CN103316396B - Infusion bottle infusion reminder - Google Patents

Abstract

The infusion bottle reminder, designed to be hung on an infusion bottle, consists of a retaining ring and a body, which is equipped with an air inlet and a nozzle. The reminder is connected to the infusion bottle via a return air line. A control unit analyzes the pressure signal from the pressure sensor and determines whether to activate an alarm. This alarm activates when the infusion bottle has run out of liquid or when the infusion rate has slowed due to a blockage.

Description

Infusion bottle infusion reminder

technical field

The invention relates to an infusion reminder which can automatically send out a reminder after the liquid medicine in the infusion bottle has run out, and belongs to the optimization technology of infusion.

Background technique

In the existing infusion bottle, during the infusion process, it is necessary to insert an air intake pipe on the infusion bottle. When the liquid medicine in the bottle decreases to form a negative pressure, the air from the outside is sucked in through the air intake pipe to replenish air, so that the air pressure inside and outside the bottle remains balanced. , the medicinal liquid can enter the drip pot smoothly through the introductory needle. One end of the air inlet pipe is suspended and exposed outside the bottle, and the other end is provided with an air inlet needle, which is pierced into the mouth of the bottle. During the infusion process, as the height of the liquid medicine in the bottle decreases, when the sum of the pressure generated by the liquid medicine and the pressure generated by the gas in the bottle is less than the external atmospheric pressure, the external gas will enter the bottle through the air inlet pipe under the action of the atmospheric pressure, making the The sum of the pressure generated by the medicinal liquid and the pressure generated by the gas in the bottle always remains substantially equal to the atmospheric pressure, so that the medicinal liquid can be dripped into the body at a uniform speed.

During the infusion process, patients or their family members must always pay attention to the progress of the infusion. When the liquid in the infusion bottle and the dripping pot run out, and the liquid level drops below the dripping pot, blood return may occur. , That is, blood enters the drip tube, or air enters the blood, causing air embolism, which makes the patient panic or even bring danger.

Because the infusion time is longer, generally more than half an hour, the patient or family members are required to pay attention to the progress of the infusion at any time, so that the patient cannot rest at ease, and the family members cannot go away if they have something to do. Especially for those patients and their families who need to infuse multiple bottles of medicinal liquid every day and their families, it is a laborious task to keep an eye on the progress of the infusion. It is also unrealistic for nurses or nurses to keep an eye on the progress of the infusion. Usually, one nurse or nurse has to take care of multiple patients in multiple wards at the same time.

In addition, in the process of infusion, sometimes the patient accidentally presses the dropper, so that the liquid medicine cannot enter the body smoothly, or the blood vessel is blocked, so that the liquid medicine cannot be input smoothly. adverse effects on patients.

Therefore, need to look for a kind of infusion device that does not need special person to take care of, can send alarm automatically when infusion is about to finish or transfusion occurs abnormal situation.

Contents of the invention

The object of the present invention is to provide an infusion device that can automatically send out an alarm when the infusion is about to be completed without special attention.

The technical scheme of the present invention is: an infusion bottle infusion reminder 1, which is hung on the infusion bottle 2 for use, mainly includes a clasp 11 and a fuselage 12; There is an airway, one end of the airway communicates with the mouthpiece 13, and the other end communicates with the air inlet; a pressure one-way valve is arranged in the airway, and an opening is arranged on the airway between the pressure one-way valve and the mouthpiece , a pressure sensor is provided on the opening; an alarm device and a control device are also provided in the fuselage; one end of the air inlet pipe 3 is sleeved on the mouthpiece 13, and the other end is provided with an air inlet needle, which is inserted into the mouth of the bottle The signal of the pressure sensor is transmitted to the control device through the signal line, and the control device analyzes and judges the pressure signal sent by the pressure sensor, and decides whether to open the alarm device to alarm; when the pressure of the negative pressure is less than the set value of the pressure check valve, The pressure one-way valve is in the closed state. When the pressure of the negative pressure is greater than the set value of the pressure one-way valve, the pressure one-way valve can be opened for air intake; Suction the air in the intake pipe to supplement, so that the intake pipe and the airway also generate negative pressure, this negative pressure is greater than the set value of the pressure check valve, the pressure check valve opens, and the outside air flows into the airway and the intake pipe , supplemented into the infusion bottle, so that the pressure inside and outside the infusion bottle is balanced, the air stops entering the infusion bottle, the negative pressure in the air intake pipe and airway decreases, and the pressure check valve closes; after normal infusion, open the valve located on the body The pressure sensor transmits the signal to the control system, and the control system records information such as the intake frequency during normal infusion and the signal strength during intake, and uses this information as a reference value. Then, the control system continuously sends the pressure sensor The sent pressure signal is compared with the recorded reference value to decide whether to turn on the alarm device to alarm; when the liquid level is lower than the intake needle, since there is no liquid separation, a continuous negative pressure will be generated in the airway , the signal returned by the pressure sensor to the control system is a continuous negative pressure signal, and the signal frequency will also change. When the control system detects a continuous negative pressure signal and the frequency is higher than the reference value, the control system will turn on the alarm device to alert the patient. The infusion with the nurse is about to be completed; when the control system monitors that the signal strength returned by the pressure sensor is consistent with the reference value, but the air intake frequency is lower than half of the reference value, the alarm device will be turned on to alert the patient and the nurse that the infusion pipe is blocked and the infusion slow down

The infusion bottle infusion reminder 1 is hung under the infusion bottle 2 through the clasp 11, which is a ring with one side open, and the clasp is stuck on the bottleneck of the infusion bottle; a downwardly extending connection is provided on the lower edge of the clasp Block 14, the lower edge of the connecting block links to each other with the top wall of the fuselage 12, so that the fuselage is hung below the snap ring.

When the snap ring snaps onto the neck of the bottle, the body sits under the mouth of the bottle.

On the end face of the fuselage towards the upper infusion tube 5, a groove 15 from top to bottom is provided, the groove is semicircular, and its diameter is greater than that of the upper infusion tube; during use, the upper infusion tube is positioned in the infusion tube groove.

Beneficial effect

1. The infusion reminder for the infusion bottle is connected to the infusion bottle through the air return pipe. The control device analyzes and judges the pressure signal from the pressure sensor, and decides whether to turn on the alarm device to alarm; Cause the infusion speed to slow down, and the control device will open the alarm device to report to the police;

2. Using the infusion bottle infusion reminder, it is not necessary to arrange special personnel to check the infusion progress, which reduces the pressure on patients and their families, and makes the work of nurses more efficient.

Description of drawings

Fig. 1 is a front view structure sectional view of the present invention;

Figure 2 is an exploded view of Figure 1;

Fig. 3 is a front structural schematic diagram of the reminder of the present invention.

Detailed ways

As shown in Figure 1, Figure 2 and Figure 3, the infusion bottle infusion reminder 1 is hung on the infusion bottle 2 for use, and mainly includes a snap ring 11 and a body 12; the body 12 is provided with an air inlet and a mouthpiece 13 .

An air passage is provided in the fuselage, and one end of the air passage communicates with the mouthpiece 13, and the other end communicates with the air inlet. A pressure one-way valve is arranged in the air passage, an opening is arranged on the air passage between the pressure one-way valve and the mouthpiece, and a pressure sensor is arranged on the opening. The fuselage is also provided with an alarm device and a control device. The signal of the pressure sensor is transmitted to the control device through the signal line, and the control device analyzes and judges the pressure signal transmitted by the pressure sensor, and decides whether to turn on the alarm device to give an alarm.

One end of the air inlet pipe 3 is sleeved on the mouthpiece 13, and the other end is provided with an air inlet needle, which is inserted into the mouth of the bottle. The pressure sensor seals the opening. When negative pressure is formed in the airway, the pressure sensor can detect the same negative pressure signal, and then transmit the detected negative pressure signal to the control device, and the control device controls the pressure transmitted by the pressure sensor. The signal is analyzed and judged to decide whether to open the alarm device to alarm.

When the pressure of the negative pressure is lower than the set value of the pressure check valve, the pressure check valve is in the closed state; when the pressure of the negative pressure is greater than the set value of the pressure check valve, the pressure check valve can open the intake air, and air can flow in.

When the liquid medicine flows away and the negative pressure generated in the infusion bottle is large enough, the air in the intake pipe is sucked in to supplement, so that the negative pressure is also generated in the intake pipe and airway, which is greater than the setting of the pressure check valve value, the pressure one-way valve opens, the outside air flows into the airway and the air intake pipe, and replenishes into the infusion bottle, so that the pressure inside and outside the infusion bottle is balanced, the air stops entering the infusion bottle, and the negative pressure in the air intake pipe and airway decreases. The pressure check valve is closed.

Before use, insert the liquid introduction needle at the end of the upper dropper into the bottle cap, turn on the adjustment switch, so that the liquid medicine will enter the upper dropper through the introduction needle under the influence of gravity, then enter the drip bag, and then flow into the lower dropper. The air in the tube is expelled by the push of the liquid medicine. After two or three drops of the liquid medicine drip out from the infusion needle at the end of the dropper, insert the infusion needle into the patient’s indwelling needle to establish an infusion path, and then pass the Adjust the switch to adjust the speed of infusion.

During normal infusion, because the amount of liquid medicine in the bottle is sufficient and the liquid level is not lower than the drawing needle, the return of air is intermittent. Only when the liquid level drops to a certain level, the negative pressure enough to inhale air will be generated in the bottle, and only when the negative pressure reaches a certain level, will inhalation be achieved. The sum of the generated pressure is basically equal to the atmospheric pressure, stop the inhalation, and the medicine liquid will be dripped into the human body at a constant speed, until the negative pressure generated in the bottle reaches the level of inhalation again, then inhale again.

Since the speed of infusion has been adjusted by adjusting the switch, the liquid medicine in the infusion bottle flows down at a constant speed, so the frequency of sufficient negative pressure in the bottle to suck the outside air into the infusion bottle is also stable. At this time, open the The switch on the fuselage starts the control system to work. The control system first takes 1-2 minutes to record the pressure signal from the pressure sensor, and the control system records information such as the air intake frequency and the signal strength during normal infusion And use this information as a reference value, and then the control system continuously compares the pressure signal sent by the pressure sensor with the recorded reference value to decide whether to turn on the alarm device to alarm.

When the liquid level is lower than the inlet needle, since there is no liquid separation, a continuous negative pressure will be generated in the airway, and the signal returned by the pressure sensor to the control system is a continuous negative pressure signal, and the signal frequency will also occur. When the control system detects a continuous negative pressure signal and the frequency is higher than the reference value, the control system will turn on the alarm device to alert the patient and the nurse that the infusion is about to be completed.

When the control system monitors that the signal strength returned by the pressure sensor to the control system is consistent with the reference value, but the air intake frequency is lower than half of the reference value, the alarm device will be turned on to alert the patient and nurse that the infusion speed is slowed down due to blockage of the infusion pipeline. .

As shown in Figure 3, the infusion bottle infusion reminder 1 is hung below the infusion bottle 2 through the snap ring 11, the snap ring 11 is an annular shape with one side opening, and the snap ring is stuck on the bottleneck of the infusion bottle; There is a connecting block 14 extending downward, and the lower edge of the connecting block is connected with the top wall of the fuselage 12, so that the fuselage is hung below the snap ring.

When the snap ring snaps onto the neck of the bottle, the body sits under the mouth of the bottle.

