Synchronization of Repetitive Therapeutic Interventions
A medical device of the type used for assisting a user in manually delivering repetitive therapy to a patient (e.g., chest compressions or ventilations in cardiac resuscitation), the device comprising a feedback device configured to generate feedback cues to assist the user in timing the delivery of the repetitive therapy, at least one sensor or circuit element configured to detect actual delivery times, at which the user actually delivers the repetitive therapy, and a processor, memory, and associated circuitry configured to compare the actual delivery times to information representative of desired delivery times to determine cue times at which the feedback cues are generated by the feedback device.
1 . A medical device for assisting a user in manually delivering repetitive therapy to a patient, the device comprising:
a visual display for generating a visual, non-verbal feedback graphic to provide the user with a graphical indication of how well the repetitive therapy is being delivered;
at least one sensor for sensing at least one parameter relating to how well the therapy is being delivered; and
a processor, memory, and associated circuitry configured to process at least one output from at least one sensor to control the appearance of the graphical indication on the visual display.
2 . The medical device of claim 1 wherein the repetitive therapy comprises chest compressions as part of cardiac resuscitation.
3 . The medical device of claim 1 wherein the repetitive therapy comprises ventilation as part of cardiac resuscitation.
4 . The medical device of claim 2 wherein the graphical indication comprises at least a first graphical element that provides the user with feedback generally on a compression by compression basis as to approximately how well individual compressions are being delivered.
5 . The medical device of claim 4 wherein the graphical indication further comprises at least a second graphical element that provides the user with feedback on an estimate of the cumulative impact of past compressions on coronary perfusion pressure.
6 . The medical device of claim 5 wherein the first graphical element is the color or other graphical aspect of the boundary of a bar element, and the second graphical element is the percentage area within the bar element that bears a color or other graphical aspect.
7 . The medical device of claim 1 wherein there are at least two sensors and at least two parameters, and the graphical indication comprises
a first graphical element comprising a first indicator that moves along a first axis to convey a value of a first parameter and
a second graphical element comprising a second indicator that moves along a second axis orthogonal to the first axis to convey a value of a second parameter.
8 . The medical device of claim 7 wherein there are at least three parameters, and wherein the graphical indication further comprises a third graphical element positioned at the intersection of the first and second axes, wherein the third graphical element is configured to convey a value of a third parameter.