MEDICAL TUBING INSTALLATION DETECTION
2 Assignments
0 Petitions
Accused Products
Abstract
This disclosure relates to detecting fluid in medical tubing. In certain aspects, a method is performed by a data processing apparatus. The method includes controlling repetitive activation of the ultrasonic transmitter. The method also includes receiving a signal from the ultrasonic receiver during an activation of the ultrasonic transmitter. The method also includes determining that fluid is absent or present in a portion of the medical fluid tube based on a comparison between the signal and a threshold value.
9 Citations
42 Claims
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1-19. -19. (canceled)
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20. A dialysis medical system comprising:
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a dialysis medical machine; a control unit; a portable computing device that is configured to wirelessly communicate with the control unit; a medical fluid tube connected to the dialysis medical machine; an ultrasonic transmitter positioned adjacent to the medical fluid tube; an ultrasonic receiver positioned adjacent to the medical fluid tube configured to receive one or more signals in response to the activation of the ultrasonic transmitter; and a computer storage medium encoded with computer program instructions that when executed by the dialysis medical system, cause the control unit to perform operations comprising; controlling repetitive activation of the ultrasonic transmitter, wherein controlling repetitive activation of the ultrasonic transmitter comprises, for each repetition; activating the ultrasonic transmitter for a first period; and deactivating the ultrasonic transmitter for a second period; wherein at least one of the following is provided; (i) the first period and the second period are chosen to minimize cavitation in fluid carried in the medical fluid tube, or (ii) based on comparison of a threshold value and a signal received from the ultrasonic receiver during an activation of the ultrasonic transmitter for the first period, presence or absence of fluid in a portion of the medical fluid tube is determined. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification