Patents by Inventor Varad N. Srivastava

Varad N. Srivastava 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).

  • Publication number: 20230298740
    Abstract: High-accuracy locating systems and methods are used for determining successful caregiver rounding, monitoring whether housekeepers have properly cleaned patient beds, or determining whether patients have ambulated sufficient distances during recovery. Patient beds having at least two locating tags are used for establishing patient care zones around the patient beds. Locating anchors and equipment tags are moved around a patient room to determine optimum locating anchor placement within the patient room based on signal quality values. A locating tag on a patient bed switches roles to operate as a locating anchor in response to the patient bed becoming stationary. A locating tag has a digital compass which is used to determine a field of good ranging relative to a front of a caregiver wearing the locating tag.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Inventors: Timothy J. Receveur, Frederick Collin Davidson, Stephen R. Embree, Britten J. Pipher, Eric D. Agdeppa, Steven D. Baker, Bradley T. Smith, Pamela Wells, Laura A. Hassey, Kiana M. Dezelon, Thomas A. Myers, Andrew S. Robinson, Varad N. Srivastava, Douglas A. Seim, Kenzi L. Mudge, Jennifer A. Gunn, John S. Schroder, Brandon Smith, Tanya M. Hawthorne, Elizabeth A. Kowal
  • Patent number: 11699517
    Abstract: High-accuracy locating systems and methods are used for determining successful caregiver rounding, monitoring whether housekeepers have properly cleaned patient beds, or determining whether patients have ambulated sufficient distances during recovery. Patient beds having at least two locating tags are used for establishing patient care zones around the patient beds. Locating anchors and equipment tags are moved around a patient room to determine optimum locating anchor placement within the patient room based on signal quality values. A locating tag on a patient bed switches roles to operate as a locating anchor in response to the patient bed becoming stationary. A locating tag has a digital compass which is used to determine a field of good ranging relative to a front of a caregiver wearing the locating tag.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: July 11, 2023
    Assignee: Hill-Rom Services, Inc.
    Inventors: Timothy J. Receveur, Frederick Collin Davidson, Stephen R. Embree, Britten J. Pipher, Eric D. Agdeppa, Steven D. Baker, Bradley T. Smith, Pamela Wells, Laura A. Hassey, Kiana M. Dezelon, Thomas A. Myers, Andrew S. Robinson, Varad N. Srivastava, Douglas A. Seim, Kenzi L. Mudge, Jennifer A. Gunn, John S. Schroder, Brandon Smith, Tanya M. Hawthorne, Elizabeth A. Kowal
  • Patent number: 11583437
    Abstract: A warming device may include a batting layer having a phase change material. The batting layer may have a patient side and an upper side. A hot melt fabric adhesive may be applied to the patient side and upper side of the batting. A first fabric layer may be adhered to the hot melt fabric on the patient side of the batting. The first fabric layer may have a phase change material integrated coating. An insulation layer may be adhered to the hot melt fabric on the upper side of the batting. A second fabric layer may be coupled to the insulation layer.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: February 21, 2023
    Assignee: Aspen Surgical Products, Inc.
    Inventors: Michael S. Hood, Charles A. Lachenbruch, David L. Bedel, Robert J. Lawrence, Darrell L. Borgman, Varad N. Srivastava, Neal Wiggermann, Kirsten M. Emmons, Frank E. Sauser, Holly L. Bengel, Logan Cobler, Kayla Stevens, Justine Pringle, Ryan S. Severns, Yongji Fu
  • Patent number: 11559421
    Abstract: A protective dressing includes an outer dressing and an adhesive layer. The outer dressing includes an opening and a cavity sized to receive a phase-change material (PCM) insert inserted through the opening. The adhesive layer is configured to adhere to a patient's skin surrounding an anatomic site. When adhered to the patient's skin, the PCM insert modifies the patient's skin at the anatomic site. The PCM insert may be removed and replaced with another PCM insert. For example, a warm PCM insert may be replaced with a refrigerated PCM insert. The opening of the outer dressing may be self-sealing. The opening of the outer dressing may be sealed with an upper layer dressing coupled to the PCM cooling insert.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 24, 2023
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A Lachenbruch, Eric D Agdeppa, David L Ribble, Rachel L Williamson, Yongfeng Li, Chris Hill, Catherine A Vangilder, Jeffrey C Marrion, David C Newkirk, Robert J Lawrence, Craig M Meyerson, Roger P Bonenfant, John V Harmeyer, Steven D Baker, Todd P O'Neal, Ben Hertz, Murray M Swoish, Varad N Srivastava, David L Bedel
  • Publication number: 20210065885
    Abstract: High-accuracy locating systems and methods are used for determining successful caregiver rounding, monitoring whether housekeepers have properly cleaned patient beds, or determining whether patients have ambulated sufficient distances during recovery. Patient beds having at least two locating tags are used for establishing patient care zones around the patient beds. Locating anchors and equipment tags are moved around a patient room to determine optimum locating anchor placement within the patient room based on signal quality values. A locating tag on a patient bed switches roles to operate as a locating anchor in response to the patient bed becoming stationary. A locating tag has a digital compass which is used to determine a field of good ranging relative to a front of a caregiver wearing the locating tag.
