Minimally invasive leadless neurostimulation device

A leadless neurostimulation device comprising:

• a header unit comprising:
• at least one primary electrode having a contact surface that defines an external surface of the leadless neurostimulation device, the at least one primary electrode comprising a cathode;
• a housing comprising a secondary electrode positioned on the same side of the leadless neurostimulation device as the at least one primary electrode, the secondary electrode comprising an anode;
• and
• a suture anchor device comprising at least one suture point for securing the leadless neurostimulation device to patient tissue,
• wherein the leadless neurostimulation device includes processing circuitry electrically coupled to the at least one primary electrode and the secondary electrode and are configured to transmit and receive, respectively, an electrical stimulation signal between the cathode and the anode to provide electrical stimulation therapy to a target nerve of a patient.

A leadless neurostimulation device comprising:

• a header unit comprising:
• at least one primary electrode having a contact surface that defines an external surface of the leadless neurostimulation device;
• an outer housing that forms a side of the header unit opposite of the contact surface of the primary electrode;
• and
• a dielectric mount that receives at least a portion of the at least one primary electrode and at least partially surrounds the at least one primary electrode, the dielectric mount being configured to electrically insulate the at least one primary electrode from the outer housing, the dielectric mount being received and fixed within a recessed portion of the outer housing;
• a housing comprising a secondary electrode positioned on the same side of the leadless neurostimulation device as the at least one primary electrode, the at least one primary electrode and the secondary electrode being configured to transmit an electrical stimulation signal therebetween to provide electrical stimulation therapy to a tibial nerve of a patient,
• a dielectric coating or a dielectric surface treatment that electrically insulates at least one primary electrode from the secondary electrode along an exterior surface of the device, wherein a boundary defined by the dielectric coating or the dielectric surface treatment defines the secondary electrode;
• and
• a suture anchor device comprising at least one suture point for securing the leadless neurostimulation device to patient tissue,
• wherein the at least one primary electrode and the secondary electrode define a separation distance of about 10 mm to about 20 mm, and
• wherein the leadless neurostimulation device defines a total volume of about 1.5 cubic centimeters (cc) to about 3.5 cc.

A leadless neurostimulation device comprising:

• a header unit comprising:
• at least one primary electrode having a contact surface that defines an external surface of the leadless neurostimulation device;
• an outer housing that forms a side of the header unit opposite of the contact surface of the primary electrode;
• and
• a dielectric mount that receives at least a portion of the at least one primary electrode and at least partially surrounds the at least one primary electrode, wherein the dielectric mount is configured to electrically insulate the at least one primary electrode from the outer housing, the dielectric mount being received and fixed within a recessed portion of the outer housing;
• and
• a housing comprising a secondary electrode positioned on the same side of the leadless neurostimulation device as the at least one primary electrode, wherein the at least one primary electrode and the secondary electrode are configured to transmit an electrical stimulation signal therebetween to provide electrical stimulation therapy to a target nerve of a patient.