Video laryngoscope and its charging module

Abstract

The present invention relates to a visual laryngoscope and a charging module thereof. A visual laryngoscope charging module comprises a wireless discharge circuit and a wireless power receiving circuit. The wireless discharge circuit comprises an electric plug, a power adapter and a wireless transmitter connected in sequence, and the wireless power receiving circuit comprises a wireless receiver, thereby realizing wireless power transmission between the wireless discharge circuit and the wireless power receiving circuit. The wireless power receiving circuit can be connected to a power source of the visual laryngoscope. The visual laryngoscope charging module can wirelessly charge the visual laryngoscope through the wireless discharge circuit and the wireless power receiving circuit, thereby making the charging process of the visual laryngoscope more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a visual laryngoscope and a charging module thereof. Background Art

[0002] The video laryngoscope is a new visual intubation system developed in recent years, which consists of a lens, a handle and a liquid crystal window. The video laryngoscope can enter the throat and clearly display the throat structure through the display screen. It is more convenient to use and has a higher accuracy rate.

[0003] In traditional technology, video laryngoscopes are generally charged via Mini-USB (Universal Serial Bus).

[0004] The inventors discovered during the process of implementing the conventional technology that the conventional video laryngoscope charging process is not convenient enough. Summary of the invention

[0005] Based on this, it is necessary to provide a visual laryngoscope and a charging module thereof to address the problem that the charging process of the visual laryngoscope in the traditional technology is not convenient enough.

[0006] A video laryngoscope charging module comprises a wireless discharge circuit and a wireless power receiving circuit, wherein the wireless discharge circuit and the wireless power receiving circuit are wirelessly connected to perform power transmission;

[0007] The wireless discharge circuit comprises an electric plug, a power adapter and a wireless transmitter which are connected in sequence. When the electric plug is in operation, it is connected to the mains to obtain the mains power. The power adapter is used to transform and rectify the mains and transfer the power to the wireless transmitter.

[0008] The wireless power receiving circuit includes a wireless receiver, and the wireless receiver is connected to the power supply of the video laryngoscope to supply power to the power supply when the video laryngoscope charging module is working.

[0009] In one embodiment, the wireless discharge circuit further includes a diode D1 and a diode D2, and the diode D1 is powered on and emits light when the wireless transmitter forms a path with the wireless receiver, and the diode D2 is powered on and emits light when the wireless transmitter does not form a path with the wireless receiver;

[0010] The video laryngoscope charging module also includes:

[0011] The controller has a first input pin, a second input pin, and a signal output end, wherein the first input pin is connected to the anode of the diode D1 to obtain the anode voltage of the diode D1; the second input pin is connected to the anode of the diode D2 to obtain the anode voltage of the diode D2; the controller is used to obtain the working state of the video laryngoscope charging module according to the anode voltage of the diode D1 and the anode voltage of the diode D2, and output the working state through the signal output end.

[0012] In one of the embodiments, the controller further includes a third input pin;

[0013] The video laryngoscope charging module also includes a switch K1, which is connected between a power source VCC and the third input pin, so that when the switch K1 is turned on, the third input pin obtains a voltage signal of the power source VCC, and the controller outputs a fault signal.

[0014] In one embodiment, the controller further includes a first output pin; the video laryngoscope charging module further includes a fault alarm circuit;

[0015] The fault alarm circuit comprises:

[0016] A comparator, wherein a first input terminal of the comparator is connected to the first output pin, and a second input terminal of the comparator is connected to an output terminal of the comparator;

[0017] A resistor R1 is connected between the output terminal of the comparator and the ground line GND;

[0018] The diode D3 is connected in series with the resistor R1 between the output terminal of the comparator and the ground line GND.

[0019] In one of the embodiments, the controller further includes a fourth input pin;

[0020] The video laryngoscope charging module also includes a temperature detection circuit, which includes a resistor R2 and a thermistor RT connected between a power supply VCC and a ground line GND, and the fourth input pin is connected between the resistor R2 and the thermistor RT to obtain a voltage value of the thermistor RT, and obtain the temperature of the thermistor RT according to the voltage value.

