Patents by Inventor Michael S. H. Chu

Michael S. H. Chu 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).

  • STENT TRIMMING DEVICES AND METHODS
    Publication number: 20200114131
    Abstract: Devices and methods for trimming a stent to a desired length with an outer tube and an inner tube having a distal end and a diameter configured to receive a portion of the stent in excess of the desired length. The inner tube may move within the outer tube and the distal end may include an end effector configured to trim the portion from the stent while the device and stent are within a patient.
    Type: Application
    Filed: December 10, 2019
    Publication date: April 16, 2020
    Inventors: Kimberly DeGraaf, Peter J. Pereira, Manuel Teixeira, William A. Sturos, Jefferson R. Alpizar, Jozef Slanda, Mark Hera, Michael S.H. Chu, David Salto
  • MULTIPLE CHANNEL FLEXIBLE URETEROSCOPE
    Publication number: 20200093360
    Abstract: A ureteroscope system includes a handle; an elongated shaft extends from the handle to a distal end and includes a working channel which is opened at the distal end; an external member extends from a proximal end to a distal end and is coupled to the shaft, the member includes a hub and a tube defining a first external channel; and a coupling mechanism defines first and second tubes and is coupled the distal end of the member to the distal end of the shaft. The first tube defines a first lumen and the second tube defines a second lumen which is sized and shaped to receive a distal end of the member. A proximal portion of the first tube is sized and shaped to be inserted into a distal portion of the shaft such that the first lumen is opened to the working channel.
    Type: Application
    Filed: August 15, 2019
    Publication date: March 26, 2020
    Inventors: Michael S. H. CHU, Mayur Patel, Sacha Tang
  • Medical systems, devices, and related methods
    Patent number: 10588650
    Abstract: A medical system may include an insertion device having a handle, a shaft coupled to the handle of the insertion device, and a port positioned on the handle of the insertion device. The port may be in fluid communication with a working channel of the shaft. The port may be a female luer port. The medical system may further include a medical device having a control member terminating in an end effector, a handle having a plurality of circumferential slots along the length of the handle, and a plunger moveable along a longitudinal axis of the handle of the medical device between a first position and a second position. In the first position, the end effector may be positioned within the shaft, and in the second position, the end effector may be positioned distally of the shaft.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: March 17, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Medical retrieval devices and related methods of use
    Patent number: 10582938
    Abstract: A medical device may include a plurality of branch members having moveable distal portions. The medical device also may include a first moveable member movably connected to the distal portion of one of the branch members at a first location along the branch member. The first moveable member may have first and second proximal portions extending from the first location and disposed within one or more lumens of one or more of the other branch members. The moveable distal portions of the plurality of branch members and the first moveable member may form a first snare movable between a collapsed configuration and an expanded configuration.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: March 10, 2020
    Assignee: Bosotn Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Tantra S. Budiman
  • MEDICAL HANDLE
    Publication number: 20200038041
    Abstract: A retrieval device attachable to a scope includes a handle which has an attachment portion configured to couple the handle to the scope; a shaft coupled to the handle having a wire immovably coupled to the handle; and a sheath movable relative to the handle over the wire between a distal position and a proximal position via an actuator of the handle. The actuator actuates a slider assembly of the handle. The slider assembly is coupled to the sheath and movable relative to the attachment portion to move the sheath and an expandable end effector coupled to the distal end of the wire. The end effector is movable between a collapsed configuration when the sheath is moved distally to the distal position to cover the end effector and an expanded configuration when the sheath is moved proximally to the proximal position, uncovering the end effector.
    Type: Application
    Filed: July 3, 2019
    Publication date: February 6, 2020
    Inventors: Michael S. H. CHU, Kenneth W. ADAMS, Sharmad S. JOSHI, John SUBASIC
  • Systems and methods for sling delivery and placement
    Patent number: 10548702
    Abstract: The invention, in various embodiments, is directed to systems, devices, and methods relating to pre-pubic approaches to delivering a supportive sling to periurethral tissue of a patient. In some embodiments, a system includes a sling assembly having a sling and a sleeve, a guide tube coupled to an end portion of the sleeve, and a delivery device having a shaft, where the shaft can slidably interfit into a lumen of the guide tube such that the distal-most tip of the shaft extends out of the lumen of the guide tube.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: February 4, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian MacLean, James Goddard, Michael S. H. Chu
  • Medical Device Handle and Method of Use
    Publication number: 20200023163
    Abstract: A handle assembly includes a drive wire coupled to an expandable end effector, the wire having a diameter of no more than 3 French and a handle cannula receiving the wire therethrough, rotation of the handle cannula transferring torque to rotate the wire. The assembly also includes a shaft receiving the handle cannula, rotation of the shaft transferring torque to rotate the handle cannula. The assembly further includes an actuation assembly receiving the shaft, the actuation assembly coupled to a sheath sized to receive the wire and end effector therethrough, the actuation assembly moveable between a proximal configuration in which the sheath is moved proximally to expand the end effector and a distal configuration in which the sheath is moved distally to retract the end effector, the actuation assembly including a rotation mechanism transferring torque to the shaft to rotate the shaft.
    Type: Application
    Filed: May 8, 2019
    Publication date: January 23, 2020
    Inventors: Michael S. H. CHU, Ashley TAYLOR, Brian P. WATSCHKE
  • Retrieval devices and related methods of use
    Patent number: 10537346
    Abstract: According to an embodiment of the present disclosure, a retrieval device may include a distally located end effector movable between a contracted state and an expanded state. The end effector may include a plurality of support members each including a passage. The end effector may also include a plurality of movable members. A first movable member may include a first portion extending into a first passage of the support member passages. The retrieval device may also include a proximally located handle assembly including a longitudinal actuator and a twisting actuator coupled to the plurality of movable members. The longitudinal actuator and twisting actuator may be configured to longitudinally move and twist the movable members without longitudinally moving and twisting the support members.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: January 21, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Stent trimming devices and methods
    Patent number: 10532196
    Abstract: Devices and methods for trimming a stent to a desired length with an outer tube and an inner tube having a distal end and a diameter configured to receive a portion of the stent in excess of the desired length. The inner tube may move within the outer tube and the distal end may include an end effector configured to trim the portion from the stent while the device and stent are within a patient.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 14, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Kimberly DeGraaf, Peter J. Pereira, Manuel Teixeira, William A. Sturos, Jefferson R. Alpizar, Jozef Slanda, Mark Hera, Michael S. H. Chu, David Salto
  • Medical device handles and related methods
    Patent number: 10524770
    Abstract: A medical device may include a tool body and a handle. The handle may include a first body having a first coupling feature extending axially along the first body and a second body including a second coupling feature positioned within the first coupling feature. In a first orientation, the first body and second body may be rotatable and axially translatable relative to each other as a function of the first and second coupling features.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: January 7, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. Chu
  • Medical devices and related methods
    Patent number: 10520694
    Abstract: A medical device may include a spool element, including a channel to receive or store a coiled element, and a handle element. The handle element may be coupled to the spool element and include a lumen that at least partially opens into the channel. The medical device may also include an introducer element coupled to the handle, and relative rotation of the spool element and the handle element may dispense or retract the coiled element from the introducer.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 31, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Richard C. Tah
  • TISSUE REMOVAL DEVICES AND RELATED METHODS
    Publication number: 20190388074
    Abstract: A tissue removal device may include a handle. The device may include a sheath coupled to the handle. A first portion of the sheath may be within the handle. A second portion of the sheath may protrude from the handle. The sheath may include a passage. The device may include an end effector coupled to an end of the sheath. The device may include a drive member coupled to the handle and to the end effector. The drive member may extend through the passage of the sheath to the end effector. Actuation of the handle may move the end effector between an open state, for receiving material, and a closed state, for holding onto material, by causing relative movement between the drive member and the sheath. Further actuation of the handle may move the end effector relative to the handle while the end effector remains in the closed state.
    Type: Application
    Filed: June 20, 2019
    Publication date: December 26, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Richard C. TAH, Ashley TAYLOR, Brian P. WATSCHKE, Robert Edward LUND, Niraj Prasad RAUNIYAR, Michael S. H. CHU
  • Reusable delivery devices
    Patent number: 10492829
    Abstract: According to an aspect, a medical device may include a needle member, and a handle coupled to the needle member. The handle may define a track portion. The medical device may also include a pusher member having a sheath disposed around a portion of the needle member, and an extension member being movably coupled to the track portion of the handle such that the pusher member is configured to move from a first position to a second position during a surgical procedure. The pusher member may be removable from the handle. The sheath may define a slot, and the pusher member may be removable from the needle member through the slot.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 3, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Doreen S Rao, James M Goddard, Joshin Sahadevan, Gururaju Chikkaraju, Michael S. H. Chu, Kenneth W Adams
  • MEDICAL SYSTEMS, DEVICES, AND RELATED METHODS
    Publication number: 20190346643
    Abstract: A medical system includes a tube and a plurality of clips that secure the tube in a partially spiral configuration. The medical system also includes a platform coupled to a radial exterior of the tube. The platform includes at least one hole and a plurality of retaining elements.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 14, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. CHU
  • RETRIEVAL DEVICES AND RELATED METHODS OF USE
    Publication number: 20190336150
    Abstract: A retrieval device may have a contracted state and an expanded state. The retrieval device may include a sheath and at least three support members. Each of the support members may have a first portion with a first cross-sectional shape and a second portion with a second cross-sectional shape different from the first cross-sectional shape. A proximal end fixed of each of the support members may be coupled to the sheath, and a distal end may be movable relative to the sheath. The retrieval device may further include at least three movable members movable relative to the support members. Each movable member may extend through a lumen of one support member of the at least three support members and through a lumen of a different support member of the at least three support members.
