Medical device power supply with AC disconnect alarm and method of supplying power to a medical device
AssigneeZMD Corporation
InventorFrederick W. Faller
Life of this patent
Estimating the term…
Abstract
A power supply for supplying power from an external power source to a medical device for charging a battery of the medical device and operating the medical device includes an external power connection for bringing external power into the power supply, a power module having a power circuit that converts power from the external power source to a form useable by the medical device, monitoring circuitry for monitoring the external power connection to determine whether the external power connection is connected to a source of external power, and alarm circuitry for generating an alarm when the monitoring circuitry determines that the external power connection is not connected to a source of external power.
Claims21
A power supply for supplying power from an external power source to a battery-powered medical device for charging a battery of the medical device and operating the medical device, comprising:
- an external power connection for bringing external power into the power supply;
- a power module connected to receive power from the external power connection and having a power circuit configured to convert power from the external power connection to a form useable by a medical device to which the power supply may be connected;
- monitoring circuitry configured to monitor the external power connection to determine whether the external power connection is connected to a source of external power and further configured to determine whether the medical device to which the power supply may be connected is turned on;
- and
- alarm circuitry configured to generate an alarm when the monitoring circuitry determines that the external power connection is not connected to a source of external power and that the medical device to which the power supply may be connected is not turned on.
A method of supplying power from an external power source to a battery-powered medical device for charging a battery of the medical device and operating the medical device, comprising:
- providing a power supply having an external power connection;
- connecting the power supply to a medical device;
- bringing external power into the power supply from an external power source through the external power connection;
- converting power from the external power source to a form useable by the medical device;
- monitoring the external power connection to determine whether the external power connection is connected to the source of external power;
- determining whether the medical device is turned on;
- and
- generating an alarm when the external power connection is not connected to the external power source and the medical device is not turned on.
Dependencies are inferred from the claim text.