WO2022039662A1 - Appareil et procédé de gestion d'une température d'au moins une partie du corps - Google Patents

Appareil et procédé de gestion d'une température d'au moins une partie du corps Download PDF

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Publication number
WO2022039662A1
WO2022039662A1 PCT/SG2020/050477 SG2020050477W WO2022039662A1 WO 2022039662 A1 WO2022039662 A1 WO 2022039662A1 SG 2020050477 W SG2020050477 W SG 2020050477W WO 2022039662 A1 WO2022039662 A1 WO 2022039662A1
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WO
WIPO (PCT)
Prior art keywords
liquid
cooling
temperature
tub
module
Prior art date
Application number
PCT/SG2020/050477
Other languages
English (en)
Inventor
Hsien Ts'ung TAY
Arif Uzair BIN MOHAMAD ROSLAN
Vicneswaran NAIDU
Vinoth PANNIRSILVAM
Original Assignee
Hope Technik Pte 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 Hope Technik Pte Ltd filed Critical Hope Technik Pte Ltd
Priority to PCT/SG2020/050477 priority Critical patent/WO2022039662A1/fr
Publication of WO2022039662A1 publication Critical patent/WO2022039662A1/fr

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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
    • A61F7/0053—Cabins, rooms, chairs or units for treatment with a hot or cold circulating fluid
    • 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
    • A61F7/0085—Devices for generating hot or cold treatment fluids
    • 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
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/0095—Arrangements for varying the temperature of the liquid
    • 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
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • 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
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/6089—Specific construction features for further massaging means, i.e. not for the nozzles
    • 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
    • A61H35/00—Baths for specific parts of the body
    • A61H35/008—Baths for specific parts of the body for the head
    • 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
    • A61F2007/0054—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water
    • A61F2007/0056—Heating or cooling appliances for medical or therapeutic treatment of the human body with a closed fluid circuit, e.g. hot water for cooling
    • 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
    • A61F2007/0086—Heating or cooling appliances for medical or therapeutic treatment of the human body with a thermostat
    • 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
    • A61H2201/01—Constructive details
    • A61H2201/0157—Constructive details portable
    • 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
    • A61H2201/0214—Characteristics of apparatus not provided for in the preceding codes heated or cooled cooled
    • 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
    • A61H2201/0242—Mechanism for heating or cooling by a fluid circulating in the apparatus
    • 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
    • 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
    • A61H2201/12—Driving means
    • A61H2201/1238—Driving means with hydraulic or pneumatic drive
    • A61H2201/1246—Driving means with hydraulic or pneumatic drive by piston-cylinder systems
    • 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
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1609—Neck
    • 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
    • A61H2201/50—Control means thereof
    • A61H2201/5023—Interfaces to the user
    • A61H2201/5043—Displays
    • A61H2201/5046—Touch screens
    • 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
    • A61H2203/00—Additional characteristics concerning the patient
    • A61H2203/02—Additional characteristics concerning the patient immersed in liquid
    • 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
    • A61H2230/00—Measuring physical parameters of the user
    • A61H2230/50—Temperature
    • A61H2230/505—Temperature used as a control parameter for the apparatus

Definitions

  • the present invention relates to an apparatus, and method for managing the temperature of at least one body part.
  • Another way of reducing a core temperature of the patient relies on the use of the vaporization of water to create a mist, in combination with a blower.
  • this technique is not mobile due to power needs and the non-portable nature of the system carrying out the technique.
  • there are limitations to this technique that leads to a less effective manner of lowering the core temperature of the patient.
  • an apparatus for managing a temperature of at least one body part including: a cooling module including a refrigeration sub-module, and a glycol supply submodule; an immersion module with a tub, the immersion module being configured to contain the at least one body part in the tub; and at least one support structure integrated with the immersion module.
  • the refrigeration sub-module is configured to cool glycol circulating in the glycol supply sub-module, and the cooled glycol is configured to cool the liquid source.
  • a method for managing a temperature of at least one body part including: obtaining temperature readings of an enclosure of liquid at fixed intervals; defining a desired temperature for the liquid in the enclosure; determining a cooling curve for the liquid; determining a cooling gradient from the cooling curve; and determining if the cooling gradient is greater than a pre-determined value.
