Patents by Inventor Colin P. Hart

Colin P. Hart 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: 7722638
    Abstract: Devices and methods for delivery or retrieval of a distal protection device. A distal protection assembly may comprise an outer sheath, an inner shaft disposed within a lumen of the outer sheath, a distal protection device disposed at a distal end of the inner shaft; and a manifold coupled to a proximal end of the outer sheath that is adapted for moving the outer sheath relative to the inner shaft.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 25, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Thomas Deyette, Jr., Eric Houde, Scott A. Diamond, Mark H. VanDiver, Colin P. Hart, Glenn H. Wadleigh
  • Publication number: 20090204078
    Abstract: Disclosed is a manifold including a housing having multiple ports and multiple bores networking the ports. An actuatable valve, such as a slidable valve, including one or more bores may be positioned in the housing such that the valve is actuatable between a first position and a second position. Actuation of the valve may selectively establish a desired fluid pathway through the manifold. One or more seals may be interposed between the valve and the housing. The seal includes at least a first sealing element, a second sealing element, and a land extending between the sealing elements. The sealing elements are configured to provide a fluid tight seal between the housing and the valve when the valve is in either the first or second position, and the land is configured to provide a fluid tight seal between the housing and the valve when the valve is in an intermediate position.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 13, 2009
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: James J. Mitchell, Mark H. Van Diver, Scott A. Diamond, Colin P. Hart, Waleed El Sayyid
  • Patent number: 7476236
    Abstract: Embolic protection sheath and method of using the same. In some embodiments, the present invention includes an elongate shaft, an embolic protection filter coupled to the shaft, and a sheath disposed over at least a portion of the shaft.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: January 13, 2009
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian J. Lowe, Robert L. Cassell, Andrew Forsberg, Colin P. Hart, Thomas Deyette, Jr.
  • Patent number: 7326224
    Abstract: The present invention relates generally to the field of embolic protection and, more particularly, to systems for locking a shaft relative to a hub assembly. In addition, a method for securing a shaft relative to a hub assembly is disclosed.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 5, 2008
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Eric Houde, Colin P. Hart, Mark H. Van Diver, Thomas Deyette, Jr., Scott A. Diamond
  • Patent number: 7267667
    Abstract: A fluid injection system is disclosed The system is adapted to employ first and second injectors which may sequentially, or simultaneously, inject first and second fluids into a patient via a catheter. The first and second injectors may be power actuated. The actuation of the injectors may be controlled via a controller of the system. The user may be provided with an operator interface module to enable the control of the system to be affected during operation. A separate waste line may be provided to drain the system effectively and efficiently. A pressure sensor may be provided proximate the catheter to reduce pressure signal wave dampening and fluid waste.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: September 11, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Eric Houde, Mark VanDiver, Colin P. Hart, Valerie M. Castora, Kathryn M. Albert
  • Patent number: 7207971
    Abstract: A pressure relief mechanism is incorporated into a modified syringe-type inflation device that may be coupled to a balloon catheter for inflating and deflating the balloon. An engagement mechanism selectively engages and disengages from a threaded shaft for advancing or withdrawing a plunger placed in slidable, yet sealing fit within a cylindrical chamber. In a first engaging position, the threaded shaft may be forcibly advanced or withdrawn in the cylindrical chamber, while in a second disengaged position, the plunger may be quickly pulled back.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: April 24, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Colin P. Hart, James L. Fehl, Glenn H. Wadleigh, Ronald West
  • Patent number: 7172572
    Abstract: A number of devices are illustrated for providing a manifold that can simply and selectively couple a number of different therapeutic and diagnostic elements to a catheter or other medical device. Some examples include devices having sliding actuators, rotary actuators, button actuators, or combinations thereof, for easily changing the valve scheme and fluid pathways within a manifold.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: February 6, 2007
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Scott A. Diamond, Colin P. Hart, James Mitchell, Thomas Deyette, Jr., Richard M. Garlapow, Mark H. Van Diver, William A. Wetherbee
  • Patent number: 7097690
    Abstract: Medical devices for removing gasses, such as gas bubbles and/or dissolved gasses, from a liquid to be delivered to a patient, and methods of use and making of such devices. In at least some embodiments, a gas permeable membrane material is used in the construction of the gas removal devices. In some embodiments, layers of gas permeable membrane material are used to construct a filter structure for removing gas from the liquid. In other embodiments, hollow tubes and/or fibers of the gas permeable membrane material are used to construct a filter structure for removing gas from the liquid. The gas removal devices may be used in any of a broad variety of liquid delivery systems and/or configurations.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: August 29, 2006
    Assignee: Scimed Life Systems, Inc.
