CN110975062A

CN110975062A - Infusion monitoring device

Info

Publication number: CN110975062A
Application number: CN201911306042.7A
Authority: CN
Inventors: 陈星�; 李微; 滕雪梅; 苏根发
Original assignee: Nanjing College of Information Technology
Current assignee: Nanjing College of Information Technology
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-04-10

Abstract

The invention discloses an infusion monitoring device, which comprises a supporting body, an ultrasonic probe, a flow measurement and control unit and a liquid-free alarm unit, wherein the supporting body is provided with a support body; the supporting body comprises a first clamping piece and a second clamping piece which are clamped with each other to form a cavity through which the liquid conveying pipe can pass; the transmitter and the receiver of the ultrasonic probe are respectively arranged on the two clamping pieces and are used for detecting the flow of the liquid medicine in the infusion tube penetrating through the cavity; the flow measurement and control unit can receive signals detected by the ultrasonic probe, and when the flow of the liquid medicine in the infusion tube is zero, the liquid-free alarm unit is controlled to output an alarm. When the infusion tube is used, the infusion tube is only required to be placed between the first clamping piece and the second clamping piece, the two clamping pieces are clamped, the liquid medicine flow in the infusion tube is detected by the ultrasonic probe, liquid-free alarming is realized, the liquid medicine is not in direct contact with the liquid medicine, the liquid medicine pollution condition is avoided, and the infusion tube has the advantages of simple structure, simplicity and convenience in operation, low cost and reusability, and is favorable for market popularization and use.

Description

Infusion monitoring device

Technical Field

The invention relates to an infusion monitoring device, and belongs to the technical field of medical instruments.

Background

Infusion is a common effective treatment mode, however, the situation of no liquid or no liquid can occur in the infusion process, and the situation is not found in time, thereby bringing unnecessary trouble to patients,

at present, some new products have been developed in the existing market, such as an infusion alarm device, chinese patent No. ZL200920139590.0, which has been introduced by some large hospitals in our country, the alarm device comprises a sensor, a sensing floater and an alarm, the sensing floater is arranged in the infusion bottle and the surface of the sensing floater is coated with medical sanitary rubber, the sensor is arranged at the position where the bottle mouth of the infusion bottle is level with a warning line and is electrically connected with the alarm, and the sensor senses the sensing floater and then controls the alarm to work. This application can monitor the interior liquid level situation of drip bottle automatically and in time send the police dispatch newspaper to nurse personnel or nurse to a certain extent, has avoided causing unnecessary trouble and medical accident because of the human negligence, but inside the response floater in this application need place the drip bottle in, very inconvenient among the in-service use process, can lead to the fact the pollution to the liquid medicine unavoidably, and secondly the inductor is infrared ray sensor ware, and is expensive.

In addition, when the normal-temperature liquid medicine enters a human body, additional stimulation and discomfort can be brought, and especially in cold seasons, the influence on children, old people and people with fine and dense blood vessels is more sensitive.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides an infusion monitoring device which outputs an alarm when no liquid medicine exists in an infusion tube, and the infusion monitoring device is simple in structure and low in cost.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

an infusion monitoring device comprises a supporting body, an ultrasonic probe, a flow measurement and control unit and a liquid-free alarm unit; the supporting body comprises a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are clamped with each other to form a cavity through which the liquid conveying pipe can pass; the transmitter and the receiver of the ultrasonic probe are respectively arranged on the two clamping pieces and are used for detecting the flow of the liquid medicine in the infusion tube penetrating through the cavity; the flow measurement and control unit can receive signals detected by the ultrasonic probe, and when the flow of the liquid medicine in the infusion tube is zero, the flow measurement and control unit controls the liquid-free alarm unit to output an alarm.

Further, the cavity is provided with a liquid medicine heating device, and the liquid medicine heating device comprises a temperature control unit, two Harvard electric heating bodies and a temperature sensor which is arranged on the electric heating bodies and used for detecting the temperature of the liquid medicine; the electric heating body is internally embedded with an electric heating wire, and the electric heating wire is connected with a power supply after being connected with a relay in series; the temperature control unit can receive signals detected by the temperature sensor, and when the temperature of the liquid medicine is higher than a preset temperature, the relay is controlled to be disconnected so as to cut off electric signals between the heating wire and the power supply.

Furthermore, a sealing cover is arranged at one end of the electric heating body facing the outer side of the cavity, and a wire outlet hole is formed in the sealing cover.

Furthermore, an electrical box is connected to the supporting body, and the flow measurement and control unit, the liquid-free alarm unit, the temperature control unit, the relay and the power supply are all arranged in the electrical box.

Further, the electrical box includes box cover plate and uncovered box body, box cover plate can cover the uncovered of box body, and with the box body can be dismantled and be connected.

Furthermore, the bearing body is connected with the box cover plate through a pin-slot structure.

Furthermore, the power supply is a rechargeable voltage-stabilizing direct-current battery pack, an external interface is arranged on the electrical box, and the rechargeable voltage-stabilizing direct-current battery pack is electrically connected with the outside through the external interface to realize charging.

Further, the no-liquid alarm unit comprises a buzzer.

Furthermore, through holes are formed in the side walls of the first clamping piece and the second clamping piece in pairs, the transmitter of the ultrasonic probe is installed in one through hole, and the receiver is installed in the other through hole.

Furthermore, the axial included angle of the two through holes is 160 degrees.

Compared with the prior art, the invention has the following beneficial effects:

when the infusion tube is used, the infusion tube is placed between the first clamping piece and the second clamping piece, and the two clamping pieces are clamped, the ultrasonic probe is adopted for detecting the liquid medicine flow in the infusion tube, when the liquid medicine flow in the infusion tube is zero, an alarm is output, the liquid medicine flow monitoring can be realized without directly contacting with the liquid medicine, the liquid medicine pollution condition does not exist, and the infusion tube has the advantages of simple structure, simplicity and convenience in operation, low cost and reusability, and is beneficial to market popularization and use; the liquid medicine heating device is configured, liquid medicine can be heated, discomfort caused by injection of the liquid medicine into a human body can be relieved, automatic power off can be realized when the liquid medicine is heated to a preset temperature, and the liquid medicine heating device has high safety performance.

Drawings

FIG. 1 is an exploded view of an infusion monitoring device in accordance with an embodiment of the invention;

fig. 2 is a schematic structural diagram of an infusion monitoring device according to an embodiment of the invention;

FIG. 3 is a schematic block circuit diagram of an infusion monitoring device in accordance with an embodiment of the present invention;

in the figure: 1. sealing cover; 2. a temperature sensor; 3. an electric heater; 4. a carrier; 5. an ultrasonic probe; 6. a transfusion tube; 7. a box cover plate; 8. a temperature control unit; 9. a cartridge body; 10. a power source; 11. an external interface; 12. a buzzer; 13. a flow measurement and control unit; 14. a relay.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2, the infusion monitoring device provided by the embodiment of the invention includes a supporting body 4, an ultrasonic probe 5, a flow measurement and control unit 13 and a no-liquid alarm unit.

The carrier 4 includes a first engaging member and a second engaging member, which are engaged with each other to form a cavity for the infusion tube 6 to pass through.

The ultrasonic probe 5 comprises a transmitter and a receiver which are used in pairs, one of the transmitter and the receiver is arranged on the first clamping piece, the other one of the transmitter and the receiver is arranged on the second clamping piece, and an ultrasonic signal transmitted by the transmitter can be transmitted to the receiver through the infusion tube 6 so as to detect the flow of liquid medicine in the infusion tube 6 which passes through the cavity.

The flow measurement and control unit 13 judges the flow rate of the liquid medicine in the infusion tube 6 according to the received signal detected by the ultrasonic probe 5, and controls the no-liquid alarm unit to output an alarm when the flow rate of the liquid medicine in the infusion tube 6 is zero.

When the infusion tube is used, the infusion tube 6 is placed between the opened first clamping piece and the opened second clamping piece, and then the first clamping piece and the second clamping piece are clamped. According to the infusion monitoring device provided by the embodiment of the invention, the ultrasonic probe 5 is adopted to detect the flow of the liquid medicine in the infusion tube 6, the liquid medicine flow can be monitored without directly contacting the liquid medicine, and the situation of liquid medicine pollution does not exist; when the flow of the liquid medicine in the transfusion tube 6 is zero, the alarm is output, and unnecessary troubles and medical accidents caused by human negligence can be avoided. The novel multifunctional electric heating cooker has the advantages of simple structure, simplicity and convenience in operation, low cost and reusability, and is beneficial to market popularization and use.