  • the liquid is subject to further cooling when the cooling gradient is greater than the pre-determined value.
  • a system for managing a temperature of at least one body part the system being configured to carry out steps including: obtaining temperature readings of an enclosure of liquid at fixed intervals; defining a desired temperature for the liquid in the enclosure; determining a cooling curve for the liquid; determining a cooling gradient from the cooling curve; and determining if the cooling gradient is greater than a pre-determined value.
  • the liquid is subject to further cooling when the cooling gradient is greater than the pre-determined value.
  • FIG 1 is a schematic view of an embodiment of an apparatus for managing a temperature of at least one body part
  • FIGs 2A to 2D show various views of an embodiment of the apparatus of FIG 1 ;
  • FIG 3 shows a perspective view of an embodiment of the apparatus of FIG 1 ;
  • FIG 4 is a process flow for a first method for managing a temperature of at least one body part
  • FIG 5 is a process flow for a second method for managing a temperature of at least one body part.
  • FIG 6 shows a perspective view of an embodiment of a cooling station that can be configured to carry out the first method of FIG 4.
  • Embodiments of the present invention provide users with an apparatus for managing a temperature of at least one body part.
  • the apparatus can be used to lower a core temperature for a patient suffering from a heat injury, can be used to cool limbs of an individual prior to engaging in physically strenuous activities, can be used to cool limbs of an individual prior to prolonged exposure to environments with high temperature and so forth .
  • the apparatus is portable, and even though it requires a power source, the apparatus can operate by connecting to a power supply via a grounded connector, for example, a household power plug.
  • a method for managing a temperature of at least one body part The method can be carried out using the aforementioned apparatus, or by any other apparatus.
  • FIG 1 there is shown a schematic diagram of an apparatus 100 for managing a temperature of at least one body part.
  • managing the temperature pertains to lowering of the temperature of at least one body part.
  • the apparatus 100 is able to accommodate a patient for purposes of body immersion for core temperature management.
  • FIG 2 shows various views of an embodiment of the apparatus 100
  • FIG 3 shows another perspective view of the embodiment of the apparatus 100 as shown in FIG 2.
  • the apparatus 100 is shown to be able to accommodate a patient’s body, it can also be configured to accommodate at least one of the patient’s limbs or head.
  • the apparatus 100 can be used as a source of cooled water, for example, for water placed in pails in order to provide additional receptacles of cooled water.
  • the apparatus 100 includes a cooling module 110, and an immersion module 120.
  • the cooling module 110 requires a power supply to enable operability, and the power supply can be from a power grid, or from a portable generator.
  • the cooling module 110 includes a refrigeration sub-module 130, and a glycol supply sub-module 140.
  • the refrigeration sub-module 130 is configured to cool refrigerant circulated within the sub-module 130, interfacing with glycol circulated within the glycol supply sub-module 140 with a first heat exchanger 155.
  • the refrigeration sub-module 130 includes a compressor 135, an air-cooled condenser 140, a thermal expansion valve 145, a cooling fan and the first heat exchanger 155. It should be appreciated that the components of the refrigeration sub-module 130 are used as per typical purposes in the field of cooling cycles/thermodynamics.
  • the components of the refrigeration sub-module 130 are arranged in a manner to ensure cooling of the glycol circulated in the glycol supply sub-module 140, and the arrangement shown in FIG 1 should not be limiting in relation to configuration of the refrigeration sub-module 130.
  • the glycol supply sub-module 140 is configured to provide on-demand cooling to water circulating in the immersion module 120 via a second heat exchanger 170.
  • the glycol supply sub-module 140 includes a reservoir 160, a first pump 165, the second heat exchanger 170, and a pressure differential flow switch 175.
  • the reservoir 160 is configured to ensure that contents in the reservoir 160 are re-filled, without overflowing, once the contents are withdrawn from the reservoir 160.
  • the first pump 165 is configured to output glycol from the reservoir 160 when required.
  • the pressure differential flow switch 175 is configured to ensure that the glycol in the glycol supply sub-module 140 is maintained at low temperatures prior to freezing point, to ensure maximum cooling for water in the immersion module 120.