    Inventors: Kathryn M. Usher, George R. Foster, Edward M. Kolvek, Andrew C. Harvey, Malcolm E. Taylor, Thomas Williams Lovell, Colin P. Hart, William Edmund Girzone
  • Patent number: 7044933
    Abstract: A fluid injection apparatus and method of injecting fluid are disclosed. The apparatus includes a control syringe electrically connected to a power-actuated syringe. A sensor is provided proximate the control syringe to monitor the position of the plunger therein, with a signal representative of plunger position then being communicated to a processor for calculation of a corresponding control signal. The control signal is received by an actuator of the power-actuated syringe to move the plunger of the power-actuated syringe in a manner related to movement of the control syringe. The control syringe is provided with a feedback device to provide the operator with an indication as to the pressure of the fluid being injected into a patient.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: May 16, 2006
    Assignee: Scimed Life Systems, Inc.
    Inventors: Mark H. VanDiver, Colin P. Hart, Kevin C. Martin, Thomas R. Delcourt, Eric Houde
  • Patent number: 6986742
    Abstract: A pressure activated valve for a three-way connection between a catheter, an injector and a pressure transducer is disclosed. The valve includes a body that has an inlet for connection to an injector, an outlet for connection to a catheter and a secondary connection for connection to a pressure transducer. The body also includes a seal seat disposed between the secondary connection in both the inlet and the outlet. The body is flexibly connected to a plug seal. The plug seal is disposed between the seal seat in both the inlet and the outlet. The plug seal is movable between an open position spaced apart from the seal seat and biased towards the inlet and the outlet and a closed position against the seal seat thereby isolating the secondary connection from both the inlet and the outlet.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: January 17, 2006
    Assignee: Boston Scientific SciMed, Inc.
    Inventors: Colin P. Hart, Ryan M. Leclair, Kathryn M. Albert, Thomas Deyette, Jr., Mark H. VanDiver
  • Patent number: 6958051
    Abstract: The present invention is drawn to a valve control accessory for use with a dual balloon stent delivery catheter. The accessory device includes a bifurcated fluid line adapted to connect to an inflation device using a proximal luer connector. Additional luer connectors at the distal ends of the main fluid line and branched fluid line are engaged to connect to the proximal ends of a bifurcated catheter shaft, allowing the fluid lines to be in fluid communication with a parent and sidebranch balloon respectively. In one embodiment, stopcocks are formed in both the main and sidebranch fluid lines to allow independent or simultaneous expansion of each balloon. A pressure indicator may be placed on either fluid line to indicate which line is under pressure.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: October 25, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Colin P. Hart, Thomas Deyette, Jr., Glenn H. Wadleigh
  • Patent number: 6896002
    Abstract: A pressure activated valve for a three-way connection between a catheter, an injector and a pressure transducer is disclosed. The valve includes a body that has an inlet for connection to an injector, an outlet for connection to a catheter and a secondary connection for connection to a pressure transducer. The body also includes a seal seat disposed between the secondary connection in both the inlet and the outlet. The body is flexibly connected to a plug seal. The plug seal is disposed between the seal seat in both the inlet and the outlet. The plug seal is movable between an open position spaced apart from the seal seat and biased towards the inlet and the outlet and a closed position against the seal seat thereby isolating the secondary connection from both the inlet and the outlet.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: May 24, 2005
    Assignee: SciMed Life Systems, Inc
    Inventors: Colin P. Hart, Ryan M. Leclair, Kathryn M. Albert, Thomas Deyette, Jr., Mark H. Vandiver
  • Publication number: 20040167401
    Abstract: An apparatus and method for manually injecting fluid into a patient with improved contrast visualization are disclosed. The apparatus includes a syringe having a cylinder in which a plunger is reciprocatingly mounted. The syringe is connected to a manifold which itself is connected to a source of radiopaque contrast. Retraction of the plunger within the cylinder draws contrast into the cylinder, and depression of the plunger forces the contrast through the manifold and into a patient through a catheter. In order to increase the speed of injection and thus the visualization of the contrast, an improved visualization device is provided which may be provided in the form of a heater or, alternatively, in the form of an expandible catheter. The heater may be positioned anywhere within the apparatus to elevate the temperature of the contrast material, which in turn reduces its viscosity and thereby increases the speed with which fluid may be injected.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 26, 2004
    Applicant: SCIMED LIFE SYSTEMS, INC.
