Patents by Inventor Bret Hamatake

Bret Hamatake 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: 20190374162
    Abstract: A catheter assembly or other elongate tubular device for use in establishing vascular or other access within the body of a patient is disclosed. The catheter assembly is equipped with one or more sensors that enable monitoring of one or more physiological aspects of the patient or physical aspect of the catheter assembly itself when the catheter assembly is disposed within the patient. Such aspects include central venous pressure, body temperature, ECG heart signals, oxygen levels, ultrasound data, glucose, etc. The catheter assembly includes the ability to wirelessly transmit or otherwise forward data relating to the detected physiological parameters to another location, such as a patient electronic medical record, smartphone or other mobile device, nurse station, etc. Catheter assemblies configured to detect the frequency of catheter flushing, flushing quality, etc., are also disclosed.
    Type: Application
    Filed: August 22, 2019
    Publication date: December 12, 2019
    Inventors: Gidon Ofek, Blake Allen, Todd P. McFarland, Samuel A. Francis, Bret Hamatake
  • Patent number: 10463845
    Abstract: A low-profile access port for subcutaneous implantation within the body of a patient is disclosed. The access port includes a receiving cup that provides a relatively large subcutaneous target to enable a catheter-bearing needle to access the port without difficulty. In addition, the access port includes a valve/seal assembly to permit pressurized fluid injection through the port while preventing backflow. In one embodiment, therefore, a low-profile access port comprises a body including a conduit with an inlet port at a proximal end thereof, and a receiving cup. The receiving cup is concavely shaped to direct a catheter-bearing needle into the conduit via the inlet port. The receiving cup is oriented substantially toward a skin surface when subcutaneously implanted within the patient to ease needle impingement thereon. A valve/seal assembly disposed in the conduit enables passage of the catheter therethrough while preventing fluid backflow.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: November 5, 2019
    Assignee: C.R. Bard, Inc.
    Inventors: Jason R. Stats, Bret Hamatake, Dwight T. Hibdon, Kelly J. Christian
  • Patent number: 10433790
    Abstract: A catheter assembly or other elongate tubular device for use in establishing vascular or other access within the body of a patient is disclosed. The catheter assembly is equipped with one or more sensors that enable monitoring of one or more physiological aspects of the patient or physical aspect of the catheter assembly itself when the catheter assembly is disposed within the patient. Such aspects include central venous pressure, body temperature, ECG heart signals, oxygen levels, ultrasound data, glucose, etc. The catheter assembly includes the ability to wirelessly transmit or otherwise forward data relating to the detected physiological parameters to another location, such as a patient electronic medical record, smartphone or other mobile device, nurse station, etc. Catheter assemblies configured to detect the frequency of catheter flushing, flushing quality, etc., are also disclosed.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 8, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Gidon Ofek, Blake Allen, Todd P. McFarland, Samuel A. Francis, Bret Hamatake
  • Publication number: 20190290838
    Abstract: A patency device for catheter assemblies and other elongate tubular devices used for establishing access to an interior body portion of a patient is disclosed. The patency device establishes and preserves patency of one or more lumens defined by the catheter assembly by providing impulses of positive pressure to fluid disposed in the lumen of the catheter assembly. In one embodiment, the patency device comprises a fluid reservoir configured to provide a fluid path to at least one lumen of the catheter assembly, and a pressure input portion. The pressure input portion is configured to provide pressure for one or more impulses of positive pressure to a fluid disposed within the lumen. The impulses are configured to dislodge occlusions that may have formed in the lumen. A negative pressure can then be provided to the lumen to aspirate the occlusion.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Inventors: Gidon Ofek, Jay A. Muse, Bret Hamatake, Garrick T. Smith
  • Patent number: 10322230
    Abstract: A patency device for catheter assemblies and other elongate tubular devices used for establishing access to an interior body portion of a patient is disclosed. The patency device establishes and preserves patency of one or more lumens defined by the catheter assembly by providing impulses of positive pressure to fluid disposed in the lumen of the catheter assembly. In one embodiment, the patency device comprises a fluid reservoir configured to provide a fluid path to at least one lumen of the catheter assembly, and a pressure input portion. The pressure input portion is configured to provide pressure for one or more impulses of positive pressure to a fluid disposed within the lumen. The impulses are configured to dislodge occlusions that may have formed in the lumen. A negative pressure can then be provided to the lumen to aspirate the occlusion.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: June 18, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Gidon Ofek, Jay A. Muse, Bret Hamatake, Garrick T. Smith
  • Patent number: 10231753
    Abstract: A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 19, 2019
    Assignee: C. R. Bard, Inc.
    Inventors: Eddie K. Burnside, Kelly B. Powers, Shayne Messerly, Jiaye Z. Jho, Bret Hamatake
  • Publication number: 20180353743
    Abstract: A method of making an access port, includes providing a port body defining a fluid cavity, positioning a septum over the fluid cavity, and securing the septum to the port body. The septum includes a lower portion having a first diameter, an upper portion joined to the lower portion at a juncture, the upper portion having a second diameter less than the first diameter at the juncture, and a plurality of palpation features joined to the upper portion. Each of the palpation features includes a first end adjacent a central axis of the septum, and a second end extending radially outward, overlapping the juncture.
