CN213458425U

CN213458425U - Medical switching device for remotely acquiring images

Info

Publication number: CN213458425U
Application number: CN202023026136.XU
Authority: CN
Inventors: 冯定; 李浩楠; 杨成文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-06-15
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a medical switching device for remotely acquiring images, which comprises a USB-to-COM conversion module, a wireless receiving decoding module and an analog switch module, wherein the analog switch module is electrically connected with the USB-to-COM conversion module, and the wireless receiving decoding module is electrically connected with the analog switch module; the USB-to-COM conversion module comprises a first integrated circuit, a second capacitor, a third capacitor, a fourth capacitor and a crystal oscillator, wherein the model of the first integrated circuit is CH 340G. The utility model has the advantages that the combination of the USB-COM conversion module and the analog switch module can realize the function of analog foot switch; the analog switch module and the combined wireless receiving and decoding module are combined to realize the function of remote control foot switch.

Description

Medical switching device for remotely acquiring images

Technical Field

The utility model relates to the field of medical technology, specifically a switching device of image is gathered to medical remote control.

Background

The foot switch is widely applied to medical software image acquisition, and the traditional foot switch realizes image acquisition by utilizing a mechanical switch contact and has the defects of high cost, long cable, inconvenient use and the like. Moreover, the interface of the traditional foot switch is a COM port with 9 pins, and the COM port interfaces of the traditional foot switch are gradually reduced due to the fact that the existing computer is provided with the COM port interfaces, so that the application range of the traditional foot switch is reduced.

Therefore, a medical switch device for remotely acquiring images is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching device of image is gathered in medical remote control can realize simulating the foot switch function, and the combination has realized the remote control foot switch function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a medical switching device for remotely acquiring images comprises a USB-to-COM conversion module, a wireless receiving decoding module and an analog switching module, wherein the analog switching module is electrically connected with the USB-to-COM conversion module;

the USB-to-COM conversion module comprises a first integrated circuit, a second capacitor, a third capacitor, a fourth capacitor and a crystal oscillator, wherein the model of the first integrated circuit is CH340G, the first end of the first integrated circuit is grounded, the fourth end of the first integrated circuit is grounded through the second capacitor, the seventh end of the first integrated circuit is grounded through the third capacitor, the eighth end of the first integrated circuit is grounded through the fourth capacitor, the seventh end of the first integrated circuit is connected with the eighth end of the first integrated circuit through the crystal oscillator, the sixteenth end of the first integrated circuit is externally connected with a 5V direct-current voltage power supply, and the ninth end and the thirteenth end of the first integrated circuit are connected with the output end of the second integrated circuit.

Preferably, the analog switch module includes a second integrated circuit, a resistor and a switch, the model of the second integrated circuit is BL1551, a first end of the second integrated circuit is connected with a ninth end of the first integrated circuit, a third end of the second integrated circuit is connected with a thirteenth end of the first integrated circuit, a second end of the second integrated circuit is grounded, a tenth end of the first integrated circuit is connected with a fourth end of the second integrated circuit, a fifth end of the second integrated circuit is externally connected with a 5V dc voltage power supply, a fifth end of the second integrated circuit is grounded through a series circuit of the resistor and the switch, a sixth end of the second integrated circuit is electrically connected with the wireless receiving decoding module, and a sixth end of the second integrated circuit is connected with a fifth end of the second integrated circuit through the resistor.

Preferably, the wireless receiving and decoding module includes a third integrated circuit and a first capacitor, the type of the third integrated circuit is TYJM01, a first end of the third integrated circuit is grounded, a second end of the third integrated circuit is externally connected with a 5V dc voltage power supply through the first capacitor, an ANT end of the third integrated circuit is externally connected with an antenna, and a seventh end of the third integrated circuit is connected with a sixth end of the second integrated circuit.

Preferably, the capacitance values of the first capacitor and the second capacitor are both 10uF, the capacitance values of the third capacitor and the fourth capacitor are both 20uF, and the crystal oscillator is 6MHz or 12 MHz.

Preferably, the resistance of the resistor is 20k Ω.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the combination of the USB-to-COM conversion module and the analog switch module can realize the function of simulating a foot switch;

2. the analog switch module and the combined wireless receiving and decoding module are combined to realize the function of remote control foot switch.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

In the figure: u1, a first integrated circuit; u2, second integrated circuit; u3, third integrated circuit; r1, resistance; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; c4, a fourth capacitance; x1, crystal oscillator; SB1, switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1, the present invention provides a technical solution:

a medical switching device for remotely acquiring images comprises a USB-to-COM conversion module, a wireless receiving decoding module and an analog switching module, wherein the analog switching module is electrically connected with the USB-to-COM conversion module;

the USB-to-COM conversion module comprises a first integrated circuit U1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4 and a crystal oscillator X1, wherein the model of the first integrated circuit U1 is CH340G, the first end of the first integrated circuit U1 is grounded, the fourth end of the first integrated circuit U1 is grounded through a second capacitor C2, the seventh end of the first integrated circuit U1 is grounded through a third capacitor C3, the eighth end of the first integrated circuit U1 is grounded through a fourth capacitor C4, the seventh end of the first integrated circuit U1 is connected with the eighth end of the first integrated circuit U1 through a crystal oscillator X1, the sixteenth end of the first integrated circuit U1 is externally connected with a 5V direct-current voltage power supply, and the ninth end and the tenth end of the first integrated circuit U1 are connected with the output end of the second integrated circuit U2.

Specifically, the analog switch module includes a second integrated circuit U2, a resistor R1 and a switch SB1, the model of the second integrated circuit U2 is BL1551, a first end of the second integrated circuit U2 is connected to a ninth end of the first integrated circuit U1, a third end of the second integrated circuit U2 is connected to a thirteenth end of the first integrated circuit U1, a second end of the second integrated circuit U2 is grounded, a tenth end of the first integrated circuit U1 is connected to a fourth end of the second integrated circuit U2, a fifth end of the second integrated circuit U2 is externally connected to a 5V dc voltage power supply, a fifth end of the second integrated circuit U2 is grounded through a series circuit of the resistor R1 and the switch SB1, a sixth end of the second integrated circuit U2 is electrically connected to the wireless receiving decoding module, and a sixth end of the second integrated circuit U2 is connected to a fifth end of the second integrated circuit U2 through the resistor R1.

Specifically, the wireless receiving decoding module includes a third integrated circuit U3 and a first capacitor C1, the type of the third integrated circuit U3 is TYJM01, a first end of the third integrated circuit U3 is grounded, a second end of the third integrated circuit U3 is externally connected to a 5V dc power supply through the first capacitor C1, an ANT end of the third integrated circuit U3 is externally connected to an antenna, and a seventh end of the third integrated circuit U3 is connected to a sixth end of the second integrated circuit U2.

Specifically, the capacitance values of the first capacitor C1 and the second capacitor C2 are both tenth-end uF, the capacitance values of the third capacitor C3 and the fourth capacitor C4 are both 20uF, and the crystal oscillator X1 is 6MHz or 12 MHz.

Specifically, the resistance of the resistor R1 is 20k Ω.

In the device, CH340G is a USB-to-COM port integrated circuit, the D-terminal of the USB interface is connected with the sixth terminal of CH340G, the D + terminal of the USB interface is connected with the fifth terminal of CH340G, the +5V terminal of the USB interface is connected with the sixth terminal of CH340G, and the GND terminal of the USB interface is connected with the first terminal of CH 340G; seventh, a 12MHZ crystal oscillator is connected between the eighth and seventh terminals of H340G, while the GND terminal is connected to the tile capacitance of a 30P (i.e. the third and fourth capacitances C3 and C4), respectively, the tenth terminal (i.e. DSR terminal) of CH340G is connected to the common terminal (COM terminal) of analog switch BL1551, the ninth terminal (i.e. CTS terminal) of CH340G is connected to one of the first terminals (i.e. a1 terminal) of analog switch BL1551, the tenth terminal (i.e. DTR terminal) of CH340G is connected to the other second terminal (i.e. a2 terminal) of analog switch BL1551, for increasing the circuit capability, a capacitor (i.e. the first capacitance C1) is connected between the first and sixth terminals of CH340G, respectively, the capacitor may be a non-polar capacitor or a polar capacitor, if a polar capacitor is connected, the positive electrode of the capacitor is connected to the sixth terminal, the negative electrode of the capacitor is connected to the first terminal, the second capacitor (i.e. the first capacitance C33) is connected to the fourth terminal 2 of CH 340V 4, the first resistor R1 provides a static bias level for the function selection terminal (i.e., ENB terminal) of the analog switch BL1551, so that the D pole of the MOS transistor in the VT terminal of the wireless remote control receiving and decoding module TYJM01 is open and set to a high level in a static state.

At this time, the first end (i.e., end A1) of the analog switch is connected with the fourth end (i.e., end COM) to simulate the similar function of a mechanical foot switch; when the learning key (i.e. the switch SB 1) is pressed or the wireless remote control reception decoding module TYJM01 receives valid remote control information, the VT terminal outputs a low level and the ENB terminal obtains a low level. At this time, the third terminal (i.e., terminal a 2) of the analog switch is connected to the fourth terminal (i.e., terminal COM) of the analog switch, simulating the function of capturing images by the mechanical foot switch.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medical switching device for remotely acquiring images is characterized in that: the wireless communication device comprises a USB-to-COM conversion module, a wireless receiving decoding module and an analog switch module, wherein the analog switch module is electrically connected with the USB-to-COM conversion module, and the wireless receiving decoding module is electrically connected with the analog switch module;

2. The medical switch device for remotely acquiring images according to claim 1, wherein: the analog switch module comprises a second integrated circuit, a resistor and a switch, the model of the second integrated circuit is BL1551, the first end of the second integrated circuit is connected with the ninth end of the first integrated circuit, the third end of the second integrated circuit is connected with the thirteenth end of the first integrated circuit, the second end of the second integrated circuit is grounded, the tenth end of the first integrated circuit is connected with the fourth end of the second integrated circuit, the fifth end of the second integrated circuit is externally connected with a 5V direct-current voltage power supply, the fifth end of the second integrated circuit is grounded through a series circuit of the resistor and the switch, the sixth end of the second integrated circuit is electrically connected with the wireless receiving decoding module, and the sixth end of the second integrated circuit is connected with the fifth end of the second integrated circuit through the resistor.

3. The medical switch device for remotely acquiring images according to claim 2, wherein: the wireless receiving decoding module comprises a third integrated circuit and a first capacitor, the type of the third integrated circuit is TYJM01, the first end of the third integrated circuit is grounded, the second end of the third integrated circuit is externally connected with a 5V direct-current voltage power supply through the first capacitor, the ANT end of the third integrated circuit is externally connected with an antenna, and the seventh end of the third integrated circuit is connected with the sixth end of the second integrated circuit.

4. The medical switch device for remotely acquiring images according to claim 3, wherein: the capacitance values of the first capacitor and the second capacitor are both 10uF, the capacitance values of the third capacitor and the fourth capacitor are both 20uF, and the crystal oscillator is 6MHz or 12 MHz.

5. The medical switch device for remotely acquiring images according to claim 2, wherein: the resistance value of the resistor is 20k omega.