CA2528612A1 - Patient temperature repeating system and method - Google Patents
Patient temperature repeating system and method Download PDFInfo
- Publication number
- CA2528612A1 CA2528612A1 CA002528612A CA2528612A CA2528612A1 CA 2528612 A1 CA2528612 A1 CA 2528612A1 CA 002528612 A CA002528612 A CA 002528612A CA 2528612 A CA2528612 A CA 2528612A CA 2528612 A1 CA2528612 A1 CA 2528612A1
- Authority
- CA
- Canada
- Prior art keywords
- variable resistance
- patient temperature
- temperature sensor
- level
- resistance level
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/20—Clinical contact thermometers for use with humans or animals
Abstract
A patient temperature repeating system and a method of repeating patient temperature information from a resistive-type patient temperature sensor allow one or more medical instruments to utilize a single patient temperature sensor. In one embodiment, the patient temperature repeating system (10) includes input and output connectors (12, 14), a microprocessor (20), optical isolators (22), a coarse digital potentiometer (24) in parallel with a fine digital potentiometer (26), a current sense resistor (28), amplifiers (30A, 30B), analog-to-digital converters (32A, 32B), a filter (34), fuses (36), a non-volatile memory device (38), and a relay (40). In operation, the microprocessor (20) reads the resistance level of a resistive-type patient temperature sensor (16) connected to the input connector (12) and provides the appropriate control signals through the optical isolators (22) to the coarse and fine digital potentiometers (24, 26) in order to set the resistance seen by a medical device (18) connected to the output connector (14) to match that of the patient temperature sensor (16).
Claims (49)
1. A patient temperature repeating system for repeating a resistance level from a patient temperature sensor that varies its resistance level in accordance with patient temperature whereby the resistance level of the patient temperature sensor is accessible by at least one medical instrument without connecting the patient temperature sensor directly with the medical instrument, said system comprising:
an input connector configured for connection of the patient temperature sensor thereto;
an output connector configured for connection of at least one medical instrument thereto;
a variable resistance device controllable to provide a variable resistance level to said output connector; and a controller operable to obtain the resistance level provided by a patient temperature sensor connected to said input connector, said controller being further operable to control said variable resistance device to establish the resistance level provided by said variable resistance device to said output connector in accordance with the resistance level obtained from the patient temperature sensor.
an input connector configured for connection of the patient temperature sensor thereto;
an output connector configured for connection of at least one medical instrument thereto;
a variable resistance device controllable to provide a variable resistance level to said output connector; and a controller operable to obtain the resistance level provided by a patient temperature sensor connected to said input connector, said controller being further operable to control said variable resistance device to establish the resistance level provided by said variable resistance device to said output connector in accordance with the resistance level obtained from the patient temperature sensor.
2. The system of claim 1 wherein the patient temperature sensor comprises a thermistor.
3. The system of claim 1 wherein the patient temperature sensor comprises a resistive temperature device.
4. The system of claim 1 wherein said variable resistance device comprises at least one potentiometer.
5. The system of claim 4 wherein said variable resistance device comprises at least one coarse digital potentiometer in parallel with at least one fine digital potentiometer.
6. The system of claim 5 wherein said coarse potentiometer is controllable to provide a resistance level of between 100 and 10K ohms in 39 ohm increments and said fine potentiometer is controllable to provide a resistance level of between 100 and 10K
ohms in 9.8 ohm increments.
ohms in 9.8 ohm increments.
7. The system of claim 1 wherein said variable resistance device comprises at least one field effect transistor, said controller being operable to control a gate-source voltage of said field effect transistor to vary a drain-source resistance level of said field effect transistor.
8. The system of claim 1 wherein said variable resistance device comprises a network of fixed resistors and analog switches, wherein closing different combinations of said switches provides different resistance levels.
9. The system of claim 1 wherein said variable resistance device comprises a network of fixed resistors and relays, wherein operating different combinations of said relays provides different resistance levels.
10. The system of claim 1 wherein said variable resistance device comprises an analog potentiometer coupled with a servo motor, said controller being operable to operate said servo motor to control a resistance level of said analog potentiometer.
