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GB2471799A - A sensor - Google Patents

A sensor Download PDF

Info

Publication number
GB2471799A
GB2471799A GB1017922A GB201017922A GB2471799A GB 2471799 A GB2471799 A GB 2471799A GB 1017922 A GB1017922 A GB 1017922A GB 201017922 A GB201017922 A GB 201017922A GB 2471799 A GB2471799 A GB 2471799A
Authority
GB
United Kingdom
Prior art keywords
movement
sensor
equilibrium
movement components
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1017922A
Other versions
GB201017922D0 (en
Inventor
John Tudor Taylor
Shiying Hao
Anthony William Miles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Bath
Original Assignee
University of Bath
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Bath filed Critical University of Bath
Publication of GB201017922D0 publication Critical patent/GB201017922D0/en
Publication of GB2471799A publication Critical patent/GB2471799A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/07—Endoradiosondes
    • A61B5/076—Permanent implantation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/07—Endoradiosondes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0031—Implanted circuitry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504—Bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4528—Joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/008—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00 with calibration coefficients stored in memory
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0204—Operational features of power management
    • A61B2560/0214—Operational features of power management of power generation or supply
    • A61B2560/0219—Operational features of power management of power generation or supply of externally powered implanted units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
    • A61B5/6878—Bone

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Physiology (AREA)
  • Power Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rheumatology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Prostheses (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

A movement sensor comprises first and second movement components movable relative to each other about an equilibrium position and a sensor component arranged to sense the relative positions of the first and second movement components. The sensor further comprises a processor arranged to identify an equilibrium state of said movement components and set the corresponding position of the movement component as the equilibrium position.
GB1017922A 2008-04-11 2009-04-09 A sensor Withdrawn GB2471799A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0806632.6A GB0806632D0 (en) 2008-04-11 2008-04-11 A sensor
PCT/GB2009/000931 WO2009125188A1 (en) 2008-04-11 2009-04-09 A sensor

Publications (2)

Publication Number Publication Date
GB201017922D0 GB201017922D0 (en) 2010-12-01
GB2471799A true GB2471799A (en) 2011-01-12

Family

ID=39433506

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0806632.6A Ceased GB0806632D0 (en) 2008-04-11 2008-04-11 A sensor
GB1017922A Withdrawn GB2471799A (en) 2008-04-11 2009-04-09 A sensor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0806632.6A Ceased GB0806632D0 (en) 2008-04-11 2008-04-11 A sensor

Country Status (2)

Country Link
GB (2) GB0806632D0 (en)
WO (1) WO2009125188A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293502A (en) * 1939-04-13 1942-08-18 Gen Electric Electric measuring apparatus
FR2243413A1 (en) * 1973-09-12 1975-04-04 Commissariat Energie Atomique Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge
US5801645A (en) * 1996-07-18 1998-09-01 Allen-Bradley Company, Inc. Automatic paired LVDT probe balancing
US20020024450A1 (en) * 1999-12-06 2002-02-28 Townsend Christopher P. Data collection and storage device
US20020147416A1 (en) * 2000-05-01 2002-10-10 Southwest Research Institute Passive and wireless displacement measuring device
US20040113790A1 (en) * 2002-09-23 2004-06-17 Hamel Michael John Remotely powered and remotely interrogated wireless digital sensor telemetry system
US20060247773A1 (en) * 2005-04-29 2006-11-02 Sdgi Holdings, Inc. Instrumented implant for diagnostics
US20070179739A1 (en) * 2006-02-01 2007-08-02 Sdgi Holdings, Inc. Implantable pedometer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293502A (en) * 1939-04-13 1942-08-18 Gen Electric Electric measuring apparatus
FR2243413A1 (en) * 1973-09-12 1975-04-04 Commissariat Energie Atomique Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge
US5801645A (en) * 1996-07-18 1998-09-01 Allen-Bradley Company, Inc. Automatic paired LVDT probe balancing
US20020024450A1 (en) * 1999-12-06 2002-02-28 Townsend Christopher P. Data collection and storage device
US20020147416A1 (en) * 2000-05-01 2002-10-10 Southwest Research Institute Passive and wireless displacement measuring device
US20040113790A1 (en) * 2002-09-23 2004-06-17 Hamel Michael John Remotely powered and remotely interrogated wireless digital sensor telemetry system
US20060247773A1 (en) * 2005-04-29 2006-11-02 Sdgi Holdings, Inc. Instrumented implant for diagnostics
US20070179739A1 (en) * 2006-02-01 2007-08-02 Sdgi Holdings, Inc. Implantable pedometer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Gibert et al: A computer based biomechanical analysis of the three dimensional motion of cementless hip protheses, Journal of Biomechanics, v.25 no.4 april 1992, p329-335, ISSN 0021-9290. *
Shiying Hao et al: An implatable system for the in vivo measurement of hip and knee migration and micromotion, Signal & Electronic Systems, ISCES 08 conference, Piscataway NJ, USE 14 September 2008,ISBN 978-83-88309-47-2. *

Also Published As

Publication number Publication date
GB0806632D0 (en) 2008-05-14
GB201017922D0 (en) 2010-12-01
WO2009125188A1 (en) 2009-10-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)