Patents Assigned to Salviac Limited
  • Publication number: 20110276120
    Abstract: A vascular device for use during an interventional procedure, the device having a stent structure having a collapsed configuration, an expanded configuration, a proximal end, and a distal end; and a delivery member for delivering the stent to a treatment site within a vasculature, wherein the proximal end of the stent structure is fixed to the delivery member when the stent structure is in the expanded configuration at the treatment site.
    Type: Application
    Filed: July 15, 2011
    Publication date: November 10, 2011
    Applicant: SALVIAC LIMITED
    Inventors: Paul GILSON, Eamon BRADY, Padraig MAHER, David VALE, Charles TAYLOR
  • Patent number: 8052716
    Abstract: A embolic protection system 1 comprises a guidewire 99 for advancing through a vasculature, the guidewire 99 having a distal end and a proximal end; an embolic protection filter 1 having a filter body 41 with a distal end and a proximal end, the filter body 41 providing for a collapsed configuration and an expanded deployed configuration. The embolic protection filter body 41 has a guidewire path for slidably receiving the guidewire 99 to permit movement of the filter 1 relative to the guidewire 99 when the filter 1 is in the collapsed configuration and the expanded deployed configuration. A delivery catheter 2 is advanceable over the guidewire 99 for delivery of the embolic protection filter 1; the delivery catheter 2 having a proximal end and a distal end. The filter 1 is deployed from the distal end of the delivery catheter 2 into the expanded deployed configuration.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: November 8, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Griffin, John Nielan, David Vale, Eamon Brady
  • Patent number: 8038697
    Abstract: A collapsible filter element for a transcatheter embolic protection device, the filter element comprises a collapsible filter body of polymeric material which is movable between a collapsed stored position for movement through a vascular system and an expanded position for extension across a blood vessel such that blood passing through the blood vessel is delivered through the filer element. A proximal inlet portion of the filter body has one or more inlet openings sized to allow blood and embolic material enter the filter body. A distal outlet portion of the filter body has a plurality of generally circular outlet openings sized to allow through-passage of blood, but to retain embolic material within the filter body. The distal outlet portion of the filter body in the region of the outlet openings has means for reducing shear stress on blood passing through the outlet openings. The shear stress reducing means includes lead-in and lead-out radiussed portions of the filter body leading to the outlet holes.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 18, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Michael Gilvarry
  • Patent number: 8002790
    Abstract: An embolic protection device comprises a collapsible filter body and a filter support for the filter body. The filter support comprises a support frame defined by at least two wire segments having terminations. The terminations of adjacent segments are fixed relative to one another and extend generally parallel in a bifilar manner for enhanced trackability and flexibility.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: August 23, 2011
    Assignee: Salviac Limited
    Inventors: Eamon Brady, David Vale, Ronald Kelly, John Neilan, Steven Horan, Gerard Rabitte, Gerry McCaffrey
  • Publication number: 20110202087
    Abstract: A delivery catheter 1 has a distal pod 2 for reception of an embolic protection filter 3. The filter 2 is moved from a retracted delivery configuration to an extended deployed configuration by a push wire 6, which may comprise a push element 7 at its distal end for engagement with the filter 2. For example, retraction of a handle 9 has the effect of retracting the pod 3 relative to the push wire 6 and the filter 2 is effectively deployed by pushing it out of the pod 3. The filter 2 and catheter 1 are advanced to a treatment site over a guidewire, wherein the push wire 6 and push element 7 are completely separate from the guidewire.
