Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
  • B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
  • B05B7/1613—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
  • B05B7/162—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed and heat being transferred from the atomising fluid to the material to be sprayed
• • 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
  • A61H9/00—Pneumatic or hydraulic massage
  • A61H9/005—Pneumatic massage
  • A61H9/0071—Pneumatic massage by localized pressure, e.g. air streams or jets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/0075—Nozzle arrangements in gas streams
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
  • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
  • B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
• • 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
  • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
  • A61H2201/02—Characteristics of apparatus not provided for in the preceding codes heated or cooled
  • A61H2201/0207—Characteristics of apparatus not provided for in the preceding codes heated or cooled heated
• • 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
  • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
  • A61H2201/02—Characteristics of apparatus not provided for in the preceding codes heated or cooled
  • A61H2201/0221—Mechanism for heating or cooling
  • A61H2201/025—Mechanism for heating or cooling by direct air flow on the patient's body
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
  • B05B7/02—Spray pistols; Apparatus for discharge
  • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
  • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
  • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet

Definitions

• the present invention essentially relates to a massage and / or care device by means of a jet of drops of liquid emitted by a nozzle, this device being capable of being used by professionals of beauty and well-being or care.
• a jet of drops of a liquid such as water
• a liquid supply circuit at a pressure, called d emission greater than the atmospheric pressure
• d emission a pressure
• the liquid coming out of the nozzle undergoes a relaxation which makes it suddenly pass from the emission pressure to the atmospheric pressure and causes it to split into drops projected into the atmosphere.
• the drops of liquid emitted by a nozzle are cooled.
• This cooling phenomenon is used in particular for the production of snow from cold water in the prior art.
• it is easy to cool drops emitted by a nozzle it is in practice impossible to heat these drops by heating the liquid before spraying, when massage applications of the human body are envisaged.
• the phenomenon of relaxation prevails over the heating before the relaxation and requires to heat the liquid in the supply circuit at temperatures that may cause burns of the skin.
• the essential safety conditions for a massage use are not fulfilled, especially when stopping the spray, when the pressure in the feed circuit of the nozzle becomes insufficient to form drops and the jet takes the form of a cylindrical jet.
• the cooling by the trigger disappears and the liquid of the supply circuit is sent into the atmosphere at its heating temperature, causing burns on the body that receives it.
• Adjusting the temperature of the drops of a jet of water or liquid, emitted by a nozzle would also be particularly interesting in the context of body care protocols by jet droplets, in which the temperature of the drops and the force of their jet or "stung" on the skin would vary during care.
• the temperature of the drops on the skin is, especially because of the relaxation, colder than that of the atmosphere. It is also quickly variable with the nozzle supply pressure that gives strength to the jet and with the distance between the skin and the nozzle.
• the expansion nozzles of known devices are in practice unusable for pleasant massage applications of the human body although they are economical in water and inexpensive, consisting of a calibrated hole. . . .
• the invention proposes a device for massaging and / or caring for the human body by means of a jet of liquid drops, comprising a liquid supply circuit at a pressure greater than the pressure of the atmosphere, connected to a nozzle emitting a jet of liquid divided into drops in the atmosphere, characterized in that it comprises a source of heat and a means generating around the jet a stream of gas ensuring a heat transfer between the heat source and the drops, and means for controlling the heat source and the means generating the gas flow, for adjusting the temperature of the drops of the jet to a desired value upon their arrival on a human body.
• the means for generating the gas flow is constituted by the wake of the jet, which draws the gas towards the drops,
• the means for generating the gas stream comprises a fan, which pushes the gas towards the drops
• the means for generating the gas stream comprises a nozzle arranged between the heat source and the drops
• the nozzle is at least partly cylindrical or frustoconical, the nozzle guides the stream of gas in a direction that is substantially parallel, inclined or substantially perpendicular to the mean direction of the jet;
• the heat source comprises an electrical resistance, - programmed or manual means are provided to vary the strength of the jet and the temperature of its drops.