11. The system of claim 1 further comprising:
at least one device operable to disconnect said variable resistance device from said output connector.
at least one device operable to disconnect said variable resistance device from said output connector.
12. The system of claim 11 wherein said at least one device operable to disconnect said variable resistance device from said output connector comprises one of a relay and an analog switch.
13. The system of claim 1 wherein said controller comprises a microprocessor.
14. The system of claim 13 further comprising:
a memory configurable to store information retrievable by said microprocessor for use in controlling said variable resistance device.
a memory configurable to store information retrievable by said microprocessor for use in controlling said variable resistance device.
15. The system of claim 14 further comprising:
at least one feedback loop providing information to said microprocessor relating to the resistance level provided by said variable resistance device.
at least one feedback loop providing information to said microprocessor relating to the resistance level provided by said variable resistance device.
16. The system of claim 15 wherein said feedback loop comprises a first amplifier in series with a first analog-to-digital converter and a second amplifier in series with a second analog-to-digital converter, said first amplifier amplifying a voltage level across said variable resistance device and said second amplifier amplifying a current through said variable resistance device.
17. The system of claim 15 wherein said feedback loop comprises parallel first and second amplifiers in series with an analog multiplexer and an analog-to-digital converter, said first amplifier amplifying a voltage level across said variable resistance device and said second amplifier amplifying a current through said variable resistance device.
18. The system of claim 15 wherein said feedback loop comprises parallel first and second amplifiers in series with a hybrid analog-to-digital converter including multiplexing functionality, said first amplifier amplifying a voltage level across said variable resistance device and said second amplifier amplifying a current through said variable resistance device.
19. The system of claim 15 wherein said input connector and said microprocessor are electrically isolated from said variable resistance device, said output connector, and said feedback loop, and wherein said microprocessor is electrically isolated from said input connector.
20. The system of claim 19 wherein the electrical isolation is provided by at least one optical isolator.
21. The system of claim 19 wherein the electrical isolation is provided by at least one transformer.
22. The system of claim 13 wherein said microprocessor is operable to periodically obtain the resistance level provided by the temperature sensor to said input connector and to periodically establish the resistance level provided by said variable resistance device to said output connector in accordance with the resistance level periodically obtained from the patient temperature sensor.
23. The system of claim 22 wherein said microprocessor periodically obtains the resistance level of the patient temperature sensor and periodically establishes the resistance level of said variable resistance device at least once per every second.
24. The system of claim 1 wherein said controller comprises one of an FPGA, an EPROM, and a flash memory.
25. The system of claim 1 wherein said variable resistance device and said controller are operable to provide a resistance level to said output connector that is within an acceptable tolerance level of the resistance level of the patient temperature sensor.
26. The system of claim 25 wherein the acceptable tolerance level varies from +/- 4.5 ohms at a patient temperature of 42°C to +/- 21 ohms at a patient temperature of 10°C.
27. The system of claim 1 wherein said output connector is configured for simultaneous connection of multiple medical instruments thereto.
28. A method of repeating a resistance level from a patient temperature sensor that varies its resistance level in accordance with patient temperature whereby the resistance level of the patient temperature sensor is accessible by at least one medical instrument without connecting the patient temperature sensor directly with the medical instrument, said method comprising the steps of:
monitoring the resistance level of the patient temperature sensor;
generating a control signal based on the monitored resistance level;
transmitting the control signal to a variable resistance device; and establishing a setting of the variable resistance device in response to the control signal to provide an output resistance level to the medical instrument which corresponds with the monitored resistance level.
monitoring the resistance level of the patient temperature sensor;
generating a control signal based on the monitored resistance level;
transmitting the control signal to a variable resistance device; and establishing a setting of the variable resistance device in response to the control signal to provide an output resistance level to the medical instrument which corresponds with the monitored resistance level.
29. The method of claim 28 wherein said steps of monitoring, generating, transmitting and establishing are performed on a periodic basis.
30. The method of claim 28 wherein said steps of monitoring, generating, transmitting and establishing are performed on a continuous basis.
31. The method of claim 28 wherein the variable resistance device comprises a coarse potentiometer in parallel with a fine potentiometer, and wherein, in said step of generating, the control signal is configured to provide for at least one of establishing the setting of the coarse potentiometer and establishing the setting of the fine potentiometer.
