EP3160329A2 - Dispositif de stimulation thermique froide ou chaude et son procédé de contrôle et de régulation - Google Patents
Dispositif de stimulation thermique froide ou chaude et son procédé de contrôle et de régulationInfo
- Publication number
- EP3160329A2 EP3160329A2 EP15742350.0A EP15742350A EP3160329A2 EP 3160329 A2 EP3160329 A2 EP 3160329A2 EP 15742350 A EP15742350 A EP 15742350A EP 3160329 A2 EP3160329 A2 EP 3160329A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thermal
- cold
- stimulation
- temperature
- control
- 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.)
- Withdrawn
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
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4029—Detecting, measuring or recording for evaluating the nervous system for evaluating the peripheral nervous systems
- A61B5/4041—Evaluating nerves condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4824—Touch or pain perception evaluation
- A61B5/4827—Touch or pain perception evaluation assessing touch sensitivity, e.g. for evaluation of pain threshold
- A61B5/483—Touch or pain perception evaluation assessing touch sensitivity, e.g. for evaluation of pain threshold by thermal stimulation
-
- 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
-
- 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
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
- A61F2007/0075—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating using a Peltier element, e.g. near the spot to be heated or cooled
-
- 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
- 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
- A61F2007/0093—Heating or cooling appliances for medical or therapeutic treatment of the human body programmed
-
- 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
- A61F2007/0095—Heating or cooling appliances for medical or therapeutic treatment of the human body with a temperature indicator
- A61F2007/0096—Heating or cooling appliances for medical or therapeutic treatment of the human body with a temperature indicator with a thermometer
-
- 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
- A61F2007/0295—Compresses or poultices for effecting heating or cooling for heating or cooling or use at more than one temperature
Definitions
- the present invention relates to the general technical field of the exploration of receptors and fibers of the peripheral nervous system, in the context of basic research or clinical examination.
- Such an exploration is performed by tactile stimulation, more precisely pressure, electrical stimulation or thermal stimulation.
- small diameter myelinated fibers respond only to cold or painful stimulations (electrical or hot). Since it may be desired to avoid painful stimulation during the study of these fibers, their stimulation by the cold is particularly indicated. Electrophysiological investigation, for example electromyography or electroencephalography, requires very short stimulation times, of the order of a few tens of milliseconds.
- the invention also relates to the exploration of non-myelinated fibers, called C-fibers, by hot stimulation under the pain threshold, which is not possible with cold stimulations alone.
- the invention also relates to the exploration of myelinated fibers, referred to as delta fibers, responding to painful hot stimulations, since a cold stimulation activates the delta fibers without causing pain.
- the invention therefore relates more particularly to a thermal stimulation device and a control and control method controlling this thermal stimulation.
- This stimulation device comprises a block of thermal conductive material, maintained at a cold temperature between 1 ° C and 20 ° C via a standard Peltier module. Between the patient's skin and this block, there is a heating film to maintain a neutral temperature in contact with the skin. When the heating film is no longer powered and therefore no longer heats, it goes to the temperature of the block by simple thermal conduction. The skin is then stimulated.
- the major disadvantage of such a thermal stimulation device lies in the thermal conduction velocity of the materials used. In fact, this device makes it possible to obtain maximum cold stimulation rates of the order of -40 ° C./s, which is very insufficient.
- the document WO 2012/154787 also describes a device and a method of thermal stimulation.
- the device in question describes the use of micro-Peltier elements generating in particular cold.
- the Peltier elements in question are described in association with a temperature sensor of the thermocouple type. It should be noted, however, that this document very generally describes examples of embodiments of a thermal stimulation device as well as various control methods and in a relatively general manner, requiring the use of a heat transfer fluid to achieve the cold, which is particularly disadvantageous.
- the object of the present invention is therefore to overcome the disadvantages of the prior art and to provide a new thermal stimulation device for substantially increasing the cooling rates.
- Another object of the present invention is to provide a new, more accurate and more reliable thernic stimulation device while being more economical.
- Another object of the present invention is to provide a new thermal stimulation device for performing cold and hot stimulations and this extremely simple way.
- Another object of the present invention is to provide a novel method of controlling and controlling a thermal stimulation device to more accurately explore the nerve pathways.
