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1. 发明授权

US5752513A Method and apparatus for determining position of object 失效
标题翻译：用于确定物体位置的方法和装置
公开(公告)号：US5752513A
公开(公告)日：1998-05-19
申请号：US479671
申请日：1995-06-07
申请人： David E. Acker , Charidimos E. Gasparakis
发明人： David E. Acker , Charidimos E. Gasparakis
IPC分类号： A61B5/06 , G01B7/004 , A61B5/05
CPC分类号： G01B7/004 , A61B5/06
摘要： Apparatus for determining the position of a probe in a sensing volume includes a plurality of magnetic field generating sources for generating different magnetic fields in the sensing volume, where the sources have a planar configuration and are positioned so that they at least partially overlap one another in horizontal extent and so that the sensing volume extends outwardly from the sources. The probe is provided with sensors which detect magnetic field components of fields generated by the sources. The position of the probe can be determined from the detected magnetic components. Methods for determining the probe position are also included.
摘要翻译：用于确定感测体积中的探针的位置的装置包括用于在感测体积中产生不同磁场的多个磁场产生源，其中源具有平面构造并且被定位成使得它们至少部分地彼此重叠水平范围，使得感测体积从源向外延伸。探头上设有传感器，用于检测由源产生的磁场的磁场分量。可以从检测到的磁性成分确定探针的位置。还包括确定探针位置的方法。

2. 发明授权

US06453190B1 Medical probes with field transducers 有权
标题翻译：带现场换能器的医用探头
公开(公告)号：US06453190B1
公开(公告)日：2002-09-17
申请号：US09117802
申请日：1998-12-10
申请人： David E. Acker , Yaniv Bejerano
发明人： David E. Acker , Yaniv Bejerano
IPC分类号： A61B1900
CPC分类号： A61B8/0833 , A61B1/00055 , A61B1/00059 , A61B1/00062 , A61B1/31 , A61B5/042 , A61B5/06 , A61B5/065 , A61B8/0841 , A61B8/4254 , A61B10/02 , A61B17/22012 , A61B17/3403 , A61B17/3415 , A61B34/20 , A61B90/36 , A61B90/39 , A61B90/90 , A61B2017/00482 , A61B2017/00725 , A61B2017/22008 , A61B2018/00178 , A61B2018/00988 , A61B2034/2051 , A61B2034/2072 , A61B2090/0814 , A61B2090/363 , A61B2090/3929 , A61B2090/3958 , A61B2560/0276 , A61B2562/08 , A61M25/0023 , A61M25/0127 , A61M25/10 , A61M2025/0025 , A61M2025/0166 , A61M2025/1052
摘要： A field transducer (30) for determining position or orientation in a medical instrument locating system is placed at an arbitrary position or orientation with respect to a feature (62) of the instrument (46). The transducer (30) may be attached at a arbitrary location on the instrument (46), or the instrument (400, 404) may be bent as desired by the user. A transform relating position or orientation of feature of the instrument to position or orientation of the tranducer is obtained in a caliration cycle. A field transducer may be part of a disposable unit which is irrevocably altered when used with an instrument so that the unit cannot be reused.
摘要翻译：用于确定医疗仪器定位系统中的位置或取向的场传感器（30）被放置在相对于仪器（46）的特征（62）的任意位置或取向。换能器（30）可以附接在仪器（46）上的任意位置，或者仪器（400,404）可以根据用户的需要弯曲。在加速循环中获得将仪器特征的位置或取向与变换器的位置或取向相关联的变换。场传感器可以是一次性单元的一部分，当与仪器一起使用时不可改变地改变，使得该单元不能被重复使用。

3. 发明授权

US06366799B1 Movable transmit or receive coils for location system 有权
标题翻译：用于定位系统的可移动发射或接收线圈
公开(公告)号：US06366799B1
公开(公告)日：2002-04-02
申请号：US09117791
申请日：1998-09-25
申请人： David E. Acker , Joel Zilberstein
发明人： David E. Acker , Joel Zilberstein
IPC分类号： A61B505
CPC分类号： A61B5/06 , A61B5/064 , A61B34/20 , A61B90/10 , A61B90/11 , A61B90/36 , A61B2017/00725 , A61B2034/2051 , A61B2034/2072 , A61B2090/363 , A61B2090/376 , A61B2090/3929 , A61B2090/3958 , A61B2090/3975 , A61B2090/3983
摘要： A system for determining the disposition of a probe within the body of a patient includes a probe having probe field transducers and one or more reference field transducers. The reference field transducers are affixed to a rigid but repositionable frame constructed to allow the transducers to be positioned in close proximity to the body. Non-ionizing fields are transmitted and detected between the probe and reference field transducers, and from the detected fields the relative disposition of the probe with respect to the reference field transducers is determined.
摘要翻译：用于确定在患者体内的探针的布置的系统包括具有探针场传感器和一个或多个参考场传感器的探针。参考场传感器被固定到刚性但可重新定位的框架，该框架被构造成允许换能器定位成靠近身体。在探针和参考场传感器之间传输和检测非电离场，并且从检测的场中确定探针相对于参考场传感器的相对布置。

