发明名称 |
Balloon Catheter With Integrated Optical Sensor For Determining Balloon Diameter |
摘要 |
An apparatus and method for determining an expanded diameter of a catheter balloon. An optical sensor includes an elongated optical fiber with at least one diffraction grating formed in a core of a distal portion thereof. The fiber distal portion is coupled to the inflatable balloon. Broadband light is transmitted to the diffraction grating by an optical interrogator. A portion of the light is reflected from the diffraction grating and is received by a wavelength detector. The wavelength of the reflected portion of light is dependent on the strain applied to the diffraction grating. The wavelength detector determines the strain in the balloon and correlates the strain to the diameter of the balloon.
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申请公布号 |
US2012271339(A1) |
申请公布日期 |
2012.10.25 |
申请号 |
US201113091319 |
申请日期 |
2011.04.21 |
申请人 |
O'BEIRNE PATRICIA;JAMOUS ARAM;KELLY JOHN;MEDTRONIC VASCULAR, INC. |
发明人 |
O'BEIRNE PATRICIA;JAMOUS ARAM;KELLY JOHN |
分类号 |
A61M29/02 |
主分类号 |
A61M29/02 |
代理机构 |
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代理人 |
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地址 |
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