System and method for detection of disconnection in an extracorporeal blood circuit
First Claim
1. A dialysis system having a disconnection monitor for determining if a blood line connection to a patient has been disconnected, comprising:
- a. A blood circuit in fluid communication with a patient and a dialysis circuit;
b. A pressure transducer in pressure communication with said blood circuit wherein said pressure transducer generates a signal indicative of a pulse signal in said blood circuit;
c. A cardiac reference signal generator, wherein said cardiac reference signal generator detects and generates a signal indicative of said patient'"'"'s pulse;
d. The disconnection monitor comprising;
i. A pressure transducer data receiver, wherein said pressure transducer data receiver receives said signal indicative of the pulse signal in said blood circuit;
ii. A cardiac reference signal receiver, wherein said cardiac reference signal receiver receives said signal indicative of the patient'"'"'s pulse; and
iii. A processor, wherein said processor cross-correlates said signal indicative of the pulse signal in said blood circuit and said signal indicative of the patient'"'"'s pulse to generate data indicative of a disconnection of the blood line connection to the patient.
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Accused Products
Abstract
The present invention is directed to a dialysis system with a disconnection monitor for determining if a blood line connection to a patient has been disconnected. It includes a blood circuit in fluid communication with a patient and a dialysis circuit, a pressure transducer for generating a signal indicative of a pulse signal in the blood circuit, a cardiac reference signal generator for generating a signal indicative of the patient'"'"'s pulse and a disconnection monitor. The disconnection monitor includes a pressure transducer data receiver for receiving the signal indicative of the pulse signal in the blood circuit, a cardiac reference signal receiver for receiving the signal indicative of the patient'"'"'s pulse, and a processor for cross-correlating the signal indicative of the pulse signal in the blood circuit and the signal indicative of the patient'"'"'s pulse to generate data indicative of a disconnection of the blood line connection to the patient.
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Citations
20 Claims
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1. A dialysis system having a disconnection monitor for determining if a blood line connection to a patient has been disconnected, comprising:
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a. A blood circuit in fluid communication with a patient and a dialysis circuit; b. A pressure transducer in pressure communication with said blood circuit wherein said pressure transducer generates a signal indicative of a pulse signal in said blood circuit; c. A cardiac reference signal generator, wherein said cardiac reference signal generator detects and generates a signal indicative of said patient'"'"'s pulse; d. The disconnection monitor comprising; i. A pressure transducer data receiver, wherein said pressure transducer data receiver receives said signal indicative of the pulse signal in said blood circuit; ii. A cardiac reference signal receiver, wherein said cardiac reference signal receiver receives said signal indicative of the patient'"'"'s pulse; and iii. A processor, wherein said processor cross-correlates said signal indicative of the pulse signal in said blood circuit and said signal indicative of the patient'"'"'s pulse to generate data indicative of a disconnection of the blood line connection to the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A dialysis system having a manifold in data communication with a disconnection monitor for determining if a blood line connection to a patient has been disconnected, comprising:
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a. The disposable manifold having a blood circuit in fluid communication with a patient and a dialysis circuit; b. A pressure transducer integrated within said manifold and in non-invasive pressure communication with said blood circuit wherein said pressure transducer generates a signal indicative of a pulse signal in said blood circuit; c. A cardiac reference signal generator, wherein said cardiac reference signal generator detects and generates a signal indicative of said patient'"'"'s pulse; d. The disconnection monitor comprising; i. A pressure transducer data receiver, wherein said pressure transducer data receiver receives said signal indicative of the pulse signal in said blood circuit; ii. A cardiac reference signal receiver, wherein said cardiac reference signal receiver receives said signal indicative of the patient'"'"'s pulse; and iii. A processor, wherein said processor cross-correlates said signal indicative of the pulse signal in said blood circuit and said signal indicative of the patient'"'"'s pulse to generate data indicative of a disconnection of the blood line connection to the patient. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification