Switchable high-frequency interference coupling network device of monitoring equipment

Abstract

The utility model relates to the field of medical detection equipment, in particular to a switchable high-frequency interference coupling network device of monitoring equipment. The device comprises a device operation panel and an interference coupling circuit, the interference coupling circuit is provided with an operation electrode, the operation electrode is connected with a resistor R1, the other end of the resistor R1 is connected with a resistor R2, the other end of the resistor R2 is connected with a neutral electrode, and a test interface and a shielding layer change-over switch are connected between the resistor R1 and the resistor R2. And the other end of the shielding layer change-over switch is connected with the shielding box. According to the utility model, through the integrated operation panel and the modularized design, the functions of rapid switching of high-frequency interference signals and compatibility of various standards are realized, and the problems of tedious operation and single function in the prior art are solved. Particularly, the shielding layer change-over switch is added, switching between connection and disconnection of the metal shielding layer can be completed only through one switch, tedious dismounting and mounting are not needed, and the flexibility and usability of the device are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of medical detection equipment, and more specifically, to a switchable high-frequency interference coupling network device for a monitoring device. Background Art

[0002] As one of the indispensable medical devices in clinical practice, a monitor is mainly used to record and analyze the physiological parameters of patients in real time, such as heart rate, blood pressure, blood oxygen saturation, etc. In the modern medical environment, especially in complex scenarios such as operating rooms, the role of the monitor is particularly important. It helps doctors timely understand the changes in the patient's vital signs and is crucial for ensuring the safety of surgeries. However, in the operating room, the use of high-frequency surgical devices (such as electrosurgical knives, high-frequency electrocoagulators, etc.) is very common. These devices generate strong high-frequency interference signals during operation, and these interference signals may affect the monitor, resulting in distorted or unstable data displayed by the monitor, thereby affecting the doctor's judgment of the patient's condition and treatment decisions.

[0003] In order to ensure that the monitor can still work accurately and reliably in the operating room environment, a high-frequency interference coupling network device is required. Existing high-frequency interference coupling network devices have problems of cumbersome operation and single function. The cumbersome operation is manifested in the need for complex assembly steps. Users must manually connect multiple wires and set multiple switches, which not only takes time but is also prone to errors. When testing different types of monitors, frequent parameter adjustment and circuit reconfiguration are a challenge for non-professionals. The unintuitive user interface also makes the operation difficult. The problem of single function is reflected in the fact that it can only simulate interference signals within a specific frequency range, lacks flexibility to adapt to different test requirements, and cannot meet the requirements of multiple industry standards at the same time. These problems limit the practicality of the device and increase the test difficulty. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a switchable high-frequency interference coupling network device for a monitoring device to solve the problems of cumbersome operation and single function existing in the prior art.

[0005] To achieve the above object, there is provided a switchable high-frequency interference coupling network device for a monitoring device, including a device operation panel and an interference coupling circuit. The interference coupling circuit is provided with a surgical electrode, the surgical electrode is connected to a resistor R1, the other end of the resistor R1 is connected to a resistor R2, the other end of the resistor R2 is connected to a neutral electrode, a test interface and a shielding layer switch are connected between the resistor R1 and the resistor R2, and the other end of the shielding layer switch is connected to a shielding box.

[0006] As a further improvement of the technical solution, the neutral electrode is connected to a capacitor C1, and the other end of the capacitor C1 is grounded.

[0007] As a further improvement of this technical solution, a resistor R31 and a resistor R32 are connected between the resistor R1 and the resistor R2. The other ends of the resistor R31 and the resistor R32 are connected to an impedance switching switch. The resistor R31 and the resistor R32 are connected in parallel with a capacitor C2. The other ends of the resistor R31, the resistor R32 and the capacitor C2 are connected to the interface RA.

[0008] As a further improvement of this technical solution, a resistor R41 and a resistor R42 are connected between the resistor R1 and the resistor R2. The other ends of the resistor R41 and the resistor R42 are connected to an impedance switching switch. The resistor R41 and the resistor R42 are connected in parallel with a capacitor C3. The other ends of the resistor R41, the resistor R42 and the capacitor C3 are connected to the interface LA.

[0009] As a further improvement of this technical solution, a resistor R51 and a resistor R52 are connected between the resistor R1 and the resistor R2. The other ends of the resistor R51 and the resistor R52 are connected to an impedance switching switch. The resistor R51 and the resistor R52 are connected in parallel with a capacitor C4. The other ends of the resistor R51, the resistor R52 and the capacitor C4 are connected to the interface LL.

[0010] As a further improvement of this technical solution, a resistor R61 and a resistor R62 are connected between the resistor R1 and the resistor R2. The other ends of the resistor R61 and the resistor R62 are connected to an impedance switching switch. The resistor R61 and the resistor R62 are connected in parallel with a capacitor C5. The other ends of the resistor R61, the resistor R62 and the capacitor C5 are connected to the interface RL.

[0011] As a further improvement of this technical solution, a device housing is provided outside the shielding box. The device operation panel is located on the front of the device housing and is used to control the various functions of the device.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the switchable high-frequency interference coupling network device of this monitoring device, by adding a shielding layer switching switch in the circuit design, users can conveniently select whether the test point is connected to the shielding layer to meet the requirements of different industry standards. This design simplifies the test process, reduces the operation steps, and improves the efficiency. At the same time, only one switch is needed to complete the switching of connecting and not connecting the metal shielding layer, without cumbersome disassembly and installation, which greatly improves the flexibility and ease of use of the device.

[0014] 2. In the switchable high-frequency interference coupling network device of this monitoring device, by setting multiple impedance switching switches and corresponding capacitors, the circuit parameters can be adjusted according to different test requirements, so as to cover the test requirements of multiple industry standards, and enhance the functionality and applicability of the device.