As an example, the first engaging member and the second engaging member may be provided in a semi-cylindrical shape, and the two engaging members are engaged to form the cylindrical carrier 4. The two clamping pieces can be clamped through a buckle and also can be attracted through a magnet. However, in any connection mode, the purpose is to realize the quick connection of the two engaging members, and several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

As an example of mounting the ultrasonic probe 5, through holes communicating with the cavity are formed in the side walls of the first engaging member and the second engaging member, one of the through holes is used for mounting a transmitter of the ultrasonic probe 5, the other through hole is used for mounting a receiver of the ultrasonic probe 5, and a transmitting end of the transmitter and a receiving end of the receiver should face the cavity. In the embodiment of the present invention, the two through holes are coaxial, so that the ultrasonic signal emitted from the emitter can be received by the receiver, and the included angle between the axes of the two through holes and the axis of the cavity through which the liquid delivery tube 6 can pass is 160 °. When the flow rates of the liquid medicines in the infusion tube 6 are different, the time for transmitting the ultrasonic wave from the transmitter to the receiver is also different, and therefore, the flow rate of the liquid medicine in the infusion tube 6 can be determined according to the time for receiving the ultrasonic wave signal by the receiver.

In order to further relieve the discomfort caused by the fact that the liquid medicine is directly injected into a human body, the infusion monitoring device provided by the embodiment of the invention further comprises a liquid medicine heating device, and when the liquid medicine is heated to the preset temperature, the heating is stopped, so that the stimulation and the discomfort caused when the liquid medicine at the normal temperature enters the human body are reduced. Specifically, the liquid medicine heating device may include: a temperature control unit 8, a temperature sensor 2 and two Harvard electric heaters 3. The two electric heating bodies 3 are embedded with electric heating wires, and after being connected in series, the two electric heating wires are connected with a power supply 10 through a series relay 14. The temperature sensors 2 are disposed on the electric heaters 3, and may be disposed one or only one corresponding to the electric heaters 3, for detecting the temperature of the liquid medicine in the infusion tube 6, but in order to improve the sensitivity of temperature detection, two temperature sensors are preferably used in the embodiment of the present invention, and one corresponding to the electric heaters 3 is disposed to improve the safety performance. The temperature control unit 8 can receive the electric signal transmitted by the temperature sensor 2, judge whether the temperature of the liquid medicine is higher than a preset temperature according to the electric signal, and when the temperature of the liquid medicine is higher than a preset upper temperature limit, the temperature control unit 8 can control the relay 14 to be disconnected so as to cut off the electric signal between the heating wire and the power supply 10; when the temperature of the liquid medicine is lower than the preset temperature lower limit, the temperature control unit 8 can control the relay 14 to be closed again, so that the heating wire can be continuously electrified and heated, the automatic power on and off technology can further improve the safety performance of the infusion monitoring device.

The liquid medicine heating device may be disposed in a cavity formed by the first engaging member and the second engaging member, and the two electric heaters 3 may also be disposed in a semi-cylindrical shape, but the length thereof should be smaller than the length of the two engaging members to leave an installation space for the ultrasonic probe 5. The back of two electric heating body 3 all is equipped with the locating pin, corresponds on two fasteners and is equipped with the constant head tank, inserts the axial positioning that electric heating body 3 and fastener can be realized in the constant head tank with the locating pin of electric heating body 3.

In order to further improve the safety performance of the liquid medicine heating device, the end part of the electric heating body 3 facing the outer side of the cavity is provided with the sealing cover 1, and the sealing cover 1 is preferably made of an insulating material with better heat preservation and heat insulation performance, and the shape of the sealing cover is matched with the end part of the electric heating body 3 and is in a semicircular shape. The sealing cover 1 is provided with a wire outlet hole, and a connecting wire of the temperature sensor 2 and the electric heating wire can be led out from the wire outlet hole to be connected with an external power supply 10. Of course, the temperature sensor 2 may also adopt a temperature sensing module with a wireless signal transmission function, which can reduce wiring but has a relatively higher cost.

In order to make the infusion monitoring device provided by the embodiment of the invention more compact in structure, the embodiment of the invention is provided with an electrical box on the supporting body 4 for supporting each electrical element. Specifically, the electrical box can include box cover plate 7 and uncovered box body 9, and box cover plate 7 can cover the uncovered of box body 9 to be connected with box body 9 through dismantling the connected mode, for example, can be fixed in box body 9 with box cover plate 7 through the screw on. Set up the round pin axle on the supporting body 4, set up the keyway on the box cover board 7, will sell the axle and insert the keyway in and can realize the linking firmly of supporting body 4 and electric box.

