GB1446412A - Heating apparatus - Google Patents

Heating apparatus

Info

Publication number
GB1446412A
GB1446412A GB4598872A GB4598872A GB1446412A GB 1446412 A GB1446412 A GB 1446412A GB 4598872 A GB4598872 A GB 4598872A GB 4598872 A GB4598872 A GB 4598872A GB 1446412 A GB1446412 A GB 1446412A
Authority
GB
United Kingdom
Prior art keywords
transistor
temperature
block
sensed
inverter
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.)
Expired
Application number
GB4598872A
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.)
LM ELECTRONICS Ltd
Original Assignee
LM ELECTRONICS Ltd
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 LM ELECTRONICS Ltd filed Critical LM ELECTRONICS Ltd
Priority to GB4598872A priority Critical patent/GB1446412A/en
Priority to ZA737720A priority patent/ZA737720B/en
Priority to CA182,456A priority patent/CA1008498A/en
Priority to AU60959/73A priority patent/AU485684B2/en
Priority to FR7335531A priority patent/FR2202321B1/fr
Priority to IT69924/73A priority patent/IT999621B/en
Priority to IL43373A priority patent/IL43373A/en
Priority to DE19732350264 priority patent/DE2350264A1/en
Priority to ES419385A priority patent/ES419385A1/en
Priority to JP48112226A priority patent/JPS49133943A/ja
Priority to DD173903A priority patent/DD107594A5/xx
Priority to BE136417A priority patent/BE805749A/en
Priority to NL7313718A priority patent/NL7313718A/xx
Priority to CH1426273A priority patent/CH591865A5/xx
Priority to IN2228/CAL/73A priority patent/IN140295B/en
Publication of GB1446412A publication Critical patent/GB1446412A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D10/00—District heating systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/17—District heating

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Vascular Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Pipe Accessories (AREA)

Abstract

1446412 Fluid heater L M ELECTRONICS (HOLDINGS) Ltd and D F LENTON 4 Oct 1973 [5 Oct 1972] 45988/72 Heading H5H [Also in Division G3] An apparatus for heating fluids (e.g. blood transfusion liquid or anaesthetizing gases) flowing in a flexible tube, to a desired temperature, comprises a heating block 20 (Figs. 6, 10) having a channel 22 to receive the tube (e.g. nylon), electric heating elements 39, 40 formed of wire 43 wound around insulating strips 41, 42, e.g. mica, and embedded in parallel slots. The channel is U-shaped (or alternatively may be straight as in Figs. 1-5, not shown) with circular cross-section and one limb has an extended straight portion 35 whereby a single straight run of tube may be accommodated. The block is of die-cast aluminium/zinc alloy. A control circuit maintains the block at a fore-set temperature whereby fluid passing through will attain a required temperature, e.g. normal body temperature. Control circuit. Fig. 12.-Heater elements 65 (i.e. 39, 40 of Fig. 10) are connected in series with a transistor 67 and a thermal cut-out 66 across 12 Volt supply lines 60, 61. The block temperature is sensed by a thermistor 68 inserted in a hole 45 (Fig. 6) and connected in a bridge circuit including a desired temperature setting resistor 73 and resistors 71, 70, 74, 73, 75. The bridge output is a function of temperature error and is applied to an amplifier 69 and thence to an inverter 78 via a transistor 77. The inverter output controls a transistor 81 which in turn controls the transistor 67 and hence the heater current. In the event of excess temperature being sensed the cut-out 66 opens and a normally conducting transistor 90 will turn-off so that a green light-emitting diode 83 will be extinguished and a bleeper alarm 91 sounded. The alarm is energized under the control of an inverter 94 and NOR gate 96. Any fall in supply voltage is sensed by a differential amplifier 102 having one input connected to a divider 105, 106 across the supply lines 60, 61. If the potential at line 60 falls below a predetermined value a transistor 111 is rendered conducting, the potential in a line 112 will fall and as a result the green light diode 83 will cycle ON and OFF and the bleeper 91 will emit an intermittent signal. The electric supply may be derived from the mains or from a battery.
GB4598872A 1972-10-05 1972-10-05 Heating apparatus Expired GB1446412A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
GB4598872A GB1446412A (en) 1972-10-05 1972-10-05 Heating apparatus
ZA737720A ZA737720B (en) 1972-10-05 1973-10-02 Heating device
CA182,456A CA1008498A (en) 1972-10-05 1973-10-02 Heating device for fluid flowing in a flexible tube
AU60959/73A AU485684B2 (en) 1972-10-05 1973-10-03 Apparatus for heating a fluid flowing through a flexible tube
FR7335531A FR2202321B1 (en) 1972-10-05 1973-10-04
IT69924/73A IT999621B (en) 1972-10-05 1973-10-04 DEVICE FOR HEATING A FLUID, IN PARTICULAR A PHYSIOLOGICAL LIQUID
IL43373A IL43373A (en) 1972-10-05 1973-10-04 Heating device
DE19732350264 DE2350264A1 (en) 1972-10-05 1973-10-04 DEVICE FOR HEATING A FLUID FLOWING THROUGH A FLEXIBLE PIPE
ES419385A ES419385A1 (en) 1972-10-05 1973-10-05 Heating apparatus
JP48112226A JPS49133943A (en) 1972-10-05 1973-10-05
DD173903A DD107594A5 (en) 1972-10-05 1973-10-05
BE136417A BE805749A (en) 1972-10-05 1973-10-05 HEATING DEVICE
NL7313718A NL7313718A (en) 1972-10-05 1973-10-05
CH1426273A CH591865A5 (en) 1972-10-05 1973-10-05
IN2228/CAL/73A IN140295B (en) 1972-10-05 1973-10-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4598872A GB1446412A (en) 1972-10-05 1972-10-05 Heating apparatus

