CN110559511A

CN110559511A - Safety transfusion alarm

Info

Publication number: CN110559511A
Application number: CN201910930549.3A
Authority: CN
Inventors: 王道累; 李超; 韩洋; 刘易腾; 柴萍萍; 李敏; 毕学成; 曹晨艺; 赛亚军
Original assignee: Shanghai University of Electric Power
Current assignee: Shanghai University of Electric Power
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2019-12-13
Anticipated expiration: 2039-09-29
Also published as: CN110559511B

Abstract

The invention relates to a safety transfusion alarm, which comprises a cavity (2) for containing liquid, wherein the bottom of the cavity (2) is provided with a floating plate (3) with a variable upper position and a variable lower position, the floating plate (3) is connected with an alarm unit (7), the cavity (2), the floating plate (3) and the alarm unit (7) are all wrapped by a shell (1), the top of the shell (1) is provided with a sharp corner (4) communicated with the cavity (2), the side surface of the shell (1) is provided with an insertion hole (5) communicated with the cavity (2) corresponding to the bottom of the cavity (2), the bottom of the front surface of the shell (1) is provided with a button (6), and the button (6) is connected with the alarm unit (7). Compared with the prior art, the automatic alarm device has the advantages of simple structure, small volume and convenient operation, applies pressure to the floating plate by utilizing the weight of liquid, controls the conduction of the alarm unit circuit through the floating plate switch and the alarm switch, can timely and reliably send out an alarm, and can ensure that liquid medicine is fully infused without waste.

Description

safety transfusion alarm

Technical Field

The invention relates to the field of medical equipment, in particular to a safe infusion alarm.

background

In the process of transfusion operation in a hospital, a container filled with liquid medicine is usually hung at a certain height, the liquid medicine is input into the body of a patient by utilizing potential difference, the caliber of a rubber tube is compressed and loosened by a hose clamp so as to control the dropping speed, when the transfusion is nearly finished, medical staff are required to timely react and perform corresponding treatment, otherwise, the blood of the patient can flow back into a transfusion needle tube because of empty tubes, the traditional method is that the patient or family members check the allowance of the liquid medicine at any time and then inform the medical staff to perform treatment, however, in practice, the blood of the patient flows back when the treatment is not timely informed, or the needle pulling treatment is performed too early, so that the waste of the liquid medicine is caused.

At present, present infusion alarm is realized through gravity-feed tank and reports to police mostly, utilize the weight of liquid to monitor the infusion state promptly, chinese patent CN105107061B provides a gravity type infusion alarm, this infusion alarm is through the weight of being connected with liquid container, when liquid weight is less, the weight descends and triggers the alarm, thereby realize the purpose of timely warning, but this kind of infusion alarm need set up the lifting hook, the pulley, parts such as weight, its structure is complicated, and to the liquid of different capacity, need match the weight of different weight, the real operation is inconvenient, the low-usage.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a safe transfusion alarm which is small and simple in structure and convenient to operate, so that the aim of reliable and timely alarming is fulfilled.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a safe infusion alarm, is including the cavity that is used for holding liquid, the bottom below of cavity is equipped with the kickboard that position can change from top to bottom, the upper limit position of kickboard is injectd in the bottom position of cavity, the kickboard is with the cavity the kickboard is connected with alarm unit, cavity, kickboard and alarm unit are all wrapped up by the shell, the top of shell is equipped with the closed angle, the closed angle is hollow structure, the inside and the cavity of closed angle link up, the shell side is equipped with the jack corresponding to the position of cavity bottom, the jack link up with the cavity, the positive bottom of shell is equipped with the button, the button is connected with alarm unit, when kickboard and button all are in predetermined state, triggers alarm unit work.

Further, the alarm unit includes battery, kickboard switch, alarm switch and bee calling organ, the positive pole of battery is connected with the first end of kickboard switch, the second end of kickboard switch is connected with alarm switch's first end, the second end that the light was opened in the warning is connected to bee calling organ's first end, bee calling organ's second end is connected to the negative pole of battery.

further, the floating plate switch is a normally closed switch, and the alarm switch is a normally open switch.

Further, the floating plate is connected to the floating plate switch, when the floating plate is located at the normal position, the floating plate switch is disconnected, and when the floating plate is located at the alarm position, the floating plate switch is closed.

Further, the button is connected to an alarm switch which is closed when the button is pressed and open when the button is released.

Further, the alarm unit is hermetically installed below the floating plate.

further, the part of the housing, which wraps the cavity, is a transparent housing.

Furthermore, the surface of the transparent shell is marked with scales.

Compared with the prior art, the invention has the following advantages: the invention utilizes the influence of the weight of the liquid on the position of the floating plate to control the opening and closing of the switch of the floating plate, and combines the button to control the alarm switch, thereby being capable of automatically and reliably identifying the surplus of the liquid and giving out alarm sound through the buzzer in time to ensure that the liquid medicine is fully infused without waste.

drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic circuit diagram of an alarm unit with no liquid in the chamber in an initial state;

FIG. 4 is a schematic circuit diagram of the alarm unit with liquid in the chamber and the float plate in the normal position;

FIG. 5 is a schematic diagram of an alarm unit circuit with liquid in the chamber and the float plate in the alarm position;

The notation in the figure is: 1. the device comprises a shell, 2, a cavity, 3, a floating plate, 4, a sharp corner, 5, a jack, 6, a button, 7, an alarm unit, 71, a battery, 72, a floating plate switch, 73, an alarm switch, 74 and a buzzer.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

