CN211240208U - Gynaecology and obstetrics uses multifunctional lamp control circuit - Google Patents
Gynaecology and obstetrics uses multifunctional lamp control circuit Download PDFInfo
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- CN211240208U CN211240208U CN201921963187.XU CN201921963187U CN211240208U CN 211240208 U CN211240208 U CN 211240208U CN 201921963187 U CN201921963187 U CN 201921963187U CN 211240208 U CN211240208 U CN 211240208U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 230000009977 dual effect Effects 0.000 claims description 22
- 238000007689 inspection Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 5
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000001225 therapeutic effect Effects 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 5
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model relates to a therapeutic equipment technical field especially relates to a gynaecology and obstetrics uses multifunctional lamp control circuit. The technical problem is as follows: the multifunctional lamp control circuit for the obstetrics and gynecology department can take emergency measures when power is cut off, and operation of medical staff on a patient is not delayed. The technical scheme is as follows: a multifunctional lamp control circuit for obstetrics and gynecology department comprises a power supply module, a charging and discharging circuit, a lithium battery, an electronic switch module, an LED driving power supply and the like; the output end of the electronic switch module is connected with the input end of the LED driving power supply, the output end of the LED driving power supply is connected with the LED operation shadowless lamp, and the power supply module supplies power to the LED driving power supply and the LED operation shadowless lamp. The utility model discloses a change over switch module can switch over the power, and the dc-to-ac converter can be changed into the alternating current with the direct current, for the power supply of LED operation shadowless lamp to can in time make emergent measure, and then do not hinder medical personnel and operate to patient.
Description
Technical Field
The utility model relates to a therapeutic equipment technical field especially relates to a gynaecology and obstetrics uses multifunctional lamp control circuit.
Background
Gynaecology and obstetrics is one of four main subjects of clinical medicine, mainly is the reason, the pathology of research women's reproductive organ disease, diagnosis and treatment, in gynaecology and obstetrics, often needs to operate to patient, for the convenience of medical personnel to operate patient, need use lamps and lanterns to provide the illumination for medical personnel.
At present, an operation shadowless lamp in an operating room is usually adopted for illumination, the operation time is generally long, continuous illumination is needed in the operation process, and if a circuit in a hospital fails or power is suddenly cut off, the operation shadowless lamp is turned off, so that medical staff cannot continue to perform an operation, and the time for the medical staff to perform the operation on a patient is delayed.
Aiming at the problems existing at present, a multifunctional lamp control circuit for obstetrics and gynecology department, which can make emergency measures when power is off and does not delay the operation of medical staff on patients, is developed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects that if a circuit in a hospital fails or power is cut off suddenly, an operation shadowless lamp is turned off, so that medical personnel cannot continue to perform an operation, and the time for the medical personnel to perform the operation on a patient is delayed, the technical problem is as follows: the multifunctional lamp control circuit for the obstetrics and gynecology department can take emergency measures when power is cut off, and does not delay the operation of medical staff on patients.
The technical scheme is as follows: the utility model provides a gynaecology and obstetrics uses multifunctional lamp control circuit, is including power module, charge-discharge circuit, lithium cell, electronic switch module, LED drive power supply, LED operation shadowless lamp, change over switch module and dc-to-ac converter, electronic switch module's output is connected with LED drive power supply's input, LED drive power supply's output and LED operation shadowless lamp are connected, power module is LED drive power supply and the power supply of LED operation shadowless lamp, charge-discharge circuit's output and lithium cell are connected, charge-discharge circuit charges and discharges for providing of lithium cell, change over switch module's output is connected with the input of dc-to-ac converter, the output of dc-to-ac converter is connected with LED drive power supply's input, the lithium cell is change over switch module and the power supply of dc.