32. The method of claim 31 wherein, in said step of generating, the control signal includes a first portion for establishing the setting of the coarse potentiometer and a second portion for establishing the setting of the fine potentiometer.
33. The method of claim 32 wherein said step of generating the control signal includes the step of:
retrieving stored settings for the coarse and fine potentiometers associated with the monitored resistance level.
retrieving stored settings for the coarse and fine potentiometers associated with the monitored resistance level.
34. The method of claim 33 further comprising:
performing a calibration process to derive a plurality of settings for the coarse and fine potentiometers associated with a plurality of different monitored resistance levels;
and storing the settings for later retrieval.
performing a calibration process to derive a plurality of settings for the coarse and fine potentiometers associated with a plurality of different monitored resistance levels;
and storing the settings for later retrieval.
35. The method of claim 34 wherein the calibration process is performed for patient temperatures within a predetermined temperature range.
36. The method of claim 34 wherein said step of performing the calibration process includes the steps of:
generating at least one test signal based on a predetermined resistance level;
transmitting the test signal to the variable resistance device to establish an initial setting for the variable resistance device;
monitoring the resistance level of the variable resistive device; and adjusting the setting of the variable resistance device to identify a final setting for the variable resistance device wherein the variable resistance device provides a resistance level that is within an acceptable tolerance range of the predetermined resistance level.
generating at least one test signal based on a predetermined resistance level;
transmitting the test signal to the variable resistance device to establish an initial setting for the variable resistance device;
monitoring the resistance level of the variable resistive device; and adjusting the setting of the variable resistance device to identify a final setting for the variable resistance device wherein the variable resistance device provides a resistance level that is within an acceptable tolerance range of the predetermined resistance level.
37. The method of claim 36 wherein said step of monitoring the resistance level of the variable resistive device comprises looping the output resistance level back into an input, and obtaining the resistance level of the variable resistive device from the input.
38. The method of claim 36 wherein, in said step of adjusting the setting of the variable resistance device to identify a final setting for the variable resistance device, the acceptable tolerance range varies from +/- 4.5 ohms at a patient temperature of 42°C to +/- 21 ohms at a patient temperature of 10°C.
39. The method of claim 28 further comprising the step of:
generating a feedback signal from the variable resistance device which is employable for use in said step of generating a control signal.
generating a feedback signal from the variable resistance device which is employable for use in said step of generating a control signal.
40. The method of claim 39 further comprising:
generating an alert signal based on said feedback signal.
generating an alert signal based on said feedback signal.
41. A system for repeating a resistance level from a patient temperature sensor that varies its resistance level in accordance with patient temperature whereby the resistance level of the patient temperature sensor is accessible by at least one medical instrument without connecting the patient temperature sensor directly with the medical instrument, said system comprising:
input means for connecting the patient temperature sensor thereto;
output means for connecting at least one medical instrument thereto;
variable resistance means for providing a variable resistance level to said output means; and control means for obtaining the resistance level provided by a patient temperature sensor connected to said input means and establishing the resistance level provided by said variable resistance means to said output means in accordance with the resistance level obtained from the patient temperature sensor.
input means for connecting the patient temperature sensor thereto;
output means for connecting at least one medical instrument thereto;
variable resistance means for providing a variable resistance level to said output means; and control means for obtaining the resistance level provided by a patient temperature sensor connected to said input means and establishing the resistance level provided by said variable resistance means to said output means in accordance with the resistance level obtained from the patient temperature sensor.
42. The system of claim 41 wherein said input means comprise a plug connector.
43. The system of claim 41 wherein said output means comprise a plug connector.
44. The system of claim 41 wherein said variable resistance means comprise at least one potentiometer.
45. The system of claim 44 wherein said variable resistance means comprises a coarse potentiometer in parallel with a fine potentiometer.
46. The system of claim 41 wherein said variable resistance means comprise at least one field effect transistor, and wherein said control means are operable to control a gate-source voltage of said field effect transistor to vary a drain-source resistance level of said field effect transistor.
