Patent · US Active

Systems and methods for dialysis access disconnection

US8529490B2 · kind B2 · utility

26Cited by

319References

7Claims

0Family size

Assignees

Baxter International Inc. · US
Baxter Healthcare SA · CH

Inventors

Ramesh Wariar · Tampa, US
James Han · Palm Harbor, US
George Lamberson · New Port Richey, US
Thomas P. Hartranft · Clearwater, US
Thore Falkvall · Viken, SE

Key dates

Filing date	Jun 9, 2011
Grant date	Sep 10, 2013
Priority date	—
Expiry date	Jul 2, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2205/50
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An access disconnection method for a machine employing a blood circuit, the blood circuit having a machine segment and a patient access segment, the method comprising: injecting an electrical signal into the blood circuit between the machine segment and the patient access segment; attempting to cause the electrical signal to flow through only the patient access segment and to bypass the machine segment; and measuring the signal in the patient access segment and determining that an access disconnection event has occurred upon a threshold change in the measured signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.