  • the immersion module 120 includes a tub 180, and a second pump 175.
  • the tub 180 is for placement of at least one body part of a patient, and is filled with a liquid for the cooling at least one body part.
  • the liquid can be water, or any appropriate non-toxic liquid.
  • the second pump 175 is configured to circulate the liquid in the tub 180 to pass through the second heat exchanger 170 to a plurality of directable nozzles (integrated in the tub 180) for inputting the cooled liquid into the tub 180 in a pressurised circulating manner.
  • FIG 2A shows a top view of an embodiment of the apparatus 100.
  • FIG 2B shows a perspective view of an embodiment of the apparatus 100.
  • FIG 2C shows a side view of an embodiment of the apparatus 100.
  • FIG 2D shows a frontal view of the apparatus 100.
  • FIG 3 shows another perspective view of an embodiment of the apparatus 100. Further features of the apparatus 100 will be described with reference to FIGs 2 and 3.
  • FIG 2 shows some sample dimensions of the apparatus 100. However, all the dimensions are customisable, and it should be appreciated that the apparatus 100 is sized in a manner that enables mobility in a medical facility (involving usage of elevators), and can be transported to any location in a vehicle that is configured to carry non-passenger loads. Lockable rollers at each edge of a base of the apparatus 100 also facilitate movement of the apparatus 100.
  • the apparatus 100 also includes a support structure 185, the support structure 185 being configured to provide neck support for a patient placed within the tub 180.
  • the support structure 185 is shown to be angled at an angle of 55° in FIG 2C, but this configuration is illustrative and can be varied.
  • the support structure 185 also provides an interface panel for locating equipment to monitor parameters of the patient placed within the tub 180 and parameters of the liquid contents in the tub 180. This interface panel will be visible in FIG 3 and will be described with reference to FIG 3. It is also possible that there is a second support structure, located at an opposite end of the tub 180.
  • a frontal portion 143 of the tub 180 is adjacent to the support structure 185.
  • the frontal portion 143 can include channels located within interspaced protrusions, the channels ensuring that the liquid contents in the tub 180 can be circulated over the patient’s back, Correspondingly, the channels located within the interspaced protrusions aid in increasing the patient’s body surface area that undergoes cooling,
  • the channels can be retro-fitted to the frontal portion 143 or can be pre-formed at the frontal portion 143. It should be noted that if there is another support structure at an opposite end of the tub 180, a rear portion 137 of the tub 180 can also include the channels located within interspaced protrusions (can also be retro-fitted).
  • the plurality of directable nozzles 195 for continuously pumping liquid into the tub 180 is located along a side of the tub 180. Each respective nozzle can be independently angled and can enable control of flow rates for each nozzle. The location ensures that the liquid is input into the tub 180 in a manner that improves circulation of the liquid, and coverage of the patient by the liquid.
  • the tub 180 also includes a drainage outlet 198 that is connected to outlet 133.
  • the outlet 133 can be connected to a piping assembly to facilitate dispensing of the liquid in the tub 180.
  • the piping assembly can include a tap.
  • the apparatus 100 requires a power supply to enable operability, and the power supply can be from a power grid, or from a portable generator.
  • a grounded connector 190 is located along a side of the apparatus 100 for ease of connection to the power supply.
  • FIG 3 shows a perspective view of the apparatus 100 from a different vantage position compared to FIG 2B.
  • FIG 3 shows the interface panel 193 for locating equipment to monitor parameters of the patient placed within the tub 180 and parameters of the liquid contents in the tub 180.
  • the interface panel 193 is configured in a manner which allow displays at the interface panel 193 to be viewed/accessed by a medical professional(s) tending to a patient in the tub 180 in a convenient manner.
  • the interface panel 193 can also be a storage area to ensure that resuscitation equipment is easily accessed.
  • FIG 3 shows a touchscreen control panel 183 for controlling the cooling module 110, to control/regulate a temperature of liquid contents in the tub 180.
  • the interface panel 193 also shows a patient monitoring device 173 that draws power from the apparatus 100.
