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91. 发明专利

AU2003237570A1 AN EMBOLIC PROTECTION SYSTEM 未知
公开(公告)号：AU2003237570A1
公开(公告)日：2003-11-11
申请号：AU2003237570
申请日：2003-05-13
申请人： SALVIAC LTD
发明人： TAYLOR CHARLES , GRIFFIN PATRICK , CASEY BRENDAN , VALE DAVID , GILSON PAUL , O'SHAUGHNESSY JOHN , BRADY EAMON
IPC分类号： A61F2/00 , A61F2/01 , A61F2/06 , A61F2/84
摘要： 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.

92. 发明专利

AU2003262374A8 A medical device 未知
公开(公告)号：AU2003262374A8
公开(公告)日：2003-11-03
申请号：AU2003262374
申请日：2003-04-15
申请人： SALVIAC LTD
发明人： VALE DAVID , BRADY EAMON
IPC分类号： A61F2/00 , A61F2/01
摘要： At least part of the support (3) for an embolic protection filter is of a multifilament wire construction. The support (3) comprises Nitinol wires (21) wound in a spiral around a single radiopaque wire (22), the radiopaque wire (22) being located substantially along the axis of bending of the support (3). During bending of the support (3), for example upon movement of the support (3) to the expanded configuration, each wire (21, 22) bends independently of the other wires. As a result, the force required to bend the multifilament support (3) is minimised, and thus the filter (1) achieves enhanced trackability during transport through a tortuous vasculature, such as in coronary applications. Because the Nitinol wires (21) are wound in a spiral around the radiopaque wire (22), this configuration acts to decrease the bending stresses induced in each wire (21, 22) upon bending. The radiopaque wire (22) provides visualisation for a clinician during transport of the filter (1) through a vasculature and deployment of the filter (1) in the vasculature. Because the radiopaque wire (22) is located along the neutral axis of the support (3), the forces required to plastically deform the radiopaque wire (22) as the support (3) moves from the collapsed configuration to the expanded configuration, upon deployment of the filter (1), are minimised. In this way the dampening effect of the radiopaque material is minimised.

93. 发明专利

AU2003262373A1 A MEDICAL DEVICE 未知
公开(公告)号：AU2003262373A1
公开(公告)日：2003-11-03
申请号：AU2003262373
申请日：2003-04-15
申请人： SALVIAC LTD
发明人： VALE DAVID , MCCAFFREY GERARD , BRADY EAMON
IPC分类号： A61B20060101 , A61F2/00

94. 发明专利

IE20030283A1 A support for an embolic protection filter 未知
公开(公告)号：IE20030283A1
公开(公告)日：2003-10-29
申请号：IE20030283
申请日：2003-04-15
申请人： SALVIAC LTD
发明人： VALE DAVID
IPC分类号： A61F2/01 , A61M25/098
摘要： A support (3) for an embolic protection filter comprises a support element in the form of one or more wires (20) of superelastic material, such as Nitinol. A core of radiopaque material is embedded within at least portion of at least one of the support wires (20). The core may be in the form of a wire (21) of a suitable radiopaque material, such as gold, or platinum, or mercury and extends along the length of a support wire. The radiopaque wire (21) is located substantially along the neutral axis of bending of the support wire (20). The radiopaque wire (21) provides visualisation for a clinician during transport of the filter (1) through a vasculature and deployment of the filter (1) in the vasculature.

95. 发明专利

IE20020994A1 A Support Frame for an Embolic Protection Device 未知
公开(公告)号：IE20020994A1
公开(公告)日：2003-06-25
申请号：IE20020994
申请日：2002-12-23
申请人： SALVIAC LTD
发明人： RABITTE GERARD
IPC分类号： A61F2/06 , A61M25/04
摘要： 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) in. The loop (120) acts as a diameter or circumference adjuster allowing an embolic protection device to adapt to different vessel 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.

