专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5134988A Lens assembly for focusing energy 失效
标题翻译：用于聚焦能量的镜头组件
公开(公告)号：US5134988A
公开(公告)日：1992-08-04
申请号：US734630
申请日：1991-07-23
申请人： James W. Pell , Gerald L. Hansen , William H. Stephens , Alan R. Selfridge
发明人： James W. Pell , Gerald L. Hansen , William H. Stephens , Alan R. Selfridge
IPC分类号： A61B17/22 , G10K11/30 , G10K15/04
CPC分类号： A61B17/2251 , A61B17/2255 , A61B17/2258 , G10K11/30 , G10K15/043
摘要： An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave upper surface and a planar bottom surface allowing the array of piezoelectric elements to be coupled to the bottom surface of the array. The piezoelectric elements receive voltage from the voltage generator and transmit an energy ray through the focussing lens producing a focussed energy beam.
摘要翻译：一种用于聚焦超声波能量的声透镜，其具有换能器，弯曲聚焦透镜和与换能器耦合的电压发生器。传感器由压电晶体元件阵列组成。聚焦透镜具有凹的上表面和平坦的底表面，允许压电元件的阵列耦合到阵列的底表面。压电元件接收来自电压发生器的电压并透过聚焦透镜传输能量射线，产生聚焦的能量束。

2. 发明授权

US5427107A Optical encoder for catheter device 失效
标题翻译：用于导管装置的光学编码器
公开(公告)号：US5427107A
公开(公告)日：1995-06-27
申请号：US163248
申请日：1993-12-07
申请人： Charles Milo , Gerald L. Hansen
发明人： Charles Milo , Gerald L. Hansen
IPC分类号： A61B8/12
CPC分类号： A61B8/12 , A61B8/445 , A61B8/4461
摘要： Disclosed herein is a catheter apparatus which supports high resolution imaging of the interior of a biological conduit. The apparatus includes an imaging atherectomy catheter of the type having a cutter housing attached to the distal end of a catheter. A tissue cutting member and an ultrasonic imaging transducer are disposed within the housing and are secured to the distal end of a rotatable torque cable. An elongated aperture formed along one side of the housing allows ultrasonic imaging and the intrusion of stenotic material which is removed by axially rotating and translating the cutting member. A miniature rotary encoder is slidably coupled to the end of the torque cable within the housing for precisely determining the rotational orientation of the ultrasonic imaging transducer with respect to the elongated aperture. The rotary encoder is read optically via a fiber optical cable which extends through the catheter. Placement of the rotary encoder at the imaging transducer overcomes distortions resulting from instantaneous speed variations between the two ends of the torque cable. The accurate rotational information permits use of ultrasonic imaging transducers having resolution better than 100 microns without significant image distortion.
摘要翻译：本文公开了一种支持生物导管内部的高分辨率成像的导管装置。该装置包括具有连接到导管的远端的切割器壳体的类型的成像粥样斑块切除术导管。组织切割构件和超声波成像换能器设置在壳体内并且固定到可旋转扭矩电缆的远端。沿着壳体的一侧形成的细长孔允许超声成像和通过轴向旋转和平移切割构件而移除的狭窄材料的侵入。微型旋转编码器可滑动地联接到壳体内的转矩电缆的端部，用于精确地确定超声波成像换能器相对于细长孔的旋转取向。旋转编码器通过延伸穿过导管的光纤光缆光学读取。旋转编码器在成像传感器处的放置克服了扭矩电缆两端之间的瞬时速度变化引起的扭曲。精确的旋转信息允许使用具有优于100微米的分辨率的超声成像换能器，而没有显着的图像失真。

3. 发明授权

US5033456A Acoustical lens assembly for focusing ultrasonic energy 失效
标题翻译：用于聚焦超声波能量的声镜组件
公开(公告)号：US5033456A
公开(公告)日：1991-07-23
申请号：US379572
申请日：1989-07-12
申请人： James W. Pell , Gerald L. Hansen , William H. Stephens , Alan R. Selfridge
发明人： James W. Pell , Gerald L. Hansen , William H. Stephens , Alan R. Selfridge
IPC分类号： A61B17/22 , A61B17/225 , G10K11/30 , G10K15/04
CPC分类号： A61B17/2251 , A61B17/2255 , A61B17/2258 , G10K11/30 , G10K15/043
摘要： An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave upper surface and a planar bottom surface allowing the array of piezoelectric elements to be coupled to the bottomsurface of the array. The piezoelectric elements receive voltage from the voltage generator and transmit an energy ray through the focussing lens producing a focussed energy beam.
摘要翻译：一种用于聚焦超声波能量的声透镜，其具有换能器，弯曲聚焦透镜和与换能器耦合的电压发生器。传感器由压电晶体元件阵列组成。聚焦透镜具有凹的上表面和平坦的底表面，允许压电元件的阵列耦合到阵列的底表面。压电元件接收来自电压发生器的电压并透过聚焦透镜传输能量射线，产生聚焦的能量束。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式