Instrumented retrievable implantable device
OwnerRaymond Moserinventor
Life of this patent
Estimating the term…
Abstract
Instrumented retrievable implantable device, including an expandable section, for placement inside a body lumen, preferably in a blood vessel. The device includes a joined sensor 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. The shape of the device allows repositioning and retrieval by micro-invasive methods, by means of a link section coupleable with a grabbing device mounted on a catheter.
Claims22
A combination of:
- an implantable intraluminal or intravascular device and an apparatus for positioning said implantable device in a body lumen, said implantable device comprising:
- an 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 joining said device to a catheter, and for applying an axial force on said device;
- at least one sensor joined to said device;
- said apparatus for positioning 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 them on said link section;
- wherein said flexible sleeve interacts with said implantable device by forcing it to assume said compressed values of said variable dimension, when said device is pulled by said flexible catheter into said flexible sleeve
- wherein said expanded value is larger than an outer diameter of said apparatus for positioning.
Method for sensing a parameter within a body lumen, comprising:
- providing an implantable device comprising:
- an 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 joining said device to a catheter, and for applying an axial force on said device;
- at least a sensor joined to said device;
- providing an apparatus for positioning 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 them on said link section;
- wherein said flexible sleeve interacts with said implantable device by forcing it to assume said compressed value of said variable dimension, when said device is pulled by said flexible catheter into said flexible sleeve wherein said expanded value of said variable dimension is larger than an outer diameter of said apparatus for positioning;
- delivering said implantable device in said body lumen;
- expanding the variable dimension of said implantable device for anchoring it in said body lumen;
- contactlessly reading the value measured by said miniaturized sensor;
- retrieving said implantable device.
Dependencies are inferred from the claim text.