US 10,765,324 B2 · Photoacoustic image generation apparatus and insert

Abstract

There are provided a photoacoustic image generation apparatus and an insert that separately acquire both positional information and surrounding environment information of the insert. A puncture needle is at least partially inserted into a subject. An optical fiber guides light with a first wavelength and light with a second wavelength which are incident while being switched. The light guided by the optical fiber is emitted from a light emitting portion. A light absorption member absorbs the light with the first wavelength emitted from the light emitting portion, generates photoacoustic waves, and transmits the light with the second wavelength emitted from the light emitting portion.

Claims15

Dependent claims

An insert that is at least partially inserted into a subject, comprising:

a light guide member that guides light with a first wavelength and light with a second wavelength different from the first wavelength which are incident while being switched;
a light emitting portion from which the light guided by the light guide member is emitted;
and
a light absorption member that absorbs the light with the first wavelength emitted from the light emitting portion, generates photoacoustic waves, and transmits the light with the second wavelength emitted from the light emitting portion;
wherein:
the insert is a puncture needle having an inner cavity;
the insert further includes a hollow tube in which the light guide member is accommodated;
the puncture needle includes an inner needle and an outer needle;
the inner needle includes the hollow tube;
and
the inner needle seals at least a portion of the inner cavity.

8 more elements

A photoacoustic image generation apparatus comprising:

a first light source that emits light with a first wavelength;
a second light source that emits light with a second wavelength different from the first wavelength;
an insert that is at least partially inserted into a subject and comprises a light guide member that guides the light with the first wavelength and the light with the second wavelength which are incident while being switched, a light emitting portion from which the light guided by the light guide member is emitted, and a light absorption member that absorbs the light with the first wavelength emitted from the light emitting portion, generates photoacoustic waves, and transmits the light with the second wavelength emitted from the light emitting portion;
acoustic wave detection section for detecting first photoacoustic waves which are generated by the absorption of the light with the first wavelength by the light absorption member and second photoacoustic waves which are generated in the subject due to the light emitted from the light emitting portion;
and
photoacoustic image generation section for generating a first photoacoustic image on the basis of the first photoacoustic waves and generating a second photoacoustic image on the basis of the second photoacoustic waves.

3 more elements

Dependencies are inferred from the claim text.

Photoacoustic image generation apparatus and insert

Life of this patent

Photoacoustic image generation apparatus and insert

Life of this patent

Abstract

Claims15