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).

  • Patent number: 11903600
    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: Grant
    Filed: September 27, 2021
    Date of Patent: February 20, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Kenneth W. Adams, Sharmad S. Joshi, John Subasic
  • Publication number: 20240041305
    Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 8, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: John O. McWEENEY, Michael S. H. CHU, Jozef SLANDA, Benjamin E. MORRIS, David W. ROBERTSON, David I. FREED, James F. SCHUERMANN, John B. GOLDEN, Brian Keith WELLS, Jesse Leonard FARRIS, III, Oscar R. CARRILLO, JR., Todd A. HALL, Yem CHIN, Mark L. ADAMS
  • Patent number: 11890210
    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: Grant
    Filed: August 21, 2020
    Date of Patent: February 6, 2024
    Assignee: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Michael S H Chu, Mayur K. Patel, Sacha Tang
  • Publication number: 20240000470
    Abstract: A retrieval device may include a sheath including a distal end and a proximal end, and an end effector at the distal end. At least a portion of the end effector may be movable relative to the sheath between extended and retracted states. The end effector may include a support member extending from the distal end of the sheath, and a movable member extending from the distal end of the support member. The device may include a handle assembly at the proximal end of the sheath, having an actuation member for transitioning the end effector between the extended and retracted states. The device may include a biasing member coupled to at least one of the actuation member and the sheath that may control a force, exerted by one of the movable members and the support member on the other, generated by relative movement between the movable and support members.
    Type: Application
    Filed: September 15, 2023
    Publication date: January 4, 2024
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. CHU, Kimberly DeGRAAF, Peter J. PEREIRA
  • Patent number: 11857740
    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: Grant
    Filed: October 27, 2022
    Date of Patent: January 2, 2024
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Patent number: 11832793
    Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: December 5, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: John O. McWeeney, Michael S. H. Chu, Jozef Slanda, Benjamin E. Morris, David W. Robertson, David I. Freed, James F. Schuermann, John B. Golden, Brian Keith Wells, Jesse Leonard Farris, III, Oscar R. Carrillo, Jr., Todd A. Hall, Yem Chin, Mark L. Adams
  • Patent number: 11819192
    Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: November 21, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: John O. McWeeney, Michael S. H. Chu, Jozef Slanda, Benjamin E. Morris, David W. Robertson, David I. Freed, James F. Schuermann, John B. Golden, Brian Keith Wells, Jesse Leonard Farris, III, Oscar R. Carrillo, Jr., Todd A. Hall, Yem Chin, Mark L. Adams
  • Patent number: 11793530
    Abstract: A retrieval device may include a sheath including a distal end and a proximal end, and an end effector at the distal end. At least a portion of the end effector may be movable relative to the sheath between extended and retracted states. The end effector may include a support member extending from the distal end of the sheath, and a movable member extending from the distal end of the support member. The device may include a handle assembly at the proximal end of the sheath, having an actuation member for transitioning the end effector between the extended and retracted states. The device may include a biasing member coupled to at least one of the actuation member and the sheath that may control a force, exerted by one of the movable members and the support member on the other, generated by relative movement between the movable and support members.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: October 24, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. Chu, Kimberly DeGraaf, Peter J. Pereira
  • Publication number: 20230329526
    Abstract: An endoscopic deployment device includes a body mountable on an endoscopic device, the body having a movable carrier couplable to an end effector device, the end effector device having an end effector shaft covered by an outer sheath and an end effector extending from a distal end of the end effector shaft, the outer sheath being sized and shaped for insertion through a working channel of the endoscopic device, the body having a carrier channel for the carrier to slide therein, wherein the end effecter is actuatable between an open position and a closed position; and a motor having a drive shaft coupled to the carrier, rotation of the drive shaft sliding the carrier in the carrier channel and actuating the end effector in response to a signal from one or more actuation buttons; wherein at least one vibration motor generates vibrations as an angular position of the motor changes.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: SHARMAD S. JOSHI, MICHAEL S. H. CHU
  • Publication number: 20230263369
    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: April 25, 2023
    Publication date: August 24, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. CHU, Sacha TANG, Mayur Kiran PATEL
  • Publication number: 20230263571
    Abstract: A medical system may include an insertion device including a delivery shaft with at least one lumen, a tube coupled to an exterior of the delivery shaft, and an adaptor coupling a distal end of the delivery shaft to a distal end of the tube. One of the delivery shaft and the tube may be configured to receive an energy delivery device, and the other of the delivery shaft and the tube may be configured to be coupled to a suction source to apply suction.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 24, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Michael S. H. CHU, Mayur K. PATEL, Sacha TANG, Kimberly DeGRAAF
  • Patent number: 11723516
    Abstract: An endoscopic deployment device includes a body mountable on an endoscopic device, the body having a movable carrier couplable to an end effector device, the end effector device having an end effector shaft covered by an outer sheath and an end effector extending from a distal end of the end effector shaft, the outer sheath being sized and shaped for insertion through a working channel of the endoscopic device, the body having a carrier channel for the carrier to slide therein, wherein the end effecter is actuatable between an open position and a closed position; and a motor having a drive shaft coupled to the carrier, rotation of the drive shaft sliding the carrier in the carrier channel and actuating the end effector in response to a signal from one or more actuation buttons; wherein at least one vibration motor generates vibrations as an angular position of the motor changes.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: August 15, 2023
    Assignee: BOSTON SCIENTIFIC SCIMED INC.
