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7146203 |
Implantable biosensor and methods of use thereof
Provided herein is a stabilized oxygen transport matrix that includes a reversible oxygen binding protein, such as hemoglobin, immobilized throughout the stabilized oxygen transport matrix. The...
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5505828 |
Calibration solutions useful for analysis of biological fluids and methods employing same
Novel calibration solutions are provided which are useful, for example, with sensor assemblies used for analysis of CO 2 , and optionally, for concurrent analysis of O 2 , especially in combination...
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5225063 |
Apparatus for the electrochemical determination of the partial oxygen pressure in a liquid measuring medium
An apparatus for electrochemically determining the partial oxygen pressure pO 2 in a liquid measuring medium includes a measuring sensor having a working electrode and a counter-electrode. The...
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5000180 |
Polarographic-amperometric three-electrode sensor
For a potentiostatically operable, polarographic-amperometric sensor, in particular for biomedical use, wherein a working electrode (5) and a reference electrode (4) are covered by an electrolyte...
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4803991 |
Three electrode hydroquinone subcutaneous equilibrating tonometer
A closed tonometer for subcutaneous insertion is disclosed having a small closed equilibrating bath. Three noble metal electrodes, preferably platinum (Pt), communicate through electrical...
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4681116 |
Antimony electrode assembly and method of manufacture, and use thereof
An antimony electrode for pH measurement is formed with a convex, very smooth tip and sealed within a flexible plastic sheath with just the tip exposed. A reference electrode is provided either...
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4672971 |
Oxygen sensor
An oxygen sensor and method of monitoring the oxygen content of blood or other body fluids are provided, which oxygen sensor and method achieve monitoring of enhanced accuracy that is not...
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4672970 |
Electrode for living body
Disclosed is a metal electrode for a living body, which comprises a noble metal wire an an insulating covering layer formed around the periphery of the noble metal wire. At least a part of the...
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4615340 |
Sensor assembly suitable for blood gas analysis and the like and the method of use
A sensor assembly for electrochemical analysis of a substance comprises a housing and electrodes for sensing selective gases and ions within the housing. A sampler is associated with the housing...
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4534355 |
Electrochemical sensor employing a gas-permeable hydrophilic polyurethane membrane
A device for use in determining blood gas which employs a membrane of material permeable to blood gas to be determined characterized in that the membrane is hydrophilic polyurethane is described.
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4512349 |
Method of direct tissue gas tension measurement and apparatus therefor
A new method of tissue oxygen tension measurement which is suitable for human use utilizes an implanted Silastic tube which is inserted through four to five cm of subcutaneous tissue leaving the...
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4499901 |
Retreated sensing electrode
An improved sensing electrode assembly for testing for a constituent in blood is provided. An electrode assembly exhibits a decreased time to reach stable operation by virtue of having the assembly...
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4442841 |
Electrode for living bodies
An electrode for living bodies consisting of a fine metal wire at least part of the surface of which is directly coated with a porous membrane having fine pores of an average pore diameter of...
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4176659 |
Catheter with measurement electrodes
A catheter is provided which comprises a tubular body that defines a passage therewithin terminating in an axially-facing opening at the tip end of the catheter, the opening serving as a sampling...
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4148305 |
Cathode for polarographic measurements in physiological medium
A cathode for polarographic measurements in physiological medium, such as measuring oxygen partial pressure in a human or animal body, is comprised of an elongated cable having a conductive...
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3999284 |
Method for making a polarographic sensing means
A catheter system for blood gas monitoring and the method of making same comprising a polarographic sensing means having a body, first and second conductors supported by the body and each...
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3911901 |
In vivo hydrogen ion sensor
An in vivo specific ion sensor contains a specific ion electrode and a spaced apart, adjacent reference half cell which has its immobilized electrolyte adjacent to and spaced from the specific ion...
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3878830 |
Catheter system for blood gas monitoring
A catherter system for blood gas monitoring comprising a polarographic sensing means having a body, first and second conductors supported by the body and each respectively having an exposed...
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3791376 |
MICROSONDE FOR CATHETER USE, FOR THE CONTINUOUS MEASUREMENT OF PARTIAL OXYGEN PRESSURE
Microsonde for catheter use, operating under the principle of oxygen polarography, namely intended for continuous and instantaneous determination of oxygen partial pressure in blood vessels. The...
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3763850 |
DEVICE FOR MEASURING THE PARTIAL PRESSURE OF A GAS IN A FLUID
A device for measuring the partial pressure of a gas in a liquid or gaseous fluid, and more particularly, the partial pressure of oxygen in the blood comprising, a wafer having surface elements in...
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3757771 |
STERILE INSERTER APPARATUS
An apparatus for sterile insertion of a catheter or like device into an in-dwelling cannula. The catheter is sterilized after being sealed within the inserter apparatus and is retained within a...
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3682159 |
CATHETER ELECTRODE FOR OXYGEN POLAROGRAPHY
A minature electrode comprising cathode, anode, electrolyte and oxygen-permeable diaphragm, with a shell and housing adapted for secure attachment to the end of a catheter, to be introduced into...
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3528403 |
CATHETER OXYGEN ELECTRODE
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3249103 |
Method and apparatus for measuring bioelectronic parameters
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