Small Bore Magnetic Resonance Imaging Photoplethysmographic Sensor
First Claim
1. A photoplethysmographic sensor for animals for use in a small bore MRI.
1 Assignment
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Accused Products
Abstract
An efficient, effective, MRI compatible small bore MRI noninvasive photoplethysmographic sensor for animals such as small rodents, namely rats and mice. The photoplethysmographic sensor for animals comprising: a non-magnetic sensor coupling attachable to an animal; fiber optic cable coupled to the sensor coupling and configured to deliver a signal to and receive a signal from the animal tissue adjacent the sensor coupling; an opto-electical converter coupled to the fiber optic cable, the converter including a receiver coupled the fiber optic cable portion configured to receive a signal from the animal tissue and including an emitter coupled to the fiber optic portion configured to deliver a signal to the animal tissue; an electronic coupling extending from the opto-electric converter and configured to be coupled to the emitter and the receiver, wherein the electronic coupling is configured to extend outside of the MRI chamber; and a processor coupled to the electronic coupling.
36 Citations
20 Claims
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1. A photoplethysmographic sensor for animals for use in a small bore MRI.
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2. An MRI compatible small bore MRI noninvasive photoplethysmographic sensor for animals comprising:
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a non-magnetic sensor coupling attachable to an animal; fiber optic cable coupled to the sensor coupling and configured to deliver a signal to the animal tissue adjacent the sensor coupling and to receive a signal from the animal tissue adjacent the sensor coupling; an opto-electical converter coupled to the fiber optic cable, the converter including a receiver coupled the fiber optic cable portion configured to receive a signal from the animal tissue and including an emitter coupled to the fiber optic portion configured to deliver a signal to the animal tissue; an electronic coupling extending from the opto-electric converter and configured to be coupled to the emitter and the receiver, wherein the electronic coupling is configured to extend outside of the MRI chamber; a processor coupled to the electronic coupling. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An MRI compatible small bore MRI noninvasive photoplethysmographic sensor for animals comprising:
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a plastic clip attachable to an animal, wherein the clip is configured to have two clip faces on opposed sides the animal tissue; fiber optic cable coupled to the clip, wherein with one fiber optic portion is configured to deliver a signal to the animal tissue on one clip face and one fiber optic portion configured to receive a signal from the animal tissue on an opposed clip face; an opto-electical converter coupled to the fiber optic cable, the converter including a receiver coupled the fiber optic cable portion configured to receive a signal from the animal tissue and including an emitter coupled to the fiber optic portion configured to deliver a signal to the animal tissue; an electronic coupling extending from the opto-electric converter and configured to be coupled to the emitter and the receiver, wherein the electronic coupling is configured to extend outside of the MRI chamber; and a processor coupled to the electronic coupling, wherein the processor is configured to calculate heart rates above beats per minute. - View Dependent Claims (18, 19, 20)
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Specification