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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0971415 (1997-11-17) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 197 인용 특허 : 241 |
An ablation apparatus includes an introducer with a distal end sufficiently sharp to penetrate tissue. An energy delivery device is configured to be coupled to an energy source. The energy delivery device includes a first electrode and a second electrode each with a tissue piercing distal portion. T
An ablation apparatus includes an introducer with a distal end sufficiently sharp to penetrate tissue. An energy delivery device is configured to be coupled to an energy source. The energy delivery device includes a first electrode and a second electrode each with a tissue piercing distal portion. The first and second electrodes are at least partially positionable in the introducer and deployable from the introducer at a selected tissue site to an expanded state. In the expanded state the deployed first and second electrodes distend laterally away from the introducer with a radius of curvature to form a shaped array of deployed electrodes at the tissue site when positioned at the selected tissue site. The first electrode distal portion and the second electrode distal portion are each at least partially made of a shaped memory alloy material that displays stress induced martensite behavior above body temperature. A cable couples the energy source to the energy delivery device.
[ What is claimed is:] [1.] An ablation apparatus, comprising:an introducer including with a distal end sufficiently sharp to penetrate tissue;an energy delivery device configured to be coupled to an energy source, the energy delivery device including a first electrode and a second electrode each ha
[ What is claimed is:] [1.] An ablation apparatus, comprising:an introducer including with a distal end sufficiently sharp to penetrate tissue;an energy delivery device configured to be coupled to an energy source, the energy delivery device including a first electrode and a second electrode each having a tissue piercing distal portion, the first and second electrodes being at least partially positionable in the introducer and deployable from the introducer at a selected tissue site to an expanded state of deployed first and second electrodes that distend laterally away from the introducer with a radius of curvature to form a shaped array of deployed electrodes at the tissue site when positioned at the selected tissue site, wherein the first electrode distal portion and the second electrode distal portion are each at least partially made of a shaped memory alloy material that displays stress induced martensite behavior above body temperature; anda cable coupling the energy source to the energy delivery device.
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