47. The system of claim 41 wherein said variable resistance means comprise a network of fixed resistors and analog switches, wherein closing different combinations of said switches provides different resistance levels.
48. The system of claim 41 wherein said variable resistance means comprise a network of fixed resistors and relays, wherein operating different combinations of said relays provides different resistance levels.
49. The system of claim 41 wherein said control means comprise at least one of a microprocessor, an FPGA, an EPROM, and a flash memory.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/460,069 | 2003-06-12 | ||
| US10/460,069 US6921198B2 (en) | 2003-06-12 | 2003-06-12 | Patient temperature repeating system and method |
| PCT/US2004/018251 WO2004112640A2 (en) | 2003-06-12 | 2004-06-09 | Patient temperature repeating system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2528612A1 true CA2528612A1 (en) | 2004-12-29 |
| CA2528612C CA2528612C (en) | 2011-01-04 |
Family
ID=33510930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2528612A Active CA2528612C (en) | 2003-06-12 | 2004-06-09 | Patient temperature repeating system and method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6921198B2 (en) |
| EP (1) | EP1639334B1 (en) |
| JP (1) | JP4750706B2 (en) |
| CA (1) | CA2528612C (en) |
| DE (1) | DE602004015456D1 (en) |
| WO (1) | WO2004112640A2 (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE479343T1 (en) | 2002-10-01 | 2010-09-15 | Nellcor Puritan Bennett Inc | USE OF A HEADBAND FOR VOLTAGE DISPLAY AND SYSTEM OF OXYMETER AND HEADBAND |
| WO2004074794A1 (en) * | 2003-02-20 | 2004-09-02 | Ysi Incorporated | Digitally modified resistive output for a temperature sensor |
| US7047056B2 (en) | 2003-06-25 | 2006-05-16 | Nellcor Puritan Bennett Incorporated | Hat-based oximeter sensor |
| US8412297B2 (en) | 2003-10-01 | 2013-04-02 | Covidien Lp | Forehead sensor placement |
| US7043386B2 (en) * | 2004-03-26 | 2006-05-09 | Honeywell International Inc | Potentiometer providing a high resolution |
| JP2008513766A (en) * | 2004-09-15 | 2008-05-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Digital temperature sensor and its calibration |
| US20070093697A1 (en) * | 2005-10-21 | 2007-04-26 | Theranova, Llc | Method and apparatus for detection of right to left shunting in the cardiopulmonary vasculature |
| US20180311071A1 (en) | 2005-10-21 | 2018-11-01 | Daniel R. BURNETT | Method and apparatus for peritoneal oxygenation |
| US8647374B2 (en) * | 2005-10-21 | 2014-02-11 | Cincinnati Sub-Zero Products, Inc. | Patient temperature control system with variable gradient warming/cooling |
| US7496481B2 (en) * | 2006-05-19 | 2009-02-24 | Watlow Electric Manufacturing Company | Sensor adaptors and methods |
| US7496469B2 (en) * | 2006-05-19 | 2009-02-24 | Watlow Electric Manufacturing Company | Temperature sensor adaptors and methods |
| JP2010523230A (en) | 2007-04-05 | 2010-07-15 | ベロメディックス，インク | Automatic treatment system and method |
| AU2008275158A1 (en) | 2007-07-09 | 2009-01-15 | Velomedix, Inc | Hypothermia devices and methods |
| WO2009049297A1 (en) * | 2007-10-12 | 2009-04-16 | Medivance Incorporated | Improved system and method for patient temperature control |
| ES2770309T3 (en) | 2007-11-16 | 2020-07-01 | Medivance Inc | Control system of the response to the temperature of a patient |
| US8364220B2 (en) | 2008-09-25 | 2013-01-29 | Covidien Lp | Medical sensor and technique for using the same |
| US8257274B2 (en) | 2008-09-25 | 2012-09-04 | Nellcor Puritan Bennett Llc | Medical sensor and technique for using the same |
