Photothermal actuator and apparatus comprising photothermal actuator
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-001/00
A61B-000/06
G02B-006/00
출원번호
US-0721073
(2003-11-26)
우선권정보
JP-P2002-347032(2002-11-29)
발명자
/ 주소
Masunishi,Kei
출원인 / 주소
PENTAX Corporation
대리인 / 주소
Greenblum &
인용정보
피인용 횟수 :
2인용 특허 :
10
초록▼
A photothermal actuator comprises an optical fiber bundle, a light inputting apparatus, and a thermal receiving element. The optical fiber bundle is inserted in a tube of a catheter etc. The light inputting apparatus inputs light into the optical fiber bundle. The thermal receiving element is provid
A photothermal actuator comprises an optical fiber bundle, a light inputting apparatus, and a thermal receiving element. The optical fiber bundle is inserted in a tube of a catheter etc. The light inputting apparatus inputs light into the optical fiber bundle. The thermal receiving element is provided on a part of an outer surface of the optical fiber bundle. The thermal receiving element is heated by the light so that the thermal receiving element and a part of the optical fiber bundle are stretched, whereby the optical fiber bundle and the tube are bent.
대표청구항▼
The invention claimed is: 1. A photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bun
The invention claimed is: 1. A photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 2. An actuator according to claim 1, wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 3. A guide wire having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 4. A guide wire having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 5. A guide wire according to claim 4, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 6. A guide wire according to claim 4, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 7. A guide wire according to claim 6, wherein said guide wire comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals. 8. A catheter having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 9. A catheter having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 10. A catheter according to claim 9, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 11. A catheter according to claim 9, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 12. A catheter according to claim 11, wherein said guide wire comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals. 13. An endoscope having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 14. An endoscope having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent; wherein said thermal receiving element is provided on an end portion of said optical fiber bundle; and wherein said end portion is cut at an incline to the axis of said optical fiber bundle. 15. An endoscope according to claim 14, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 16. An endoscope according to claim 14, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 17. An endoscope according to claim 16, wherein said endoscope comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals. 18. A photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 19. A guide wire having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 20. A guide wire having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 21. A guide wire according to claim 20, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 22. A guide wire according to claim 20, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 23. A guide wire according to claim 22, wherein said guide wire comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals. 24. A catheter having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 25. A catheter having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 26. A catheter according to claim 25, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 27. A catheter according to claim 25, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 28. A catheter according to claim 27, wherein said guide wire comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals. 29. An endoscope having a photothermal actuator, said photothermal actuator comprising: an optical fiber bundle that is inserted in a tube; a light inputting apparatus that inputs light into said optical fiber bundle; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 30. An endoscope having a tube and some photothermal actuators, each photothermal actuator comprising: an optical fiber bundle in which light is inputted by a light inputting apparatus, said optical fiber bundle being inserted in said tube; and a thermal receiving element that is provided on a part of an outer surface of said optical fiber bundle, said thermal receiving element being heated by said light so that said thermal receiving element and a part of said optical fiber bundle are stretched, whereby said optical fiber bundle and said tube are bent, and wherein said thermal receiving element covers a wedge shaped area of an end portion of said optical fiber bundle. 31. An endoscope according to claim 30, wherein said optical fiber bundles are arranged in a concentric circle in said tube at even intervals. 32. An endoscope according to claim 30, wherein said optical fiber bundles are formed into a group of optical fiber bundles, said optical fibers bundles in said group adjoining each other. 33. An endoscope according to claim 32, wherein said endoscope comprises a plurality of said groups, and said groups are arranged in a concentric circle in said tube at even intervals.
Patrice Minotti FR; Gilles Bourbon FR; Philippe Langlet FR; Takahisa Masuzawa JP; Hiroyuki Fujita JP, Electrostatic microactuators, active three-dimensional microcatheters using same and method for making same.
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