Patents by Inventor Yue-Teh Jang

Yue-Teh Jang 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: 20180318114
    Abstract: The invention is devices and methods to treat benign prostatic hyperplasia (BPH) and associated lower urinary tract symptoms infections (LUTS). The devices are intra-urethral implants placed in a patient in need thereof by minimally invasive procedures, preferably under local anesthesia in an office environment. The devices are sized and designed for atraumatic insertion and expansion within the urethra to engage and retract enlarged prostatic tissue proximate to the urethra that is leading to adverse symptoms associated with BPH. The methods include steps to deploy the implant devices of the invention using a delivery system of the invention and at target prostatic tissue that is visualized during the procedure and yields a reduction in the symptoms of BPH.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 8, 2018
    Applicant: Prodeon, Inc.
    Inventors: Mark Huang, Kenneth Chih-Ping Chang, Jimmy Jen, Yue-Teh Jang, Thomas Hsu, Senzan Hsu, Kondapavulur T. Venkateswara-Rao
  • Patent number: 8152782
    Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 10, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
  • Publication number: 20110224716
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Application
    Filed: May 25, 2011
    Publication date: September 15, 2011
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
  • Publication number: 20100222736
    Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.
    Type: Application
    Filed: May 20, 2010
    Publication date: September 2, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
  • Publication number: 20100160955
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
  • Patent number: 7731683
    Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: June 8, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Yue-Teh Jang, Ross S. Tsugita, Bruce S. Addis, Tracy D. Maahs, Jean C. Chang
  • Patent number: 7691123
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 6, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
  • Publication number: 20060282153
    Abstract: A catheter system has a balloon angioplasty device disposed about a common lumen near its distal end. The balloon catheter is pre-fitted with a stent which is deployed when the balloon is inflated. The common lumen is in communication with multiple lumens within a proximal region of the catheter body to allow for positioning of the catheter over a movable guide wire and convenient delivery of imaging or interventional devices to a desired region of a body passageway being treated. The procedure for stent deployment optionally includes steps of imaging a lumen by ultrasound before and after stent deployment to identify the site at which a stent is needed, to confirm that the stent is being and has been deployed at a longitudinal position which does not overlap a branched segment of the body passageway, and to ensure that the stent has been radially opened to an optimum diameter.
    Type: Application
    Filed: May 15, 2006
    Publication date: December 14, 2006
    Inventor: Yue-Teh Jang
  • Publication number: 20060129180
    Abstract: An apparatus suitable for filtering emboli in an open surgical procedure. The apparatus comprises an elongated member having a distal region and a support hoop attached to the distal region. A blood permeable sac is affixed to the support hoop so that the support hoop forms a distally-facing mouth of the blood permeable sac. A guidewire is slideably attached to the elongated member. A delivery sheath is provided having a cavity for accepting the elongated member, support hoop and blood permeable sac, and a lumen extending through the cavity to permit the guidewire to pass therethrough. Methods of use are also described.
    Type: Application
    Filed: January 2, 2004
    Publication date: June 15, 2006
    Inventors: Ross Tsugita, Tracy Maahs, Yue-Teh Jang
  • Patent number: 7044964
    Abstract: A catheter system has a balloon angioplasty device disposed about a common lumen near its distal end. The balloon catheter is pre-fitted with a stent which is deployed when the balloon is inflated. The common lumen is in communication with multiple lumens within a proximal region of the catheter body to allow for positioning of the catheter over a movable guide wire and convenient delivery of imaging or interventional devices to a desired region of a body passageway being treated. The procedure for stent deployment optionally includes steps of imaging a lumen by ultrasound before and after stent deployment to identify the site at which a stent is needed, to confirm that the stent is being and has been deployed at a longitudinal position which does not overlap a branched segment of the body passageway, and to ensure that the stent has been radially opened to an optimum diameter.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: May 16, 2006
    Assignee: Cardiovascular Imaging Systems, Inc.
    Inventors: Yue-Teh Jang, Stephen M. Salmon, David A. White, Rizza A. Garcia
  • Publication number: 20060041304
    Abstract: A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.
