CN219558337U

CN219558337U - Infusion bag heater

Info

Publication number: CN219558337U
Application number: CN202223265207.0U
Authority: CN
Inventors: 陈林; 夏丽娜; 钟锐; 廖俊
Original assignee: Chengdu Second Peoples Hospital
Current assignee: Chengdu Second Peoples Hospital
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-08-22
Anticipated expiration: 2032-12-07

Abstract

The utility model provides an infusion bag heater, which belongs to the field of auxiliary medical appliances and comprises a heat-preserving shell and a heating circuit, wherein an object placing port is arranged on the heat-preserving shell, and a hook is arranged at the top end of the heat-preserving shell and used for accommodating an infusion bag; the heating circuit is arranged on the heat-preserving shell and is used for heating the infusion bag. Further, the heat-insulating shell consists of a heating inner bag and a vacuum cavity layer coated on the heating inner bag, and the heating circuit is arranged in the heating inner bag. The infusion bag can be accommodated in the heat-insulating shell and heated by the heating circuit, so that infusion liquid can be uniformly heated, and the core temperature of a patient can be maintained at a normal level.

Description

Infusion bag heater

Technical Field

The utility model belongs to the field of auxiliary medical appliances, and particularly relates to an infusion bag heater.

Background

Intravenous drip is a common treatment means in clinic at present, but due to the low temperature of the infusion liquid and the influence of own diseases and other stress factors on the clinical patients, the core temperature is lowered, so that metabolic abnormality of different degrees and even life threatening of the patients are caused.

Therefore, the prior art has a plurality of auxiliary heating devices, mainly divided into a transfusion tube heating device and a hand heating device, wherein the transfusion tube heating device is used for heating the transfusion tube, and the problems of uneven heating of liquid, easy generation of bubbles, air embolism and the like exist, so that the safety is lower. The hand heating device is a heating device which is arranged under the hand of the patient for transfusion so as to achieve the effect of heating the hand, but the heating device can only achieve the effect of locally heating the hand, and the infused low-temperature liquid can still lead to the core temperature of the patient to be reduced.

Disclosure of Invention

Based on the background problem, the utility model aims to provide the infusion bag heater which can be used for accommodating and heating the infusion bag, so that the liquid can reach or approach the temperature of a machine body, and the liquid is heated uniformly.

In order to achieve the above object, the technical solution provided by the embodiments of the present utility model is:

an infusion bag heater comprising:

the infusion bag is characterized by comprising a heat-insulating shell, wherein the heat-insulating shell is provided with an object placing port, and the top end of the heat-insulating shell is provided with a hook for accommodating the infusion bag;

and the heating circuit is arranged on the heat-insulating shell and is used for heating the infusion bag.

In one embodiment, the heat-insulating shell consists of a heating inner bag and a vacuum cavity layer coated on the heating inner bag, and the heating circuit is arranged in the heating inner bag.

In one embodiment, the heating circuit comprises:

and the heating device is a heating resistor or/and an electric heating wire.

Further, the heating device is a PTC thermistor.

In one embodiment, the heating circuit further comprises:

the buzzer is connected with the heating device in parallel, and the buzzer and the heating device are connected with a power supply in a switching mode through a control piece.

Further, the heating device is electrically connected with a contact I, the buzzer is electrically connected with a contact II, and the control member comprises:

the conductive spring is arranged at the top in the heat-insulating shell and is electrically connected with a power supply and used for connecting an infusion bag, and when infusion is carried out, the conductive spring is contacted with the contact I and disconnected with the contact II, and when the infusion is finished, the conductive spring is disconnected with the contact I and contacted with the contact II.

Furthermore, the contact I and the contact II are of conductive groove structures, the contact I is arranged below the contact II, and a gap is arranged between the contact I and the contact II;

the bottom of the conductive spring is fixed with a conductive rod, and the conductive rod is vertically distributed with the axial direction of the conductive spring and can be connected with the contact I and the contact II in a sliding fit manner.

Furthermore, the bottom end of the conductive spring is provided with an insulating hook for hanging the infusion bag.

In one embodiment, the heating circuit further comprises:

the NTC thermistor and the fuse are connected in series with the buzzer and connected in parallel with the heating device, and are used for disconnecting the buzzer from the power supply when the current exceeds a specified value.

In one embodiment, the placement port is a zipper type placement port.

Compared with the prior art, the embodiment of the utility model has at least the following effects:

1. the utility model provides an infusion bag heater which can be used for accommodating an infusion bag in a heat-preserving shell and heating the infusion bag through a heating circuit, so that infusion liquid can be uniformly heated, and the core temperature of a patient can be maintained at a normal level; in addition, the infusion bag is accommodated through the heat-insulating shell, and the infusion bag can be suitable for infusion of liquid medicine needing light shielding.

2. The heat-insulating shell consists of the heating inner bag and the vacuum cavity layer coated on the heating inner bag, and the vacuum cavity layer can insulate heat and insulate heat.