    Type: Application
    Filed: July 31, 2020
    Publication date: March 4, 2021
    Inventors: Timothy J. Receveur, Frederick Collin Davidson, Stephen R. Embree, Britten J. Pipher, Eric D. Agdeppa, Steven D. Baker, Bradley T. Smith, Pamela Wells, Laura A. Hassey, Kiana M. Dezelon, Thomas A. Myers, Andrew S. Robinson, Varad N. Srivastava, Douglas A. Seim, Kenzi L. Mudge, Jennifer A. Gunn, John S. Schroder, Brandon Smith, Tanya M. Hawthorne, Elizabeth A. Kowal
  • Publication number: 20200360207
    Abstract: A sleep apparatus, such as a mattress, comprises a head support surface sized to support a person's head, and a torso support surface sized to support a person's torso. The head support surface is generally laterally sloped moving from a first side toward a second side of the mattress, and the torso support surface is generally laterally sloped moving from the first side toward the second side. In some embodiments, the lateral slope of the head support surface is at least about 15°, the lateral slope of the head support surface is greater than the lateral slope of the torso support surface, and/or, the sleep apparatus slopes in the longitudinal direction as well.
    Type: Application
    Filed: July 31, 2020
    Publication date: November 19, 2020
    Inventors: Michael Scott Hood, David L. Ribble, Laetitia Gazagnes, Pierre Deguignet, Aziz A. Bhai, Eric D. Agdeppa, Neal Wiggermann, Charles A. Howell, Varad N. Srivastava, Jason A. Penninger
  • Patent number: 10734110
    Abstract: A caregiver badge system includes a caregiver badge configured to be worn by a caregiver and having a cavity defined therein. An identification badge is configured to be positioned within the cavity. The identification badge is removable from the caregiver badge. A transceiver is positioned within the caregiver badge and configured to communicate with a positioning system to identify a location of the caregiver. A battery is positioned within the caregiver badge to power the transceiver.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 4, 2020
    Assignee: Hill-Rom Services, Inc.
    Inventors: Bradley T. Smith, Andrew S. Robinson, Steven D. Baker, Pamela Wells, John S. Schroder, Kiana M. Dezelon, Laura A. Hassey, Thomas A. Myers, Eric D. Agdeppa, Varad N. Srivastava
  • Publication number: 20200185087
    Abstract: A caregiver badge system includes a caregiver badge configured to be worn by a caregiver and having a cavity defined therein. An identification badge is configured to be positioned within the cavity. The identification badge is removable from the caregiver badge. A transceiver is positioned within the caregiver badge and configured to communicate with a positioning system to identify a location of the caregiver. A battery is positioned within the caregiver badge to power the transceiver.
    Type: Application
    Filed: November 8, 2019
    Publication date: June 11, 2020
    Inventors: Bradley T. Smith, Andrew S. Robinson, Steven D. Baker, Pamela Wells, John S. Schroder, Kiana M. Dezelon, Laura A. Hassey, Thomas A. Myers, Eric D. Agdeppa, Varad N. Srivastava
  • Patent number: 10646379
    Abstract: One embodiment of a method of interrogating a sensor to detect the presence of moisture on an occupant support comprises the steps of A) providing a moisture responsive sensor in a surveillance zone of the occupant support, the sensor being tuned to a center frequency; B) exciting the sensor with an electromagnetic signal having a frequency approximately equal to the center frequency; C) monitoring for a center frequency response from the sensor; D) comparing the center frequency response to an expected center frequency response; and E) if the center frequency response compares favorably to an expected center frequency response, issuing a first output consistent with the favorable comparison.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: May 12, 2020
    Assignee: Hill-Rom Services, Inc.
