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. 发明申请

WO1994015228A1 TOMOGRAPHY 审中-公开
标题翻译：层析成像
公开(公告)号：WO1994015228A1
公开(公告)日：1994-07-07
申请号：PCT/GB1993002564
申请日：1993-12-16
申请人： BRITISH TECHNOLOGY GROUP LIMITED , BARBER, David, Charles , BROWN, Brian, Hilton
发明人： BRITISH TECHNOLOGY GROUP LIMITED
IPC分类号： G01T01/29
CPC分类号： A61B5/0536
摘要： To improve the reliability of the image or to selectively enhance parts of the image produced by way of a tomographic technique such as electrical impedance tomography (EIT), also known as applied potential tomography (APT), the method and apparatus of the invention provides that the electrical signal measurements be made over varying periods of time. The manner of variation can be related to the relative positions of drive and receive electrode pairs or to the output signal size, either as theoretically expected or as actually measured. The invention can be applied to serial or to parallel data collection techniques.
摘要翻译：为了提高图像的可靠性或者通过诸如电阻抗断层扫描（EIT），也称为应用电位层析成像（APT）的断层摄影技术产生的图像的部分选择性地提高，本发明的方法和装置提供了在不同的时间段内进行电信号测量。变化的方式可以与驱动和接收电极对的相对位置或输出信号大小相关，无论是理论预期的还是实际测量的。本发明可以应用于串行或并行数据收集技术。

2. 发明申请

WO1993000038A1 APPLIED POTENTIAL TOMOGRAPHY 审中-公开
标题翻译：应用潜在的TOMOGRAPHY
公开(公告)号：WO1993000038A1
公开(公告)日：1993-01-07
申请号：PCT/GB1992001156
申请日：1992-06-26
申请人： BRITISH TECHNOLOGY GROUP LIMITED , BROWN, Brian, Hilton , BARBER, David, Charles , McARDLE, Francis, Joseph
发明人： BRITISH TECHNOLOGY GROUP LIMITED
IPC分类号： A61B05/05
CPC分类号： A61B5/0536 , A61B5/04085
摘要： In an APT method, the surface-contact electrodes are located in a closed loop or rosette array on one planar, or nominally planar, skin surface of a body to be investigated, and electrically connected to data acquisition and processing equipment. The invention also includes apparatus for carrying out this method, comprising an array of surface-contact electrodes (8), adapted to be applied to the skin of a body to be investigated, the electrodes (8) being arranged on a flexible carrier (10) in a closed loop, or rosette formation on one common plane, or nominal plane.
摘要翻译：在APT方法中，表面接触电极位于待研究的身体的一个平面或标称平面的皮肤表面上的闭环或玫瑰花阵列中，并且电连接到数据采集和处理设备。本发明还包括用于执行该方法的装置，包括适于施加到被研究体的皮肤上的表面接触电极阵列（8），所述电极（8）布置在柔性载体（10 ），或在一个公共平面或标称平面上形成玫瑰花结。

3. 发明申请

WO1991019454A1 REAL-TIME ELECTRICAL IMPEDANCE TOMOGRAPHY SYSTEM 审中-公开
标题翻译：实时电阻测量系统
公开(公告)号：WO1991019454A1
公开(公告)日：1991-12-26
申请号：PCT/GB1991000915
申请日：1991-06-07
申请人： BROWN, Brian, Hilton , BARBER, David, Charles
IPC分类号： A61B05/05
CPC分类号： A61B5/0536
摘要： A method of, and apparatus for, real-time imaging are described employing a plurality of contact electrodes (1) located for example around the thorax (2) with simultaneous measurement of voltage differences at adjacent pairs of electrodes (1), digital demodulation of the voltages, and measurement and division of the drive current into the voltage measurements before image reconstruction by the use of transputers (20, 22, 24 and 26).

4. 发明专利

GB2246634A REAL-TIME ELECTRICAL IMPEDANCE TOMOGRAPHY 未知
公开(公告)号：GB2246634A
公开(公告)日：1992-02-05
申请号：GB9111793
申请日：1991-06-10
申请人： BROWN BRIAN HILTON , BARBER DAVID CHARLES
发明人： BROWN BRIAN HILTON , BARBER DAVID CHARLES
IPC分类号： A61B5/05 , A61B5/053
摘要： A method of, and apparatus for, real-time imaging are described employing a plurality of contact electrodes (1) located for example around the thorax (2) with simultaneous measurement of voltage differences at adjacent pairs of electrodes (1), digital demodulation of the voltages, and measurement and division of the drive current into the voltage measurements before image reconstruction by the use of transputers (20, 22, 24 and 26).