| US8515515B2 (en) | 2009-03-25 | 2013-08-20 | Covidien Lp | Medical sensor with compressible light barrier and technique for using the same |
| US8781548B2 (en) | 2009-03-31 | 2014-07-15 | Covidien Lp | Medical sensor with flexible components and technique for using the same |
| JP2013505068A (en) | 2009-09-16 | 2013-02-14 | ボード・オブ・リージエンツ，ザ・ユニバーシテイ・オブ・テキサス・システム | Body temperature changes in the mammalian body |
| WO2012006625A2 (en) | 2010-07-09 | 2012-01-12 | Velomedix, Inc. | Method and apparatus for pressure measurement |
| US8714816B2 (en) * | 2010-09-12 | 2014-05-06 | Medisim Ltd. | Temperature sensor with calibrated analog resistive output |
| US9339412B2 (en) | 2010-11-29 | 2016-05-17 | Board Of Regents, The University Of Texas System | Maintenance of core mammalian body temperature |
| US8734006B2 (en) | 2011-03-02 | 2014-05-27 | International Business Machines Corporation | Calibration of an on-die thermal sensor |
| US9354122B2 (en) * | 2011-05-10 | 2016-05-31 | 3M Innovative Properties Company | Zero-heat-flux, deep tissue temperature measurement system |
| US10390992B2 (en) | 2013-05-20 | 2019-08-27 | Stryker Corporation | Thermal control system |
| JP6635515B2 (en) | 2013-06-11 | 2020-01-29 | オーソソフト アンリミティド ライアビリティ コーポレイション | Acetabular cup prosthesis positioning instrument and method |
| US9599521B2 (en) * | 2014-01-27 | 2017-03-21 | Medisim, Ltd. | Interface between vital-signs sensors and patient monitor |
| EP2932945A1 (en) * | 2014-04-17 | 2015-10-21 | seiratherm GmbH | Apparatus, system and method for controlling a temperature of a patient |
| ES2858518T3 (en) | 2014-08-14 | 2021-09-30 | Medivance Inc | System and method for extracorporeal temperature control |
| EP3250163B1 (en) | 2015-01-27 | 2023-07-12 | Medivance Incorporated | Medical pad for thermotherapy |
| US11058572B2 (en) | 2016-10-11 | 2021-07-13 | Stryker Corporation | Thermal control system |
Family Cites Families (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3822598A (en) | 1971-03-23 | 1974-07-09 | Barge Inc | Portable electronic thermometer and method of temperature measurement |
| US3872726A (en) | 1972-01-19 | 1975-03-25 | Diatek Inc | Electronic digital read-out circuit for a clinical thermometer |
| US3872728A (en) * | 1972-10-10 | 1975-03-25 | Michael F Joyce | Electronic temperature measuring instrument |
| CH559906A5 (en) | 1972-11-10 | 1975-03-14 | Test Sa D Etudes Tech | |
| US3978325A (en) | 1973-09-05 | 1976-08-31 | Control Electronics Co., Inc. | Electronic thermometer |
| US4022063A (en) * | 1974-10-15 | 1977-05-10 | Rwb Labs | Electromechanical digital thermometer |
| US4030363A (en) | 1975-10-28 | 1977-06-21 | Electromedics, Inc. | Electronic thermometer |
| US4117723A (en) | 1976-10-26 | 1978-10-03 | Rudolph Maravich | Electronic thermometer |
| US4317367A (en) * | 1977-03-18 | 1982-03-02 | Milton Schonberger | Fever thermometer, or the like sensor |
| US4122719A (en) * | 1977-07-08 | 1978-10-31 | Environmental Systems Corporation | System for accurate measurement of temperature |
| US4207536A (en) * | 1978-03-02 | 1980-06-10 | Michigan Technological University | Dual-adjustment balance circuit for operational amplifiers |
| US4232682A (en) | 1978-08-21 | 1980-11-11 | United States Surgical Corporation | Physiological parameter measuring system |
| US4198676A (en) | 1978-12-20 | 1980-04-15 | Livezey Robert L Jr | General purpose electronic thermometer having selective data recovery, data conversion, and data derivation capabilities |
| JPS5777926A (en) * | 1980-11-04 | 1982-05-15 | Nissan Motor Co Ltd | Temperature detector |