    Type: Application
    Filed: July 11, 2019
    Publication date: November 7, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • STONE IDENTIFICATION METHODS AND SYSTEMS
    Publication number: 20190328349
    Abstract: Aspects of stone identification methods and systems are described. According to one aspect, an exemplary method comprises: transmitting to a processing unit, with an imaging element mounted on a distal end of a scope, image data about a stone object inside a body cavity; generating from the image data, with the processing unit, a visual representation of the stone object and the body cavity; establishing from a user input, with the processing unit, a scale for the visual representation; determining from the visual representation, with the processing unit, a size of the stone object on the scale; comparing, with the processing unit, the size of the stone object with a predetermined maximum size to determine a removal status; and augmenting, with the processing unit, the visual representation to include an indicator responsive to the removal status. Associated systems are also described.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 31, 2019
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Peter J. PEREIRA, Michael S. H. CHU, Elizabeth STOKLEY, David SALTO, Candace RHODES
  • MEDICAL DEVICE AND METHOD OF DELIVERING THE MEDICAL DEVICE
    Publication number: 20190314128
    Abstract: The invention discloses an implant. The implant may include a first flap and a second flap. The first flap may further include a first portion, a second portion and a transition region. The first portion may be configured to be attached proximate a sacrum. The second portion may be configured to be attached to an anterior vaginal wall. The transition region lies between the first portion and the second portion. The second flap may be fabricated such that a portion of the second flap is configured to be attached to a posterior vaginal wall. The implant may be configured such that a value corresponding to a biomechanical parameter defining a biomechanical attribute of the portion of the first flap attaching to the anterior wall is different from a value of the biomechanical parameter defining the biomechanical attribute of the portion of the second flap attaching to the posterior wall.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 17, 2019
    Inventors: Peter J. Pereira, James M. Goddard, Michael S.H. Chu, Kenneth M. Flynn
  • Retrieval devices and related methods of use
    Patent number: 10390851
    Abstract: A retrieval device may have a contracted state and an expanded state. The retrieval device may include a sheath and at least three support members. Each of the support members may have a first portion with a first cross-sectional shape and a second portion with a second cross-sectional shape different from the first cross-sectional shape. A proximal end fixed of each of the support members may be coupled to the sheath, and a distal end may be movable relative to the sheath. The retrieval device may further include at least three movable members movable relative to the support members. Each movable member may extend through a lumen of one support member of the at least three support members and through a lumen of a different support member of the at least three support members.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: August 27, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Medical device and method of delivering the medical device
    Patent number: 10376351
    Abstract: The invention discloses an implant. The implant may include a first flap and a second flap. The first flap may further include a first portion, a second portion and a transition region. The first portion may be configured to be attached proximate a sacrum. The second portion may be configured to be attached to an anterior vaginal wall. The transition region lies between the first portion and the second portion. The second flap may be fabricated such that a portion of the second flap is configured to be attached to a posterior vaginal wall. The implant may be configured such that a value corresponding to a biomechanical parameter defining a biomechanical attribute of the portion of the first flap attaching to the anterior wall is different from a value of the biomechanical parameter defining the biomechanical attribute of the portion of the second flap attaching to the posterior wall.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 13, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Peter J. Pereira, James M. Goddard, Michael S. H. Chu, Kenneth M. Flynn
  • Stone identification methods and systems
    Patent number: 10368820
    Abstract: Aspects of stone identification methods and systems are described. According to one aspect, an exemplary method comprises: transmitting to a processing unit, with an imaging element mounted on a distal end of a scope, image data about a stone object inside a body cavity; generating from the image data, with the processing unit, a visual representation of the stone object and the body cavity; establishing from a user input, with the processing unit, a scale for the visual representation; determining from the visual representation, with the processing unit, a size of the stone object on the scale; comparing, with the processing unit, the size of the stone object with a predetermined maximum size to determine a removal status; and augmenting, with the processing unit, the visual representation to include an indicator responsive to the removal status. Associated systems are also described.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: August 6, 2019
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Peter J. Pereira, Michael S. H. Chu, Elizabeth Stokley, David Salto, Candace Rhodes