Access disconnection systems using conductive contacts
First Claim
1. An extracorporeal blood system comprising:
- an extracorporeal blood machine including an extracorporeal blood circuit;
an access device enabling the extracorporeal blood circuit to be connected to a patient;
first and second coupling devices for connecting respectively to first and second tubes of the extracorporeal circuit;
first and second electrodes held, at least in part, by the first and second coupling devices so as to contact blood flowing through the extracorporeal blood circuit, the first and second electrodes enabling an electrical signal to be injected into the extracorporeal blood circuit;
first and second contact members contacting the first and second electrodes respectively, wherein at least one of the first and second coupling devices includes a stem portion enabling at least one of the first and second contact members to contact at least one of the first and second electrodes, respectively, on an outer portion of the at least one electrode and without disturbing blood flowing through the at least one coupling device; and
electronics coupled operably to the first and second contact members for applying the electrical signal, the signal used to monitor the access device.
2 Assignments
0 Petitions
Accused Products
Abstract
An extracorporeal blood machine includes a blood circuit; an access device enabling the blood circuit to be connected to a patient; first and second coupling devices for connecting to first and second tubes of the circuit; first and second electrodes held by the first and second coupling devices to contact blood flowing through the blood circuit, the electrodes enabling an electrical signal to be injected into the circuit; first and second contact members contacting the first and second electrodes, wherein at least one of the coupling devices includes a stem portion enabling at least one of the first and second contact members to contact at least one of the first and second electrodes, respectively, on an outer portion of the at least one electrode without disturbing blood flowing through the coupling device; and electronics coupled operably to the first and second contact members for applying the electrical signal.
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Citations
18 Claims
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1. An extracorporeal blood system comprising:
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an extracorporeal blood machine including an extracorporeal blood circuit; an access device enabling the extracorporeal blood circuit to be connected to a patient; first and second coupling devices for connecting respectively to first and second tubes of the extracorporeal circuit; first and second electrodes held, at least in part, by the first and second coupling devices so as to contact blood flowing through the extracorporeal blood circuit, the first and second electrodes enabling an electrical signal to be injected into the extracorporeal blood circuit; first and second contact members contacting the first and second electrodes respectively, wherein at least one of the first and second coupling devices includes a stem portion enabling at least one of the first and second contact members to contact at least one of the first and second electrodes, respectively, on an outer portion of the at least one electrode and without disturbing blood flowing through the at least one coupling device; and electronics coupled operably to the first and second contact members for applying the electrical signal, the signal used to monitor the access device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An extracorporeal blood system comprising:
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an extracorporeal blood machine including an extracorporeal blood circuit that defines a lumen through which blood of a patient can flow; an access device enabling the extracorporeal blood circuit to be connected to the patient; first and second electrodes contacting blood flowing within the lumen, the first and second electrodes enabling an electrical signal to be injected into the extracorporeal blood circuit; first and second coupling devices holding the first and second electrodes, respectively; first and second contact members, the first and second coupling devices branching off of the lumen so that the first and second contact members contact the first and second electrodes in a manner such that blood flow within the lumen is undisturbed by the contacting; and electronics coupled operably to the first and second contact members outside the lumen, the electronics configured to apply a signal to the blood for monitoring the access device. - View Dependent Claims (12, 13, 14, 15)
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16. An extracorporeal blood system comprising:
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an extracorporeal blood machine including an extracorporeal blood circuit; an access device enabling the extracorporeal blood circuit to be connected to a patient; first and second coupling devices for connecting respectively to first and second tubes of the extracorporeal circuit, the first and second coupling devices each including an opening branching off of a fluid flow portion of the coupling device; first and second electrodes held by the first and second coupling devices so as to contact blood flowing through the extracorporeal blood circuit, the first and second electrodes enabling an electrical signal to be injected into the extracorporeal blood circuit; first and second contact members contacting outer portions of the first and second electrodes via the respective branched openings of the first and second coupling devices in a manner such that blood flow within the extracorporeal circuit is undisturbed by the contacting; and electronics coupled operably to the first and second contact members for applying the electrical signal, the signal used to monitor the access device. - View Dependent Claims (17, 18)
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Specification