Patents Assigned to Welch Allyn, Inc.
  • Patent number: 11607146
    Abstract: A photoplethysmography (PPG) device includes an equipment module which includes a photodetector and first and second light emitting diodes (LED's) adapted to emit light of first and second wavelengths, respectively. The PPG device also includes a mask covering the patient facing extremity of the equipment module so that when the device is applied to a patient the mask is situated between the patient and the patient facing extremity. A processor is adapted to control drive current and/or operating time of the second LED to achieve an elevated localized body tissue temperature of a patient to which the PPG device is applied.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: March 21, 2023
    Assignee: Welch Allyn, Inc.
    Inventor: Edward C. Bremer
  • Patent number: 11576617
    Abstract: This disclosure is directed towards detecting artifacts in an ECG signal. An ECG system may include multiple sensors which can sense an ECG signal when attached to a patient. Bipolar leads connect the sensors, and provide the ECG signal from the sensors to a computing device. The computing device receives respective signals from the bipolar leads, where the respective signals are indicative of the ECG signal. The computing device identifies, based on the respective signals, a potential artifact corresponding to a subset of the plurality of bipolar leads. The computing device determines that each lead of the subset of the plurality of bipolar leads is connected to a common sensor. The computing device may use signals originating from a remainder of the bipolar leads (e.g., the bipolar leads that are not connected to the sensor(s) where the artifact is detected) to detect a condition of the patient.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: February 14, 2023
    Assignee: Welch Allyn, Inc.
    Inventors: David W Mortara, Patrick J. Noffke, Reyhaneh Sepehr
  • Patent number: 11553981
    Abstract: A skin measuring microscope includes a housing, an electronic imager disposed along an imaging axis, and an illumination system. The illumination system includes a plurality of LEDs disposed in a ring-like configuration adjacent a distal end of the housing.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: January 17, 2023
    Assignee: Welch Allyn, Inc.
    Inventors: Robert J. Wood, Raymond A. Lia, Jon R. Salvati, Robert L. Vivenzio, Ian K. Edwards, Ervin Goldfain, Colin J. Wolff
  • Publication number: 20230009364
    Abstract: A method for identifying a skin abnormality including using an imaging device, the imaging device including a lighting member for directing light toward a target surface, the lighting member including a plurality of lighting elements, and a filter member positioned between the lighting member and the target surface, the filter member including a plurality of filter elements, capturing a plurality of images of the target surface, each of the plurality of images captured when illuminating a different one or more of the plurality of lighting elements, compiling the plurality of images into a data package, transmitting the data package to a server for processing the data package, and determining, at the server, a presence of an abnormality.
    Type: Application
    Filed: June 28, 2022
    Publication date: January 12, 2023
    Applicant: WELCH ALLYN, INC.
    Inventors: John Lane, Tyson B. Whitaker, Matthew J. Kinsley, Chris R. Roberts, David L. Kellner
  • Patent number: 11547291
    Abstract: A medical device includes a handle portion downwardly extending from an examination portion. The handle portion has opposing upper and lower open ends and a through cavity extending therebetween. An illumination assembly mounted within the open upper end of cavity includes a housing, at least one battery disposed within the housing, and an LED disposed at the distal end of an arm extending from the housing. The housing is mounted through the open upper end of the through cavity. According to at least one version, the at least one battery can be removed without removing the housing from the handle portion. The extending arm is supported by the examination portion and configured to provide illumination to a medical target. The medical device can include a vaginal speculum, sigmoidoscope, laryngoscope, anoscope, or other hand-held medical device.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: January 10, 2023
    Assignee: Welch Allyn, Inc.
    Inventors: Robert L. Vivenzio, Raymond A. Lia, Chris R. Roberts
  • Patent number: 11523797
    Abstract: An example monitoring device for detecting and measuring a vital sign of a subject includes: a base; a battery mounted to the base; first and second transceivers attached to the base at opposing angles, and powered by the battery to transmit pulses and receive reflected pulses; an antenna powered by the battery, and configured to wirelessly transmit data acquired from the first and second transceivers; and a computing device powered by the battery, and operatively coupled to the first and second transceivers and the antenna, the computing device having a processing device and a memory storing instructions that, when executed by the processing device, cause the monitoring device to determine a respiration rate by detecting a cyclical change in distance based on the reflected pulses.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 13, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Kenzi L. Mudge, David E. Quinn, Henry Joe Smith, III
  • Patent number: 11497447
    Abstract: Systems and methods for monitoring the condition of electrodes used in biological signal measurement are provided. One method includes applying a first test signal having a first frequency to at least one of a plurality of electrodes and applying a second test signal having a second frequency to at least one of the plurality of electrodes. Both frequencies are below a frequency range associated with the biological signal. The method further includes capturing the biological signal while applying the plurality of test signals and generating an output signal that includes both the measured biological signal and the plurality of test signals. The method further includes retrieving an output amplitude for each of the plurality of test signals from the output signal and calculating an estimated impedance for each of the plurality of electrodes based on the retrieved output amplitudes of the plurality of test signals.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: November 15, 2022
    Assignee: Welch Allyn, Inc.
    Inventor: David W. Mortara
  • Patent number: 11484274
    Abstract: A system for monitoring a patient includes an inflatable cuff configured to at least partially occlude an artery of the patient, and a sensor configured to determine a first parameter associated with the at least partially occluded artery and to generate an output signal indicative of the first parameter. The system also includes a processor configured to receive the output signal and information indicative of an occlusion efficiency of the cuff. The processor is configured to determine a hemodynamic parameter of the patient based on the output signal and the information.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: November 1, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: David E. Quinn, Matthew J. Kinsley
  • Publication number: 20220330793
    Abstract: Disclosed are medical examination or diagnostic instruments and methods of operating such instruments. The method can include coupling an instrument head to a handle to form a medical examination or diagnostic instrument; detecting by the instrument head, a characteristic of the handle; and based at least in part on detecting the characteristic of the handle, determining, by the instrument head, a handle type associated with the handle, or detecting by the handle, a characteristic of the instrument head, and based at least in part on detecting the characteristic of the instrument head, an instrument head type associated with the instrument head. In some implementations, the emission of light can be controlled to be approximately linear in relation to a user input signal, as perceived by a user.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 20, 2022
    Applicant: Welch Allyn, Inc.
    Inventors: David Matthew Babson, Kenneth V. Coon III, David Gregory Perkins, James Paul Knoop, James Stuart Ledwith
  • Patent number: 11471042
    Abstract: A vision screening apparatus includes first and second display units, a processor, and instructions which are executable by the processor. The instructions, when executed by the processor, cause the apparatus to 1) carry out a photorefraction test of a subject, 2) estimate the subject's visual acuity based on the photorefraction test, 3) present the subject with a visual acuity check optotype for an interval of time, and 4) monitor for noncompliance with a visual acuity check protocol during at least part of the time interval.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: October 18, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: William Shampine, Jennifer Bergstrom, Kathryn M. Coles, David L. Kellner, John A. Lane, Megan Schneider
  • Patent number: 11457802
    Abstract: A medical diagnostic instrument or a plurality of disparate medical diagnostic instruments are configured with a common optical architecture that functionally creates a virtual eye to create closer proximity to a patient and therefore increase the field of view in regard to a target of interest. The optical system includes a distal optical element, at least one relay lens and an eyepiece lens in which the optical system can be integrated within at least one instrument or be provided using a releasable module. Additionally, at least one of a viewing assembly and illumination assembly of at least one medical diagnostic instrument can be assembled using a series of components that are connected by interlocking features.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: October 4, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Ervin Goldfain, Raymond A. Lia
  • Patent number: 11445983