[0015] 3. In the switchable high-frequency interference coupling network device of the monitoring device, the test fixture uses a dedicated snap electrode connector, which can quickly and reliably complete the connection and disassembly of the lead electrodes of the device under test. Description of the Drawings

[0016] Figure 1 Schematic diagram of the external interface and switch structure of the present utility model;

[0017] Figure 2 Schematic diagram of the internal circuit principle of the present utility model. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figure 1 - Figure 2 As shown, the purpose of this embodiment is to provide a switchable high-frequency interference coupling network device for a monitoring device, including a device operation panel and an interference coupling circuit. The interference coupling circuit includes a series of components to simulate interference signals in a high-frequency surgical environment and couple them into the monitoring device to test the anti-interference ability of the monitoring device.

[0020] In the interference coupling circuit of the device, a surgical electrode is provided. This electrode is connected to a high-power non-inductive resistor of 500Ω / 200W, namely resistor R1. The other end of resistor R1 is connected to another resistor R2 (500Ω / 200W) of the same specification, and the other end of resistor R2 is connected to the neutral electrode. The circuit uses two high-power non-inductive resistors of 500Ω / 200W to connect to high-frequency surgical equipment and introduce high-frequency interference signals. A test interface and a shielding layer switching switch are connected between resistor R1 and resistor R2, and the other end of this switch is connected to the shielding box. Through this design, users can simply operate to select whether to connect the test point to the shielding layer to meet the requirements of different industry standards, thus simplifying the test process, reducing the operation steps, and improving the efficiency.

[0021] In addition, to further enhance the functionality and applicability of the device, a plurality of impedance switching switches and corresponding capacitors are provided at the test fixture interface. Between resistor R1 and resistor R2, resistors R31, R41, R51, and R61 are respectively connected, and the resistance values of these resistors are all 10 kΩ, while the resistance values of resistors R32, R42, R52, and R62 are all 51 kΩ. The other ends of these resistors are respectively connected to impedance switching switches, and a 47 nF capacitor C2, C3, C4, and C5 is also connected in parallel to each resistor group. The main function of these resistor-capacitor parallel circuits is to simulate skin contact impedance. For example, when a high-frequency interference signal passes through, capacitor C2 can block the passage of direct current but allow the passage of alternating current, while resistors R31 and R32 are used to simulate the resistance characteristics of the skin. In this way, by these impedance switching switches, the circuit parameters can be adjusted according to different test requirements, so as to cover the test requirements of a variety of industry standards.

[0022] The neutral electrode is grounded through a 47 nF capacitor C1, ensuring the stability of the circuit. An operation panel of the device is provided outside the device housing, and this panel is located on the front of the device housing and is used to control various functions of the device, making the operation more intuitive and convenient. In addition, the test fixture adopts a special snap-type electrode connector, which can quickly and reliably complete the connection and disassembly of the lead electrodes of the device under test, further improving the flexibility and ease of use of the device.

[0023] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A switchable high-frequency interference coupling network device for monitoring equipment, characterized in that: It includes a device operation panel and an interference coupling circuit, wherein the interference coupling circuit is provided with a surgical electrode, the surgical electrode is connected to a resistor R1, the other end of the resistor R1 is connected to a resistor R2, the other end of the resistor R2 is connected to a neutral electrode, a test interface and a shielding layer switching switch are connected between the resistor R1 and the resistor R2, and the other end of the shielding layer switching switch is connected to a shielding box.

2. The switchable high-frequency interference coupling network device of the monitoring equipment according to claim 1, characterized in that: The neutral electrode is connected to the capacitor C1, and the other end of the capacitor C1 is grounded.

3. The switchable high-frequency interference coupling network device of the monitoring device according to claim 1, characterized in that: Resistors R31 and R32 are connected between the resistors R1 and R2, the other ends of the resistors R31 and R32 are connected to an impedance switching switch, the resistors R31 and R32 are connected in parallel to capacitor C2, and the other ends of the resistors R31, R32 and C2 are connected to interface RA.

4. The switchable high-frequency interference coupling network device of the monitoring equipment according to claim 1, characterized in that: Resistor R41 and resistor R42 are connected between the resistor R1 and the resistor R2, the other ends of the resistor R41 and the resistor R42 are connected to an impedance switching switch, the resistor R41 and the resistor R42 are connected in parallel to a capacitor C3, and the other ends of the resistor R41, the resistor R42 and the capacitor C3 are connected to an interface LA.

5. The switchable high-frequency interference coupling network device of the monitoring equipment according to claim 1, characterized in that: Resistor R51 and resistor R52 are connected between the resistor R1 and the resistor R2, the other ends of the resistor R51 and the resistor R52 are connected to an impedance switching switch, the resistor R51 and the resistor R52 are connected in parallel to a capacitor C4, and the other ends of the resistor R51, the resistor R52 and the capacitor C4 are connected to an interface LL.

6. The switchable high-frequency interference coupling network device of the monitoring equipment according to claim 1, characterized in that: Resistor R61 and resistor R62 are connected between the resistor R1 and the resistor R2, the other ends of the resistor R61 and the resistor R62 are connected to an impedance switching switch, the resistor R61 and the resistor R62 are connected in parallel to a capacitor C5, and the other ends of the resistor R61, the resistor R62 and the capacitor C5 are connected to an interface RL.

7. The switchable high-frequency interference coupling network device of the monitoring equipment according to claim 1, characterized in that: A device shell is arranged outside the shielding box, and the device operation panel is located on the front of the device shell and is used to control various functions of the device.

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