Implantable medical device with cavitation features

A medical assembly comprising:

• a stent comprising a primary electrode, wherein the stent is configured to expand from a collapsed configuration to an expanded configuration;
• a secondary electrode;
• and
• an energy source configured to deliver an electrical signal between the primary electrode and the secondary electrode through a fluid in contact with the primary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid,
• wherein the stent comprises a metallic body and a dielectric coating over a portion of the metallic body, a surface of the metallic body defining the primary electrode,
• wherein the stent further comprises an electrically conductive coating on the dielectric coating, wherein the dielectric coating prevents direct contact between the electrically conductive coating and the metallic body, the electrically conductive coating defining the secondary electrode,
• wherein the electrically conductive coating and the dielectric coating define an electrode aperture that extends through a thickness of the electrically conductive coating and the dielectric coating, the electrode aperture exposing the surface of the metallic body to the fluid.

A medical stent configured to expand from a collapsed configuration to an expanded configuration, the medical stent comprising:

• a plurality of leaflets coupled to at least a portion of the medical stent and configured to deploy within a heart of a patient to define a one-way prosthetic heart valve in an operable configuration when the medical stent expands from the collapsed configuration to the expanded configuration;
• a metallic body defining a primary electrode;
• a dielectric coating positioned over a portion of the metallic body;
• and
• a secondary electrode on the dielectric coating, wherein the dielectric coating prevents direct contact between the secondary electrode and the metallic body,
• wherein the secondary electrode and the primary electrode are configured to be electrically coupled to an energy source configured to deliver an electrical signal between the primary electrode and the secondary electrode through a fluid in contact with both the primary electrode and the secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.

A medical stent comprising:

• a metallic body defining a primary electrode;
• a dielectric coating positioned over a portion of the metallic body;
• a secondary electrode on the dielectric coating, wherein the dielectric coating prevents direct contact between the secondary electrode and the metallic body,
• wherein the secondary electrode and the primary electrode are configured to be electrically coupled to an energy source configured to deliver an electrical signal between the primary electrode and the secondary electrode through a fluid in contact with both the primary electrode and the secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid;
• and
• an electrically conductive coating on the dielectric coating, where the dielectric coating prevents direct contact between the electrically conductive coating and the metallic body, the electrically conductive coating defining the secondary electrode,
• wherein the electrically conductive coating and the dielectric coating define an electrode aperture that extends through a thickness of the electrically conductive coating and the dielectric coating, the electrode aperture exposing the primary electrode to an external environment of the stent.