Patents Assigned to Ep Technologies
  • Publication number: 20130272929
    Abstract: A sanitization station including a fluid source and one or more plasma generators for generating non-thermal plasma is disclosed. One or more nozzles spray a mist or stream of fluid through plasma generated by the one or more plasma generators to activate the fluid. The fluid is then used to sterilize an object. Another sanitization station includes a chamber for holding a fluid and a plasma generator in fluid communication with the chamber for generating plasma. A circulating source moves the fluid in the chamber past plasma generated by the plasma generator to activate the fluid and one or more spray nozzles coat the surface of an object with fluid that is activated by plasma.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 17, 2013
    Applicant: EP Technologies LLC
    Inventors: Keith Allen Pelfrey, Robert Gray, Nick E. Ciaverella, John Peluso, Matt Archer, Jackson W. Wegelin
  • Patent number: 8114073
    Abstract: A catheter assembly comprises a first branch body having a first axis, a second branch body extending in a non-parallel relationship with respect to the first axis, and at least one electrode carried by the second branch body. In use, the first branch body can be located within a pulmonary vein within the left atrium, while the electrode carried by the second branch body is located in contact with endocardial tissue outside the pulmonary vein. Ablation energy can be transmitted from the electrode to contacted endocardial tissue while the first branch body is located within the pulmonary vein.
    Type: Grant
    Filed: November 6, 2010
    Date of Patent: February 14, 2012
    Assignee: EP Technologies, Inc.
    Inventors: James G Whayne, Sidney D Fleischman, Russell B Thompson, David K Swanson, Yi Yang
  • Patent number: 8091619
    Abstract: The invention relates to a heat exchanger with an indentation pattern, and specifically a heat exchanger with heat exchanger plates (1) provided with a special pattern instead of the traditional herringbone pattern. The pattern comprises at least one section with bulges (2) and hollows (3), said bulges and hollows having flat tops and bottoms intended to be placed against respective hollows and bulges of a heat exchanger plate of a corresponding design. The surface area of said tops and bottoms is such in relation to the distance between the tops and bottoms that channels (6) for the flow of a medium are formed between the bulges.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: January 10, 2012
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Publication number: 20110180247
    Abstract: The invention relates to a plate heat exchanger (9), comprising a plurality of heat exchanger plates (1, 13), comprising at least one section showing indentations (2, 3, 14, 15), intended to be placed against corresponding indentations (2, 3, 14, 15) of a heat exchanger plate (1, 13) of a corresponding design. At least a first type of indentations (2, 14) and at least a second type of indentations (3, 15) is provided, wherein said first type of indentations (2, 14) and said second type of indentations (3, 15) are of a different design.
    Type: Application
    Filed: November 19, 2010
    Publication date: July 28, 2011
    Applicant: EP Technology AB
    Inventor: Lars Persson
  • Publication number: 20110088882
    Abstract: A plate heat exchanger (10) of the double plate type having a plurality of stacked plate elements, each comprising a first plate (1) and a second plate (9). At least the first plate (1) is provided with a surface pattern with a plurality of dimples (5) defining a first distance to a plate plane (8), and a plurality of canal parts (6) defining a second, smaller, distance to the plate plane (8). The first plate (1) and the second plate (9) are joined in such a manner that the protruding areas (5, 6) in combination form flow paths (11) being fluidly connected to rim portions (3) of the plates (1, 9). The heat exchanger (10) provides efficient leakage detection via the flow paths (11) while ensuring a good thermal contact between heat exchanging fluids through the plates (1, 9) via flat portions (7) between the protruding parts (5, 6).
    Type: Application
    Filed: March 12, 2009
    Publication date: April 21, 2011
    Applicants: Danfoss A/S, EP Technology AB
    Inventor: Lars Persson
  • Patent number: 7857822
    Abstract: Devices for insertion into an atrial appendage of stasis reducing components such as mesh members, chemical bonding agents or expandable anchors are disclosed.
    Type: Grant
    Filed: October 13, 2007
    Date of Patent: December 28, 2010
    Assignee: EP Technologies, Inc.
    Inventors: Sidney D. Fleischman, James G. Whayne, Thomas M. Bourne, David K. Swanson
  • Patent number: 7837681
    Abstract: A catheter assembly comprises a first branch body having a first axis, a second branch body extending in a non-parallel relationship with respect to the first axis, and at least one electrode carried by the second branch body. In use, the first branch body can be located within a pulmonary vein within the left atrium, while the electrode carried by the second branch body is located in contact with endocardial tissue outside the pulmonary vein. Ablation energy can be transmitted from the electrode to contacted endocardial tissue while the first branch body is located within the pulmonary vein.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: November 23, 2010
    Assignee: EP Technologies, Inc.
