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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0647163 (2012-10-08) |
| 등록번호 | US-9420955 (2016-08-23) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 0 인용 특허 : 1038 |
A system for monitoring one or more temperatures at a vessel wall of a vessel of a patient includes an optical fiber, an optical read-out mechanism, and a therapeutic device. The optical fiber may be deployed along an extent of the vessel and may include one or more fiber Bragg grating (FBG) tempera
A system for monitoring one or more temperatures at a vessel wall of a vessel of a patient includes an optical fiber, an optical read-out mechanism, and a therapeutic device. The optical fiber may be deployed along an extent of the vessel and may include one or more fiber Bragg grating (FBG) temperature sensors disposed at one or more corresponding sensor locations along a length of the optical fiber. The optical read-out mechanism may be optically coupled to the optical fiber, and it may be configured to transmit light into the optical fiber and detect light reflected from the one or more FBG temperature sensors. The detected light reflected from the one or more FBG temperature sensors may encode local temperatures at each of the one or more corresponding sensor locations. The therapeutic device may be configured for performing a therapeutic procedure to or through the vessel wall.
1. A system for providing therapy at and for monitoring a plurality of temperatures at a vessel wall of a vessel of a patient, the system comprising: an optical fiber designed to be deployed along an extent of the vessel, the fiber including a plurality of fiber Bragg grating (FBG) temperature senso
1. A system for providing therapy at and for monitoring a plurality of temperatures at a vessel wall of a vessel of a patient, the system comprising: an optical fiber designed to be deployed along an extent of the vessel, the fiber including a plurality of fiber Bragg grating (FBG) temperature sensors disposed at a plurality of corresponding sensor locations along a length of the optical fiber;an optical read-out mechanism optically coupled to the optical fiber, the optical readout mechanism configured to transmit light into the optical fiber and detect light reflected from the plurality of FBG temperature sensors, the detected light reflected from the plurality of FBG temperature sensors encoding local temperatures at each of the plurality of corresponding sensor locations;a therapeutic device capable of performing a therapeutic procedure to or through the vessel wall, the therapeutic device including a plurality of electrodes, wherein each electrode is positioned at a sensor location adjacent an FBG temperature sensor;a support designed to be deployed within the vessel that is capable of substantially fixing the optical fiber within the vessel; andwherein the optical fiber is attached to the support such that each of the plurality of FBG temperature sensors is positioned radially over one of the plurality of electrodes. 2. The system of claim 1, wherein the support is configured to compact for delivery into the vessel, and expand for deployment in the vessel. 3. The system of claim 1, wherein the support is capable of fixing the plurality of FBG temperature sensors against the vessel wall such that each of the plurality of FBG temperature sensors is in thermal contact with the vessel wall at its corresponding sensor location. 4. The system of claim 1, wherein the support has a helical shape, and the optical fiber follows the helical shape of the support. 5. The system of claim 4, wherein the optical fiber and plurality of FBG temperature sensors are integrally housed by the support such that the support, optical fiber, and plurality of FBG temperature sensors present a substantially constant cross-section along a length of the support. 6. The system of claim 1, wherein the optical fiber has a helical region and is designed to be deployed along the extent of the vessel in a helical path. 7. The system of claim 6, wherein the plurality of FBG temperature sensors are substantially equally-spaced-apart along the optical fiber such that, in combination with the helical path along which the optical fiber is deployed, the plurality of FBG temperature sensors are capable of being disposed around the vessel with substantially equal angular displacements between adjacent FBG temperature sensors. 8. The system of claim 7, wherein the substantially equal angular displacements between adjacent FBG temperature sensors are about 90 degrees. 9. The system of claim 7, wherein the substantially equal angular displacements between adjacent FBG temperature sensors are about 60 degrees. 10. The system of claim 6, wherein the pitch of the helical region is between about 5 mm to about 15 mm. 11. The system of claim 1, wherein the optical fiber includes at least one FBG sensor other than the plurality of FBG temperature sensors. 12. The system of claim 1, wherein the electrodes are spaced apart circumferentially around the therapeutic device and wherein the optical fiber is a single element with a helical shape extending around the therapeutic device. 13. A method for monitoring a plurality of temperatures at a vessel wall of a vessel of a patient with an optical fiber having a plurality of fiber Bragg grating (FBG) temperature sensors, the method comprising: deploying the optical fiber along an extent of the vessel such that the optical fiber is disposed against the vessel wall with the plurality of FBG temperature sensors in thermal contact with the vessel wall;wherein a helical support is attached to the optical fiber that maintains the position of the optical fiber in the vessel and positions the FBG temperature sensors against the vessel wall and wherein deploying the optical fiber along an extent of the vessel such that the optical fiber is disposed against the vessel wall with the plurality of FBG temperature sensors in thermal contact with the vessel wall includes deploying the optical fiber along with the integrated helical support;reading-out temperatures detected by the plurality of FBG temperature sensors with an optical read-out mechanism configured to transmit light into the optical fiber and detect light reflected from the plurality of FBG temperature sensors; andperforming a therapeutic procedure with a therapeutic device disposed within the vessel proximal to at least one of the plurality of FBG temperature sensors, wherein performing the therapeutic procedure includes ablating tissue with a plurality of electrodes, wherein each of the plurality of FBG temperature sensors is positioned directly between one of the plurality of electrodes and the vessel wall.
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