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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0949014 (2004-09-24) |
등록번호 | US-7303560 (2007-12-04) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 20 인용 특허 : 476 |
A system and method for positioning a medical instrument at a desired biological target tissue site is provided. The system includes an elongated sheath having a deflectable distal end configured to deflect or otherwise position at least a portion of a medical instrument during a surgical procedure
A system and method for positioning a medical instrument at a desired biological target tissue site is provided. The system includes an elongated sheath having a deflectable distal end configured to deflect or otherwise position at least a portion of a medical instrument during a surgical procedure allowing for the placement of the deflected portion adjacent or proximate to a predetermined target tissue surface. The positioning system may be incorporated into the medical instrument. The medical instrument may be an ablation system.
What is claimed is: 1. A method of positioning a medical instrument within a patient's body using a guide sheath having a sharp tip at a deflectable distal end during a surgical procedure, comprising the steps of: introducing into the patient's body the guide sheath having the deflectable distal en
What is claimed is: 1. A method of positioning a medical instrument within a patient's body using a guide sheath having a sharp tip at a deflectable distal end during a surgical procedure, comprising the steps of: introducing into the patient's body the guide sheath having the deflectable distal end and having a longitudinal axis and at least one lumen passing therethrough that is aligned along the longitudinal axis near the distal end; dissecting tissue with the sharp tip; deflecting the deflectable distal end of the sheath within the patient's body; introducing the medical instrument into the guide sheath positioned within the patient's body toward a target tissue site; and advancing the distal end of the medical instrument through the at least one lumen to the deflectable distal end thereof for positioning at least a portion of the medical instrument within the deflected distal end of the guide sheath near the target tissue site. 2. The method of claim 1 wherein deflecting the deflectable distal end includes deflecting by an angular amount skewed from the longitudinal axis of about 180째. 3. The method of claim 1 wherein dissecting tissue comprises advancing the sharp tip to extend distally past the deflectable distal end. 4. The method of claim 1 wherein the medical instrument includes a tissue-ablating element and the method further comprises positioning the tissue-ablating element within the deflectable distal end.
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