Photoacoustic Needle Insertion Platform
First Claim
1. A device for differentiating tissue, comprising:
- a first laser transmission source that outputs a first laser beam, wherein output from the first laser transmission source is transferred into the tissue;
a second laser transmission source that outputs a second laser beam that has a wavelength that is different than the first laser beam, wherein output from the second laser transmission source is transferred into the tissue;
a needle system for insertion into the tissue, and;
an acoustic receiver that receives acoustic waves that are created upon the transfer of the output of the first and second laser transmission sources into the tissue.
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Accused Products
Abstract
A device for differentiating tissue is provided that has a first laser transmission source that outputs a first laser beam in which output from the first laser transmission source is transferred into tissue. A second laser transmission source is provided that outputs a second laser beam that has a wavelength that is different than the first laser beam. Output from the first and second laser transmission sources is transferred into the tissue. A needle system is present for insertion into the tissue along with an acoustic receiver that receives acoustic waves that are created upon the transfer of the output of the first and second laser transmission sources into the tissue. An associated method is also provided.
11 Citations
20 Claims
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1. A device for differentiating tissue, comprising:
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a first laser transmission source that outputs a first laser beam, wherein output from the first laser transmission source is transferred into the tissue; a second laser transmission source that outputs a second laser beam that has a wavelength that is different than the first laser beam, wherein output from the second laser transmission source is transferred into the tissue; a needle system for insertion into the tissue, and; an acoustic receiver that receives acoustic waves that are created upon the transfer of the output of the first and second laser transmission sources into the tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for differentiating tissue, comprising:
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a needle system for insertion into the tissue; an optical fiber carried by the needle system, wherein an output laser beam exits the optical fiber and is directed into the tissue; and an acoustic receiver that receives acoustic waves that are created upon the transfer of the output laser beam into the tissue. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for identifying different tissue types, comprising the steps of:
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inserting a needle with an optical fiber into biological tissue; transmitting an output laser beam out of the optical fiber and into the biological tissue, wherein the output laser beam is a series of light pulses that have different wavelengths; recording photoacoustic echoes from the biological tissue after each light pulse; using the photoacoustic echoes from at least a subset of the wavelengths to produce photoacoustic signatures over a range of depths; using the photoacoustic signatures to compare with prior collected data of known biological tissues to differentiate the biological tissue; and displaying depth-dependent, differentiated tissue data to a user. - View Dependent Claims (20)
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Specification