Transfusion device

Abstract

The utility model relates to the technical field of infusion instruments, in particular to an infusion apparatus which comprises a shell, a heating body, a temperature sensing unit, a flow sensing unit and a control unit. A fixing groove is formed in the shell; the heating body is arranged at the bottom in the shell corresponding to the fixing groove; the temperature sensing unit is arranged on the heating body; the flow sensing unit is arranged on the inner wall of the fixing groove; the control unit is arranged at the top in the shell and is connected with the heating body, the temperature sensing unit and the flow sensing unit; the control unit controls the output power of the heating body by receiving a signal of the temperature sensing unit so as to control the temperature of the infusion tube; the control unit judges whether liquid exists in the infusion tube or not by receiving signals of the flow sensing unit, and therefore the heating body is controlled to be opened and closed. The infusion tube can be automatically heated in the infusion process, so that the temperature of liquid medicine entering a human body is close to the body temperature of the human body, and the adverse reaction of a user during low-temperature infusion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion equipment, in particular to an infusion device. Background Art

[0002] China is the world's largest infusion consumer market. In the area north of the Yangtze River, the weather is cold in autumn and winter. Due to the huge temperature difference between the ambient temperature and the normal body temperature, intravenous infusion can cause muscle hardening, cramps, chills and other problems, which are very uncomfortable for patients, especially the frail elderly and children.

[0003] Common infusion treasures on the market, such as the brand Jumanxi, model SYBJ0001, have a built-in temperature sensor. When the temperature sensor detects that the temperature of the liquid in the infusion tube is too low, it will transmit a signal to the controller, and the controller will turn on the alarm to remind medical staff. In the above way, although this infusion treasure has an early warning function for low-temperature intravenous infusion, it cannot directly heat the infusion tube, that is, the staff needs to heat it by themselves, resulting in certain limitations in the function of this infusion treasure and inconvenience in use. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide an infusion treasure, which can automatically heat the infusion tube during the infusion process, so that the temperature of the medicine entering the human body is close to the human body temperature, and solve the adverse reactions of users during low-temperature infusion.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The infusion device includes a shell, a heating body, a temperature sensing unit, a flow sensing unit, and a control unit;

[0007] The housing is provided with a fixing groove for fixing the infusion tube; the heating body is arranged at the bottom of the housing corresponding to the position of the fixing groove, and is used to heat the infusion tube; the temperature sensing unit is arranged on the heating body to detect the temperature of the heating body; the flow sensing unit is arranged on the inner wall of the fixing groove to detect whether there is liquid in the infusion tube; the control unit is arranged at the top of the housing and is connected to the heating body, the temperature sensing unit, and the flow sensing unit;

[0008] The control unit controls the output power of the heater by receiving the temperature sensing unit signal, thereby controlling the temperature of the infusion tube; the control unit determines whether there is liquid in the infusion tube by receiving the flow sensing unit signal, thereby controlling the opening and closing of the heater.

[0009] As an optional solution, the shell includes a top cover, a base and an inner bracket, the top cover is arranged on the opening of the base, the inner bracket is arranged in the base, and the control unit is installed on the upper surface of the inner bracket.

[0010] As an optional solution, the heating body includes an arched bar and a heating film, the arched bar is arranged along the fixing groove in the base below the inner bracket, and the heating film covers the surface of the arched bar and is connected to the control unit.

[0011] As an optional solution, a blind hole is axially opened at one end of the arched strip, and the temperature sensing unit is inserted into the blind hole.

[0012] As an optional solution, the fixing groove is opened on the lower surface of the base along the length direction of the base, and the inner wall of the groove is opened with a notch along the length direction, and the obstruction between the heating body and the infusion tube is eliminated through the notch.

[0013] As an optional solution, a heat insulation cover located below the inner bracket is provided on the outer side of the heating body.

[0014] As an optional solution, it also includes buttons and indicator lights, which are arranged at intervals on the upper surface of the shell and connected to the control unit.

[0015] As an optional solution, a buzzer connected to the control unit is further included, and the control unit controls the opening and closing of the buzzer by receiving the signal from the flow sensing unit.