    Inventors: Sharmad S. Joshi, Michael S. H. Chu
  • Publication number: 20230240698
    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: April 10, 2023
    Publication date: August 3, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Publication number: 20230218868
    Abstract: The present disclosure relates generally to the field of medical devices and methods to assist in the introduction of an instrument into a patient, and more particularly to medical devices for measuring and/or monitoring forces applied during introduction of an access sheath through a body lumen.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 13, 2023
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventor: Michael S H Chu
  • Publication number: 20230181011
    Abstract: A device may include a first portion coupled to a shaft of an insertable medical device. The first portion may extend along a first portion longitudinal axis between a proximal end and a distal end. The first portion may include a protrusion extending radially outwardly of the first portion longitudinal axis. At least a portion of the first portion may be received within a lumen of a second portion. The second portion may be axially moveable along the first portion longitudinal axis relative to the first portion. The second portion may include a longitudinally extending channel. A spring may be located radially between the first portion and the second portion.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 15, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventor: Michael S.H. CHU
  • Patent number: 11672601
    Abstract: A medical system may include an insertion device including a delivery shaft with at least one lumen, a tube coupled to an exterior of the delivery shaft, and an adaptor coupling a distal end of the delivery shaft to a distal end of the tube. One of the delivery shaft and the tube may be configured to receive an energy delivery device, and the other of the delivery shaft and the tube may be configured to be coupled to a suction source to apply suction.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: June 13, 2023
    Inventors: Michael S. H. Chu, Mayur K. Patel, Sacha Tang, Kimberly DeGraaf
  • Patent number: 11672555
    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: July 11, 2019
    Date of Patent: June 13, 2023
    Assignee: Boston Scientific Scimed, Inc.
    Inventor: Michael S. H. Chu
  • Patent number: 11653827
    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: Grant
    Filed: October 25, 2019
    Date of Patent: May 23, 2023
    Assignee: Boston Scientific Scimed Inc.
    Inventors: Michael S. H. Chu, Sacha Tang, Mayur Kiran Patel
  • Publication number: 20230148845
    Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and reusable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: John O. McWEENEY, Michael S. H. CHU, Jozef SLANDA, Benjamin E. MORRIS, David W. ROBERTSON, David I. FREED, James F. SCHUERMANN, John B. GOLDEN, Brian Keith WELLS, Jesse Leonard FARRIS, III, Oscar R. CARRILLO, JR., Todd A. HALL, Yem CHIN, Mark L. ADAMS
  • Publication number: 20230145569
    Abstract: Several embodiments of the present invention are generally directed to medical visualization systems that comprise combinations of disposable and resuable components, such as catheters, functional handles, hubs, optical devices, etc. Other embodiments of the present invention are generally directed to features and aspects of an in-vivo visualization system that comprises an endoscope having a working channel through which a catheter having viewing capabilities is routed. the catheter may obtain viewing capabilities by being constructed as a vision catheter or by having a fiberscope or other viewing device selectively routed through one of its channels. The catheter is preferably of the steerable type so that the distal end of the catheter may be steered from its proximal end as it is advanced with the body. A suitable use for the in-vivo visualization system includes but is not limited to diagnosis and/or treatment of the duodenum, and particularly the biliary tree.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 11, 2023
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: John O. McWEENEY, Michael S. H. CHU, Jozef SLANDA, Benjamin E. MORRIS, David W. ROBERTSON, David I. FREED, James F. SCHUERMANN, John B. GOLDEN, Brian Keith WELLS, Jesse Leonard FARRIS, III, Oscar R. CARRILLO, JR., Todd A. HALL, Yem CHIN, Mark L. ADAMS