Access disconnection systems and methods
First Claim
Patent Images
1. A device for providing electrical contact with a medical fluid, the device comprising:
- a tube portion of a blood tubing set used during dialysis therapy through which the medical fluid can flow; and
a conductive element adapted to self-sealingly pierce the tube portion of the blood tubing set, the conductive element having a first portion exposed to the medical fluid and a second portion external to the tube.
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Accused Products
Abstract
Apparatuses, devices, systems and methods for detecting access disconnection are provided. The present invention includes electrical contacts in fluid and electrical communication with a fluid passing between a patient and a medical system during therapy. In this regard, the present invention can use a direct-contact measurement to detect access disconnection, such as dislodgment of an access device from the patient through which fluid can flow during therapy including, for example, medication delivery, dialysis therapy and the like.
142 Citations
15 Claims
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1. A device for providing electrical contact with a medical fluid, the device comprising:
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a tube portion of a blood tubing set used during dialysis therapy through which the medical fluid can flow; and a conductive element adapted to self-sealingly pierce the tube portion of the blood tubing set, the conductive element having a first portion exposed to the medical fluid and a second portion external to the tube. - View Dependent Claims (2, 3)
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4. A device for providing electrical contact with a medical fluid in a fluid conduit, the device comprising:
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a first member including an annular portion capable of accommodating a conductive member in fluid contact with the medical fluid and a first stem portion connected to the annular portion wherein the stem portion has an opening extending therethrough to the annular portion; a second member including a base portion with a groove region and a second stem portion with an opening extending therethrough to the groove region allowing the first member to be inserted and secured to the second member; and a contact member adapted to fit the first and second stem portions allowing the contact member to abut against at least a portion of the conductive member allowing an electrical connection to be made between the conductive member and the contact member; wherein the first and second members and the contact member are adapted to cooperate with a blood tubing set used during dialysis therapy. - View Dependent Claims (5, 6)
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7. A blood tubing set used during medical therapy to connect a patient to a medical system, the blood tubing set comprising:
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a first blood line and a second blood line connecting the patient to the medical system via an access device inserted within the patient allowing blood to flow between the patient and the medical system with an electrical signal passing therein; and a pair of electrical contacts adapted to pierce the first and second blood lines to establish fluid connection with the blood allowing detection of dislodgment of the access device during medical therapy. - View Dependent Claims (8, 9, 10)
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11. A blood tubing set used during dialysis therapy to connect a patient to a dialysis system, the blood tubing set comprising:
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a first blood line and a second blood line adapted to connect the patient to the dialysis system via an access device inserted within the patient allowing blood to flow between the patient and the dialysis system with an electrical signal passing therein; a pair of electrical contacts adapted to pierce first and second blood lines to establish fluid connection with the blood; and an electrical contact coupling device attaching at least one of the electrical contacts to the first and second blood lines allowing detection of dislodgment of the access device during dialysis therapy. - View Dependent Claims (12, 13, 14)
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15. A blood tubing set used during dialysis therapy to connect a patient to a dialysis system, the blood tubing set comprising:
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a first blood line and a second blood line adapted to connect the patient to the dialysis system via an access device inserted within the patient allowing blood to flow between the patient and the dialysis system with an electrical signal passing therein; a pair of electrical contacts adapted to pierce the first and second blood lines in fluid connection with the blood; and an electrical contact coupling device attaching at least one of the electrical contacts to the first and second blood lines allowing detection of dislodgment of the access device during dialysis therapy, the electrical contact coupling device including; a first member including an annular portion capable of accommodating a conductive member in fluid contact with the blood and a first stem portion connected to the annular portion wherein the first stem portion has an opening extending therethrough to the annular portion; a second member including a base portion with a groove region and a second stem portion with an opening extending therethrough to the groove region allowing the first member to be inserted and secured to the second member; and a contact member adapted to fit the first and second stem portions allowing the contact member to abut against at least a portion of the conductive member allowing an electrical connection to be made between the conductive member and the contact member.
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Specification