3. The heating device is preferably a PTC thermistor, the resistance value of the heating device is increased along with the increase of the temperature, the PTC thermistor is electrified to generate heat to heat the infusion bag at the initial stage of infusion, and the temperature in the heat-insulating shell is increased continuously along with the progress of infusion, so that the resistance value of the PTC thermistor is increased, the heating value of the PTC thermistor is reduced, and the overheating of the infusion bag with continuously reduced liquid can be avoided.

4. The heating circuit also comprises a buzzer, the buzzer and the heating device are connected with the power supply in a switching way through the control piece, namely, in the infusion process, the heating device is electrically connected with the power supply to heat infusion liquid, when the infusion is completed, the heating device is disconnected with the power supply, and the buzzer is electrically connected with the power supply to prompt the completion of the infusion.

5. The heating circuit also comprises the NTC thermistor and the fuse, when the transfusion is finished, if a worker fails to timely disconnect the power supply, the buzzer can continuously work, therefore, the heating circuit provided by the utility model has the advantages that the NTC thermistor is matched with the fuse, when the buzzer works for a long time, the NTC thermistor can be heated, the temperature of the NTC thermistor is increased to reduce the resistance, the current is increased, when the current is increased to the set current of the fuse, the fuse is disconnected, and the buzzer stops working, so that the heating circuit has the advantage of being more convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.

FIG. 1 is a front view of a heater for an infusion bag in accordance with embodiment 1 of the utility model;

FIG. 2 is a front sectional view of the heater for an infusion bag in embodiment 1 of the utility model;

FIG. 3 is a schematic diagram of a heating circuit in embodiment 1 of the present utility model;

FIG. 4 is a schematic circuit diagram of the heating circuit of embodiment 2 of the present utility model when the heating device circuit is turned on;

FIG. 5 is a schematic diagram of the heating circuit in embodiment 2 of the present utility model when the buzzer circuit is turned on;

FIG. 6 is a front sectional view (initial stage of transfusion) of the heater for transfusion bag in embodiment 2 of the present utility model;

FIG. 7 is a front sectional view (mid-infusion) showing the heater for an infusion bag according to embodiment 2 of the utility model in use;

FIG. 8 is a front sectional view (after the transfusion) showing the heater for transfusion bag according to embodiment 2 of the present utility model;

fig. 9 is a circuit diagram of a heating circuit in embodiment 3 of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "rear," and the like indicate an azimuth or a positional relationship based on that shown in the drawings of the specification, and are merely for convenience of description and to simplify the description, but do not indicate or imply that the apparatus or elements to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In order to solve the problems of the conventional infusion tube heating device and the conventional hand heating device, the embodiment of the utility model provides an infusion bag heater, which can be used for accommodating an infusion bag in a heat-preserving shell and heating the infusion bag through a heating circuit, so that infusion liquid can be uniformly heated, and the core temperature of a patient can be ensured to be maintained at a normal level.

The technical scheme of the utility model will be explained by specific examples.

Example 1

Infusion bag heater, as shown in fig. 1 and 2, comprising: a heat-insulating shell 1 and a heating circuit 2.

In this embodiment, the insulating housing 1 is provided with a storage opening 101 for placing and taking out the infusion bag, and specifically, the storage opening 101 in this embodiment is a zipper-type storage opening, so that the infusion bag can be closed, and on one hand, the infusion bag is prevented from falling, and on the other hand, heat preservation can be realized.

Specifically as shown in fig. 2, the heat-insulating shell 1 is composed of a heating inner bag 1-1 and a vacuum cavity layer 1-2, the vacuum cavity layer 1-2 is coated on the outer part of the heating inner bag 1-1, and the vacuum cavity layer 1-2 has the heat-insulating effect.

In order to facilitate the hanging, as shown in fig. 1 and 2, in this embodiment, a hook 102 is further provided at the top end of the heat insulation housing 1, and the heat insulation housing can be hung at a high place through the hook 102.

In this embodiment, the heating circuit 2 is disposed inside the heat-generating inner bag 1-1, specifically, in the interlayer of the heat-generating inner bag 1-1, for heating the infusion bag. As shown in fig. 3, the heating circuit 2 includes a heating device, and the heating device is connected in series with a switch and then connected to a power supply, and when the infusion bag is placed in the heat insulation housing 1, the switch can be turned on to start the heating device to work.

The heating device in this embodiment is at least one selected from a heating resistor and an electric heating wire, further, the heating device may be a PTC thermistor, the resistance value of which increases with the increase of temperature, and in the initial stage of infusion, the PTC thermistor is electrified to generate heat to heat the infusion bag, and as the infusion progresses, the temperature in the heat-insulating housing 1 increases continuously, so that the resistance value of the PTC thermistor increases, and under the condition that the output voltage of the power supply is unchanged, the heating value of the PTC thermistor decreases, so that the infusion bag with continuously reduced liquid can be prevented from being excessively heated.