[0021] In one embodiment, the wireless discharge circuit further includes a switch K2, and when the switch K2 is closed, the wireless transmitter is powered off;

[0022] The controller further includes a second output pin, and the second output pin is connected to the switch K2, so that when the temperature of the thermistor RT is greater than a preset value, the controller controls the switch K2 to close.

[0023] In one embodiment, the switch K2 comprises an electromagnetic relay;

[0024] The video laryngoscope charging module also includes a switch circuit, and the switch circuit includes:

[0025] The transistor Q1 has a collector connected to the power supply VCC through the electromagnetic relay, an emitter connected to the ground line GND, and a base connected to the second output pin through a resistor R3.

[0026] A visual laryngoscope, based on the visual laryngoscope charging module as described in any one of the above embodiments;

[0027] The visual laryngoscope comprises a charging box and a device body, wherein the charging box is used to accommodate the device body and charge the device body, the wireless discharge circuit is arranged in the charging box, and the wireless power receiving circuit is arranged in the device body.

[0028] In one embodiment, the charging box includes:

[0029] A first plane, wherein the first plane is provided with a fixing hole, so as to fix the first plane through the fixing hole;

[0030] The second plane is connected to the first plane, and the second plane forms a first angle with the first plane, and the first angle is an acute angle; the second plane is provided with a groove, and the shape of the groove matches the shape of the device body to be placed to accommodate the device body.

[0031] In one embodiment, the groove includes a first recessed portion, the first recessed portion is used to accommodate a mirror handle of the device body, wherein along a direction perpendicular to an extension direction of the first recessed portion, a width of the first recessed portion is greater than a width of the mirror handle;

[0032] The groove also includes a second recess connected to the first recess, the second recess is used to accommodate the liquid crystal visible window of the device body, wherein the wireless discharge circuit is arranged on the bottom surface of the second recess.

[0033] The above-mentioned video laryngoscope charging module includes a wireless discharge circuit and a wireless power receiving circuit. The wireless discharge circuit includes an electric plug, a power adapter and a wireless transmitter connected in sequence, and the wireless power receiving circuit includes a wireless receiver, thereby realizing wireless power transmission between the wireless discharge circuit and the wireless power receiving circuit. The wireless power receiving circuit can be connected to the power supply of the video laryngoscope. The video laryngoscope charging module can wirelessly charge the video laryngoscope through the wireless discharge circuit and the wireless power receiving circuit, thereby making the charging process of the video laryngoscope more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the circuit structure of a video laryngoscope charging module in one embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the structure of a wireless discharge circuit in one embodiment of the present application;

[0036] Figure 3 This is a partial circuit diagram of a video laryngoscope charging module in one embodiment of the present application;

[0037] Figure 4 This is a partial circuit diagram of a video laryngoscope charging module in another embodiment of the present application;

[0038] Figure 5 This is a partial circuit diagram of a video laryngoscope charging module in another embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of the structure of a wireless discharge circuit in another embodiment of the present application;

[0040] Figure 7 This is a schematic diagram of the structure of a visual laryngoscope in one embodiment of the present application;

[0041] Figure 8 This is a schematic diagram of the structure of a charging box in one embodiment of the present application.

[0042] The meanings of the figures are as follows:

[0043] 10. Video laryngoscope charging module;

[0044] 110. Wireless discharge circuit;

[0045] 112. Electric plug;

[0046] 114. Power adapter;

[0047] 116. Wireless transmitter;

[0048] 120. Wireless power receiving circuit;

[0049] 122. Wireless receiver;

[0050] 130. Controller;

[0051] 1302. Signal output terminal;

[0052] 131. First input pin;

[0053] 132. Second input pin;

[0054] 133. Third input pin;

[0055] 134. Fourth input pin;

[0056] 136. First output pin;

[0057] 137. Second output pin;

[0058] 140. Fault alarm circuit;

[0059] 142. Comparator;

[0060] 150. Temperature detection circuit;

[0061] 160. Switching circuit;

[0062] 20. Visual laryngoscope;

[0063] 210. Charging and placement box;

[0064] 2102. First plane;

[0065] 2103. Fixing hole;

[0066] 2104. Second plane;

[0067] 211. Groove;

[0068] 212. First recess;

[0069] 214. Second recess;

[0070] 216. Third recess;

[0071] 220. Device body;

[0072] 222. Mirror handle;

[0073] 224. Liquid crystal visual window;

[0074] 226. Lens;

[0075] 30. Power supply. Detailed implementation manner

[0076] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0077] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling). In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0078] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0079] This application provides a video laryngoscope and its charging module, thereby making the charging and use process of the video laryngoscope more convenient. In the embodiments of this application, the connection between two electronic devices or / and circuits refers to an electrical connection, and here the electrical connection means that two electronic devices or / and circuits are connected by wires or wirelessly to achieve the transmission of electrical signals. The connection between two mechanical devices refers to a physical connection, and here the physical connection can be a movable connection or a fixed connection, or can also be integrally formed.

[0080] Please refer to Figure 1As shown, in one embodiment, the present application provides a video laryngoscope charging module 10. The video laryngoscope charging module 10 includes a wireless discharge circuit 110 and a wireless power receiving circuit 120, and the wireless discharge circuit 110 and the wireless power receiving circuit 120 are wirelessly connected, so that the wireless discharge circuit 110 can transmit power to the wireless power receiving circuit 120.

[0081] Specifically, the wireless discharge circuit 110 may include an electric plug 112, a power adapter 114, and a wireless transmitter 116 connected in sequence. The electric plug 112 can be connected to the mains to obtain 220V AC power from the mains, and transmit the 220V AC power to the power adapter 114. The power adapter 114 generally has a transformer circuit and a rectifier circuit. The transformer circuit is used to obtain 220V AC power and convert the 220V AC power into low-voltage AC power. The rectifier circuit is used to obtain the low-voltage AC power output by the transformer circuit and convert the low-voltage AC power into DC power. Figure 1 In the illustrated embodiment, the power adapter 114 can convert 220V AC power into 12V DC power and output it to the wireless transmitter 116. After the wireless transmitter 116 obtains the 12V DC power, it can convert the electrical signal into a radio wave and transmit it.

[0082] The wireless power receiving circuit 120 includes a wireless receiver 122. The wireless receiver 122 is used to obtain the radio waves output by the wireless transmitter 116 and convert the radio waves into direct current signals. In this embodiment, the wireless receiver 122 can be connected to the power supply 30 of the video laryngoscope 20. In this way, when the wireless transmitter 116 transmits radio waves to the wireless receiver 122, the power supply 30 of the video laryngoscope 20 can be charged.

[0083] The above-mentioned video laryngoscope charging module 10 includes a wireless discharge circuit 110 and a wireless power receiving circuit 120. Through the wireless discharge circuit 110 and the wireless power receiving circuit 120, the video laryngoscope 20 can be wirelessly charged using the radio wave wireless charging principle, thereby making the charging process of the video laryngoscope 20 more convenient.

[0084] Generally, the wireless discharge circuit 110 may further include a diode D1 and a diode D2. Both the diode D1 and the diode D2 are light emitting diodes. When the wireless transmitter 116 forms a path with the wireless receiver 122, the diode D1 emits light. Conversely, when the wireless transmitter 116 and the wireless receiver 122 do not form a path, the light emitting diode D2 emits light. In each embodiment of the present application, the wireless transmitter 116 and the wireless receiver 122 form a path, which means that the wireless transmitter 116 can transmit radio waves to the wireless receiver 122. For example, Figure 2In the illustrated embodiment, the diode D1 can be connected in series in the working loop of the wireless discharge circuit 110, and the diode D2 can directly form a loop with the power adapter 114. The diode D1 and the diode D2 are connected to the power adapter 114 via a single-pole double-throw switch.

