| US 7,530,962 B2 | ||
| Method for detecting the disconnection of an extracorporeal device using a patient's endogenous electrical voltages | ||
| Edward Allan Ross, 8917 SW. 42nd Pl., Gainesville, Fla. 32608 (US); and Rosalind J. Sadleir, 1020 NE. 3rd St., Gainesville, Fla. 32601 (US) | ||
| Filed on Jun. 08, 2006, as Appl. No. 11/422,891. | ||
| Claims priority of provisional application 60/690840, filed on Jun. 16, 2005. | ||
| Prior Publication US 2007/0000847 A1, Jan. 04, 2007 | ||
| Int. Cl. A61M 37/00 (2006.01); C02F 1/00 (2006.01); G01F 1/86 (2006.01) | ||
| U.S. Cl. 604—4.01 [604/6.06; 210/739; 210/741; 73/861.02] | 18 Claims |
| 1. A method of detecting the disconnection of an extracorporeal device, wherein blood from proximate vascular access points
of a patient travels through an extracorporeal blood path comprising an arterial line in fluid communication with a first
vascular access point, a blood treatment device, and a venous line in fluid communication with a second vascular access point,
comprising:
(a) removing blood from a patient, passing it through the extracorporeal device, and returning it to the patient;
(b) obtaining a value representative of endogenous electrical signals of a patient along the extracorporeal blood path;
(c) comparing the obtained value to a predetermined threshold value; and
(d) triggering a safety response in the extracorporeal blood path when the obtained value substantially meets or exceeds the
threshold value, thereby indicating disconnection.
|