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1. 发明授权

US06289740B1 Integrated fiber optic strain sensing using low-coherence wavelength-encoded addressing 失效
标题翻译：使用低相干波长编码寻址的集成光纤应变传感
公开(公告)号：US06289740B1
公开(公告)日：2001-09-18
申请号：US09185027
申请日：1998-10-26
申请人： Ralph Posey, Jr. , Alan D. Kersey , Michel J. LeBlanc , Michael A. Davis
发明人： Ralph Posey, Jr. , Alan D. Kersey , Michel J. LeBlanc , Michael A. Davis
IPC分类号： G01L124
CPC分类号： G01L1/246 , G01D5/35316 , G01D5/35335
摘要： A system is disclosed for measuring strain using a technique of detecting the optical path difference in a sensing interferometer using an interrogating interferometer including a chirped fiber Bragg grating in which the optical path difference in the sensing interferometer is changed with the strain in the sensing arm, whereas the optical path difference of the interrogating interferometer is changed only by changing the center wavelength of addressing light, making use of the wavelength-dependency on the penetration depth inside the chirped fiber Bragg grating interferometer. Consequently, strain in the sensing interferometer can be assessed by determining the wavelength in which a coherence matched condition between the sensing and interrogation interferometers is attained.
摘要翻译：公开了一种用于使用检测干涉仪中的光程差的技术来测量应变的系统，该技术使用包括啁啾光纤布拉格光栅的询问干涉仪，其中感测干涉仪中的光程差随传感臂中的应变而改变，而询问干涉仪的光程差仅通过改变寻址光的中心波长而改变，利用与啁啾光纤布拉格光栅干涉仪内的穿透深度的波长依赖关系。因此，可以通过确定获得感测和询问干涉仪之间的相干匹配条件的波长来评估感测干涉仪中的应变。

2. 发明授权

US5339833A Swivel exchange guidewire 失效
标题翻译：旋转交换导线
公开(公告)号：US5339833A
公开(公告)日：1994-08-23
申请号：US748037
申请日：1991-08-21
申请人： William A. Berthiaume , Michel J. LeBlanc
发明人： William A. Berthiaume , Michel J. LeBlanc
IPC分类号： A61M25/01 , A61B5/00
CPC分类号： A61M25/0172 , A61M25/0905 , A61M25/0133 , A61M25/0136
摘要： An exchange length guidewire for use in percutaneous transluminal coronary angioplasty is formed in two sections including a proximal section and a distal section. The proximal end of the distal section is rotatably attached to the distal end of the proximal section so that it may be rotated freely with respect to the proximal section. The proximal section may be maintained in a coiled configuration in a storage hoop while the distal portion may be used as a steerable guidewire to assist in navigating a catheter to the intended vascular treatment site. When it is desired to perform a catheter exchange, the proximal section is removed from the storage hoop to permit the wire to extend to its full exchange length, typically slightly more than twice the length of the catheter. The catheter exchange then may be performed. Thereafter, the proximal section of the exchange wire may be reinserted into the storage hoop and while the distal portion may continue to serve as a steerable guidewire.
摘要翻译：用于经皮腔内冠状动脉血管成形术的交换长度导线形成在包括近端部分和远端部分的两个部分中。远端部分的近端可旋转地附接到近端部分的远端，使得其可以相对于近端部分自由旋转。近端部分可以保持在存放箍中的盘绕构造中，而远端部分可以用作可转向导丝，以帮助将导管导航到预期的血管治疗部位。当需要执行导管更换时，将近端部分从储存环上移除，以允许电线延伸到其完全交换长度，通常略高于导管长度的两倍。然后可以执行导管交换。此后，交换线的近侧部分可以重新插入到存储环中，并且远端部分可以继续用作可引导导丝。

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