[0085] The conduction direction of the single-pole double-throw switch here can be manual. For example, when the user needs to charge the video laryngoscope 20, the single-pole double-throw switch is manually switched to make the working circuit where the diode D1 is located conduction. At this time, the wireless transmitter 116 can transmit radio waves to the wireless receiver 122, thereby charging the power supply 30 of the video laryngoscope 20. When the user stops charging, the single-pole double-throw switch is manually switched to make the circuit where the diode D2 is located conduction. At this time, no current flows through the wireless transmitter 116. The conduction direction of the single-pole double-throw switch can also be automatic. For example, a detection device can be provided in the power adapter 114, so that when the wireless receiver 122 is close to the wireless transmitter 116, the single-pole double-throw switch automatically switches to make the working circuit of the wireless transmitter 116 where the diode D1 is located conduction; conversely, when the distance between the wireless receiver 122 and the wireless transmitter 116 exceeds a certain range, the single-pole double-throw switch automatically switches to make the circuit where the diode D2 is located conduction. At this time, no current flows through the wireless transmitter 116.

[0086] It should be understood that the above embodiment is only one implementation of the present application. The present application can also be implemented in other ways, so that when the wireless transmitter 116 transmits radio waves to the wireless receiver 122, only the diode D1 is turned on, and when the wireless transmitter 116 does not form a path with the wireless receiver 122, only the diode D2 is turned on.

[0087] Further, such as Figure 3 As shown, the video laryngoscope charging module 10 of the present application may further include a controller 130 .

[0088] Specifically, in this embodiment, the controller 130 is used to obtain the working state of the video laryngoscope charging module 10 and output the working state. Here, the working state of the video laryngoscope charging module 10 refers to the working state of whether a path is formed between the wireless transmitter 116 and the wireless receiver 122, that is, whether the video laryngoscope charging module 10 is charging the power supply 30.

[0089] As known from the above description, the wireless discharge circuit 110 includes a diode D1 and a diode D2, and the diode D1 emits light when the wireless transmitter 116 and the wireless receiver 122 form a path, and the diode D2 emits light when the wireless transmitter 116 and the wireless receiver 122 do not form a path. Since the anode of the diode generally has a stable forward voltage when it emits light, the controller 130 detects whether the video laryngoscope charging module 10 is charging the power supply 30 by detecting the anode voltage of the diode D1 and the diode D2. In this embodiment, the cathodes of the diode D1 and the diode D2 can be connected to the ground wire GND.

[0090] Among them, the controller 130 may have a first input pin 131, a second input pin 132 and a signal output terminal. The first input pin 131 can be connected to the anode of the diode D1 to obtain the anode voltage of the diode D1. The second input pin 132 can be connected to the anode of the diode D2 to obtain the anode voltage of the diode D2. In this way, the controller 130 can obtain whether the visual laryngoscope charging module 10 is charging the power supply 30. After the controller 130 obtains the working status of the visual laryngoscope charging module 10, it can output the working status to the remote computer through the signal output terminal 1302. The visual laryngoscope charging module 10 can remotely monitor the working status of the visual laryngoscope charging module 10 by detecting the anode voltages of the diode D1 and the diode D2 through the controller 130, thereby improving the ease of use of the visual laryngoscope 20.

[0091] In one embodiment, Figure 4 As shown, the controller 130 of the video laryngoscope charging module 10 of the present application may further include a third input pin 133 .

[0092] Specifically, the video laryngoscope charging module 10 includes a switch K1, and the switch K1 is connected between the power supply VCC and the third input pin 133. In this way, when the switch K1 is turned on, the voltage signal of the power supply VCC can be transmitted to the third input pin 133. The switch K1 here can be a manual switch. In this way, when the user finds that the video laryngoscope charging module 10 or the video laryngoscope 20 using the video laryngoscope charging module 10 has a fault, the switch K1 can be manually closed. At this time, after the third input pin 133 of the controller 130 obtains the electrical signal of the power supply VCC, the fault signal can be output through the signal output.

[0093] Furthermore, the video laryngoscope charging module 10 may also include a fault alarm circuit, and the controller 130 may also include a first output pin 136 .

[0094] Specifically, the first output pin 136 is used to output an analog signal.

[0095] The fault alarm circuit 140 may include a comparator 142, a resistor R1, and a diode D3. The comparator 142 has a first input terminal, a second input terminal, and an output terminal. At this time, the first input terminal of the comparator 142 may be connected to the first output pin 136, and the second terminal of the comparator 142 may be connected to the output terminal of the comparator 142.

[0096] The resistor R1 may be connected between the output terminal of the comparator 142 and the ground line GND. In other words, one end of the resistor R1 is connected to the output terminal of the comparator 142, and the other end of the resistor R1 is connected to the ground line GND.

[0097] The diode D3 may be a light emitting diode. The diode D3 may be connected in series with the resistor R1 between the output terminal of the comparator 142 and the ground line GND. In other words, the anode of the diode D3 may be connected to the resistor R1, and the cathode of the diode D3 may be connected to the ground line GND.

[0098] In this embodiment, when the switch K1 is closed, the third input pin 133 of the controller 130 obtains the electrical signal of the power supply VCC, and the first output end of the controller 130 can output an analog signal. At this time, a path is formed between the output end of the comparator 142 and the ground wire GND, and the diode D3 is powered on and emits light. The fault alarm circuit 140 can make the light-emitting diode D3 continuously powered on and emit light after the user manually presses the switch K1, so as to remind the user that the visual laryngoscope charging module 10 or the visual laryngoscope 20 using the visual laryngoscope charging module 10 has failed, so as to avoid the user forgetting.

[0099] In one embodiment, Figure 5 As shown, the video laryngoscope charging module 10 of the present application further includes a temperature detection circuit 150 . Corresponding to the temperature detection circuit 150 , the controller 130 further includes a fourth input pin 134 .

[0100] Specifically, the fourth input pin 134 of the controller 130 can be used to obtain an analog signal.

[0101] The temperature detection circuit 150 may include a resistor R2 and a thermistor RT connected in sequence between a power source VCC and a ground line GND. The thermistor RT here may be a negative temperature resistor, that is, when the temperature of the thermistor RT increases, the resistance decreases. The fourth input pin 134 is connected between the resistor R2 and the thermistor RT, so as to obtain the voltage value of the thermistor RT, and obtain the temperature of the thermistor according to the voltage value of the thermistor RT.

[0102] More specifically, the temperature detection circuit 150 includes a resistor R2 and a thermistor RT connected in sequence between a power supply VCC and a ground line GND. The voltage of the power supply VCC can be 5V; the resistance value of the resistor R2 can be 4.7KΩ; the resistance value of the thermistor RT can be 5KΩ, and it decreases as its temperature increases. In this way, in the process of increasing the temperature of the thermistor RT, the resistance value of the thermistor RT will gradually decrease, and its voltage value will also gradually decrease. At this time, the value of the analog signal obtained by the fourth input pin 134 of the controller 130, that is, the voltage value of the thermistor RT, will also decrease. The controller 130 can be preset with a corresponding relationship between the voltage value and temperature of the thermistor RT, so that the temperature of the thermistor RT can be obtained according to the voltage value of the thermistor RT. After the controller 130 obtains the temperature of the thermistor RT, it can output the temperature through the signal output terminal 1302, thereby realizing temperature monitoring of the visual laryngoscope charging module 10.

[0103] It should be understood that in the above embodiment, the thermistor RT is a negative temperature resistor. In other embodiments, the thermistor RT may also be a positive temperature resistor, that is, when the temperature of the thermistor RT increases, the resistance of the thermistor RT also increases.

[0104] Furthermore, based on the above-mentioned temperature detection circuit 150, the video laryngoscope charging module 10 of the present application may also have a switch K2 for over-temperature protection.

[0105] Specifically, Figure 6 As shown, the switch K2 can be connected to the wireless discharge circuit 110, so that when the switch K2 is disconnected, the wireless transmitter 116 can be turned on and send radio waves to the wireless receiver 122; conversely, when the switch K2 is closed, the wireless transmitter 116 is short-circuited and cannot send radio waves.

[0106] The controller 130 has a second output pin 137, and the second output pin 137 can output an analog signal. The second output pin 137 can be connected to the switch K2 to control the closing of the switch K2. At this time, a preset value can be preset in the controller 130. When the controller 130 obtains the temperature of the thermistor RT according to the voltage value of the thermistor RT, the temperature of the thermistor RT can be compared with the preset value. If the temperature of the thermistor RT is greater than the preset value, the controller 130 controls the switch K2 to close.

[0107] Furthermore, in order to make the controller 130 control the switch K2 more stable, the controller 130 may control the switch K2 via the switch circuit 160 connected thereto. In this embodiment, the switch K2 may be an electromagnetic relay switch.

[0108] Specifically, Figure 5As shown, the switch K2 is an electromagnetic relay switch. The controller 130 controls the switch K2 through the switch circuit 160 .

[0109] Among them, the switch circuit 160 includes a transistor Q1. The collector of the transistor Q1 is connected to the power supply VCC through an electromagnetic relay, so that when current flows from the power supply VCC to the collector of the transistor Q1, the electromagnetic relay is closed; otherwise, the electromagnetic relay is opened. The emitter of the transistor Q1 is connected to the ground wire GND, and the base of the transistor Q1 is connected to the second output pin 137 through a resistor R3. In this embodiment, the transistor Q1 can be an NPN transistor that is turned on at a high level. In this way, when the controller 130 obtains that the temperature of the thermistor RT is greater than a preset value based on the voltage value of the thermistor RT, a high level signal can be output from the second output pin 137. At this time, the transistor Q1 is turned on, the electromagnetic relay is closed, and the switch K2 is closed.

[0110] In one embodiment, the switch circuit 160 further includes a diode D4 , an anode of the diode D4 is connected to the collector of the transistor Q1 , and a cathode of the diode D4 is connected to the power source VCC.

[0111] In a specific embodiment, the controller 130 used in the above-mentioned video laryngoscope charging module 10 can be a single-chip microcomputer of model ATMEG328, which can be powered by a USB (universal serial bus) data line. At this time, the first input pin 131 of the controller 130 can be pin 23 of the ATMEG328 single-chip microcomputer, and the second input pin 132 can be pin 24 of the ATMEG328 single-chip microcomputer. The third input pin 133 can be pin 5 of the ATMEG328 single-chip microcomputer. The fourth input pin 134 can be pin 25 of the ATMEG328 single-chip microcomputer. The first output pin 136 can be pin 19 of the ATMEG328 single-chip microcomputer. The second output pin 137 can be pin 14 of the ATMEG328 single-chip microcomputer. The signal output terminal 1302 can be the CH340 serial port of the ATMEG328 single-chip microcomputer.

[0112] See also Figure 7 As shown, the present application also provides a visual laryngoscope 20, which is based on the visual laryngoscope charging module 10 in any one of the above embodiments. The visual laryngoscope 20 includes a charging placement box 210 and a device body 220.

[0113] Specifically, the charging and placing box 210 is used to accommodate the device body 220 and charge the device body 220. The wireless discharge circuit 110 in the video laryngoscope charging module 10 of the above embodiment is arranged in the charging and placing box 210. Correspondingly, the controller 130, the switch K1, the fault alarm circuit 140, the temperature detection circuit 150 and the switch circuit 160 connected to the wireless discharge circuit 110 are also arranged in the charging and placing box 210.

[0114] A power source 30 is disposed in the device body 220 , and accordingly, a wireless power receiving circuit 120 is disposed in the device body 220 to supply power to the power source 30 .

[0115] The above-mentioned video laryngoscope 20 includes a charging and placing box 210 and a device body 220. The device body 220 can be accommodated in the charging and placing box 210. At the same time, the above-mentioned wireless discharge circuit 110 is provided in the charging and placing box 210, and the above-mentioned wireless power receiving circuit 120 is provided in the device body 220, thereby improving the storage convenience and charging convenience of the video laryngoscope 20.

[0116] Furthermore, the charging box 210 can be made of high-density pearl cotton.

[0117] In one embodiment, Figure 7 and Figure 8 As shown, the charging box 210 may include a first plane 2102 and a second plane 2104 connected to each other.

[0118] Specifically, the first plane 2102 is provided with a fixing hole 2103, so that the charging placement box 210 is fixed to a wall or an anesthesia machine through the fixing hole 2103. The first plane 2102 may also be provided with a wire hole for the wire to pass through, which will not be described in detail.

[0119] The second plane 2104 is used to accommodate the device body 220. The second plane 2104 is connected to the first plane 2102 and has a certain angle with the first plane 2102. For ease of description, we name the angle between the second plane 2104 and the first plane 2102 as the first angle. Generally speaking, the first plane 2102 can be fixed to a wall or a wall of an anesthesia machine, and it is perpendicular to the horizontal plane after being fixed. Therefore, in order to facilitate the user to pick up the device body 220 from the second plane 2104, the second plane 2104 may have a first angle relative to the first plane 2102. The first angle may be an acute angle, so that after the first plane 2102 is fixed to the vertical plane, the second plane 2104 has a certain inclination relative to the horizontal plane, so that the user can pick up the device body 220 from the second plane 2104.

[0120] Generally speaking, if Figure 7As shown, the device body 220 includes a handle 222, a lens 226 and a liquid crystal window 224. The handle 222 is used for holding, and the lens 226 is used to extend into the throat of the human body to collect images and transmit them to the liquid crystal window 224. The liquid crystal window 224 is used to display the throat image collected by the lens 226. In this embodiment, corresponding to the device body 220, a groove 211 for accommodating the device body 220 may be provided on the second plane 2104 of the charging placement box 210. The groove 211 includes a first recess 212, a second recess 214 and a third recess 216. The first recess 212 corresponds to the handle 222 and is used to accommodate the handle 222. The second recess 214 corresponds to the liquid crystal window 224 and is used to accommodate the liquid crystal window 224. The third recess 216 is used to accommodate the lens 226. In this embodiment, the third recess 216 may penetrate the second plane 2104 , so that the lens 226 passes through the third recess 216 and enters between the second plane 2104 and the first plane 2102 .

[0121] Furthermore, in the device body 220, the power supply of the device body 220 can be arranged on the back of the liquid crystal window 224. Therefore, in this embodiment, if Figure 7 and Figure 8 As shown, the wireless discharge circuit 110 can be arranged on the bottom surface of the second recess 214. The bottom surface of the second recess 214 refers to the surface of the second recess 214 exposed to the air. The wireless power receiving circuit 120 can be arranged on the back of the liquid crystal visible window 224, so that when the device body 220 is accommodated in the charging placement box 210, the wireless discharge circuit 110 transmits radio wave signals to the wireless power receiving circuit 120.

[0122] Furthermore, along the vertical extension direction of the first recess 212, the width of the first recess 212 is greater than the width of the mirror handle 222. The extension direction of the first recess 212 refers to the direction from the third recess 216 to the second recess 214. In other words, in this embodiment, the width of the first recess 212 is greater than the diameter of the mirror handle 222, so that the user can hold the mirror handle 222 from the groove 211 and take out the device body 220.

[0123] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A video laryngoscope charging module, It is characterized in that It comprises a wireless discharging circuit (110) and a wireless power receiving circuit (120), wherein the wireless discharging circuit (110) and the wireless power receiving circuit (120) are wirelessly connected to perform power transmission; The wireless discharge circuit (110) comprises an electric plug (112), a power adapter (114) and a wireless transmitter (116) which are connected in sequence; the electric plug (112) is connected to the mains during operation to obtain the mains power; the power adapter (114) is used to transform and rectify the mains power and transmit the power to the wireless transmitter (116); The wireless power receiving circuit (120) comprises a wireless receiver (122), and the wireless receiver (122) is used to connect to a power source (30) of the video laryngoscope (20) so as to supply power to the power source (30) when the video laryngoscope charging module (10) is working; The wireless discharge circuit (110) further comprises a diode D1 and a diode D2, and the diode D1 is powered on and emits light when the wireless transmitter (116) forms a path with the wireless receiver (122), and the diode D2 is powered on and emits light when the wireless transmitter (116) does not form a path with the wireless receiver (122); The diode D1 is connected in series in the working loop of the wireless discharge circuit 110, the diode D2 forms a loop with the power adapter (114), and the diode D1 and the diode D2 are connected to the power adapter (114) via a single-pole double-throw switch.

2. The video laryngoscope charging module according to claim 1, It is characterized in that The video laryngoscope charging module (10) further comprises: The controller (130) comprises a first input pin (131), a second input pin (132), and a signal output terminal (1302), wherein the first input pin (131) is connected to the anode of the diode D1 to obtain the anode voltage of the diode D1; the second input pin (132) is connected to the anode of the diode D2 to obtain the anode voltage of the diode D2; the controller (130) is used to obtain the working state of the video laryngoscope charging module (10) according to the anode voltage of the diode D1 and the anode voltage of the diode D2, and output the working state through the signal output terminal (1302).

3. The video laryngoscope charging module according to claim 2, It is characterized in that The controller (130) further includes a third input pin (133); The video laryngoscope charging module (10) further comprises a switch K1, wherein the switch K1 is connected between a power source VCC and the third input pin (133), so that when the switch K1 is turned on, the third input pin (133) obtains a voltage signal of the power source VCC, and the controller (130) outputs a fault signal.

4. The video laryngoscope charging module according to claim 3, It is characterized in that The controller (130) further comprises a first output pin (136); the visual laryngoscope charging module (10) further comprises a fault alarm circuit (140); The fault alarm circuit (140) comprises: A comparator (142), wherein a first input terminal of the comparator (142) is connected to the first output pin (136), and a second input terminal of the comparator is connected to an output terminal of the comparator; A resistor R1 is connected between the output terminal of the comparator and the ground line GND; The diode D3 is connected in series with the resistor R1 between the output terminal of the comparator and the ground line GND.

5. The video laryngoscope charging module according to claim 2, It is characterized in that The controller (130) further includes a fourth input pin (134); The video laryngoscope charging module (10) further comprises a temperature detection circuit (150), wherein the temperature detection circuit (150) comprises a resistor R2 and a thermistor RT connected between a power source VCC and a ground line GND, and the fourth input pin (134) is connected between the resistor R2 and the thermistor RT to obtain a voltage value of the thermistor RT, and obtain a temperature of the thermistor RT according to the voltage value.

6. The video laryngoscope charging module according to claim 5, It is characterized in that The wireless discharge circuit (110) further comprises a switch K2, and when the switch K2 is closed, the wireless transmitter (116) is powered off; The controller (130) further comprises a second output pin (137), wherein the second output pin (137) is connected to the switch K2, so that when the temperature of the thermistor RT is greater than a preset value, the controller (130) controls the switch K2 to close.

7. The video laryngoscope charging module according to claim 6, It is characterized in that The switch K2 comprises an electromagnetic relay; The video laryngoscope charging module (10) further comprises a switch circuit (160), wherein the switch circuit (160) comprises: A transistor Q1, wherein the collector of the transistor Q1 is connected to the power supply VCC through the electromagnetic relay, the emitter of the transistor Q1 is connected to the ground line GND, and the base of the transistor Q1 is connected to the second output pin (137) through a resistor R3.

8. A video laryngoscope, It is characterized in that A video laryngoscope charging module (10) according to any one of claims 1 to 7; The visual laryngoscope (20) comprises a charging and placement box (210) and a device body (220); the charging and placement box (210) is used to accommodate the device body (220) and charge the device body (220); the wireless discharge circuit (110) is arranged in the charging and placement box (210); and the wireless power receiving circuit (120) is arranged in the device body (220).

9. The video laryngoscope according to claim 8, It is characterized in that The charging placement box (210) comprises: A first plane (2102), wherein the first plane (2102) is provided with a fixing hole (2103) so as to fix the first plane (2102) through the fixing hole (2103); The second plane (2104) is connected to the first plane (2102), and the second plane (2104) and the first plane (2102) form a first angle, and the first angle is an acute angle; the second plane (2104) is provided with a groove (211), and the shape of the groove (211) matches the shape of the device body (220) to be placed, so as to accommodate the device body (220).

10. The video laryngoscope according to claim 9, It is characterized in that The groove (211) comprises a first recessed portion (212), the first recessed portion (212) being used to accommodate a mirror handle (222) of the device body (220), wherein, in a direction perpendicular to an extension direction of the first recessed portion (212), a width of the first recessed portion (212) is greater than a width of the mirror handle (222); The groove (211) further comprises a second recess (214) connected to the first recess (212), the second recess (214) being used to accommodate a liquid crystal visible window (224) of the device body (220), wherein the wireless discharge circuit (110) is arranged on the bottom surface of the second recess (214).

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