Electron beam radiation device and electron beam radiation method

US2025205517A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025205517-A1
Application numberUS-202318847682-A
CountryUS
Kind codeA1
Filing dateJan 25, 2023
Priority dateMar 23, 2022
Publication dateJun 26, 2025
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An electron beam irradiation device includes an arrangement unit that arranges an irradiation target containing a prodrug therein, and an irradiation unit configured to irradiate the prodrug inside the irradiation target arranged in the arrangement unit with an electron beam having an energy higher than 1 MeV to change the prodrug into an active substance.

First claim

Opening claim text (preview).

1 . An electron beam irradiation device comprising: a target holder configured to arrange an irradiation target containing a prodrug therein; and an irradiation device configured to irradiate the prodrug inside the irradiation target arranged in the target holder with an electron beam having an energy higher than 1 MeV, to change the prodrug into an active substance. 2 . The electron beam irradiation device according to claim 1 , further comprising a first application device configured to apply an external magnetic field along a traveling direction of the electron beam to the electron beam. 3 . The electron beam irradiation device according to claim 1 , wherein the irradiation device includes an electron beam source configured to generate the electron beam having an energy chirp, and a chirp adjustment device configured to adjust the energy chirp of the electron beam generated by the electron beam source such that the energy chirp is arranged at a rear in a beam traveling direction as an energy component becomes higher. 4 . The electron beam irradiation device according to claim 1 , wherein the electron beam has a pulse width of sub-picoseconds or less. 5 . The electron beam irradiation device according to claim 1 , further comprising: an input device configured to input prodrug information on the prodrug; and a controller configured to control time structures of a plurality of electron pulses included in the electron beam emitted by the irradiation device, based on the prodrug information. 6 . The electron beam irradiation device according to claim 1 , wherein the irradiation device is configured to emit the electron beam in which orientations of spins are aligned. 7 . The electron beam irradiation device according to claim 2 , further comprising a second application device configured to apply an external electric field or an external magnetic field to the prodrug inside the irradiation target arranged in the target holder such that orientations of polarities of the prodrug are aligned. 8 . The electron beam irradiation device according to claim 1 , wherein the irradiation device is configured to irradiate the prodrug inside the irradiation target arranged in the target holder with the electron beam from a plurality of directions. 9 . An electron beam irradiation method comprising: arranging an irradiation target containing a prodrug therein in a target holder; and irradiating the prodrug inside the irradiation target arranged in the target holder with an electron beam having an energy higher than 1 MeV, to change the prodrug into an active substance. 10 . The electron beam irradiation method according to claim 9 , wherein the target holder comprises a patient table. 11 . The electron beam irradiation method according to claim 9 , wherein the target holder comprises a test tube holder. 12 . The electron beam irradiation device according to claim 1 , wherein the target holder comprises a patient table. 13 . The electron beam irradiation device according to claim 1 , wherein the target holder comprises a test tube holder.

Assignees

Inventors

Classifications

  • Enhancing the effect of the particle by an injected agent or implanted device · CPC title

  • Electrons · CPC title

  • with beam-forming means · CPC title

  • A61N5/1077Primary

    Beam delivery systems · CPC title

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Frequently asked questions

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What does patent US2025205517A1 cover?
An electron beam irradiation device includes an arrangement unit that arranges an irradiation target containing a prodrug therein, and an irradiation unit configured to irradiate the prodrug inside the irradiation target arranged in the arrangement unit with an electron beam having an energy higher than 1 MeV to change the prodrug into an active substance.
Who is the assignee on this patent?
Univ Osaka
What technology area does this patent fall under?
Primary CPC classification A61N5/1077. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Thu Jun 26 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).