On the end face of the fuselage towards the upper infusion tube 5, a groove 15 from top to bottom is provided, the groove is semicircular, and its diameter is greater than that of the upper infusion tube; during use, the upper infusion tube is positioned in the infusion tube groove.

The above-mentioned embodiments are only used to illustrate and explain the purpose of the present invention, rather than to limit the present invention. Those of ordinary skill in the art may make various changes or substitutions within the essential scope of the present invention, which shall also belong to the present invention. scope of protection for inventions.

Claims (4)

1. infusion bottle infusion reminder (1), hangs over the upper use of infusion bottle (2), it is characterized in that: mainly comprise snap ring (11), fuselage (12); Fuselage (12) is provided with air inlet and spigot joint (13), is provided with air flue in fuselage, and one end of air flue communicates with spigot joint (13), and the other end communicates with air inlet; In air flue, be provided with pressure check valve, pressure check valve and spigot joint between air flue on be provided with perforate, perforate is provided with pressure transducer; Alarm device and control device is also provided with in fuselage; Air inlet pipe (3) one end is socketed on spigot joint (13), and the other end is provided with air inlet needle, in air inlet pinprick bottle inlet mouth; The signal of pressure transducer passes to control device by holding wire, and control device carries out analysis to the pressure signal that pressure transducer transmits and judges, determines that whether opening alarm device reports to the police; When the pressure of negative pressure is less than the setting value of pressure check valve, pressure check valve is in closed condition, and when the pressure of negative pressure is greater than the setting value of pressure check valve, pressure check valve just can open air inlet; When medicinal liquid flow away the negative pressure that causes producing in infusion bottle enough large time, the air inhaled in dynamic air inlet pipe enters supplementary, thus make also to produce negative pressure in air inlet pipe and air flue, this negative pressure is greater than the setting value of pressure check valve, and pressure check valve is opened, extraneous air flows into air flue and air inlet pipe, add in infusion bottle, make the pressure attains equilibrium inside and outside infusion bottle, air stops entering infusion bottle, negative pressure in air inlet pipe and air flue reduces, and pressure check valve is closed; After starting normal infusion, open the switch be located on fuselage, pressure transducer by signal transmission to control system, the information such as signal intensity when air inlet frequency when control system records normal infusion and air inlet, and by these information as reference value, then, the pressure signal that pressure transducer is constantly sent by control system compares with the reference value recorded, and determines that whether opening alarm device reports to the police; When liquid level is lower than air inlet syringe needle, due to the separation without liquid, therefore, continuous print negative pressure will be produced in air flue, the signal that pressure transducer returns to control system is exactly continuous print negative pressure signal, and signal frequency also can change, when control system continuous negative pressure signal detected and frequency higher than reference value time, control system is opened alarm device and is reported to the police, and reminds sufferer and nurse's transfusion to be near completion; When control system, to monitor the signal intensity that pressure transducer returns consistent with reference value, but air inlet frequency is lower than the half of reference value, opens alarm device and reports to the police, remind sufferer and nurse, and liquid-transport pipe-line is because blocking causes transfusion speed to slow down.

2. infusion bottle infusion reminder according to claim 1, it is characterized in that: infusion bottle infusion reminder (1) hangs over infusion bottle (2) below by snap ring (11), snap ring (11) is the annular of a side opening, and snap ring is stuck on the bottleneck of infusion bottle; Be provided with the contiguous block (14) to downward-extension at the lower limb of snap ring, the lower limb of contiguous block is connected with the roof of fuselage (12), and fuselage is hung over below snap ring.

3. infusion bottle infusion reminder according to claim 2, is characterized in that: when snap ring is stuck on bottleneck, fuselage is positioned at below bottle neck.

4. infusion bottle infusion reminder according to claim 1, is characterized in that: on the end face of fuselage towards upper tubing (5), be provided with top-down groove (15), and groove is semicircle, and its diameter is greater than the diameter of upper tubing; During use, upper tubing is positioned at transfusion tube seat.