Access disconnection systems with arterial and venous line conductive pathway
First Claim
1. An extracorporeal blood system comprising:
- an extracorporeal blood machine;
an arterial line extending from the extracorporeal blood machine;
a venous line extending from the extracorporeal blood machine; and
an access disconnection circuit for detecting a disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source having first and second signal generation source electrical lines each in electrical communication with blood traveling through the same one of the arterial or venous lines, (ii) a conductive pathway electrically communicating blood traveling through the arterial line with blood traveling through the venous line, and (iii) a signal processing unit positioned and arranged to process a signal generated by the source to detect the disconnection of the at least one of the arterial and venous lines.
2 Assignments
0 Petitions
Accused Products
Abstract
An extracorporeal blood system includes: an extracorporeal blood machine; an arterial line extending from the extracorporeal blood machine; a venous line extending from the extracorporeal blood machine; and an access disconnection circuit for detecting a disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source having first and second signal generation source electrical lines each in electrical communication with blood traveling through one of the arterial or venous lines, (ii) a conductive pathway electrically communicating blood traveling through the arterial line with blood traveling through the venous line, and (iii) a signal processing unit positioned and arranged to process a signal generated by the source to detect the disconnection of the at least one of the arterial and venous lines.
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Citations
21 Claims
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1. An extracorporeal blood system comprising:
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an extracorporeal blood machine; an arterial line extending from the extracorporeal blood machine; a venous line extending from the extracorporeal blood machine; and an access disconnection circuit for detecting a disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source having first and second signal generation source electrical lines each in electrical communication with blood traveling through the same one of the arterial or venous lines, (ii) a conductive pathway electrically communicating blood traveling through the arterial line with blood traveling through the venous line, and (iii) a signal processing unit positioned and arranged to process a signal generated by the source to detect the disconnection of the at least one of the arterial and venous lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An extracorporeal blood system comprising:
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an extracorporeal blood machine; an arterial line extending from the extracorporeal blood machine; a venous line extending from the extracorporeal blood machine; an access disconnection circuit for detecting an access disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source positioned and arranged to inject an electrical signal into the arterial or venous lines, (ii) a conductive pathway electrically communicating blood traveling through the arterial line with blood traveling through the venous line, and (iii) a signal processing unit including first and second signal processing unit electrical lines placed in electrical communication with blood flowing through the same one of the arterial and venous lines, the signal processing unit processing the signal generated by the source for detecting the disconnection of the at least one of the arterial or venous lines. - View Dependent Claims (15, 16, 17)
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18. An extracorporeal blood system comprising:
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an extracorporeal blood machine; an arterial line extending from the extracorporeal blood machine; a venous line extending from the extracorporeal blood machine; an access disconnection circuit for detecting an access disconnection of at least one of the arterial or venous lines from a patient, the access disconnection circuit including (i) a signal generation source positioned and arranged to inject an electrical signal into the same one of the arterial or venous lines, (ii) a signal processing unit positioned and arranged to process the signal generated by the source for detecting the disconnection of the at least one of the arterial and venous lines, and (iii) a conductive pathway, separate from the signal generation source and the signal processing unit, placed in electrical communication with the arterial and venous lines so as to electrically bypass the extracorporeal blood machine. - View Dependent Claims (19, 20, 21)
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Specification