As shown in fig. 1 and 2, a safety transfusion alarm comprises a cavity 2 wrapped by a shell 1, a floating plate 3 and an alarm unit 7, wherein the floating plate 3 is positioned below the bottom of the cavity 2, the alarm unit 7 is arranged below the floating plate 3, the upper position and the lower position of the floating plate 3 can be changed, the upper limit position of the floating plate 3 is limited at the bottom of the cavity 2, the bottom of the cavity 2 is made of flexible material, the bottom of the cavity 2 can deform and press downwards along with the increase of the weight of liquid in the cavity 2, a hollow sharp corner 4 is arranged at the top of the shell 1, the inner part of the sharp corner 4 is communicated with the cavity 2, a jack 5 communicated with the cavity 2 is arranged at a position, corresponding to the bottom of the cavity 2, on the side surface of the shell 1, and a button 6 connected with the alarm unit 7 is arranged at the bottom of the;

As shown in fig. 3 to 5, the alarm unit 7 includes a battery 71, a float switch 72, an alarm switch 73, and a buzzer 74, which are connected in series in this order. The floating plate switch 72 is a normally closed switch, the floating plate 3 is connected with the floating plate switch 72, when the floating plate 3 descends to a normal position, the floating plate switch 72 is switched off, and when the floating plate 3 ascends to an alarm position, the floating plate switch 72 is switched on; the alarm switch 73 is a normally open switch, the button 6 is connected with the alarm switch 73, when the button 6 is pressed, the alarm switch 73 is closed, and when the button 6 is released, the alarm switch 73 is opened.

In this embodiment, cavity 2 is used for holding liquid, and alarm unit 7 installs in the below of kickboard 3 sealedly to prevent that the liquid in the cavity 2 from influencing alarm unit 7's circuit, the part that shell 1 wrapped up cavity 2 is transparent shell, and transparent shell surface mark has the scale, in order to make things convenient for the liquid surplus in the direct view cavity 2.

in a specific application, when no liquid exists in the cavity 2 and the cavity is in an initial state for transfusion preparation, the floating plate 3 is located at an initial position, a circuit of the alarm unit 7 is shown in fig. 3, the floating plate switch 72 is in a closed state, the alarm switch is in an open state, and the circuit does not work;

Then, the infusion apparatus is inserted into the jack 5, the infusion bottle is inverted, the sharp corner 4 is inserted into the bottle opening, liquid flows into the cavity 2, the weight of the liquid in the cavity 2 is continuously increased, the bottom of the cavity 2 can deform, when the bottom of the cavity 2 deforms and contacts the floating plate 3, the floating plate 3 gradually descends due to the liquid gravity, when the floating plate 3 descends to a normal position, the floating plate switch 72 is triggered to be switched off, at the moment, the circuit of the alarm unit 7 is as shown in fig. 4, the floating plate switch 72 and the alarm switch 73 are both in a disconnected state, and the circuit does not work;

Then press button 6, make alarm switch 73 closed, because the floating plate switch 72 is the off-state this moment, therefore the circuit of alarm unit 7 still does not work, along with the liquid in the infusion in-process passage, when the liquid weight in the cavity 2 constantly reduces, the bottom deformation of cavity 2 can resume gradually, the liquid gravity that bears on the floating plate 3 constantly reduces, make floating plate 3 rise gradually, when floating plate 3 rises to the alarm position, trigger floating plate switch 72 and close, at this moment, the circuit of alarm unit 7 is as shown in fig. 5, floating plate switch 72 and alarm switch 73 are the closed state, the circuit is closed and switched on, the buzzer gets electricity and sends the chimes of doom.

Claims

1. The safety transfusion alarm is characterized by comprising a cavity (2) for containing liquid, wherein a floating plate (3) with a variable upper position and a variable lower position is arranged below the bottom of the cavity (2), the upper limit position of the floating plate (3) is limited to the bottom of the cavity (2), the floating plate (3) is connected with an alarm unit (7), the cavity (2), the floating plate (3) and the alarm unit (7) are all wrapped by a shell (1), the top of the shell (1) is provided with a sharp corner (4), the sharp corner (4) is of a hollow structure, the inside of the sharp corner (4) is communicated with the cavity (2), the side surface of the shell (1) is provided with a jack (5) corresponding to the bottom of the cavity (2), the jack (5) is communicated with the cavity (2), the front bottom of the shell (1) is provided with a button (6), and the button (6) is connected with the alarm unit (7), when the floating plate (3) and the button (6) are both in a preset state, the alarm unit (7) is triggered to work.

2. a safety infusion alarm according to claim 1, wherein the alarm unit (7) comprises a battery (71), a float switch (72), an alarm switch (73) and a buzzer (74), the positive pole of the battery (71) is connected to a first end of the float switch (72), the second end of the float switch (72) is connected to a first end of the alarm switch (73), the second end of the alarm switch (73) is connected to a first end of the buzzer (74), and the second end of the buzzer (74) is connected to the negative pole of the battery (71).

3. A safety infusion alarm according to claim 2 wherein the float switch (72) is a normally closed switch and the alarm switch (73) is a normally open switch.

4. A safety infusion alarm according to claim 3 wherein the float (3) is connected to a float switch (72), the float switch (72) being open when the float (3) is in the normal position and the float switch (72) being closed when the float (3) is in the alarm position.

5. a safety infusion alarm according to claim 3, characterised in that the button (6) is connected to an alarm switch (73), the alarm switch (73) being closed when the button (6) is pressed and the alarm switch (73) being open when the button (6) is released.

6. A safety infusion alarm according to claim 1 wherein the alarm unit (7) is sealingly mounted below the float (3).

7. A safety infusion alarm according to claim 1 wherein the portion of the housing (1) surrounding the chamber (2) is a transparent housing.

8. The safety infusion alarm of claim 7, wherein the transparent housing is marked with graduations on its surface.