    Inventors: Thomas F. Heil, Steven A. Dixon, Laetitia Gazagnes, Timothy A. Lane, David L. Ribble, Varad N. Srivastava
  • Publication number: 20190240066
    Abstract: A warming device may include a batting layer having a phase change material. The batting layer may have a patient side and an upper side. A hot melt fabric adhesive may be applied to the patient side and upper side of the batting. A first fabric layer may be adhered to the hot melt fabric on the patient side of the batting. The first fabric layer may have a phase change material integrated coating. An insulation layer may be adhered to the hot melt fabric on the upper side of the batting. A second fabric layer may be coupled to the insulation layer.
    Type: Application
    Filed: January 28, 2019
    Publication date: August 8, 2019
    Inventors: Michael S. HOOD, Charles A. LACHENBRUCH, David L. BEDEL, Robert J. LAWRENCE, Darrell L. BORGMAN, Varad N. SRIVASTAVA, Neal WIGGERMANN, Kirsten M. EMMONS, Frank E. SAUSER, Holly L. BENGEL, Logan COBLER, Kayla STEVENS, Justine PRINGLE, Ryan S. SEVERNS, Yongji FU
  • Publication number: 20180116879
    Abstract: A disposable incontinence detection system monitors an area for incontinence events. The incontinence detection system includes a substrate having a length and a width defining a monitoring area. Additionally, the incontinence detection system includes a moisture sensor positioned within the monitoring area. The moisture sensor includes a circuit that includes traces spaced apart from each other such that the presence of moisture bridging a space between at least two of the traces will close the circuit. Additionally, the circuit includes a removable conductor coupled to one of the traces such that removal of the conductor irreversibly prevents the trace from closing the circuit. The moisture sensor is configured to determine whether the circuit has been closed.
    Type: Application
    Filed: October 20, 2017
    Publication date: May 3, 2018
    Inventors: Joshua A. Williams, Neal Wiggermann, Yongji Fu, Varad N. Srivastava
  • Publication number: 20160374626
    Abstract: One embodiment of a method of interrogating a sensor to detect the presence of moisture on an occupant support comprises the steps of A) providing a moisture responsive sensor in a surveillance zone of the occupant support, the sensor being tuned to a center frequency; B) exciting the sensor with an electromagnetic signal having a frequency approximately equal to the center frequency; C) monitoring for a center frequency response from the sensor; D) comparing the center frequency response to an expected center frequency response; and E) if the center frequency response compares favorably to an expected center frequency response, issuing a first output consistent with the favorable comparison.
    Type: Application
    Filed: September 6, 2016
    Publication date: December 29, 2016
    Inventors: Thomas F. Heil, Steven A. Dixon, Laetitia Gazagnes, Timothy A. Lane, David L. Ribble, Varad N. Srivastava
  • Publication number: 20160374847
    Abstract: A protective dressing includes an outer dressing and an adhesive layer. The outer dressing includes an opening and a cavity sized to receive a phase-change material (PCM) insert inserted through the opening. The adhesive layer is configured to adhere to a patient's skin surrounding an anatomic site. When adhered to the patient's skin, the PCM insert modifies the patient's skin at the anatomic site. The PCM insert may be removed and replaced with another PCM insert. For example, a warm PCM insert may be replaced with a refrigerated PCM insert. The opening of the outer dressing may be self-sealing. The opening of the outer dressing may be sealed with an upper layer dressing coupled to the PCM cooling insert.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 29, 2016
    Inventors: Charles A. Lachenbruch, Eric D. Agdeppa, David L. Ribble, Rachel L. Williamson, Yongfeng Li, Chris Hill, Catherine A. Vangilder, Jeffrey C. Marrion, David C. Newkirk, Robert J. Lawrence, Craig M. Meyerson, Roger P. Bonenfant, John V. Harmeyer, Steven D. Baker, Todd P. O'Neal, Ben Hertz, Murray M. Swoish, Varad N. Srivastava, David L. Bedel
  • Publication number: 20150136146
    Abstract: A method comprises determining a person's level of risk for developing an adverse condition; selecting a care protocol based on the level of risk; displaying a proposed configuration of a person support structure corresponding to the care protocol for a caregiver to approve; and upon approval by the caregiver, implementing the configuration.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 21, 2015
    Applicant: HILL-ROM SERVICES, INC.
    Inventors: Michael Scott Hood, David L. Ribble, Laetitia Gazagnes, Pierre Deguignet, Aziz A. Bhai, Eric D. Agdeppa, Neal Wiggermann, Charles A. Howell, Varad N. Srivastava, Jason A. Penninger
  • Publication number: 20140276504
    Abstract: One embodiment of a method of interrogating a sensor to detect the presence of moisture on an occupant support comprises the steps of A) providing a moisture responsive sensor in a surveillance zone of the occupant support, the sensor being tuned to a center frequency; B) exciting the sensor with an electromagnetic signal having a frequency approximately equal to the center frequency; C) monitoring for a center frequency response from the sensor; D) comparing the center frequency response to an expected center frequency response; and E) if the center frequency response compares favorably to an expected center frequency response, issuing a first output consistent with the favorable comparison.
    Type: Application
    Filed: February 21, 2014
    Publication date: September 18, 2014
    Applicant: Hill-Rom Services, Inc.
    Inventors: Thomas F. Heil, Steven A. Dixon, Laetitia Gazagnes, Timothy A. Lane, II, David L. Ribble, Varad N. Srivastava
  • Publication number: 20140153702
    Abstract: An imaging system comprises a presence sensing subsystem responsive to presence and absence of a subject, a controller comprising a processor, configured to a) receive information representative of the presence and absence of the subject from the presence sensing subsystem, and to b) produce an output related to a site of interest, and an imaging subsystem responsive to the output such that the imaging subsystem targets the site of interest.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Inventor: Varad N. Srivastava
  • Publication number: 20130253950
    Abstract: A patient support apparatus includes a microphone and a controller. The microphone is configured to record a patient's verbal acknowledgement of his identity and generate a first input signal in response to the patient's verbal acknowledgement.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 26, 2013
    Applicant: Hill-Rom Services, Inc.
    Inventors: Irvin J. VANDERPOHL, III, Varad N. Srivastava, Steven A. Dixon
  • Publication number: 20110118594
    Abstract: A system (10) and method for targeting a geometric feature (12) in a medical implant (14) located in a patient (16), such as a transverse bore (12) in an intramedullary nail (14) implanted in a femur (18) of a patient (16). The system (10) includes one or more emitters (20), one or more receptors (22), and a processor (24). The emitter(s) emits at least one of an acoustic field, a magnetic field, an electric field, or an electromagnetic field that will be altered by the geometric feature (12), and the receptor(s) (22) detects the altered field and generates a signal (26) responsive to the altered field. The processor receives the signal and generates a representation of the altered field.
    Type: Application
    Filed: August 19, 2009
    Publication date: May 19, 2011
    Inventors: Varad N. Srivastava, James J. Foskett, Michael G. Schneider, Dan Pickerill, Abtin Spantman
  • Publication number: 20090227911
    Abstract: An active-passive rehabilitation device is disclosed providing natural and relatively unconstrained motion of the treated joint, which promotes drainage and mitigates edema in the extrema. This active-passive rehabilitation device enables the application of adjunctive therapeutic modalities such as cryotherapy units and pneumatic sequential compression devices. Electronic controls allow the active-passive rehabilitation device to be programmed to provide resistive load for Active Range of Motion or Active Resistive Range of Motion (AROM or ARROM) for prescribed therapeutic cycles. Speed, range of motion and therapeutic torque limitations are some of the parameters that may be user controlled and/or programmable. Historical data can be stored in the device and can be downloaded electronically in real-time or at discrete intervals, allowing caretakers to monitor progress and even modify load cycles via electronic communication means.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 10, 2009
    Inventors: Varad N. Srivastava, James J. Foskett, Michael G. Schneider, John M. Hahn, Greg P. Crowley, Jerome K. Aarestad