CN205055062U - Perfusion alarm - Google Patents

Abstract

The utility model discloses a perfusion alarm, including pressure sensor unit, singlechip unit and alarm unit, pressure sensor unit and alarm unit respectively with the singlechip unit connection, the alarm unit is reported to the police according to the signal that the pressure sensor unit detected. The utility model discloses can be when the liquid volume of reaching the reservation, remind the nurse, for the time of nurse's reaction, it can, reduce because of changing the secondary puncture that untimely time blood of liquid leads to patient to set up the device, alleviates the painful of patient and reduces patient's expense, makes nurse's the more planned nature of work, improvement patient's that can be very big satisfaction.

Description

A transfusion alarm

technical field

The utility model belongs to the field of medical equipment, in particular to a novel electronic infusion automatic alarm.

Background technique

Infusion is to use a positive pressure difference relative to the blood pressure of the human body to inject medicinal liquid, blood, electrolytes, etc. into the blood vessels in the patient's body. There are following deficiencies in the current infusion method:

1. The workload of the nurse is heavy, and when the fluid cannot be found and replaced in time, the patient will cry out loudly after the fluid is exhausted, the patient will be nervous, anxious, and even return blood, worrying about the impact of air input on the body. Cause patient dissatisfaction with nursing services.

2. After the liquid returns to blood, if the liquid is not replaced in time, the needle will be blocked, causing the patient to undergo a second puncture, which will increase the pain and cost of the patient.

3. After the patient's liquid flows below the Murphy dropper, the nurse will replace the liquid, which will increase the nurse's single patient operation time (need to discharge the air), and increase the workload.

4. The patient is worried that the nurse is too busy and may call the nurse in advance. After the nurse arrives, he feels that the liquid has not been infused and the liquid is wasted. He asks the nurse to wait, and the effective working time of the nurse cannot be reflected.

5. For infusion patients, it is required that the liquid should be prepared and used immediately to ensure the efficacy of the medicine (especially penicillin, antibiotics, insulin). If 3-5 minutes can be reserved for the nurse to dispense the medicine, it can shorten the time for the patient to change the liquid after calling waiting time.

Utility model content

In view of this, the utility model provides an infusion alarm.

The purpose of this utility model is achieved by such technical scheme, a kind of infusion alarm, comprises pressure sensor unit, single-chip microcomputer unit and alarm unit, and described pressure sensor unit and alarm unit are connected with single-chip microcomputer unit respectively, and described alarm unit is according to The signal detected by the pressure sensor unit gives an alarm.

Further, the pressure sensor unit includes a pressure sensor with a groove, and the suspension part of the infusion bag is hung into the groove.

Further, the pressure sensor unit includes an annular engaging unit and a resistance strain gauge, and the annular engaging unit includes a first half-annular engaging portion and a second half-annular engaging portion, and the first half-annular engaging portion is connected to the The second semi-annular engaging part is movably connected, and the first semi-annular engaging part is arranged opposite to the second semi-annular engaging part to form an annular engaging unit with a through hole in the middle, and the resistance strain gauge is closely attached to the first half-annular engaging part. The inner arc surface of the semi-annular engaging portion or the second semi-annular engaging portion.

Further, the alarm also includes a wireless transmitting unit and a wireless receiving unit for receiving signals from the wireless transmitting unit, the wireless transmitting unit is connected to the single-chip microcomputer unit, and the wireless receiving unit is connected to the alarm unit.

Further, the alarm also includes a photodetector, the photodetector includes a light emitting tube and a light receiving tube that receives the light signal of the light emitting tube, the light emitting tube and the light receiving tube form a detection area, and the detection The area is above the liquid level in the infusion drip funnel.

Further, the alarm device also includes a key module connected to the single-chip microcomputer unit.

Advantage of the utility model:

The utility model can remind the nurse when the liquid reaches the reserved amount, and give the nurse time to react. The device can reduce the secondary puncture of the patient caused by the untimely return of blood due to the replacement of the liquid, relieve the pain of the patient and reduce the cost of the patient. Making nurses' work more planned can greatly improve patient satisfaction.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a block diagram of the utility model;

Fig. 2 is the installation position drawing of photoelectric detector;

Fig. 3 is an embodiment of a pressure sensor unit.

detailed description

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present utility model, rather than limiting the protection scope of the present utility model.

As shown in Figure 1, a kind of infusion alarm comprises a pressure sensor unit, a single-chip microcomputer unit and an alarm unit, and the pressure sensor unit and the alarm unit are respectively connected with the single-chip microcomputer unit, and the alarm unit detects the signal according to the pressure sensor unit. Call the police. There is an alarm preset value in the single-chip microcomputer unit. When the pressure value detected by the pressure sensor unit is lower than the alarm preset value, the alarm unit sends out an alarm signal, and the staff at the nurse's desk receive the alarm signal and come to the hospital bed to change the medicine or dispose of it. work, the alarm unit can be set on the nurse's desk, and can also be set on the mobile terminal.

As an embodiment, the pressure sensor unit is arranged on a hook or bracket for hanging the infusion bag, and the pressure sensor unit includes a pressure sensor with a groove, and the hanging part of the infusion bag is hung into the groove.

