CN218247374U

CN218247374U - Anti-interference type high-frequency electrocautery therapeutic apparatus

Info

Publication number: CN218247374U
Application number: CN202222022644.3U
Authority: CN
Inventors: 方昌龙
Original assignee: Hubei Kangda Medicine Development Co ltd
Current assignee: Hubei Kangda Medicine Development Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-01-10
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses an anti-interference type high frequency fulguration therapeutic instrument provides stable operating voltage through adopting switching power supply to constitute the oscillating circuit that self-excited oscillation produced by triode, diode, electric capacity, resistance, inductance and oscillating coil, can provide the stable power supply after the filtration with the power, can get rid of because the fluctuating voltage that brings of commercial power is undulant, can not produce the clutter that does not need for self-excited oscillation again. Meanwhile, one side of the output end of the power output oscillation coil is grounded, the other output end of the power output oscillation coil is connected with the magnetic ring and the output capacitor, and the absorption effect on the common-mode signal is enhanced through the increased inductance on the magnetic ring, so that high-frequency interference signals are inhibited, induction conduction disturbance of a radio frequency field is resisted, and the high-frequency electrocautery therapeutic apparatus is ensured to normally and stably output effective power.

Description

Anti-interference type high-frequency electrocautery therapeutic apparatus

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to an anti-interference type high frequency electrical cautery therapeutic instrument.

Background

The high-frequency therapeutic instruments sold on the market at present comprise LC gap discharge oscillation high-frequency therapeutic instruments produced in the seventies of Shanghai and electronic oscillation high-frequency therapeutic instruments of electronic tubes, transistors and integrated circuit blocks produced later. The therapeutic instruments all adopt the hollow-core oscillation output coil or the oscillation output coil of the solid magnetic core, the working frequency and the output power are unstable when the therapeutic instruments work, the continuous working time is not long, the output powers of two modes (long fire and short fire) are overlapped, the mode switching is inconvenient, and the output power adjustment is discontinuous, so the working efficiency of the therapeutic instruments is extremely low, and the service life of the therapeutic instruments is shortened.

In view of the above problems, applicants have invented a high frequency therapeutic apparatus, which uses a switching power supply to provide a stable working voltage, uses an oscillation plate composed of a triode, a diode and a capacitor, and uses an oscillation circuit generated by the self-oscillation of the triode, and uses the switching power supply to provide a filtered stable power supply, so as to eliminate the voltage fluctuation caused by the mains supply fluctuation, and avoid generating unnecessary clutter for the self-oscillation, thereby solving the above technical problems.

However, when the anti-interference high-frequency electrocautery is used, the anti-interference high-frequency electrocautery cannot output effective power normally and stably due to the fact that the current and the voltage generated by the traditional high-frequency therapeutic apparatus under the induction conduction disturbance of the radio frequency field can generate the induction conduction disturbance of the radio frequency field when encountering magnetic fields of peripheral instruments and environments.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an anti-interference and stable high frequency electrical cautery instrument of output effective power to solve the poor output instability that leads to of current high frequency electrical cautery instrument interference killing feature, the short technical problem of operating time.

In order to achieve the above purpose, the utility model provides a following technical scheme: an anti-interference high-frequency electrocautery with high-stability output comprises a control panel, a switch power supply, an output electrode and an oscillating plate, wherein the switch power supply is respectively connected with the control panel and the oscillating plate to provide working voltage, and the oscillating plate is externally connected with the output electrode; the external fin of oscillator plate, just the oscillator plate includes triode, electric capacity, diode, resistance, inductance and oscillating coil, the electric capacity with the diode is parallelly connected between the collecting electrode and the projecting pole of triode, just the positive pole of diode with the collecting electrode of triode links to each other, the collecting electrode of triode with parallelly connected resistance, inductance and ground capacitor between the base of triode, the base of triode with be connected with between the projecting pole of triode the oscillating coil, output one side ground connection of oscillating coil, its another output is connected with magnetic ring and output capacitance.

On the basis of the above scheme, preferably, the oscillation coil includes a primary coil and a secondary coil, the primary coil is a multi-strand copper wire, and the secondary coil is a single-strand copper wire.

On the basis of the scheme, the outer edge surfaces of the single-stranded copper wires and the multi-stranded copper wires are preferably coated with high-temperature resistant layers.

Preferably, on the basis of the above scheme, the control board comprises a timer, a first resistor, a second resistor, a first capacitor and a second capacitor, a fifth pin of the timer is externally connected with the first resistor, a seventh pin of the timer is externally connected with the second resistor, an output end of the first resistor is connected with a seventh pin of the timer, a sixth pin of the timer is respectively connected with the second pin of the timer and an output end of the second resistor, an output end of the sixth pin of the timer is further connected with the first capacitor and the second capacitor, the first capacitor is connected with the second capacitor in parallel, and the other end of the first capacitor and the other end of the second capacitor are grounded.

On the basis of the scheme, the output capacitor is preferably a high-voltage ceramic chip capacitor of 103/6 KV.

