CN210873450U

CN210873450U - Infusion no-liquid alarm

Info

Publication number: CN210873450U
Application number: CN201921111290.1U
Authority: CN
Inventors: 邓力恒; 黄绍书
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-06-30
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a transfusion no-liquid alarm, which comprises a power supply, a switch, a variable capacitor, a fixed capacitor, a NOT gate control switch, a relay, a buzzer, a fixed resistor, a transfusion bottle, a transfusion tube, a plastic insulating shell and a transfusion needle head, wherein the lower surface of the transfusion bottle is embedded and connected with the transfusion tube, the outer part of the transfusion tube is sleeved with the plastic insulating shell, and one end of the transfusion tube is provided with the transfusion needle head, the alarm is clamped on the transfusion tube when a patient is transfused, alternating current is conducted, when the transfusion is completed, the alarm sends out a buzzer to prompt a doctor or the patient to change liquid or to carry out transfusion completion operation, the blood return phenomenon when the transfusion is completed is avoided, after the liquid-up alarm is added in the transfusion tube, the transfusion person or an accompanying person can do other things with great concentration without worrying about the liquid-up blood return, and the infusion can be timely known by the infusion person, and the time is saved.

Description

Infusion no-liquid alarm

Technical Field

The utility model relates to the field of medical auxiliary equipment, in particular to a transfusion liquid-free alarm.

Background

Along with the higher quality of life of people, the worse physical condition of people, the cold phenomenon can occur to many people in winter, the patient needs to visit the hospital at this moment, the simplest direct and effective method is to hang water, an infusion bottle, an infusion tube and an infusion needle head need to be used when the water is hung, but no prompting device capable of reminding the infusion patient of the liquid exhaustion exists on the market, so that a lot of troubles are brought to the infusion patient, and even life risks are caused. Accordingly, those skilled in the art have provided a no-liquid alarm for infusion to solve the above-mentioned problems in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transfusion does not have liquid alarm 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:

the utility model provides a transfusion does not have liquid alarm, includes power, switch, variable capacitance, fixed capacitance, NOT gate control switch, relay, bee calling organ, fixed resistance, infusion bottle, transfer line, plastics insulation cover and infusion syringe needle, the lower surface embedding of infusion bottle is connected with the transfer line, the plastics insulation cover has been cup jointed to the outside of transfer line, and the one end of transfer line is provided with the infusion syringe needle.

As a further aspect of the present invention: the one end and the switch of power pass through the wire and are connected, and the other end branch of power divides two wires, and a wire is connected with variable capacitance, and another wire is connected with fixed resistance, the one end branch of switch divides two wires, and a wire is connected with fixed capacitance, and another wire is connected with bee calling organ, the one end of fixed capacitance is connected with not door control switch, not door control switch's one end is connected with the relay.

As a further aspect of the present invention: the utility model discloses a plastic insulation shell, including plastic insulation shell, relay, fixed resistance, buzzer, relay, fixed resistance.

As a further aspect of the present invention: one side of the plastic insulation shell is provided with a rotatable recovery spring, one side of the rotatable recovery spring is provided with a pressing rotary pressing sheet, and the other side of the rotatable recovery spring is provided with an insulation fixing clamp.

As a further aspect of the present invention: the fixed capacitor is fixedly connected with the plastic insulating shell through adhesive, and the shape of the fixed capacitor is of an arc-shaped structure.

As a further aspect of the present invention: the outside of transfer line is provided with the magic subsides, and the magic is pasted including the son subsides of magic and the female subsides of magic.

Compared with the prior art, the beneficial effects of the utility model are that: when a patient is transfused, the alarm is clamped on a transfusion tube and alternating current is conducted, when the transfusion is finished, the alarm sends out a buzzer to prompt a doctor or the patient to change liquid or to perform transfusion finishing operation, the phenomenon of blood return when the transfusion is finished is avoided, after the transfusion tube is added with the liquid-out alarm, a transfusing person or an accompanying person can do other things with concentration, the worry about the liquid-out blood return is avoided, the transfusion person can know the completion of the transfusion in time, and the time is saved; and the originally designed alternating current is taken as a power supply and is modified into direct current, and a mechanical switch such as a rotatable restoring spring is modified into an electronic switch such as a relay, and the two designs are both designed to enable the whole structure to be more simplified.

Drawings

FIG. 1 is a schematic view of an infusion no-liquid alarm;

fig. 2 is a working circuit diagram of an infusion no-liquid alarm.

In the figure: 1. a power source; 2. a switch; 3. a variable capacitance; 4. a fixed capacitor; 5. a NOT gate control switch; 6. a relay; 7. a buzzer; 8. fixing a resistor; 9. an infusion bottle; 10. a transfusion tube; 11. a plastic insulating housing; 12. an infusion needle.

Detailed Description

Referring to fig. 1-2, in an embodiment of the present invention, an infusion liquid-free alarm includes a power supply 1, a switch 2, a variable capacitor 3, a fixed capacitor 4, a not gate control switch 5, a relay 6, a buzzer 7, a fixed resistor 8, an infusion bottle 9, an infusion tube 10, a plastic insulating housing 11 and an infusion needle 12, wherein the infusion tube 10 is embedded in the lower surface of the infusion bottle 9, the plastic insulating housing 11 is sleeved outside the infusion tube 10, and the infusion needle 12 is disposed at one end of the infusion tube 10.

One end of a power supply 1 is connected with a switch 2 through a wire, the other end of the power supply 1 is divided into two wires, one wire is connected with a variable capacitor 3, the other wire is connected with a fixed resistor 8, one end of the switch 2 is divided into two wires, one wire is connected with a fixed capacitor 4, the other wire is connected with a buzzer 7, one end of the fixed capacitor 4 is connected with a non-gate control switch 5, one end of the non-gate control switch 5 is connected with a relay 6, the fixed capacitor 4 is fixedly connected with a plastic insulating shell 11 through adhesive, the fixed capacitor 4 is in an arc-shaped structure, the buzzer 7 is arranged on the surface of one side of the plastic insulating shell 11, the relay 6 and the fixed resistor 8 are sequentially arranged on the other side of the plastic insulating shell 11, one side of the relay 6 is provided with the fixed resistor 8, and one side of the, one side of the rotatable recovery spring is installed and is pressed rotatory preforming, and the opposite side of rotatable recovery spring is provided with insulating fixation clamp, and the outside of transfer line 10 is provided with the magic subsides, and the magic is pasted including the sub-subsides of magic and the female subsides of magic.

The utility model discloses a theory of operation is: the infusion no-liquid alarm is realized as follows: a variable capacitor 3 is arranged on both sides of the infusion tube 10, and the calculation formula of the variable capacitor 3 is used

It can be seen that the dielectric constant of the variable capacitor 3 is about 78 when there is liquid in the infusion tube 10, the dielectric constant when there is no liquid in the infusion tube 10 is about 1.5, the capacitance values of the capacitors are different according to the presence or absence of liquid in the infusion tube 10, the potentials at the two ends of the gate circuit are different due to the difference of the capacitance of the variable capacitor 3, the gate circuit controls the opening or closing of the relay 6 according to the difference of the potentials at the two ends, when there is liquid in the infusion tube 10, the capacitance of the variable capacitor 3 is large, the relay is controlled to be opened by the gate circuit, and the buzzerThe circuit 7 is disconnected, the buzzer 7 does not sound, when the infusion tube 10 has no liquid, the capacitance of the variable capacitor 3 is reduced, the gate circuit control relay 6 is closed, the circuit of the buzzer 7 is connected, and the buzzer 7 gives out sound and gives an alarm.

The utility model discloses a relay 6 is tertiary switch tube, and not door control switch 5 is connected to tertiary switch tube base pole, and the collecting electrode passes through fixed resistance 8 and connects power 1, and bee calling organ 7 is connected to the projecting pole.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The infusion no-liquid alarm comprises a power supply (1) and an infusion bottle (9), and is characterized in that an infusion tube (10) is embedded and connected to the lower surface of the infusion bottle (9), a plastic insulating shell (11) is sleeved outside the infusion tube (10), and an infusion needle head (12) is arranged at one end of the infusion tube (10).

2. The infusion no-liquid alarm device according to claim 1, characterized in that one end of the power supply (1) is connected with the switch (2) through a wire, the other end of the power supply (1) is branched into two wires, one wire is connected with the variable capacitor (3), the other wire is connected with the fixed resistor (8), one end of the switch (2) is branched into two wires, one wire is connected with the fixed capacitor (4), the other wire is connected with the buzzer (7), one end of the fixed capacitor (4) is connected with the non-gate control switch (5), and one end of the non-gate control switch (5) is connected with the relay (6).

3. The transfusion no-liquid alarm device according to claim 1, wherein a buzzer (7) is arranged on one side surface of the plastic insulating shell (11), a relay (6) and a fixed resistor (8) are sequentially arranged on the other side of the plastic insulating shell (11), and the fixed resistor (8) is arranged on one side of the relay (6).

4. The alarm device of claim 1, wherein one side of the plastic insulating shell (11) is provided with a rotatable restoring spring, one side of the rotatable restoring spring is provided with a pressing rotary pressing sheet, and the other side of the rotatable restoring spring is provided with an insulating fixing clip.

5. The alarm device of claim 2, wherein the fixed capacitor (4) is fixedly connected with the plastic insulating shell (11) through adhesive, and the shape of the fixed capacitor (4) is an arc-shaped structure.

6. The infusion no-liquid alarm device as claimed in claim 1, wherein a magic tape is arranged outside the infusion tube (10), and the magic tape comprises a magic sub-tape and a magic mother tape.