| US4403296A (en) | 1980-12-18 | 1983-09-06 | Electromedics, Inc. | Measuring and determination device for calculating an output determination based on a mathematical relationship between multiple different input responsive transducers |
| US4380764A (en) * | 1981-03-12 | 1983-04-19 | Data Translation, Inc. | Data acquisition apparatus |
| US4481596A (en) * | 1981-11-02 | 1984-11-06 | Kaye Instruments Inc. | Method of and apparatus for automatically compensating for variations in output response characteristics of sensors and the like |
| NL193256C (en) | 1981-11-10 | 1999-04-02 | Cordis Europ | Sensor system. |
| US4475823A (en) * | 1982-04-09 | 1984-10-09 | Piezo Electric Products, Inc. | Self-calibrating thermometer |
| JPS58210530A (en) * | 1982-05-31 | 1983-12-07 | Hideo Sugimori | Resistance thermometer |
| US4493564A (en) | 1982-09-27 | 1985-01-15 | Saul Epstein | Clinical instrument for measuring pulse rate and body temperature |
| DE3306402C2 (en) | 1983-02-24 | 1985-03-07 | Werner Prof. Dr.-Ing. 6301 Wettenberg Irnich | Monitoring device for a high-frequency surgical device |
| US4576487A (en) * | 1984-01-23 | 1986-03-18 | Independent Energy, Inc. | Thermally responsive electrical control device and monitoring circuit therefor |
| US4642785A (en) * | 1985-04-10 | 1987-02-10 | Ncr Corporation | Cordless electronic thermometer |
| DE3516354A1 (en) | 1985-05-07 | 1986-11-13 | Werner Prof. Dr.-Ing. 6301 Wettenberg Irnich | MONITORING DEVICE FOR A HIGH-FREQUENCY SURGERY DEVICE |
| US4713783A (en) * | 1985-06-24 | 1987-12-15 | Fletcher Taylor C | Digital temperature indicating system |
| US4669049A (en) | 1985-10-08 | 1987-05-26 | Mon-A-Therm, Inc. | Temperature measuring instrument and adapter for same |
| GB2183342A (en) * | 1985-10-24 | 1987-06-03 | Johnson Matthey Plc | Displaying corrected transducer readings |
| GB8604125D0 (en) * | 1986-02-19 | 1986-03-26 | Rowlands S L | Resistance element simulator |
| US4832599A (en) * | 1987-03-12 | 1989-05-23 | Abiomed, Inc. | Periodontal probe |
| USRE34507E (en) | 1988-04-12 | 1994-01-11 | Citizen Watch Co., Ltd. | Radiation clinical thermometer |
| US5232284A (en) | 1988-04-12 | 1993-08-03 | Citizen Watch Co., Ltd. | Radiation clinical thermometer |
| JP2826337B2 (en) | 1988-04-12 | 1998-11-18 | シチズン時計株式会社 | Radiation thermometer |
| US5178468A (en) * | 1988-08-25 | 1993-01-12 | Terumo Kabushiki Kaisha | Temperature measuring probe and electronic clinical thermometer equipped with same |
| US5295746A (en) | 1992-02-05 | 1994-03-22 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | High resolution digital thermometer |
| DE4229817C2 (en) | 1992-09-07 | 1996-09-12 | Siemens Ag | Method for the non-destructive and / or non-invasive measurement of a temperature change in the interior of a living object in particular |
| US5425375A (en) * | 1993-09-09 | 1995-06-20 | Cardiac Pathways Corporation | Reusable medical device with usage memory, system using same |
| US5741074A (en) * | 1995-06-06 | 1998-04-21 | Thermo Electrioc Corporation | Linear integrated sensing transmitter sensor |
| US5730720A (en) | 1995-08-18 | 1998-03-24 | Ip Scientific, Inc. | Perfusion hyperthermia treatment system and method |
| US5857777A (en) * | 1996-09-25 | 1999-01-12 | Claud S. Gordon Company | Smart temperature sensing device |
| CA2267281A1 (en) | 1996-10-03 | 1998-04-09 | Ysi Incorporated | Conductivity measuring apparatus and method |
| JPH1156791A (en) * | 1997-08-22 | 1999-03-02 | Nec Corp | Medical telemeter device |
| JP3668923B2 (en) * | 1998-03-02 | 2005-07-06 | 日本光電工業株式会社 | Medical telemeter system |