5. 发明专利

GB2119520A TOMOGRAPHY 未知
公开(公告)号：GB2119520A
公开(公告)日：1983-11-16
申请号：GB8311065
申请日：1983-04-22
申请人： BROWN BRIAN HILTON , BARBER DAVID CHARLES , FREESTON IAN LESLIE , UNIV SHEFFIELD
发明人： BROWN BRIAN HILTON , BARBER DAVID CHARLES , FREESTON IAN LESLIE
IPC分类号： A61B5/05 , A61B5/053
摘要： Tomography images (I1 and I2) of a body are constructed by placing a plurality of surface electrodes (1 to 16) at spaced intervals on the body (M), causing currents to flow in the body (e.g. by applying a potential between each pair of electrodes in turn, or by induction), and measuring the potential between pairs of electrodes, calculating the potential expected in each case on the assumption that the body consists of a medium of uniform impedance, plotting the isopotentials corresponding to the calculated results to create a uniform image of the body, obtaining the ratio between the measured potential and the calculated potential in each case, and modifying the image in accordance with the respective ratios by increasing the assumed impedance along an isopotential in proportion to a ratio greater than unity or decreasing the assumed impedance in proportion to a ratio less than unity. The modified impedances along the isopotentials for each pair of electrodes are superimposed. The calculations are carried out using a computer and the plotting is carried out by a visual display unit (VDU) and/or a print-out unit.

6. 发明申请

WO1997020499A1 IMPEDANCE PNEUMOGRAPHY 审中-公开
标题翻译：阻抗PNEUMOGRAPHY
公开(公告)号：WO1997020499A1
公开(公告)日：1997-06-12
申请号：PCT/GB1996003013
申请日：1996-12-05
申请人： BRITISH TECHNOLOGY GROUP LIMITED , BROWN, Brian, Hilton
发明人： BRITISH TECHNOLOGY GROUP LIMITED
IPC分类号： A61B05/08
CPC分类号： A61B5/0809
摘要： The invention concerns a method and apparatus for monitoring respiratory condition by impedance pneumography. An electrical signal is applied at a plurality of frequencies to a human subject by way of a first pair of spaced electrodes applied to the trunk of the body, whilst the resulting electrical signal is monitored at said plurality of frequencies at different points on the body by way of a second pair of spaced electrodes. From the resulting electrical signal a measure of the impedance of a part of the body at the plurality of frequencies is obtained, and a difference signal representing the impedance change with frequency is calculated. The difference signal is normalised with respect to a signal representative of the impedance measure itself at one or more frequencies, thereby suppressing the effect of those impedance signal components -such as movement artefact- whose frequency dependent change is substantially proportional to the impedance signal value. The invention improves the reliability of impedance pneumography, especially when employed in situations in which it is difficult to restrict subject movement, such as during sleep. It has particular application in neonatal and infant sleep apnoea detection systems.
摘要翻译：本发明涉及通过阻抗气象学监测呼吸状态的方法和装置。电信号通过施加到身体躯干的第一对隔开的电极以多个频率被施加到人类受试者，而所得到的电信号是以身体上不同点的所述多个频率被监测的第二对间隔电极的方式。从得到的电信号中，获得身体在多个频率处的阻抗的测量，并且计算表示阻抗随频率变化的差信号。差分信号相对于代表一个或多个频率的阻抗测量本身的信号被归一化，从而抑制那些阻抗信号分量的影响，例如其频率相关变化基本上与阻抗信号值成比例的运动伪影。本发明提高了阻抗气象学的可靠性，特别是当在难以限制被摄体运动的情况下使用时，例如在睡眠期间。它特别适用于新生儿和婴儿睡眠呼吸暂停检测系统。

7. 发明申请

WO1989009564A1 TOMOGRAPHY 审中-公开
标题翻译：层析成像
公开(公告)号：WO1989009564A1
公开(公告)日：1989-10-19
申请号：PCT/GB1989000363
申请日：1989-04-10
申请人： THE UNIVERSITY OF SHEFFIELD , BROWN, Brian, Hilton , BARBER, David, Charles
发明人： THE UNIVERSITY OF SHEFFIELD
IPC分类号： A61B05/05
CPC分类号： A61B5/0536
摘要： A method of determining the external shape of a body comprises placing a plurality of electrodes adjacent the surface at spaced intervals round the body, causing currents to flow in the body by applying an electrical potential between pairs of electrodes in turn, measuring potentials between other pairs of electrodes, relating the measured potentials to the distances between the corresponding points of current introduction and of potential measurement, and determining electrode positions consistent with these distances, which electrode positions define the external shape of the body.