    Type: Application
    Filed: August 20, 2018
    Publication date: December 13, 2018
    Inventors: Bret Hamatake, John G. Evans
  • Publication number: 20180304043
    Abstract: A magnetic stylet includes a core element and a distal region. The core element may include a proximal end coupled to a tab, the proximal end having a first diameter, a transition region, and a distal region extending from the transition region to a distal end. The distal region may have a second diameter less than the first diameter. The distal section may include the transition region and the distal region of the core element, a magnetic element, a polymer member, and a closure element. The magnetic element may be positioned distal of the transition region of the core element. The polymer member may be circumferentially disposed about the distal region of the core element, the continuous permanent magnetic element, and at least a portion of the transition region of the core element. The closure element may be an epoxy that forms a rounded end distal of the polymer member.
    Type: Application
    Filed: June 25, 2018
    Publication date: October 25, 2018
    Inventors: Matthew W. Bown, Mark A. Christensen, Guy Rome, Bret Hamatake
  • Patent number: 10052471
    Abstract: An access port for providing subcutaneous access to a patient is disclosed. The access port includes a septum including palpable identification indicia thereon. In particular, the access port in one embodiment includes a body that defines a fluid cavity and a needle-penetrable septum covering the fluid cavity for providing access thereto. The septum defines an outer periphery. One or more palpation features are included on the septum. The palpation features each include a portion that extends in a radial direction beyond the outer periphery of the septum. The palpation features are therefore disposed relatively farther away from each other, simplifying palpation and identification thereof after the port has been subcutaneously implanted into a patient. The palpation features can be indicative of an attribute of the port, such as its ability to withstand fluid pressures and flow rates associated with power injection, for instance.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: August 21, 2018
    Assignee: C. R. Bard, Inc.
    Inventors: Bret Hamatake, John G. Evans
  • Patent number: 10004875
    Abstract: An elongated medical device includes a core element, a polymer member, a closure element, and a permanent magnetic element. The core element may have a distal region including a first region with a diameter greater than a diameter of a second region, the second region distal of the first region and terminating at a core element distal end. The polymer member may be circumferentially disposed about an entire length of the core element and extending distal of the core element distal end. The closure element may be affixed to a distal end of the polymer member. The permanent magnetic element may be disposed along the second region proximal to the core element distal end, and may include a plurality of permanent magnetic elements spaced apart along the second region.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 26, 2018
    Assignee: C. R. Bard, Inc.
    Inventors: Matthew W. Bown, Mark A. Christensen, Guy Rome, Bret Hamatake
  • Publication number: 20170354777
    Abstract: A patency device for catheter assemblies and other elongate tubular devices used for establishing access to an interior body portion of a patient is disclosed. The patency device establishes and preserves patency of one or more lumens defined by the catheter assembly by providing impulses of positive pressure to fluid disposed in the lumen of the catheter assembly. In one embodiment, the patency device comprises a fluid reservoir configured to provide a fluid path to at least one lumen of the catheter assembly, and a pressure input portion. The pressure input portion is configured to provide pressure for one or more impulses of positive pressure to a fluid disposed within the lumen. The impulses are configured to dislodge occlusions that may have formed in the lumen. A negative pressure can then be provided to the lumen to aspirate the occlusion.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Gidon Ofek, Jay A. Muse, Bret Hamatake, Garrick T. Smith
  • Patent number: 9839763
    Abstract: Multi-lumen catheters with improved tip configurations, including a triple-lumen catheter which may be useful for apheresis. In one variation, the catheter has three lumens with distal openings angularly spaced apart and staggered axially with respect to one another. In another variation, the catheter has two lumens exiting distally and one centrally positioned lumen exiting proximally. A third variation is a catheter with a single distal opening and two proximal openings. The staggered lumen openings along the axial length of the catheter may decrease recirculation while maximizing flow rates.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 12, 2017
    Assignee: C. R. Bard, Inc.
    Inventors: Joseph Barrett, Dallen G. Herzog, Amir Orome, Jason R. Stats, Bret Hamatake
  • Publication number: 20170231700
    Abstract: An integrated catheter placement system for accurately placing a catheter within a patient's vasculature is disclosed. In one embodiment, the integrated system comprises a system console, a tip location sensor for temporary placement on the patient's chest, and an ultrasound probe. The tip location sensor senses a magnetic field of a stylet disposed in a lumen of the catheter when the catheter is disposed in the vasculature. The ultrasound probe ultrasonically images a portion of the vasculature prior to introduction of the catheter. ECG signal-based catheter tip guidance is included in the integrated system to enable guidance of the catheter tip to a desired position with respect to a node of the patient's heart. Various methods for establishing a conductive pathway between a sterile field of the patient and a non-sterile field are also disclosed.
