CN2063819U - Multifunction medical photoelectric converter - Google Patents

Abstract

The utility model relates to a multifunction medical photoelectric converter, which is composed of a host which comprises an alarm circuit, a speak-back circuit, a display circuit and a transmitting circuit and an extension set which comprises a photoelectric detection circuit, a time base circuit and a switching relay. The multifunction medical photoelectric converter is suitable for monitoring the transfusion liquid; The utility model can realize the alarm of the transfusion liquid level, the duplex dialogue between the doctor and the patient, the sickbed call, the display of the room beds and the monitoring of the radio. The multifunction medical photoelectric converter can finish the functions by using six common leads. The utility model has the advantages of low cost and convenient installation. The transfusion alarm adopts the photoelectric conversion circuit without contacting with the medicine and without disinfection, and the multifunction medical photoelectric converter is suitable for various liquid pipes and the disposable transfusion devices which are universally used at present.

Description

Multifunction medical photoelectric converter

The invention belongs to medical monitor, applicable to the transfusion liquid monitoring, the liquid level warning of promptly infusing, the dialogue of doctors and patients' duplex, sick bed are notified from a phone call, the room berth shows and the radio monitoring.

In the world today, hospitals at different levels monitor based on electronic technology, make monitor system electronization, automatization, this is that medical science and modern science and technology interpenetrate and bonded achievement, makes ward management be tending towards system, curative activity is standard more, improves the quality and the efficient of curative activity greatly.At present, learn by computer search, domestic sick bed paging system adopts holding wire of every bed mostly, circuit is many, and inconvenience is installed, and application number 86208318 has been announced a kind of electronic information device, complete set altogether sets up three stamen plain conductors, though reduced transmission line greatly, performance is single, can only show bed label.Infusion alarm is most to adopt the repacking reservoirs or with realizing circuit alarm in two electrodes insertion medicines, application number 8511325＜arresting stop of medical dropper 〉, it has changed the structure of conventional reservoir, drip nozzle shortens conical bore into, be placed with the bead of a proportion in the conical bore less than drop, after the liquid in the reservoir all flows to end, bead drops to the lower position of conical bore along with the reduction of liquid, conical bore is blocked, the dropping liquid process is stopped automatically, this method is only limited to the reservoir after the repacking, and this infusion bottle is difficult for cleaning and disinfecting, and does not have alarm device.Application number 8720710＜venous transfusion liquid level alarm 〉, transparent glass tube as the medicinal liquid path is arranged in Photoelectric Detection, floating post is arranged in the pipe, point source is equipped with on the one side in the pipe outside, another side is equipped with light-receiving and photoelectric conversion device over against the position of point source, when the medicinal liquid in the pipe drops to certain position, light beam is by light-receiving and photoelectric conversion device receives and the generation voltage signal, by sending alarm signal behind amplifier and the relay.Above example drops to certain position though played medicinal liquid, sends alarm signal, but owing to be provided with floating post in the pipe, must have special-purpose tube for transfusion, and this tube for transfusion is difficult for washing and sterilization, also easily cause the medical cross infection chance, more be not suitable for the disposable transfusion device that generally uses at present

The objective of the invention is to overcome above-mentioned defective, make a kind of medical multifunctional optical-electrical converter, not only can reach the warning that finishes of infusing, can also demonstrate the room berth of warning immediately, but also have doctor, the dialogue of trouble duplex, functions such as sick bed call and radio monitoring.The shared six conductors of this machine can be finished above-mentioned functions, and cost is low, and is easy for installation.Transfusion is reported to the police because of adopting photoelectric switching circuit, does not contact with medicine, need not sterilize, applicable to various liquid pipes and the present disposable transfusion device that generally uses.

The medical multifunctional optical-electrical converter, it is to comprise that by main frame warning circuit, talkback circuit, display circuit, radiating circuit and extension set comprise that Photoelectric Detection, time base circuit, switching relay constitute.

