公开(公告)号：US4850372A

公开(公告)日：1989-07-25

申请号：US89193

申请日：1987-08-25

Applicant: Harvey W. Ko ,  Joseph P. Skura

Inventor： Harvey W. Ko ,  Joseph P. Skura

IPC: A61B5/05 ,  A61B5/053 ,  A61B5/103

CPC classification number: A61B5/053 ,  A61B5/4504

Abstract: A method for noninvasively sensing bone mass loss associated with osteoporosis is disclosed. The method uses an electromagnetic field to measure impedance (or conductivity) changes in the bone. A decrease in conductivity is indicative of osteoporosis.

Abstract translation: 公开了一种用于非侵入性地感测与骨质疏松症相关的骨质量损失的方法。 该方法使用电磁场来测量骨骼中的阻抗（或电导率）变化。 电导率的降低表明骨质疏松症。

公开(公告)号：US4913152A

公开(公告)日：1990-04-03

申请号：US390495

申请日：1989-08-01

Applicant: Harvey W. Ko ,  Joseph P. Skura ,  Harry A. C. Eaton

Inventor： Harvey W. Ko ,  Joseph P. Skura ,  Harry A. C. Eaton

IPC: A61B5/04

CPC classification number: A61B5/04005

Abstract: An apparatus and method for the passive, non-invasive magnetoencephalographic (MEG) localization and tracking of sources of magnetic signals in the brain is disclosed. The apparatus and method uses a multi-axis magnetic gradiometer to detect the magnetic field, field gradient, and polarization emanating from neuronal sources in the brain under either normal or pathological conditions.

Abstract translation: 公开了一种用于脑内磁信号源的被动，非侵入式脑磁图（MEG）定位和跟踪的装置和方法。 该装置和方法使用多轴磁梯度计检测在正常或病理状态下脑内神经元源发出的磁场，场梯度和极化。

公开(公告)号：US4860756A

公开(公告)日：1989-08-29

申请号：US89190

申请日：1987-08-25

Applicant: Harvey W. Ko ,  Lynn W. Hart ,  Joseph P. Skura

Inventor： Harvey W. Ko ,  Lynn W. Hart ,  Joseph P. Skura

IPC: A61B5/05 ,  A61B5/053 ,  G01V3/10

CPC classification number: A61B5/053 ,  G01V3/102

Abstract: An apparatus and method for non-invasive sensing of bone healing is disclosed. The apparatus and method uses an electromagnetic field to measure impedance changes at and about the bone fracture site during the healing process. The impedance change at the fracture site is a direct indication of the mechanical strength of the fracture site. A multi-coil sensor array is taught, which may be sutured to the patient's skin or mounted onto a plug that is inserted through a window in the cast.

Abstract translation: 公开了一种用于骨愈合的非侵入式感测的装置和方法。 该装置和方法使用电磁场来测量愈合过程中骨折部位处和周围的阻抗变化。 骨折部位的阻抗变化直接指示骨折部位的机械强度。 教导了多线圈传感器阵列，其可以缝合到患者的皮肤上或者被安装到插入通过铸件中的窗口的塞子上。