CN211611108U - Electromagnetic induction transfusion alarm - Google Patents
Electromagnetic induction transfusion alarm Download PDFInfo
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- CN211611108U CN211611108U CN201922237318.2U CN201922237318U CN211611108U CN 211611108 U CN211611108 U CN 211611108U CN 201922237318 U CN201922237318 U CN 201922237318U CN 211611108 U CN211611108 U CN 211611108U
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- dropper
- floating body
- electromagnetic induction
- magnetic floating
- oscillator
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Abstract
The utility model discloses an electromagnetic induction transfusion alarm, which comprises a dropper, wherein a magnetic floating body is arranged in the dropper; a buzzer, a power supply and a control circuit which are connected with the buzzer are arranged outside the dropper; the control circuit comprises an oscillator and a circuit processing chip; the inductance coil of the oscillator is wound at the lower end of the outer wall of the dropper. The transfusion alarm has the advantages that the lower end of the outer wall of the dropper is wound with the inductance coil of the oscillator, when the magnetic floating body is positioned above the dropper, the magnetic floating body does not interact with the inductance coil of the oscillator, and the buzzer does not act; when the magnetic floating body falls down along with the liquid level in the dropper and enters the inductance coil, the current in the oscillator fluctuates due to electromagnetic induction, the circuit processing chip sends an instruction at the moment, and the buzzer sends out an alarm sound to prompt infusion personnel to control infusion. The electromagnetic induction transfusion alarm is not influenced by the self property of transfusion liquid, transfusion time and light, is small and convenient, and can be recycled after being disinfected and cleaned.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to electromagnetic induction infusion alarm.
Background
At present, medical care personnel generally carry out infusion on patients through infusion tubes, after liquid flows out, the infusion tubes are manually replaced, and under the conditions that the patients are seriously ill, sleep well, careless accompanying personnel, the patients are infused at night or the medical care personnel can not take care of, and the phenomenon of blood backflow of the patients can easily occur when the liquid is infused out and measures are not taken. The existing transfusion alarm is mainly used for mentioning a light-sensing monitoring principle, such as CN 208598915U, and the light-sensing device is limited to a certain extent at night or when the liquid is not transparent, so that the monitoring cannot be accurately carried out. Some magnetic induction infusion alarm devices are complex and not clinically practical or can not be recycled, such as CN 206473626U and CN 109821105A.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims at providing an electromagnetic induction transfusion alarm.
In order to achieve the above object, the utility model adopts the following technical scheme:
an electromagnetic induction transfusion alarm comprises a dropper, wherein a magnetic floating body is arranged in the dropper; a buzzer, a power supply and a control circuit which are connected with the buzzer are arranged outside the dropper; the control circuit comprises an oscillator and a circuit processing chip; and an inductance coil of the oscillator is wound at the lower end of the outer wall of the dropper. In the early stage of transfusion, the dropper is filled with liquid, the magnetic floating body is positioned above the inner part of the dropper, no interaction exists between the magnetic floating body and an inductance coil of the oscillator, and the buzzer does not act. When the transfusion is about to end, the magnetic floating body falls along with the falling of the liquid level in the dropper, when the magnetic floating body enters an inductance coil of the oscillator, the current in the oscillator fluctuates due to electromagnetic induction, at the moment, the circuit processing chip sends out an instruction, and the buzzer sends out an alarm sound to prompt a transfusion worker to control the transfusion.
In a further scheme, an amplifying circuit and a filter circuit are further installed between the oscillator and the circuit processing chip. The current signal flowing out of the oscillator can be amplified through the amplifying circuit, and the clutter output circuit signal is filtered through the filter circuit.
In a further scheme, the magnetic floating body comprises a sealed shell and a magnet positioned inside the sealed shell; the density of the magnetic floating body is less than that of pure water at room temperature.
