JPH0622969A - Electric needle equipped with cooling device for applied part - Google Patents

Abstract

PURPOSE:To improve the cooling efficiency and relieve the pain applied to a patient by connecting a gas injection part of a nozzle with a liquefied gas container through a pipe and selectively carrying out the formation of cooled gas by the injection of liquefied gas and the current-carrying for the treatment operation of an electric needle. CONSTITUTION:In the depilation treatment, the gas injection time is set by a timer 13, and the current-carrying quantity and time of an electric needle are set by an electric adjustor 16, and then a nozzle 15 is fixed in the state directed to a skin pore to be depilated, and then a switch plate 21 is pushed to turn on a first switch 19. Then, a solenoid valve 12 is opened for the set time on the timer 13, and liquefied gas is jetted toward the skin pore from the nozzle 15 through a flexible tube 14 from a gas feeding part 4. Then, the top edge of the electric needle 18 is inserted upto reaching between the hair papillas at the base part of the hair root, and then the switch plate 21 is operated to close a second switch 20, and then the electric needle 18 is allowed to carry current through the electric current adjustor 16. Then, the electric needle 18 is pulled out, and then the liquefied gas is jetted again to cool the applied part, and the soothing effect is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric needle with a local cooling device for hair removal on the skin surface.

[0002]

2. Description of the Related Art Conventionally, among the methods of hair removal on the skin surface, the electrocoagulation hair removal method using an electric needle is excellent in that permanent hair removal can be performed in a short period of time without leaving scratches or stains on the skin surface. With this method, while observing the treated area on the skin surface with a magnifying glass, insert an electric needle along the hair deep into the pores, and when the tip of the electric needle reaches the papilla, The hair papilla is burned off by passing an electric current.
However, this method has the problems of pain due to needle insertion and energization and inflammation after treatment.

[0003]

Therefore, in the above electrocoagulation hair removal, in order to provide analgesia and prevent inflammation,
Prior to the insertion of the electric needle, a method such as paralyzing the treated area with a surface anesthetic, cooling with ice, or applying alcohol and cooling with this latent heat of vaporization is used. Such a method is not efficient, so
The amount of hair removal to be treated is limited, and the hair removal treatment requires several treatments and sometimes a period of several months. Further, since the above analgesic effect was not sufficient, there were cases where local redness persisted for nearly a month and further inflammation occurred. The present invention has been made in view of the above circumstances, and provides a local cooling device having a high analgesic effect and increasing the throughput.

[0004]

In the electric needle with a local cooling device of the present invention, a cooling device comprising a liquefied gas container and a gas jetting part consisting of a nozzle connected by a pipe via an electromagnetic valve,
An electric needle for applying a current to the needle head to treat the papilla is provided side by side, and a first switch for opening and closing an electromagnetic valve of the cooling device and a second switch for energizing the electric needle are provided. In addition, the means for solving the above-mentioned problems is to electrically connect the first switch and the second switch by a change-over switch arranged so as to be able to switch the energization. Further, in the electric needle with a local cooling device of the present invention, the solenoid valve may be provided with a setting timer for opening the solenoid valve by energizing the first switch for a certain period of time.
Further, as the liquefied gas, liquefied carbon dioxide, liquid nitrogen,
It is desirable to use any one of liquid air.

[0005]

The local cooling device of the present invention cools the liquefied gas pressurized in the gas cartridge by adiabatic expansion, and cools the cooled portion by injecting this cooling gas.
The cooling temperature is determined by the combination of the injection pressure of the cooling gas and the injection time. In the local cooling device of the present invention, the gas injection pressure can be adjusted by the regulator and the injection time can be adjusted by the timer. The cooling effect can be further enhanced by reducing the diameter of the nozzle through which the gas is injected. The local cooling device of the present invention is normally used, and the cooled part is -30 ° C.
If the gas vent nozzle is used, the cooled portion can be cooled to -30 to -60 ° C. If liquefied carbon dioxide is used as the liquefied gas and this is adiabatically expanded until dry ice is produced, the cooling temperature is -70 ° C.
Can be lowered to.

