Patents by Inventor Christopher A. Rowland

Christopher A. Rowland 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: 20100084577
    Abstract: Techniques for ion implantation of molecular ions are disclosed. In one particular exemplary embodiment, the techniques may be realized as an apparatus for ion implantation comprising an ion implanter for implanting a target material with a molecular ion at a predetermined temperature to improve at least one of strain and amorphization of the target material, wherein the molecular ion is generated in-situ within an ion source.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 8, 2010
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Christopher R. Hatem, Christopher A. Rowland
  • Patent number: 7645254
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: January 12, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Publication number: 20090231597
    Abstract: A sheet measurement apparatus has a sheet disposed in a melt. The measurement system uses a beam to determine a dimension of the sheet. This dimension may be, for example, height or width. The beam may be, for example, collimated light, a laser, x-rays, or gamma rays. The production of the sheet may be altered based on the measurements.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 17, 2009
    Applicant: VARIAN SEMICONDUTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Christopher A. ROWLAND, Peter L. Kellerman, Frank Sinclair, Julian G. Blake, Nicholas P.T. Bateman
  • Publication number: 20060258955
    Abstract: An imaging endoscope comprising a shaft having a proximal end adapted to be secured to a handle, and a distal end having a biopsy forceps disposed therein. The biopsy forceps includes one or more end-effector elements that are actuated with a control cable that may be connected to the handle. The endoscope shaft includes a biopsy sample lumen that is configured to receive a biopsy sample obtained from the forceps assembly. A sample collection apparatus is attached to the handle to capture multiple biopsy samples. In some embodiments, the endoscope is a single-use endoscope.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 16, 2006
    Inventors: David Hoffman, Christopher Rowland
  • Publication number: 20060259041
    Abstract: A variceal banding endoscope includes an elongated shaft having a distal end and a proximal end that is removably connected to a control unit. The endoscope includes a variceal banding apparatus fixedly attached to the distal end of the endoscope and capable of receiving a plurality of ligation bands. A trigger cable extends from the proximal end to the distal end of the shaft and is digitally actuated by an actuator in the control unit or handle of the scope in response to a user input device.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 16, 2006
    Inventors: David Hoffman, Christopher Rowland
  • Publication number: 20060173244
    Abstract: In one aspect, the present invention is a system for preparing a patient for an endoscopy procedure, such as a colonoscopy. The endoscopic preparation and examination system includes an endoscope, a source of irrigation and aspiration, and a control unit. The endoscope includes an elongated flexible shaft with a distal tip and a proximal end, at least one aspiration lumen and at least one irrigation lumen. A plurality of irrigation ports are functionally connected to the at least one irrigation lumen and a plurality of aspiration ports are functionally connected to the at least one aspiration lumen. In another aspect, the invention provides a method of clearing an obstructed view in a patient prior to, or during an endoscopic examination.
    Type: Application
    Filed: September 30, 2005
    Publication date: August 3, 2006
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Dennis Boulais, Michael Banik, Vincent Turturro, Christopher Rowland, David Hoffman, John O'Connor, Lucien Couvillon, Luis Maseda, Donald Hovey, Mark Adams, William Shaw, Laurence Brenner
  • Publication number: 20060106285
    Abstract: A fluid delivery system for use with an endoscope. Certain embodiments of the invention include a single, large fluid source and pump installed upon an operator console, in combination with a small fluid reservoir and pump installed within a proximal connector of the imaging endoscope, multiple fluid sources that feed a common fluid channel that are pressurized by a common pump, multiple fluid sources that feed dedicated fluid channels that are pressurized by dedicated pumps, and a small fluid reservoir and pump installed within a handheld manual controller of the imaging endoscope. The fluid delivery endoscopic systems of the present invention provide the user with the flexibility of changing fluids either in advance of a procedure or on-the-fly as needed, instead of relying on fixed fluid sources only.
    Type: Application
    Filed: September 29, 2005
    Publication date: May 18, 2006
    Applicant: Boston Scientific Scimed, Inc.
