Patents by Inventor Richard A. Riedel

Richard A. Riedel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6531095
    Abstract: An analytical instrument for analyzing fluids. The instrument includes a cartridge carousel assembly which receives analytical cartridges. The cartridges are self-contained units which incorporate a sample metering/separation system which is operated by centrifugal force. The cartridge carousel is composed of a cartridge rotor plate which includes a center and a plurality of cartridge ports which are located in spaced relation radially outward from the center of the plate. The analytical instrument further includes an optical detector which measures a detectable analytical property of the fluid sample which is provided by the optical element of the cartridge. The optical detector includes a radiation source which shines a beam of radiation on the optical element. The optical detector further includes a return beam detector which measures the return beam of radiation emitted by the optical element. The radiation source and return beam detector are both located on the same side of the cartridge rotor plate.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: March 11, 2003
    Assignee: Careside, Inc.
    Inventors: Roger Hammer, David Storvick, Richard A. Riedel, James S. Hutchinson
  • Patent number: 6391264
    Abstract: The instrument includes a cartridge carousel assembly which receives analytical cartridges. The cartridges are self-contained units which incorporate a sample metering/separation system which is operated by centrifugal force. The cartridge carousel is composed of a cartridge rotor plate which includes a center and a plurality of cartridge ports which are located in spaced relation radially outward from the center of the plate. The cartridge ports include a cartridge dock which is shaped to receive the cartridges and a balance weight dock which is located radially inward from the cartridge dock. The cartridge dock is shaped to receive a balance weight. A locking mechanism is provided which holds the cartridge in the cartridge dock during rotation of the cartridge rotor plate. A balancing mechanism is provided which includes a balance weight which is movable to the balance weight dock when a cartridge is inserted into the cartridge dock.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: May 21, 2002
    Assignee: Careside, Inc.
    Inventors: Roger Hammer, William O. Reid, Jr., David Storvick, Richard A. Riedel, James S. Hutchison, Daniel Kennedy, John W. Stoughton, James J. Ramey, Glen T. Mathews
  • Patent number: 6348176
    Abstract: An analytical instrument for analyzing fluids. The instrument includes a cartridge carousel assembly which receives analytical cartridges. The analytical cartridges include a centrifugal force-operated sample metering/separation system, a pressure-operated sample transport system, and a test element which provides a detectable analytical property of a fluid sample. The cartridge carousel assembly includes a cartridge rotor plate which has a plurality of cartridge ports which receive the cartridges. A rotary drive mechanism rotates the cartridge rotor plate to provide rotation of the plate which activates the centrifugal force-operated sample metering/separation system of the cartridge. The instrument includes a sample transport actuator which activates the pressure-operated sample transport system of the cartridge. In addition, the instrument includes a detector which measures the detectable analytical property of the fluid sample after the sample metering and transport systems have been activated.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: February 19, 2002
    Assignee: Careside, Inc.
    Inventors: Roger Hammer, William Reid, David Storvick, Richard A. Riedel, James S. Hutchinson, Daniel Kennedy, Douglas E. Boyd, James Ramey, John W. Stoughton, Glen T. Mathews
  • Publication number: 20010053336
    Abstract: The instrument includes a cartridge carousel assembly which receives analytical cartridges. The cartridges are self-contained units which incorporate a sample metering/separation system which is operated by centrifugal force. The cartridge carousel is composed of a cartridge rotor plate which includes a center and a plurality of cartridge ports which are located in spaced relation radially outward from the center of the plate. The cartridge ports include a cartridge dock which is shaped to receive the cartridges and a balance weight dock which is located radially inward from the cartridge dock. The cartridge dock is shaped to receive a balance weight. A locking mechanism is provided which holds the cartridge in the cartridge dock during rotation of the cartridge rotor plate. A balancing mechanism is provided which includes a balance weight which is movable to the balance weight dock when a cartridge is inserted into the cartridge dock.
