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US 10,568,603 B2Granted
Photoacoustic measurement device and puncture needle
AssigneeFUJIFILM Corporation
InventorsKaku Irisawa, Kazuhiro Tsujita
Life of this patent
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Abstract
A photoacoustic measurement device having a puncture needle, where the puncture needle 14 is a hollow needle that has an opening formed at a tip thereof. The puncture needle 14 includes a puncture needle body 31 and a light guide 32. The light guide 32 extends in a longitudinal direction of the puncture needle body. The light guide 32 emits light at least in part to the puncture needle body 31 while guiding light emitted from a light source toward the tip of the puncture needle body.
Claims6
A puncture needle comprising:
- a hollow puncture needle body that has an opening formed at a tip thereof;
- a light guide that extends in a longitudinal direction of the hollow puncture needle body and emits light at least in part to the hollow puncture needle body while guiding light emitted from a light source toward the tip of the hollow puncture needle body;
- and
- a tube that covers the hollow puncture needle body and the light guide,
- wherein the hollow puncture needle body is metal,
- wherein the light guide is disposed outside the hollow puncture needle body,
- wherein the tube has a property that allows acoustic waves to be transmitted,
- wherein the light guide is bonded to the hollow puncture needle body by an adhesive having light absorbency,
- wherein the light guide includes an optical fiber of which a clad of at least a part of a portion coming into contact with the hollow puncture needle body is removed, and
- wherein the adhesive generates photoacoustic waves when the adhesive absorbs the guiding light.
7 more elements
Dependencies are inferred from the claim text.