• the advantages of the invention include an increased independence between the emission pressure upstream of a nozzle emitting a jet of drops, the transport distance of these drops downstream of the nozzle, and the temperature of these drops downstream. of this nozzle, allowing the use of inexpensive emission nozzles and liquid-saving, under upstream pressure conditions of variable liquid and drops downstream temperature substantially constant or set to a desired value.
• FIG. 1a and 1b show a device according to the invention using a fan and a coaxial nozzle guiding a gas stream in a direction substantially parallel to the mean direction of emission of the drops;
• FIG. 2 represents a jet coaxial nozzle comprising a truncated cone and receiving a hot air stream produced at a distance;
• FIG. 3 represents a nozzle directing the gas stream in an inclined manner with respect to the mean direction of emission of the drops
• FIG. 4 represents a radial nozzle directing the stream of gas perpendicular to the jet of drops.
• the device according to the invention comprises a fan and a nozzle used together with a jet of drops of a liquid such as water to generate a stream of a gas such as air directed on and around drops, and in which an electrical resistance is used as a source of heat.
• the nozzle is an air-water nozzle, providing better stability, better directionality and less dispersion of the drop sizes emitted.
• a water-only nozzle is usable in this device.
• the embodiment shown comprises a spraying nozzle 1 emitting a jet of drops 2 of a liquid which is water, in an air atmosphere, a channel 3 for the arrival of liquid in the nozzle and a channel 3 'for supplying air to the nozzle, a heat source or heating element which is an electrical resistance 4 a fan 5 and a nozzle 6 surrounding at least the heating element and preferably the nozzle until by jet of drops, and means C of power supply and control of the resistor 4 and the fan 5.
• the nozzle conducts the air between the heat source and the drops, contributes to the formation of an atmospheric current and improves the heat transfer between the heat source and the drops, when the air is either sucked to the drops by the wake of the jet, or pushed to the drops by the fan.
• the geometries of the nozzle and the relative positions of the nozzle, the heat source and the fan can be determined to optimize the transfer of the atmosphere between the heat source and the drops.
• a frustoconical nozzle in which the nozzle is arranged allows for example this optimization of the air transfer.
• the optimal positions of the fan, the heat source and the nozzle, as well as the length and shape of the nozzle, can be determined by testing, in order to optimize the heat transfer between the heat source and the drops.
• the nozzle has a cylindrical shape and comprises an inlet port and an outlet port in which the heating element is disposed, the nozzle being disposed at the outlet port and the fan at the outlet. inlet port.
• the drops are emitted entirely outside the nozzle.
• an extension of the nozzle would produce the drops in the nozzle and propagate in a portion thereof, to improve heat transfer.
• the wake of the jet that is to say the air in contact with the jet drops, attracts the surrounding air to the drops and allows the operation of the invention.
• the gas stream for heating the drops is then generated solely by this wake.
• the efficiency measured by the temperature rise of the drops is lower in this simple configuration, and the heat transfer is less efficient.
• the temperature rise of the drops is greater and the heat transfer more efficient, the gas stream being better formed by guidance by the nozzle. It is with the nozzle and the fan in operation that the heat transfer from the source to the drops is the best.
• the thermal inertia of the heat source is minimized, which is advantageous when the temperature response time of the device is an important parameter.
• the nozzle may be frustoconical, the nozzle being disposed in the vicinity of the small base and the fan towards the large base of the truncated cone. It is useful to note that the nozzle allows the admission of fresh air as much as the expulsion of heated air into the atmosphere, thanks to its two orifices.
• the invention ensures a circulation of air, it avoids stagnation and with a heat source heating the air to a sufficient temperature, of the order of a few hundred degrees Celsius, it can destroy germs present in the air.
• the nozzle is a mixed air-water nozzle supplied with air at a relative pressure of 0.3 bar and in water at a relative pressure of 0.1 bar, the flow rate of water being of the order of 1.5 liters / hour.
• the fan provides an airflow of the order of 50 liters per minute and is powered by a voltage of 12V.
• the heating electric resistance is powered by 24V, the value of this resistance is 1ohm and its power consumption can be between OW (cold spray), 100W (fresh spray) and 250W (hot spray).
• the temperature of the drops on their arrival on the skin of a person is between 32 0 C and 47 ° C, this temperature should not exceed 35 0 C when the jet is directed on the face and up to 47 ° C when it is directed on the back of the person.
• the air of the gas stream is initially very hot, it can carry the drops of water at an elevated temperature, for example close to 90 ° -100 ° C., which sterilizes them.
• the water of the drops cools very quickly during its journey to the skin, to touch it at a temperature between 35 0 C and 47 ° C, the distance between the nozzle 1 and the skin being between 22 and 50 cm depending on the type of massage or care performed.