    Type: Application
    Filed: February 11, 1999
    Publication date: December 20, 2001
    Inventors: ROGER L. HAMMER, WILLIAM O. REID, DAVID STORVICK, RICHARD A. RIEDEL, JAMES S. HUTCHINSON, DANIEL KENNEDY, JAMES J. RAMEY
  • Publication number: 20010051377
    Abstract: An analytical instrument for analyzing fluids. The instrument includes a cartridge carousel assembly which receives analytical cartridges. The cartridges are self-contained units which incorporate a sample metering/separation system which is operated by centrifugal force. The cartridge carousel is composed of a cartridge rotor plate which includes a center and a plurality of cartridge ports which are located in spaced relation radially outward from the center of the plate. The analytical instrument further includes an optical detector which measures a detectable analytical property of the fluid sample which is provided by the optical element of the cartridge. The optical detector includes a radiation source which shines a beam of radiation on the optical element. The optical detector further includes a return beam detector which measures the return beam of radiation emitted by the optical element. The radiation source and return beam detector are both located on the same side of the cartridge rotor plate.
    Type: Application
    Filed: February 11, 1999
    Publication date: December 13, 2001
    Inventors: ROGER HAMMER, DAVID STORVICK, RICHARD A. RIEDEL, JAMES S. HUTCHINSON
  • Patent number: 6323495
    Abstract: A method for measuring the fluorescent lifetime of an unknown fluorescent sample, such as a biological liquid, without the requirement of manual intervention or a separate reference standard. An energetic light beam having its low energy component filtered out is shined on the sample. An optical detector is positioned such that the intensity of the components of the light beam reflected from the sample reaching the detector is substantially minimized but light remitted and/or fluoresced by the sample does reach the detector with non-trivial intensity. Errors arising from the electronic components of the system, such as RFI and D.C. offset errors, are isolated and minimized by positioning an opaque filter between the sample and the detector and measuring the resulting signal. The resulting baseline measurement data is stored for later error subtraction.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: November 27, 2001
    Assignee: UMM Electronics, Inc.
    Inventor: Richard A. Riedel
  • Patent number: 6210344
    Abstract: A method and apparatus for measuring the heart rate of a patient. In one embodiment the apparatus includes a hollow bell mounted on a diaphragm. A transducer element is also positioned therein to receive sound transmitted through the diaphragm, convert the sounds into electrical impulses, and transmit the electrical impulses to a microprocessor. The electrical impulses have real-time wave patterns corresponding to the real-time wave patterns of the original sounds. The microprocessor performs mathematical operations on wave pattern data conveyed by the electrical impulses to determine a numerical value corresponding to the frequency of the wave patterns. This numerical value is sent to a digital output and displayed thereon.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: April 3, 2001
    Assignee: UMM Electronics, Inc.
    Inventors: Dino Perin, Richard A. Riedel
  • Patent number: 6150124
    Abstract: The present invention relates to a method for passively determining the application of a sample fluid on an analyte strip using measurement of ambient light passing through the strip. Sample fluid, such as whole blood, is applied to a reagent matrix and the amount of ambient light transmitted through the matrix is periodically measured both before and after application of the sample fluid. A step increase of the transmitted light reading occurs after hydration of the strip, and the occurrence of this step increase is used to start a predetermined incubation period. At the expiration of the incubation period, another light transmission measurement is made which is indicative of an analyte concentration in the sample fluid (such as glucose concentration in a whole blood sample).
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: November 21, 2000
    Assignee: UMM Electronics, Inc.
    Inventor: Richard Riedel
  • Patent number: 6124585
    Abstract: An optical system for measuring the reflectance of flat strips having potentially optically non-uniform surfaces. In one embodiment the systems includes an array of discrete light sources, wherein each light source is driven by its own individual current, such that the pattern reflected onto a photodector is substantially uniform in intensity.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: September 26, 2000
    Assignee: UMM Electronics, Inc.
    Inventors: Richard A. Riedel, James S. Hutchison
  • Patent number: 6069011
    Abstract: A method for determining the application of a sample fluid on an analyte strip using first and second derivatives. Sample fluid, such as whole blood, is applied to a reagent matrix and sensor readings, such as reflectance readings or current readings, are taken of the fluid/reagent combination. The first and second derivatives of the sensor readings are calculated. A predetermined incubation time period is begun at either a local minimum in the first derivative or a local maximum following a local minimum in the second derivative data. At the expiration of the incubation period, another sensor reading is taken which is indicative of an analyte concentration in the sample fluid (such as glucose concentration in a whole blood sample).
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: May 30, 2000
    Assignee: UMM Electronics, Inc.
