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:
Mar. 26, 2002
Filed:
Oct. 28, 1999
Applicant:
Inventor:
Sheldon Moberg, Granada Hills, CA (US);
Assignee:
MiniMed Inc., Sylmar, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 1/940 ; F04B 4/900 ; A61M 3/100 ;
U.S. Cl.
CPC ...
G05B 1/940 ; F04B 4/900 ; A61M 3/100 ;
Abstract
A method and apparatus for automatically detecting an occlusion or drive system failure in a medication infusion system is provided. The electrical current to an infusion pump is measured and compared against a baseline average current. If the current exceeds a threshold amount, an alarm is triggered. Alternatively, pump motor encoder pulses are measured during a pump cycle. If the number of pulses do not correspond within a normal range, an alarm is triggered. After any alarm is triggered, the pump motor is driven in reverse for an incremental distance in order to relieve the fluid pressure in the system.
Published as:
CA2345439A1; CA2346525A1; CA2533850A1; CA2669175A1; CA2832936A1; WO0025844A1; WO0025852A1; AU1330500A; AU1456700A; EP1124600A1; EP1124608A1; US6362591B1; US2002043951A1; JP2002528234A; JP2002528676A; US6555986B2; US6585695B1; US2003125672A1; US2004003493A1; JP3546015B2; US2005021000A1; EP1124600B1; ATE289523T1; DE69923858D1; CA2345439C; EP1124608B1; ATE311925T1; DE69923858T2; DE69928827D1; DK1124608T3; EP1642615A2; CA2346525C; EP1642615A3; DE69928827T2; EP1716884A1; JP2006320757A; JP4267206B2; US2009137979A1; CA2533850C; JP2009233388A; US7628782B2; US7658734B2; US2010049135A1; US2010082010A1; US2010125247A1; JP4489063B2; EP2204203A2; EP2223713A2; EP1642615B1; ATE498422T1; DE69943207D1; DK1642615T3; US7981105B2; US7988683B2; US7998131B2; JP4759630B2; US2011238031A1; US8257345B2; US8303572B2; US2013018357A1; US8500716B2; US2013310807A1; EP1716884B1; CA2669175C; DK1716884T3; US2015005716A1; EP2223713A3; CA2832936C; EP2204203A3; EP1642615B2; US9579452B2;