8. 发明申请

WO2006129116A1 APPARATUS FOR MEASURING TISSUE SAMPLES ELECTRICAL IMPEDANCE 审中-公开
标题翻译：用于测量组织样品电气阻抗的装置
公开(公告)号：WO2006129116A1
公开(公告)日：2006-12-07
申请号：PCT/GB2006/002038
申请日：2006-06-02
申请人： SHEFFIELD TEACHING HOSPITALS NHS FOUNDATION TRUST , THE UNIVERSITY OF SHEFFIELD , BROWN, Brian, Hilton , TIDY, John, Anthony
发明人： BROWN, Brian, Hilton , TIDY, John, Anthony
IPC分类号： A61B5/053
CPC分类号： A61B5/053
摘要： Apparatus for measuring the electrical impedance of a tissue sample comprises a probe and a sheath comprising an elongated tubular body having one closed end and one open end providing an internal cavity. The sheath is composed of a material which when contacted with a tissue sample is capable of providing a conductive path through the sheath between the electrodes and the tissue sample. The resistivity of the material forming the sheath when contacted with the tissue sample is greater than the resistivity of the tissue sample. The probe is received within the internal cavity of the sheath. The sheath is impervious to bacteria and viruses.
摘要翻译：用于测量组织样本的电阻抗的装置包括探针和护套，其包括具有一个封闭端的细长管状体和提供内部空腔的一个开口端。护套由当与组织样本接触能够提供通过电极和组织样本之间的护套的导电路径的材料构成。当与组织样品接触时，形成护套的材料的电阻率大于组织样品的电阻率。探针被容纳在护套的内腔内。鞘不透细菌和病毒。

9. 发明申请

WO2006129108A1 METHOD AND PROBE FOR MEASURING THE IMPEDANCE OF HUMAN OR ANIMAL BODY TISSUE 审中-公开
标题翻译：用于测量人体或动物体组织阻碍的方法和探针
公开(公告)号：WO2006129108A1
公开(公告)日：2006-12-07
申请号：PCT/GB2006/002026
申请日：2006-06-02
申请人： SHEFFIELD TEACHING HOSPITALS NHS FOUNDATION TRUST , THE UNIVERSITY OF SHEFFIELD , BROWN, Brian, Hilton , TIDY, John, Anthony
发明人： BROWN, Brian, Hilton , TIDY, John, Anthony
IPC分类号： A61B5/053
CPC分类号： A61B5/053
摘要： A method for determining whether a probe for measuring the impedance of human or animal body tissue has been placed over a boundary between different tissue types is described. The probe used in the method comprises at least a first (16), a second (22), a third (18) and a fourth (20) electrode arranged such that the third (18) and fourth (20) electrodes are each located substantially the same distance from both the first (16) and second (22) electrodes. The method comprises: driving a current between the first (16) and the second (22) electrodes; measuring a first value of an electrical parameter between the third (18) and the fourth (20) electrode; and determining whether the probe has been placed over a boundary between different tissue types based on the first value. A probe for carrying out the method is also described.
摘要翻译：描述了用于确定用于测量人或动物体组织的阻抗的探针是否已经放置在不同组织类型之间的边界上的方法。在该方法中使用的探针包括至少第一（16），第二（22），第三（18）和第四（20）电极，其布置成使得第三电极（18）和第四（20）与第一电极（16）和第二电极（22）基本上相同的距离。该方法包括：驱动第一电极（16）和第二电极（22）之间的电流; 测量第三（18）和第四（20）电极之间的电参数的第一值; 以及基于所述第一值来确定所述探针是否已经放置在不同组织类型之间的边界上。还描述了用于执行该方法的探针。

10. 发明专利

GB2246634B Real-time electrical impedance tomography system 未知
公开(公告)号：GB2246634B
公开(公告)日：1993-12-08
申请号：GB9111793
申请日：1991-06-10
申请人： BROWN BRIAN HILTON , BARBER DAVID CHARLES , BRITISH TECH GROUP
发明人： BROWN BRIAN HILTON , BARBER DAVID CHARLES
IPC分类号： A61B5/05 , A61B5/053

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