When the infusion device is used, the object placing opening 101 is opened firstly, the infusion bag is placed into the cavity of the heating inner bag 1-1, then the object placing opening 101 is closed by the zipper, finally the switch is opened, and the heater is hung on the high position integrally, so that heating infusion can be performed.

The infusion bag heater of this embodiment has the effect that the heating is even to can control heating device's calorific capacity to reduce when the liquid in the infusion bag descends constantly, thereby avoid the infusion bag overheated, in addition, this embodiment can also satisfy the infusion that needs the light-resistant liquid medicine.

Example 2

As shown in fig. 4 and 5, unlike embodiment 1, the heating circuit 2 of the present embodiment further includes a buzzer connected in parallel with the heating device, and the buzzer and the heating device are connected in switching with a power supply through a control member.

Namely, in the infusion process, the heating device is electrically connected with the power supply so as to heat infusion liquid, and when the infusion is completed, the heating device is disconnected with the power supply, and the buzzer is electrically connected with the power supply so as to prompt that the infusion is completed.

In order to achieve the above-described functions, the present embodiment gives the following example structure:

as shown in fig. 6, the heating device is electrically connected with a contact I201, the buzzer is electrically connected with a contact II 202, both the contact I201 and the contact II 202 are in a conductive groove structure, the contact I201 and the contact II 202 are specifically fixed on the inner wall of the heating inner bag 1-1, the contact I201 is disposed below the contact II 202, a gap is disposed between the contact I201 and the contact II 202, and the gap is required to be smaller than a size of a conductive rod 204 described later, so that the conductive rod 204 is prevented from moving from the contact I201 to the contact II 202.

The control piece comprises a conductive spring 203, as shown in fig. 6, the conductive spring 203 is arranged at the top in the heating inner bag 1-1 and is electrically connected with a power supply, a conductive rod 204 is connected to the bottom of the conductive spring 203, and the conductive rod 204 is vertically distributed with the axial direction of the conductive spring 203 and can be connected with the contact I201 and the contact II 202 in a sliding fit manner.

An insulating hook 205 is also fixed at the bottom end of the conductive spring 203, and is used for hanging an infusion bag.

As shown in fig. 6-8, at the initial stage of infusion, since the infusion bag is filled with liquid, the conductive spring 203 is stretched, and at this time, the conductive rod 204 contacts the contact I201, the circuit of the heating device is turned on, and the heating device is started and starts heating.

When the liquid in the infusion bag descends to the state shown in fig. 7, the conductive spring 203 contracts upwards, and the conductive rod 204 moves along the contact point I201; when the liquid in the infusion bag descends to the state shown as 8, namely the infusion is completed, the conductive spring 203 further contracts upwards to an initial state, at the moment, the conductive rod 204 moves from the contact I201 to the contact II 202, namely the loop of the heating device is disconnected, the loop of the buzzer is connected, and the buzzer is started to remind workers of the completion of the infusion.

According to the embodiment, the switching of the heating device loop and the buzzer loop can be realized through the structures such as the conductive spring and the conductive rod, so that when transfusion is finished, heating is automatically disconnected and staff is reminded.

Example 3

As shown in fig. 9, the infusion bag heater is different from embodiment 2 in that the heating circuit 2 of the present embodiment further includes an NTC thermistor and a fuse, both of which are connected in series with the buzzer and in parallel with the heating device.

When the infusion is finished, if a worker fails to close the switch in time, the buzzer can continuously work, and therefore, the embodiment is matched with the fuse through the NTC thermistor, when the buzzer works for a long time, the NTC thermistor can be heated, the temperature of the NTC thermistor is increased, the resistance of the NTC thermistor can be reduced, the current is increased, when the current is increased to the set current of the fuse, the fuse is disconnected, a buzzer loop can be disconnected, and therefore the infusion device stops working and has the advantage of being more convenient.

It should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present utility model.

Claims

1. Infusion bag heater, its characterized in that includes:

the heating circuit is arranged on the heat-insulating shell and is used for heating the infusion bag;

the heating device is a heating resistor or/and an electric heating wire;

the heating circuit further includes:

the buzzer is connected with the heating device in parallel, and the buzzer and the heating device are connected with a power supply in a switching way through a control piece;

the heating device electricity is connected with contact I, the buzzer electricity is connected with contact II, the control piece includes:

2. The infusion bag heater according to claim 1, wherein the heat-preserving shell consists of a heating inner bag and a vacuum cavity layer coated on the heating inner bag, and the heating circuit is arranged in the heating inner bag.

3. The infusion bag heater according to claim 1, wherein the heating device is a PTC thermistor.

4. The infusion bag heater according to claim 1, wherein the contact I and the contact II are both of a conductive groove structure, the contact I is arranged below the contact II, and a gap is arranged between the contact I and the contact II;

5. The infusion bag heater according to claim 1, wherein the bottom end of the conductive spring is provided with an insulating hook for hanging an infusion bag.

6. The infusion bag heater according to claim 1, wherein the heating circuit further comprises:

7. The infusion bag heater according to claim 1, wherein the placement port is a zipper-type placement port.