    Type: Application
    Filed: May 2, 2017
    Publication date: August 17, 2017
    Inventors: Jeremy B. Cox, Anthony K. Misener, Catherine C. Breiter, Bret Hamatake, Eddie K. Burnside, Jason R. Stats, Amir Orome
  • Patent number: 9656041
    Abstract: Multi-lumen catheters with improved tip configurations, including a triple-lumen catheter which may be useful for apheresis. In one variation, the catheter has three lumens with distal openings angularly spaced apart and staggered axially with respect to one another. In another variation, the catheter has two lumens exiting distally and one centrally positioned lumen exiting proximally. A third variation is a catheter with a single distal opening and two proximal openings. The staggered lumen openings along the axial length of the catheter may decrease recirculation while maximizing flow rates.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: May 23, 2017
    Assignee: C. R. Bard, Inc.
    Inventors: Bret Hamatake, Jason R. Stats, Joseph Barrett
  • Publication number: 20170086746
    Abstract: A catheter assembly or other elongate tubular device for use in establishing vascular or other access within the body of a patient is disclosed. The catheter assembly is equipped with one or more sensors that enable monitoring of one or more physiological aspects of the patient or physical aspect of the catheter assembly itself when the catheter assembly is disposed within the patient. Such aspects include central venous pressure, body temperature, ECG heart signals, oxygen levels, ultrasound data, glucose, etc. The catheter assembly includes the ability to wirelessly transmit or otherwise forward data relating to the detected physiological parameters to another location, such as a patient electronic medical record, smartphone or other mobile device, nurse station, etc. Catheter assemblies configured to detect the frequency of catheter flushing, flushing quality, etc., are also disclosed.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 30, 2017
    Inventors: Gidon Ofek, Blake Allen, Todd P. McFarland, Samuel A. Francis, Bret Hamatake
  • Publication number: 20170079681
    Abstract: A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target.
    Type: Application
    Filed: November 30, 2016
    Publication date: March 23, 2017
    Inventors: Eddie K. Burnside, Kelly B. Powers, Shayne Messerly, Jiaye Z. Jho, Bret Hamatake
  • Patent number: 9554716
    Abstract: A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: January 31, 2017
    Assignee: C. R. Bard, Inc.
    Inventors: Eddie K. Burnside, Kelly B. Powers, Shayne Messerly, Jiaye Z. Jho, Bret Hamatake
  • Patent number: 9456760
    Abstract: A closed-ended catheter assembly that includes an electrically conductive pathway is disclosed. The conductive pathway enables electrical signals, such as ECG signals produced by a patient's heart, to pass through the closed-ended tip of the indwelling catheter while still preventing unintended fluid flow. In one embodiment, therefore, a catheter assembly is disclosed and comprises an elongate catheter tube including a closed distal end. The catheter tube defines at least one lumen and includes a valve defined in the catheter tube that is configured to selectively enable fluids to pass therethrough. The catheter tube includes a conductive element that provides an electrically conductive pathway between the at least one lumen and an exterior portion of the catheter. The conductive element includes a porous material extending between the at least one lumen and the exterior portion of the catheter, the porous material being transmissive to electrical signals and non-permeable to blood.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 4, 2016
    Assignee: C. R. Bard, Inc.
    Inventor: Bret Hamatake
  • Publication number: 20160144107
    Abstract: A safety needle assembly of an infusion set for infusing fluids into a subcutaneously implanted access port is disclosed. The needle assembly is configured to prevent fluid/vapor escape therefrom so as to reduce or prevent fluid exposure to a clinician using the needle assembly. In one embodiment, the needle assembly comprises a handle portion including a needle extending therefrom, the needle defining a lumen for passage of a fluid therethrough. The needle assembly also includes a safety assembly defining a needle hole through which the needle initially extends. The safety assembly is selectively and axially slidable along the needle in order to shield a distal tip of the needle and prevent user contact therewith. A fluid isolation component is included in the safety assembly for isolating fluid escape from the needle to prevent exposure to a clinician.
    Type: Application
    Filed: February 1, 2016
    Publication date: May 26, 2016
    Applicant: C. R. Bard, Inc.
    Inventors: William R. Barron, Bret Hamatake, Kelly B. Powers
  • Publication number: 20150182168
    Abstract: A closed-ended catheter assembly that includes an electrically conductive pathway is disclosed. The conductive pathway enables electrical ECG signals from a patient's heart to pass through the closed-ended tip of the indwelling catheter while still preventing unintended fluid flow. In one embodiment, a catheter assembly is disclosed and comprises an elongate catheter tube including a closed distal end. The catheter tube defines a lumen and includes a valve defined in the catheter tube to selectively enable fluids to pass therethrough. The catheter tube includes a conductive element that provides an electrically conductive pathway between the lumen and an exterior portion of the catheter. The conductive element includes an electrically conductive sleeve disposed within the lumen and is positioned proximate a hole defined in a catheter tube wall. The hole enables fluids in a vessel of the patient body in which the catheter tube is disposed to contact the sleeve.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Matthew A. Draper, Jay A. Muse, Gidon Ofek, Jason J. Vogel, Bret Hamatake, Kenneth W. Sykes, James P. Allen