    Type: Application
    Filed: April 25, 2011
    Publication date: August 18, 2011
    Applicant: SALVIAC LIMITED
    Inventor: David VALE
  • Patent number: 7972352
    Abstract: An embolic protection system having a guidewire for advancing through a vasculature; an embolic protection filter having a filter body with a distal end and a proximal end, the filter body providing for a collapsed configuration and an expanded deployed configuration. The embolic protection filter body has a guidewire path for slidably receiving the guidewire to permit movement of the filter relative to the guidewire when the filter 1 is in the collapsed configuration and the expanded deployed configuration. A delivery catheter is advanceable over the guidewire for delivery of the embolic protection filter. A retrieval catheter is also advanceable over the guidewire for retrieval of the filter , and engagement elements are used for engaging the embolic protection filter with the guidewire for retrieval of the filter into the retrieval catheter in the collapsed configuration.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: July 5, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Grirrin, John Nielan, David Vale, Eamon Brady
  • Patent number: 7967837
    Abstract: A delivery catheter 1 has a distal pod 2 for reception of an embolic protection filter 3. The filter 2 is moved from a retracted delivery configuration to an extended deployed configuration by a push wire 6 which has an engagement hoop 7 at the distal end. Retraction of a handle 9 has the effect of retracting the pod 3 relative to the push wire 6 and the engagement hoop 7 and the filter 2 is effectively deployed by pushing it out of the pod 3.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: June 28, 2011
    Assignee: Salviac Limited
    Inventor: David Vale
  • Publication number: 20110125182
    Abstract: A medical guidewire assembly comprises a guidewire having a flexible tip. A medical device such as a collapsible filter for use as an embolic protection device is mounted on the guidewire. The filter is advanced through a body lumen with the guidewire tip extending distally. A variable thickness guidewire (having a recess or thinner segment between thicker segments) can be employed. At a first location the filter is advanced relative to the tip to a location which is distally advanced from the first location. Placement of the filter in an optimal distal location is thereby achieved.
    Type: Application
    Filed: February 7, 2011
    Publication date: May 26, 2011
    Applicant: SALVIAC LIMITED
    Inventor: Eamon BRADY
  • Patent number: 7927350
    Abstract: A device and method for liberating plaque from a lumen after a medical procedure has been formed. The device includes a catheter having a first expandable member and a second expandable member.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: April 19, 2011
    Assignee: Salviac Limited
    Inventors: Gerard Rabbitte, Ronald Kelly
  • Patent number: 7927349
    Abstract: A support 103 for an embolic protection device comprises round wires 116 which may form one or more support hoops for a filter body. The circumferential hoop formed by the wires 116 ensures that in the expanded position, the filter body 102 will be supported by the support frame 103 in circumferential apposition with the interior wall of the vasculature. The wires 116 may have a strain distributing linkage element in the form of a loop 120. The loop 120 acts as a diameter or circumference adjuster allowing an embolic protection device to adapt to different Bessel contours and sizes whilst maintaining apposition with the vessel wall. The strain relieving geometry of the loops enhances the compliance of the bend points without creating a weakened hinge point, thus ensuring that there is no discontinuity in the circumferential seal against the vessel wall.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 19, 2011
    Assignee: Salviac Limited
    Inventors: Eamon Brady, David Vale, Ronald Kelly, John Neilan, Steven Horan, Gerard Rabbitte, Gerry McCaffrey
  • Patent number: 7922741
    Abstract: An embolic protection device comprises a collapsible filter element for delivery through a vascular system of a patient. The filter element comprising a collapsible filter body and a filter support frame contacting the filter body. The collapsible filter body has an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body. The filter support frame is movable between a collapsed position for movement through the vascular system and an extended outwardly projecting position to support the filter body in the expanded position.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 12, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Michael Gilvarry, Eamon Brady, David Vale, Steven Horan
  • Patent number: 7901426
    Abstract: An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the fitter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: March 8, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 7901427
    Abstract: A medical guidewire assembly comprises a guidewire having a flexible tip. A medical device such as a collaptible filter for use as an embolic protection device is mounted on the guidewire. The filter is advanced through a body lumen with the guidewire tip extending distally. At a first location the filter is advanced relative to the tip to a location which is distally advanced from the first location. Placement of the filter in an optimal distal location is thereby achieved.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: March 8, 2011
    Assignee: Salviac Limited
    Inventor: Eamon Brady
  • Publication number: 20110054516
    Abstract: An embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter. The filter is movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature. The filter at least in the collapsed configuration was a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire. The guidewire lumen is defined by a lumen-defining member which is spaced proximally of the distal end of the filter.
    Type: Application
    Filed: November 8, 2010
    Publication date: March 3, 2011
    Applicant: SALVIAC LIMITED
    Inventors: Martin Keegan, Eamon Brady, Brendan Casey, David Vale, John Neilan, Morgan Tierney
  • Publication number: 20110034951
    Abstract: A device for loading an embolic protection filter into a catheter including a loading member for collapsing an embolic protection filter, wherein an outlet of the loading member is configured to be aligned with an inlet of a catheter extending along at least part of an exterior surface of the catheter for loading of the collapsed embolic protection filter into the catheter. The loading member may have a passageway extending therethrough, through which an embolic protection filter may be passed to collapse the embolic protection filter. The outlet of the loading member may include an outlet of the passageway that is at least partially funnel-shaped. The loading member may include a tubular part extendable along part of an exterior surface of a catheter, the outlet of the loading member being provided at an end of the tubular part.
