PROBE WITH GAS PERMEABLE MATERIAL SURROUNDING A GAS SENSOR ASSEMBLY

• US 20080125635A1
• Filed: 02/07/2008
• Published: 05/29/2008
• Est. Priority Date: 09/09/2003
• Status: Abandoned Application

• Current Assignee: Amos Gottlieb, Harry D. Nguyen, James D. Mikkelsen, Margaret R. Webber, Paul D. Corl
• Original Assignee: Amos Gottlieb, Harry D. Nguyen, James D. Mikkelsen, Margaret R. Webber, Paul D. Corl
• Inventors: Mikkelsen, James D., Corl, Paul D., Nguyen, Harry D., Webber, Margaret R., Gottlieb, Amos
• Application Number:
  US12/027,915
• Publication Number:
  US 20080125635A1
• Time in Patent Office: Days
• US Class Current: 600/364
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/6852 Catheters

Abstract

An apparatus for use with a patient having a vessel carrying blood to ascertain characteristics of the blood. The apparatus includes a display module and a probe having a distal extremity adapted to be inserted into the vessel of the patient and having a proximal extremity coupled to the display module. The probe includes a sensor in the distal extremity for providing an electrical signal to the display module when the probe is disposed in the blood. The probe can have an antithrombogenic surface treatment for inhibiting the adhesion of blood components to the probe when disposed in the blood.

Claims

1. A probe for use in a patient having a vessel carrying blood to ascertain characteristics of the blood comprising a cannula having proximal and distal extremities, the distal extremity being adapted to be inserted into the vessel of the patient, a gas sensor assembly mounted inside the distal extremity of the cannula, the cannula having an annular window of a gas permeable material extending around the gas sensor assembly.

2. The probe of claim 1 wherein the entire cannula is made of the gas permeable material.

3. The probe of claim 2 wherein the gas permeable material is polymethylpentene.