[0006]

The present invention will be described in detail below. FIG. 1 is a schematic configuration diagram of a main part of an embodiment of the present invention. Reference numeral 1 is a cooling portion, reference numeral 2 is a conducting portion, and reference numeral 3 is an ON / OFF state in which the cooling portion 1 and the conducting portion 2 are interlocked. The switch to be turned off is shown.

The cooling unit 1 is roughly composed of a gas supply unit 4, a control unit 5, and a gas injection unit 6.

The gas supply unit 4 comprises a plurality of gas cartridges 7, ..., A cutting device 8, a regulator 9, and a pressure gauge 10. As the liquefied gas for cooling, liquefied carbon dioxide, liquid nitrogen, liquefied gas such as liquid air is used, but it is preferable to use liquefied carbon dioxide from the viewpoints of price and safety. Also gas cartridge 7
As the ..., a mini cartridge such as a 95 cc container exempted from the high pressure gas control law is preferably used. A plurality (three in this embodiment) of the gas cartridges 7 are installed to facilitate replenishment, and are sequentially opened by the cutting device 8. The regulator 9 connected to the pressure gauge 10 can adjust the pressure when the liquefied gas is supplied.

The adjusting section 5 includes a tube 11, a solenoid valve 12,
And a timer 13. Solenoid valve 12
Is connected to the regulator 9 via the tube 11, and its operation is controlled by an electric signal from the switch 3. A low temperature solenoid valve or the like is preferably used as the solenoid valve 12. When the switch 3 is turned on, the solenoid valve 12 is opened, and at the same time, the timer 13 is activated. When the set time of the timer 13 elapses, the solenoid valve 12 is closed, and the solenoid valve 12 is opened only for the set time. The liquefied gas flows from the gas cartridge 7 toward the gas injection unit 6.

The gas injection part 6 is a flexible tube 1.
4 and nozzle 15. The flexible tube 14 is preferably flexible so that the direction of the tip of the nozzle 15 can be arbitrarily set, has excellent heat insulating properties for keeping the liquefied gas cool, and has a small heat capacity, such as a Teflon tube. Used. The tip of the nozzle 15 is thinned in order to enhance the cooling effect by the injection. The diameter of the tip of the nozzle 15 is preferably about 0.5 mmφ.

In the present embodiment, the energizing section 2 is interlocked with the cooling section 1 and both can be controlled by the switch 3. The current-carrying unit 2 is composed of a current regulator 16, a flexible tube 17 having a conductive wire inside, and an electric needle 18. That is, the electric needle 16 is connected to the current regulator 16 via the flexible tube 17, and the current regulated by the current regulator 16 flows to the tip of the electric needle 18. The current regulator 16 is turned on / off by the switch 3.

The switch 3 comprises a first switch 19 connected to the control valve 12 of the cooling unit 1 and a second switch 20 connected to the energizing unit. The switch 3 may be either a hand switch operated by hand or a foot switch operated by feet, but from the viewpoint of operability, the foot switch as shown in this embodiment is preferable. In this switch 3, when the switch plate 21 is first lightly pressed, the first switch 19 is turned on, the control valve 12 is opened, and the liquefied gas is injected from the nozzle 15. Subsequently, when the switch plate 21 is further pressed, the second switch 20 is turned on to energize the electric needle 18 of the energizing unit 2. Then, when the pressure of the switch plate 21 is released, the first switch 19 is turned on again, and the liquefied gas is injected from the nozzle 15.

2 and 3 show an example of an apparatus having the above-mentioned configuration. This device is a tabletop type in which a cooling unit and a current-carrying unit are integrated.
.., a pole 23 extending upward from the top surface 22a of the main body 22, a loupe 24 attached to the pole 23, a current-carrying portion 2, and a gas ejection portion 6.

The main body contains a regulator 9, a pressure gauge 10, an adjusting section 2, a current adjuster 16 and the like, and the front face 22b of the main body has a pressure gauge 10, a timer 13, and an ammeter of the current adjuster 16. Display boards 10a, 13a, 16a and operation buttons 10b, 13b, 16b for setting them to desired values
Is provided. Hooks 25, 26 for accommodating the nozzle 15 and the electric needle 18 are provided on the side surfaces 22c, 22d of the main body.
Is provided. The gas cartridges 7 ... Are fixed to the rear of the main body side surface 22c.

The pole 23 is provided with three swivels 27, 28, 29 whose height can be adjusted.
A light 31 and a loupe 24 are attached to the uppermost swivel 27 via a loupe flexible arm 30. An electric needle 18 is attached to the second swivel 28 via an electric needle flexible tube 17, and a nozzle 15 is attached to the bottom swivel 29 via a cooler flexible tube 14. A foot switch 3 is provided under the table.

The practitioner 32 is seated toward the front surface 22b of the main body, and the practitioner 32 is in front of the front surface 22b of the main body.
The bed 3 on which the person to be treated 33 lies between the body 22 and the body 22.
There is 4. In this local cooling device, the cooling part and the energizing part can be used in conjunction with each other, or each can be used alone, or only the cooling part can be used for purposes other than the epilation treatment. It is also possible to switch between automatic and manual.

Further, in this embodiment, the cooling effect can be further enhanced by using the gas vent nozzle. 5 (a) and 5 (b) exemplify this gas venting nozzle, and the gas venting nozzle 5 shown in FIG. 5 (a) is shown.
No. 0 is a disc-shaped jet plate 53 in which an enlarged diameter portion 51 is formed at the tip of the nozzle body and a plurality of holes 52 are formed in the enlarged diameter portion 51.
Is attached by a cover 54. The degassing nozzle 50 entrains the liquefied gas supplied through the flow passage 55 when passing through the expanded diameter portion 51 and ejected from the hole 52 at the center of the injection plate 53 at the tip, and the expanded diameter portion 51.
The temperature of the injection gas can be lowered by extracting the gas vaporized in step 2 from the surrounding holes 52. Further, in the gas vent nozzle 60 of FIG. 5B, an enlarged diameter portion 61 is formed on the nozzle tip side, and a ventilation portion 62 made of a breathable porous material is formed on the outer periphery of the enlarged diameter portion 61. The tip of the enlarged diameter portion 61 is reduced in diameter to form an injection hole 63. In the gas vent nozzle 60, the liquefied gas supplied through the flow path 64 passes through the expanded diameter portion 61 and the injection hole 6
When the gas is sprayed from No. 3, the temperature of the sprayed gas can be lowered by extracting the accompanying gas or the gas vaporized in the expanded diameter portion 61 from the ventilation portion 62.

Using the local cooling device having the above-mentioned structure, for example, hair removal processing is performed as follows. In advance, the gas pressure is set in the regulator 9, the gas injection time is set in the timer 13, and the electric needle energization amount and the energization time are set in the electric regulator 16. The energization time and the energization amount of the electric needle 18 are set according to a known method.

The gas pressure and the gas injection time are appropriately selected in consideration of the cooling temperature. For example, when the gas pressure of liquefied carbon dioxide is set to 20 kg / cm ² G and the gas injection time is 2 seconds, the cooling temperature is about 5 ° C. Similarly, 5 seconds is −10 ° C. and 8 seconds is − It becomes 30 ° C. Since the nozzle 15 has a small diameter, the cooling effect is sufficient in 2 to 5 seconds.

When the above settings are completed, the light 31 is turned on and the magnifying glass 24 is used to magnify and observe the skin surface of the subject 33, and the nozzle 15 is fixed with the pores facing the pores (FIG. 4). When the switch plate 21 is lightly pressed, the first switch 19 is turned on, the timer 13 is activated, the solenoid valve 12 is opened for a preset time, and the liquefied gas passes through the flexible tube 14 and is directed from the nozzle 15 to the pores. Is sprayed (pre-cooled).

Then, as shown in FIG. 4, the electric needle 18 is inserted so that the tip of the electric 18 needle reaches the nipple papilla 36 at the base of the hair root 35, and the switch plate 21 is continuously pressed to move the second needle.
When the switch 20 is turned on, the electric current adjusted by the current regulator 16 flows through the electric needle 18.