  • the patient monitoring device 173 as shown is a MasimoTM RAD-97 device, which can monitor patient parameters such as, for example, oxygen saturation levels, pulse rate, perfusion index and so forth. It should be appreciated that the patient monitoring device 173 can be varied, and should not be limited to the MasimoTM RAD-97 device shown in FIG 3.
  • the interface panel 193 also shows a temperature monitor 178 that is portable and independently powered.
  • the temperature monitor 178 as shown is a GerathermTM Datatherm 2, which can monitor patient temperature via a rectal probe.
  • the temperature monitor 178 can carry out continuous temperature monitoring in realtime, and should not be limited to the GerathermTM Datatherm 2 device shown in FIG 3.
  • Typical use of the apparatus 100 will now be described.
  • a first scenario is for stabilizing a patient who has suffered a heat injury (for example, exertional/classical heat stroke, heat exhaustion, for cardiac cooling post cardiac arrest, or cardiopulmonary bypass), while a second scenario is for conditioning a person prior/subsequent to undergoing an extended period under high ambient temperature conditions (for example, while fire fighting, during explosives disposal, while participating in endurance exercises, during athletic events, and the like).
  • a heat injury for example, exertional/classical heat stroke, heat exhaustion, for cardiac cooling post cardiac arrest, or cardiopulmonary bypass
  • a second scenario is for conditioning a person prior/subsequent to undergoing an extended period under high ambient temperature conditions (for example, while fire fighting, during explosives disposal, while participating in endurance exercises, during athletic events, and the like).
  • the apparatus 100 can be moved to a desired location, and connected to a power supply (mains supply or portable generator).
  • a power supply mains supply or portable generator.
  • the tub 180 is filled with chilled water/water with ice while activating the requisite circulatory loops, before placement of a patient within the tub 180.
  • the patient is placed within the tub 180 in a manner whereby the patient’s head is positioned at the support structure 185.
  • liquid contents in the tub 180 are also circulated within the tub 180, correspondingly aiding in the lowering of the patient’s temperature. This is more effective than relying on conduction from the patient’s body to stagnant cold water in the tub 180.
  • the patient is then hooked up to both the patient monitoring device 173 and the temperature monitor 178.
  • the medical professional(s) overseeing the patient in the tub 180 then monitors parameters of the patient using both the patient monitoring device 173 and the temperature monitor 178, also monitors the temperature of the liquid contents in the tub 180 using the touchscreen control panel 183.
  • the temperature of the liquid contents in the tub 180 is monitored using a cooling curve.
  • the contents can be chilled water that starts at 15°C, which is chilled rapidly down to 3°C to 5°C using an initial load of ice to further lower the chilled water temperature, whereby the apparatus 100 then maintains the temperature of the liquid contents at 3°C to 5°C even when a substantial heat load is introduced into the tub 180, eg.
  • the touchscreen control panel 183 can be used to set a temperature for the liquid contents in the tub 180, and the cooling module 110 of the apparatus 100 ensures that a desired temperature of the liquid contents in the tub 180 is maintained by inputting chilled glycol from the reservoir 160 into its circulatory loop in the glycol supply sub-module 140, via the second heat exchanger 170. Maintaining the liquid contents in the tub 180 at a fixed temperature consequently leads to an optimized cooling rate, such the cooling gradient does not deviate substantially.
  • toggling the switch 188 to activate the plurality of nozzles 195 is for directing (circulating) water flow across the patient in order to prevent stationary or relatively slow-moving bodies of warm water from building up over the casualty, forming a thermal barrier and impairing heat exchange between the patient and the liquid contents in the tub 180.
  • a direction of flow from the plurality of nozzles 195 should be counter-current to the patient’s arterial blood flow, that is, from the periphery, inwards towards the heart.
  • the apparatus 100 can be moved to a desired location, and connected to a power supply (mains supply or portable generator).
  • a power supply mains supply or portable generator.
  • the tub 180 is filled with chilled water, before placement of forearms, legs or head of a patient within the tub 180.
  • the patient’s forearms are placed within the tub 180 in a manner whereby the forearms are fully submerged by the liquid contents in the tub 180.
  • the medical professional(s) controlling the apparatus 100 then monitors the temperature of the liquid contents in the tub 180 using the touchscreen control panel 183.
