Fiberoptic tissue motion sensor
AssigneeProteus Biomedical, Inc.
InventorBenedict Costello
Life of this patent
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Abstract
Devices and methods for evaluating motion of a tissue location, such as cardiac tissue location, e.g., heart wall, are provided. Devices employed in the subject methods are fiberoptic tissue motion sensors that include a light guide having a reflective element at its distal end and a light emitter/detector at its proximal end. In embodiments of the methods, a signal obtained from reflective element stably associated with the tissue location of interest is employed to evaluate movement of the tissue location. The subject methods and devices find use in a variety of different applications, including cardiac resynchronization therapy.
Claims30
An implantable tissue motion sensor, said tissue motion sensor comprising:
- a light guide having a proximal end and a distal end;
- a reflective element located at said distal end, wherein said reflective element is configured such that movement of tissue stably associated with said reflective element causes said reflective element to move;
- a light transmitter and a light detector both optically coupled to said proximal end.
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A micro-machined chip comprising a mirror having at least one reflective surface, wherein said mirror is connected to a first frame by one or more torsional beams.
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Dependencies are inferred from the claim text.