- a device for cold or hot thermal stimulation of an animal or human tissue comprising a stimulation head intended to come into contact with said tissue and a control circuit and thermal control device for generating a stimulation temperature, characterized in that it comprises a mass of thermal inertia, micro-Peltiers elements integral with one side of the mass of thermal inertia to form an end of contact with the tissue , a heat sink, at least one Peltier module sandwiched between the mass of thermal inertia and the heat sink, at least one temperature sensor fixed on a free face of a micro-Peltier element, said sensor being connected to the circuit control and regulation, a power supply of micro-Peltier elements controlled by the control and regulation circuit to have their hot or cold faces e n contact with the mass of thermal inertia, the control and regulation circuit thus making it possible to produce a control loop for generating the cold or hot stimulation temperature, and a power supply for the Peltier module controlled by the control circuit and regulating
- the temperature sensor is a thermocouple.
- the control and regulation circuit integrates a microcontroller comprising a connection interface with a computer and a connection interface with a recorder of physiological parameters.
- the micro-Peltier elements separated from each other and arranged in the form of a network, are welded to the end face of the thermal mass of inertia, an electrical insulating material and heat filling the free spaces located between said micro-Peltiers elements.
- the thermal stimulation device comprises an additional temperature sensor continuously reading the temperature of the mass of inertia.
- control and control method for a device for thermal stimulation of an animal or human tissue characterized in that it consists of:
- control and control method for a device for thermal stimulation of an animal or human tissue is characterized in that it consists of:
- the method consists of continuously monitoring the measured temperatures.
- the method consists in using micro-Peltier elements to generate the cold or hot thermal stimulation temperature.
- the method consists in using a mass of thermal inertia and a heat sink, associated with a Peltier module to generate the neutral temperature.
- the method consists in using the mass of thermal inertia to evacuate thermal energy released by the micro-Pelts elements during cold thermal stimulation phases.
- the method consists in using the mass of thermal inertia to compensate for the thermal energy taken by the micro-Peltier elements during the hot thermal stimulation phases.
- the method consists in measuring the temperature of the fabric, according to a determined frequency and use the results of these measurements to determine or adjust the neutral temperature.
- the thermal stimulation device has the enormous advantage of being able to produce cold temperatures in very short time, for example with a preferential lowering of the temperature of the order of 300 ° C./s.
- a cooling rate allows a functional exploration of "Adelta" type nerve fibers or small diameter myelinated fibers, involved in nociception and at the origin of numerous pathologies of the nerve pathways.
- the size / power ratio of the micro-Peltier elements is particularly indicated to obtain such results.
- Another advantage of the stimulation device according to the invention lies in the possibility of integrating into the stimulation head, in association with the means generating a cold thermal stimulation, a laser source for generating hot thermal stimulations for further explorations. functional.
- Such an exemplary embodiment makes it possible to obtain very small stimulation surfaces, for example less than 1 mm 2 .
- the stimulation device according to the invention is also very compact and can be easily handled.
- the thermal stimulation device does not use heat transfer fluid.
- a stimulation device is thus obtained, which is particularly simple and stable in its operation. No operation of replacement of consumable product, of the liquid or gas kind, is necessary.
- the maintenance of the thermal stimulation device according to the invention is therefore particularly simple and economical.
- the stimulation device according to the invention has a high thermal conductivity allowing to return very quickly to the neutral temperature by simple thermal conduction.
- the thermal stimulation device according to the invention makes it possible to subject the fabric to alternating cold and neutral temperatures at a high frequency.
- the thermal stimulation device according to the invention is also remarkable insofar as it can be used to generate hot thermal stimulation with a rapid rise in temperature, preferably 300 ° C / s. This is linked to an additional heating by Joule effect of the micro-Peltier elements in addition to the thermo-electric effect of said micro-Peltiers elements during temperature rises.
- thermal stimulation device resides in an extremely rapid recovery of the neutral temperature as soon as the power supply of the micro-Peltier elements is cut off, particularly because of the small thickness and the low inertia. thermal end layer incorporating said micro-Peltiers elements.
- the cold stimulations can be repeated at a frequency of about 1 Hz to allow the neutral temperature to be restored after each cold or hot stimulation.