• the control of the electrical resistance 4 and the fan 5 makes it possible to switch very quickly from hot to cold and vice versa, by ensuring that the drops of the jet are not sprayed, to avoid any risk of burns.
• the size of the drops varies essentially according to the air pressure supplying the nozzle 1.
• a relatively low air pressure makes it possible to have larger drops, likely to cause a feeling of pressure on their arrival on the skin.
• Higher air pressure decreases the size of the drops and reduces or cancels the feeling of pressure.
• the jet coaxial nozzle 7 comprises a pipe of smaller diameter upstream of the nozzle than downstream or at the level of this nozzle, so as to provide a substantially constant air passage section in the nozzle, the pipe having a frustoconical shape at the time of its diameter change to minimize the pressure losses.
• the hot air flow 8 supplying the nozzle can be produced remotely and the heat source can be deported, if the thermal losses caused by the offset of the source of heat and heat transport are compatible with the heat transfer necessary for the invention.
• this nozzle can take the form of a truncated cone.
• the length of the pipe upstream or downstream of the narrowing may be chosen to be zero or low in additional embodiments.
• the nozzle comprises at least one pipe guiding the atmosphere in a coaxial direction or parallel to the mean direction of propagation of the jet of drops.
• Other nozzle configurations are in particular possible, by inclination of the direction of guidance of the atmosphere with respect to the jet, by multiplication of guide elements such as pipes providing a certain directionality of the guide or such as simple holes, diffusing air and providing a little directional guidance and which can be likened to pipes of zero length.
• the nozzle is composed of a set of pipes 9, 10, two in the drawing, converging towards the relaxation zone or beyond.
• the nozzle comprises at least one pipe guiding the atmosphere in a centripetal direction or inclined relative to the mean direction of propagation of the jet of drops.
• the nozzle 12 is annular, in the form of a torus or an air chamber, and is provided with air outlet holes 11 perpendicular to the direction of emission of the drops upstream or in an area close to the nozzle.
• the nozzle comprises at least one pipe guiding the atmosphere in a direction radial or perpendicular to the mean direction of propagation of the jet of drops.
• the direction of air guidance can be defined only by extension, a hole being able to diffuse air in directions located in an emission cone angle at the top very wide.
• the positioning of the various elements of the invention, fan, nozzle and heating element upstream of the nozzle makes it possible to shorten or optimize the distance between this nozzle and the human body benefiting from the massage, compared to a positioning of these elements downstream of the nozzle.
• the upstream positioning of the elements also makes it possible to maximize the force of the jet, for a given nozzle supply pressure, and to minimize the cooling of the drops. decreasing their path and heat exchange in the atmosphere, for a given heating power, dissipated in the heating element.
• control parameters are meant the temperature of the heat source, the air and water pressures in the nozzle, the speed of the fan and the positioning of the nozzle in orientation and distance relative to the body.
• the control can be done by an operator or automatically by a computer, according to pre-programmed or programmed sequences, to vary the force of the jets and the temperature of the drops.
• the invention is also applicable to the production of a hand tool for administering a skin care.
• the physical control parameters which are the temperature of the heat source, the air and water pressures in the nozzle, the speed of the fan and the positioning of the nozzle in orientation and distance to the body , are adjusted by an operator, to vary the force of the jet and the temperature of the drops.
• the invention may therefore comprise:
• the invention makes it possible to heat the drops of a jet of a nozzle so as to obtain a reproducible and stable temperature of the drops at a typical distance of twenty-five centimeters (distance from the human body to the nozzle), while allowing a variation of this distance due to movements inevitable of the body without causing a sensation of cold, which is perceptible by the human body when the thermal variation is of a degree Celsius.
• the invention is particularly applicable to pleasant massage and care of the human body or one of its parts, for example face, foot or back, by one or more jets of drops of liquid.

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• Health & Medical Sciences (AREA)
• Epidemiology (AREA)
• Pain & Pain Management (AREA)
• Physical Education & Sports Medicine (AREA)
• Rehabilitation Therapy (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Massaging Devices (AREA)
• Percussion Or Vibration Massage (AREA)

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• 2008
  • 2008-07-29 FR FR0804318A patent/FR2934507B1/fr not_active Expired - Fee Related
• 2009
  • 2009-07-28 US US13/056,061 patent/US20110190671A1/en not_active Abandoned
  • 2009-07-28 EP EP09802558.8A patent/EP2310138B1/de active Active
  • 2009-07-28 WO PCT/FR2009/000939 patent/WO2010012903A1/fr active Application Filing
  • 2009-07-28 CA CA2731992A patent/CA2731992C/fr not_active Expired - Fee Related

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