4. 发明授权

US5928248A Guided deployment of stents 失效
标题翻译：引导部署支架
公开(公告)号：US5928248A
公开(公告)日：1999-07-27
申请号：US30407
申请日：1998-02-25
申请人： David E. Acker
发明人： David E. Acker
IPC分类号： A61B5/06 , A61F2/06 , A61M25/095 , A61F11/00
CPC分类号： A61F2/856 , A61B5/06 , A61B5/743 , A61F2/954 , A61F2002/065
摘要： A stent is placed in a tubular structure of the anatomy such as the vascular or respiratory system by advancing a probe bearing the stent into the body. The disposition of the probe, and hence the disposition of the stent are monitored using a system which transmits non-ionizing fields between a transducer or transducers on the probe and external transducers. The disposition of the stent relative to the tubular structure is depicted showing a representation of the stent superposed on an image of the tubular structure. This provides accurate placement, particularly for complex stents with features such as one or more branches which must be aligned with anatomical features.
摘要翻译：将支架置于诸如血管或呼吸系统的解剖结构的管状结构中，方法是将支架固定到体内。使用在探头上的换能器或外部换能器之间传递非电离场的系统来监测探针的布置，并因此监测支架的布置。示出了支架相对于管状结构的布置，其示出了叠加在管状结构的图像上的支架的表示。这提供了精确的放置，特别是对于具有诸如一个或多个必须与解剖特征对准的分支的特征的复杂支架。

5. 发明授权

US06669655B1 Sonic element and catheter incorporating same 有权
标题翻译：声波元件和导管结合相同
公开(公告)号：US06669655B1
公开(公告)日：2003-12-30
申请号：US09691825
申请日：2000-10-19
申请人： David E. Acker , Alfred Novak
发明人： David E. Acker , Alfred Novak
IPC分类号： A61H100
CPC分类号： A61N7/022 , A61B17/2202 , A61B2017/00243 , A61B2017/22028 , A61N7/02 , A61N2007/0065 , A61N2007/027
摘要： A catheter carrying a radially-expansible ultrasonic transducer is threaded into the circulatory system and then the transducer is actuated to provide ultrasonic energy in a ring-like zone surrounding a blood vessel. Desirably, the transducer is arranged to focus the ultrasonic energy into a narrow, ring-like focal zone having an extent, in the axial direction along the catheter, less than the axial extent of the transducer. The transducer desirably is expanded after threading so that during application of the ultrasonic energy, the transducer bears on the interior wall of a blood vessel through a balloon covering the transducer. The transducer may include one or more resilient spiral elements carrying a flexible piezoelectric material.
摘要翻译：携带径向可膨胀的超声换能器的导管被拧入循环系统中，然后致动换能器以在围绕血管的环状区域中提供超声波能量。理想地，换能器被布置成将超声波能量聚焦到窄的环形聚焦区域中，该区域沿沿着导管的轴向方向的尺寸小于换能器的轴向范围。换能器期望在穿线之后扩大，使得在施加超声能量期间，换能器通过覆盖换能器的气球承载在血管的内壁上。换能器可以包括携带柔性压电材料的一个或多个弹性螺旋元件。

6. 发明授权

US06605084B2 Apparatus and methods for intrabody thermal treatment 有权
公开(公告)号：US06605084B2
公开(公告)日：2003-08-12
申请号：US09815863
申请日：2001-03-23
申请人： David E. Acker , Patrick David Lopath , Todd Fjield , Keith A. Reisinger
发明人： David E. Acker , Patrick David Lopath , Todd Fjield , Keith A. Reisinger
IPC分类号： A61B1804
CPC分类号： A61B17/2202 , A61B2017/00243 , A61B2017/22028 , A61B2017/22054 , A61B2017/22069 , A61N7/022 , A61N2007/0078
摘要： A treatment catheter (10) carries an elongated ultrasonic emitter (20) extending in the lengthwise direction of the catheter. The array is flexible in all directions transverse to the lengthwise direction. The treatment catheter is inserted into a chamber of the heart and brought to a desired configuration such as a substantially closed loop. The treatment catheter is then biased into engagement with the wall of the heart by an expansible balloon (62) or other expansible structure, which may be carried on a separate stabilizer catheter (60). While the treatment catheter is engaged with the heart wall, the array is actuated to ablate tissue along a path having a shape corresponding to the configuration of the treatment catheter.

