Patents Assigned to Salviac Limited
  • Publication number: 20150230911
    Abstract: A catheter system 1 has an internal reception space for an embolic protection filter 10 to enable the filter 10 to be transported through a vasculature 20 and a treatment means such as a stent 15 to facilitate treatment. The catheter system may be used for retrieval of a filter 10 and stenting of a lesion with a stent 15. The procedure may also involve post dilatation using an on-board balloon 16.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 20, 2015
    Applicant: SALVIAC LIMITED
    Inventors: Eamon BRADY, Charles TAYLOR, Patrick GRIFFIN, Brendan CASEY, David VALE, Paul GILSON, John O'SHAUGHNESSY
  • Patent number: 8852226
    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: Grant
    Filed: July 15, 2011
    Date of Patent: October 7, 2014
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Publication number: 20140142609
    Abstract: An embolic filter having a filter support frame with a collapsed and an expanded configuration and a collapsible filter body supported by the support frame. The filter body has inlet and outlet ends. The filter body includes a proximal section having a longitudinally extending cylindrical shape and a distal section having a longitudinally extending conical shape that tapers in the distal direction. The support frame includes a plurality of alternating first segments such that, when the support frame is in the expanded configuration, the alternating first segments circumferentially extend in a first zigzag path to support the proximal, cylindrically shaped section of the filter body. The support frame includes a plurality of alternating second segments such that, when the support frame is in the expanded configuration, the alternating second segments circumferentially extend in a second zigzag path to support the proximal, cylindrically shaped section of the filter body.
    Type: Application
    Filed: October 8, 2013
    Publication date: May 22, 2014
    Applicant: SALVIAC LIMITED
    Inventors: Martin KEEGAN, Eamon BRADY, Brendan CASEY, David VALE, John NEILAN, Morgan TIERNEY
  • Patent number: 8603131
    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 on 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 13, 2006
    Date of Patent: December 10, 2013
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 8430901
    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: June 13, 2007
    Date of Patent: April 30, 2013
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Publication number: 20130041400
    Abstract: A catheter system 1 has an internal reception space for an embolic protection filter 10 to enable the filter 10 to be transported through a vasculature 20 and a treatment means such as a stent 15 to facilitate treatment. The catheter system may be used for retrieval of a filter 10 and stenting of a lesion with a stent 15. The procedure may also involve post dilatation using an on-board balloon 16.
    Type: Application
    Filed: October 12, 2012
    Publication date: February 14, 2013
    Applicant: SALVIAC LIMITED
    Inventor: SALVIAC LIMITED
  • Patent number: 8328842
    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: Grant
    Filed: February 7, 2011
    Date of Patent: December 11, 2012
    Assignee: Salviac Limited
    Inventor: Eamon Brady
  • Patent number: 8303617
    Abstract: A catheter system 1 has an internal reception space for an embolic protection filter 10 to enable the filter 10 to be transported through a vasculature 20 and a treatment means such as a stent 15 to facilitate treatment. The catheter system may be used for retrieval of a filter 10 and stenting of a lesion with a stent 15. The procedure may also involve post dilatation using an on-board balloon 16.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: November 6, 2012
    Assignee: Salviac Limited
    Inventors: Eamon Brady, Charles Taylor, Patrick Griffin, Brendan Casey, David Vale, Paul Gilson, John O'Shaughnessy
  • Patent number: 8241319
    Abstract: An 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: August 20, 2007
    Date of Patent: August 14, 2012
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Griffin, John Nielan, David Vale, Eamon Brady
  • Patent number: 8226678
    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: June 13, 2007
    Date of Patent: July 24, 2012
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 8221448
    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: June 13, 2007
    Date of Patent: July 17, 2012
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 8216270
    Abstract: An embolic protection device has a collapsible filter element mounted on a carrier such as a guidewire. The filter element collapses into an outer end of a catheter for deployment and retrieval through a vascular system of a patient. The filter element 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 is movable along the guidewire 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 for retrieval.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: July 10, 2012
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 8123778
    Abstract: An embolic protection system comprises an embolic protection filter 1 having a collapsed delivery configuration and an expanded deployed configuration. The filter 1 is housed in the collapsed configuration in a reception space of a delivery catheter 20. The delivery catheter 20 containing the filter 1 is housed in a sealed sterile pouch 35. The filter 1 may be coated with a non-thrombogenic coating and an adhesion preventer 9 such as a silicon gel is used to substantially prevent adhesion of adjacent folds of the filter 1 when the filter is in the collapsed configuration in the delivery catheter 20.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: February 28, 2012
    Assignee: Salviac Limited
    Inventors: Eamon Brady, Gary Fahey, Brendan Casey, Ann Marie Cannon, David Vale, Martin Keegan
  • Patent number: 8123776
    Abstract: An 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: June 1, 2005
    Date of Patent: February 28, 2012
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Charles Taylor, Patrick Griffin, John Nielan, David Vale, Eamon Brady
  • Patent number: 8118830
    Abstract: Methods and devices for reducing emboli formation during medical procedures. In accordance with the present invention a first medical device is passed through a stenosed area and activated to block fluid flow through the lumen, a second medical device including a filter is passed through the stenosed area and deployed. The first medical device is then deactivated to restore fluid flow through the lumen.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: February 21, 2012
    Assignee: Salviac Limited
    Inventors: Gerard Rabbitte, Ronald Kelly
  • Patent number: 8114115
    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: February 14, 2012
    Assignee: Salviac Limited
    Inventors: Eamon Brady, David Vale, Ronald Kelly, John Neilan, Steven Horan, Gerard Rabitte, Gerry McCaffrey
  • Publication number: 20110307002
    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 advancable 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: Application
    Filed: June 3, 2011
    Publication date: December 15, 2011
    Applicant: SALVIAC LIMITED
    Inventors: Paul GILSON, Charles TAYLOR, Patrick GRIFFIN, John NIELSEN, David VALE, Eamon BRADY
  • Patent number: 8057504
    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: March 8, 2005
    Date of Patent: November 15, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Eamon Brady, Padraig Maher, David Vale, Charles Taylor
  • Patent number: 8057506
    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: May 25, 2007
    Date of Patent: November 15, 2011
    Assignee: Salviac Limited
    Inventors: Paul Gilson, Michael Gilvarry, Eamon Brady, David Vale, Steven Horan
  • Patent number: 8057505
    Abstract: An embolic protection device (2000) comprises a collapsible filter body (102), a filter support (103) for supporting the filter body (102), and a tubular member (108) to which the filter support (103) is mounted. The filter support (103) comprises two round wires (116). Each wire (116) has a “M”-shaped curve (120) in the wire (116) which acts as a strain distributing linking element. In an extended configuration, the concave portion of each curve (120) faces longitudinally in the distal direction. In a collapsed configuration, the concave portion faces radially inwardly towards the tubular member (108) and wraps around part of the tubular member (108) to define a compact, low-profile filter support (103). Tethers (500, 501) extend between the curves (120) and a sleeve (201) slidably mounted to the tubular member (108). The distal end of each tether (500, 501) is fixedly attached to the sleeve (201) and to the filter body (102).
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: November 15, 2011
    Assignee: Salviac Limited
    Inventors: John Neilan, Ronan Keating, David Vale