Ultrasound access disconnection systems and methods
First Claim
1. An access disconnection system comprising:
- 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 detection housing and configured to transmit an ultrasound wave into a blood stream of a patient;
a receiver positioned in the access site detection 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 supported by the access site detection housing, the transmitter configured to send a wireless 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 the arterial line and the 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.
226 Citations
20 Claims
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1. An access disconnection system comprising:
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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 detection housing and configured to transmit an ultrasound wave into a blood stream of a patient; a receiver positioned in the access site detection 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 supported by the access site detection housing, the transmitter configured to send a wireless 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 the arterial line and the 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 a housing; an access site detection housing separate from the blood treatment machine housing; a transmitter positioned in the access site detection housing, the transmitter configured to transmit an ultrasound wave into a 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 from 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 wireless 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 the arterial line and the 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 a housing; an access site detection housing separate from the blood treatment machine housing; 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 wireless disconnection output to a wireless receiver of the blood treatment machine, which indicates to the machine that an access disconnection of one of the arterial and venous lines has occurred. - View Dependent Claims (19, 20)
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Specification