Patient specific dosing contrast delivery systems and methods

Abstract

This invention relates generally to the field of medical devices for delivering contrast media during medical diagnostic and therapeutic imaging procedures and more particularly, this invention relates to improved contrast media delivery systems and methods of use which allow adjustment of contrast media concentration and injection parameters either before or during an injection procedure to provide patient specific dosing of contrast media, thus decreasing the waste and cost of these procedures while increasing their efficiency.

What is claimed is:  
     
         1 . A method for sensing and adjusting concentration of a fluid medium in a patient's body, comprising: 
 sensing fluid medium concentration in a blood vessel of the patient using a sensor emitting a feedback signal proportional to the contrast media concentration;    sending the feedback signal to an electronic control system connected to the sensor;    automatically adjusting the fluid medium flow rate or concentration to a predetermined level using the electronic control system.    
     
     
         2 . A method according to  claim 1 , wherein the feedback signal is a sensed voltage.  
     
     
         3 . A method according to  claim 1 , wherein the fluid medium comprises contrast medium.