Acoustic respiratory monitoring sensor with probe-off detection

An acoustic sensor configured to non-invasively detect acoustic vibrations associated with a medical patient, said acoustic vibrations indicative of one or more physiological parameters of the medical patient, said acoustic sensor comprising:

• a sensor support;
• at least one sound sensing membrane supported by the sensor support and configured to detect acoustic vibrations associated with a medical patient and produce a membrane signal corresponding to the acoustic vibrations based at least in part on an attached state of the acoustic sensor;
• and
• a probe-off assembly supported by the sensor support, the probe-off assembly configured to produce a probe-off signal responsive to the attached state of the acoustic sensor and to a detached state of the acoustic sensor,
• wherein a mechanically active portion of the at least one sound sensing membrane configured to move in response to the acoustic vibrations is further configured to be located between the medical patient's skin and the probe-off assembly when the sensor is in the attached state.

An acoustic sensor configured to non-invasively detect acoustic vibrations associated with a medical patient, said acoustic vibrations indicative of one or more physiological parameters of the medical patient, said acoustic sensor comprising:

• a sensor support;
• at least one sound sensing membrane supported by the sensor support and configured to detect acoustic vibrations associated with a medical patient and produce a membrane signal corresponding to the acoustic vibrations based at least in part on an attached state of the acoustic sensor;
• a probe-off assembly supported by the sensor support, the probe-off assembly configured to produce a probe-off signal responsive to the attached state of the acoustic sensor and to a detached state of the acoustic sensor;
• and
• at least one attachment member supported by the sensor support and located in a first position in the detached state of the acoustic sensor and located in a second position in the attached state of the acoustic sensor that is different than the first position,
• wherein the probe-off signal is responsive to movement of the attachment member between the first position and the second position to indicate a change in an integrity of a connection between the acoustic sensor and the medical patient.

A method for determining a connection state between a non-invasive acoustic sensor and a medical patient, the method comprising:

• outputting from a non-invasive acoustic sensor comprising a sensor support and a probe-off assembly, an attachment state signal indicating that the acoustic sensor is in an unattached state based at least in part on at least one attachment member of the acoustic sensor being in a first position, the acoustic sensor further comprising at least one sound sensing membrane configured to detect acoustic vibrations indicative of one or more physiological parameters of the medical patient;
• outputting the attachment state signal from the acoustic sensor indicating that the acoustic sensor is in an attached state based at least in part on the at least one attachment member moving from the first position to a second position, wherein the attachment state signal indicates a change in an integrity of a connection between the acoustic sensor and the medical patient;
• and
• outputting a data signal from the sensor indicative of the one or more physiological parameters based at least in part on the attachment state signal indicating that the acoustic sensor is in the attached state.

An acoustic sensor configured to non-invasively detect a probe-off condition, said acoustic sensor comprising:

• a sensor support;
• a sound sensing device supported by the sensor support and configured to detect acoustic vibrations associated with a medical patient and produce an acoustic signal corresponding to the acoustic vibrations;
• and
• one or more probe-off elements coupled to at least one of the sensor support or the sound sensing device, the one or more probe-off elements configured to produce a signal indicative of a probe-off condition responsive to the acoustic sensor in a detached state and/or in an attached state, wherein at least a portion of the sensor support is between a patient contact surface of the acoustic sensor and the one or more probe-off elements.

An acoustic sensor configured to non-invasively detect a probe-off condition, said acoustic sensor comprising:

• a sensor support;
• a sound sensing device supported by the sensor support and configured to detect acoustic vibrations associated with a medical patient and produce an acoustic signal corresponding to the acoustic vibrations;
• and
• one or more probe-off elements coupled to at least one of the sensor support or the sound sensing device, the one or more probe-off elements configured to produce a signal responsive to the acoustic sensor in a detached state and/or in an attached state,
• wherein a mechanically active portion of the sound sensing device is configured to move in response to the acoustic vibrations is further configured to be located between the medical patient's skin and the one or more probe-off elements based at least in part on the sensor being in the attached state.

An acoustic sensor configured to non-invasively detect a probe-off condition, said acoustic sensor comprising:

• a sensor support;
• a sound sensing device supported by the sensor support and configured to detect acoustic vibrations associated with a medical patient and produce an acoustic signal corresponding to the acoustic vibrations;
• one or more probe-off elements coupled to at least one of the sensor support or the sound sensing device, the one or more probe-off elements configured to produce a signal responsive to the acoustic sensor in a detached state and/or in an attached state;
• and
• at least one attachment member supported by the sensor support and located in a first position in the detached state of the acoustic sensor and located in a second position in the attached state of the acoustic sensor that is different than the first position,
• wherein the signal is responsive to movement of the attachment member between the first position and the second position to indicate a change in an integrity of a connection between the acoustic sensor and the medical patient.