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7288759 |
Tissue-like phantoms
The invention is based, in part, on the discovery that by combining certain components one can generate a tissue-like phantom that mimics any desired tissue, is simple and inexpensive to prepare,...
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7242997 |
Diffuse optical tomography system and method of use
An improved diffuse optical tomography system for in vivo non-contact imaging includes an illumination source for illuminating a specimen, a spectrum source for projecting a spectrum onto the...
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7167742 |
Utilization of an infrared probe to discriminate between materials
A method of evaluating the surface of a material that has a distinguishable infrared spectrum comprising (a) positioning an infrared fiber optic probe to be in contact with a surface of the sample...
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7018353 |
Hematocrit sampling system
Accurate measurement of hematocrit during blood recovery or plasma sequestration processes by means of algorithms to account for the presence of air or other non-blood substances in salvaged or...
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7008373 |
System and method for robot targeting under fluoroscopy based on image servoing
A system and method for image guided instrument targeting including a robot unit coupled with an instrument, an imaging unit, and a first control unit, which is coupled with the robot unit and...
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6366793 |
Minimally invasive methods for measuring analtes in vivo
Minimally invasive methods for measuring an analyte, such as glucose, contained in tile interstitial fluid of a body are provided. The methods include the steps of. (a) providing at least one...
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6241662 |
Acetic acid as a signal enhancing contrast agent in fluorescence spectroscopy
A method for using acetic acid as a signal enhancing contrast agent during fluorescence spectroscopy of normal and neoplastic tissue, particularly epithelium. In one aspect, the invention includes...
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6030841 |
Liver function test
A method for the determination of liver function, comprises the steps of: (i)introducing an effective amount of a coloured or fluorescent bile acid derivative intravenously into a patient, ...
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5173432 |
Apparatus and method for measuring the concentration or partial pressure of oxygen
A sensor and a method for using the sensor to determine the concentration or partial pressure of oxygen in a fluid media is provided. The sensor includes a light modifying medium containing a...
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5056520 |
Probe for blood gas sensing
In a blood gas sensing probe, a cylindrical sleeve contains an optical fiber. The end of the optical fiber is withdrawn into the sleeve thereby creating a receptacle at the end of the sleeve. A...
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4989606 |
Intravascular blood gas sensing system
An assembly useful in conjunction with a signal transmission means for the measurement of a compositional parameter of the blood of a patient is disclosed. This assembly comprises a housing adapted...
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4951669 |
Blood parameter measurement system
A parameter of blood is sensed with a system which includes a catheter and a sensor and a volume oscillator element. The catheter has a lumen extending therethrough, a proximal end, a distal end...
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4854321 |
Integrated optic system for monitoring blood gases
Blood gases and the like are monitored by a single probe having multiple dye wells and dyes immobilized in the wells, the dyes being exposed to the blood gases. Optical fibers and waveguides...
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4848349 |
Substance and method for measuring hepatic blood flow
The invention discloses a new class of compounds, namely fluorescently labelled bile acids, as well as processes for their production. These compounds may be used for diagonistic and research...
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4773097 |
Image analyzing apparatus
An image analyzing apparatus comprising a source of light for radiating a target object of interest, a measuring light of a first predetermined wavelength and at least one detecting light of a...
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4476870 |
Fiber optic P.sub.O.sbsb.2 probe
A fiber optic probe to be implanted in human body tissue for physiologic studies involving measurement and monitoring of the partial pressure of gaseous oxygen in the blood stream, which is...
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4449535 |
Apparatus for measuring in situ the state of oxidation-reduction of a living organ
Apparatus having application to surgical operations has an ultra-violet laser pulse generator (1), an infrared laser pulse generator (3), an optical fibre (11) which transmits these pulses in one...
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