Systems and methods for indicating an amount of use of a sensor
First Claim
1. A method of determining an amount of use of a medical sensor capable of communicating signals indicative of physiological parameters of a patient to a medical monitoring device, the method comprising:
- monitoring transitions from a medical monitoring device, said transitions usable to activate one or more light sources of a medical sensor, said light sources configured to irradiate tissue of a monitored patient;
applying a sensor life formula to at least the transitions to determine a cumulative use indication indicative of an amount of use of the medical sensor;
storing data related to said sensor life formula in a memory;
when said use indication is above a threshold, indicating to a caregiver that at least a portion of said medical sensor has expired.
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Accused Products
Abstract
Aspects of the present disclosure include systems and methods for indicating an amount of use of a pulse oximetry sensor. According to one embodiment, the system includes an oximeter that monitors the amount of use for a given sensor. The oximeter and/or the sensor may advantageously include a visual alarm, an audio alarm, a vibrational alarm, a power down function, or the like, which can be activated when a predetermined amount of use has expired. According to another embodiment, the system includes a sensor having a memory device storing a unique identifier.
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Citations
10 Claims
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1. A method of determining an amount of use of a medical sensor capable of communicating signals indicative of physiological parameters of a patient to a medical monitoring device, the method comprising:
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monitoring transitions from a medical monitoring device, said transitions usable to activate one or more light sources of a medical sensor, said light sources configured to irradiate tissue of a monitored patient; applying a sensor life formula to at least the transitions to determine a cumulative use indication indicative of an amount of use of the medical sensor; storing data related to said sensor life formula in a memory; when said use indication is above a threshold, indicating to a caregiver that at least a portion of said medical sensor has expired. - View Dependent Claims (2, 3, 4, 5)
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6. A system for monitoring medical device use, the system comprising:
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one or more memories storing one or more cumulative use parameters responsive to a cumulative use of a medical device, at least one of said one or more parameters includes a count indicative of transitions of an emitter drive signal; and a processor configured to use a useful-life formula using the one or more cumulative use parameters, configured to calculate a cumulative use indication indicative of the use of the medical device, configured to determine whether said use indication is above a use threshold, and when said use indication is above said threshold, configured to indicate to a caregiver that at least a portion of said medical device has expired.
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7. The system of 6, wherein said medical device comprises an optical sensor configured to output signals indicative of one or more physiological parameters of a monitored patient.
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8. The system of 7, wherein said optical sensor includes reusable and disposable components.
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9. The system of 7, wherein said optical sensor comprises said memory.
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10. The system of 7, comprising a patient monitor, said patient monitor comprising said memory.
Specification