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WO1999012608A1 - Appareil et procede de production de chaleur - Google Patents

Appareil et procede de production de chaleur Download PDF

Info

Publication number
WO1999012608A1
WO1999012608A1 PCT/SE1998/001616 SE9801616W WO9912608A1 WO 1999012608 A1 WO1999012608 A1 WO 1999012608A1 SE 9801616 W SE9801616 W SE 9801616W WO 9912608 A1 WO9912608 A1 WO 9912608A1
Authority
WO
WIPO (PCT)
Prior art keywords
body part
electrode
pulsed
heat
heat stimulation
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.)
Ceased
Application number
PCT/SE1998/001616
Other languages
English (en)
Swedish (sv)
Inventor
Daniel Larsson
Thomas Lundeberg
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.)
CEFAR MEDICAL AB
Original Assignee
CEFAR MEDICAL AB
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 CEFAR MEDICAL AB filed Critical CEFAR MEDICAL AB
Priority to AU91937/98A priority Critical patent/AU9193798A/en
Publication of WO1999012608A1 publication Critical patent/WO1999012608A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/06—Devices for heating or cooling such points within cell-life limits
    • 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
    • A61M19/00—Local anaesthesia; Hypothermia

Definitions

  • the present invention relates to an apparatus as well as a method for pulsed heat stimulation of an arbitrary part of the body.
  • the use of heat for stimulating and anaesthetising a part of the body is previously known.
  • various pain- relieving and anaesthetising substances are released in said part of the body.
  • the heat transfer furthermore causes a softening and massaging effect in the part of the body to be treated.
  • the heat is applied continuously to the part of the body to be treated.
  • an object of the present invention is to solve this problem and to provide a very efficient, pulsed heat stimulation in order to achieve as large a signal generation in the sensorial nervous system as possible.
  • the above object is accomplished by the provision of an apparatus and a method for pulsed heat stimulation of an arbitrary part of the body where the heat stimulation being applied to said body part at an arbitrary heat stimulation tempera- ture, has a frequency varying between 0.1 Hz and 20 Hz (cycles/second).
  • the pulsed heat stimulation may, at an arbitrary predetermined frequency, be given intermittently to an arbitrary part of the body during an arbitrary period of time.
  • Fig. 1 shows an apparatus for active heating and passive cooling, respectively, of an arbitrary part of the body
  • Fig. 2 shows an apparatus for active heating and active cooling, respectively, of an arbitrary part of the body
  • Fig. 3 shows another apparatus for active heating and active cooling, respectively, of an arbitrary part of the body
  • Fig. 4 shows a different embodiment of the apparatus of Fig. 3.
  • the invention relates to an apparatus and a method for pulsed heat stimulation of an arbitrary part of the body.
  • a supply of heat to the part of the body to be treated which has a frequency within the range of 0.1 Hz to 20 Hz, will not allow the body part to get used to the sensorial stimulation, entailing an enhancement of the therapeutical effect.
  • Heat receptors in the body have a maximum firing speed of about 10 Hz.
  • a heat stimulation frequency of about 10 Hz must be regarded as optimal and especially preferable.
  • frequencies as low as 0.1 Hz can be used.
  • the sensorial stimulation also increases, and thereby the therapeutical effect.
  • the limit for adaptation to the sensorial stimulation lies at 0.1 Hz.
  • thermode heat electrode
  • anxiolytic calming
  • This effect is most pronounced and clean (i.e. without any dominant influence on the fibres conveying heat) at a local temperature of about 38-41°C.
  • the maximum activation frequency for the individual heat receptor is about 6 Hz; thus higher pulse frequencies do not achieve any improved effect (at constant temperature stimulation).
  • control electronics 1 is used to control the heat pulsing frequency in the various electrodes 2, 3, 10, 13. These electrodes 2, 3, 10, 13 are applied to the skin area/body part 9 to be treated and are heated by means of control electronics 1 at a frequency preferably varying between 0.1 Hz and 20 Hz. Consequently, the body part 9 is supplied with pulsed heat with a frequency varying within said frequency interval.
  • the pulsed heat may be supplied intermittently to the body part 9.
  • pulsed heat is supplied with a frequency of 10 Hz to the skin area/body part 9 during a period of time of 10 seconds.
  • the pulsed heat is then removed from said skin area/body part 9 during a period of time of 10 seconds, etc.
  • the intermittent stimulation period and the pause period of time, respectively are both 10 seconds. It is of course to be understood that these intermittent stimulation intervals can be varied arbitrarily. Neither must the intermittent stimulation period be of the same length as the intermittent pause period.
  • the pulsed heat supplied to the skin area/body part 9 may e.g. be applied to a surface similar to TENS electrodes (Trans- cutaneous Electrical Nerve Stimulation), which have an area of about 3x5 cm and 5x 10 cm 2 .
  • Fig. 1 shows an apparatus comprising control electronics 1, an electrode 2 and the skin area/body part 9 to be stimulated.
  • This device utilises active heating of a heating element in the electrode 2 and passive cooling of said element.
  • Passive cooling means that the element is cooled by its environment when the current heat- ing the element is switched off or reduced.
  • the electrode 2 may use a Kapton element.
  • the Kapton element in the electrode 2 comprises a resistive loop being heated by a pulsed voltage from the control electronics.
  • a voltage pulsing of about 10 Hz means that the Kapton element is actively heated 10 times per second, and that the element in the electrode 2, between the pulses, i.e. 10 times per second, is cooled by its environment.
  • the pulsation frequency of the voltage is preferably varied between 0.1 Hz and 20 Hz. It is of course to be understood that also lower and higher frequencies may be used by the Kapton element of Fig. 1. It has been empirically found, with the different embodiments according to Figs. 1-4, that the selected voltage difference between a voltage maximum and a voltage minimum in the element is sufficient for generating a corresponding temperature difference, which by the treated patient is perceived as pulsed heat.
  • the heating element used in the electrode 2 should have as little mass as possible. A low mass of the element ascertains that it will not be “sluggish” in regard to quick temperature changes. Compare for example an aluminium foil that is scalding hot in the oven but will be at room temperature "instantly" outside the oven.
  • Fig. 2 shows an apparatus comprising control electronics 1, an electrode 3 with an element that is actively heated and actively cooled.
  • the electrode 3 is applied to the skin area 9 and is heated and cooled actively by the control electronics 1.
  • the electrode/element 3 thus lies in close contact with the skin area 9 when the electrode 3 is actively heated and cooled, whereby the electrode actively heats and cools, respectively, the part of the body closest to the skin area 9.
  • An example of such an element heating and cooling the electrode 3 is a Peltier element.
  • Peltier element when connecting a Peltier element to a DC source, it will act like a heat pump and may be used for heating and cooling.
  • the element uses the Peltier effect.
  • the hot side can be cooled by a heat exchanger.
  • Common applications are cooling/heating of laser components, fibre optics, floppy disks and hard disks, food and beverages. Correct mounting is important and the most common one is a mechanical mounting between a heat exchanger and the cooled object. Thermal grease may be applied to both sides of the element.
  • Figs. 3 and 4 depict an apparatus using an electrode 10, 13 comprising two elements 7, 8, 1 1, 12, of which one element 8, 12 is hot and the other element 7, 11 is cold. Both elements 7, 8, 1 1, 12 move e.g. up and down in cylinder arrangements 5,6 in the electrode 10, 13, as may be understood from the two-way arrows.
  • the elements 7, 8, 11, 12 are alternately in contact with the skin area 9 and will thus actively cause cold and heat, respectively, in the part of the body closest to the skin area 9.
  • the elements 7, 8, 11, 12 may be e.g. mechanically moved close to the skin area 9 or away from the skin area 9, by means of a motor. This will furthermore cause a certain mechanical stimulation in the part of the body closest to the skin area 9.
  • Fig. 3 shows the elements 7, 8 brought into contact with different locations of the skin area 9.
  • Fig. 4 shows the elements 1 1, 12 brought into contact with the same location of the skin area 9.
  • the above could be compared to having an ice cube in one hand and a heated ball in the other hand, and then alternately touching the skin with the ice cube and the heated ball at the same spot.
  • the embodiments according to Figs. 3 and 4 can easily achieve a heat stimulation frequency of 20 Hz.

Landscapes

  • Health & Medical Sciences (AREA)
  • Rehabilitation Therapy (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Finger-Pressure Massage (AREA)

Abstract

L'invention porte sur un appareil et un procédé de stimulation thermique pulsée d'une partie quelconque (9) du corps s'appliquant sur ladite partie (9) à une température de stimulation arbitraire et à une fréquence variant entre 0,1 et 20 Hz. Ladite fréquence produit une stimulation thermique pulsée très efficace entraînant dans le système nerveux une production aussi élevée que possible de signaux.
PCT/SE1998/001616 1997-09-11 1998-09-11 Appareil et procede de production de chaleur Ceased WO1999012608A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU91937/98A AU9193798A (en) 1997-09-11 1998-09-11 Apparatus and method for the generation of heat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9703285-8 1997-09-11
SE9703285A SE511201C2 (sv) 1997-09-11 1997-09-11 Anordning för generering av värmestimulering av kroppsdel

Publications (1)

Publication Number Publication Date
WO1999012608A1 true WO1999012608A1 (fr) 1999-03-18

Family

ID=20408219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001616 Ceased WO1999012608A1 (fr) 1997-09-11 1998-09-11 Appareil et procede de production de chaleur

Country Status (3)

Country Link
AU (1) AU9193798A (fr)
SE (1) SE511201C2 (fr)
WO (1) WO1999012608A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018008A1 (fr) * 2000-08-30 2002-03-07 Henri Declercq Dispositif de neurostimulation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177796A (en) * 1977-08-22 1979-12-11 Franco Vila Jose J Magnetic thermal vibrational device for the treatment of arthritis and the like
DE3340974A1 (de) * 1983-11-11 1985-05-23 Werner Dipl.-Phys. 8000 München Kraus Elektrotherapiegeraet
US4763657A (en) * 1987-04-06 1988-08-16 Chen Chen Wei Thermally-treated electronic acupuncturer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177796A (en) * 1977-08-22 1979-12-11 Franco Vila Jose J Magnetic thermal vibrational device for the treatment of arthritis and the like
DE3340974A1 (de) * 1983-11-11 1985-05-23 Werner Dipl.-Phys. 8000 München Kraus Elektrotherapiegeraet
US4763657A (en) * 1987-04-06 1988-08-16 Chen Chen Wei Thermally-treated electronic acupuncturer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP,A,06 178 820 (YOSHIDA KEIICHIRO HASEGAWA HIROSHI) 28 June 1994. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002018008A1 (fr) * 2000-08-30 2002-03-07 Henri Declercq Dispositif de neurostimulation

Also Published As

Publication number Publication date
AU9193798A (en) 1999-03-29
SE9703285L (sv) 1999-03-12
SE9703285D0 (sv) 1997-09-11
SE511201C2 (sv) 1999-08-23

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