최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0229250 (2014-03-28) |
등록번호 | US-9603661 (2017-03-28) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 233 |
A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow
A device positionable in a cavity of a bodily organ (e.g., a heart) may discriminate between fluid (e.g., blood) and non-fluid tissue (e.g., wall of heart) to provide information or a mapping indicative of a position and/or orientation of the device in the cavity. Discrimination may be based on flow, or some other characteristic, for example electrical permittivity or force. The device may selectively ablate portions of the non-fluid tissue based on the information or mapping. The device may detect characteristics (e.g., electrical potentials) indicative of whether ablation was successful. The device may include a plurality of transducers, intravascularly guided in an unexpended configuration and positioned proximate the non-fluid tissue in an expanded configuration. Expansion mechanism may include helical member(s) or inflatable member(s).
1. A method of controlling a catheter system including a frame member comprising a strip that is flexible, the frame member forming at least part of a frame that is selectively moveable between an unexpanded configuration and an expanded configuration, the catheter system further including a plurali
1. A method of controlling a catheter system including a frame member comprising a strip that is flexible, the frame member forming at least part of a frame that is selectively moveable between an unexpanded configuration and an expanded configuration, the catheter system further including a plurality of transducer elements located on the frame, the frame percutaneously deliverable to a bodily chamber in the unexpanded configuration and sized too large for percutaneous delivery to the bodily chamber in the expanded configuration, the method comprising: determining that a first one of the transducer elements and another one of the transducer elements overlap when the frame is in the expanded configuration based at least on a delivery of power, with the frame in the expanded configuration, to at least the first one of the transducer elements, the delivery of power causing at least the first one of the transducer elements to increase in temperature. 2. The method of claim 1 wherein the determining determines, based at least upon the delivery of power, that the first one of the transducer elements and the another one of the transducer elements cross when the frame is in the expanded configuration. 3. The method of claim 1, further comprising determining electrical resistance associated with a particular one of the transducer elements, wherein the determining that the first one of the transducer elements and the another one of the transducer elements overlap when the frame is in the expanded configuration is further based at least on the determined electrical resistance. 4. The method of claim 3, further comprising determining the electrical resistance by measuring a voltage of the particular one of the transducer elements for a given electrical current provided to the particular one of the transducer elements. 5. The method of claim 3, further comprising determining the electrical resistance by measuring an electrical current provided to the particular one of the transducer elements for a given voltage provided to the particular one of the transducer elements. 6. The method of claim 3 wherein the particular one of the transducer elements is other than the first one of the transducer elements. 7. The method of claim 3 wherein the particular one of the transducer elements is the another one of the transducer elements. 8. The method of claim 1 wherein the catheter system comprises a shaft moveable with respect to a catheter member, wherein the frame member is a helical member, and wherein the method further comprises moving the helical member between a radially unexpanded configuration and a radially expanded configuration in response to movement of the shaft with respect to the catheter member, at least two of the transducer elements having a greater spacing therebetween when the helical member is in the radially expanded configuration than when the helical member is in the radially unexpanded configuration. 9. The method of claim 1 wherein the frame member comprises a flexible printed circuit strip comprising at least one electrically conductive trace patterned on an electrically insulative substrate. 10. The method of claim 9 wherein at least some of the transducer elements are patterned on the electrically insulative substrate. 11. The method of claim 1, further comprising activating at least some of the transducer elements to transmit energy sufficient for tissue ablation. 12. A method of controlling a catheter system including a frame member comprising a strip that is flexible, the frame member forming at least part of a frame that is selectively moveable between an unexpanded configuration and an expanded configuration, the frame percutaneously deliverable to a bodily chamber in the unexpanded configuration and sized too large for percutaneous delivery to the bodily chamber in the expanded configuration, the catheter system further including a plurality of transducer elements located on the frame, wherein at least some of the transducer elements are moveable with respect to one another to consequently vary a positioning therebetween when the frame is in the expanded configuration, the method comprising: determining a proximity between a particular one of the transducer elements and another one of the transducer elements based at least on a delivery of power, with the frame in the expanded configuration, to at least the particular one of the transducer elements, the delivery of power causing at least the particular one of the transducer elements to increase in temperature,wherein at least (a) the particular one of the transducer elements, (b) the another one of the transducer elements, or both (a) and (b) is or are included in the at least some of the transducer elements. 