  • the temperature of the liquid contents in the tub 180 is monitored using a cooling curve.
  • the contents can be chilled water at 15°C and maintained at that temperature even with a substantial heat load in the tub 180, eg. forearms that have just exited a high temperature environment are placed within the tub 180.
  • the touchscreen control panel 183 can be used to set a temperature range for the liquid contents in the tub 180, and the cooling module 110 of the apparatus 100 ensures that a desired temperature range of the liquid contents in the tub 180 is maintained by inputting chilled glycol from the reservoir 160 into its circulatory loop in the glycol supply sub-module 140 via the second heat exchanger 170. Maintaining the liquid contents in the tub 180 at a fixed temperature range consequently leads to an optimized cooling rate, such the cooling gradient does not deviate substantially.
  • the apparatus 100 whilst the apparatus 100 is used to manage patients with heat injuries or to condition patients prior/subsequent to undergoing an extended period under high ambient temperature conditions, it is the portable aspect of the apparatus 100 that is advantageous.
  • the ease of powering the apparatus 100 using a single grounded connector is also advantageous.
  • the apparatus 100 is also designed to enable enhanced liquid circulation to both the front and the back of a patient, as well as optimize heat exchange from the patient by disrupting thermal barriers forming from stasis of water.
  • the use of the apparatus 100 to enable the carrying out a method for managing a temperature of at least one body part of a patient is important.
  • a first method 400 for managing a temperature of at least one body part of a patient will be described with reference to FIG 4.
  • the method 400 is carried out when at least one body part of a patient is placed within the tub 180.
  • the method 400 is appropriate for the second scenario that was mentioned earlier.
  • the method 400 will be described with reference to components of the apparatus 100, but it should be noted that the method 400 can also be carried out without use of the apparatus 100.
  • the sequence of steps for the method 400 can also be varied without changing a purpose of the method 400.
  • temperature readings are obtained of liquid contents in the tub 180 of the apparatus 100 at fixed intervals.
  • the interval can be within a range of two to ten minutes.
  • the liquid can be, for example, water, or any appropriate non-toxic liquid.
  • a desired temperature for the liquid in the tub 180 is defined.
  • the temperature can be within a range of 10°C to 15°C, 3°C to 5°C, and so forth.
  • the desired temperature can be input via the touchscreen control panel 183.
  • a cooling curve of the liquid in the tub 180 is determined. This can be done using the temperature readings obtained at step 410. Subsequently, at step 440, a cooling gradient can be determined from the cooling curve obtained at step 430.
  • Step 450 it is then determined if the cooling gradient is greater than a pre-defined value, for example, 0.3. If the cooling gradient is above the pre-defined value, there is a clear indication that the liquid in the tub 180 is heating up. Step 460 then follows, whereby cooled glycol is circulated within its circulatory loop in the glycol sub-module 140 in order to lower the cooling gradient in the tub 180.
  • a pre-defined value for example, 0.3.
  • Step 470 then follows, whereby the liquid in the tub 180 is left “as-is” as the liquid is at the desired temperature or temperature range.
  • FIG 6 there is shown an example of a cooling station 600 that can be configured to carry out the method 400.
  • the method 400 is carried out in the water receptacles 610 located on either side of a seating structure 620.
  • the method 400 described when using apparatus 100 can also be used for the cooling station 600.
  • the cooling station 600 as shown is located within a vehicle, the vehicle having a power supply and liquid refrigeration capabilities. Water introduced into the receptacles 610 can be drained after use and refilled with chilled water thereafter.
  • a second method 500 for managing a temperature of at least one body part of a patient will be described with reference to FIG 5.
  • the method 500 is carried out when at least one body part of a patient is placed within the tub 180.
  • the method 500 is appropriate for the first scenario that was mentioned earlier.
  • the method 500 will be described with reference to components of the apparatus 100, but it should be noted that the method 500 can also be carried out without use of the apparatus 100.
  • the sequence of steps for the method 500 can also be varied without changing a purpose of the method 500.
  • temperature readings are obtained of liquid contents in the tub 180 of the apparatus 100 at fixed intervals.
