Acoustic access disconnection systems and methods
First Claim
Patent Images
1. An access disconnection system comprising:
- a blood treatment unit including a blood treatment unit housing;
a board separate from the blood treatment unit housing;
an arterial line, a portion of the arterial line positioned on the board;
a venous line, a portion of the venous line positioned on the board;
a transmitter positioned on the board and configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient;
a receiver positioned on the board and configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and
electronic circuitry including a wireless communication apparatus positioned on the board, the electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output to the blood treatment unit via a wireless signal sent by the wireless communication apparatus, the disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred.
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Accused Products
Abstract
An access disconnection system includes: an arterial line; a venous line; a transmitter configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred.
257 Citations
22 Claims
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1. An access disconnection system comprising:
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a blood treatment unit including a blood treatment unit housing; a board separate from the blood treatment unit housing; an arterial line, a portion of the arterial line positioned on the board; a venous line, a portion of the venous line positioned on the board; a transmitter positioned on the board and configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver positioned on the board and configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; and electronic circuitry including a wireless communication apparatus positioned on the board, the electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output to the blood treatment unit via a wireless signal sent by the wireless communication apparatus, the disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An access disconnection system comprising:
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a blood treatment unit including a blood treatment unit housing; a board separate from the blood treatment unit housing; an arterial line; a venous line; wherein a portion of at least one of the venous line and the arterial line is positioned on the board; a transmitter positioned on the board and configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver positioned on the board and configured to receive a reflection of the sound wave within the arterial or venous line when connected to the patient; and electronic circuitry including a wireless communication apparatus positioned on the board, the electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output to the blood treatment unit via a wireless signal sent by the wireless communication apparatus, the disconnection output indicative of a change in the reflected sound waves received by the receiver sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An access disconnection system comprising:
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a blood treatment unit including a blood treatment unit housing; a board separate from the blood treatment unit housing; an arterial line, a portion of the arterial line positioned on the board; a venous line, a portion of the venous line positioned on the board; a receiver positioned on the board and configured to receive sound waves within the arterial or venous line when connected to a patient, the waves generated by at least one apparatus coupled to one of the arterial and venous lines; and electronic circuitry including a wireless communication apparatus positioned on the board, the electronic circuitry coupled to the receiver, the circuitry configured to;
(i) develop a characteristic pattern of the sound waves; and
(ii) send a disconnection output to the blood treatment unit via a wireless signal sent by the wireless communication apparatus, the disconnection output indicative of a change in the characteristic pattern, which is sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. - View Dependent Claims (16, 17, 18, 19, 20)
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21. An access disconnection system comprising:
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a blood treatment unit including a blood treatment unit housing; a printed circuit board; an arterial line, a portion of the arterial line positioned on the board; a venous line, a portion of the venous line positioned on the board; a transmitter positioned on the board and configured to transmit a sound wave in one of the arterial and venous lines when connected to a patient; a receiver positioned on the board and configured to receive the sound wave from the other of the arterial and venous lines when connected to the patient; wherein the printed circuit board carries the transmitter, the receiver and electronic circuitry including a wireless communication apparatus, the electronic circuitry coupled to at least one of the transmitter and receiver, the circuitry configured to send a disconnection output to the blood treatment unit via a wireless signal sent by the wireless communication apparatus, the disconnection output indicative of a change in the sound waves received by the receiver from the transmitter sufficient to expect that an access disconnection of one of the arterial line and venous lines has occurred. - View Dependent Claims (22)
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Specification