| AU6031299A (en) | 1998-09-11 | 2000-04-03 | Medivance, Inc. | Method and apparatus for providing localized heating of the preoptic anterior hypothalamus |
| US6179786B1 (en) | 1998-10-02 | 2001-01-30 | Profemme Ltd. | System for thermometry-based breast cancer risk-assessment |
| US6354736B1 (en) * | 1999-03-24 | 2002-03-12 | Honeywell International Inc. | Wide temperature range RTD |
| US6837845B2 (en) | 2001-01-09 | 2005-01-04 | Datex-Ohmeda, Inc. | Calibration system without using potentiometers |
| JP4771193B2 (en) * | 2001-08-31 | 2011-09-14 | アドバンスドメディカル株式会社 | Ear thermometer temperature correction device |
| WO2004074794A1 (en) * | 2003-02-20 | 2004-09-02 | Ysi Incorporated | Digitally modified resistive output for a temperature sensor |
-
2003
- 2003-06-12 US US10/460,069 patent/US6921198B2/en not_active Expired - Lifetime
-
2004
- 2004-06-09 EP EP04754765A patent/EP1639334B1/en active Active
- 2004-06-09 JP JP2006533628A patent/JP4750706B2/en active Active
- 2004-06-09 CA CA2528612A patent/CA2528612C/en active Active
- 2004-06-09 DE DE602004015456T patent/DE602004015456D1/en active Active
- 2004-06-09 WO PCT/US2004/018251 patent/WO2004112640A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP4750706B2 (en) | 2011-08-17 |
| WO2004112640A3 (en) | 2005-03-31 |
| DE602004015456D1 (en) | 2008-09-11 |
| CA2528612C (en) | 2011-01-04 |
| JP2007504929A (en) | 2007-03-08 |
| US6921198B2 (en) | 2005-07-26 |
| US20040252750A1 (en) | 2004-12-16 |
| EP1639334B1 (en) | 2008-07-30 |
| EP1639334A2 (en) | 2006-03-29 |
| EP1639334A4 (en) | 2006-07-19 |
| WO2004112640A2 (en) | 2004-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2528612A1 (en) | Patient temperature repeating system and method | |
| JP2007504929A5 (en) | ||
| US4546238A (en) | Circuit arrangement for temperature control of an electric heating element | |
| US7671304B2 (en) | Multiple zone temperature controller for injection molding system | |
| US4532601A (en) | Automatic temperature calibration method and apparatus | |
| JP2005122744A5 (en) | ||
| JP2010512512A5 (en) | ||
| EP2741040A2 (en) | High temperature furnace having reconfigurable heater circuits | |
| EP0903585A3 (en) | Input ranging circuit for an electronic instrument | |
| US5734596A (en) | Self-calibrating and remote programmable signal conditioning amplifier system and method | |
| US4363934A (en) | Volume control device | |
| US7889048B2 (en) | Resistor network and variable resistor simulator | |
| CN102844207A (en) | Circuit arrangement for electric seat heating means | |
| JPH0221733A (en) | Apparatus for balancing loss in coaxial transmission line of network and method of balancing loss in coaxial transmission line of network automatically | |
| CN210471025U (en) | Electric heating device of tobacco flue-curing device | |
| RU2571728C1 (en) | Control over spacecraft hardware heaters | |
| JP5878759B2 (en) | Catheter interface | |
| CN114295242A (en) | Motor controller and motor temperature sampling circuit thereof | |
| US10228399B2 (en) | Configurable smart sensor systems | |
| EP2309643A1 (en) | R/2R programmable gain amplifier | |
| WO2004025992A9 (en) | Warming blanket having remote safety circuit | |
| KR100465401B1 (en) | Method and system for setting electric characteristics of microelectronic circuits | |
| GB2590266A (en) | Variable output resistance in a playback path with open-loop pulse-width modulation driver | |
| US6697190B2 (en) | Flexible and fast electronic control of optical devices | |
| KR102042753B1 (en) | Apparatus and system for evaluating performance of thermoelectric modules |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |