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: 20240245286
    Abstract: An endoscopic device includes a handle body operatively couplable to a shaft housing. The handle body includes an actuator for controlling a distal end of an endoscopic shaft extending from the shaft housing. The device also includes a pull wire attachment configured to operatively couple to a pull wire extending through the shaft housing and the endoscopic shaft to the distal end. Applying tension to the pull wire deflects the distal end of the endoscopic shaft. In addition, the device includes a pulling mechanism coupled to the actuator and having the pull wire attachment extending therefrom. When the pull wire attachment is operatively coupled to the pull wire, actuation of the actuator applies tension to the pull wire and deflects the distal end of the endoscopic shaft.
    Type: Application
    Filed: April 5, 2024
    Publication date: July 25, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S.H. CHU, Sacha TANG
  • Patent number: 12029392
    Abstract: An actuation mechanism for an endoscope is disclosed. The actuation mechanism includes a housing configured to be attached to a handle of the endoscope and a thumbwheel coupled to the housing. Rotation of the thumbwheel causes longitudinal translation of an elongated medical device through a working channel of the endoscope. In some instances, the actuation mechanism includes a drive wheel and/or a roller wheel, wherein the elongate medical device is compressively positioned between the roller wheel and/or the drive wheel. Rotation of the thumbwheel may cause the drive wheel and/or the roller wheel to rotation in opposite rotational directions.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: July 9, 2024
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Michael S H Chu
  • Publication number: 20240215998
    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: March 12, 2024
    Publication date: July 4, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Publication number: 20240215806
    Abstract: A system for modularly assembling a scope device includes an optical module which has an optical housing and a longitudinal member extending distally therefrom. A distal end of the member includes a camera for visualizing a target area, electric wires and a light source extending from the camera to the optical housing. The system also includes a deflector module coupleable with the optical module. The deflector module includes a deflector housing and a deflector shaft extending distally therefrom. The shaft includes a first channel sized, shaped and configured to receive the member therein and a deflectable portion extending along a distal portion of the shaft. The deflector housing includes an actuator for deflecting the deflectable portion, the optical and deflector housings including corresponding connecting elements to engage one another when the member is inserted through the first channel and the deflector and optical housings are coupled.
    Type: Application
    Filed: March 15, 2024
    Publication date: July 4, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S.H. CHU, Sacha TANG, Mayur Kiran PATEL
  • Patent number: 12021196
    Abstract: An insertion device includes an elongate member and a stylet. The elongate member has a proximal end portion, a distal end portion, and defines a lumen therethrough. The stylet has a proximal end portion, a distal end portion, and is slidably coupled to the elongate member. The stylet is configured to move from a first position to a second position with respect to the elongate member. The proximal end portion of the stylet is configured to removably couple a mesh carrier thereto. A portion of the proximal end portion of the stylet is disposed outside of the lumen of the elongate member when the stylet is in its first position and is disposed within the lumen when the stylet is in its second position.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 25, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Patent number: 12011206
    Abstract: In one example, a medical device may be adapted for use with a delivery device, and the medical device may include a handle including at least one actuator; a body adapted to releasably mount to a distal portion of the delivery device, the body supporting a pair of jaws rotatably coupled to the body; and a control wire coupled to the pair of jaws and the actuator. The actuator may be configured to open and close the pair of jaws.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: June 18, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Sacha Tang, Pat S. Phongsavanh
  • Publication number: 20240188792
    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: February 22, 2024
    Publication date: June 13, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Peter J. Pereira, Michael S. H. Chu, Elizabeth Stokley, David Salto, Candace Rhodes
  • Publication number: 20240172923
    Abstract: A scope device includes a shaft, a deflectable portion, and a handle portion. The shaft is inserted through a body lumen to a target area within a body. The shaft defines first and second lumens extending along a proximal portion thereof. The first and second lumens are merged to form a common lumen along a distal portion thereof via a fitting having a structure which, when connected to the first and second lumens, converge the first and second lumens toward the common lumen. The deflectable portion is connected to the distal end of the shaft and includes a channel aligned with and in communication with the common lumen. The handle portion includes a connector having a first hub including a first channel open to and in communication with the first lumen and a second hub including a second channel open to and in communication with the second lumen.
    Type: Application
    Filed: February 2, 2024
    Publication date: May 30, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S.H. CHU, Mayur Kiran PATEL, Sacha TANG
  • Publication number: 20240164625
    Abstract: An endoscopic deployment device includes a body mountable on an endoscopic device, a communication interface, and a motor. The body has a movable carrier couplable to an elongated end effector device. The effector device has an end effector shaft covered by an outer sheath and an end effector extending from a distal end of the shaft. The sheath is sized and shaped for insertion through a working channel of an endoscopic shaft of the endoscopic device. The body has a carrier channel sized for the carrier to slide therein. The end effecter is actuatable between open and closed positions by sliding the carrier in the carrier channel which in turn slides the sheath over the end effector shaft to uncover/cover the end effector. Rotation of a drive shaft of the motor is sliding the carrier in the carrier channel and actuating the end effector in response to a signal.
