METHOD FOR DISCRIMINATING BETWEEN OPERATING CONDITIONS IN MEDICAL PUMP

• Main Author: CLARK E. FORTNEY
• Format: Patent
• Language: English; Spanish
• Published: 08.06.2005
• Edition: 7
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

A method is disclosed for determining the operating condition of a medical pump based on data derived from a pressure sensor and a position sensor. The pressure sensor generates pressure data by sensing the force on the pumping element. The position sensor generates position data by tracking the pumping cycle and determining the position of the pumping element. The pump pressure data and pump position data are processed and the calculated results compared with a pre-determined threshold value to determine the operating condition of the pump. The three main types of operating conditions of concern are the following: normal condition, where liquid is present and no leaks exist in pumping chamber; leak condition, where liquid is present but a leak exists in the pumping chamber; and air stroke condition, where the chamber contains some air. Se describe un metodo para determinar la condicion de operacion de una bomba medica en base a datos derivados de un sensor de presion y un sensor de posicion. El sensor de posicion genera datos de presion detectando la fuerza en el elemento de bombeo. El sensor de posicion genera datos de posicion rastreando el ciclo de bombeo y determinando la posicion del elemento de bombeo. Los datos de presion de bomba y los datos de posicion de bomba se procesan, y los resultados calculados se comparan con un valor de umbral predeterminado determinan la condicion de operacion de la bomba. Los tres principales tipos de condiciones de operacion de importancia son los siguientes: condicion normal, donde el liquido esta presente y no existe fuga en la camara de bombeo; condicion de fuga, en donde el liquido esta presente pero existe una fuga en la camara de bombeo; y condicion de choque de aire, en donde la camara contiene algo de aire.