  • the interval can be within a range of two to ten minutes.
  • the liquid can be, for example, water, or any appropriate non-toxic liquid.
  • a desired temperature for the liquid in the tub 180 is defined.
  • the temperature can be within a range of 10°C to 15°C, 3°C to 5°C, and so forth.
  • the desired temperature can be input via the touchscreen control panel 183.
  • cooling of the liquid in the tub 180 is “boosted” to enable rapid cooling of the liquid.
  • ice can be placed in the tub 180 to enable the rapid cooling of the liquid.
  • a cooling curve of the liquid in the tub 180 is determined. This can be done using the temperature readings obtained at step 510. Subsequently, at step 550, a cooling gradient can be determined from the cooling curve obtained at step 540.
  • Step 560 it is then determined if the cooling gradient is greater than a pre-defined value, for example, 0.3. If the cooling gradient is above the pre-defined value, there is a clear indication that the liquid in the tub 180 is heating up. Step 570 then follows, whereby cooled glycol is circulated within its circulatory loop in the glycol sub-module 140 in order to lower the cooling gradient in the tub 180.
  • a pre-defined value for example, 0.3.
  • Step 580 then follows, whereby the liquid in the tub 180 is left “as-is” as the liquid is at the desired temperature or temperature range.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Pain & Pain Management (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Otolaryngology (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

La présente invention fournit à des utilisateurs un appareil permettant de gérer une température d'au moins une partie du corps. Par exemple, l'appareil peut être utilisé pour abaisser une température centrale d'un patient souffrant d'une blessure due à la chaleur, peut être utilisé pour refroidir les membres d'un individu avant qu'il ne s'engage dans des activités intenses sur le plan physique, peut être utilisé pour refroidir les membres d'un individu avant une exposition prolongée à des environnements à haute température et ainsi de suite. L'invention concerne également un procédé de gestion d'une température d'au moins une partie du corps. Le procédé peut être mis en œuvre à l'aide de l'appareil susmentionné, ou par n'importe quel autre appareil.
PCT/SG2020/050477 2020-08-17 2020-08-17 Appareil et procédé de gestion d'une température d'au moins une partie du corps WO2022039662A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SG2020/050477 WO2022039662A1 (fr) 2020-08-17 2020-08-17 Appareil et procédé de gestion d'une température d'au moins une partie du corps

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090240312A1 (en) * 2005-10-21 2009-09-24 Cincinnati Sub-Zero Products, Inc. Patient Temperature Control System With Variable Gradient Warming/Cooling
JP2011206556A (ja) * 2011-06-07 2011-10-20 Kci Licensing Inc 携帯型治療用冷却システム
US20120158103A1 (en) * 2010-12-20 2012-06-21 Medical Technology Inc. Cold therapy apparatus using heat exchanger
US20130116761A1 (en) * 2008-01-25 2013-05-09 Neurosave, Inc. Rapid Cooling of Body and/or Brain by Irrigating with a Cooling Liquid
KR20140110455A (ko) * 2013-03-08 2014-09-17 경북대학교 산학협력단 휴대형 뇌온도 강하장치
US20190151140A1 (en) * 2016-04-04 2019-05-23 Air Products And Chemicals, Inc. Indirectly cooled cryotherapy apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090240312A1 (en) * 2005-10-21 2009-09-24 Cincinnati Sub-Zero Products, Inc. Patient Temperature Control System With Variable Gradient Warming/Cooling
US20130116761A1 (en) * 2008-01-25 2013-05-09 Neurosave, Inc. Rapid Cooling of Body and/or Brain by Irrigating with a Cooling Liquid
US20120158103A1 (en) * 2010-12-20 2012-06-21 Medical Technology Inc. Cold therapy apparatus using heat exchanger
JP2011206556A (ja) * 2011-06-07 2011-10-20 Kci Licensing Inc 携帯型治療用冷却システム
KR20140110455A (ko) * 2013-03-08 2014-09-17 경북대학교 산학협력단 휴대형 뇌온도 강하장치
US20190151140A1 (en) * 2016-04-04 2019-05-23 Air Products And Chemicals, Inc. Indirectly cooled cryotherapy apparatus and method

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