Publications (1)

Publication Number Publication Date
GB1446412A true GB1446412A (en) 1976-08-18

Family

ID=10439378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4598872A Expired GB1446412A (en) 1972-10-05 1972-10-05 Heating apparatus

Country Status (14)

Country Link
JP (1) JPS49133943A (en)
BE (1) BE805749A (en)
CA (1) CA1008498A (en)
CH (1) CH591865A5 (en)
DD (1) DD107594A5 (en)
DE (1) DE2350264A1 (en)
ES (1) ES419385A1 (en)
FR (1) FR2202321B1 (en)
GB (1) GB1446412A (en)
IL (1) IL43373A (en)
IN (1) IN140295B (en)
IT (1) IT999621B (en)
NL (1) NL7313718A (en)
ZA (1) ZA737720B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293762A (en) * 1978-02-16 1981-10-06 Genshirou Ogawa Temperature-controlled electric heating device for heating instillation or transfusion liquids
GB2130401A (en) * 1982-10-29 1984-05-31 Kendall & Co Variable temperature heating control system for inhalation therapy apparatus
US4532414A (en) * 1980-05-12 1985-07-30 Data Chem., Inc. Controlled temperature blood warming apparatus
EP0181447A1 (en) * 1984-09-21 1986-05-21 Stihler Medizintechnik GmbH Heating device for infusion and transfusion solutions
EP1588728A1 (en) * 2004-04-21 2005-10-26 Medtron AG Device for injecting a liquid from a syringe with a heated holder for the syringe
US20140329224A1 (en) * 2011-10-10 2014-11-06 DASGIP Information and Process Technology GmbH Biotechnological apparatus comprising a bioreactor, exhaust gas temperature control device for a bioreactor and a method for treating an exhaust gas stream in a biotechnological apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405610A1 (en) * 1977-10-07 1979-05-04 Leboeuf Lola ELECTRIC HEATING PLATE DEVICE FOR BLOOD TRANSFUSION DEVICE
JPS62295667A (en) * 1986-06-16 1987-12-23 小川　源之郎 Infusion liquid heater

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293762A (en) * 1978-02-16 1981-10-06 Genshirou Ogawa Temperature-controlled electric heating device for heating instillation or transfusion liquids
US4532414A (en) * 1980-05-12 1985-07-30 Data Chem., Inc. Controlled temperature blood warming apparatus
GB2130401A (en) * 1982-10-29 1984-05-31 Kendall & Co Variable temperature heating control system for inhalation therapy apparatus
EP0181447A1 (en) * 1984-09-21 1986-05-21 Stihler Medizintechnik GmbH Heating device for infusion and transfusion solutions
US4709135A (en) * 1984-09-21 1987-11-24 Stihler Medizintechnik Gmbh Device to heat infusion and transfusion solutions
EP1588728A1 (en) * 2004-04-21 2005-10-26 Medtron AG Device for injecting a liquid from a syringe with a heated holder for the syringe
US20140329224A1 (en) * 2011-10-10 2014-11-06 DASGIP Information and Process Technology GmbH Biotechnological apparatus comprising a bioreactor, exhaust gas temperature control device for a bioreactor and a method for treating an exhaust gas stream in a biotechnological apparatus
US10717960B2 (en) 2011-10-10 2020-07-21 Dasgip Information And Technology Gmbh Biotechnological apparatus comprising a bioreactor, exhaust gas temperature control device for a bioreactor and a method for treating an exhaust gas stream in a biotechnological apparatus

Also Published As

Publication number Publication date
IN140295B (en) 1976-10-09
DE2350264A1 (en) 1974-04-11
IL43373A0 (en) 1974-01-14
FR2202321B1 (en) 1974-11-08
DD107594A5 (en) 1974-08-12
CA1008498A (en) 1977-04-12
IT999621B (en) 1976-03-10
JPS49133943A (en) 1974-12-23
BE805749A (en) 1974-02-01
ES419385A1 (en) 1976-05-16
ZA737720B (en) 1974-08-28
FR2202321A1 (en) 1974-05-03
NL7313718A (en) 1974-04-09
CH591865A5 (en) 1977-09-30
IL43373A (en) 1977-12-30
AU6095973A (en) 1975-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]