CPC A61N 1/02 (2013.01) [A61B 17/00234 (2013.01); A61N 1/05 (2013.01); A61N 1/0551 (2013.01); A61N 1/3605 (2013.01); A61N 1/36007 (2013.01); A61N 1/36057 (2013.01); A61N 1/36067 (2013.01); A61N 1/36071 (2013.01); A61N 1/36139 (2013.01); A61N 1/3727 (2013.01); A61N 1/3754 (2013.01); A61N 1/3756 (2013.01); A61N 1/3787 (2013.01); A61N 1/37205 (2013.01); A61N 1/37223 (2013.01); A61N 1/37235 (2013.01); A61N 1/37247 (2013.01); A61N 1/36021 (2013.01); A61N 1/36053 (2013.01); A61N 1/37211 (2013.01); A61N 1/37518 (2017.08); F04C 2270/0421 (2013.01)] | 25 Claims |
1. A low profile implantable medical device configured to lay generally flat beneath skin, muscle or other tissue of a patient for delivering neurostimulation therapy to an acupuncture point for treatment of a symptom associated with the acupuncture point, the implantable medical device comprising:
a sealed housing formed of a biocompatible metal, the biocompatible metal comprising at least one of a titanium, stainless steel or an alloy thereof,
the sealed housing including:
a top face;
a bottom face; and
a continuous sidewall;
wherein each of the top face and the bottom face has a linear dimension of less than approximately twenty-seven millimeters in length,
wherein the top face and the bottom face are circumscribed by the continuous sidewall defining an internal cavity,
wherein the continuous sidewall extends substantially perpendicular to the top face and is rounded to provide a smooth continuous surface without sharp corners or edges, and
wherein the sealed housing generally has a flat profile for positioning between tissue layers of a patient;
electronic circuitry positioned within the internal cavity of the sealed housing, the electronic circuitry comprising:
a pulse generator,
a memory, and
a controller configured to cause the pulse generator to deliver a therapy output according to a specified stimulation regimen stored in the memory;
two or more electrodes electrically coupled to the pulse generator and located on an exterior surface of the sealed housing, the two or more electrodes comprising:
a cathode arranged on the bottom face of the sealed housing,
the cathode including an electrically conductive electrode surrounded by an insulated portion,
the electrically conductive electrode configured to be positioned in proximity to a targeted acupuncture point, and
an anode (return) formed as an uninsulated portion of the sealed housing; and
a telemetry module and associated antenna configured to establish a wireless telemetry link between the electronic circuitry and at least one external programming device,
wherein communication with the external programming device via the telemetry module enables receipt of a command to adjust therapy control parameters of the therapy output.
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