Description of drawings and embodiment.

Fig. 1 is a principle of the invention block diagram.

Fig. 2 is a Photoelectric Detection bottle cover sketch map.

Fig. 3 is an extension circuit schematic.

It is to receive the luminosity difference according to light-sensitive element that transfusion is reported to the police, different and the design of circuit output potential, it is to utilize a special Transfusion bottle cover (7), bottle cover bottom two side walls has a pair of symmetrical socket (3), (4), a light-emitting component (1) and light-sensitive element (2) are equipped with respectively in portion within it, its socket (3), (4) be positioned at 1～1.5 centimetre of bottle cover Qian, socket (3), (4) jack (5) is equipped with on top respectively, (6), two leads of light-emitting component (1) and light-sensitive element (2) are respectively by jack (5), (6) with time base circuit in slotting Qian C ₂₁And C ₂₂Connect.

Extension set is to be made of Photoelectric Detection, time base circuit, switching relay, and the Photoelectric Detection that light-emitting component and light-sensitive element are formed can be carried out opto-electronic conversion, changes the comparator voltage in the input time base circuit.Time base circuit is to be made of IC and W, R, C, and its effect is that the voltage that photoelectric detector is exported is compared, triggers, and exports different current potentials then, drives relay work, relay J _1-1And J _1-2Be connected with room berth display circuit with the main frame warning circuit.Time base circuit and light-emitting component voltage are supplied with by power supply in the main frame.When in the infusion bottle medicinal liquid being arranged, liquid has refraction action to light, the light beam that light-emitting component (1) is emitted is penetrated less than on the light-sensitive element (2), this moment, circuit output end was in electronegative potential, relay (3) is not worked, when the pharmaceutical liquid in the infusion bottle drops to apart from 1～1.5 centimetre of Qian of bottle, eliminated the refraction of liquid to light beam, light-sensitive element (2) can directly receive light-emitting component (1) emitted light beams, time base circuit upset this moment, outfan output high potential makes relay J work, warning circuit and room in the main frame have been connected, the display circuit of berth finishes and reports to the police and the room of display alarm thereby reached transfusion, the effect of berth.

Fig. 4 is a warning circuit schematic diagram in the main frame.

Form warning circuit by IC, BG, R, Y, infusing finishes and reports to the police warning circuit trigger end and extension set relay J when notifying from a phone call _1-1Connect,, trigger warning circuit when extension set relay work adhesive, a first melody is exported in music integrated circuit IC work, amplifies through oscillation resistance R and amplifier BG, export to speaker Y, speaker Y will send graceful musical sound, has realized that transfusion is reported to the police and sick bed is notified from a phone call.

Fig. 5 is a talkback circuit schematic diagram in the main frame.

Talkback circuit is to adopt dual preamplifier, does the advance signal amplification and the double power amplifier integrated circuit rate of doing work and amplifies, and promotes the speaker operation in main frame and the extension set.BG2, R3, R4, R8, R9, R10, C2, C4, C6, W2 have formed the extension set preamplifier, the signal of extension set Mike input is carried out preposition amplification, input to the power amplifier of forming by IC, C10, C13, C15, C17, C19, R14, R15, R16 by the C8 coupling again, carry out power amplification, promote the speaker operation in the main frame.BG1, R1, R2, R5, R6, R7, C1, C3, C5, W1 have formed the main frame preamplifier, to in main frame, carry out preposition amplification by Mike's input signal, carry out power amplification inputing to the power amplifier of forming by IC, C9, C11, C12, C14, C16, C18, R11, R12, R13, Y by C7 coupling, promote the speaker operation in the extension set, because what talkback circuit adopted is two preposition amplifications and two power integrated circuit amplifier, it is simple to have circuit, the external element is few, noise is little, sound is clear, can realize characteristics such as duplex conversation without switch transition.

Fig. 6 is the radiating circuit schematic diagram.

Radiating circuit of the present invention is in order to solve under special circumstances, medical personnel do not design with not influencing patient's rest night near the monitoring platform, when the needs signal is launched, host switch is allocated to transmitting site, disconnected the alarm sound system this moment, and radiating circuit is started working, as the patient's calling or the warning that finishes of infusing, this alarm signal is transmitted to the midget receiver that medical personnel carry by radiating circuit, and receiver adopts small-sized FM receiver.Alarm signal, intercommunication signal and call signal are to import by CZ1, CZ2, R3, C1, R5 and R4, C2, R6 have formed preemphasis network, be in order to obtain frequency response preferably, C3, C4 are the shunt capacitances of IC, C5, C6 are frequency modulation electric capacity, the frequency of its capacity decision pilot signal, CZ1, CZ2 composite signal and subcarrier signal are superimposed by resistance R 7 and network C 7, R8, modulate by 9 pairs of ultra-high frequency generators of capacitor C, ultra-high frequency generator is made up of transistor BG1.L1, C11 constitute the hyperfrequency resonance circuit, and C8, C14 are power supply coupling capacitors, can improve the stability of complete machine work.

The transmitting range of radiating circuit is 80～100 meters, owing to adopt the frequency modulation emission, it is little to have a distortion, disturbs for a short time, and sound such as knows at characteristics.

Fig. 7 is warning, sick bed call, the room berth display circuit schematic diagram of finishing of infusing.

By double integration A/D converter IC; display lcd; integrating circuit C2, R3; automatic zero set capacitor C 1; reference capacitance C3; reverse-phase protection circuit D1, D2; clock oscillator C4, R2; simulated measurement input circuit R4, R5, reference voltage circuit R6, R7 have formed display circuit, and display circuit adopts the proportion measurement method; the conversion that realizes analog quantity one digital quantity shows; connect the resistance of different resistances between switching relay and the display circuit, the dividing potential drop that display circuit produces is also different, so demonstrate room, berth difference.When extension set relay J work adhesive, the resistance and the display circuit that are connected on the extension set relay J 1-2 have connected and composed potential-divider network, because each room is different with the extension set resistance on the sick bed, it is also different that display circuit produces dividing potential drop, so the numeral that LCD shows is also just different, has reached like this and determined that accurately transfusion is reported to the police, sick bed is notified from a phone call and the room and the berth of intercommunication.

Multifunction medical photoelectric converter of the present invention shares six conductors and just can finish the infusion-completed warning, and demonstrates immediately room, the berth of warning, but also has the dialogue of doctors and patients' duplex, and sick bed is notified from a phone call, the functions such as radio monitoring. Infusion alarming adopts photoelectric switching circuit, not with medicament contact, need not sterilize, applicable to various liquid pipes and the present disposable transfusion device that generally uses.

Claims (3)

1, medical multifunctional optical-electrical converter, be to comprise that by main frame warning circuit, talkback circuit, display circuit, radiating circuit and extension set comprise that Photoelectric Detection, time base circuit, switching relay constitute, it is characterized in that: Photoelectric Detection is by a Transfusion bottle cover [7], bottle cover bottom two side walls has a pair of symmetrical socket [3], [4], and a light-emitting component [1] and light-sensitive element [2] are equipped with respectively in portion within it.

2, according to the described medical multifunctional optical-electrical converter of claim 1, it is characterized in that: socket ［ 3 ］, ［ 4 ］ are positioned at 1～1.5 centimetre of bottle cover Qian, a jack ［ 5 ］, ［ 6 ］ are arranged respectively at socket ［ 3 ］, ［ 4 ］ top, and two leads of light-emitting component ［ 1 ］ and light-sensitive element ［ 2 ］ are respectively by the socket C in jack ［ 5 ］, ［ 6 ］ and the time base circuit ₂₁And C ₂₂Connect.

3, according to the described medical multifunctional optical-electrical converter of claim 1, it is characterized in that: the resistance of different resistances of serial connection between switching relay and the display circuit.

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