The utility model discloses an anti-interference type high frequency electric cautery therapeutic instrument provides stable operating voltage through adopting switching power supply to constitute the oscillating circuit that self-oscillation produced by triode, diode, electric capacity, resistance, inductance and oscillating coil, can provide the stable power supply after the filtering with the power, can get rid of because the fluctuating voltage that brings of commercial power fluctuates, can not produce the clutter that does not need for self-oscillation again.

Meanwhile, one side of the output end of the oscillating coil for power output is grounded, and the other output end of the oscillating coil is connected with the magnetic ring and the output capacitor, so that the absorption effect of the common-mode signal is enhanced by increasing the inductance on the magnetic ring, a high-frequency interference signal is inhibited, the induction conduction disturbance of a radio frequency field is resisted, and the high-frequency electrocautery instrument is ensured to normally and stably output effective power.

Drawings

FIG. 1 is a block diagram of the anti-interference HF electrocautery device of the present invention;

fig. 2 is a circuit diagram of the controller of the present invention;

fig. 3 is a circuit diagram of the oscillation plate of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Please continue to refer to fig. 1, and it is shown in combination with fig. 2, the utility model discloses an anti-interference type high frequency fulguration instrument, including control panel, switching power supply, output electrode and oscillation plate, wherein, switching power supply provides stable operating voltage with control panel and oscillation plate respectively, guarantee its output frequency's stability, thereby control circuit adopts digital panel table, the control circuit that potentiometre constitutes carries out the power from 1.0 to 40.0 meticulous power control and satisfies the various treatment demands of doctor from low to high, satisfy different treatment needs, wherein the wiring diagram of controller is as shown in fig. 2.

Because triode Q1 on the oscillation plate can produce higher heat during the operation, and the heat can influence triode Q1's magnification, consequently, in order to guarantee triode Q1's operating stability, the utility model discloses an external fin of oscillation plate can go out triode Q1 production heat fast transfer on the oscillation plate through the effect of fin, avoids oscillation plate to heat up too high and influences its life.

As shown in fig. 3, the utility model discloses the oscillating plate includes triode Q1, electric capacity C1, C2, C3, diode D1, D2, resistance R1, inductance L1 and oscillating coil L2, and electric capacity C1, C2, C3 and diode D1, D2 are parallelly connected between triode Q1's collecting electrode and projecting pole, two electric capacities C1, C2, C3 are decoupling capacitance C1, C2, C3 of power, and two diodes D1, D2 are parallelly connected and go to puncture triode Q1 with the back electromotive force who prevents inductance L1, and the purpose of electric capacity C1, C2, C3 and diode D1, D2 is protection triode Q1. And the positive pole of diode D1, D2 links to each other with the collecting electrode of triode Q1, there are resistance R1, inductance L1 and grounded capacitance C3 in parallel between the collecting electrode of triode Q1 and the base of triode Q1, resistance R1 is that its size change of current-limiting resistance R1 can influence the output, be connected with oscillating coil L2 between the base of triode Q1 and the projecting pole of triode Q1, one side of the output end of oscillating coil L2 is grounded, its other output end links to each other with the controller through magnetic ring and output capacitance.

When the high-frequency electric cautery therapeutic apparatus works, the ferrite magnetic ring is additionally arranged at the output end of the oscillating coil L2 to increase the inductance, the absorption effect of common-mode signals can be effectively enhanced by combining the effect of the output capacitor, high-frequency signals generated by radio frequency field induction are absorbed and weakened, high-frequency interference signals are restrained, the resistance to radio frequency field induction conduction disturbance is realized, and the normal and stable output effective power of the high-frequency electric cautery therapeutic apparatus is ensured.

It is worth to say that the output capacitor adopts a high-voltage ceramic chip capacitor of 103/6KV, so that the leakage current of a patient can be further effectively prevented, and the safety of the patient using the high-frequency electrocautery instrument is enhanced.

The triode Q1, the inductor L1, the capacitor C4 and the transformer L2 form a self-oscillation circuit of the triode Q1. Because the secondary of the transformer is connected with the electrode output, no feedback link exists, no closed loop is formed, and therefore the oscillation is also open loop oscillation.

The utility model discloses an oscillating coil L2 includes primary coil L21 and secondary coil L22, and primary coil L21 is the stranded copper line, and secondary coil L22 is the single strand copper line to the outer fringe facial coating at single strand copper line and stranded copper line has high temperature resistant layer.

It is worth to be noted that the oscillation of the oscillating plate is also open-loop oscillation, the requirements on the process and the quality of the transformer are high, the wire of the primary coil is made of a multi-strand copper wire, the secondary coil is made of a single-strand copper wire, the copper wire is wrapped and wound by a high-temperature-resistant layer material which can resist the temperature of 150 ℃, so that the temperature of the copper wire is isolated, the inter-turn short circuit caused by the high temperature generated by continuous work is avoided, and the control circuit is subjected to fine power control from 1.0 to 40.0 by adopting a control circuit which consists of a digital panel surface, a switching power supply and a potentiometer so as to meet the power required by various treatments from low to high of doctors.