As another embodiment, the pressure sensor unit includes an annular engaging unit and a strain gauge 5, and the annular engaging unit includes a first half-annular engaging portion 4 and a second half-annular engaging portion 7, the The first semi-annular engaging portion is movably connected to the second semi-annular engaging portion, and the first semi-annular engaging portion is opposite to the second semi-annular engaging portion to form an annular engaging unit with a through hole in the middle. The hole is used to pass the infusion tube 6 . The resistance strain gauge is closely attached to the inner arc surface of the first semi-annular engaging portion or the second semi-annular engaging portion. Or both the first semi-annular engaging portion and the second semi-annular engaging portion are provided with resistance strain gauges. In this embodiment, the radius of the through hole is equal to or slightly larger than the radius of the infusion tube, and the resistance strain gauge will change its own resistance according to the pressure of the infusion tube. When the pressure of the infusion tube is lower than the preset pressure value, an alarm signal is sent. In this embodiment, the pressure sensor unit is arranged outside the opening of the infusion bag and close to the opening of the bag.

The alarm also includes a wireless transmitting unit and a wireless receiving unit for receiving signals from the wireless transmitting unit, the wireless transmitting unit is connected with the single-chip microcomputer unit, and the wireless receiving unit is connected with the alarm unit.

As an improvement to this embodiment, the alarm also includes a photodetector, the photodetector includes a light emitting tube 2 and a light receiving tube that receives the light signal of the light emitting tube 3, and the light emitting tube and the light receiving tube form a A detection area, the detection area is located above the liquid level in the infusion dripping container 1 .

The photodetector is identified based on the on-off of the light. In the two states of the light being blocked or the light not being blocked, the photodetector detects the change of the light signal and generates an electrical signal. When the light state changes very weakly, such as whether there is white liquid medicine in the infusion tube, it is difficult for the photodetector to detect. Therefore, the photodetector is arranged at the position of the dropping funnel, and the connection line between the light-emitting tube and the light-receiving tube is above the liquid level in the infusion dropping funnel. Above the liquid surface in the dropping funnel, the droplets drip intermittently, and the surface of the droplets has a scattering effect on the light, so that the light received by the light receiving tube is very weak, and when the droplets drop, the last drop has not yet dropped When the dropping funnel is empty, the light can completely pass through. At this time, the light received by the light receiving tube is very strong, and the change of the light state is very obvious. Even if the liquid medicine is white, the photoelectric detector can detect it and can produce Strong electrical signal.

But this intermittent change does not mean that the infusion has been completed. Only when there is no more drop in a continuous period of time (such as 5 seconds) after a drop drops, can it be confirmed that the infusion is complete or abnormal, and the electrical signal at this time can be used for alarming. Moreover, the photoelectric detector can also estimate the time when the liquid in the dropping funnel is finished according to the capacity of the liquid in the dropping funnel after detecting the total amount of dripping liquid in a period of time, and the nurse can complete the corresponding treatment according to the time period .

Since conventional liquid medicine bags/bottles have different volumes/weights, the alarm also includes a button module, which is connected to the single-chip microcomputer unit, and the user can perform different pressure presets according to different liquid medicine bags/bottles. Set value or time setting.

As another improvement to the utility model, the utility model includes a variety of infusion modes. For example, when only one bag/bottle is infused, the liquid medicine will not be replaced halfway, so only one alarm is required, and at this time only the The photodetector works.

If there are two bags/bottles, the drug solution will be replaced midway, and only two alarms are required at this time, then the pressure sensor and photoelectric detector need to be started to work at this time. When the first alarm occurs, replace the infusion bag/bottle , when the second alarm, end the infusion, and so on. Therefore, it is only necessary for the nurse to set and activate the button module according to the different infusion conditions.

The alarm unit is but not limited to an audible and visual alarm, which can also be displayed in the form of voice or text, and the text can include "need to change fluid" or "end infusion".

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (6)

1. an infusion alarm, it is characterized in that: comprise pressure sensor unit, single machine unit and alarm unit, described pressure sensor unit is connected with single machine unit respectively with alarm unit, and the signal that described alarm unit detects according to pressure sensor unit is reported to the police.

2. infusion alarm according to claim 1, is characterized in that: described pressure sensor unit comprises the reeded pressure transducer of band, and the suspension part of transfusion bag is linked in groove.

3. infusion alarm according to claim 1, it is characterized in that: described pressure sensor unit comprises annular engaging unit and resistance strain gage, described annular engaging unit comprises the first semi-circular holding section and the second semi-circular holding section, described first semi-circular holding section is flexibly connected with the second semi-circular holding section, described first semi-circular holding section and the second semi-circular holding section have the annular engaging unit of through hole in the middle of being oppositely arranged and being formed, described resistance strain gage is close to the inner side arcwall face of the first semi-circular holding section or the second semi-circular holding section.

4. infusion alarm according to claim 1, it is characterized in that: described alarm also comprises wireless transmitting unit and receives the radio receiving unit of wireless transmitting unit signal, described wireless transmitting unit is connected with single machine unit, and described radio receiving unit is connected with alarm unit.

5. infusion alarm according to claim 1, it is characterized in that: described alarm also comprises photoelectric detector, described photoelectric detector comprises light-emitting tube and receives the light receiving tube of light-emitting tube optical signal, described light-emitting tube and light receiving tube form a surveyed area, and described surveyed area is arranged in the top of Perfusion drip funnel liquid level.

6. infusion alarm according to claim 1, is characterized in that: described alarm also comprises key-press module, and described key-press module is connected with single machine unit.