- Another advantage of the invention lies in the fact that all nerve pathway investigation protocols, including alternations of hot and cold stimulations, are accessible with a single thermal stimulation device according to the invention. It is therefore no longer necessary to change the application head or use separate devices adapted to specific protocols.
- FIG. 1 is a schematic view of an exemplary embodiment of a thermal simulation device according to the invention
- FIG. 2 is a schematic view from above of the free end of the stimulation head of the stimulation device of FIG. 1
- FIG. 3 is an example of an electronic architecture of a thermal stimulation device according to the invention
- FIG. 4 is a functional flowchart illustrating the steps of an exemplary implementation of a control and control method according to the invention.
- FIG. 1 is a schematic view of an exemplary embodiment of a thermal stimulation device according to the invention.
- This thermal stimulation device makes it possible to perform a cold stimulation of an animal or human tissue.
- the thermal stimulation device can generate cold or hot thermal stimulation.
- generation of cold stimulations is described in more detail, the invention, and in particular the method of control and regulation, also relate to the generation of hot thermal stimulations or alternations of hot and cold thermal stimulations.
- the thermal stimulation device comprises a stimulation head 2 intended to come into contact with the tissue 1.
- the thermal stimulation device also comprises a control and regulation circuit 3 making it possible, for example, to generate a cold stimulation temperature at one of the ends 4 of the stimulation head 2.
- the stimulation head 2 comprises a mass of thermal inertia 5 consisting for example of a block made of a thermal conductive material. This block of about 30 gr is for example made of copper or silver and has for example a diameter of 25 mm and a thickness of 10 mm. An end face 5a of the mass of thermal inertia 5, located in the vicinity of the contact end 4 of the stimulation head 2, is covered with micro-Peltiers elements 6.
- micro-Peltier elements 6 are advantageously secured to the mass of thermal inertia 5 by brazing.
- the micro-Peltier elements 6 illustrated in FIG. 2 are separated from each other so as to delimit free spaces between said micro-Peltier elements 6 having a thickness of approximately 0.6 mm. These free spaces are advantageously filled by an electrical and thermal insulating material 7, of the epoxy resin type loaded with glass or phenolic micro-balloons.
- the micro-Peltier elements 6 associated with the insulating material 7 therefore constitute an end layer 8 intended to come into contact with the fabric 1.
- the end layer 8 therefore advantageously has a thickness of about 0.6 mm and an extremely low thermal inertia.
- the end layer 8 also has a high thermal conductivity resulting from the material constituting the micro-Peltier elements 6 on the one hand and its small thickness on the other hand.
- micro-Peltier elements 6, for example sixteen in number is for example made in the form of a network having four rows 6a, 6b, 6c, 6d and four columns.
- the stimulation head 2 also comprises a heat sink 9.
- the latter is for example a passive heatsink of the high-power LED dissipator type.
- the heatsink 9 may also be a natural or forced convection heatsink or a heatsink using water as heat transfer fluid.
- Each micro-Peltier element 6 has a cold active face of about 6 mm 2 and a hot face of about 9 mm 2 , which is used for brazing on the thermal mass of inertia 5.
- the network of micro-Peltier elements 6, as illustrated in FIG. 2, advantageously has a power density greater than 20 W / cm 2 and preferably of the order of 80 W / cm 2 or more.
- the stimulation head 2 also comprises a standard Peltier module 10 sandwiched between the mass of inertia 5 and the heat sink 9.
- the Peltier module 10 has for example a power density of approximately 10 W / cm 2 .
- the Peltier module 10 has its hot face in contact with the heat sink 9 and its cold face in contact with the mass of thermal inertia 5.
- the power supply of the Peltier module 10 can also be reversed so that its hot face or in contact with the mass of thermal inertia 5 and to ensure a thermal regulation of said mass of thermal inertia 5 under certain conditions of use.
- the Peltier module 10 and the heat sink 9 thus make it possible to evacuate thermal energy from the mass of thermal inertia 5 or to supply thermal energy to the mass of thermal inertia 5 in order to keep it at a constant temperature. determined temperature.
- the stimulation head 2 also comprises at least one temperature sensor 11 attached to a free face of a micro-Peltier element 6.
- the temperature sensor 1 1 is advantageously a thermocouple having a diameter of 0.1 mm and therefore a very low thermal inertia.
