摘要:
A device for reshaping a cardiac valve (26), which is elongate and has such dimensions as to be insertable into a cardiac vessel (24). The device has two states, in a first state (K) of which the device has a shape that is adaptable to the shape of the vessel (24), and to the second state (k′) of which the device is transferable from said first state (K). Further, the device comprises a fixing means (22,23;22a,23a) for fixing the ends of the device within the vessel (24), when the device is first positioned therein, a shape-changing member (20;20a) for transferring the device to the second state (K′) by reshaping it, and a delay means (21;21a) for delaying said reshaping until the fixing of the ends of the device has been reinforced by keeping said device in said first state (K) until the delay means (21;21a) is resorbed.
摘要:
A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The tissue cutting device may thus be used for treating disorders to the heart rhythm regulation system. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders.
摘要:
Apparatus is provided for sealing a puncture in a blood vessel using at least one device that applies an internal compressive force upon a distal surface of the vessel. The devices preferably are deployable distal of the distal surface of the vessel, then retracted proximally to provide the internal compressive force, e.g., to promote coagulation and facilitate sealing of the puncture. Additionally, the devices of the present invention optionally may be used in combination with known techniques that provide an external compressive force upon an exterior surface of a patient's skin to expedite sealing of the puncture.
摘要:
An elongate body including a proximal and distal anchor, and a bridge between the proximal and distal anchors. The bridge has an elongated state, having first axial length, and a shortened state, having a second axial length, wherein the second axial length is shorter than the first axial length. A resorbable thread may be woven into the bridge to hold the bridge in the elongated state and to delay the transfer of the bridge to the shortened state. In an additional embodiment, there may be one or more central anchors between the proximal and distal anchors with a bridge connecting adjacent anchors.
摘要:
Apparatus and methods for providing distal protection during a medical procedure that include a vascular filter having a self-expanding, porous foam body that conformably seals against a vessel wall and captures emboli within one or more recesses. The filter is coupled to a distal region of an elongated member, such as a guide wire. Delivery systems for use with filters of the present invention and methods of using the apparatus of the present invention also are provided.
摘要:
Apparatus and methods for providing distal protection during a medical procedure comprising a vascular filter having a self-expanding, porous foam body that conformably seals against a vessel wall and captures emboli within one or more recesses. The filter is coupled to a distal region of an elongated member, such as a guide wire. Delivery systems for use with filters of the present invention and methods of using the apparatus of the present invention also are provided.
摘要:
Apparatus and methods for providing distal protection during a medical procedure comprising a vascular filter having a self-expanding, porous foam body that conformably seals against a vessel wall and captures emboli within one or more recesses. The filter is coupled to a distal region of an elongated member, such as a guide wire. Delivery systems for use with filters of the present invention and methods of using the apparatus of the present invention also are provided.
摘要:
Apparatus is provided for sealing a puncture within a vessel or tissue to provide hemostasis, comprising a first disk coupled to either a second disk or a spring, and sealingly engaged to the vessel or tissue surrounding the puncture. At least the first disk is preferably configured to substantially conform to the profile of the vessel or tissue when deployed. In one embodiment, the disks may be released from engagement with the vessel or tissue to reposition the disks after deployment.
摘要:
Apparatus and methods for stenting are provided comprising a stent attached to a porous biocompatible material that is permeable to endothelial cell ingrowth, but impermeable to release of emboli of predetermined size. Preferred stent designs are provided, as well as preferred manufacturing techniques. Apparatus and methods are also provided for use at a vessel branching. Moreover, embodiments of the present invention may comprise a coating configured for localized delivery of therapeutic agents. Embodiments of the present invention are expected to provide enhanced embolic protection, improved force distribution, and improved recrossability, while reducing a risk of restenosis and thrombus formation.
摘要:
Apparatus and methods for stenting are provided comprising a stent attached to a porous biocompatible material that is permeable to endothelial cell ingrowth, but impermeable to release of emboli of predetermined size. Preferred stent designs are provided, as well as preferred manufacturing techniques. Apparatus and methods are also provided for use at a vessel branching. Moreover, embodiments of the present invention may comprise a coating configured for localized delivery of therapeutic agents. Embodiments of the present invention are expected to provide enhanced embolic protection, improved force distribution, and improved recrossability, while reducing a risk of restenosis and thrombus formation.