TW201536113A - Battery operated air plasma spray - Google Patents

Abstract

A battery operated air plasma spray was designed, developed and successfully demonstrated. The power supply to run the plasma generator includes a battery, a dc HID ballast and a series LC matching circuit. This matching circuit is designed to maintain the performance of the HID ballast while driving arc discharges, which are rotated around the electrodes by the magnetic field of a ring magnet. The produced plasma is in a non-equilibrium state; thus, the plasma effluent is low temperature (touchable) and yet carries abundant reactive atomic oxygen, which can rapidly activate blood coagulation processes and can effectively kill numerous microbes. This invention is for blood coagulation and sterilization applications. The device may be installed in vehicles and carried and operated in open fields without AC power sources. It may be used for bleeding control in a serious mishap to treat wounds without having to move the injured.

Description

Battery operated air plasma fluid jet

The present invention relates to the design of a battery operated portable air plasma fluid jet machine for use in hemostasis and sterilization.

Severe bleeding, even if it is a trauma, if it can not be stopped as soon as possible, it may be life-threatening (refer to this article: P.Jevon and L.Cooper, "First aid.Part 5.First-aid treatment for Slight bleeding," Nursing Times , 104, 26-27, 2005). Most severe bleeding occurs in an emergency. Treatment includes emergency hemostasis, repairing the cause of bleeding, relieving symptoms, and preventing complications. Therefore, new first aid methods and equipment can effectively stop bleeding, which can save the lives of injured people, especially on the battlefield (refer to this article: USA Today, “Advanced first aid for troops sought,” A1, 14 September 2009).

US Patent: US7777151B2 entitled "Portable Plasma Sterilizer," (hereinafter "151 Patent"), which describes a plasma torch module that can operate in a low frequency (eg, 60 Hz) cycle mode to produce low temperature unbalanced air electricity. Slurry fluid. A non-heat-balanced atmospheric air plasma fluid that carries a high amount of active oxygen atoms (RAO), which effectively activates red blood cell-platelet interactions to stop bleeding from trauma (see this article: Spencer Kuo, "Air Plasma for medical applications," Journal of Biomedical Science and Engineering (JBiSE), 5, 481-495, 2012 (hereinafter referred to as "Guo Article")), and kill bacteria to prevent infection (Refer to this article: Spencer P. Kuo, "Plasma Assisted Decontamination of Bacterial Spores", The Open Biomedical Engineering Journal, 2, 36-42, 2008 (hereinafter referred to as "Bens Spencer Article").

However, current plasma fluid devices operate with an AC power source (eg, 110V/60Hz or 220V/50Hz), so these devices cannot be used in emergency situations in certain situations. Based on the principle of the "151 patent" plasma torch module, a DC-operated hand-held air plasma fluid jet machine is designed. It is battery-powered and hand-held, easy to carry and operate, using only ambient air. An airborne plasma stream carrying a reactive oxygen atom and a low temperature.

The apparatus of the present invention includes a plasma flow jet and a voltage booster. The voltage booster includes a DC high intensity discharge (HID) ballast and an LC matching circuit consisting of a series of inductors and capacitors (LC). The HID ballast can use a variety of DC power sources as power inputs, such as 12V car batteries or 14-18V power tool batteries, which can provide output voltages up to 550V, start manufacturing plasma jet jets, and sustain arc discharge to create plasma flow. . Arc discharge represents the output load of the HID ballast. Because the voltage drops significantly during arc discharge, it is a dynamic load, so a matching circuit is necessary to balance the discharge voltage and current changes to maintain the function of the HID ballast.

There are two main applications for this innovative device, one for bleeding control of wounds and the other for disinfecting contaminated objects. The invention is a light, portable, hand-held operation, battery-powered device, which makes the device easy to carry to serious accidents, and can treat the wound to stop bleeding on the spot without moving the injured person.

100‧‧‧Air plasma fluid jet

101‧‧‧Manufacture of plasma jet machine

102‧‧‧Air pump

103‧‧‧Packing

104‧‧‧elastic air tube

105‧‧‧DC HID ballast

106‧‧‧Wire

107‧‧‧LC matching circuit

108‧‧‧Toggle switch

109‧‧‧DC plug

200‧‧‧ Schematic diagram of the manufacture of a plasma jet machine

201‧‧‧ center electrode

202‧‧‧External electrode

203‧‧‧ ring magnet

204‧‧‧ position fixer

205‧‧‧Cylinder tube

206‧‧‧Flexible air tube (same as(104))

207‧‧‧ nozzle

300‧‧‧Power supply

301‧‧‧DC HID ballast (same as(105))

302‧‧‧LC matching circuit (same as(107))

303‧‧‧Battery

304‧‧‧Manufacture of plasma jet machine (same as(101))

Figure 1 is a display diagram of a complete system in accordance with the present invention. The figure shows a hand-held manufacturing plasma jet machine that is connected via an elastic air tube and two wires inserted into the air tube to an air pump and a voltage booster placed in the box. The inset shows the plasma flow ejected from the activated plasma jet sprayer.

Figure 2 is a schematic illustration of one of the present invention for making a plasma jet.

Figure 3 is a block diagram of a power supply of the present invention including a battery and a voltage booster. The voltage booster includes a DC HID ballast and an LC matching circuit. The electrical connection of this power output terminal to the electrical input terminal of the fabricated plasma jet injector of Figure 2 is also shown.

The apparatus produced by the present invention is a cryogenic air plasma fluid jet (100). Referring to the schematic view of Fig. 1, a plasma jet (101) is produced which is connected by an elastic air tube (104) to an air pump (102) placed in a tank (103). The electrical terminals of this jet (101) are electrically connected to the output of the DC HID ballast (105) placed in the box (103) by two wires (106) inserted into the air tube (104). A series LC matching circuit (107) is also disposed within the box (103) and electrically coupled in parallel with the manufacturing plasma jet (101) to provide a stabilizing effect on the dynamics of the discharge. A diverter switch (108) is mounted on the bin (103) for controlling the starting of the manufacture of the plasma jet (101). A DC plug (109) is used to electrically connect the device to the battery power source.

Referring to the schematic (200) of the manufacture of a plasma jet machine shown in Figure 2, the assembly is shown to include a pair of concentric electrodes (201, 202), a ring magnet (203), and a position fixer (204). This ring magnet (203) is concentric with the two electrodes (201, 202), surrounds the center electrode (201) (a cylindrical tungsten (or copper) rod having a diameter "d") and is placed under the outer electrode (202). The magnetic field B of the permanent magnet exerts a Lorentz force on the discharge current, and the applied magnetic density F = J × B, J is the current density of the discharge. This magnetic force causes the current discharged by the electrode to rotate around the center electrode (201), so that unfavorable arc contraction can be alleviated and the erosion of the electrode against the discharge is reduced. At the same time, it stabilizes the discharge of the electrode, maintains the plasma flow in a non-equilibrium state to keep the temperature low, and increases the volume of the plasma flow.

The outer casing of the plasma jet sprayer is a cylindrical tube (205), and the position fixer (204) disposed therein tightly fixes the center electrode (201) and maintains it along the axis of the cylindrical tube (205). The structure of the position fixer (204) has a large opening that is easily passed through the air flow supplied by the air pump (102). The gas stream is delivered to the bottom end of the cylindrical tube (205) via an elastic air tube (206) and passed through the opening of the position fixer (204) to the discharge zone. A nozzle (207) is used to direct the plasma stream and cover the electrode to keep the high voltage (HV) center electrode (201) from being exposed.

In the letter (200), "a" represents the inner diameter of the outer electrode (202), "b" represents the inner diameter of the cylindrical tube (205), and "c" represents the diameter of the opening of the nozzle (207) and "h" "Represents its height, "d" represents the diameter of the center electrode (201), and "e" represents the inner diameter of the ring magnet (203). These representations are variable parameters, but e > a is necessary to avoid unfavorable premature discharge between the center electrode (201) and the ring magnet (203). At the same time c> a is preferred. The shape of the cylindrical tube (205) can be adjusted and changed.

Referring to the block diagram of the power supply (300) shown in Figure 3, it consists of a DC HID ballast (301), an LC matching circuit (302) and a battery (303). The DC HID ballast and the LC matching circuit form a voltage booster, wherein the HID ballast converts the input voltage of the battery (303) (for example, 12 to 18V) into a DC high voltage 550V output, and also includes a starting circuit. Produces a peak voltage of 2.5 to 3 kV when the output voltage of the HID ballast reaches 500-550V. This 2.5-3 kV spike voltage initiates an air ionization start followed by a continuous arc discharge driven by 500-550V. A series LC matching circuit (302) is connected in parallel with the electrical input terminals of the fabricated plasma jet (304). The dynamic arc discharge in the manufacturing plasma jet (304) represents the dynamic load of the DC HID ballast (301), and the LC matching circuit (302) balances the dynamic changes of the load to maintain the performance and stability of the HID ballast. Its high voltage output.

Annex 1 illustrates the operation of the device. In the figure, a 12V starter battery (401) is used to simulate a cigarette lighter on the vehicle, which activates the manufacture of a plasma jet (402), the jet of which is shown in the figure. The inset of Annex 1 shows that the jetted plasma stream is cold.

The unit can be installed in vehicles and ambulances and can be carried to battlefields and open environments such as camping areas and parks. The jet of air plasma stream carrying reactive oxygen atoms can be used to control wound bleeding in an emergency. Air plasma flow also disinfects the wound and aids wound healing. The manufacture of jet plasma is a hand-held operation that freely directs the flow of plasma generated in a large volume or over a large area. This "dry" disinfectant is particularly suitable for large areas of skin wounds, such as burns. Add an AC to DC adapter that can be used in your home for hemostasis.

The jetted air plasma stream can also be used, for example, for sterilization of clothing and handrails, and for cleaning contaminated instruments and filters. The distinguishing feature of this device is the use of non-thermal and dry methods for sterilization and decontamination, a process that is “green” (ie, does not use or release hazardous chemicals). Safe to operate, it will not cause damage to delicate instruments.

300‧‧‧Power supply

301‧‧‧DC HID Ballast

302‧‧‧LC matching circuit

303‧‧‧Battery

304‧‧‧Manufacture of plasma jet machine

Claims (2)

A battery operated air plasma fluid jet uses ambient air as the discharge gas, the apparatus comprising at least: a pair of concentric electrodes including a cylindrical rod shaped center electrode and an annular outer electrode axially aligned An equidistant gap enables an arc discharge that is stable at the downstream end of the two electrodes to produce a plasma flow; an annular permanent magnet that is placed near the upstream of the outer electrode, concentrically surrounding the center electrode, but does not impede the flow of air through the two electrodes a gap holder; a position holder for allowing airflow to pass through, wherein the center electrode is located at a center position along the axial direction, and is disposed upstream of the electrode but at a distance from the ring magnet to prevent the air flow opening from being Covering; a bobbin case that houses the two electrodes, the annular permanent magnet and the position fixer, and serves as a grip of the hand-held device, both ends of which allow airflow in and out, the downstream end of which fixes the external electrode and is covered by the external electrode ring a nozzle whose ring covers the outer electrode and the downstream end of the cylindrical tube, directs the plasma jet to be sprayed and is safe The center electrode is directly in contact with; an air pump that supplies air to the discharge area of the two electrodes to inject plasma generated by the arc discharge; a high-intensity discharge (HID) ballast that converts the battery The low voltage becomes the high voltage required for the arc discharge and also provides a high peak voltage to excite air ionization; an LC series matching circuit that is connected in parallel with the electrode. The apparatus of claim 1 is operated by a 12 to 18 volt DC power source.