[0016] Due to the adoption of the above technical solution, the utility model will have the following beneficial effects:

[0017] The utility model provides an infusion treasure. During the infusion process, when the temperature sensing unit detects that the temperature of the liquid medicine in the infusion tube is too low, it will send a signal to the control unit, and the control unit will control the output power of the heating body, thereby controlling the temperature of the liquid medicine in the infusion tube; after the infusion is completed, when the flow sensing unit detects that there is no liquid medicine in the infusion tube, it will send a signal to the control unit to turn off the heating body through the control unit. For low-temperature intravenous infusion, compared with the existing technology that only has an early warning function, the utility model can automatically heat the infusion tube to make the temperature of the liquid medicine entering the human body close to the human body temperature, solving the adverse reactions of users during low-temperature infusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an exploded view of the infusion treasure described in the embodiment of the utility model;

[0020] Figure 2 for Figure 1 A three-dimensional diagram of the infusion treasure described in the embodiment;

[0021] Figure 3 for Figure 1 A three-dimensional image of the infusion device described in the embodiment from another angle.

[0022] Figure numerals: 1. Shell; 11. Top cover; 12. Base; 121. Fixing groove; 1211. Inner wall of groove; 13. Inner bracket; 2. Heating body; 21. Arched bar; 211. Blind hole; 22. Heating film; 23. Heat insulation cover; 3. Temperature sensing unit; 4. Flow sensing unit; 5. Circuit board; 61. Button; 62. Indicator light; 621. Lampshade; 622. Shade. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical" and "

[0025] The directions or positional relationships indicated by ", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figure 1-3 In one embodiment of an infusion treasure of the utility model, the infusion treasure comprises a housing 1, a heating body 2, a temperature sensing unit 3, a flow sensing unit 4, and a control unit:

[0028] Among them, the housing 1 is provided with a fixing groove 121 for fixing the infusion tube; the heating body 2 is arranged at the position corresponding to the fixing groove 121 in the bottom of the housing 1, and is used to heat the infusion tube. In addition, the temperature sensing unit 3 is arranged on the heating body 2 to detect the temperature of the heating body 2. Specifically, the temperature sensing unit 3 can adopt an NTC temperature sensor, which is a negative temperature coefficient thermistor sensor. The NTC temperature sensor uses the negative correlation between the change in the temperature of the thermistor and the change in the resistance value to measure the temperature change of the environment or the object. Its working principle is based on the thermal effect, which is the characteristic that the resistance value decreases when the temperature rises and increases when the temperature decreases in the conductivity of the material. In addition, the flow sensing unit 4 is arranged on the inner wall 1211 of the fixing groove 121 to detect whether there is liquid in the infusion tube. Specifically, the flow sensing unit 4 can adopt a capacitive flow sensor, which is a sensor for measuring fluid flow and works based on the principle of capacitance. It determines the flow by measuring the capacitance change generated when the medium (such as liquid or gas) passes through the pipeline. Whether there is liquid medicine in the infusion tube will make the threshold value of the capacitive flow sensor different, and the infusion is judged whether it is completed by detecting the threshold value of the capacitive flow sensor. The flow sensing unit 4 can also adopt sensors based on the principles of photoelectric induction, ultrasonic induction, etc. In principle, as long as it can detect whether there is liquid medicine passing through the infusion tube. In addition, the control unit is arranged at the top of the housing 1 and connected to the heating body 2, the temperature sensing unit 3, and the flow sensing unit 4. Specifically, the control unit can adopt the STM32 series microcontroller of STMicroelectronics, and the microcontroller (Microcontroller, referred to as MCU) is a microcomputer chip that integrates a processor core, a storage device, and various input and output interfaces. It is generally used to control and execute various tasks and functions in embedded systems. Through programming, developers can use the functions and interfaces of the microcontroller to realize various control and processing tasks, thereby meeting specific application requirements.