Optionally, the LED light source device further comprises a PWM light modulator, an LED light modulation driving power supply and an LED light condensation inspection lamp, wherein the output end of the PWM light modulator is connected with the input end of the LED light modulation driving power supply, the output end of the LED light modulation driving power supply is connected with the LED light condensation inspection lamp, and the power module supplies power to the PWM light modulator, the LED light modulation driving power supply and the LED light condensation inspection lamp.
Optionally, the change-over switch module comprises a dual operational amplifier LM358, a photocoupler U2, resistors R1 to R6, diodes D1 to D3, a transistor Q1, a capacitor electrolytic EC1, and a relay RL1, wherein a Gnd pin of the dual operational amplifier LM358 is grounded, an InPuts B + pin of the dual operational amplifier LM358 is connected to a collector of the photocoupler U2, an InPuts B-pin of the dual operational amplifier LM358 is connected to a midpoint between a resistor R3 and the resistor R4 in series, one end of the resistor R3 is connected to a positive electrode + VCC of the lithium battery, the other end of the resistor R3 is connected to one end of a resistor R4, the other end of the resistor R4 is grounded, an Output B pin of the dual operational amplifier LM is connected to a base of the transistor Q1 through a resistor R5, an emitter of the transistor Q1 is grounded, a base of the transistor Q1 is grounded through a pull-down resistor R6, a cathode of the diode D3 is connected to the positive electrode + VCC of the lithium battery, the anode of the diode D3 is connected with the collector of a triode Q1, the Vcc pin of the dual operational amplifier LM358 is connected with the collector of a photocoupler U2 through a pull-up resistor R2, the pull-up resistor R2 is connected with the anode + VCC of a lithium battery, one end of the relay RL1 is connected with the anode + VCC of the lithium battery, the other end of the relay RL1 is connected with the collector of a triode Q1, the NO end of the relay RL1 is connected with the anode + VCC of the lithium battery, the COM end of the relay RL1 is connected with the input end of an inverter as the output end, the cathode of the diode D1 is connected in series through a resistor R1, the other end of the resistor R1 is connected with the anode of a capacitor electrolysis EC1, the cathode of the capacitor electrolysis EC1 is connected with the AC N end, the other end of the resistor R1 is connected with the cathode of a voltage stabilizing diode D2, the anode of the voltage stabilizing diode D2 is connected with the AC N end, and the anode of, the positive electrode of the photoelectric coupler U2 is connected with the negative electrode of the voltage stabilizing diode D2, and the negative electrode of the photoelectric coupler U2 is connected with the alternating current N end.
Optionally, the electronic switch module includes an SAM8108, resistors R7 to R8, a soft touch switch SW1, a diode D4, a transistor Q2, and a relay RL1, an ON/OFF pin of the SAM8108 is connected to one end of a soft touch switch SW1, the other end of the soft touch switch SW1 is grounded, an OUT pin of the SAM8108 is connected to a base of a transistor Q2 through a resistor R7, a VDD pin of the SAM8108 is connected to +5V, a GND pin of the SAM8108 is grounded, a base of the transistor Q2 is connected to a pull-down resistor R8, the other end of the pull-down resistor R8 is grounded, an emitter of the transistor Q2 is connected to +5V, one end of the relay RL2 is connected to a collector of the transistor Q1, the other end of the relay RL2 is grounded, an NO end of the relay RL2 is connected to an ac L end, and a COM end of the relay RL2 is connected as an output end to an input.
Optionally, the power module steps down through 220V alternating current by a 10V output transformer, the low-voltage alternating current obtained by step-down is rectified by a rectifier bridge, full-wave direct current output by rectification is filtered by a capacitor, and then stabilized by a three-terminal regulator LM7805 to output stable voltage DC 5V.
Has the advantages that
1. The power supply can be switched through the switch module, the inverter can convert direct current into alternating current to supply power to the LED operation shadowless lamp, so that emergency measures can be made in time, and the operation of medical personnel on a patient is not delayed.