In a further scheme, the magnetic floating body comprises a sealed shell and an inductance coil positioned on the inner wall of the sealed shell; the inductance coil extends out of the wall of the sealed shell and is connected with a power supply through the dropper, and the power supply provides stable current for the inductance coil to generate a certain electromagnetic field around the inductance coil; the length of the inductance coil which penetrates out of the sealing shell to the dropper wall is long enough to ensure that the magnetic floating body can move up and down freely; the density of the magnetic floating body is less than that of pure water at room temperature.
In a further scheme, the material of the sealing shell is polyethylene plastic. The polyethylene plastic belongs to harmless materials, has stable property, does not react with substances in liquid, and has good safety.
In a further scheme, a first obstacle used for preventing the magnetic floating body from continuously rising is arranged above the inner part of the dropper; and a second obstacle used for preventing the magnetic floating body from continuously descending is arranged below the inner part of the dropper. The first barrier or the second barrier is a polyethylene plastic thin rod horizontally and parallelly arranged in the dropper, and the movement range of the magnetic floating body in the dropper can be limited by the blocking effect of the first barrier or the second barrier.
In a further scheme, a conical needle head is arranged above the dropper. The infusion alarm is connected between the medicine bottle and the medical general infusion tube, and the infusion alarm can be conveniently and quickly inserted into the medicine bottle through the conical needle. Further preferably, the conical needle is provided with a cock. During transfusion, when liquid enters the dropper, the cock is opened to exhaust the gas in the dropper, so that the dropper is filled with liquid preferentially.
In a further scheme, a connecting cover is installed at the bottom of the dropper, and a sealing gasket is arranged in the connecting cover; the connecting cover is a hollow spiral cover or a buckle, and the infusion alarm is hermetically connected with a needle head at the top end of the medical universal infusion tube through a sealing gasket; in addition, the sealing gasket is arranged in the connecting cover, so that the replacement is convenient.
Further, the diameter width of the magnetic floating body is 3/4-4/5 of the inner diameter of the dropper. The floating body can flexibly move up and down conveniently and the up-and-down position of the floating body can not be reversed.
Further, the magnetic pole of the magnet in the magnetic floating body (the magnetism of the inductance coil in the floating body) corresponds to the magnetism of the inductance coil of the oscillator by N to N, S to N, N to S, S to S, the circuit design of the corresponding circuit processing chip needs to be slightly adjusted, and a corresponding mode such as N to N can be selected for practical application to carry out assembly design, so that the production is convenient.
It should be noted that, the circuit element and the circuit processing chip are both commercially available products, wherein the circuit processing chip may be NE555 or its synephrine product, which is not a utility model of the device, and the specific working principle is not described herein, and those skilled in the art can independently select the corresponding product as required.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides an electromagnetic induction transfusion alarm, the lower end of the outer wall of a dropper is wound with an inductance coil of an oscillator, when a magnetic floating body is positioned above the dropper, the magnetic floating body and the inductance coil of the oscillator have no interaction, and a buzzer has no action; when the magnetic floating body falls down along with the liquid level in the dropper and passes through the inductance coil, the current in the oscillator fluctuates due to electromagnetic induction, the circuit processing chip sends an instruction at the moment, and the buzzer sends out an alarm sound to prompt infusion personnel to control infusion. The electromagnetic induction transfusion alarm is not influenced by the self property of transfusion liquid, transfusion time and light, is small and convenient, and can be recycled after being disinfected and cleaned.
Drawings
FIG. 1 is a schematic view showing the construction of an electromagnetic induction transfusion alarm in embodiment 1;
FIG. 2 is a schematic structural view of an electromagnetic induction infusion alarm in embodiment 2;
description of the drawings: 1-dropper, 2-magnetic floater, 3-buzzer, 4-power supply, 5-oscillator, 6-inductor coil of oscillator, 7-circuit processing chip, 8-sealed shell, 9-magnet, 10-inductor coil, 11-first barrier, 12-second barrier, 13-conical needle, 14-cock, 15-connecting cover and 16-sealing gasket.
Detailed Description
The present invention will be further described with reference to the following examples. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the following embodiments, the electromagnetic induction force between the magnetic floating body and the inductance coil of the oscillator cannot counteract the buoyancy and gravity applied to the magnetic floating body, and the magnetic floating body can always float on the liquid level and fall down along with the falling of the liquid level in the dropper.