13. The method of claim 12, further comprising determining electrical resistance by measuring a voltage of a transducer of the transducer elements for a given electrical current provided to the transducer of the transducer elements, wherein the determining of the proximity between the particular one of the transducer elements and the another one of the transducer elements is further based at least on the determined electrical resistance. 14. The method of claim 12, further comprising determining electrical resistance by measuring an electrical current provided to a transducer of the transducer elements for a given voltage provided to the transducer of the transducer elements, wherein the determining of the proximity between the particular one of the transducer elements and the another one of the transducer elements is further based at least on the determined electrical resistance. 15. The method of claim 12 wherein the catheter system comprises a shaft moveable with respect to a catheter member, wherein the frame member is a helical member, and wherein the method further comprises moving the helical member between a radially unexpanded configuration and a radially expanded configuration in response to movement of the shaft with respect to the catheter member, at least two of the transducer elements having a greater spacing therebetween when the helical member is in the radially expanded configuration than when the helical member is in the radially unexpanded configuration. 16. The method of claim 1wherein the strip that is flexible is a first strip,wherein the frame member comprises a plurality of strips that are flexible including the first strip, each strip of the plurality of strips including an outward-facing surface, at least a respective portion of each outward-facing surface facing away from an interior volume of the frame when the frame is in the expanded configuration, andwherein, when it is determined that the first one of the transducer elements and the another one of the transducer elements overlap when the frame is in the expanded configuration, at least the respective portion of each outward-facing surface of each strip in a first subgroup of the plurality of strips crosses behind at least the respective portion of each outward-facing surface of each strip in a second subgroup of the plurality of strips. 17. The method of claim 16wherein each strip of the plurality of strips includes an inward-facing surface, at least a respective portion of each inward-facing surface facing toward the interior volume of the frame when the frame is in the expanded configuration, andwherein, when it is determined that the first one of the transducer elements and the another one of the transducer elements overlap when the frame is in the expanded configuration, at least the respective portion of each outward-facing surface of each strip in the first subgroup of the plurality of strips crosses behind at least the respective portion of each outward-facing surface of each strip in the second subgroup of the plurality of strips with the respective portions of the outward-facing surfaces of the strips in the first subgroup of the plurality of strips facing toward the respective portions of the inward-facing surfaces of the strips in the second subgroup of the plurality of strips. 18. The method of claim 16 wherein each strip of the plurality of strips comprises a transducer element of the plurality of transducer elements. 19. The method of claim 18 wherein each transducer element of the plurality of transducer elements is configured to sense temperature and ablate tissue. 20. The method of claim 16 wherein each transducer element of the plurality of transducer elements is located on a respective strip of the plurality of strips. 21. The method of claim 16 wherein each strip of the plurality of strips comprises a transducer element of the plurality of transducer elements on the respective portion of the outward-facing surface of the strip. 22. The method of claim 21 wherein each transducer element is configured to sense temperature and ablate tissue. 23. The method of claim 21 wherein each of at least the first one of the transducer elements and the another one of the transducer elements is located on the respective portion of the outward-facing surface of a respective strip of the plurality of strips. 24. The method of claim 1wherein the strip that is flexible is a first strip,wherein the frame member comprises a plurality of strips that are flexible including the first strip, each strip of the plurality of strips including an outward-facing surface, at least a respective portion of each outward-facing surface facing away from an interior volume of the frame when the frame is in the expanded configuration,wherein one of the first one of the transducer elements and the another one of the transducer elements is located on the outward-facing surface of the first strip, andwherein, when it is determined that the first one of the transducer elements and the another one of the transducer elements overlap when the frame is in the expanded configuration, at least the respective portion of the outward-facing surface of a particular strip of the plurality of strips crosses behind at least the respective portion of the outward-facing surface of the first strip in an X configuration. 25. The method of claim 24wherein each strip of the plurality of strips includes an inward-facing surface, at least a respective portion of each inward-facing surface facing toward the interior volume of the frame when the frame is in the expanded configuration, andwherein, when it is determined that the first one of the transducer elements and the another one of the transducer elements overlap when the frame is in the expanded configuration, at least the respective portion of the outward-facing surface of the particular strip of the plurality of strips crosses behind at least the respective portion of the outward-facing surface of the first strip in the X configuration with the respective portion of the outward-facing surface of the particular strip of the plurality of strips facing toward the respective portion of the inward-facing surface of the first strip. 