Acoustic access disconnection systems and methods
First Claim
1. An access disconnection system comprising:
- a blood treatment machine including an enclosure;
an access site detection housing separate from the blood treatment machine enclosure;
a transmitter positioned in the access site detection housing and configured to transmit an ultrasound wave into the blood stream of a patient;
a receiver positioned in the access site detection housing and configured to receive a reflection of the ultrasound wave within the blood stream of the patient; and
electronic circuitry in communication with the transmitter and the receiver, the electronic circuitry supported by the access site detection housing, the transmitter configured to send a disconnection output to the blood treatment machine, the disconnection output indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of an arterial line or a venous line has occurred.
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Accused Products
Abstract
An access disconnection system includes a blood treatment machine including a housing, an access site detection housing separate from the blood treatment machine housing, a transmitter positioned in the access site housing and configured to transmit an ultrasound wave into a blood stream of a patient, a receiver positioned in the access site housing and configured to receive a reflection of the ultrasound wave from the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver. The electronic circuitry is supported by the access site detection housing, and the transmitter is configured to send a wireless disconnection output to the blood treatment machine. The disconnection output is indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of the arterial line and the venous line has occurred.
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Citations
20 Claims
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1. An access disconnection system comprising:
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a blood treatment machine including an enclosure; an access site detection housing separate from the blood treatment machine enclosure; a transmitter positioned in the access site detection housing and configured to transmit an ultrasound wave into the blood stream of a patient; a receiver positioned in the access site detection housing and configured to receive a reflection of the ultrasound wave within the blood stream of the patient; and electronic circuitry in communication with the transmitter and the receiver, the electronic circuitry supported by the access site detection housing, the transmitter configured to send a disconnection output to the blood treatment machine, the disconnection output indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of an arterial line or a venous line has occurred. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An access disconnection system comprising:
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a blood treatment machine including an enclosure; an access site detection housing separate from the blood treatment machine enclosure; a transmitter positioned in the access site detection housing, the transmitter configured to transmit an ultrasound wave into the blood stream of a patient; a receiver positioned in the access site detection housing, the receiver configured to receive a reflection of the ultrasound wave within the blood stream of the patient; and electronic circuitry supported by the access site detection housing, the electronic circuitry coupled to the transmitter, the transmitter configured to send a disconnection output, the disconnection output indicative of a change in the reflected ultrasound wave received by the receiver sufficient to expect that an access disconnection of one of an arterial line or a venous line has occurred. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An access disconnection system comprising:
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a blood treatment machine including an enclosure; an access site detection housing separate from the blood treatment machine enclosure; a transmitter configured to transmit an ultrasound wave into a blood stream of a patient; a receiver configured to receive a reflection of the ultrasound wave from the blood stream of the patient, wherein at least one of the transmitter and the receiver is supported by the access site detection housing; and electronic circuitry supported by the access site detection housing, the electronic circuitry configured to send a disconnection output to a receiver of the blood treatment machine, which indicates to the machine that an access disconnection of one of an arterial line or a venous line has occurred. - View Dependent Claims (19, 20)
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Specification