    Inventor: Richard A. Riedel
  • Patent number: 6002475
    Abstract: An analytical cartridge adapted for use in analyzing fluids for spectrophotometry. The cartridge includes a plumbing system composed of the cuvette and various wells or chambers which are interconnected by passageways. After introduction into the cartridge, liquid samples are separated (if necessary) and transported to a cuvette utilizing a sequential application of centrifugal force followed by pressurization of the system. The cartridge may be used in a wide variety of spectrophotometric procedures to measure the concentration of a wide variety of constituents in fluids, including bodily fluids which contain liquid and solid components.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: December 14, 1999
    Assignee: Careside, Inc.
    Inventors: Douglas E. Boyd, Jan B. Yates, Ronald Coleman, James Hutchison, Richard Riedel
  • Patent number: 5801817
    Abstract: A method and apparatus for eliminating the effects of varying sample distance on optical measurements. In a first embodiment, a light source and a detector are both positioned in front of a measurement sample. A light source lens assembly focuses the light such that its focal point is behind the measurement sample, while a detector lens assembly focuses the light reflected from the measurement sample such that its focal point is in front of the measurement sample. Any movement of the measurement sample away from its nominal position does not affect the detector output because the effects of the source lens assembly and the detector lens assembly cancel each other. In a second embodiment, a light source and two detectors are positioned on one side off a measurement sample. The first detector is placed at a small angle relative to the sample normal, while the second detector is placed at a relatively large angle relative to the sample normal.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 1, 1998
    Assignee: UMM Electronics Inc.
    Inventor: Richard A. Riedel
  • Patent number: 5379214
    Abstract: A method of communicating with one or more microcomputer (200) controlled instruments (10) for determining the concentration of a medically significant component of a body fluid. Each instrument (10) includes a port (220) through which instructions and data can be received from, and transmitted to, an external device. The method comprises the steps of transmitting to each instrument (10) an attention protocol for advising each instrument (10) that a further instruction is to be transmitted, transmitting one of a global address to all of such instruments (10) and an address unique to one of such instruments (10), and transmitting an instruction to all of the instruments (10) or to the above-mentioned one instrument (10).
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: January 3, 1995
    Assignee: Boehringer Mannheim Corporation
    Inventors: Steven R. Arbuckle, Michael E. Grant, Richard Riedel, Roger L. Hammer
  • Patent number: 5284770
    Abstract: A method and apparatus for verifying the operating accuracy of an instrument (10) for detecting the concentration of a medically significant component of a body fluid. The instrument (10) operates by determining the remission of a reacted chemistry contained on a substrate (106) after the chemistry has reacted with the medically significant component of the body fluid. The instrument (10) includes a radiation source (182), a radiation detector (300) and a pathway (164) from the radiation source (182) to the chemistry (106) and from the chemistry (106) to the radiation detector (300) when the substrate (106) is properly inserted into the instrument (10). The remission of the chemistry (106) determines the radiation detected by the radiation detector (300).