    Type: Application
    Filed: September 6, 2005
    Publication date: February 23, 2006
    Inventors: Yue-Teh Jang, Ross Tsugita, Bruce Addis, Tracy Maahs, Jean Chang
  • Publication number: 20060015140
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Application
    Filed: August 18, 2005
    Publication date: January 19, 2006
    Inventors: Ross Tsugita, Tracy Maahs, Yue-Teh Jang
  • Patent number: 6964673
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: November 15, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang
  • Publication number: 20040267239
    Abstract: An intravascular catheter system has a balloon angioplasty device disposed about a common lumen near its distal end. The common lumen is in communication with multiple lumens within a proximal region of the catheter body to allow for positioning of the catheter over a movable guide wire and convenient delivery of imaging or interventional devices to a desired region of the blood vessel being treated.
    Type: Application
    Filed: February 13, 2004
    Publication date: December 30, 2004
    Applicant: Cardiovascular Imaging Systems, Inc.
    Inventor: Yue-Teh Jang
  • Patent number: 6730037
    Abstract: An ultrasonic imaging catheter comprises a catheter body having a distal region and proximal region. The distal region has a reduced cross-sectional area compared to that of the proximal region, and the proximal region includes at least two lumens therethrough for accommodating a movable guidewire and a rotatable working element, respectively. The catheter body may be inserted over the movable guidewire, with the guidewire passing through a lumen in the distal region and the guidewire lumen in the proximal region. After positioning the catheter body, the guidewire can be retracted from the distal region and into the proximal region, leaving the lumen in the distal region available for the rotatable working element. Such a construction allows over-the-wire imaging of the catheter while minimizing the width of the catheter in the dital region which remains available for placement of the working element.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: May 4, 2004
    Assignee: Cardiovascular Imaging Systems, Inc.
    Inventor: Yue-Teh Jang
  • Patent number: 6723085
    Abstract: A filter comprising a porous material is arranged in a generally conical shape having an expandable base and a vertex. An elongate member having a proximal end and a distal end is attached to the expandable base of the porous material at a first circumferential location of the expandable base and extends perpendicularly from a central axis of the filter. An aspiration tube, for removing embolic material under vacuum, communicates with an area at the first circumferential location of the expandable base. Methods of using the filter and occluding devices for protecting a patient from embolization during cardiovascular procedures are described.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: April 20, 2004
    Assignee: Edwards Lifesciences Corporation
    Inventors: Yue-Teh Jang, Richard O. Murphy, Roman Turovskiy
  • Patent number: 6712783
    Abstract: An intravascular catheter system has a balloon angioplasty device disposed about a common lumen near its distal end. The common lumen is in communication with multiple lumens within a proximal region of the catheter body to allow for positioning of the catheter over a movable guide wire and convenient delivery of imaging or interventional devices to a desired region of the blood vessel being treated.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: March 30, 2004
    Assignee: Cardiovascular Imaging, Inc.
    Inventor: Yue-Teh Jang
  • Patent number: 6692512
    Abstract: A percutaneous filtration catheter used to entrap emboli from a patient's aorta and heart during cardiac surgery. The catheter has an elongate member, a proximal end, and a distal end. A balloon occluder is mounted on the distal end of the elongate member and an expandable filter is mounted on the elongate member distal the balloon occluder. Methods for using the devices are also disclosed herein.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: February 17, 2004
    Assignee: Edwards Lifesciences Corporation
    Inventor: Yue-Teh Jang
  • Patent number: 6679872
    Abstract: Modular systems comprising a cannula and at least one clip-on access port adjacent to a distal end of the cannula to provide insertion of one or more therapeutic or diagnostic devices into a vessel or cardiac tissue through a single incision site. The access port can be removably attached to a distal region of the cannula in a fixed orientation or in any desired orientation. The devices can be operated in combination or independently. The systems can be employed to provide multiple therapies, including blood perfusion, filtration, aspiration, vessel occlusion, atherectomy, and endoscopic devices. Methods of using the system for vessel cannulation are also disclosed herein.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: January 20, 2004
    Assignee: Edwards Lifesciences Corporation
    Inventors: Roman Turovskiy, Yue-Teh Jang
  • Patent number: 6676682
    Abstract: The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen of the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen of the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region of the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: January 13, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Ross S. Tsugita, Tracy D. Maahs, Yue-Teh Jang