System and method for predicting motor wear out in infusion systems
AssigneeKoninklijke Philips N.V.
InventorRonald Paul CONSIGLIO
Life of this patent
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Abstract
A rotary drive for a medical device (10) includes a rotary motor (14) including a rotor (26). A rotary motion encoder (34) is connected to the rotor. The rotary motion encoder is configured to generate a number of encoder steps measuring a rotational distance of the rotor. At least one electronic processor (18) is programmed to determine at least one of a slippage value of the rotary motor measured during motor operation and a coasting value of the rotary motor measured after stopping motor operation based on comparison of an actual count of encoder steps and an expected count of encoder steps.
Claims16
A rotary drive for a medical device, the rotary drive comprising:
- a rotary motor including a rotor;
- a rotary motion encoder connected to the rotor, the rotary motion encoder being configured to generate a number of encoder steps measuring a rotational distance of the rotor;
- and
- at least one electronic processor programmed to:
- determine at least one of a slippage value of the rotary motor measured during motor operation and a coasting value of the rotary motor measured after stopping motor operation based on a comparison of an actual count of encoder steps and an expected count of encoder steps;
- and
- determine a wear status of the rotary motor based on at least one of the determined slippage value and the determined coasting value.
A method of using a medical device in a Magnetic Resonance environment, the method comprising:
- with a rotary motion encoder, generating a number of encoder steps measuring a rotational distance of a rotor of a rotary motor;
- with at least one processor, determining at least one of a slippage value of the rotary motor measured during motor operation and a coasting value of the rotary motor measured after stopping motor operation based on a comparison of an actual count of encoder steps and an expected count of encoder steps;
- and
- with the at least one processor;
- determining a wear status of the rotary motor based on at least one of the determined slippage value and the determined coasting value.
16-20. (cancele
Dependencies are inferred from the claim text.