- the temperature sensor 1 1 is welded to the free face of a micro-Peltier element 6.
- the temperature sensor 1 1 is obviously connected, by any known means, to the control and regulation circuit 3.
- the thermal stimulation device according to the invention is advantageously associated with a computer 12 on which specific software is installed for controlling the control and regulation circuit 3.
- Various information or physical parameters can, if necessary, be transmitted directly by the stimulation head 2 to the computer 12 and this by any type of known communication link.
- the stimulation head 2 and more particularly the micro-Peltier elements 6 and the Peltier module 10 are connected via the control and regulation circuit 3 to a power supply source 13.
- FIG. 3 is an example of an electronic architecture of the thermal stimulation device according to the invention.
- the control and regulation circuit 3 integrates a microcontroller 14 and a connection interface 3a with the computer 12.
- the power supply source 13 advantageously makes it possible to charge a battery 15 ensuring autonomous operation of the thermal stimulation device.
- the battery 15 and the control and regulation circuit 3 are advantageously integrated in a housing 3b. The latter is for example not integrated with the stimulation head 2.
- the thermal stimulation device may comprise supercapacitors accumulating the energy between two cold stimulations while being powered by a USB bus connected to the computer 12.
- the control and regulation circuit 3 makes it possible, by means of the battery 15, to deliver an electrical voltage of approximately 40 V to supply the micro-Peltier elements 6 and the voltage / current regulation circuit of said micro-Peltier elements 6
- Each row 6a, 6b, 6c, 6d comprising four micro-Peltier elements 6 connected in series, is powered independently by a voltage of 32 V. This limits the maximum voltage present at the level of the thermal stimulation head. 2 and ensure the safety of people in case of a fault in the electrical isolation.
- the control and regulation circuit 3 also makes it possible to supply a secondary power supply 16, delivering about 5 volts from the battery 15 to supply the logic electronics of the thermal stimulation device on the one hand and the Peltier module 10 on the other hand. somewhere else.
- the secondary electrical power supply 16 is advantageously made using, on the one hand, a "defolator" circuit integrated in the control and regulation circuit 3 and, on the other hand, the electric voltage delivered by the battery 15.
- the microcontroller 14 interprets the instructions received via the connection interface 3a, of the USB interface type, and accordingly drives four current regulators 17a, 17b, 17c, 17d respectively supplying the rows 6a, 6b, 6c, 6d of the micro-Peltier elements. 6.
- the microcontroller 14 drives a complementary current regulator 18 which supplies the Peltier module 10 so as to ensure the stability of the neutral temperature of the thermal mass of inertia 5.
- the microcontroller 14 also makes it possible to control the thermal stimulation device by means of temperature measurements 19 coming from the temperature sensor 11 and, if appropriate, by means of complementary measurements 20, originating from a temperature sensor.
- complementary temperature 21 disposed directly on the fabric 1. The use of such a complementary temperature sensor 21 facilitates continuous adjustment of the neutral temperature to the temperature of the fabric 1.
- the microcontroller 14 also drives a trigger 22 to generate a trigger signal for synchronizing a recorder of physiological parameters 23 with the cold thermal stimulations.
- the power supply of the micro-Peltier elements 6 is therefore controlled to have their hot faces on the mass of thermal inertia 5.
- the control and regulation circuit 3 thus makes it possible to produce a control loop for generating the cold stimulation temperature. at the end of the stimulation head 2.
- the power supply of the Peltier module 10 is controlled to have its hot face in contact with the heat sink 9 and its cold face in contact with the thermal mass of mass 5.
- the control and regulation circuit 3 thus makes it possible to achieve another thermal regulation loop to maintain the mass of thermal inertia 5 at a determined temperature called neutral temperature.
- This neutral temperature corresponds for example to the temperature of the fabric 1.
- the present invention also relates to a control and control method for a cold thermal stimulation device.
- the control and control method consists in determining a neutral temperature applied to the fabric 1. This neutral temperature corresponds, for example, to the ambient temperature and / or the temperature of the fabric 1 to be investigated.
- the complementary temperature sensor 21 disposed directly on said fabric 1 makes it easier to adjust the neutral temperature.
- the latter is established very quickly through the end layer 8 given its small thickness, its low thermal inertia and its high thermal conductivity.
- the method then consists in performing a thermal regulation on the neutral temperature by activating a regulation loop.
- the latter is obtained via the microcontroller 14 controlling the power supply of the Peltier module 10.
- the regulation loop is activated by default as long as no cold stimulation command is emitted by the computer 12.
- the control and control method then consists in determining a cold thermal stimulation temperature to be applied to the fabric 1 alternating with the neutral temperature.
- a command from the computer 12 then generates information requesting an eventual update of the temperature, duration and frequency parameters for the cold stimulations. It is therefore necessary to determine, modify or confirm a cold temperature, a duration and a frequency for the cold thermal stimulations to which the tissue 1 will be subjected.
- a regulation is made on the cold thermal stimulation temperature by activating a thermal regulation loop and deactivating the thermal regulation loop on the neutral temperature.
- the regulation on the cold stimulation temperature is obtained via the microcontroller 14 driving the power supplies of the micro-Peltiers elements 6 and more precisely each row 6a, 6b, 6c, 6d of micro-Peltiers elements 6.
- the thermal control loop on the neutral temperature is reactivated to restore the neutral temperature until the next cold thermal stimulation.
- the use of the complementary temperature sensor 21 advantageously disposed near the cold stimulation zone makes it possible to adjust the neutral temperature more finely.
- the temperature sensor 11 Since the two control loops use the same temperature sensor 1 1, it is necessary to deactivate the control loop on the neutral temperature during the cold stimulation phases. Indeed, during the cold stimulation, the temperature sensor 11 reads the cold temperature, which would have the effect of controlling a heating of the mass of thermal inertia 5 if the control loop on the neutral temperature remained activated. A global thermal disturbance would then be inevitable.
- the thermal stimulation device could comprise a specific temperature sensor reading the temperature of the mass of thermal inertia 5. In this case, it would not be necessary to deactivate the thermal loop. Neutral temperature control during cold stimulation phases.
- the control and control method according to the invention also consists in synchronizing the triggering of a recording of physiological parameters read on the tissue 1, following the triggering of the cold thermal stimulation.
- the implementation of the control and control method according to the invention consists in using the mass of thermal inertia 5 to evacuate the thermal energy released by the micro-Peltier elements 6 during the phases of cold thermal stimulation and to use the Peltier module 10 associated with the heat sink 9 to evacuate thermal energy from said mass of thermal inertia 5.
- the Peltier module 10 can also heat the mass of inertia 5. This can be the case when starting the stimulation device at room temperature of about 25 ° C. and that the temperature of the mass of thermal inertia 5 at the neutral temperature, for example at a temperature between 30 ° C and 34 ° C. Similarly, it may be necessary to heat the mass of thermal inertia 5 to maintain it at the neutral temperature and thus compensate for heat exchange with the ambient air.
- the supply of thermal energy to the mass of thermal inertia 5 may also be necessary during hot thermal stimulation, during which the micro-Peltier elements 6 take thermal energy from said mass of thermal inertia 5.
- the implementation of the method according to the invention therefore allows, without structural modification of the device, to generate either cold thermal stimulation or hot thermal stimulation.
