METHOD OF PROVIDING EMBOLIC PROTECTION AND SHOCKWAVE ANGIOPLASTY THERAPY TO A VESSEL

• US 20100016862A1
• Filed: 07/13/2009
• Published: 01/21/2010
• Est. Priority Date: 07/16/2008
• Status: Abandoned Application

• Current Assignee: Shockwave Medical, Incorporated
• Original Assignee: Shockwave Medical, Incorporated
• Inventors: Hawkins, Daniel, Adams, John M.
• Application Number:
  US12/501,619
• Publication Number:
  US 20100016862A1
• Time in Patent Office: Days
• US Class Current: 606/128
• CPC Class Codes: A61B 17/2202 the ultrasound transducer being inside patient's body at the distal end of the catheter
• CPC Class Codes: A61B 17/22022 using electric discharge
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 2017/00022 Sensing or detecting at the treatment site
• CPC Class Codes: A61B 2017/22021 electric leads passing through the catheter
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/320716 comprising means for preventing embolism by dislodged material
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting

Abstract

A system comprises a guide wire, an embolic protection basket carried on the guide wire, and a catheter carried on the guide wire adjacent the embolic protection basket. The catheter includes an elongated carrier and a balloon about the carrier in sealed relation thereto. The balloon is arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon forms a mechanical shock wave within the balloon.

Claims

1. A system comprising:

a guide wire;

an embolic protection basket carried on the guide wire; and

a catheter carried on the guide wire adjacent the embolic protection basket, the catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and agenerator within the balloon that forms a mechanical shock wave within the balloon.

2. The system of claim 1, wherein the generator includes at least one electrode that forms an electrical arc.

3. The system of claim 1, wherein the embolic protection basket is downstream from the catheter.

4. The system of claim 1, further including a power source that provides electrical energy to the arc generator.

5. The system of claim 1, wherein the embolic protection basket is a collapsible structure.

6. The system of claim 1, further comprising a push tube that pushes the embolic protection basket into position along the guide wire.

7. The system of claim 1, wherein the embolic protection basket is a collapsible structure and wherein the system further comprises an over tube that maintains the embolic protection basket in a collapsed condition.

8. The system of claim 1, further comprising a push tube that pushes the embolic protection basket into position along the guide wire, wherein the embolic protection basket is a collapsible structure and wherein the system further comprises an over tube that maintains the embolic protection basket in a collapsed condition as the push tube pushes the embolic protection basket into position along the guide wire.

9. The system of claim 1, wherein the guide wire includes a stop that positions the embolic protection basket on the guide wire.

10. The system of claim 1, wherein the catheter includes a lumen for being received on the guide wire.

12. The method of claim 1, wherein the generator includes at least one electrode that forms electrical arcs to form the mechanical shock wave, and wherein the causing step includes applying high voltage pulses to the generator.

13. The method of claim 10, wherein the embolic protection basket is a collapsible structure and wherein the step of advancing the embolic protection basket along the guide wire within the vessel is performed with the embolic protection basket maintained in a collapsed state.

15. The method of claim 12, including the further step of releasing the embolic protection basket from the collapsed state by separating the embolic protection basket from the over tube prior to applying high voltage pulses to the arc generator to form a series of mechanical shocks within the balloon.

11. A method comprising:

providing a guide wire;

inserting the guide wire into a vessel of interest of a patient;

providing an embolic protection basket;

advancing the embolic protection basket along the guide wire within the vessel;

providing a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and agenerator within the balloon that forms a mechanical shock wave within the balloon;

guiding the catheter into the vessel of the patient to a position adjacent to and up stream from the embolic protection basket;

admitting fluid into the balloon; and

causing the generator to form a series of mechanical shocks within the balloon.

14. The method of claim 11, wherein the embolic protection basket is maintained in a collapsed state by enclosing the embolic protection basket within an over tube.