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).

  • Publication number: 20200222163
    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: March 26, 2020
    Publication date: July 16, 2020
    Inventors: Peter J. Pereira, James M. Goddard, Michael S.H. Chu
  • Patent number: 10709465
    Abstract: A medical device may include a sheath, an elongate member at least partially surrounded by the sheath, an end effector at a distal end of the elongate member and movable between an open position and a closed position, and a handle. The handle may include an actuator member coupled to the sheath, an adjustment member, and a biasing member extending between the actuator member and the adjustment member.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 14, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Peter J. Pereira, Elizabeth A. Stokley, Ronald Ciulla, Colm Long
  • Publication number: 20200200313
    Abstract: A fluid management system may include a fluid pump capable of generating a pulsatile flow of fluid, a fluid pathway for transporting the pulsatile flow of fluid from a fluid source through the fluid pump to a medical device, a dampening element in fluid communication with the fluid pathway and operably independent of the fluid pump, the dampening element comprising one or more barrels, each barrel including a movable seal member disposed within the barrel and a biasing member disposed within the barrel and engaged with the movable seal member, the dampening element being responsive to pressure fluctuations of the pulsatile fluid flow to actively dampen the pressure fluctuations, and a fluid flow sensor disposed along the fluid pathway between the dampening element and the medical device to measure a flow rate of the smoothened pulsatile fluid flow in both flow directions.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: MICHAEL S. H. CHU, MAYUR kiran PATEL, SACHA TANG
  • Publication number: 20200197579
    Abstract: A medical system includes an insertion device including a delivery shaft with an internal lumen, a coupling tube coupled to the delivery shaft and configured to receive a medical device, and a liner tube inserted through the internal lumen of the delivery shaft.
    Type: Application
    Filed: October 25, 2019
    Publication date: June 25, 2020
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. CHU, Sacha TANG, Mayur Kiran PATEL
  • Publication number: 20200178990
    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: Application
    Filed: February 10, 2020
    Publication date: June 11, 2020
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Patent number: 10667802
    Abstract: A medical device may include a luminal body defining a working channel extending between a proximal end of the luminal body and a distal end of the luminal body. The device may also include a carrier defining a pusher thereon. The carrier may be configured to transition between a first state and a second state. In the first state, a distal portion of the carrier may extend within the working channel along a central longitudinal axis thereof. In the second state, the distal portion of the carrier may extend distally of the luminal body. The device may also include a plurality of anchors which may be disposed about the carrier. Also, at least a distal-most anchor of the plurality of anchors may define a surface configured to cooperate with the pusher and further defines a curved wall configured to cooperate with the pusher to rotate the plurality of anchors.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: June 2, 2020
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Jonathan Zoll, Michael S. H. Chu, Peter J. Pereira
  • Patent number: 10646187
    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: June 19, 2019
    Date of Patent: May 12, 2020
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Peter J. Pereira, Michael S. H. Chu, Elizabeth Stokley, David Salto, Candace Rhodes
  • Patent number: 10639137
    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 12, 2014
    Date of Patent: May 5, 2020
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Peter J. Pereira, James M. Goddard, Michael S. H. Chu
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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