Intravascular liquid velocity sensing method using a polarographic electrode
Oxygen measuring electrode assembly Patent #: 4185620
ApplicationNo. 06/054600 filed on 07/03/1979
US Classes:600/359, Temperature compensated204/403.06, With semipermeable membrane204/415, Selectively permeable membrane600/479Cardiovascular testing
ExaminersPrimary: Howell, Kyle L.
Assistant: Jaworski, Francis J.
Attorney, Agent or Firm
International ClassA61B 5/00 (20060101)
AbstractA multi-purpose polarographic oxygen-concentration transducer of the transcutaneous-measurement type, a face of it being laid against the tissue of interest, is able to generate signals beyond those indicating mere total oxygen concentration, and can additionally generate signals indicating concentration of oxygen chemically bound to blood hemoglobin, as well as also indicating pulse rate and pulse waveform, blood flow rate through the capillary network of such tissue, the elastic behavior of the capillaries, and the flow rate of blood through such tissue exclusive of that flowing through the capillary network. The transducer is thermostatically temperature-controlled and emits light onto the tissue against which it is laid and detects the light received back by reflection and/or by transmission of such light into and out of the tissue against which the transducer is laid.