Patents by Inventor Woojin Lee

Woojin Lee 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: 20080015631
    Abstract: A surgical instrument that includes an instrument shaft having proximal and distal ends, a tool disposed from the distal end of the instrument shaft, a control handle disposed from the proximal end of the instrument shaft, a distal motion member for coupling the distal end of the instrument shaft to the tool, a proximal motion member for coupling the proximal end of the instrument shaft to the handle, actuation means extending between the distal and proximal motion members for coupling motion of the proximal motion member to the distal motion member for controlling the positioning of the tool, a rotation knob disposed adjacent the control handle and rotatable relative to the control handle for causing a corresponding rotation of the instrument shaft and tool and a locking mechanism for fixing the position of the tool at a selected position and having locked and unlocked states.
    Type: Application
    Filed: September 27, 2006
    Publication date: January 17, 2008
    Inventors: Woojin Lee, Andres Chamorro, Woojoong Lee
  • Publication number: 20070282371
    Abstract: The surgical instrument includes a distal tool, a rigid or flexible elongated shaft that supports the distal tool, and a proximal handle or control member, where the tool and the handle are coupled to the respective distal and proximal ends of the elongated shaft via distal and proximal bendable motion members. Actuation means extends between said distal and proximal members whereby any deflection of said control handle with respect to said elongated instrument shaft causes a corresponding bending of said distal motion member for control of said working member. The proximal movable member comprises a movable ring assembly supported from the handle and adapted for three dimensional motion relative to the handle. A manually rotatable member may be arranged adjacent to the control handle for manually rotating the instrument shaft and working member relative to the control handle. A locking member may be supported from the control handle.
    Type: Application
    Filed: September 19, 2006
    Publication date: December 6, 2007
    Inventors: Woojin Lee, Andres Chamorro
  • Publication number: 20070276430
    Abstract: The surgical instrument includes a distal tool, a rigid or flexible elongated shaft that supports the distal tool, and a proximal handle or control member, where the tool and the handle are coupled to the respective distal and proximal ends of the elongated shaft via distal and proximal bendable motion members. Actuation means extends between said distal and proximal members whereby any deflection of said control handle with respect to said elongated instrument shaft causes a corresponding bending of said distal motion member for control of said working member. A manually rotatable member is arranged adjacent to the control handle for manually rotating the instrument shaft and working member relative to the control handle.
    Type: Application
    Filed: August 16, 2006
    Publication date: November 29, 2007
    Inventors: Woojin Lee, Andres Chamorro
  • Publication number: 20070260115
    Abstract: A medical instrument assembly and robotic medical system are provided. The medical instrument assembly comprises an intravascular catheter having an elongated flexible shaft, and a drivable mechanism to which the flexible catheter shaft is mounted. The drivable mechanism has an actuating element configured for effecting movement of the catheter within at least one degree-of-freedom. The medical instrument assembly further comprises a receiver to which the drivable mechanism is configured for being removably mated. The receiver is configured for operably coupling a drive unit to the actuating element. The robotic medical system comprises the medical instrument assembly, a user interface configured for generating at least one command, a drive unit coupled to the receiver, and an electric controller configured, in response to the command(s), for directing the drive unit to drive the actuating element via the receiver to effect movement of catheter to the degree(s)-of-freedom.
    Type: Application
    Filed: June 14, 2007
    Publication date: November 8, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070255291
    Abstract: A robotic medical system comprises a catheter having an elongated shaft with a plurality of flexible segments spaced apart along the catheter, and a drive unit coupled to the catheter. The catheter may have a plurality of cables respectively terminating at the flexible segments, in which case, the drive unit will be coupled to the plurality of cables. The robotic medical system further comprises a user interface remote from the drive unit and configured for generating at least one command, and an electric controller configured, in response to the command(s), for directing the drive unit to independently bend the flexible segments (e.g., three flexible segments).
