Patent ID: 7912536

Claim:
A disposable, multi-purpose cardiovascular autonomic neuropathy testing device which comprises: a tubular body having a distal end, a proximal end, and a single passageway defined thereby and extending therethrough; at least one ECG electrode disposed on an exterior surface of said tubular body for sensing ECG signals of a patient holding said tubular body; a breathing sensor attached to an interior surface of said tubular body for measuring air flow caused by breathing through the passageway; a closure mechanism attached to the distal end of said tubular body for selectively restricting the passageway, said closure mechanism having a first configuration in which the passageway is unrestricted, and a second configuration in which the passageway is selectively restricted; and a pressure monitor attached to the interior surface of said tubular body for confirming when a pre-determined pressure has been established in the passageway; whereby when said closure mechanism is in the first configuration such that the passageway is unrestricted, the testing device is adapted for conducting metronomic breathing tests wherein the patient breathes through the passageway while the patient's ECG is monitored by said at least one ECG electrode, and the testing device is further adapted for conducting HRV standing tests wherein the patient's ECG is monitored by the ECG electrode; whereby when the closure mechanism is in the second configuration such that the passageway is restricted, the testing device is adapted to conduct Valsalva maneuver tests wherein the patient breathes into the passageway until said pressure monitor confirms that the pre-determined pressure has been established in the passageway while the patient's ECG is monitored by said at least one ECG electrode.