Patents by Inventor David Wixey

David Wixey 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: 20190298398
    Abstract: Systems and methods for grasp adjustment based on grasp properties include a computer-assisted device. The device includes a two-jawed end effector located at a distal end of the device, a drive unit for operating the two-jawed end effector, and an image processing unit. The image processing unit is configured to receive imaging data of the end effector and recognize the end effector and a material grasped by the end effector in the received imaging data. The device is configured to adjust a force magnitude limit or a torque magnitude limit of the drive unit based on the received imaging data. In some embodiments, the image processing unit is further configured to determine one or more of a position, an orientation, a size, or a shape of the material based on the received imaging data. In some embodiments, at least one jaw of the end effector includes fiducial indicia.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Inventors: Ashley Lynne Wellman, David W. Weir, Matthew A. Wixey
  • Publication number: 20190200989
    Abstract: Surgical devices, systems, and related methods provide automated assessment of the status of a surgical instrument. A surgical device is configured to staple tissue via a replaceable stapler cartridge. The surgical device includes a pusher member configured to articulate the stapler cartridge to deploy staples. The surgical device includes an actuation mechanism that articulates the pusher member and a control unit configured to control operation of the actuation mechanism to attempt move the pusher member from a first position to a second position subject to an output limit for the actuation mechanism and determine an attribute of the stapler cartridge based on an amount of movement of the pusher member achieved. The determined attribute can indicate a type of the stapler cartridge selected from different stapler cartridges, whether the stapler cartridge has already been fired, or that no stapler cartridge is mounted to the surgical device.
    Type: Application
    Filed: September 8, 2017
    Publication date: July 4, 2019
    Inventors: William Burbank, Matthew A. Wixey, Nicholas Ragosta, David W. Weir, Emily Cooper, Melody Wu
  • Patent number: 9186477
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: November 17, 2015
    Assignee: FISHER & PAYKEL HEALTHCARE LIMITED
    Inventors: Peter John Hunt, Mohammad Thudor, David Wixey, Stephen William McPhee
  • Publication number: 20120118288
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Application
    Filed: June 13, 2011
    Publication date: May 17, 2012
    Applicant: FISHER & PAYKEL HEALTHCARE LIMITED
    Inventors: PETER JOHN HUNT, MOHAMMAD THUDOR, DAVID WIXEY, STEPHEN WILLIAM McPHEE
  • Patent number: 7962018
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: June 14, 2011
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Peter John Hunt, Mohammad Thudor, David Wixey, Stephen William McPhee
  • Publication number: 20090065002
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 12, 2009
    Inventors: PETER JOHN HUNT, MOHAMMAD THUDOR, DAVID WIXEY, STEPHEN WILLIAM McPHEE
  • Publication number: 20080060650
    Abstract: A patient interface is described which is reduces the pressure of the mask on the users face. The patient interface has a sealing interface having an inner sealing member and an outer sealing member. The inner and outer sealing members are adapted to seal around the facial contours of a user providing a sealed fluid communication to the user's respiratory tract. The inner and outer sealing members are at least continuously in contact with each other around the portions where the sealing interface contacts the users facial contours. The inner sealing member may be provided with cut outs to provide additional flexibility to particular areas, such as the nasal bridge, upper lip or cheek regions and may be provided with a contoured edge to better fit the facial contours of a user.
    Type: Application
    Filed: November 7, 2007
    Publication date: March 13, 2008
    Inventors: DAVID WIXEY, ALASTAIR McAULEY, CHRISTOPHER NIGHTINGALE, LEWIS GRADON, IVAN MILIVOJEVIC
  • Publication number: 20060237014
    Abstract: A breathing assistance apparatus that comprises a gas delivery device adapted to provide gas at a substantially positive mean pressure. The gas delivery device includes a communication port adapted to communicate with an external device and the device is configurable to at least two configurations. The first configuration is where the gas delivery device has a predetermined functionality in a first state. The second configuration is where the gas delivery device has a predetermined functionality in a second state. The second configuration is activated by the external device. The external device may be a mechanical key or a software key.
    Type: Application
    Filed: April 20, 2006
    Publication date: October 26, 2006
    Inventors: Ian Makinson, David Wixey
  • Publication number: 20060130836
    Abstract: The present invention may include an integral, separable or separate humidifier (100) which may be selectively configured to an inoperative or operative state. The switch over is dependent on the user or the seller having access to an actuation tool to activate the humidifier. The Continuous Positive Airway Pressure (CPAP) device is initially available for use as a standalone CPAP (100). The heater plate being isolated by a covering shroud (102), the shroud (102) also forms a connection port for the CPAP blower outlet (104). The heated humidification hardware being disabled by the absence of the activation tool. Upgrade to a CPAP device including heated humidification is completed by the installation of the actuation tool. Removal of the heater plate isolating shroud and/or installing the actuation tool enables the software controlled heated humidification hardware for heated humidifier operation. Other upgrades to functionality are also disclosed.
    Type: Application
    Filed: October 29, 2003
    Publication date: June 22, 2006
    Inventors: David Wixey, Ian Makinson
  • Publication number: 20050257792
    Abstract: A patient interface is described which is reduces the pressure of the mask on the users face. The patient interface has a sealing interface having an inner sealing member and an outer sealing member. The inner and outer sealing members are adapted to seal around the facial contours of a user providing a sealed fluid communication to the user's respiratory tract. The inner and outer sealing members are at least continuously in contact with each other around the portions where the sealing interface contacts the user's facial contours. The inner sealing member may be provided with cut outs to provide additional flexibility to particular areas, such as the nasal bridge, upper lip or cheek regions and may be provided with a contoured edge to better fit the facial contours of a user.
    Type: Application
    Filed: July 11, 2003
    Publication date: November 24, 2005
    Inventors: David Wixey, Alastair McAuley, Christopher Nightingale, Lewis Gradon, Ivan Milivojevic
  • Publication number: 20040221844
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which determines the flow rate of the gases and then determines the required power input to the humidifier to deliver the gases to the patient at the required patient humidity. This means the need for external sensors is dispensed with and thus the apparatus is simple and less bulky.
    Type: Application
    Filed: November 17, 2003
    Publication date: November 11, 2004
    Inventors: Peter John Hunt, Mohammad Thudor, David Wixey, Stephen William McPhee
  • Patent number: 6520021
    Abstract: A connector is formed to connect with the outlet of a humidification chamber. A calibrated tube extends through the connector to be retained in use in at least a substantially vertical direction. A bias flow outlet also extends through the connector. In use the connector of the measuring device is fitted to the outer port of a humidification water chamber with the calibrated tube extending into the reservoir of water within the chamber. With an air supply to the chamber activated the subsequent water level in the tube indicates the operating pressure of the blower under a flow condition simulating losses through leakage in the breathing circuit and at the patient connection.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: February 18, 2003
    Assignee: Fisher & Paykel Limited
    Inventors: David Wixey, Yann Ren Breton, Patrick Sean McSweeny
  • Patent number: 6398197
    Abstract: A water chamber has a horizontally orientated gas inlet with an elongate flow tube extending into the water chamber from the inner periphery of the gases inlet. An inlet end of the elongate flow tube covers the inlet and an outlet end of the flow tube is spaced from the wall of the chamber. In use the flow tube receives gases supplied to the gases inlet, the gases pass through the flow tube and exit the flow tube at the outlet end distant from the wall.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 4, 2002
    Assignee: Fisher & Paykel Limited
    Inventors: Philip John Dickinson, David Wixey