    Type: Application
    Filed: February 1, 2024
    Publication date: May 23, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S.H. CHU, Joseph ARRUDA, Sacha TANG, Kenneth W. ADAMS
  • Patent number: 11986186
    Abstract: A medical device, comprising a fastening assembly, wherein the fastening assembly includes an adapter defining an opening therethrough, a fastener releasably coupled to the adapter, wherein the fastener includes at least two jaws pivotable relative to one another, the fastener having a first configuration wherein the jaws are open and a second configuration wherein the jaws are closed, and at least one cable coupled to the fastener and the adapter, the at least one cable being configured to apply tension to the fastener to transition between the first configuration and the second configuration while the fastener is coupled to the adapter, and to control release of the fastener from the adapter.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: May 21, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Ryan Evers, Michael S. H. Chu, Paul Smith, Narunn Suon
  • Patent number: 11974722
    Abstract: An endoscopic device includes a handle body operatively couplable to a shaft housing. The handle body includes an actuator for controlling a distal end of an endoscopic shaft extending from the shaft housing. The device also includes a pull wire attachment configured to operatively couple to a pull wire extending through the shaft housing and the endoscopic shaft to the distal end. Applying tension to the pull wire deflects the distal end of the endoscopic shaft. In addition, the device includes a pulling mechanism coupled to the actuator and having the pull wire attachment extending therefrom. When the pull wire attachment is operatively coupled to the pull wire, actuation of the actuator applies tension to the pull wire and deflects the distal end of the endoscopic shaft.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 7, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Sacha Tang
  • Publication number: 20240138667
    Abstract: A system includes a scope device, an adapter and an outer sheath. The device includes a scope cap and a shaft extending longitudinally from a proximal end to a distal end. The shaft includes a working channel. The cap is coupled to the distal end such that cap's inlet opening is in communication with and in alignment with the channel. The adapter has a substantially tubular body mountable over the cap such that a distal chamber defined via the adapter and the cap is open to and in communication with the opening thereof so that, when a negative pressure is applied through the channel, a suction force applied is applied through the distal chamber to draw the stone one of into and against the chamber from the area. The sheath delivers a fluid to the area via a space extending between sheath's interior and shaft's exterior.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 2, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Publication number: 20240138867
    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: January 11, 2024
    Publication date: May 2, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. CHU, Kenneth W. ADAMS, Sharmad S. JOSHI, John SUBASIC
  • Publication number: 20240138666
    Abstract: A system includes an adapter and an insertion device. The device includes a shaft extending longitudinally from a proximal end to a distal end. The shaft includes first and second working channels extending therethrough. The adapter includes a proximal portion coupled to the distal end and a distal portion defining a chamber receiving a stone. The proximal portion includes an outlet extending through a portion thereof positioned so that, when the adapter is in desired alignment, a fluid supplied to the first channel is directed out of the adapter via the outlet to an area surrounding the adapter. The adapter further includes an inlet channel extending longitudinally through the proximal portion to a distal opening which is open to the chamber. The inlet channel is configured so that, when negative pressure is applied thereto, the fluid is drawn through the distal opening through the inlet channel to the second channel.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 2, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Publication number: 20240130874
    Abstract: The present disclosure relates generally to the field of medical devices. In particular, the present disclosure relates to delivering a variable length stent within a patient. In one example, a stent may include a body comprising coils about a longitudinal axis of the stent and along the length of the stent between a proximal end and a distal end in a substantially helical pattern. The coils may define a lumen along the longitudinal axis through the center of the body. A distal tube may have a wall extending from the distal end of the body. A first aperture may extend through the wall of the distal tube into the lumen. A distal retention member may extend from the distal tube. A distal suture may have a mid-portion. The mid-portion may extend through the first aperture.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 25, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S H Chu, Mayur K. Patel, Sacha Tang
  • Patent number: 11957368
    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: April 10, 2023
    Date of Patent: April 16, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Patent number: 11957309
    Abstract: A system for modularly assembling a scope device includes an optical module which has an optical housing and a longitudinal member extending distally therefrom. A distal end of the member includes a camera for visualizing a target area, electric wires and a light source extending from the camera to the optical housing. The system also includes a deflector module coupleable with the optical module. The deflector module includes a deflector housing and a deflector shaft extending distally therefrom. The shaft includes a first channel sized, shaped and configured to receive the member therein and a deflectable portion extending along a distal portion of the shaft. The deflector housing includes an actuator for deflecting the deflectable portion, the optical and deflector housings including corresponding connecting elements to engage one another when the member is inserted through the first channel and the deflector and optical housings are coupled.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: April 16, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Sacha Tang, Mayur Kiran Patel
  • Patent number: 11937768
    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 13, 2022
    Date of Patent: March 26, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Peter J. Pereira, Michael S. H. Chu, Elizabeth Stokley, David Salto, Candace Rhodes
  • Publication number: 20240082548
    Abstract: A medical device may include an introducer sheath, having a distal and a proximal end and a lumen extending from the distal end to the proximal end. The introducer sheath may also include a tab formed at the distal end and extending distal to the lumen, and a frangible portion extending between the distal end and the proximal end.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. CHU
  • Patent number: 11925315
    Abstract: A scope device includes a shaft, a deflectable portion, and a handle portion. The shaft is inserted through a body lumen to a target area within a body. The shaft defines first and second lumens extending along a proximal portion thereof. The first and second lumens are merged to form a common lumen along a distal portion thereof via a fitting having a structure which, when connected to the first and second lumens, converge the first and second lumens toward the common lumen. The deflectable portion is connected to the distal end of the shaft and includes a channel aligned with and in communication with the common lumen. The handle portion includes a connector having a first hub including a first channel open to and in communication with the first lumen and a second hub including a second channel open to and in communication with the second lumen.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: March 12, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Mayur Kiran Patel, Sacha Tang