Patent ID: 9072479
Filing Date: 2015-07-07
Classification: A61B,H03K

Abstract:
1. A device comprising: a handheld medical instrument including an electronic device, wherein the handheld medical instrument is selected from: an otoscope, an ophthalmoscope, a thermometer, a sphygmomanometer, a skin surface microscope, a unidirectional occluder, an examination light, an electronic stethoscope, a tympanometric instrument, and an audiometer; and a power handle coupled to the electronic device, the power handle comprising: a variable control that detects a capacitance of and movement of a user's finger on an external surface of the power handle, the variable control comprising at least three spaced conductive strips separated from the exterior surface by an electrically insulating material, wherein the variable control generates a control signal upon detection of changes in capacitance at the spaced conductive strips in response to the movement of the user's finger across the external surface of the power handle; and a variable output power supply electrically connected to the electronic device and configured to receive the control signal from the variable control, wherein the variable output power supply supplies a variable voltage output to the electronic device based on the control signal.