Patent ID: 7228160
Filing Date: 2007-06-05
Classification: C12Q

Abstract:
1. A method of measuring glucose concentration, comprising: providing a first sensor wherein luminescent material encapsulated by a first oxygen permeable polymer barrier is located proximal a distal end of a first optical fiber; providing a second sensor wherein luminescent material and glucose oxidase adjacent each other and together encapsulated by a second oxygen permeable polymer barrier are located proximal a distal end of a second optical fiber in near proximity to said first sensor for placement of said first and second sensors in the vicinity of a peritoneal cavity of a medical patient; providing a catheter, comprising at least one auxiliary catheter lumen in communication with each said luminescent material, whereby said luminescent material upon becoming degraded through repeated fluorescing may be replaced with upgraded or new luminescent material; providing a source of blue light, emissions of which transmitted through said distal ends of said first and second optical fibers are capable of fluorescing within said luminescent material of both said first and second sensors and of being reemitted in a form of red light from both said first and second sensors; providing a photoreceptor structured and arranged to receive said reemitted red light from both said first and second sensors, said photoreceptor being in communication with a processor capable of comparing information transmitted through said photoreceptor from said first and second sensors; providing a cannula, comprising an axial lumen and a leading end susceptible to insertion through an abdominal wall of said patient; inserting said leading end into said vicinity of said peritoneal cavity of said patient; introducing both said first and second sensors through said axial lumen and into said vicinity of said peritoneal cavity; measuring glucose concentration with said first and second sensors; and displaying said measured glucose concentration.