CA2451652A1 - Probe tip thermal isolation and fast prediction algorithm - Google Patents

Probe tip thermal isolation and fast prediction algorithm Download PDF

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Publication number
CA2451652A1
CA2451652A1 CA002451652A CA2451652A CA2451652A1 CA 2451652 A1 CA2451652 A1 CA 2451652A1 CA 002451652 A CA002451652 A CA 002451652A CA 2451652 A CA2451652 A CA 2451652A CA 2451652 A1 CA2451652 A1 CA 2451652A1
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CA
Canada
Prior art keywords
temperature
tip
probe
rapid
accurate
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.)
Granted
Application number
CA002451652A
Other languages
French (fr)
Other versions
CA2451652C (en
Inventor
Loren Lantz
Robert B. Gaines
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.)
Cardinal Health 529 LLC
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Individual
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 Individual filed Critical Individual
Publication of CA2451652A1 publication Critical patent/CA2451652A1/en
Application granted granted Critical
Publication of CA2451652C publication Critical patent/CA2451652C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/42—Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

A prediction type electronic thermometer having an actively controlled heate r element thermally isolating the probe tip from the probe shaft. Rapid and accurate temperature measurements are made using predictive algorithms. Control circuitry reads input from the temperature sensing element to comput e best heater control signals so that the temperature of the probe shaft rapid ly follows changes in the temperature of the probe tip. Thermal isolation betwe en probe shaft and tip impedes heat flow from the heater element to the tip providing more accurate measurements. Rapid and accurate management of shaft temperature allows heat from the patient being measured to be most efficient ly transmitted to the temperature sensor element resulting in very fast temperature measurements.
CA 2451652 2001-06-27 2002-03-28 Probe tip thermal isolation and fast prediction algorithm Expired - Lifetime CA2451652C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/893,154 2001-06-27
US09/893,154 US6839651B2 (en) 2001-06-27 2001-06-27 Probe tip thermal isolation and fast prediction algorithm
PCT/US2002/009654 WO2003002965A1 (en) 2001-06-27 2002-03-28 Probe tip thermal isolation and fast prediction algorithm

Publications (2)

Publication Number Publication Date
CA2451652A1 true CA2451652A1 (en) 2003-01-09
CA2451652C CA2451652C (en) 2008-08-05

Family

ID=25401111

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2451652 Expired - Lifetime CA2451652C (en) 2001-06-27 2002-03-28 Probe tip thermal isolation and fast prediction algorithm

Country Status (9)

Country Link
US (1) US6839651B2 (en)
EP (1) EP1409977A1 (en)
JP (1) JP3940121B2 (en)
KR (1) KR100904107B1 (en)
AU (1) AU2002254423B2 (en)
BR (1) BR0210604A (en)
CA (1) CA2451652C (en)
MX (1) MXPA03011962A (en)
WO (1) WO2003002965A1 (en)

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Also Published As

Publication number Publication date
WO2003002965A1 (en) 2003-01-09
AU2002254423B2 (en) 2006-09-21
MXPA03011962A (en) 2004-06-03
US20030023398A1 (en) 2003-01-30
BR0210604A (en) 2004-08-10
JP3940121B2 (en) 2007-07-04
CA2451652C (en) 2008-08-05
US6839651B2 (en) 2005-01-04
EP1409977A1 (en) 2004-04-21
JP2004531741A (en) 2004-10-14
KR100904107B1 (en) 2009-06-24
KR20040039204A (en) 2004-05-10

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Effective date: 20220328