26. The method of claim 24 wherein the other one of the first one of the transducer elements and the another one of the transducer elements is located on the respective portion of the outward-facing surface of the particular strip. 27. The method of claim 11 wherein the at least some of the transducer elements comprise one of the first one of the transducer elements and the another one of the transducer elements. 28. The method of claim 1 wherein each transducer element is configured to sense temperature and ablate tissue. 29. The method of claim 12wherein the strip that is flexible is a first strip,wherein the frame member comprises a plurality of strips that are flexible including the first strip, each strip of the plurality of strips including an outward-facing surface, at least a respective portion of each outward-facing surface facing away from an interior volume of the frame when the frame is in the expanded configuration, andwherein, when the proximity between the particular one of the transducer elements and the another one of the transducer elements is determined, at least the respective portion of each outward-facing surface of each strip in a first subgroup of the plurality of strips crosses behind at least the respective portion of each outward-facing surface of each strip in a second subgroup of the plurality of strips. 30. The method of claim 29wherein each strip of the plurality of strips includes an inward-facing surface, at least a respective portion of each inward-facing surface facing toward the interior volume of the frame when the frame is in the expanded configuration, andwherein, when the proximity between the particular one of the transducer elements and the another one of the transducer elements is determined, at least the respective portion of each outward-facing surface of each strip in the first subgroup of the plurality of strips crosses behind at least the respective portion of each outward-facing surface of each strip in the second subgroup of the plurality of strips with the respective portions of the outward-facing surfaces of the strips in the first subgroup of the plurality of strips facing toward the respective portions of the inward-facing surfaces of the strips in the second subgroup of the plurality of strips. 31. The method of claim 29 wherein each strip of the plurality of strips comprises a transducer element of the plurality of transducer elements. 32. The method of claim 31 wherein each transducer element of the plurality of transducer elements is configured to sense temperature and ablate tissue. 33. The method of claim 29 wherein each transducer element of the plurality of transducer elements is located on a respective strip of the plurality of strips. 34. The method of claim 29 wherein each strip of the plurality of strips comprises a transducer element of the plurality of transducer elements on the respective portion of the outward-facing surface of the strip. 35. The method of claim 34 wherein each transducer element is configured to sense temperature and ablate tissue. 36. The method of claim 34 wherein each of at least the particular one of the transducer elements and the another one of the transducer elements is located on the respective portion of the outward-facing surface of a respective strip of the plurality of strips. 37. The method of claim 12wherein the strip that is flexible is a first strip,wherein the frame member comprises a plurality of strips that are flexible including the first strip, each strip of the plurality of strips including an outward-facing surface, at least a respective portion of each outward-facing surface facing away from an interior volume of the frame when the frame is in the expanded configuration,wherein one of the particular one of the transducer elements and the another one of the transducer elements is located on the outward-facing surface of the first strip, andwherein, when the proximity between the particular one of the transducer elements and the another one of the transducer elements is determined, at least the respective portion of the outward-facing surface of a particular strip of the plurality of strips crosses behind at least the respective portion of the outward-facing surface of the first strip in an X configuration. 38. The method of claim 37wherein each strip of the plurality of strips includes an inward-facing surface, at least a respective portion of each inward-facing surface facing toward the interior volume of the frame when the frame is in the expanded configuration, andwherein, when the proximity between the particular one of the transducer elements and the another one of the transducer elements is determined, at least the respective portion of the outward-facing surface of the particular strip of the plurality of strips crosses behind at least the respective portion of the outward-facing surface of the first strip in the X configuration with the respective portion of the outward-facing surface of the particular strip of the plurality of strips facing toward the respective portion of the inward-facing surface of the first strip. 39. The method of claim 37 wherein the other of the particular one of the transducer elements and the another one of the transducer elements is located on the respective portion of the outward-facing surface of the particular strip. 40. The method of claim 12, further comprising activating one or more of the transducer elements to transmit energy sufficient for tissue ablation, wherein the one or more of the transducer elements comprise one of the particular one of the transducer elements and the another one of the transducer elements. 41. The method of claim 12 wherein each transducer element is configured to sense temperature and ablate tissue.
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