Patient specific dosing contrast delivery systems and methods

• US 20030050556A1
• Filed: 05/06/2002
• Published: 03/13/2003
• Est. Priority Date: 09/21/1994
• Status: Abandoned Application

• Current Assignee: Medrad Incorporated (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uber, Arthur E. III, Hirschman, Alan D., Almon-Martin, Rosemary, Welch, Thomas R.
• Application Number:
  US10/139,995
• Publication Number:
  US 20030050556A1
• Time in Patent Office: Days
• US Class Current: 600/420
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/481 involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream analysis of echo signal exploiting properties of a contrast enhancer in devices for short-range imaging with acoustic waves G01S7/52039
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/80 voice-operated command
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: Y10S 128/12 Pressure infusion
• CPC Class Codes: Y10S 128/13 Infusion monitoring

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.

Claims

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.