    Inventors: Dennis Boulais, Michael Banik, Vincent Turturro, Christopher Rowland, David Hoffman, John O'Connor, Eric Litscher
  • Publication number: 20060106281
    Abstract: A multi-functional endoscopic system, for use in electrosurgical applications, that includes an imaging endoscope that may be used in combination with various electrosurgical devices, all of which are sufficiently inexpensive to manufacture, such that the endoscope and electrosurgical devices are considered single use, disposable items. The multi-functional endoscopic system of the present invention is suitable for use with a variety of common electrosurgical devices that require electrical/electronic support in order to function. The electrical/electronic support for these electrosurgical devices (e.g., an electrosurgical generator and associated controls) is integrated with the operator console of the imaging endoscope of the multi-functional endoscopic system of the present invention, rather than provided as a separate device.
    Type: Application
    Filed: September 29, 2005
    Publication date: May 18, 2006
    Inventors: Dennis Boulais, Michael Banik, Vincent Turturro, Christopher Rowland, David Hoffman, John O'Connor
  • Publication number: 20040243056
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Application
    Filed: April 13, 2004
    Publication date: December 2, 2004
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 6743217
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: June 1, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 6547758
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 15, 2003
    Assignee: Scimed Life Systems, Inc.
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Publication number: 20020193788
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Application
    Filed: August 16, 2002
    Publication date: December 19, 2002
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 6443924
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: September 3, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 6436056
    Abstract: Implements, particularly medical instruments, formed at least in part of elongated polymer members, exhibit high torque fidelity after processing with tension, heat, and twisting. The processing orients the polymer in generally helical paths so that torque imposed at the proximal end can be transmitted to the distal end without substantial whipping, even if the implement follows a long and tortuous pathway. Applications include medical guidewires, catheters, and driveshafts.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: August 20, 2002
    Assignee: Boston Scientific Corporation
    Inventors: James C. Wang, Albert Chin, James B. Daigle, Douglas J. Daniels, Richard M. Demello, John F. Hartnett, Robert E. Reid, Christopher A. Rowland, Charles Warich, Thomas A. Svatek
  • Patent number: 5951494
    Abstract: Implements, particularly medical instruments, formed at least in part of elongated polymer members, exhibit high torque fidelity after processing with tension, heat, and twisting. The processing orients the polymer in generally helical paths so that torque imposed at the proximal end can be transmitted to the distal end without substantial whipping, even if the implement follows a long and tortuous pathway. Applications include medical guidewires, catheters, and driveshafts.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: September 14, 1999
    Assignee: Boston Scientific Corporation
    Inventors: James C. Wang, Albert Chin, James B. Daigle, Douglas J. Daniels, Richard M. Demello, John F. Hartnett, Robert E. Reid, Christopher A. Rowland, Charles Warich, Thomas A. Svatek
  • Patent number: 5868698
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: February 9, 1999
    Assignee: Boston Scientific Corporation
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 5683362
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: November 4, 1997
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 5643199
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: July 1, 1997
    Assignee: Boston Scientific Corporation
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton
  • Patent number: 5578018
    Abstract: Apparatus for use in the diagnosis and treatment of strictures in a biliary duct, urinary tract or pancreatic tract. The apparatus includes a dual lumen catheter device. One lumen size is sized to accommodate a guidewire. A second, parallel lumen has a non-circular cross-section and carries a cytology brush at one end that couples through an operator to a manipulator at another end. The cytology brush has an effective diameter that is greater than the diameter of the catheter device. Brush cytology samples are obtained without removing the guidewire from a stricture and without introducing any relative motion between the guidewire and the catheter. As the cytology brush is retracted into the non-circular lumen, its bristles compact around the operator for storage within the lumen. A predetermined arrangement of markers at the distal end of the catheter facilitates the measurement of stricture length by direct endoscopic visualization.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: November 26, 1996
    Assignee: Boston Scientific Corporation
    Inventors: Christopher A. Rowland, M. Joshua Tolkoff, Ella Zaslavsky
  • Patent number: 5547469
    Abstract: Catheter apparatus for performing diagnostic and therapeutic modalities in the biliary tree includes a catheter with multiple lumens. A first lumen is adapted to receive a guidewire and can serve as a transport lumen for contrast agent. A second lumen carries a cutting wire for performing a sphincterotomy. A third lumen can be used as an inflation lumen for a distally located balloon. Expansion of the balloon occludes a portion of the biliary tree and allows the catheter to sweep any gallstones through the sphincter of Oddi into the duodenum.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: August 20, 1996
    Assignee: Boston Scientific Corporation
    Inventors: Christopher A. Rowland, Michael G. Vergano, Bryan P. Eddy, Peter B. Cotton