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SHAFTS WITH PRESSURE RELIEF IN CRYOTHERAPEUTIC CATHETERS AND ASSOCIATED DEVICES, SYSTEMS, AND METHODS
专利权人:
MEDTRONIC ARDIAN LUXEMBOURG S.A.R.L.
发明人:
NASH, STEPHEN,KELLY, GRACE
申请号:
CA2870029
公开号:
CA2870029A1
申请日:
2013.04.24
申请国别(地区):
CA
年份:
2013
代理人:
摘要:
Cryotherapeutic systems with features that can facilitate pressure relief in the event of exhaust-passage blockage and associated devices, systems, and methods are disclosed herein. A cryotherapeutic system configured in accordance with a particular embodiment can include an elongated shaft having a distal portion and a pressure-relief portion proximal to the distal portion. The cryotherapeutic system can further include a supply lumen, an exhaust passage, and a balloon configured to receive refrigerant from the supply lumen and to exhaust refrigerant to the exhaust passage. The pressure-relief portion can be configured to release refrigerant from the exhaust passage when a pressure of refrigerant in the exhaust passage exceeds a threshold pressure less than a pressure rating of the balloon. The pressure-relief portion, for example, can include a rupture element configured to rupture at about the threshold pressure.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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