7. 发明授权

US06492762B1 Ultrasonic transducer, transducer array, and fabrication method 有权
标题翻译：超声波换能器，换能器阵列及制造方法
公开(公告)号：US06492762B1
公开(公告)日：2002-12-10
申请号：US09532614
申请日：2000-03-22
申请人： Bharat B. Pant , Emad S. Ebbini , David E. Acker , Edward Paul Harhen , Todd Fjield
发明人： Bharat B. Pant , Emad S. Ebbini , David E. Acker , Edward Paul Harhen , Todd Fjield
IPC分类号： H01L4108
CPC分类号： G10K11/30 , B06B1/0688 , H01L41/45 , Y10S310/80
摘要： A multi-layer piezoelectric transducer includes a first polymeric layer of piezoelectric material having spaced apart first and second surfaces and a second polymeric layer of piezoelectric material having spaced apart first and second surfaces. A first ground layer overlies the first surface of the first polymeric layer and a second ground layer overlies the first surface of the second polymeric layer. A signal layer is sandwiched between the second surfaces of the first and second polymeric layers.
摘要翻译：多层压电换能器包括具有间隔开的第一和第二表面的压电材料的第一聚合物层和具有间隔开的第一和第二表面的压电材料的第二聚合物层。第一接地层覆盖在第一聚合物层的第一表面上，第二接地层覆盖在第二聚合物层的第一表面上。信号层夹在第一和第二聚合物层的第二表面之间。

8. 发明授权

US06427314B1 Magnetic determination of position and orientation 失效
标题翻译：位置和方向的磁确定
公开(公告)号：US06427314B1
公开(公告)日：2002-08-06
申请号：US09021471
申请日：1998-02-10
申请人： David E. Acker
发明人： David E. Acker
IPC分类号： G05F104
CPC分类号： A61B5/103 , A61B5/062 , A61B5/4528 , A61B34/20 , A61B90/361 , A61B2034/2051 , A61B2034/2072 , A61B2562/0223 , G01R33/0206 , Y10T29/49004 , Y10T29/4902 , Y10T29/49075
摘要： A magnetic position and orientation determining system uses magnetic fields, desirably including uniform fields from Helmholtz coils positioned on opposite sides of a sensing volume and gradient fields generated by the same coils. By monitoring field components detected at the probes during application of these fields, the position and orientation of the probe in the field can be deduced. A representation of the probe can be superposed on a separately acquired image of the subject to show the position and orientation of the probe with respect to the subject.
摘要翻译：磁位置和取向确定系统使用磁场，期望地包括位于感测体积的相对侧上的亥姆霍兹线圈的均匀场和由相同线圈产生的梯度场。通过在应用这些场期间监测在探测器处检测到的场分量，可以推导出探头在场中的位置和取向。探针的表示可以叠加在被摄体的单独获取的图像上，以示出探针相对于被摄体的位置和取向。

9. 发明授权

US6161032A Three-axis coil sensor 有权
标题翻译：三轴线圈传感器
公开(公告)号：US6161032A
公开(公告)日：2000-12-12
申请号：US273683
申请日：1999-03-22
申请人： David E. Acker
发明人： David E. Acker
IPC分类号： A61B5/06 , A61B17/28 , A61B19/00 , A61M25/00 , H01F5/00 , A61B5/05
CPC分类号： H01F5/00 , A61B5/06 , A61B5/062 , A61B34/20 , A61B2017/2905 , A61B2034/2051 , A61B2034/2072 , A61B2090/3983
摘要： The present invention relates to magnetic field sensors used to detect the position and orientation of medical probes within the body of a patient. The sensors of the present invention are especially adapted for use as independently positionable reference transducer assemblies.
摘要翻译：本发明涉及用于检测医疗探针在患者体内的位置和取向的磁场传感器。本发明的传感器特别适用于独立定位的参考换能器组件。

10. 发明授权

US6128522A MRI-guided therapeutic unit and methods 失效
公开(公告)号：US6128522A
公开(公告)日：2000-10-03
申请号：US83414
申请日：1998-05-22
申请人： David E. Acker , Mark Wagshul
发明人： David E. Acker , Mark Wagshul
IPC分类号： A61B5/055 , A61B17/22 , A61B17/225 , A61B19/00 , A61F7/00 , A61N2/00 , A61N7/00 , A61N7/02
CPC分类号： A61N7/02 , A61B34/76 , A61B5/055 , A61B2017/22087 , A61B2034/742 , A61B2090/0472 , A61B2090/374 , A61B90/10 , A61F7/00 , A61N2007/0065 , A61N2007/0078 , A61N2007/0091 , A61N2007/0095
摘要： Magnetic resonance information acquired by a movable magnetic resonance instrument is used to monitor hyperthermia treatments such as tissue ablation. The instrument may include both the magnetic resonance equipment and an energy applicator such as a high intensity focused ultrasound unit. The treatment can be conducted under automatic control after the operator marks a treatment volume on an image of the subject, such as a magnetic resonance image acquired using the movable magnetic resonance instrument. The automatic treatment can be based on interpolation of tissue response curves at plural test points near the treatment volume. The system can also provide automatic supervisory control during manual operation, to prevent application of heat to sensitive anatomical structures.

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