For the detailed description, please continue to refer to fig. 2 for the control circuit of the present invention, the utility model discloses a control panel includes timer, first resistance, second resistance and first electric capacity and second electric capacity, the external first resistance of fifth pin of timer, the external second resistance of seventh pin of timer, first resistance output with the seventh pin of timer links to each other, the sixth pin of timer respectively with the second pin of timer with the output of second resistance links to each other, just the sixth pin output of timer still is connected with first electric capacity and second electric capacity, first electric capacity with the second electric capacity is parallelly connected, just first electric capacity with the other end ground connection of second electric capacity.

The timer is an NE555 type timer, and when the timer is used, the timer and external elements R4, R5, C2 and C3 form a multivibrator, and the pin 2 is directly connected with the pin 6. The circuit has no steady state, only two transient steady states exist, the circuit does not need to be externally added with a trigger signal, and the 5 pins are connected with a capacitor C1 of 0.01 muf to the ground normally to play a role of filtering so as to eliminate external interference and ensure the stability of the reference level.

In operation, CC2 and C3 are charged by the power supply through R4 and R5, and C2 and C3 are discharged to the discharge end Ct through R5, causing the circuit to oscillate. The capacitors C2, C3 are charged and discharged between and, the time parameter of the output signal is T = tw1+ tw2, tw1=0.7 (R4 + R5) C, tw2=0.7R5C, C = C2+ C3; to realize the control circuit to realize the power control from 1.0 to 40.0 fine power control so as to meet the various treatment requirements of doctors from low to high.

The utility model discloses an anti-interference type high frequency electric cautery therapeutic instrument provides stable operating voltage through adopting switching power supply to the adoption is by triode Q1, diode D1, D2 and electric capacity C1, C2, C3, resistance R1, the oscillating circuit that inductance L1 and oscillating coil L2 self-excited oscillation produced, can provide the stable power supply after the filtration with switching power supply, can get rid of because the fluctuating voltage that brings of commercial power fluctuates, can not produce the clutter that does not need for the self-excited oscillation again. The oscillation of the oscillation plate is open-loop oscillation, the requirements on the process and the quality of the transformer are high, the wire of the primary coil L21 is a multi-strand copper wire, the secondary coil L22 is a single-strand copper wire, and the copper wire is wrapped by a high-temperature-resistant layer material which can resist 150 ℃ to isolate the temperature of the copper wire, so that the turn-to-turn short circuit caused by high temperature generated by continuous work is avoided.

The utility model discloses an anti-interference type high frequency electrical cautery therapeutic instrument, thereby control circuit that control circuit adopted digital panel table, switching power supply, potentiometre to constitute carries out the power from 1.0 to 40.0 meticulous power control and satisfies the various treatment demands that the doctor is from low to high.

The utility model discloses an anti-interference type high frequency electrical cautery therapeutic instrument, the oscillating plate passes through high-voltage ceramic chip electric capacity 103.6KV and the magnetic ring links to each other with output electrode. The high-voltage ceramic chip capacitor 103/6KV added on the oscillating plate can effectively protect the leakage current of a patient. The magnetic ring added on the oscillating plate can resist the induction conduction disturbance of a radio frequency field. Can protect the safety of the patient.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An anti-interference high-frequency electrocautery with high-stability output is characterized by comprising a control board, a switching power supply, an output electrode and an oscillating board, wherein the switching power supply is respectively connected with the control board and the oscillating board to provide working voltage, and the oscillating board is externally connected with the output electrode; the external fin of vibration board, just the vibration board includes triode, electric capacity, diode, resistance, inductance and oscillating coil, the electric capacity with the diode is parallelly connected between the collecting electrode and the projecting pole of triode, just the positive pole of diode with the collecting electrode of triode links to each other, the collecting electrode of triode with parallelly connected resistance, inductance and grounded capacitance between the base of triode, the base of triode with be connected with between the projecting pole of triode the oscillating coil, the output one side ground connection of oscillating coil, its another output is connected with magnetic ring and output capacitance.

2. The antijamming HF electrocautery according to claim 1 wherein the oscillator coil includes a primary coil and a secondary coil, the primary coil being a multi-strand copper wire and the secondary coil being a single strand copper wire.

3. The anti-jamming HF electrocautery according to claim 2, wherein the outer edges of the single copper wire and the multi-strand copper wire are coated with a high temperature resistant layer.

4. The anti-interference high-frequency electrocautery device as recited in claim 3, wherein the control board comprises a timer, a first resistor, a second resistor, a first capacitor and a second capacitor, a fifth pin of the timer is externally connected with the first resistor, a seventh pin of the timer is externally connected with the second resistor, an output end of the first resistor is connected with a seventh pin of the timer, a sixth pin of the timer is respectively connected with the second pin of the timer and an output end of the second resistor, the output end of the sixth pin of the timer is further connected with the first capacitor and the second capacitor, the first capacitor is connected with the second capacitor in parallel, and the other end of the first capacitor and the other end of the second capacitor are grounded.

5. The anti-jamming high-frequency electrocautery device recited in claim 4, wherein the output capacitance is a high-voltage ceramic chip capacitance of 103/6 KV.