Then, when the electric needle 18 is pulled out and the pressure of the switch plate 21 is loosened, the second switch 20 is turned off and the current is stopped, the first switch 19 is turned on, and the cooling unit 1 is turned on again.
Is operated and liquefied gas is injected from the nozzle 15 (post-cooling).

As described above, since the cooling can be continuously performed before and after the electric needle is energized, the cooling efficiency is improved, and the analgesic effect and the anti-inflammatory effect are high.

Further, since the apparatus having the above-mentioned structure has a simple structure, it is easy to operate and maintain. In addition, the running cost is about 10% less than the price of the mini gas cylinder alone.
It is possible to remove hair for 2 to 3 people with one cylinder of ¥ 00. Incidentally, it is of course possible to use liquefied gas filled in a liquefied gas container having excellent heat insulation performance in place of the mini-gas cylinder of the above embodiment, and in this case, it can be conveniently used in a large hospital or the like.

In the above embodiment, the cooling unit 1 and the energizing unit 2 are also provided.
Although the local cooling device having a structure in which the above are integrated is shown, the local cooling device may be provided with only the cooling unit 1 alone. Such a local cooling device having only the cooling unit 1 can be used in combination with a conventional electrocoagulation hair removal device to perform a hair removal treatment with a high analgesic effect, and can be used for purposes other than hair removal treatment. Furthermore, if the local cooling device of only the cooling unit 1 and the conventional device for electrocoagulation and depilation are linked by using the switch 3 having the above-described configuration, the pre-cooling, treatment, and post-cooling can be easily controlled as described above. Yes, and more preferable.

[0026]

As described above, the electric needle with a local cooling device of the present invention is provided with a cooling device in which a gas ejecting portion composed of a nozzle is connected to a liquefied gas container via a solenoid valve by a pipe, and a needle head. In addition to an electric needle for passing an electric current to treat the papilla, a first switch for opening and closing an electromagnetic valve of the cooling device and a second switch for energizing the electric needle are provided. The first switch and the second switch are electrically connected by a changeover switch arranged so as to be able to switch the energization. Then, since the generation of the cool air gas by the injection of the liquefied gas in the cooling device and the energization of the processing operation of the electric needle are alternately switched, the processing work can be performed easily and the cooling efficiency can be improved, and the treatment can be performed on the subject. The treatment operation can be performed safely and hygienically without causing itching.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a main part of an embodiment of an electric needle with a local cooling device of the present invention.

FIG. 2 is a side view showing an embodiment of an electric needle with a local cooling device of the present invention.

FIG. 3 is a front view showing an embodiment of the electric needle with a local cooling device of the present invention.

FIG. 4 is a cross-sectional view of essential parts for explaining the usage state of an embodiment of the electric needle with a local cooling device of the present invention.

5A and 5B illustrate a gas venting nozzle that is preferably used for an electric needle with a local cooling device of the present invention, in which FIG. 5A is a sectional view showing an example thereof, and FIG. 5B is a sectional view showing another example. is there.

[Explanation of symbols]

 1 Cooling Section 2 Energizing Section 3 Switch 4 Gas Supply Section 6 Gas Injection Section 7 Gas Cartridge 9 Regulator 10 Pressure Gauge 12 Solenoid Valve 13 Timer 14 Flexible Tube 15 Nozzle 16 Current Controller 17 Flexible Tube 18 Electric Needle 19 First Switch 20 Number 2 2 switches

Claims (3)

[Claims] 1. A cooling device comprising a liquefied gas container in which a gas ejection part consisting of a nozzle is connected by a pipe via a solenoid valve, and an electric needle for applying an electric current to the needle head to treat the papillae. And a first switch for opening and closing the electromagnetic valve of the cooling device and a second switch for energizing the electric needle, and energizing between the first switch and the second switch can be switched. An electric needle with a local cooling device, characterized in that the electric needle is electrically connected by a changeover switch arranged in. 2. The electric needle with a local cooling device according to claim 1, wherein the solenoid valve is provided with a setting timer for opening the solenoid valve by energizing the first switch for a certain period of time. 3. The electric needle with a local cooling device according to claim 1, wherein the liquefied gas is any one of liquefied carbon dioxide gas, liquid nitrogen, and liquid air.