    Inventors: Colin P. Hart, Valerie M. Castora
  • Publication number: 20040158277
    Abstract: Embolic protection sheath and method of using the same. In some embodiments, the present invention includes an elongate shaft, an embolic protection filter coupled to the shaft, and a sheath disposed over at least a portion of the shaft.
    Type: Application
    Filed: December 16, 2003
    Publication date: August 12, 2004
    Applicant: SCIMED LIFE SYSTEMS, INC.
    Inventors: Brian J. Lowe, Robert L. Cassell, Andrew Forsberg, Colin P. Hart, Thomas Deyette
  • Publication number: 20040122361
    Abstract: A pressure relief mechanism is incorporated into a modified syringe-type inflation device that may be coupled to a balloon catheter for inflating and deflating the balloon. An engagement mechanism selectively engages and disengages from a threaded shaft for advancing or withdrawing a plunger placed in slidable, yet sealing fit within a cylindrical chamber. In a first engaging position, the threaded shaft may be forcibly advanced or withdrawn in the cylindrical chamber, while in a second disengaged position, the plunger may be quickly pulled back.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: SciMed Life Systems, Inc.
    Inventors: Colin P. Hart, James L. Fehl, Glenn H. Wadleigh, Ronald West
  • Patent number: 6743210
    Abstract: The present invention generally relates to a medical device and procedure for accurately positioning a catheter across a desired region within a patient's vasculature. In particular, the present invention provides a hub assembly unit that allows a physician to precisely position a stent within a vessel utilizing a stent delivery catheter. The hub assembly unit includes a fine adjustment mechanism. The fine adjustment mechanism extends or contracts the length of the hub assembly unit in controlled incremental units. These controlled fine displacements are then translated directly to the stent delivery or balloon dilation catheter.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: June 1, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Colin P. Hart, Kevin C. Martin, Ryan M. LeClair, Mark H. Van Diver, Glenn H. Wadleigh, Bill A. Wetherbee
  • Patent number: 6699232
    Abstract: An apparatus and method for manually injecting fluid into a patient with improved contrast visualization are disclosed. The apparatus includes a syringe having a cylinder in which a plunger is reciprocatingly mounted. The syringe is connected to a manifold which itself is connected to a source of radiopaque contrast. Retraction of the plunger within the cylinder draws contrast into the cylinder, and depression of the plunger forces the contrast through the manifold and into a patient through a catheter. In order to increase the speed of injection and thus the visualization of the contrast, an improved visualization device is provided which may be provided in the form of a heater or, alternatively, in the form of an expandible catheter. The heater may be positioned anywhere within the apparatus to elevate the temperature of the contrast material, which in turn reduces its viscosity and thereby increases the speed with which fluid may be injected.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: March 2, 2004
    Assignee: SciMed Life Systems, Inc.
    Inventors: Colin P. Hart, Valerie M. Castora
  • Publication number: 20040010229
    Abstract: A fluid injection system is disclosed. The system is adapted to employ first and second injectors which may sequentially, or simultaneously, inject first and second fluids into a patient via a catheter. The first and second injectors may be power actuated. The actuation of the injectors may be controlled via a controller of the system. The user may be provided with an operator interface module to enable the control of the system to be affected during operation. A separate waste line may be provided to drain the system effectively and efficiently. A pressure sensor may be provided proximate the catheter to reduce pressure signal wave dampening and fluid waste.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Eric Houde, Mark VanDiver, Colin P. Hart, Valerie M. Castora, Kathryn M. Albert
  • Publication number: 20030229295
    Abstract: The present invention relates generally to the field of embolic protection and, more particularly, to systems for locking a shaft relative to a hub assembly. In addition, a method for securing a shaft relative to a hub assembly is disclosed.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Applicant: SCIMED LIFE SYSTEMS, INC.
    Inventors: Eric Houde, Colin P. Hart, Mark H. Van Diver, Thomas Deyette
  • Publication number: 20030181850
    Abstract: A number of devices are illustrated for providing a manifold that can simply and selectively couple a number of different therapeutic and diagnostic elements to a catheter or other medical device. Some examples include devices having sliding actuators, rotary actuators, button actuators, or combinations thereof, for easily changing the valve scheme and fluid pathways within a manifold.
    Type: Application
    Filed: February 26, 2003
    Publication date: September 25, 2003
    Inventors: Scott A. Diamond, Colin P. Hart, James Mitchell, Thomas Deyette, Richard M. Garlapow, Mark H. Van Diver, William A. Wetherbee