    Inventors: James G Whayne, Sidney D Fleischman, Russell B Thompson, David K Swanson, Yi Yang
  • Patent number: 7837684
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: November 23, 2010
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Patent number: 7451807
    Abstract: A heat exchanger and a method for drying a humid medium. In the heat exchanger an internal cross-over passage, allowing a humid medium to double back on itself in a zone delimited by a barrier, is provided. In a first step the heat exchanger cools itself and in a final step the heat exchanger heats itself. Separation areas allow condensation and collection of water within the heat exchanger. The heat exchanger and method enable drying of compressed air within one and the same heat exchanger package.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: November 18, 2008
    Assignees: Advanced Flow Technology Inc., EP Technology AB
    Inventor: Lars Persson
  • Patent number: 7413568
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: August 19, 2008
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Patent number: 7337836
    Abstract: A heat exchanger with a leakage vent. A fully brazed heat exchanger has an arrangement preventing the two media inside the heat exchanger from mixing in case of leakage. The heat exchanger includes plates having a pattern of grooves and inlet and outlet connections. The plates are placed in a pack and brazed together so as to form separate channels for two media between alternating pairs of plates. A separation zone is created around the connection so as so block off the medium that is not to reach the respective connection. The other medium can flow on by. A leakage vent to the exterior is provided in the separation zone so as to allow detection of any leakage.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: March 4, 2008
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Patent number: 7334431
    Abstract: An evaporator including an evaporating chamber equipped with a drainage. The drainage drains accumulated liquid from the evaporator's lower parts and includes an external expansion driven injector and/or an external pump. The evaporator can be used e.g. in a heat exchanger, e.g. in a heat pump system or air condition system, and the vacuum driven injector can be integrated with an expansion device of the heat exchanger. A condenser can be used together with the evaporator in a heat exchanger of the plate type realizing an integrated superheater/supercooler. This is accomplished by the definition and use of delimited interacting zones through which the cooling medium circulates under heat exchange with itself.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: February 26, 2008
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Patent number: 7335196
    Abstract: A device for creating the lesions in body tissue includes a support element having an electromagnetic energy emitting region. When caused to emit electromagnetic energy, the region creates a single continuous lesion that is long and thin, having a length that is substantially greater than its width.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: February 26, 2008
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman
  • Patent number: 7297144
    Abstract: Devices for insertion into an atrial appendage of stasis reducing components such as mesh members, chemical bonding agents or expandable anchors are disclosed.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 20, 2007
    Assignee: EP Technologies, Inc.
    Inventors: Sidney D. Fleischman, James G. Whayne, Thomas M. Bourne, David K. Swanson
  • Publication number: 20070261829
    Abstract: The invention relates to a heat exchanger with an indentation pattern, and specifically a heat exchanger with heat exchanger plates (1) provided with a special pattern instead of the traditional herringbone pattern. The pattern comprises at least one section with bulges (2) and hollows (3), said bulges and hollows having flat tops and bottoms intended to be placed against respective hollows and bulges of a heat exchanger plate of a corresponding design. The surface area of said tops and bottoms is such in relation to the distance between the tops and bottoms that channels (6) for the flow of a medium are formed between the bulges.
    Type: Application
    Filed: September 7, 2005
    Publication date: November 15, 2007
    Applicant: EP TECHNOLOGY AB
    Inventor: Lars Persson
  • Patent number: 7213635
    Abstract: A heat exchanger including plates with a pattern of grooves and connections for inlets and outlets. The plates are placed in a pack and brazed so that separate channels for two media area are formed between alternating pair of plates. A set of holes is arranged in the plates around the connections, and a reinforcement mechanism is arranged through the holes.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 8, 2007
    Assignee: EP Technology AB
    Inventor: Lars Persson
  • Patent number: 7115122
    Abstract: A method of ablating tissue in the heart to treat atrial fibrillation introduces into a selected atrium an energy emitting element. The method exposes the element to a region of the atrial wall and applies ablating energy to the element to thermally destroy tissue. The method forms a convoluted lesion pattern comprising elongated straight lesions and elongated curvilinear lesions. The lesion pattern directs electrical impulses within the atrial myocardium along a path that activates the atrial myocardium while interrupting reentry circuits that, if not interrupted, would cause fibrillation. The method emulates the surgical maze procedure, but lends itself to catheter-based procedures that do not require open heart surgical techniques. A composite structure for performing the method is formed using a template that displays in planar view a desired lesion pattern for the tissue. An array of spaced apart element is laid on the template.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: October 3, 2006
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Thomas F. Kordis, David L. McGee
  • Publication number: 20060179875
    Abstract: An evaporator including an evaporating chamber equipped with a drainage. The drainage drains accumulated liquid from the evaporator's lower parts and includes an external expansion driven injector and/or an external pump. The evaporator can be used e.g. in a heat exchanger, e.g. in a heat pump system or air condition system, and the vacuum driven injector can be integrated with an expansion device of the heat exchanger. A condenser can be used together with the evaporator in a heat exchanger of the plate type realizing an integrated superheater/supercooler. This is accomplished by the definition and use of delimited interacting zones through which the cooling medium circulates under heat exchange with itself.
    Type: Application
    Filed: April 15, 2004
    Publication date: August 17, 2006
    Applicant: EP TEChNOLOGY AB
    Inventor: Lars Persson
  • Patent number: 7063682
    Abstract: A catheter assembly having a sheath, which includes a side wall enclosing an interior bore, and a distal region. The assembly also has a bendable catheter tube, which is carried for sliding movement in the interior bore. A pull wire also runs through the interior bore of the sheath, preferably within a lumen. The catheter tube has a distal portion with a coupling which joins the distal portion of the catheter tube and the distal portion of the pull wire. Relative movement of the pull wire and the sheath causes bending of the catheter tube outwardly through the opening, in response to sliding movement of the catheter tube within the interior bore toward the distal region of the sheath.
    Type: Grant
    Filed: February 21, 2000
    Date of Patent: June 20, 2006
    Assignee: EP Technologies, Inc.
    Inventors: James G. Whayne, Sidney D. Fleischman
  • Patent number: 7052492
    Abstract: A surgical method and apparatus for positioning a diagnostic or therapeutic element within the body. The apparatus may be catheter-based or a probe including a relatively short shaft.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: May 30, 2006
    Assignee: EP Technologies, Inc.
    Inventors: David K. Swanson, Sidney D. Fleischman, Josef V. Koblish, Russell B. Thompson, James G. Whayne, Thomas R. Jenkins, Edward J. Snyder