Isolation and communication element for a resposable pulse oximetry sensor
First Claim
Patent Images
1. A sensor comprising:
- a connector adapted to electrically communicate with a physiological measurement instrument;
a breakable conductor that transitions from a continuity state to a discontinuity state as the result of sensor wear; and
an isolation and communications element (ICE) having an instrument port and an electrically isolated loop port, said instrument port in communications with said connector and said loop port in communications with said breakable conductor.
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Abstract
A sensor has a connector adapted to electrically communicate with a physiological measurement instrument. A breakable conductor incorporated by the sensor transitions from a continuity state to a discontinuity state as the result of sensor wear. An isolation and communications element (ICE) has an instrument port and an electrically isolated loop port. The instrument port is in communications with the connector and the loop port is in communications with the breakable conductor. The ICE generates a control output responsive to the discontinuity state to render the sensor inoperable.
251 Citations
21 Claims
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1. A sensor comprising:
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a connector adapted to electrically communicate with a physiological measurement instrument;
a breakable conductor that transitions from a continuity state to a discontinuity state as the result of sensor wear; and
an isolation and communications element (ICE) having an instrument port and an electrically isolated loop port, said instrument port in communications with said connector and said loop port in communications with said breakable conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 18, 20)
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10. A sensor comprising:
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a connector adapted to electrically communicate with a physiological measurement instrument;
a breakable conductor configured as a current loop that becomes an open circuit as the result of sensor wear, said conductor electrically isolated from said connector; and
an electrical component operable from said instrument via said connector said electrical component rendered inoperable in response to said open circuit. - View Dependent Claims (12)
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14. A sensor method comprising the steps of:
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incorporating a breakable conductor within a sensor to indicate sensor wear;
isolating said conductor from a measurement connector; and
disabling a sensor circuit in response to a discontinuity in said breakable conductor. - View Dependent Claims (16, 17)
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19. A sensor configured to connect to a measurement instrument comprising:
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a conductive means for indicating sensor wear;
an optical means for isolating said conductive means from said instrument; and
a switching means for disabling a circuit portion of said sensor in response to a discontinuity in said conductive means. - View Dependent Claims (21)
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Specification