    Type: Application
    Filed: May 3, 2010
    Publication date: February 10, 2011
    Applicant: SALVIAC LIMITED
    Inventors: Ronan Keating, David Vale, John NEILAN
  • Patent number: 7867248
    Abstract: An embolic protection device comprises a collapsible filter element for delivery through a vascular system of a patient. The filter element comprising a collapsible filter body and a filter support frame contacting the filter body. The collapsible filter body has an inlet end and an outlet end, the inlet end of the filter body having one or more inlet openings sized to allow blood and embolic material to enter the filter body, the outlet end of the filter body having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter body. The filter support frame is movable between a collapsed position for movement through the vascular system and an extended outwardly projecting position to support the filter body in the expanded position.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: January 11, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Michael Gilvarry, Eamon Brady, David Vale, Steven Horan
  • Publication number: 20100331952
    Abstract: The method comprises the steps of advancing a guidewire from a first intermediate location to a further intermediate location which is proximal of the treatment location and, subsequently, advancing a medical device over the guidewire toward the further intermediate location. The method may comprise repeating these steps for additional intermediate locations. In one case the treatment location is in the carotid artery. The treatment location may be at or adjacent to the carotid bifurcation. An intermediate location may be at or adjacent to the aortic arch. An intermediate location may be at or adjacent to the carotid take-off. The medical device may be delivered over the guidewire using a delivery catheter. The delivery catheter and the medical device may be advanced through the vasculature without the use of a guide catheter.
    Type: Application
    Filed: September 3, 2010
    Publication date: December 30, 2010
    Applicant: SALVIAC LIMITED
    Inventors: Brendan CASEY, John Neilan, Gary Fahey, Michael Gilvarry, Eamon Brady, David Vale, Steven Horan, Ronald Kelly, Gerard McCaffrey
  • Patent number: 7846176
    Abstract: An assembly for loading a collapsible embolic protection filter 1 into a catheter 2, comprises a catheter 2 defining a reception space at a distal end of the catheter 2 for receiving a collapsed embolic protection filter 1; and a separate removable pushing device 8 for delivering the embolic protection filter 1 into the reception space. The pushing device 8 comprises an elongate stem 71 with a proximal stop 72 for engagement with the filter 1. A separate loading device 7 to collapse the embolic protection filter 1 is also provided. The loading device 7 defines an inlet end and an outlet end, the outlet end being configured for co-operative alignment with the reception space.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: December 7, 2010
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Griffin, Michael Gilvarry, David Vale, Eamon Brady
  • Patent number: 7842066
    Abstract: An assembly for loading a collapsible embolic protection filter 1 into a catheter 2, comprises a catheter 2 defining a reception space at a distal end of the catheter 2 for receiving a collapsed embolic protection filter 1; and a separate removable pushing device 8 for delivering the embolic protection filter 1 into the reception space. The pushing device 8 comprises an elongate stem 71 with a proximal stop 72 for engagement with the filter 1. A separate loading device 7 to collapse the embolic protection filter 1 is also provided. The loading device 7 defines an inlet end and an outlet end, the outlet end being configured for co-operative alignment with the reception space.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 30, 2010
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Griffin, Michael Gilvarry, David Vale, Eamon Brady
  • Patent number: 7842063
    Abstract: An embolic protection device has a collapsible filter element (105) mounted on a carrier such as a guidewire (101). The filter element (105) collapses into the outer end of a catheter (118) for deployment and retrieval through a vascular system of a patient. The filter element (105) has a collapsible filter body with a proximal inlet end and a distal outlet end. The proximal inlet end has inlet openings sized to allow blood and embolic material enter the filter body. The outlet end has outlet openings which allow through passage of blood but retain embolic material within the filter body. After use, the catheter (118) is movable along the guidewire (101) to engage the proximal end of the filter element and close the inlet openings before sliding over the filter element from the proximal end to the distal end to progressively collapse the filter body on the guidewire (101) for retrieval.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: November 30, 2010
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor