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US 12,533,137 B2Granted
Medical device with enhanced shape characteristics
AssigneeMicroVention, Inc.
InventorsHussain S. Rangwala, Ronak Dholakia
Life of this patent
Estimating the term…
Abstract
A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.
Claims20
An implant for treating an aneurysm comprising:
- a scaffold structure comprising one or more scaffold wires braided together to form an elongated mesh;
- and,
- a first conductive wire segment and a second conductive wire segment positioned along the elongated mesh and connected by a distal conductive band;
- wherein the first conductive wire segment and the second conductive wire segment have a transition temperature above body temperature such that below the transition temperature the elongated mesh is in a linear configuration and such that above the transition temperature the first conductive wire segment and the second conductive wire segment maintain the elongated mesh in an expanded operative configuration.
1 more element
An implant for treating an aneurysm comprising:
- a scaffold structure comprising one or more scaffold wires braided together to form an elongated mesh;
- and,
- a first conductive wire segment and a second conductive wire segment positioned along the elongated mesh;
- a first conductive coil disposed around a proximal portion of the first conductive wire segment and a second conductive coil disposed around a proximal portion of the second conductive wire segment;
- wherein the first conductive wire segment and the second conductive wire segment have a transition temperature above body temperature such that below the transition temperature the elongated mesh is in a linear configuration and such that above the transition temperature the first conductive wire segment and the second conductive wire segment maintain the elongated mesh in an expanded operative configuration.
2 more elements
A method of changing a shape of an implantable device comprising:
- advancing a delivery device with a scaffold structure within a patient, the scaffold structure comprising an elongated mesh and being advanced in a linear, ribbon configuration;
- at least partially releasing the scaffold structure from the delivery device;
- providing heat through one or more conductive wires positioned along the elongated mesh until the one or more conductive wires are above body temperature and exceed a transition temperature;
- wherein exceeding the transition temperature changes a shape of the elongated mesh to an operative shape;
- wherein the at least partially releasing the scaffold structure from the delivery device further comprises releasing at least a first conductive coil connected to the one or more conductive wires from a recess of the delivery device;
- wherein the recess comprises an electrical contact.
3 more elements
Dependencies are inferred from the claim text.