    Type: Application
    Filed: June 13, 2007
    Publication date: November 1, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070250073
    Abstract: A medical instrument assembly and robotic medical system are provided. The medical instrument assembly comprises an outer probe having an elongated shaft, an inner probe having an elongated shaft, coaxially disposed within the outer probe shaft, and a driver interface module having a plurality of actuating elements configured to be driven by a drive unit to independently effect movement of each of the outer and inner probes within at least one degree-of-freedom. The robotic medical system may comprise the driver interface module, a user interface configured for generating at least one command, a drive unit coupled to the actuating elements, and an electric controller configured, in response to the command(s), for directing the drive unit to drive the actuating elements to independently effect movement of each of the outer and inner probes to the degree(s)-of-freedom.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 25, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070250097
    Abstract: A robotic medical system and method of performing a medical procedure on a patient are provided. Control signals are conveyed from a remote controller to a drive unit, and a drive unit is operated in accordance with the control signals to advance a first medical instrument within an anatomical vessel (e.g., a blood vessel) of the patient, to advance a second medical instrument outside of the anatomical vessel, and to respectively actuate first and second tools located on the first and second medical instruments, in unison, to perform at least one of a suturing procedure and a sewing procedure on the anatomical vessel. The control signals may be conveyed from the remote controller to the drive unit in response to user commands. The user commands may be movements made at a user interface that correspond to movements of the first and second medical instruments.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 25, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070250074
    Abstract: A medical instrument assembly and robotic medical system are provided. The medical instrument comprises an outer probe having an elongated shaft, an inner probe having an elongated shaft coaxially disposed within the outer probe shaft, and actuating elements. The robotic medical system comprises the medical instrument assembly, a support on which the medical instrument assembly is slidably disposed, a user interface configured for generating at least one command, a drive unit coupled to the actuating elements, and an electric controller configured, in response to the command(s), for directing the drive unit to drive the actuating elements to independently effect movement of the outer and inner probes within at least one degree-of-freedom, and to linearly translate the medical instrument assembly along the support.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 25, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070250072
    Abstract: A method of performing a medical procedure on a patient comprises introducing a medical instrument into the patient via a natural body orifice, conveying control signals from a remote controller to a drive unit, and operating the drive unit in accordance with the control signals to advance the medical instrument to a target region via the natural body orifice, and to actuate a tool on the medical instrument to perform the medical procedure at the target region. In one method, the control signals are conveyed from the remote controller to the drive unit in response to user commands. The user commands may be movements made at a user interface that correspond to movements of the medical instrument.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 25, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070244358
    Abstract: An endoscopic or laparoscopic instrument includes a distal tool, a rigid or flexible elongated shaft that supports the distal tool, and a proximal handle or control member, where the tool and the handle are coupled to the respective distal and proximal ends of the elongated shaft via bendable motion members. The tool and the tool motion member are coupled to the handle and the handle motion member via cables and a push rod in such a way that the movement of the handle with respect to the elongated shaft in any direction is replicated by the tool at the distal end of the shaft. The magnitude of the tool motion with respect to the handle motion may be scaled depending on the size of the handle motion member with respect to that of the tool motion member.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 18, 2007
    Inventor: Woojin Lee
  • Publication number: 20070239120
    Abstract: A method of performing a medical procedure on a patient comprises conveying control signals from a remote controller to a drive unit, intravenously introducing the catheter into a heart of the patient (e.g., via the vena cava into the right atrium), and creating a puncture within a wall between two chambers (e.g., the left and right atria) of the heart. The method further comprises creating a puncture within a wall between two chambers of the heart, and operating the drive unit in accordance with the control signals to advance a working catheter within the guide catheter through the puncture.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 11, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070238924
    Abstract: A method of performing a medical procedure on a patient comprises introducing a medical instrument into a patient (e.g., percutaneously), conveying control signals from a remote controller to a drive unit, and operating the drive unit in accordance with the control signals to actuate the tool located on the medical instrument to secure a stent to an anatomical vessel (e.g., a blood vessel, such as an abdominal aorta). The tool may be a sewing tool that is controlled to stitch the stent to the anatomical vessel. In one method, the control signals are conveyed from the remote controller to the drive unit in response to user commands. The user commands may be movements made at a user interface that correspond to movements of the medical instrument.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070239172
    Abstract: A medical system and an integrated drape assembly for a medical system is provided. The medical system comprises a surgical instrument that carries a distal tool configured for performing a medical procedure on a patient, a drive unit configured for controlling the movement of the surgical instrument within at least one degree-of-freedom, a coupling mechanism through which the surgical instrument is operably coupled to the drive unit, and an integrated drape assembly having a drape insert through which the coupling mechanism is coupled to the surgical instrument, a sterile drape covering the coupling mechanism. The drape assembly may comprise a coupling element mounted within the drape insert. The coupling element may be configured for coupling a driver element of the medical system to a driven element of the medical system.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Woojin Lee, Michael Mazzuca, Michael Gorhan