96. 发明专利

DE10191273T1 未知
公开(公告)号：DE10191273T1
公开(公告)日：2003-05-08
申请号：DE10191273
申请日：2001-04-20
申请人： SALVIAC LTD
发明人： GILSON PAUL , TAYLOR CHARLES , GRIFFIN PATRICK , NEILAN JOHN , VALE DAVID , BRADY EAMON
IPC分类号： A61B17/22 , A61B17/00 , A61F2/00 , A61F2/01 , A61F2/95 , A61M25/00 , A61M25/16 , A61M29/00
摘要： 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 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. A retrieval catheter 3 is also advancable over the guidewire 99 for retrieval of the filter 1, the retrieval catheter 3 having a distal end and a proximal end; and engagement elements for engaging the embolic protection filter 1 with the guidewire 99 for retrieval of the filter 1 into the retrieval catheter 3 in the collapsed configuration.

97. 发明专利

IE20020531A1 A Catheter 未知
公开(公告)号：IE20020531A1
公开(公告)日：2003-03-05
申请号：IE20020531
申请日：2002-06-27
申请人： SALVIAC LTD
发明人： CLIFFORD ANTON
IPC分类号： A61F2/06 , A61M25/10
摘要： A catheter (100) for delivery or retrieval of an embolic protection filter (101) has a distal pod (102) to house the filter (101). The filter (101) is deployed by means of an inflation balloon or sac (103) and the catheter has a proximal stop (104) for the sac. A proximal catheter shaft (106) has an inflation lumen for inflating the sac (103) from a delivery-retracted configuration to a longitudinally extended configuration to deploy the filter (101). A transition mid section shaft (109) extends proximally from the pod (102) and defines a rapid exchange exit port (105) for a guidewire (107).

98. 发明专利

IL145979D0 AN EMBOLIC PROTECTION DEVICE 未知
公开(公告)号：IL145979D0
公开(公告)日：2002-07-25
申请号：IL14597900
申请日：2000-05-08
申请人： SALVIAC LTD
IPC分类号： A61B17/00 , A61B17/22 , A61F2/01 , A61M1/34 , A61M25/00 , A61M29/00 , B01D61/14 , B01D63/00 , B01D71/26 , B01D71/46 , B01D71/54 , B01D71/56 , A61F
摘要： 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. The porosity of the distal portion of the filter body decreases towards the distal end. A blind portion extends for at least 5% of the length of the body. Preferably there are between 200 and 300 outlet opening with an average diameter of approximately 150 microns.

99. 发明专利

GB2345253B An embolic protection device 未知
公开(公告)号：GB2345253B
公开(公告)日：2002-06-19
申请号：GB0008610
申请日：1998-11-09
申请人： SALVIAC LTD
发明人： GILSON PAUL , BRADY EAMON , VALE DAVID , MAHER PADRAIG , TAYLOR CHARLES
IPC分类号： A61F2/06 , A61B17/00 , A61B17/22 , A61F2/01 , A61M25/00 , A61M25/09 , A61M29/00 , A61M31/00
摘要： 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. The filter element (105) may conveniently be mounted on a tubular sleeve (104) which is slidable and rotatable on the guidewire (101) between spaced-apart stops (106, 120) on the guidewire (101) which allows some manipulation of the guidewire independently of the filter when the filter is in use.

100. 发明专利

DE20180138U1 未知
公开(公告)号：DE20180138U1
公开(公告)日：2002-04-04
申请号：DE20180138
申请日：2001-06-25
申请人： SALVIAC LTD
IPC分类号： A61B17/00 , A61B17/221 , A61F2/01 , A61L29/00 , B01D39/00 , B01D39/16
摘要： A collapsible filter element (40) for a transcatheter embolic protection device (1). The filter element (40) comprises a collapsible filter body (41) 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 filter element (40). A proximal inlet portion of the filter body (41) has two inlet openings (50) sized to allow blood and embolic material enter the filter body (41), and a distal outlet portion of the filter body (41) has a plurality of small outlet openings (51) to allow through-passage of blood, but to retain embolic material within the filter body (41). The filter body (41) is of an oriented polymeric material.

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