    Abstract: An example method for estimating a disease state for a patient can include: capturing physiological data including images from the patient over time; processing the physiological data to detect a variability; comparing the variability to a baseline or a range; and estimating the disease state for the patient based upon the comparing of the variability to the baseline or the limit.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: September 20, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Steven D. Baker, Chau Chong Ye, Yue Wang, Aye Aung
  • Patent number: 11406272
    Abstract: A method of determining a blood pressure of a patient includes determining a plurality of pressure pulses, wherein each pressure pulse of the plurality of pressure pulses comprises a profile having a maximum profile height. The method also includes determining a pulse score associated with the plurality of pressure pulses, wherein the pulse score is determined based on the profiles of the pressure pulses and the maximum profile heights. The method further includes determining that the pulse score is above a pulse score threshold, and generating, in response to determining that the pulse score is above the pulse score threshold, a pulse curve based on the maximum profile heights. The method also includes determining the blood pressure of the patient without completely occluding a blood vessel of the patient, wherein the blood pressure is determined based on a plurality of values corresponding to respective points on the pulse curve.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 9, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Tyson B. Whitaker, David E. Quinn, Shawn C. St. Pierre, Matthew J. Kinsley, John A. Lane, Joseph Buchanan
  • Patent number: 11406257
    Abstract: A vision screening system for testing the vision of a patient is described herein. The vision screening system may include a vision screening device configured to perform a number of vision screening tests. For example, the system may be configured to determine or generate a graphical representation for display to the patient, via the vision screening device, to evaluate the health of the patient's vision and/or detect abnormal vision behavior. The system may be configured to evaluate image/video data recorded by the vision screening device to determine measurements associated with the patient during the vision screening. The system may be configured to analyze the measurements to generate a diagnosis recommendation associated with the vision of the patient. The system may also be configured to display the recommendation and/or the measurements, along with additional screening data, to a tester conducting the vision test.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 9, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: John A. Lane, Chris R. Roberts, David L. Kellner, Eric J. Laurin, Zachary K. Boronka
  • Patent number: 11403756
    Abstract: An apparatus for producing a fundus image includes: a processor and a memory; an illumination component including a light source and operatively coupled to the processor; a camera including a lens and operatively coupled to the processor, wherein the memory stores instructions that, when executed by the processor, cause the apparatus to capture fundus images and provide controls for re-imaging the fundus.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: August 2, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Richard M. Farchione, Kristen L. Stebbins, Corrie A. Baum, Thomas A. Myers
  • Patent number: 11399709
    Abstract: An otoscopic tip element having an axisymmetric hollow body having a substantially conical shape and made from a moldable plastic material includes a distal opening, a proximal opening, an interior surface, and an exterior surface. To maximize light transmissivity, a distal portion of the interior surface is provided with a smooth or polished surface finish and a proximal portion of the interior surface and the outer surface is provided with a textured surface finish such that light from a light source of an otoscope can be axially directed through the hollow body for emission through the distal opening, as well circumferentially through the exterior surface. The surface finish and color/tint of the speculum tip element can be adjusted or tuned to promote axial, circumferential and total light output relative to an intended medical target.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: August 2, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Robert L. Vivenzio, Raymond A. Lia
  • Patent number: 11395596
    Abstract: A method for estimating blood pressure of a care recipient includes establishing a pre-maneuver reference value of blood pressure and a companion nonreference value of blood pressure, subjecting the care recipient to a maneuver, establishing a post-maneuver reference value of blood pressure and a companion post-manuever nonreference value of blood pressure, establishing an operational post-maneuver nonreference value of blood pressure, and adjusting the operational value as a function of the pre-maneuver and post-maneuver values. An associated apparatus includes a sensor, a processor and a memory which contains instructions.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: July 26, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: David E. Quinn, Matthew Banet, Marshal Dhillon, Lauren Nicole Miller Hayward
  • Patent number: D958735
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: July 26, 2022
    Assignee: WELCH ALLYN, INC.
    Inventors: David G. Perkins, Sean R. Karla, Timothy R. Fitch, David M. Villarreal, Michael Suits, Timothy Braun, Robert S. Englert
  • Patent number: D959661
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: August 2, 2022
    Assignee: Welch Allyn, Inc.
    Inventors: Robert S. Englert, Raymond A. Lia, Michael T. McMahon, David G. Perkins, Robert L. Vivenzio, Brian Perrault, Timothy R. Fitch, Alan S. Knieriem, Steven R. Slawson
  • Patent number: D962444
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: August 30, 2022
    Assignee: WELCH ALLYN, INC.
    Inventors: Carlos Suarez, Erol Ozcelik, Ynjiun Wang, Timothy R. Fitch, Thomas A. Myers