Example 1
As shown in figure 1, the electromagnetic induction transfusion alarm comprises a cylindrical transparent plastic dropper 1, wherein a conical needle 13 is arranged above the dropper 1, and a cock 14 is arranged on the conical needle 13. When in use, the dropper 1 is connected between the medicine bottle and the medical general infusion tube, and the dropper 1 can be conveniently and quickly inserted into the medicine bottle through the conical needle 13. During infusion, as liquid enters the burette, the tap 14 is opened to allow gas to be displaced from the burette, thereby allowing liquid to preferentially fill the burette. The bottom of the dropper 1 is provided with a connecting cover 15, and the connecting cover 15 is a hollow screw cover or a buckle; a sealing gasket 16 is arranged in the connecting cover 15, and the dropper is hermetically connected with the needle head at the top end of the medical universal infusion tube through the sealing gasket 16; in addition, the sealing gasket is arranged in the connecting cover, so that the replacement is convenient.
A magnetic floating body 2 is arranged in the dropper 1, and the magnetic floating body 2 comprises a sealed shell 8 and a magnet 9 positioned in the sealed shell 8; the density of the magnetic floating body 2 is less than the density of pure water at room temperature. The sealed shell 8 is made of polyethylene plastic harmless materials and does not react with substances in liquid, and the sealed shell has good safety.
A buzzer 3, a power supply 4 connected with the buzzer 3 and a control circuit are arranged outside the dropper 1. The control circuit comprises an oscillator 6 and a circuit processing chip 7; and an inductance coil 6 of the oscillator is wound at the lower end of the outer wall of the dropper 1.
In the early stage of transfusion, the dropper 1 is filled with liquid, at the moment, the magnetic floating body 2 is positioned above the inner part of the dropper 1, no interaction exists between the magnetic floating body and the inductance coil 6 of the oscillator, and the buzzer 3 does not act. When the infusion is about to be finished, the magnetic floating body 2 falls along with the falling of the liquid level in the dropper, when the magnetic floating body 2 enters the inductance coil 6 of the oscillator, the current fluctuation in the oscillator 5 can be caused due to electromagnetic induction, clutter is filtered out through the filter circuit after being amplified by the amplifying circuit and is output to the circuit processing chip 7, at the moment, the circuit processing chip 7 sends out an instruction, and the buzzer 3 sends out an alarm sound to prompt infusion personnel to control the infusion. After the infusion alarm is used, the switch of the power supply 4 is turned off, the external interface of the dropper 1 and the like are disinfected by alcohol, the internal pipeline of the dropper is washed by normal saline and distilled water for several times to ensure cleanness without residues, and the rubber gasket at the lower end of the infusion alarm is replaced for the next infusion. When the battery electric quantity is low and the signal is sounded, the power supply battery is replaced, and the power supply battery can also be replaced regularly.
Further, an amplifying circuit and a filtering circuit are further installed between the oscillator 5 and the circuit processing chip 7. The current signal flowing out of the oscillator can be amplified through the amplifying circuit, and the clutter output circuit signal is filtered through the filter circuit.
In a further scheme, a first obstacle 11 for preventing the magnetic floating body 2 from continuously ascending is arranged above the inner part of the dropper 1; a second obstacle 12 for preventing the magnetic floating body 2 from further descending is arranged below the inner part of the dropper 1. The first barrier 11 or the second barrier 12 is a thin polyethylene plastic rod horizontally and parallelly installed in the dropper 1, and the movement range of the magnetic floating body 2 in the dropper 1 can be limited by the blocking effect of the first barrier 11 or the second barrier 12.
Further, the diameter width of the magnetic floating body 2 is set to be 3/4-4/5 of the inner diameter of the dropper 1. The floating body can flexibly move up and down conveniently, the up-and-down position of the floating body cannot be reversed, and liquid can flow normally.
