MEDICAL DEVICES HAVING MEMS FUNCTIONALITY AND METHODS OF MAKING SAME
First Claim
1. An endoluminal stent having a plurality of structural elements defining luminal and abluminal wall surfaces thereof, a central lumen, and a plurality of openings passing through the luminal and abluminal wall surfaces, comprising at least one microelectromechanical system formed within at least a portion of the at least one of the plurality of structural elements
3 Assignments
0 Petitions
Accused Products
Abstract
Implantable medical devices, including stents, grafts, covered stents, catheters, patches or the like having regions of the device which are functionalized employing microelectromechanical systems that are capable of acting as electromechanical sensors or biosensors in response to either an endogenous event, such as tissue growth, biochemical binding events, pressure changes, or respond to an externally applied stimulus, such as RF energy, to cause a change in the state of the device, such as to induce an oscillation signal which may be interrogated and interpreted external the body or may generate an induced electrical or electromagnetic potential in the device to activate micromotors to effect a geometric change in the device.
27 Citations
20 Claims
- 1. An endoluminal stent having a plurality of structural elements defining luminal and abluminal wall surfaces thereof, a central lumen, and a plurality of openings passing through the luminal and abluminal wall surfaces, comprising at least one microelectromechanical system formed within at least a portion of the at least one of the plurality of structural elements
- 8. A system for actuating an endoluminal stent, comprising at least one actuator member operably associated with the endoluminal stent, at least one communication circuit in operably communicating with the at least one actuator member, at least one logic circuit electrically coupled to the communication circuit, and at least one power source.
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12. A method of making a galvanotactic stent having a plurality of structural elements defining luminal and abluminal wall surfaces thereof, a central lumen, and a plurality of openings passing through the luminal and abluminal wall surfaces, comprising fabricating the stent at least partially by multi-layer physical vapor deposition, wherein the method further comprises,
depositing a first substrate layer, depositing an intermediate conductive layer, forming interdigitated electrodes in the conductive layer, depositing a final top insulating layer, and forming a plurality of openings patterned to match the position of the interdigitated electrodes in the intermediate conductive layer, wherein at least one microelectromechanical system is formed within at least a portion of the at least one of the plurality of structural elements.
Specification