2. The LED spotlight inspection lamp can be adjusted through the PWM light modulator, medical personnel can adjust the illuminance of the LED spotlight inspection lamp according to the requirement, and therefore the LED spotlight inspection lamp can be suitable for different situations.
Drawings
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Wherein: the system comprises a power module 1 …, a PWM (pulse-width modulation) dimmer 2 …, a dimming driving power supply 3 … LED, a 4 … LED spotlight inspection lamp, a 5 … charging and discharging circuit, a 6 … lithium battery, an electronic switch module 7 …, an LED driving power supply 8 …, a 9 … LED operating shadowless lamp, a switch module 10 … and an inverter 11 ….
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Example 1
A multifunctional lamp control circuit for obstetrics and gynecology department is shown in figure 1 and comprises a power supply module 1, a charging and discharging circuit 5, a lithium battery 6, an electronic switch module 7, an LED driving power supply 8, an LED operation shadowless lamp 9, a change-over switch module 10 and an inverter 11, the output end of the electronic switch module 7 is connected with the input end of an LED driving power supply 8, the output end of the LED driving power supply 8 is connected with an LED operation shadowless lamp 9, the power supply module 1 supplies power to an LED driving power supply 8 and an LED operation shadowless lamp 9, the output end of the charging and discharging circuit 5 is connected with a lithium battery 6, the charging and discharging circuit 5 provides charging and discharging for the lithium battery 6, the output end of the change-over switch module 10 is connected with the input end of the inverter 11, the output end of the inverter 11 is connected with the input end of the LED driving power supply 8, and the lithium battery 6 supplies power to the change-over switch module 10 and the inverter 11.
After the multi-functional control circuit is powered on, 8 drive LED operation shadowless lamps 9 work of LED drive power supply, LED operation shadowless lamps 9 light up, illuminate around, medical personnel can operate patient, power module 1 charges for lithium cell 6 through charging and discharging circuit 5, when having a power failure suddenly in the operation process, change over switch module 10 switching power supply, dc-to-ac converter 11 can be changed into the alternating current with the direct current, for the power supply of LED operation shadowless lamps 9, thereby can in time make emergency measures, and then do not delay medical personnel and operate patient. After the multifunctional control circuit is powered off, the LED operation shadowless lamp 9 is turned off.
Example 2
The utility model provides a gynaecology and obstetrics uses multifunctional lamp control circuit, as shown in figure 1, still including PWM dimmer 2, LED drive power supply 3 and LED spotlight inspection lamp 4 of adjusting luminance, PWM dimmer 2's output and LED adjust luminance drive power supply 3's input and be connected, LED adjusts luminance drive power supply 3's output and LED spotlight inspection lamp 4 and is connected, power module 1 adjusts luminance drive power supply 3 and LED spotlight inspection lamp 4 power supply for PWM dimmer 2, LED.
After multi-functional control circuit powered on, medical personnel accessible PWM dimmer 2 adjusted the illuminance of LED spotlight inspection lamp 4, and medical personnel can adjust the illuminance of LED spotlight inspection lamp 4 according to the demand to can be applicable to the condition of difference. After the PWM dimmer 2 is powered off, the LED spot check lamp 4 is turned off.
Example 3
A multifunctional lamp control circuit for obstetrics and gynecology department, as shown in figure 2, a switch module 10 comprises a dual operational amplifier LM358, a photoelectric coupler U2, resistors R1-R6, diodes D1-D3, a triode Q1, a capacitor electrolysis EC1 and a relay RL1, wherein the Gnd pin of the dual operational amplifier LM358 is grounded, the InPuts B + pin of the dual operational amplifier LM358 is connected with the collector of the photoelectric coupler U2, the InPuts B-pin of the dual operational amplifier LM358 is connected with the middle point of the series connection of the resistor R3 and the resistor R4, one end of the resistor R3 is connected with the positive electrode + VCC of a lithium battery 6, the other end of the resistor R3 is connected with one end of the resistor R4, the other end of the resistor R4 is grounded, the Output B pin of the dual operational amplifier LM is connected with the base of a triode Q1 through a resistor R5, the emitter of the triode Q1 is grounded, and the base of a pull-down transistor Q1 is grounded through a resistor R6, the cathode of the diode D3 is connected with the anode + VCC of the lithium battery 6, the anode of the diode D3 is connected with the collector of the triode Q1, the Vcc pin of the dual operational amplifier LM358 is connected with the collector of the photoelectric coupler U2 through a pull-up resistor R2, the pull-up resistor R2 is connected with the anode + VCC of the lithium battery 6, one end of the relay RL1 is connected with the anode + VCC of the lithium battery 6, the other end of the relay RL1 is connected with the collector of the triode Q1, the NO end of the relay RL1 is connected with the anode + VCC of the lithium battery 6, the COM end of the relay RL1 is used as the output end and is connected with the input end of the inverter 11, the cathode of the diode D1 is connected in series through a resistor R1, the other end of the resistor R1 is connected with the anode of a capacitor EC1, the cathode of the capacitor EC1 is connected with the AC N end, the other end of the resistor R1 is connected, the positive pole of the voltage stabilizing diode D2 is connected with the alternating current N end, the positive pole of the diode D1 is connected with the alternating current L end, the positive pole of the photoelectric coupler U2 is connected with the negative pole of the voltage stabilizing diode D2, and the negative pole of the photoelectric coupler U2 is connected with the alternating current N end.
The electronic switch module 7 comprises an SAM8108, resistors R7-R8, a light-touch switch SW1, a diode D4, a triode Q2 and a relay RL1, wherein an ON/OFF pin of the SAM8108 is connected with one end of the light-touch switch SW1, the other end of the light-touch switch SW1 is grounded, an OUT pin of the SAM8108 is connected with a base of a triode Q2 through a resistor R7, a VDD pin of the SAM8108 is connected with +5V, a GND pin of the SAM8108 is grounded, a base of the triode Q2 is connected with a pull-down resistor R8, the other end of the pull-down resistor R8 is grounded, an emitter of the triode Q2 is connected with +5V, one end of the relay RL2 is connected with a collector of a triode Q1, the other end of the relay RL2 is grounded, an NO end of the relay RL2 is connected with an alternating current L end, and a COM end of the relay 2.
The power module 1 is characterized in that 220V alternating current is reduced in voltage through a 10V output transformer, low-voltage alternating current obtained through reduction in voltage is rectified through a rectifier bridge, full-wave direct current output by rectification is filtered through a capacitor, and stable voltage DC5V is output after the voltage is stabilized by a three-terminal voltage stabilizer LM 7805.
After the multifunctional control circuit is powered on, medical personnel can rotate a dimming button of the PWM dimmer 2 to adjust the illumination of the LED condensation inspection lamp 4, the illumination is from 5% to 100%, the medical personnel firstly press a key SW1 of the electronic switch module 7, an OUT pin of the SAM8108 outputs a low level, the triode Q2 is switched on to supply power to the LED operation shadowless lamp 9, the LED operation shadowless lamp 9 is lightened, the medical personnel secondly press a key SW1 of the electronic switch module 7, the OUT pin of the SAM8108 outputs a high level, the triode Q2 is switched off, the LED operation shadowless lamp 9 cannot be supplied with power, the LED operation shadowless lamp 9 is turned off, the lithium battery 6 supplies power to the dual operational amplifier LM358, the inverter 11, the LED driving power supply 8 and the LED operation shadowless lamp 9, an Output pin of the dual LM operational amplifier 358 outputs a high level, the triode Q1 is switched on, the inverter 11 can convert direct current into alternating current to supply power to the LED operation shadowless lamp 9, the LED surgical shadowless lamp 9 is turned on, at this time, the Output B pin of the dual operational amplifier LM358 outputs a low level, and the triode Q2 is turned off.
The dual operational amplifier LM358 internally comprises two independent operational amplifiers with high gain and internal frequency compensation, is suitable for a single power supply with a wide power supply voltage range, is also suitable for a dual-power supply working mode, and has no relation between power supply current and power supply voltage under the recommended working condition. The application range of the device comprises a sensing amplifier, a direct current gain module and other occasions using an operational amplifier which can be powered by a single power supply.
The photocoupler U2 is an electric-to-optical-to-electric conversion device that transmits an electric signal using light as a medium. It is composed of two parts of luminous source and light receiver. The light source and the light receiver are assembled in the same closed shell and are isolated from each other by a transparent insulator. The pin of the light source is an input end, the pin of the light receiver is an output end, the common light source is a light emitting diode, and the light receiver is a photosensitive diode, a phototriode and the like.
The SAM8108 is a key trigger switch IC, one path of NMOS is output in a leakage mode, and has two trigger switch functions, namely an ON-OFF trigger mode (DUI GND triggers an ONOFF end); power-up OFF (high resistance state), pressing a key output to ON (low level), and then pressing OFF (high resistance state).
While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.
Claims (5)
1. A multifunctional lamp control circuit for obstetrics and gynecology department is characterized by comprising a power supply module (1), a charging and discharging circuit (5), a lithium battery (6), an electronic switch module (7), an LED driving power supply (8), an LED operation shadowless lamp (9), a change-over switch module (10) and an inverter (11), wherein the output end of the electronic switch module (7) is connected with the input end of the LED driving power supply (8), the output end of the LED driving power supply (8) is connected with the LED operation shadowless lamp (9), the power supply module (1) supplies power for the LED driving power supply (8) and the LED operation shadowless lamp (9), the output end of the charging and discharging circuit (5) is connected with the lithium battery (6), the charging and discharging circuit (5) provides power for the lithium battery (6), the output end of the change-over switch module (10) is connected with the input end of the inverter (11), the output end of the inverter (11) is connected with the input end of the LED driving power supply (8), and the lithium battery (6) supplies power for the change-over switch module (10) and the inverter (11).
2. The multifunctional lamp control circuit for obstetrics and gynecology department according to claim 1, characterized by further comprising a PWM dimmer (2), a LED dimming driving power supply (3) and an LED spot light inspection lamp (4), wherein the output end of the PWM dimmer (2) is connected with the input end of the LED dimming driving power supply (3), the output end of the LED dimming driving power supply (3) is connected with the LED spot light inspection lamp (4), and the power module (1) supplies power to the PWM dimmer (2), the LED dimming driving power supply (3) and the LED spot light inspection lamp (4).
3. The multifunctional lamp control circuit for obstetrics and gynecology department as claimed in claim 2, wherein the switch module (10) comprises a dual operational amplifier LM358, a photocoupler U2, resistors R1-R6, diodes D1-D3, a triode Q1, a capacitor electrolysis EC1 and a relay RL1, wherein the Gnd pin of the dual operational amplifier LM358 is grounded, the InPuts B + pin of the dual operational amplifier LM358 is connected with the collector of the photocoupler U2, the InPuts B-pin of the dual operational amplifier LM358 is connected with the middle point of the series connection of the resistor R3 and the resistor R4, one end of the resistor R3 is connected with the positive electrode + VCC of the lithium battery (6), the other end of the resistor R3 is connected with one end of the resistor R4, the other end of the resistor R4 is grounded, the Output B pin of the dual operational amplifier LM is connected with the base of the triode Q1 through the R5, and the emitter of the triode Q1 is grounded, the base electrode of the triode Q1 is grounded through a pull-down resistor R6, the cathode of the diode D3 is connected with the positive electrode + VCC of the lithium battery (6), the anode of the diode D3 is connected with the collector electrode of the triode Q1, the Vcc pin of the dual operational amplifier LM358 is connected with the collector electrode of a photoelectric coupler U2 through a pull-up resistor R2, the pull-up resistor R2 is connected with the positive electrode + VCC of the lithium battery (6), one end of the relay RL1 is connected with the positive electrode + VCC of the lithium battery (6), the other end of the relay RL1 is connected with the collector electrode of the triode Q1, the NO end of the relay RL1 is connected with the positive electrode + VCC of the lithium battery (6), the COM end of the relay RL1 is used as the output end and is connected with the input end of the inverter (11), the cathode of the diode D1 is connected in series through a resistor R1, the other end of the resistor R1 is connected with the positive electrode of the capacitor EC1, the negative, the other end of the resistor R1 is connected with the cathode of a voltage-stabilizing diode D2, the anode of the voltage-stabilizing diode D2 is connected with the N end of alternating current, the anode of the diode D1 is connected with the L end of the alternating current, the anode of the photoelectric coupler U2 is connected with the cathode of a voltage-stabilizing diode D2, and the cathode of the photoelectric coupler U2 is connected with the N end of the alternating current.