Example 2
As another embodiment of the present invention, different from embodiment 1, the magnetic floating body 2 includes a sealed case 8 and an inductance coil 10 located inside the sealed case 8; one end of the inductance coil 10 extends out of the wall of the sealed shell 8 and is connected with the power supply 4 through the dropper 1, and the power supply 4 provides stable current for the inductance coil 10 to generate a certain electromagnetic field around the inductance coil; according to the practical application situation, an external resistor can be added between the power supply 4 and the inductance coil 10 to adjust the current supplied by the power supply 4 to the inductance coil 10; the length of the inductor coil which penetrates out of the sealing shell 8 to the dropper wall is long enough to ensure that the magnetic floating body can move up and down freely. And the outside of the inductance coil which penetrates out of the sealing shell 8 to the dropper wall is coated with polyethylene plastics, and simultaneously, the flexibility of the inductance coil is ensured to enable the magnetic floating body to move freely. The other structures in this embodiment are the same as those in embodiment 1.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. An electromagnetic induction transfusion alarm is characterized in that: comprises a dropper, wherein a magnetic floating body is arranged in the dropper; a buzzer, a power supply and a control circuit which are connected with the buzzer are arranged outside the dropper; the control circuit comprises an oscillator and a circuit processing chip; and an inductance coil of the oscillator is wound at the lower end of the outer wall of the dropper.
2. The electromagnetic induction infusion alarm of claim 1, wherein: an amplifying circuit and a filter circuit are also arranged between the oscillator and the circuit processing chip.
3. The electromagnetic induction infusion alarm of claim 1, wherein: the magnetic floating body comprises a sealed shell and a magnet positioned in the sealed shell; the density of the magnetic floating body is less than that of pure water at room temperature.
4. The electromagnetic induction infusion alarm of claim 1, wherein: the magnetic floating body comprises a sealed shell and an inductance coil positioned in the sealed shell; one end of the inductance coil extends out of the wall of the sealed shell and is connected with a power supply through the dropper; the density of the magnetic floating body is less than that of pure water at room temperature.
5. The electromagnetic induction infusion alarm of claim 3 or 4, wherein: the material of the sealing shell is polyethylene plastic.
6. The electromagnetic induction infusion alarm of claim 1, wherein: a first obstacle used for preventing the magnetic floating body from continuously rising is arranged above the inner part of the dropper; and a second obstacle used for preventing the magnetic floating body from continuously descending is arranged below the inner part of the dropper.
7. The electromagnetic induction infusion alarm of claim 1, wherein: a conical needle head is arranged above the dropper.
8. The electromagnetic induction infusion alarm of claim 7, wherein: a cock is arranged on the conical needle head.
9. The electromagnetic induction infusion alarm of claim 1, wherein: the bottom of the dropper is provided with a connecting cover, and a sealing gasket is arranged in the connecting cover.
10. The electromagnetic induction infusion alarm of claim 1, wherein: the diameter width of the magnetic floating body is 3/4-4/5 of the inner diameter of the dropper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237318.2U CN211611108U (en) | 2019-12-13 | 2019-12-13 | Electromagnetic induction transfusion alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237318.2U CN211611108U (en) | 2019-12-13 | 2019-12-13 | Electromagnetic induction transfusion alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211611108U true CN211611108U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922237318.2U Expired - Fee Related CN211611108U (en) | 2019-12-13 | 2019-12-13 | Electromagnetic induction transfusion alarm |
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| Country | Link |
|---|---|
| CN (1) | CN211611108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843385A (en) * | 2020-10-27 | 2021-05-28 | 山东开创云计算有限公司 | Wisdom transfusion bottle monitoring system |
-
2019
- 2019-12-13 CN CN201922237318.2U patent/CN211611108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843385A (en) * | 2020-10-27 | 2021-05-28 | 山东开创云计算有限公司 | Wisdom transfusion bottle monitoring system |
| CN112843385B (en) * | 2020-10-27 | 2022-11-22 | 山东开创云计算有限公司 | Wisdom transfusion bottle monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201002 Termination date: 20211213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |