Patents by Inventor Rachel Williamson

Rachel Williamson 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: 20190053707
    Abstract: A subject monitoring system operates to detect a current status of a subject in a subject arrangement area, such as on a bed, and predict an upcoming status of the subject. The system includes a subject status detection device that may use a radar signal. A radar signal is transmitted toward the subject and is used to detect a subject status, such as a subject position, a subject incontinence condition, and a physiological condition of the subject. One example of the radar signal includes a millimeter wave.
    Type: Application
    Filed: August 17, 2017
    Publication date: February 21, 2019
    Inventors: John A. Lane, Steven D. Baker, Rachel Williamson
  • Publication number: 20180214091
    Abstract: A patient monitoring system includes sensors, a patient support assembly, and a gateway device and/or control module. Example sensors include physiological sensors and patient status devices. The sensors acquire patient-related data. Patient related action is determined based on the patient-related data.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 2, 2018
    Inventors: Steven D. Baker, Rachel Williamson, Samuel Lai, Kristen L. Stebbins, Philippe Kaikenger, Catherine King, Leigh Scott Coleman II, Alisa Robinson Salibra, Todd Ventrola, Dan R. Tallent
  • Patent number: 10010446
    Abstract: A cooling system for an occupant of an occupant support comprises a coolant conduit having an inlet for receiving coolant and an outlet for discharging the coolant to a destination. The conduit is nonpermanently and manually shape adjustable, shape stable subsequent to adjustment, and removably securable to the occupant support, the occupant or both. In one embodiment the destination is an ambient environment selected to achieve targeted coolant delivery to a localized region of the occupant's body. A cooling glove to be worn by a user has at least one coolant intake and at least one of a) a coolant passage extending from the coolant intake to an exhaust opening which exhausts coolant to an ambient environment; and b) a cooperative relationship with the user which defines a fluid pathway bounded in part by the glove and in part by the user and which discharges coolant to an ambient environment.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: July 3, 2018
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A Lachenbruch, Andrew Kerr, Christopher R O'Keefe, Timothy J Receveur, Rachel Williamson
  • Patent number: 9907718
    Abstract: A nonintegrated mattress topper comprises a cover at least part of which comprises a fabric having a variable vapor transfer property. When the fabric temperature is within a first range consistent with the presence of an occupant on the mattress the fabric exhibits a first vapor transfer rate sufficiently high that the fabric is permeable to vapor transport across the fabric, and when the fabric temperature is lower than the first temperature range and consistent with the absence of an occupant the fabric exhibits a second vapor transfer rate lower than that of the first vapor transfer rate. Also disclosed is an occupant support assembly comprising a mattress and a nonintegrated topper having the variable vapor transfer property. Also disclosed is an occupant support system comprising a mattress and an integrated topper at least part of which is made of a fabric having the temperature dependent vapor permeability.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 6, 2018
    Assignee: Hill-Rom Services, Inc.
    Inventors: Michelle E. Weitzel, Rachel Williamson
  • Publication number: 20180000633
    Abstract: A method for monitoring an environment for a patient on a patient support device can include: receiving a temperature reading from a wireless sensor coupled to a body of the patient; comparing the temperature reading to air flowing through an airflow system associated with the patient support device; and modifying the air flowing through the airflow system.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 4, 2018
    Inventors: Leigh Scott Coleman, II, Philippe Kaikenger, Catherine King, Samuel Lai, Alisa Robinson Salibra, Kristen L. Stebbins, Dan R. Tallent, Todd Ventrola, Rachel Williamson
  • Publication number: 20170246062
    Abstract: A method for detecting occupant position change on a support surface includes establishing a rate of change of pressure in a head end test zone and in a foot end test zone, comparing the head end rate to at least one head end rate limit, comparing the foot end rate to at least one foot end rate limit, and inferring, in response to the comparing steps, whether or not occupant migration has occurred. An associated occupant support includes a frame and a mattress. The mattress includes head and foot zones each having at least one pressurizable bladder. The support also includes a controller adapted to compare a head end rate of pressure change to a head end rate limit, to compare a foot end rate of pressure change to a foot end rate limit, and to infer, in response to the comparing steps, whether or not occupant migration has occurred.
    Type: Application
    Filed: May 17, 2017
    Publication date: August 31, 2017
    Inventors: Christopher R. O'KEEFE, Timothy J. RECEVEUR, Aziz A. BHAI, Luke GIBSON, Charles A. LACHENBRUCH, Rachel WILLIAMSON
  • Patent number: 9707142
    Abstract: A method of positioning an occupant (98) of a bed includes identifying (204) the presence of a discrepancy between an existing occupant position and a target occupant position, and establishing (206) an elevation gradient having a direction, magnitude and position compatible with moving the occupant from the existing occupant position to the target position. In one variant of the method the step of establishing an elevation gradient is one substep of a preordained sequence of bladder inflations and deflations. In another variant, the method includes determining (210) if the discrepancy has been corrected and responding to any noncorrection of the discrepancy. An associated bed (20) includes a mattress (82) at least one layer (100) of repositioning bladders (102, 104, 106, 108) a sensor array (130) a controller (140) and a pump (142).
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: July 18, 2017
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A. Lachenbruch, Rachel Williamson
  • Patent number: 9655795
    Abstract: A method for detecting occupant position change on a support surface includes establishing a rate of change of pressure in a head end test zone and in a foot end test zone, comparing the head end rate to at least one head end rate limit, comparing the foot end rate to at least one foot end rate limit, and inferring, in response to the comparing steps, whether or not occupant migration has occurred. An associated occupant support includes a frame and a mattress. The mattress includes head and foot zones each having at least one pressurizable bladder. The support also includes a controller adapted to compare a head end rate of pressure change to a head end rate limit, to compare a foot end rate of pressure change to a foot end rate limit, and to infer, in response to the comparing steps, whether or not occupant migration has occurred.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: May 23, 2017
    Assignee: Hill-Rom Services, Inc.
    Inventors: Christopher R O'Keefe, Timothy Joseph Receveur, Aziz Bhai, Luke Gibson, Charles A Lachenbruch, Rachel Williamson
  • Patent number: 9572433
    Abstract: A system for directing fluid flow in a mattress is disclosed. The mattress comprises a base support layer which is configured to spatially locate at least one insert support layer. The insert layer comprises a conduit to allow fluid flow.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 21, 2017
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A. Lachenbruch, Christopher R. O'Keefe, Rachel Williamson, Timothy J. Receveur
  • Patent number: 9131780
    Abstract: A bed comprises a mattress and a topper resting atop the mattress and extending in longitudinal and lateral directions. The topper has a fluid flowpath having an inlet and an outlet. The flowpath exhibits a nonuniform resistance to fluid flow in at least one of the longitudinal and lateral directions. The bed also includes a blower connected to the inlet for supplying air to the flowpath. The resistance may be a monotonically varying resistance to fluid flow in at least one of the longitudinal and lateral directions and configured to preferentially drive fluid flow through the topper so that a larger proportion of the fluid flowing through the topper flows under a target region and a relatively smaller portion bypasses the target region.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: September 15, 2015
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A. Lachenbruch, Rachel Williamson, Timothy Joseph Receveur, Christopher R. O'Keefe
  • Publication number: 20140196216
    Abstract: A nonintegrated mattress topper comprises a cover at least part of which comprises a fabric having a variable vapor transfer property. When the fabric temperature is within a first range consistent with the presence of an occupant on the mattress the fabric exhibits a first vapor transfer rate sufficiently high that the fabric is permeable to vapor transport across the fabric, and when the fabric temperature is lower than the first temperature range and consistent with the absence of an occupant the fabric exhibits a second vapor transfer rate lower than that of the first vapor transfer rate. Also disclosed is an occupant support assembly comprising a mattress and a nonintegrated topper having the variable vapor transfer property. Also disclosed is an occupant support system comprising a mattress and an integrated topper at least part of which is made of a fabric having the temperature dependent vapor permeability.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 17, 2014
    Applicant: Hill-Rom Services, Inc.
    Inventors: Michelle E. Weitzel, Rachel Williamson
  • Patent number: 8732876
    Abstract: A person-support apparatus comprises a frame, a deck, and an upper body support assembly. The deck is coupled to the frame and configured to support a person. The deck includes a first section and a second section. The first section is configured to pivot between a first angular orientation and a second angular orientation with respect to the frame. The person is in a supine position when the first section is in the first angular orientation and is moved to a sitting position when the first section is moved to the second angular orientation. The upper body support assembly is movably coupled to the frame and includes a torso support. The torso support is configured to support a portion of the person's torso when the person is in a forward-leaning posture in the sitting position.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: May 27, 2014
    Assignee: Hill-Rom Services, Inc.
    Inventors: Charles A. Lachenbruch, Christopher R. O'Keefe, Rachel Williamson
  • Publication number: 20140047646
    Abstract: A system for directing fluid flow in a mattress is disclosed. The mattress comprises a base support layer which is configured to spatially locate at least one insert support layer. The insert layer comprises a conduit to allow fluid flow.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 20, 2014
    Inventors: Charles A. Lachenbruch, Christopher R. O'Keefe, Rachel Williamson, Timothy J. Receveur
  • Publication number: 20130263378
    Abstract: A method for detecting occupant position change on a support surface includes establishing a rate of change of pressure in a head end test zone and in a foot end test zone, comparing the head end rate to at least one head end rate limit, comparing the foot end rate to at least one foot end rate limit, and inferring, in response to the comparing steps, whether or not occupant migration has occurred. An associated occupant support includes a frame and a mattress. The mattress includes head and foot zones each having at least one pressurizable bladder. The support also includes a controller adapted to compare a head end rate of pressure change to a head end rate limit, to compare a foot end rate of pressure change to a foot end rate limit, and to infer, in response to the comparing steps, whether or not occupant migration has occurred.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 10, 2013
    Inventors: Christopher R. O'Keefe, Timothy Joseph Receveur, Aziz Bhai, Luke Gibson, Charles A. Lachenbruch, Rachel Williamson
  • Publication number: 20130212808
    Abstract: A topper (38) for a bed extends in longitudinal and lateral directions and includes a fluid flowpath (60) for channeling fluid through the topper from an inlet (62) to an outlet (64). The flowpath is configured to distribute the fluid to a preferred target region (50) of the topper. A bed which includes the topper has a blower (72) connected to the topper inlet for supplying air (88) to the flowpath.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 22, 2013
    Inventors: Charles A. Lachenbruch, Rachel Williamson, Timothy Joseph Receveur, Christopher R. O'Keefe
  • Publication number: 20130205506
    Abstract: A bed comprises a mattress and a topper resting atop the mattress and extending in longitudinal and lateral directions. The topper has a fluid flowpath having an inlet and an outlet. The flowpath exhibits a nonuniform resistance to fluid flow in at least one of the longitudinal and lateral directions. The bed also includes a blower connected to the inlet for supplying air to the flowpath. The resistance may be a monotonically varying resistance to fluid flow in at least one of the longitudinal and lateral directions and configured to preferentially drive fluid flow through the topper so that a larger proportion of the fluid flowing through the topper flows under a target region and a relatively smaller portion bypasses the target region.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 15, 2013
    Inventors: Charles A. Lachenbruch, Rachel Williamson, Timothy Joseph Receveur, Christopher R. O'Keefe
  • Publication number: 20130074272
    Abstract: An occupant support (20) includes an intermediate layer (26, 30, 120) and a wicking layer (52) atop the intermediate layer. The wicking layer comprises a first region (62) having a lower moisture wick rate (W1) and a second region (64) having a higher wick rate (W2). A moisture management cover (52) for use with an occupant support article has discrete higher (64) and lower (62) wick rate regions. A related method for transporting moisture away from a target region of an occupant support comprises distributing the moisture over an area beyond area A and exposing the distributed moisture to a fluid stream capable of receiving the moisture.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Inventors: Charles A. Lachenbruch, Christopher R. O'Keefe, Timothy J. Receveur, Rachel Williamson
  • Publication number: 20130046216
    Abstract: The disclosure provides a system for DVT prevention and therapy coupled to a person support surface of a person-support apparatus. In one embodiment the system can include at least one bladder, a controller, a fluid supply unit and a valve assembly in one embodiment. The at least one bladder can be configured to provide percussion therapy or sequential compression to the lower limbs of the person supported on the person-support apparatus. The fluid supply unit can be configured to supply fluid to the at least one bladder via the valve assembly. The controller can control the opening and closing of the valve assembly depending on the pressure inside the at least one bladder. In another embodiment, the system for DVT prevention and therapy uses mechanical actuation devices to provide a mechanical stimulus to the patient's limb.
    Type: Application
    Filed: August 19, 2011
    Publication date: February 21, 2013
    Inventors: Christopher R. O'Keefe, David Ribble, Rachel Williamson, Timothy J. Receveur, Jason Amrhein, Jason Penninger
  • Publication number: 20130014324
    Abstract: A care delivery system includes a bed (20) having a bed-side interface unit (B), an appliance set (90) comprising one or more appliances (99) and two or more appliance-side interface units (A) distributed among the appliances, and a set (124) of one or more adaptors (126) each having a host interface unit (H) compatible with the bed-side interface unit, and a client interface unit (C). Each adaptor is arranged to accommodate fluid flow between its host interface unit and its client interface unit. Each client interface unit of the adaptor set, taken individually, is compatible with at least one but fewer than all of the appliance-side interface units of the appliance set and, taken collectively, are compatible with all of the appliance-side interface units of the appliance set. The system also includes an appliance annunciator (140) and an appliance discriminator (76) responsive to the annunciator thereby configuring the system for the pneumatic demands of the appliance.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 17, 2013
    Inventors: Timothy Joseph Receveur, David Ribble, Jason Amrhein, Christopher R. O'Keefe, Rachel Williamson
  • Publication number: 20120222214
    Abstract: A method of positioning an occupant (98) of a bed includes identifying (204) the presence of a discrepancy between an existing occupant position and a target occupant position, and establishing (206) an elevation gradient having a direction, magnitude and position compatible with moving the occupant from the existing occupant position to the target position. In one variant of the method the step of establishing an elevation gradient is one substep of a preordained sequence of bladder inflations and deflations. In another variant, the method includes determining (210) if the discrepancy has been corrected and responding to any noncorrection of the discrepancy. An associated bed (20) includes a mattress (82) at least one layer (100) of repositioning bladders (102, 104, 106, 108) a sensor array (130) a controller (140) and a pump (142).
    Type: Application
    Filed: March 3, 2011
    Publication date: September 6, 2012
    Inventors: Charles A. Lachenbruch, Rachel Williamson