Abstract: A first medical device for obstructive sleep apnea therapy includes therapy delivery circuitry coupled to a first set of electrodes implantable proximate to a first hypoglossal nerve within a tongue of the patient and configured to deliver a first electrical stimulation signal to the first hypoglossal nerve that causes the tongue of the patient to advance and includes information to communicate to a second medical device implantable within the head or neck of the patient and coupled to a second set of electrodes implantable proximate to a second hypoglossal nerve within the tongue of the patient; and sensing circuitry coupled to the first set of electrodes and configured to receive a second electrical stimulation signal, delivered to the second hypoglossal nerve by the second medical device, that includes information that the second medical device communicates to the first medical device.

Abstract: A preflex, arcuately shaped blade head is formed of a cartridge having a cutting edge supported on a curved, flexible blade support. The blade head is oversized, being greater than 2¼? in lateral linear length. An outrigger blade stabilizer extends posteriorly cantilevered from the blade support. A palm gripping handle forms a bulbous, palm accommodating shaped gripping member having a plan outline shaped generally of kite shape or an elongated Reuleax triangle, with a heel element forming a volar outer ridge at a distal end. An upper arcuate surface forms an oblique arch about the lateral plane of the handle. A longitudinal arch is further formed about the linear plane of the handle. A lower curved surface forms a finger receiving notch at a proximal end of the handle. Such features significantly extend the range of use of the shaver and is specifically adapted for shaving a user's scalp.