  • Publication number: 20070238925
    Abstract: A medical system and surgical instrument adapter are provided. The medical system comprises a surgical instrument carrying a distal tool configured for performing a medical procedure on a patient, an adapter having a clam-shell configuration configured for removably receiving a proximal end of the surgical instrument, and a drive unit configured for being coupled to the adapter to control the movement of the surgical instrument within at least one degree-of-freedom. The surgical instrument adapter may comprise a base portion configured for receiving a proximal end of the surgical instrument, and a clam-shell that pivots relative to the base portion between a first position that encloses the proximal end of the surgical instrument within the base portion and a second position that allows the proximal end of the surgical instrument to be removed from the base portion.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicant: HANSEN MEDICAL, INC
    Inventors: Woojin Lee, Michael Mazzuca, Michael Gorhan
  • Publication number: 20070239178
    Abstract: A medical system and method of performing a medical procedure on a patient are provided. An electrical controller directs an electromechanical driver to bend an elongated member back upon itself to place a active work element in a working relationship with an intermediate work element, and to respectively control the active work element and intermediate work element, in unison, to perform a medical procedure. The electrical controller may be remote from the electromechanical driver, and may be coupled to the electromechanical driver via external cabling. The electrical controller may have a user interface for receiving commands from a user. In this case, the movements made at the user interface correspond to movements of the medical instrument.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070239186
    Abstract: A method of performing a medical procedure (e.g., a cardiac bypass procedure) on a patient comprises introducing at least one medical instrument into a patient (e.g., percutaneously), conveying control signals from a remote controller to a drive unit, and operating the drive unit in accordance with the control signals to actuate at least one tool respectively located on the medical instrument(s) to transversely secure a first anatomical vessel (e.g., a blood vessel) to a sidewall of a second anatomical vessel (e.g., another blood vessel). In one method, the control signals are conveyed from the remote controller to the drive unit in response to user commands. The user commands may be movements made at a user interface that correspond to movements of the medical instrument(s).
    Type: Application
    Filed: June 13, 2007
    Publication date: October 11, 2007
    Applicant: HANSEN MEDICAL, INC.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070239170
    Abstract: A medical probe and medical system are provided. The medical probe comprises an elongated shaft, a plurality of electromagnetic elements spaced along the elongated shaft, and a plurality of wires extending through the elongated shaft and configured for energizing the electromagnetic elements that actuate a controlled bending of the elongated shaft. The medical system may comprise the medical probe and a controller configured for energizing the electromagnetic elements via the wires to actuate the controlled bending of the elongated shaft. The medical system may optionally comprise a user interface configured for conveying commands to the controller, in which case, the controller will be configured for energizing the electromagnetic elements via the wires to actuate a controlled bending of the elongated shaft in response to the commands.
    Type: Application
    Filed: June 14, 2007
    Publication date: October 11, 2007
    Inventors: David Brock, Woojin Lee, Gary Rogers, Barry Weitzner
  • Publication number: 20070232855
    Abstract: A method of performing a medical procedure on a patient comprises conveying control signals from a remote controller to a drive unit, intraluminally introducing a first medical instrument within the patient, extraluminally introducing a second medical instrument within the patient, and operating the drive unit in accordance with the control signals to actuate a first tool on the first medical instrument and a second tool on the second medical instrument, in unison, to perform the medical procedure at a target region within an anatomical vessel. In one method, the control signals are conveyed from the remote controller to the drive unit in response to user commands, which may be movements made at a user interface that correspond to movements of the medical instrument.
    Type: Application
    Filed: June 13, 2007
    Publication date: October 4, 2007
    Applicant: Hansen Medical, Inc.
    Inventors: Barry Weitzner, Gary Rogers, Albert Solbjor, Dwight Meglan, Robert Ailinger, David Brock, Woojin Lee, David Driscoll
  • Publication number: 20070154792
    Abstract: A conductive plate connects the electrode terminals between batteries of a battery pack and prevents a change in thickness of the battery pack due to swelling of a battery during charging by forming an expansion unit in a conductive plate electrically connecting batteries of the battery pack in which at least two batteries are stacked.
    Type: Application
    Filed: December 21, 2006
    Publication date: July 5, 2007
    Inventors: Sangdo Heo, Woojin Lee
  • Patent number: 7214230
    Abstract: A remote control flexible instrument system, employing a shaft which supports a tool, is described in which the has proximal and distal ends with at least a portion thereof extending through a lumen of the human body so as to locate the shaft at an internal target site. A master station including an input device provides control of the instrument situated at a slave station. The master station can control at least one degree-of-freedom of the flexible instrument. A controller intercouples the master and slave stations and is operated in accordance with a computer algorithm that receives a command from the input device for controlling at least one degree-of-freedom of the catheter so as to respond in accordance with action at the input device. The flexible instrument further comprises a controlled flexible segment along the shaft, for controlled bending at the flexible segment to guide the shaft and to dispose the tool at an operative site.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: May 8, 2007
    Assignee: Hansen Medical, Inc.
    Inventors: David L. Brock, Woojin Lee, Gary Rogers, Barry Weitzner, Robert W. Cunningham