stepper motor coupled to at least one of the electrodes, wherein the stepper motor is actuated by the controller to incrementally adjust the spark gap distance between the electrodes.

7. The shockwave applicator device of claim 3 , further comprising a handle coupled to at least one of the first electrode and second electrode for manual adjustment of the spark gap distance between the electrodes.

8. The shockwave applicator device of claim 3 , wherein the controller determines spark gap distance between the electrodes by calculation of equivalent capacitance of the applicator head.

9. The shockwave applicator device of claim 2 , further comprising a handle coupled to at least one of the first electrode and second electrode for manual adjustment of the spark gap distance between the electrodes.

10. The shockwave applicator device of claim 2 , further comprising a display operatively coupled to the controller and providing viewable instructions for adjustment of the spark gap distance between the electrodes.

11. The shockwave applicator device of claim 2 , wherein the controller determines spark gap distance between the electrodes by calculation of equivalent capacitance of the applicator head.

12. The shockwave applicator device of claim 11 , further comprising a stepper motor coupled to at least one of the electrodes, wherein the stepper motor is actuated by the controller to incrementally adjust the spark gap distance between the electrodes.

13. The shockwave applicator device of claim 2 , further comprising a stepper motor coupled to at least one of the electrodes, wherein the stepper motor is actuated by the controller to incrementally adjust the spark gap distance between the electrodes.

14. The shockwave applicator of claim 1 , wherein the plurality of holes of the first electrode are radial holes of the first electrode and the plurality of holes of the second electrode are radial holes of the second electrode.

15. The shockwave applicator device of claim 1 , wherein the one or more catalysts includes a first catalyst comprising 22 to 28 milligrams palladium with active charcoal per milliliter of water and a second catalyst comprising 1.9 to 2 milligrams palladium oxide per milliliter of water, and wherein the buffer has a pH of 6 and is in an amount of 4 to 4.5 microliters of buffer per milliliter of water.

16. The shockwave applicator device of claim 1 , wherein the one or more catalysts includes a first catalyst comprising 22 to 28 milligrams palladium with active charcoal per milliliter of water and a second catalyst comprising 2 to 3 milligrams pyrogenic silica per milliliter of water, and wherein the buffer has a pH of 10 and is in an amount of 5 to 6 microliters of buffer per milliliter of water.

17. The shockwave applicator device of claim 1 , further comprising a handle coupled to at least one of the first electrode and second electrode for manual adjustment of the spark gap distance between the electrodes.

18. The shockwave applicator device of claim 1 , further comprising a display operatively coupled to the controller and providing viewable instructions for adjustment of the spark gap distance between the electrodes.

19. The shockwave applicator device of claim 1 , wherein the controller determines the spark gap distance between the electrodes by calculation of equivalent capacitance of the applicator head.

20. The shockwave applicator device of claim 1 , further comprising a stepper motor coupled to at least one of the electrodes, wherein the stepper motor is actuated by the controller to incrementally adjust the spark gap distance between the electrodes.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Jan 27, 2026
From: JPMORGAN CHASE BANK, N.A.
To: SANUWAVE, INC.
Reel/Frame 073599/0077 →
RELEASE OF SECURITY INTEREST Recorded Sep 30, 2025
From: NH EXPANSION CREDIT FUND HOLDINGS LP
To: SANUWAVE, INC.
Reel/Frame 072417/0134 →
SECURITY INTEREST Recorded Sep 26, 2025
From: SANUWAVE, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 072385/0128 →
SECURITY INTEREST Recorded Aug 7, 2020
From: SANUWAVE, INC.
To: NH EXPANSION CREDIT FUND HOLDINGS LP
Reel/Frame 053436/0953 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2016
From: KATRAGADDA, VENKATA; BOOTH, DAVID; MCGHIN, CARY; JACKSON, JOHN; JOHNSTON, RICHARD
To: SANUWAVE, INC.
Reel/Frame 037646/0620 →