公开(公告)号：US20230157625A1

公开(公告)日：2023-05-25

申请号：US17532715

申请日：2021-11-22

Applicant: DC Medical Inc. ,  THE UNIVERSITY OF SHEFFIELD ,  Sheffield Teaching Hospitals NHS Foundation Trust

Inventor： Gordon SCARTH ,  Jack MONDRY ,  Byunggaun PARK ,  Hyunseon GONG ,  Timothy James HEALEY ,  Dilichukwu ANUMBA

IPC: A61B5/00 ,  A61B5/053 ,  A61B5/25 ,  A61B5/145 ,  A61B5/01

CPC classification number: A61B5/4343 ,  A61B5/01 ,  A61B5/25 ,  A61B5/053 ,  A61B5/742 ,  A61B5/6823 ,  A61B5/7221 ,  A61B5/7246 ,  A61B5/7275 ,  A61B5/7475 ,  A61B5/14539 ,  A61B2560/0223

Abstract: A system for providing information for diagnosing preterm birth risk includes: two or more transmit electrodes, contacting cervical tissues, for applying a plurality of first signals at different frequencies to the cervical tissues, two or more detect electrodes, contacting the cervical tissues, for detecting a plurality of second signals generated in response to the first signals, the second signals corresponding to the first signals, and a source configured to generate a plurality of signals. The system obtains a plurality of impedances of the cervical tissues based on the first and the second signals and applies data quality requirements for diagnosing the preterm birth risk. The data quality requirements include checking at least one of signal generation, signal reception, impedance calculation, quality of the first signals, quality of the second signals, and the impedances. The system includes a diagnosis engine configured to receive data including impedances that satisfy the data quality requirements, classify the data into different groups, each representing different status, based on correlation between the data, patient’s information and the preterm birth risk, and output information for diagnosing the preterm birth risk.

公开(公告)号：US20230355178A1

公开(公告)日：2023-11-09

申请号：US18138387

申请日：2023-04-24

Applicant: THE UNIVERSITY OF SHEFFIELD

Inventor： Dilichukwu ANUMBA ,  Timothy James HEALEY

IPC: A61B5/00 ,  A61B5/0538 ,  G01R35/00

CPC classification number: A61B5/6843 ,  A61B5/0538 ,  A61B5/4331 ,  G01R35/005 ,  A61B5/435 ,  A61B2562/0219 ,  A61B2562/0252 ,  A61B2562/0261

Abstract: An apparatus for determining a force Ftip applied to a tip of an electrical impedance spectroscopy probe includes a load cell, accelerometer, and a processing means. The probe tip has a substantially planar distal end for contacting human or animal tissue. The load cell measures the force Floadcell applied axially along a longitudinal axis when the probe tip is in contact with human or animal tissue. The accelerometer measures a gravity vector Aaxial. The apparatus includes a means for compensating for the mass of the probe tip using the measured force and the gravity vector to produce a calibrated measurement force F applied to the probe tip.

公开(公告)号：US20190000388A1

公开(公告)日：2019-01-03

申请号：US16065209

申请日：2016-12-21

Applicant: THE UNIVERSITY OF SHEFFIELD

Inventor： Dilichukwu ANUMBA ,  Timothy James HEALEY

IPC: A61B5/00 ,  G01R35/00 ,  A61B5/053

Abstract: An apparatus capable of determining the force applied to the tip of an electrical impedance spectroscopy probe comprises: ⋅an elongate probe comprising a probe tip attached to a handle, the probe tip having a substantially planar distal end for contacting human or animal tissue; ⋅a load cell located in said handle and capable of measuring a force Floadcell applied axially along a longitudinal axis when said probe tip is in contact with said human or animal tissue; ⋅an accelerometer located in the handle for measuring a gravity vector Aaxial; ⋅processing means for compensating for the mass of the probe tip using said measured force and gravity vector to produce a calibrated measurement of force F applied to said probe tip.