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Photodynamic Therapy Device
| Content Provider | The Lens |
|---|---|
| Related Links | https://www.lens.org/images/patent/EP/3932479/B1/EP_3932479_B1.pdf |
| Language | English |
| Publisher Date | 2023-07-26 |
| Access Restriction | Open |
| Alternative Title | Vorrichtung Für Photodynamische Therapie Dispositif De Thérapie Photodynamique |
| Content Type | Text |
| Resource Type | Patent |
| Date Applied | 2019-02-25 |
| Agent | Hoffmann Eitle |
| Applicant | Otsuka Denshi Kk |
| Application No. | 19916662 |
| Claim | A photodynamic therapy device, comprising: a light emitting unit including a plurality of light sources each belonging to any one of a plurality of groups; a photodetector configured to output an electrical signal corresponding to an amount of light received from one or more of the plurality of light sources; a light emission control unit configured to sequentially cause the plurality of light sources to emit light for each group; the photodynamic therapy device being characterised by further comprising: a computing unit configured to calculate, based on a distance coefficient related to a distance between the photodetector and one or more of the plurality of light sources belonging to the each group, and on a value of the electrical signal output by the photodetector in accordance with light emitted from the one or more of the plurality of light sources belonging to the each group, a group light amount value related to a light amount of the one or more of the plurality of light sources belonging to the each group. The photodynamic therapy device according to claim 1, wherein the each group is arranged in each different region. The photodynamic therapy device according to claim 2, wherein regions in each of which the each group is arranged are arrayed in a detecting direction of the photodetector. The photodynamic therapy device according to claim 3, wherein a plurality of light sources arrayed in an intersecting direction intersecting with the detecting direction belong to the each group. The photodynamic therapy device according to claim 4, wherein the photodetector includes a plurality of photodetection elements arranged so as to be spaced apart from each other in the intersecting direction, and wherein the computing unit is configured to calculate the group light amount value further based on a relative angle coefficient related to a relative angle of the plurality of light sources belonging to the each group with respect to a detecting direction of each of the plurality of photodetection elements. The photodynamic therapy device according to any one of claims 1 to 5, wherein the photodetector includes a first photodetector and a second photodetector which are arranged so as to face each other in a detecting direction of each of the first photodetector and the second photodetector, and wherein the light emitted from the one or more of the plurality of light sources belonging to the each group is received by one of the first photodetector and the second photodetector which is arranged farther therefrom so that the electrical signal is output. The photodynamic therapy device according to any one of claims 1 to 6, wherein the computing unit is configured to calculate a sum or an average value of the group light amount values relating to the plurality of groups, respectively, as a value related to a total light amount of the light emitting unit. The photodynamic therapy device according to claim 7, wherein the computing unit is configured to adjust, when the value related to the total light amount is outside of a reference range, a light amount of one or more of the light emitting elements belonging to at least one of the plurality of groups. The photodynamic therapy device according to claim 7, wherein the computing unit is configured to output a notification of an error when the value related to the total light amount is outside of a reference range. |
| CPC Classification | Devices For Introducing Media Into; Or Onto; The Body ;Devices For Transducing Body Media Or For Taking Media From The Body ;Devices For Producing Or Ending Sleep Or Stupor Electrotherapy;Magnetotherapy;Radiation Therapy;Ultrasound Therapy |
| Extended Family | 148-105-620-062-826 179-392-615-349-880 028-709-455-713-467 133-048-224-843-695 118-765-972-685-184 055-123-959-513-136 071-612-809-791-12X 137-692-318-673-466 037-681-062-859-101 119-131-418-963-96X 110-711-203-656-472 166-768-358-842-762 174-528-097-572-131 168-474-841-245-537 105-116-153-096-480 159-267-762-041-423 123-632-822-745-024 087-879-332-011-918 039-057-283-620-536 013-237-159-615-179 007-527-137-805-690 096-338-906-390-078 108-153-735-674-035 112-420-988-722-11X |
| Patent ID | 3932479 |
| Inventor/Author | Kajiwara Shinpei Kikuchi Fumito |
| IPC | A61N5/06 A61M1/36 |
| Status | Active |
| Simple Family | 037-681-062-859-101 179-392-615-349-880 137-692-318-673-466 133-048-224-843-695 071-612-809-791-12X 055-123-959-513-136 118-765-972-685-184 028-709-455-713-467 148-105-620-062-826 119-131-418-963-96X 110-711-203-656-472 174-528-097-572-131 166-768-358-842-762 013-237-159-615-179 087-879-332-011-918 159-267-762-041-423 123-632-822-745-024 105-116-153-096-480 039-057-283-620-536 168-474-841-245-537 096-338-906-390-078 007-527-137-805-690 108-153-735-674-035 112-420-988-722-11X |
| CPC (with Group) | A61M1/3683 A61N5/062 A61N2005/0652 A61N2005/0628 A61M1/36226 A61M2205/18 |
| Issuing Authority | European Patent Office (EPO) |
| Kind | Patent/Patent 1st level of publication/Inventor's certificate |