4. The multifunctional lamp control circuit for obstetrics and gynecology department as claimed in claim 3, wherein the electronic switch module (7) comprises SAM8108, resistors R7-R8, a tact switch SW1, a diode D4, a triode Q2 and a relay RL1, the ON/OFF pin of SAM8108 is connected to one end of a tact switch SW1, the other end of the tact switch SW1 is grounded, the OUT pin of the SAM8108 is connected with the base electrode of a triode Q2 through a resistor R7, the VDD pin of SAM8108 is connected to +5V, the GND pin of SAM8108 is connected to ground, the base of the triode Q2 is connected with a pull-down resistor R8, the other end of the pull-down resistor R8 is grounded, the emitter of the triode Q2 is connected with +5V, one end of the relay RL2 is connected with the collector of the triode Q1, the other end of the relay RL2 is grounded, the NO end of the relay RL2 is connected with the end L of alternating current, and the COM end of the relay RL2 is used as an output end and is connected with the input end of the LED driving power supply (8).
5. The gynecological multifunctional lamp control circuit according to claim 4, characterized in that the power module (1) is adapted to step down 220V AC power through a 10V output transformer, the low voltage AC power obtained by step down is rectified by a rectifier bridge, the full wave DC power outputted by rectification is filtered by a capacitor, and then stabilized by a three-terminal regulator LM7805 to output a stable voltage DC 5V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921963187.XU CN211240208U (en) | 2019-11-14 | 2019-11-14 | Gynaecology and obstetrics uses multifunctional lamp control circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921963187.XU CN211240208U (en) | 2019-11-14 | 2019-11-14 | Gynaecology and obstetrics uses multifunctional lamp control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684742A (en) * | 2020-12-24 | 2021-04-20 | 廖天福 | Multifunctional sickbed dining device control circuit |
| CN112842240A (en) * | 2021-01-20 | 2021-05-28 | 韦静 | Tonsil inspection lighting device control circuit |
-
2019
- 2019-11-14 CN CN201921963187.XU patent/CN211240208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684742A (en) * | 2020-12-24 | 2021-04-20 | 廖天福 | Multifunctional sickbed dining device control circuit |
| CN112842240A (en) * | 2021-01-20 | 2021-05-28 | 韦静 | Tonsil inspection lighting device control circuit |
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Effective date of registration: 20220424 Address after: 321000 No. 52 wulipailou Road, Jiangnan street, Wucheng District, Jinhua City, Zhejiang Province Patentee after: Chen Jian Address before: No. 55, Fengan village, Xiamei Town, Nan'an City, Quanzhou City, Fujian Province, 362301 Patentee before: QUANZHOU XIEYUAN ARTS & CRAFTS Co.,Ltd. |
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Granted publication date: 20200811 |