[0029] During intravenous infusion, the control unit controls the output power of the heating body 2 by receiving the signal from the temperature sensing unit 3, thereby controlling the temperature of the infusion tube. At the same time, the control unit determines whether there is liquid in the infusion tube by receiving the signal from the flow sensing unit 4, thereby controlling the opening and closing of the heating body 2.

[0030] Specifically, the shell 1 can be configured to include a top cover 11, a base 12 and an inner bracket 13; the top cover 11 is in the shape of a long strip, with an arc-shaped cross-section and arc-shaped ends, and the top cover 11 is connected to the opening of the base 12 by an interference fit; the shape of the base 12 is adapted to the shape of the top cover 11, the height of the base 12 is slightly higher than the top cover 11, and the inner periphery of the base 12 is vertically fixedly connected with a plurality of fixing columns along the circumferential direction, and the heights of these fixing columns are all the same and higher than the height of the heating body 2; the inner bracket 13 is arranged in the base 12 and is U-shaped to reduce the overall weight of the infusion treasure, and a circuit board 5 is arranged on the upper surface of the inner bracket 13, and the control unit is connected to the circuit board 5; during installation, the circuit board 5 and the inner bracket 13 are fixed to the above-mentioned fixing columns by screws.

[0031] Further, the heating body 2 can be configured to include an arched bar 21 and a heating film 22, the arched bar 21 is arranged along the fixing groove 121 in the base 12 below the inner bracket 13, and the size of the arched bar 21 is preferably slightly larger than the size of an ordinary infusion tube. The heating film 22 covers the surface of the arched bar 21 and is connected to the control unit. The heating film 22 is a thin film material for heating equipment or products. It is usually made of conductive material and can be heated by electric current to maintain temperature, heat food, heat liquid or heat other items. The heating film 22 can be widely used in the fields of household appliances, industrial equipment, medical equipment, etc. It has the advantages of rapid heating, energy saving, safety and reliability, and is a common heating element. The heating film 22 of this embodiment can be flexible, so that the heating film 22 can be tightly covered on the inner and outer surfaces of the arched bar 21 to continuously provide heat to the arched bar 21.

[0032] Furthermore, in order to more accurately detect the temperature of the heating body 2, a circular blind hole 211 can be axially opened at one end of the arch bar 21, and the temperature sensing unit 3 is inserted into the blind hole 211. This can increase the contact area between the temperature sensing unit 3 and the arch bar 21 and improve the accuracy of the detection result.

[0033] Furthermore, the fixing groove 121 can be set in a U shape, which is opened on the lower surface of the base 12 along the length direction of the base 12. The width of the fixing groove 121 is slightly smaller than the outer diameter of a common infusion tube, so that the infusion tube can be fixed in the fixing groove 121 along the length direction by interference fit, and the deformation of the infusion tube will not be too large to affect the infusion. A notch is opened along the length direction of the groove inner wall 1211, so that the barrier between the heating body 2 and the infusion tube can be eliminated through the notch, thereby improving the heat transfer effect.

[0034] Furthermore, a heat insulation cover 23 located below the inner bracket 13 can be provided on the outside of the heating body 2. The heat insulation cover 23 is preferably arranged in an arch shape and is made of a silicone material. Both ends of the heat insulation cover 23 are fixedly connected to the inner bottom wall of the base 12 and cover the heating body 2, so that the heating body 2 and the inside of the shell 1 can be isolated, and the heat transferred from the heating body 2 to the inside of the shell 1 can be reduced to prevent the components inside the shell 1 from being affected.

[0035] On this basis, a button 61 and an indicator light 62 may also be provided, and the button 61 and the indicator light 62 are arranged at intervals on the upper surface of the housing 1 and connected to the control unit. Specifically, the indicator light 62 is mounted on the above-mentioned circuit board 5, and a lampshade 621 and a shading plate 622 are arranged on the indicator light 62 in sequence from top to bottom. The lampshade 621 exposed on the upper surface of the housing 1 plays a role in protecting the indicator light 62, and the shading plate 622 under the lampshade 621 can prevent the eyes from being stimulated by the strong light of the indicator light 62. The button 61 is also mounted on the above-mentioned circuit board 5 and exposed on the upper surface of the housing 1. The heating body 2 can be turned on and off by the button 61, and the corresponding state is displayed by the indicator light 62.

[0036] On this basis, a buzzer connected to the control unit can also be provided, and the buzzer can be optionally installed on the circuit board 5. The control unit controls the opening and closing of the buzzer by receiving the signal of the flow sensing unit 4. After the infusion is completed, the flow sensing unit 4 detects that there is no liquid medicine in the infusion tube, and the flow sensing unit 4 sends a signal to the control unit to turn on the buzzer through the control unit to sound an alarm, so as to prevent venous blood from flowing back into the infusion tube.

[0037] The usage method or working principle of the utility model is as follows:

[0038] Before infusion, the infusion tube is first fixed in the fixed groove 121 along the length direction; during the infusion process, when the temperature sensing unit 3 detects that the temperature of the medicine liquid in the infusion tube is too low, it will send a signal to the control unit, and the control unit controls the output power of the heating body 2, thereby controlling the temperature of the medicine liquid in the infusion tube; after the infusion is completed, when the flow sensing unit 4 detects that there is no medicine liquid in the infusion tube, it sends a signal to the control unit to turn off the heating body 2 through the control unit, and at the same time turns on the buzzer to sound an alarm to remind the staff to prevent venous blood from flowing back into the infusion tube.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. Infusion treasure, characterized in that, It comprises a housing (1), a heating body (2), a temperature sensing unit (3), a flow sensing unit (4), and a control unit; The housing (1) is provided with a fixing groove (121) for fixing the infusion tube; the heating body (2) is arranged at a position corresponding to the fixing groove (121) on the bottom of the housing (1) and is used to heat the infusion tube; the temperature sensing unit (3) is arranged on the heating body (2) to detect the temperature of the heating body (2); the flow sensing unit (4) is arranged on the inner wall (1211) of the fixing groove (121) to detect whether there is liquid in the infusion tube; the control unit is arranged at the top of the housing (1) and is connected to the heating body (2), the temperature sensing unit (3) and the flow sensing unit (4); The control unit controls the output power of the heating body (2) by receiving the signal from the temperature sensing unit (3), thereby controlling the temperature of the infusion tube; the control unit determines whether there is liquid in the infusion tube by receiving the signal from the flow sensing unit (4), thereby controlling the opening and closing of the heating body (2).

2. The infusion treasure according to claim 1, characterized in that: The housing (1) comprises a top cover (11), a base (12) and an inner bracket (13); the top cover (11) is arranged on an opening of the base (12); the inner bracket (13) is arranged in the base (12); and the control unit is mounted on the upper surface of the inner bracket (13).

3. The infusion treasure according to claim 2, characterized in that: The heating body (2) comprises an arched strip (21) and a heating film (22); the arched strip (21) is arranged along the fixing groove (121) in the base (12) below the inner bracket (13); the heating film (22) covers the surface of the arched strip (21) and is connected to the control unit.

4. The infusion treasure according to claim 3, characterized in that: A blind hole (211) is provided at one end of the arched strip (21) along the axial direction, and the temperature sensing unit (3) is inserted into the blind hole (211).

5. The infusion treasure according to any one of claims 2 to 4, characterized in that: The fixing groove (121) is provided on the lower surface of the base (12) along the length direction of the base (12), and a notch is provided on the inner wall (1211) of the groove along the length direction, so that the obstruction between the heating body (2) and the infusion tube is eliminated through the notch.

6. The infusion treasure according to claim 2, characterized in that: The outer side of the heating body (2) is provided with a heat insulation cover (23) located below the inner bracket (13).

7. The infusion treasure according to claim 1, characterized in that: It also comprises a button (61) and an indicator light (62), wherein the button (61) and the indicator light (62) are arranged at intervals on the upper surface of the housing (1) and are connected to the control unit.

8. The infusion treasure according to claim 1, characterized in that: It also comprises a buzzer connected to the control unit, and the control unit controls the opening and closing of the buzzer by receiving a signal from the flow sensing unit (4).

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