US 12,233,191 B2
Medical device leak sensing devices, methods, and systems
Jeffrey H. Burbank, Manchester, MA (US); Dennis M. Treu, Castle Rock, CO (US); James M. Brugger, Newburyport, MA (US); and Daniel Joseph Rubery, Jr., Nashua, NH (US)
Assigned to NxStage Medical, Inc., Lawrence, MA (US)
Filed by NxStage Medical, Inc., Lawrence, MA (US)
Filed on Jul. 5, 2023, as Appl. No. 18/218,272.
Application 16/715,288 is a division of application No. 15/655,091, filed on Jul. 20, 2017, granted, now 10,525,190, issued on Jan. 7, 2020.
Application 15/655,091 is a division of application No. 14/238,434, granted, now 9,724,459, issued on Aug. 8, 2017, previously published as PCT/US2012/050965, filed on Aug. 15, 2012.
Application 18/218,272 is a continuation of application No. 16/715,288, filed on Dec. 16, 2019, granted, now 11,738,133.
Claims priority of provisional application 61/523,752, filed on Aug. 15, 2011.
Prior Publication US 2023/0338635 A1, Oct. 26, 2023
Int. Cl. A61M 1/36 (2006.01); G01M 3/04 (2006.01)
CPC A61M 1/3656 (2014.02) [A61M 1/367 (2013.01); G01M 3/04 (2013.01); A61M 2205/15 (2013.01); Y10T 137/5762 (2015.04)] 8 Claims
OG exemplary drawing
 
1. An apparatus for performing a blood treatment, comprising:
a blood pump constructed to pump blood to a patient through a first blood line of a fluid circuit;
a pressure sensor coupled to the first blood line for measuring a pressure therein;
one or more accelerometers connected to the fluid circuit and configured to detect accelerations of at least one of the patient and portions of the fluid circuit; and
a control module configured to generate a first signal indicating a probability of a leak in the first blood line responsively to a predefined change in the pressure in the first blood line as measured by the pressure sensor, wherein
the control module is further configured to inhibit generation of the first signal when the predefined change in the pressure is detected contemporaneously with an acceleration detected by the one or more accelerometers.