Instrumented retrievable implantable device
First Claim
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1. A combination of:
- an implantable intraluminal or intravascular device for use in a body lumen having walls, and an apparatus for positioning said implantable device in the body lumen, the combination comprising;
said implantable device comprising;
an elongated body;
an expandable section having elongated straight struts with a proximal section connected to said elongated body and extending at an angle to said elongated body, and a distal section extending parallel to said elongated body, said expandable section having a variable dimension allowing a compressed value for delivery to said body lumen and an expanded value, larger than said compressed value, for implantation in said body lumen so that the proximal sections press the distal sections outwardly against said body lumen walls to removably engage the device with said body lumen;
a link section, at one end of said device comprising a grip, for detachably joining said device to a catheter, and for applying an axial force on said device, wherein said grip comprises a head having a transversal dimension, and a neck connecting said head to said device, having a dimension smaller than said transversal dimension of said head;
at least one sensor joined to said device;
wherein said device is arranged for reacting to an axial pulling force to said grip, by assuming said compressed value of said variable dimension, for retrieval or repositioning of at least part of said implantable device; and
said apparatus comprising;
a flexible catheter, inserted into a flexible sleeve;
a grasp section, fixed to the tip of said catheter, for cooperating with the link section of said implantable device, said grasp section comprising at least two opposed flexible fingers;
said flexible sleeve interacting with said flexible fingers for opening and closing said flexible fingers on said link section of said implantable device, and interacting with an expandable section of said implantable device for reducing the variable dimension of said implantable device.
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Abstract
Instrumented retrievable implantable device (2), comprising an expandable section, for placement inside a body lumen, preferably in a blood vessel. The device (2) comprises a joined sensor (70) for monitoring one or more physiological parameter for diagnostic or therapeutic purposes. Data access is assured by a passive RF transponder, in communication with an external readout unit or an implanted device, providing as well to the energy supply of the sensor (70). The shape of the device of the invention (2) allows repositioning and retrieval by micro-invasive methods, by means of a link section (20) capable of being coupled with a grabbing device (45) mounted on a catheter (40).
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Citations
23 Claims
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1. A combination of:
- an implantable intraluminal or intravascular device for use in a body lumen having walls, and an apparatus for positioning said implantable device in the body lumen, the combination comprising;
said implantable device comprising; an elongated body; an expandable section having elongated straight struts with a proximal section connected to said elongated body and extending at an angle to said elongated body, and a distal section extending parallel to said elongated body, said expandable section having a variable dimension allowing a compressed value for delivery to said body lumen and an expanded value, larger than said compressed value, for implantation in said body lumen so that the proximal sections press the distal sections outwardly against said body lumen walls to removably engage the device with said body lumen; a link section, at one end of said device comprising a grip, for detachably joining said device to a catheter, and for applying an axial force on said device, wherein said grip comprises a head having a transversal dimension, and a neck connecting said head to said device, having a dimension smaller than said transversal dimension of said head; at least one sensor joined to said device; wherein said device is arranged for reacting to an axial pulling force to said grip, by assuming said compressed value of said variable dimension, for retrieval or repositioning of at least part of said implantable device; and said apparatus comprising; a flexible catheter, inserted into a flexible sleeve; a grasp section, fixed to the tip of said catheter, for cooperating with the link section of said implantable device, said grasp section comprising at least two opposed flexible fingers; said flexible sleeve interacting with said flexible fingers for opening and closing said flexible fingers on said link section of said implantable device, and interacting with an expandable section of said implantable device for reducing the variable dimension of said implantable device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- an implantable intraluminal or intravascular device for use in a body lumen having walls, and an apparatus for positioning said implantable device in the body lumen, the combination comprising;
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13. A combination of:
- an implantable intraluminal or intravascular device and an apparatus for positioning said implantable device in a body lumen having walls,
said implantable device comprising; an elongated body; an expandable section having elongated straight struts with a proximal section connected to said elongated body and extending at an angle to said elongated body, and a distal section extending parallel to said elongated body, said expandable section having a variable dimension allowing a compressed value for delivery to said body lumen and an expanded value, larger than said compressed value, for implantation in said body lumen so that the proximal sections press the distal sections outwardly against the body lumen walls to removably engage the device with said body lumen; a link section, at one end of said device comprising a grip, for joining said device to a catheter, and for applying an axial force on said device; at least a sensor joined to said device; said apparatus comprising; a flexible catheter, inserted into a flexible sleeve; a grasp section, fixed to the tip of said catheter, for cooperating with said link section of said implantable device, said grasp section comprising at least two opposed flexible fingers; said flexible sleeve interacting with said flexible fingers for opening and closing said flexible fingers on said link section; wherein said flexible sleeve interacts with said implantable device by forcing the expandable section to assume said compressed value of said variable dimension, when said device is pulled by said flexible catheter into said flexible sleeve. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
- an implantable intraluminal or intravascular device and an apparatus for positioning said implantable device in a body lumen having walls,
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23. A method for sensing a parameter within a body lumen comprising the steps of:
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providing an implantable intraluminal or intravascular device with an elongated body including; an expandable section having elongated straight struts with a proximal section connected to the elongated body and extending at an angle to said elongated body, and a distal section extending parallel to the elongated body, the expandable section having a variable dimension, said variable dimension allowing a compressed value for delivery to said body lumen and an expanded value, larger than said compressed value, for implantation in said body lumen; a link section, at one end of said device comprising a grip, for detachably joining said device to a catheter, and for applying an axial force on said device, wherein said grip comprises a head having a transversal dimension, and a neck connecting said head to said device, having a dimension smaller than said transversal dimension of said head; at least one sensor joined to said device; wherein said device is arranged for reacting to an axial pulling force to said grip, by assuming said compressed value of said variable dimension, for retrieval or repositioning of at least part of said implantable device, providing an apparatus for positioning said implantable device in the body lumen, including; a flexible catheter, inserted into a flexible sleeve; a grasp section, fixed to the tip of said catheter, for cooperating with said link section of said implantable device, said grasp section comprising at least two opposed flexible fingers; said flexible sleeve interacting with said flexible fingers for opening and closing said flexible fingers on said link section; wherein said flexible sleeve interacts with said implantable device by forcing the expandable section to assume said compressed value of said variable dimension, when said device is pulled by said flexible catheter into said flexible sleeve.
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Specification