Device And Method For Continuous Monitoring Of A Chemical Parameter Of An Individual

• US 20100179397A1
• Filed: 01/11/2010
• Published: 07/15/2010
• Est. Priority Date: 01/09/2009
• Status: Abandoned Application

• Current Assignee: Therasyn Sensors Inc.
• Original Assignee: Therasyn Sensors Inc.
• Inventors: Schentag, Jerome J., Bright, Frank V., D'Andrea, David T.
• Application Number:
  US12/685,480
• Publication Number:
  US 20100179397A1
• Time in Patent Office: Days
• US Class Current: 600/309
• CPC Class Codes: A61B 5/00 Measuring for diagnostic purposes radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00; Identification of persons
• CPC Class Codes: A61B 5/14514 using means for aiding extraction of interstitial fluid, e.g. microneedles or suction
• CPC Class Codes: A61B 5/14525 using microdialysis
• CPC Class Codes: A61B 5/14528 invasively
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150229 Pumps for assisting the blood sampling
• CPC Class Codes: A61B 5/151 Devices specially adapted for taking samples of capillary blood, e.g. by lancets , needles or blades
• CPC Class Codes: A61B 5/154 Devices using pre-evacuated means
• CPC Class Codes: A61B 5/412 Detecting or monitoring sepsis

Abstract

A device according to an embodiment of the invention includes a microdialysis catheter having an inlet and an outlet, a pump, and a flow-through monitor. The monitor is configured to analyze dialysate present in perfusion fluid exiting the microdialysis catheter. A chemical parameter may thereby be continuously monitored.

Claims

1. A device for continuous monitoring of a chemical parameter of an individual, comprising:

a microdialysis catheter having an inlet for receiving a perfusion fluid and an outlet for exiting the perfusion fluid containing dialysate;

a pump in fluid communication with the inlet of the catheter and configured to pump perfusion fluid through the microdialysis catheter; and

a flow-though monitor in fluid communication with the outlet of the catheter, wherein the monitor is configured to analyze the dialysate present in the perfusion fluid and detect the chemical parameter.

2. The device of claim 1, further comprising a reservoir in fluid communication with the monitor.

3. The device of claim 1, further comprising a transmitter configured to transmit monitored data from the monitor to a receiver.

4. The device of claim 1, wherein the flow-through monitor is removably attached to the individual.

5. A method for continuously monitoring a chemical parameter of an individual, comprising the steps of:

providing a continuous monitor including;

a microdialysis catheter having an inlet for receiving a perfusion fluid and an outlet for exiting the perfusion fluid containing dialysate;

a pump in fluid communication with the inlet of the catheter and configured to pump perfusion fluid through the microdialysis catheter; and

a flow-though monitor in fluid communication with the outlet of the catheter;

using the pump to cause perfusion fluid to flow into the inlet of the microdialysis cathether and to cause perfusion fluid and dialysate to exit the outlet of the microdialysis catheter, the perfusion fluid and dialysate flowing into the flow-through monitor; and

using the flow-through monitor to analyze the dialysate present in the perfusion fluid and detect the chemical parameter.