CN214225717U

CN214225717U - Probe voltage window monitoring control device

Info

Publication number: CN214225717U
Application number: CN202023317507.XU
Authority: CN
Inventors: 张贺宁; 刘加龙; 余湘涛
Original assignee: Hebei Yian Aomei Medical Equipment Co ltd
Current assignee: Hebei Yian Aomei Medical Equipment Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-17
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a probe voltage window monitoring control device, which comprises a probe, an isolation power supply, a controllable switch, a voltage monitoring unit and an optical coupler; the probe is electrically connected with an isolation power supply through a controllable switch, and the isolation power supply is electrically connected with the host; the isolation power supply is electrically connected with the voltage monitoring unit, and the power supply monitoring unit is electrically connected with the controllable switch; the optical coupler is electrically connected with the probe and the electric connection circuit of the controllable switch; the optical coupler is also in electrical signal connection with a host. The device protects the probe from being damaged by undervoltage or overvoltage, and feeds a power supply signal back to the host machine in time so as to take further measures.

Description

Probe voltage window monitoring control device

Technical Field

The utility model belongs to the technical field of medical instrument, specifically a probe voltage window monitor control device.

Background

The probe (such as a BF probe) is used as an external function extension of a medical instrument, so that the medical instrument can be used for conveniently serving patients, and the power supply requirement of the medical instrument meets the requirements of isolation voltage and precision. The output of the isolation power supply needs to be stabilized if the voltage precision is met, and the isolation power supply needs to have a higher input voltage if the voltage is stabilized. If the voltage stabilization fails, high voltage is applied to two ends of the probe to cause damage of the probe, and the probe is generally expensive, so the probe needs to be protected from overvoltage. If the input voltage of the probe is too low, the operation of the probe is also influenced, so that the probe also needs to be subjected to undervoltage protection. If the voltage is abnormal, the equipment preferably has detection and alarm capabilities, so that the safety of the equipment is improved.

The stability of probe power supply among the prior art relies on isolation power module to decide. Without complete overvoltage and undervoltage protection, and without power state feedback, the host cannot acquire the power state.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a probe voltage window monitor control device, the device protection probe avoids the damage of undervoltage or excessive pressure, feeds back power signal in time to the host computer to take further measure.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

a probe voltage window monitoring control device comprises a probe, an isolation power supply, a controllable switch, a voltage monitoring unit and an optical coupler; the probe is electrically connected with an isolation power supply through a controllable switch, and the isolation power supply is electrically connected with the host; the isolation power supply is electrically connected with the voltage monitoring unit, and the power supply monitoring unit is electrically connected with the controllable switch; the optical coupler is electrically connected with the probe and the electric connection circuit of the controllable switch; the optical coupler is also in electrical signal connection with a host.

Preferably, the probe is a BF probe. Other types of probes may be selected by those skilled in the art as desired.

Preferably, the controllable switch is a MOS transistor or a triode. Other types of controllable switches may be selected by those skilled in the art as desired.

A monitoring control method based on the probe voltage window monitoring control device comprises the following steps:

the host supplies power to the probe through the isolated power supply and the controllable switch, and simultaneously transmits power supply voltage to the voltage monitoring unit;

the voltage monitoring unit is used for switching on the controllable switch to supply power to the probe and switching off the controllable switch outside the voltage window through judging the voltage window, the power supply to the probe is stopped, and meanwhile, a signal is fed back to the host through the optical coupler at the rear stage of the controllable switch, and the host can determine whether the voltage of the probe is normal or not according to the feedback signal of the optical coupler.

The utility model discloses an increase the voltage window, come the voltage status of test probe end, carry out on-off control to the probe power supply, within the voltage window, switch on for the probe power supply, outside the voltage window, for the disconnection of probe power supply.

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

through the protection of the voltage window of the probe and the state feedback, the probe damage caused by undervoltage or overvoltage of the power supply can be effectively avoided, and the host can find the power supply state of the probe in time so as to take the next step of measures.

Drawings

Fig. 1 is a schematic diagram of the probe voltage window monitoring control device of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1, a probe voltage window monitoring control device comprises a probe, an isolation power supply, a controllable switch, a voltage monitoring unit and an optical coupler; the probe is electrically connected with an isolation power supply through a controllable switch, and the isolation power supply is electrically connected with the host; the isolation power supply is electrically connected with the voltage monitoring unit, and the power supply monitoring unit is electrically connected with the controllable switch; the optical coupler is electrically connected with the probe and the electric connection circuit of the controllable switch; the optical coupler is also in electrical signal connection with a host.

In this embodiment, the "host" is a main device of a medical apparatus, such as a ventilator, an electrocardiograph, or the like; the DC/DC isolation is an isolation power supply module for supplying power to the BF probe by the host; the "controllable switch" is a power transistor which can be controlled, and is usually a MOS transistor or a triode; the BF probe is a BF probe; the voltage monitoring is under-voltage and over-voltage detection, and a voltage window setting module; the optical coupler is an optical coupler used for isolating signals between the host and the BF probe. The probe may be CO₂The probe, isolated power supply MIW03 and filter circuit, controllable switch AO3415 and drive circuit, voltage monitor unit MC33161DG and circuit, optocoupler TLP185 and circuit, all of which are commercially available.

In this embodiment, the host computer passes through DC/DC and keeps apart, produces the power after keeping apart, via controllable switch, gives BF probe power supply, and voltage gives voltage monitoring module simultaneously, and voltage monitoring module passes through the judgement of voltage window, controls controllable switch, and controllable switch back level feeds back the host computer through the opto-coupler, and whether the power of host computer accessible opto-coupler judgement BF probe is normal.

Conventional technical knowledge in the field can be adopted in the content which is not described in detail in the present invention.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will understand that modifications and equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of them shall fall within the scope of the claims of the present invention.

Claims

1. A probe voltage window monitoring control device is characterized by comprising a probe, an isolation power supply, a controllable switch, a voltage monitoring unit and an optical coupler; the probe is electrically connected with an isolation power supply through a controllable switch, and the isolation power supply is electrically connected with the host; the isolation power supply is electrically connected with the voltage monitoring unit, and the power supply monitoring unit is electrically connected with the controllable switch; the optical coupler is electrically connected with the probe and the electric connection circuit of the controllable switch; the optical coupler is also in electrical signal connection with a host.

2. The probe voltage window monitoring and control device of claim 1, wherein said probe is a BF probe.

3. The probe voltage window monitoring and control device of claim 1, wherein the controllable switch is a MOS transistor or a triode.