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: February 8, 1994
    Assignee: Boehringer Mannheim Corporation
    Inventors: Bradford C. Adrian, Joe E. Anderson, Steven R. Arbuckle, Timothy L. Beck, William R. Boyd, Prafulla D. Goradia, Michael E. Grant, Russell T. Gray, Richard Riedel, Tyrie R. Robbins, Stephen D. Scopatz, Sandra E. Sowa, John W. Stoughton, Robert C. Yates
  • Patent number: 5277870
    Abstract: A portable blood chemistry monitoring meter that employs an analog circuit in conjunction with a manually adjustable potentiometer to locate a null position that balances the measure taken of the blood chemistry-induced changes in the chemistries of disposable test strips. The meter displays in pre-printed, man-readable format blood chemistry concentrations that are individually calibrated to the specific batch-lot chemistries of the disposable test strips used with the meter. In a preferred embodiment, the meter is a blood glucose monitoring meter.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: January 11, 1994
    Assignee: United Medical Manufacturing Company
    Inventors: Maurice D. Fuller, Richard A. Riedel
  • Patent number: 5246858
    Abstract: A method and apparatus (10) for determining the remission of a chemistry (106) which reacts with a medically significant component of a body fluid. The remission of the chemistry (106) changes as it reacts. The method and apparatus (10) include irradiating the chemistry (106) with a radiation source (182), detecting remissions of radiation from the chemistry (106) with a radiation detector (300), providing a radiation pathway (164) between the source (182) and the chemistry (106), providing a remission pathway (164) between the chemistry (106) and the detector (300), and detecting the rate of change of remission of the chemistry (106) with respect to time.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: September 21, 1993
    Assignee: Boehringer Mannheim Corporation
    Inventors: Steven R. Arbuckle, William R. Boyd, Michael E. Grant, Mark A. Gregory, Russell T. Gray, Friedrich Jost, Daniel L. Kennedy, Dino Perin, Richard Riedel, David E. Storvick, John W. Stoughton
  • Patent number: 5232668
    Abstract: An instrument for analyzing test strips supporting chemistries which react with a medically significant component of a body fluid to indicate the concentration of the component in the body fluid. The instrument includes a pathway along which radiation is guided from a radiation source to a strip when the strip is inserted into the instrument and along which remission is guided from the strip to a radiation detector. A title provided on the instrument provides a first remission when no strip is inserted into the instrument. The tile is separated from the radiation source by the strip when the strip is inserted into the instrument. The first remission and the strip's remission, respectively, indicate the absence and the presence of the strip in the instrument. The strip also has a surface opposite the chemistry supporting surface characterized by a second strip remission different from the first strip remission.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: August 3, 1993
    Assignee: Boehringer Mannheim Corporation
    Inventors: Michael E. Grant, Russell T. Gray, Mark A. Gregory, Daniel L. Kennedy, Dino Perin, Richard Riedel, Stephen D. Scopatz, David E. Storvick
  • Patent number: 5174963
    Abstract: A portable blood glucose monitoring meter that employs an analog circuit in conjunction with a manually rotatable dial that varies the resistance of a potentiometer to locate a null position that balances the measure taken of the blood glucose-induced changes in the chemistries of disposable test strips. The dial supports a replaceable, pre-printed, man-readable calibration disk. The calibration disk displays in man-readable format blood glucose concentrations in milligrams per milliliter calibrated to the specific batch-lot chemistries of the disposable test strips used with the meter. A patient places a replaceable batch-lot calibration disk upon the dial, and inserts a corresponding test strip bearing a drop of capillary blood into the meter. The patient then manually adjusts the dial until prompting arrows indicate a null position. If the dial has rotated past the null position, an opposing arrow will illuminate indicating a need to rotate the dial in the opposite direction.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: December 29, 1992
    Assignee: United Medical Manufacturing Company
    Inventors: Maurice D. Fuller, Richard A. Riedel
  • Patent number: 4793104
    Abstract: A one-piece guide adapted to be inserted into mortar, between recessed surfaces presented by opposing faces of adjacent glass blocks, to space and align them with respect in each other in the formation of a masonry structure. The guide comprises a relatively thin frame including longitudinal and transverse arms having joined to their free ends bodies that are spaced transversely from said each other a distance only slightly less than the width of said recessed face surfaces.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: December 27, 1988
    Assignee: Delberg, Inc.
    Inventors: Jeffrey A. Hultberg, Richard A. Riedel
  • Patent number: 4205088
    Abstract: Pharmaceutically-acceptable compositions containing, as an active ingredient, at least one N-acylanilinobutyric acid have uses unrelated to the choleretic activity suggested in U.S. Pat. No. 3,780,095. Moreover, the further uses generally involve administration of smaller doses than would be required to obtain a choleretic effect.The new uses include: (a) increasing the gastrointestinal enzyme secretion and (b) tonicizing the cardiovascular system. The increase of the gastrointestinal enzyme secretion is applied in the treatment of different diseases, such as treatment of sprue, treatment of indigestion, treatment of acute and chronic pancreatitis, therapy for degenerated intestine mucous membrane, treatment of stomach spasms, treatment of stomach ulcers, treatment of diseases where the application of an antigastrin is indicated. The tonicising of the cardiovascular system is applied in, e.g.
    Type: Grant
    Filed: April 8, 1977
    Date of Patent: May 27, 1980
    Assignee: Byk Gulden Lomberg Chemische Fabrik GmbH
    Inventors: Wolfgang Schoetensack, Richard Riedel