As an example, the power source 10, the relay 14, the temperature control unit 8, the flow measurement and control unit 13, and the no-liquid alarm unit are all connected in the box body 9 in a threaded manner. The power supply 10 may be a rechargeable voltage-stabilizing dc battery pack, an external interface 11 is disposed on the electrical box, and the rechargeable voltage-stabilizing dc battery pack may be electrically connected to an external device through the external interface 11 to implement charging. The liquid-free alarm unit can be a buzzer 12. The temperature control unit 8 can be an XH-W1209 digital temperature controller (Jiangsu river electronics), and the flow measurement and control unit 13 can be a CS100A with an ultrasonic HC-SR04 module ranging chip. As shown in fig. 3, which is a schematic circuit block diagram of an infusion monitoring device according to an embodiment of the present invention, a power supply 10 simultaneously supplies power to a temperature sensor 2, a heating wire, a temperature control unit 8, a flow measurement and control unit 13, an ultrasonic probe 5, and a buzzer 12, the temperature sensor 2 and the circuit breaker are respectively in signal connection with the temperature control unit 8, and the ultrasonic probe 5 and the buzzer 12 are respectively in signal connection with a flow side empty unit. It should be noted that, this patent application does not relate to the improvement of the computer software program itself, and each unit in the circuit schematic block diagram can use a standard unit module, which is essentially the improvement of the composition of the hardware part and the connection relationship thereof.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; 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 by those of ordinary skill in the art through specific situations.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An infusion monitoring device is characterized by comprising a supporting body, an ultrasonic probe, a flow measurement and control unit and a liquid-free alarm unit; the supporting body comprises a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are clamped with each other to form a cavity through which the liquid conveying pipe can pass; the transmitter and the receiver of the ultrasonic probe are respectively arranged on the two clamping pieces and are used for detecting the flow of the liquid medicine in the infusion tube penetrating through the cavity; the flow measurement and control unit can receive signals detected by the ultrasonic probe, and when the flow of the liquid medicine in the infusion tube is zero, the flow measurement and control unit controls the liquid-free alarm unit to output an alarm.

2. The infusion monitoring device according to claim 1, wherein the cavity is provided with a liquid medicine heating device, and the liquid medicine heating device comprises a temperature control unit, two Harvard electric heaters and a temperature sensor arranged on the electric heaters and used for detecting the temperature of the liquid medicine; the electric heating body is internally embedded with an electric heating wire, and the electric heating wire is connected with a power supply after being connected with a relay in series; the temperature control unit can receive signals detected by the temperature sensor, and when the temperature of the liquid medicine is higher than a preset temperature, the relay is controlled to be disconnected so as to cut off electric signals between the heating wire and the power supply.

3. The infusion monitoring device according to claim 2, wherein a sealing cap is provided at an end of the electric heater facing the outside of the cavity, and the sealing cap is provided with an outlet hole.

4. The infusion monitoring device according to claim 2, wherein an electrical box is further connected to the supporting body, and the flow rate measurement and control unit, the no-liquid alarm unit, the temperature control unit, the relay and the power supply are all disposed in the electrical box.

5. The infusion monitoring device of claim 4, wherein the electrical cassette comprises a cassette cover and an open cassette body, the cassette cover capable of covering the opening of the cassette body and being removably connected to the cassette body.

6. The infusion monitoring device of claim 5, wherein the carrier and the cassette cover plate are connected by a pin and slot arrangement.

7. The infusion monitoring device according to claim 4, wherein the power source is a rechargeable voltage-stabilized DC battery pack, an external interface is provided on the electrical box, and the rechargeable voltage-stabilized DC battery pack is electrically connected with an external device through the external interface to realize charging.

8. The infusion monitoring device of claim 4, wherein the no-liquid alarm unit comprises a buzzer.

9. The infusion monitoring device according to claim 1, wherein the first engaging member and the second engaging member have through holes formed in side walls thereof, the through holes are coaxially disposed, the transmitter of the ultrasonic probe is mounted in one of the through holes, and the receiver is mounted in the other through hole.

10. The infusion monitoring device according to claim 9, wherein the axes of the through holes are at an angle of 160 ° to the axis of the cavity.