The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2004
Filed:
May. 20, 2002
B. Braun Medical, Inc., Carrollton, TX (US);
Abstract
A tubing installation checking device is provided for determining proper installation of a tubing along a tube receiving channel in a peristaltic pump of the type having a tube receiving channel and a door for holding a tubing therein. The tubing installation checking device includes a pressure sensor held in the peristaltic pump positioned along the tube receiving channel downstream from the pumping mechanism for sensing pressure in the tubing and for providing a signal representing the sensed pressure. A valve is provided held in the peristaltic pump along the tube receiving channel downstream from the pressure sensor for closing the tubing when it is installed in the tube receiving channel. A computer program is provided for closing the valve, for activating the pumping mechanism for a partial pumping stroke, for receiving a first pressure signal from said pressure sensor indicating the sensed pressure after the partial pumping stroke, for holding the pumping mechanism stationary during a predetermined period of time, for receiving a second pressure signal indicating the pressure in the tubing after the predetermined period of time, for comparing the first and second pressure signals to determine whether there is leakage in the tubing indicating improper tubing installation and if so for providing an alarm signal to indicate improper tubing installation.