- control and control method is therefore implemented by means of control codes integrated in a program loaded on the computer 12, specific to the various protocols for investigating nerve fibers.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
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- Medical Informatics (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1456033A FR3022761B1 (fr) | 2014-06-27 | 2014-06-27 | Dipositif de stimulation thermique et son procede de controle et de regulation |
| FR1552054A FR3022763A1 (fr) | 2014-06-27 | 2015-03-12 | Dispositif de stimulation thermique froide ou chaude et son procede de controle et de regulation |
| PCT/FR2015/051715 WO2015197983A2 (fr) | 2014-06-27 | 2015-06-25 | Dispositif de stimulation thermique froide ou chaude et son procédé de contrôle et de régulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3160329A2 true EP3160329A2 (fr) | 2017-05-03 |
Family
ID=51298880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15742350.0A Withdrawn EP3160329A2 (fr) | 2014-06-27 | 2015-06-25 | Dispositif de stimulation thermique froide ou chaude et son procédé de contrôle et de régulation |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20170224526A1 (fr) |
| EP (1) | EP3160329A2 (fr) |
| FR (2) | FR3022761B1 (fr) |
| WO (1) | WO2015197983A2 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10842406B2 (en) | 2017-02-08 | 2020-11-24 | Forest Devices, Inc. | Portable device for providing non-contact heat-evoked potentials |
| US11890223B2 (en) * | 2017-04-24 | 2024-02-06 | The Regents Of The University Of Michigan | Heating and cooling device |
| WO2021121437A1 (fr) * | 2020-03-23 | 2021-06-24 | 中国标准化研究院 | Dispositif de test pour tester une réaction de surface de la peau en cas de contact avec des objets chauds |
| CN111658304B (zh) * | 2020-06-29 | 2022-03-15 | 北京中关村水木医疗科技有限公司 | 下位机的控制方法、下位机及可读介质 |
| CN115887053A (zh) * | 2022-12-09 | 2023-04-04 | 武汉中科医疗科技工业技术研究院有限公司 | 热刺激装置、动物仓、科学实验仪器及热刺激控温方法 |
| CN119632512A (zh) * | 2024-12-19 | 2025-03-18 | 西安交通大学 | 一种应用于大鼠的可控热疼痛刺激装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5025796A (en) * | 1988-12-01 | 1991-06-25 | The United States Of America As Represented By The Department Of Health And Human Services | Apparatus and methods for determining in vivo response to thermal stimulation in in an unrestrained subject |
| US6139569A (en) * | 1998-07-31 | 2000-10-31 | Surx, Inc. | Interspersed heating/cooling to shrink tissues for incontinence |
| US6660026B2 (en) * | 2000-10-05 | 2003-12-09 | Seacoast Technologies, Inc. | Multi-tipped cooling probe |
| AU2002354042A1 (en) * | 2001-11-06 | 2003-05-19 | The Johns Hopkins University | Device for thermal stimulation of small neural fibers |
| ITRM20010764A1 (it) * | 2001-12-21 | 2003-06-23 | Ferdinando Ippolito | Dispositivo termostimolatore per indagini termografiche in dermatologia, oncologia, angiologia e capillaroscopia. |
| US20040267340A1 (en) * | 2002-12-12 | 2004-12-30 | Wit Ip Corporation | Modular thermal treatment systems with single-use disposable catheter assemblies and related methods |
| EP1631222B1 (fr) * | 2003-05-22 | 2007-01-03 | Medoc Ltd. | Sonde et procede de stimulation thermique |
| US8721632B2 (en) * | 2008-09-09 | 2014-05-13 | Tsunami Medtech, Llc | Methods for delivering energy into a target tissue of a body |
| EP2429386A4 (fr) * | 2009-05-11 | 2014-03-19 | Univ Queensland | Dispositif thermo-électrique |
| GB201107046D0 (en) * | 2011-04-26 | 2011-06-08 | Univ Brighton | Neuropathy test device |
| US9238133B2 (en) * | 2011-05-09 | 2016-01-19 | The Invention Science Fund I, Llc | Method, device and system for modulating an activity of brown adipose tissue in a vertebrate subject |
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| US9308123B2 (en) * | 2013-09-16 | 2016-04-12 | Neuraxis, Llc | Methods and devices for applying localized thermal therapy |
| WO2016110788A2 (fr) * | 2015-01-05 | 2016-07-14 | Profound Medical Inc. | Dispositif de régulation de la température d'une endocavité |
-
2014
- 2014-06-27 FR FR1456033A patent/FR3022761B1/fr not_active Expired - Fee Related
-
2015
- 2015-03-12 FR FR1552054A patent/FR3022763A1/fr not_active Withdrawn
- 2015-06-25 EP EP15742350.0A patent/EP3160329A2/fr not_active Withdrawn
- 2015-06-25 WO PCT/FR2015/051715 patent/WO2015197983A2/fr not_active Ceased
- 2015-06-25 US US15/322,216 patent/US20170224526A1/en not_active Abandoned
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015197983A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015197983A2 (fr) | 2015-12-30 |
| FR3022761B1 (fr) | 2021-04-02 |
| WO2015197983A3 (fr) | 2016-02-18 |
| FR3022761A1 (fr) | 2016-01-01 |
| US20170224526A1 (en) | 2017-08-10 |
| FR3022763A1 (fr) | 2016-01-01 |
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