CA2380664A1 - Reusable heat pack - Google Patents

Reusable heat pack Download PDF

Info

Publication number
CA2380664A1
CA2380664A1 CA002380664A CA2380664A CA2380664A1 CA 2380664 A1 CA2380664 A1 CA 2380664A1 CA 002380664 A CA002380664 A CA 002380664A CA 2380664 A CA2380664 A CA 2380664A CA 2380664 A1 CA2380664 A1 CA 2380664A1
Authority
CA
Canada
Prior art keywords
heat pack
reusable heat
inorganic substance
solution
supercooled supersaturated
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
CA002380664A
Other languages
French (fr)
Other versions
CA2380664C (en
Inventor
Chhatrapal Sharma
Rajendra Kumar Sharma
Chandra Kant
Ajit Kumar Sarkar
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.)
Council of Scientific and Industrial Research CSIR
Original Assignee
Council of Scientific and Industrial Research CSIR
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 Council of Scientific and Industrial Research CSIR filed Critical Council of Scientific and Industrial Research CSIR
Publication of CA2380664A1 publication Critical patent/CA2380664A1/en
Application granted granted Critical
Publication of CA2380664C publication Critical patent/CA2380664C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
    • A61F2007/0293—Triggers, activators or catalysts therefor

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Seasonings (AREA)

Abstract

The invention discloses a reusable heat pack comprising a soft sealed plastic bag containing a mixture of supercooled supersaturated recrystalizable solution of inorganic substance, alcohol, chemical compound additives, and means to trigger recrystallization of supercooled supersaturated recrystalizable solution of inorganic substance.
CA002380664A 2001-03-30 2001-03-30 Reusable heat pack Expired - Fee Related CA2380664C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2001/000074 WO2002078584A1 (en) 2001-03-30 2001-03-30 Reusable heat pack

Publications (2)

Publication Number Publication Date
CA2380664A1 true CA2380664A1 (en) 2002-09-30
CA2380664C CA2380664C (en) 2008-01-15

Family

ID=11076336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002380664A Expired - Fee Related CA2380664C (en) 2001-03-30 2001-03-30 Reusable heat pack

Country Status (11)

Country Link
JP (1) JP2004516876A (en)
KR (1) KR100476123B1 (en)
AU (1) AU771018B2 (en)
CA (1) CA2380664C (en)
CZ (1) CZ20021110A3 (en)
HU (1) HUP0303373A2 (en)
NO (1) NO20021232L (en)
PL (1) PL199033B1 (en)
RO (1) RO119342B1 (en)
SK (1) SK287136B6 (en)
WO (1) WO2002078584A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT409931B (en) 2001-01-30 2002-12-27 Gluderer Lothar Erich FOIL WANNENBIOSTEUERUNG
KR20040081275A (en) 2003-03-14 2004-09-21 삼성전자주식회사 Apparatus of driving light device for display device and method thereof
JP2015124268A (en) * 2013-12-26 2015-07-06 古河電気工業株式会社 Heat storage material composition, and heat storage device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913559A (en) * 1972-02-07 1975-10-21 Kay Laboratories Inc Constant temperature device
US4331556A (en) * 1978-01-03 1982-05-25 Kay Laboratories, Inc. Heat storage material
GB2055054B (en) * 1979-08-01 1983-12-21 Kay Laboratories Inc Combination of chemicals and method for generating heat at a controlled temperature and a hot pack containing such a combination
JPS58180575A (en) 1982-04-19 1983-10-22 Earth Chem Corp Ltd Instantaneous cooling pack
US4532110A (en) 1983-12-27 1985-07-30 Imants P. Kapralis Protected trigger to controllably initiate crystallization
US4572158A (en) 1984-09-12 1986-02-25 Topazon Limited Trigger to activate aqueous salt solution for use in a heat pack and method of making the same
US5058563A (en) 1990-06-15 1991-10-22 Prism Technologies, Inc. Reusable warmers of the type employing a super-cooled solution and an activator
US5205278A (en) 1992-05-01 1993-04-27 Wang Ching Chuan Chemical bag warmer
US5736110A (en) * 1995-05-16 1998-04-07 Angelillo; Stephen P. Activator for initiating crystallization of a supersaturated solution
US5843145A (en) 1996-01-23 1998-12-01 Dura-Kold Corporation Reusable hot/cold temperature pack

Also Published As

Publication number Publication date
RO119342B1 (en) 2004-08-30
NO20021232D0 (en) 2002-03-13
CA2380664C (en) 2008-01-15
NO20021232L (en) 2002-10-10
AU6059501A (en) 2002-10-15
PL199033B1 (en) 2008-08-29
HUP0303373A2 (en) 2004-03-29
JP2004516876A (en) 2004-06-10
WO2002078584A1 (en) 2002-10-10
SK4392002A3 (en) 2002-12-03
KR20020092346A (en) 2002-12-11
SK287136B6 (en) 2010-01-07
CZ20021110A3 (en) 2003-02-12
KR100476123B1 (en) 2005-03-10
PL357248A1 (en) 2004-07-26
AU771018B2 (en) 2004-03-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130402