CN219878705U - Nasal feeding transfusion device - Google Patents

Abstract

The utility model discloses a nasal feeding transfusion device, which comprises: an infusion tube; the liquid supply device is connected with the infusion tube to input nutrient solution into a patient through the infusion tube; the heating device is connected with the infusion tube to heat the nutrient solution passing through the infusion tube; the heating device is detachably connected with the infusion tube. Compared with the prior art, the nasal feeding infusion device not only meets the function of heating nutrient solution passing through the infusion tube so as to be absorbed by a patient, but also separates the heating device from the infusion tube after nasal feeding, so that the heating device can be reused, and nursing cost increase caused by discarding of the heating device is avoided.

Description

Nasal feeding transfusion device

Technical Field

The utility model relates to the technical field of medical care instruments, in particular to a nasal feeding infusion device.

Background

The nasal feeding method is that in special case, the stomach tube is put into esophagus via nasal cavity, the food and medicine are first pasted with stirrer, then the large injector is connected to the feeding port below the stomach tube joint, after the connection is firm, the manual pressurizing push rod piston injects the nutrient solution comprising water, food and medicine into the stomach of patient to help the patient incapable of swallowing independently to provide water, food and medicine, and maintain metabolism, weight, nutrition and medicine treatment in patient.

In the nasal feeding process, the nutrient solution is easy to be influenced by external temperature and change rapidly, and particularly in cold seasons, the nutrient solution is easy to cool, so that the nutrient solution with low temperature is easy to stimulate the stomach of a patient in the nasal feeding process, discomfort is brought to the patient, and the patient with gastrointestinal dysfunction is difficult to normally absorb the nutrient solution, thereby influencing the treatment and recovery effects.

For this reason, chinese patent publication No. CN215690005U discloses a feeding tube infusion apparatus, which comprises an infusion tube, and a nutrient solution joint and a liquid outlet joint at two ends of the infusion tube, wherein a nutrient pump, a dropping funnel and a dosing port are sequentially arranged on the infusion tube in the infusion direction, and a heating device is arranged at the position of the infusion tube close to the liquid outlet joint. When the nutrition tube gastric infusion apparatus is used, the nutrition liquid can be heated through the heating device at the tail end of the infusion tube, so that a patient can absorb the nutrition liquid more easily, and the treatment and recovery effects are ensured.

However, in the above-mentioned nutrition tube gastric infusion apparatus, the heating shell of the heating device is integrally connected with the infusion tube, and because the infusion tube is usually a disposable product, after the device is used, the heating device is usually treated as medical waste together with the infusion tube, that is, when the nasal feeding is performed on a patient each time, the nutrition tube feeding infusion apparatus needs to be replaced, and a new heating device is used, so that the nursing cost of nasal feeding is increased, which is unfavorable for popularization and application.

Accordingly, there is a need for improvements in the prior art nasal feeding infusion devices.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a nasal feeding transfusion device with a heating device which can be detached and reused to reduce nursing cost.

In order to achieve the technical effects, the technical scheme of the utility model is as follows: a nasal feeding infusion device, comprising:

an infusion tube;

the liquid supply device is connected with the infusion tube so as to input nutrient solution into a patient through the infusion tube;

the heating device is connected with the outer side wall connected with the infusion tube so as to heat the nutrient solution passing through the infusion tube;

the heating device is detachably connected with the infusion tube.

Preferably, in order to facilitate the heating device to heat the nutrient solution in the infusion tube, simultaneously facilitate the disassembly connection of the infusion tube and the heating device, the heating device comprises a heating sleeve sleeved outside the infusion tube, and an electric heating element is arranged in the heating sleeve.

Preferably, in order to avoid scalding nursing staff, the heat transfer to the infusion tube is convenient for be concentrated simultaneously, the heating sleeve overcoat is equipped with the insulating sheath.

Preferably, in order to prevent the heating sleeve from loosening on the infusion tube, the heating sleeve is ensured to be fully contacted with the infusion tube at the same time, so that the heating efficiency is improved, and the circumferential inner wall of the heating sleeve is in sealing fit with the infusion tube.

Preferably, in order to facilitate the sleeve to be sleeved outside the infusion tube, at least one end of the inner side of the heating sleeve is in a flaring shape.

Preferably, in order to realize the heating to the nutrient solution in the transfer line, make things convenient for transfer line and heating device's detachable connection simultaneously, heating device is including having the heating shell of stock solution chamber, be provided with electrothermal element and heat conduction liquid in the stock solution chamber, the transfer line including soak in the heat conduction liquid receive the hot section with respectively with two transmission sections that are connected at hot section both ends.

Preferably, in order to conveniently adjust and control the heating effect of the nutrient solution in the infusion tube, a through hole is arranged on the heating shell, and the through hole is used for the infusion tube to penetrate through so as to adjust the length of the heated section.

Preferably, in order to add the supplementary heat conduction liquid, the heating shell includes the open top casing and with casing lid that the casing can dismantle the connection, the casing with the casing lid encloses and closes and form the stock solution chamber.

Preferably, in order to facilitate observation of the liquid level position of the heat conducting liquid in the heating shell and simultaneously facilitate observation of the length of the heated section, the heating shell is a transparent heating shell.

Preferably, for convenience, the liquid supply device comprises a syringe and a three-way pipe, wherein the three-way pipe is provided with a connecting end communicated with a nipple of the syringe, a liquid suction end communicated with a nutrient solution source and an output end communicated with the liquid supply pipe, the liquid suction end is connected with a first one-way valve, and the output end is connected with a second one-way valve.

In summary, compared with the prior art, the nasal feeding infusion device provided by the utility model has the advantages that the heating device detachably connected with the infusion tube not only meets the function of heating the nutrient solution passing through the infusion tube so as to be absorbed by a patient, but also separates the heating device from the infusion tube after nasal feeding, so that the heating device can be reused, and the nursing cost increase caused by discarding of the heating device is avoided.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view showing the structure of a heating apparatus according to a first embodiment of the present utility model;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a cross-sectional view taken along the direction A-A of FIG. 4;

FIG. 6 is a schematic view of the structure of a second embodiment of the present utility model;

FIG. 7 is a schematic view showing the structure of a heating apparatus according to a second embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of a third embodiment of the present utility model;

FIG. 9 is an exploded view of FIG. 8;

FIG. 10 is a schematic view showing the structure of a heating apparatus according to a third embodiment of the present utility model;

FIG. 11 is a top view of FIG. 10;

FIG. 12 is a B-B sectional view of FIG. 10;

FIG. 13 is a schematic view of the structure of a housing according to a third embodiment of the present utility model;

FIG. 14 is a schematic view of a fourth embodiment of the present utility model

Fig. 15 is a schematic structural view of a fifth embodiment of the present utility model;

in the figure: 100. an infusion tube; 101. a heated section; 102. a transmission section; 200. a liquid supply device; 300. a heating device; 400. heating the sleeve; 500. an electric heating element; 501. a power line; 502. a plug; 503. a clamping frame; 600. a heat insulating sleeve; 700. heating the shell; 701. a through hole; 702. a housing; 703. a cover; 704. an exhaust hole; 800. a syringe; 900. a three-way pipe; 901. a connection end; 902. a liquid pumping end; 903. an output end; 110. a first one-way valve; 120. a second one-way valve; 130. a liquid suction pipe; 140. an isolation bracket; 150. a suction tube; 160. a suction valve.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

First embodiment

As shown in fig. 1 to 5, a nasal feeding infusion device of a first embodiment of the present utility model includes:

an infusion tube 100;

a liquid supply device 200, wherein the liquid supply device 200 is connected with the infusion tube 100 to input nutrient solution into a patient through the infusion tube 100;

a heating device 300, wherein the heating device 300 is connected with the outer side wall of the infusion tube 100 to heat the nutrient solution passing through the infusion tube 100;

the heating device 300 is detachably connected to the infusion tube 100.

When the nasal feeding infusion device of the embodiment is used, one end of the infusion tube 100 is placed into the esophagus through the nasal cavity of a patient, the other end of the infusion tube is connected with the liquid supply device 200, the liquid supply device 200 extracts nutrient solution formed by mixing water, medicine and food, and the mixed nutrient solution is injected into the stomach of the patient through the infusion tube 100, so that the patient can maintain the metabolic function of the body after absorbing the medicine, the food and the water, and medicine treatment is realized.

In order to avoid the supercooled nutrient solution from irritating the stomach of a patient, the heating device 300 is connected with the infusion tube 100, the nutrient solution is heated by the heating device 300 in the process of passing through the infusion tube 100, heat is transferred to the nutrient solution flowing in the infusion tube 100 through the wall of the infusion tube 100, the temperature of the nutrient solution is raised to 38-41 ℃ before the nutrient solution flows into the stomach of the patient, and the stimulation of the supercooled nutrient solution to the stomach of the patient is avoided, so that the patient can absorb the nutrient solution smoothly, and the physical rehabilitation is facilitated.

In this embodiment, the heating device 300 is connected to the outer sidewall of the infusion tube 100, so that the heating device 300 is not directly contacted with the nutrient solution in the infusion tube 100, and the heating device 300 is detachably connected to the infusion tube 100, so that after nasal feeding is completed, the heating device 300 can be separated from the infusion tube 100, the infusion tube 100 is used as a disposable medical product, and after the nasal feeding is completed, the heating device 300 can be directly used as medical waste for treatment, and the heating device 300 can be connected to other infusion tubes 100 when nasal feeding is performed next time, so that in this embodiment, the heating device 300 is prevented from being used as medical waste for treatment along with the infusion tube 100, and the heating device 300 is detachably connected to the infusion tube 100, thereby realizing the reuse of the heating device 300, and avoiding the increase of nasal feeding cost caused by discarding after the use of the heating device 300 once.

In order to realize the detachable connection of the heating device 300 and the infusion tube 100, the heating device 300 comprises a heating sleeve 400 sleeved outside the infusion tube 100, and an electric heating element 500 is arranged in the heating sleeve 400; a further improvement is that the heating sleeve 400 is externally sleeved with a heat insulation sleeve 600; the circumferential inner wall of the heating sleeve 400 is in sealing engagement with the circumferential outer edge of the infusion tube 100.

Specifically, in the heating device 300 of the present embodiment, the electric heating element 500 is a spiral electric heating wire, the electric heating wire is spirally fixed in the heating sleeve 400, two ends of the electric heating wire are fixedly connected with wires, the wires penetrate through the outer side wall of the heating sleeve 400 and then penetrate through the heat insulation sleeve 600, and the wires are used for connecting a power supply (including but not limited to a battery) to energize the electric heating element 500 so that the electric heating element 500 generates heat; the insulating sleeve 600 is insulating cotton for blocking heat transfer of the heating sleeve 400 to the outside.

After the heating device 300 adopts the structure, the heating sleeve 400 is directly sleeved outside the infusion tube 100, so that the circumferential inner wall of the heating sleeve 400 is in sealing fit with the circumferential outer edge of the infusion tube 100, then the electric heating element 500 is electrified through the guide at the two ends of the electric heating wire, after the electric heating element 500 heats, heat is transferred to the heating sleeve 400, and the heating sleeve 400 transfers the heat to nutrient solution flowing in the infusion tube 100 through the wall of the infusion tube 100, so that the heating function of the nutrient solution is realized; the heat insulation sleeve 600 that heating sleeve 400 overcoat was established can effectively reduce the heat of heating sleeve 400 outwards transmission to make things convenient for nursing staff to snatch heating device 300, prevent to be scalded, the heat of heating sleeve 400 is concentrated to the inboard transmission simultaneously, even make the heat concentrate to transfer in the transfer line 100, improve the heating effect, because the heat transfer efficiency to transfer line 100 increases, consequently, on realizing heating the requirement to 38 to 41 degrees centigrade with the interior nutrient solution of transfer line 100, can effectively reduce the area of contact of heating sleeve 400 and transfer line 100, can shorten the length of heating sleeve 400 and electrothermal member 500 this moment, with the nutrient solution of guaranteeing suitable temperature gets into the patient's stomach, avoid the nutrient solution high temperature to lead to the nutrient solution to suffer destruction, and the patient's stomach is stimulated to the too high nutrient solution, influence patient's recovery. After nasal feeding is completed, the heating sleeve 400 is pulled out from the infusion tube 100, or the infusion tube 100 is pulled out from the inner side of the heating sleeve 400, so that the heating device 300 and the infusion tube 100 can be detached and separated.

A further improvement is that at least one end of the inner side of the heating sleeve 400 is flared, and specifically, both ends of the inner side of the heating sleeve 400 are flared. By adopting the design, the sizes of the two ends of the inner side of the heating sleeve 400 are increased, so that the heating sleeve 400 is conveniently sleeved outside the infusion tube 100.

As shown in fig. 1 and 2, the specific structure of the liquid supply device 200 is that the liquid supply device 200 includes a syringe 800 and a tee 900, the tee 900 has a connection end 901 communicated with a nipple of the syringe 800, a liquid pumping end 902 for communicating with a nutrient solution source, and an output end 903 communicated with the infusion tube 100, the liquid pumping end 902 is connected with a first check valve 110, and the output end 903 is connected with a second check valve 120. Further specifically, the nipple of the syringe 800 is in sealing plugging fit with the connection end 901 of the three-way pipe 900, one end of the infusion tube 100 is in sealing plugging fit with the output end 903 of the three-way pipe 900, and the liquid suction end 902 of the three-way pipe 900 is in sealing plugging fit with the liquid suction tube 130; the inlet of the first one-way valve 110 is located between the outlet of the first one-way valve 110 and the withdrawal tube 130 and the outlet of the second one-way valve 120 is located between the inlet of the second one-way valve 120 and the infusion tube 100.

When the device is used, one end of the liquid suction pipe 130 far away from the three-way pipe 900 is inserted into nutrient solution, a nursing staff drives the piston of the syringe 800 to repeatedly push and pull, when the piston moves outwards, the nutrient solution enters the hollow cylinder of the syringe 800 through the liquid suction pipe 130, the liquid suction end 902, the connecting end 901 and the nipple of the syringe 800 in sequence, when the piston moves inwards, the nutrient solution in the hollow cylinder of the syringe 800 sequentially enters the infusion tube 100 through the nipple of the syringe 800, the connecting end 901 and the output end 903, and then enters the stomach of a patient from the infusion tube 100, so that the nursing staff can input the nutrient solution into the patient through the infusion tube 100 by repeatedly pushing and pulling the piston of the syringe 800.

Second embodiment

As shown in fig. 6 and 7, the nasal feeding infusion device of the second embodiment is based on the second embodiment, and is different in that the heating device 300 includes a clamping frame 503, the clamping frame 503 is in a clip shape, and has a clamping opening, and an electric heating element 500 is fixed on the inner wall of the clamping opening. When in use, the electric heating element 500 is clamped on the circumferential outer edge of the infusion tube 100 through the clamping frame 503, and the electric heating element 500 is electrified (the electrifying mode is the same as that of the electric heating element 500 in the first embodiment), so that the electric heating element 500 can generate heat, and the heat is transferred to the nutrient solution flowing inside through the tube wall of the infusion tube 100, so that the nutrient solution with proper temperature is ensured to be introduced into the stomach of a patient, and the patient can conveniently absorb the nutrient solution. After nasal feeding is completed, the clamping opening of the clamping frame 503 is opened, so that the clamping frame 503, the electric heating element 500 and the infusion tube 100 can be separated, and the heating device 300 can be reused.

Third embodiment

As shown in fig. 8 to 13, the nasal feeding infusion device of the third embodiment is different from the first embodiment in that the heating device 300 includes a heating housing 700 having a liquid storage cavity in which an electric heating element 500 and a heat conducting liquid are disposed, and the infusion tube 100 includes a heated section 101 immersed in the heat conducting liquid and two transmission sections 102 respectively communicating with both ends of the heated section 101.

Specifically, in this embodiment, when the device is in use, water is added into the liquid storage cavity of the heating shell 700, and the infusion tube 100 passes through the heating shell 700, so that the infusion tube 100 is divided into a heated section 101 immersed in water and a transmission section 102 communicated with two ends of the heated section 101. When nasal feeding is performed, the electric heating element 500 is electrified to generate heat, after water is heated, the heat is transferred to the nutrient solution flowing in the heated section 101 through the pipe wall of the infusion pipe 100 by the water, so that the nutrient solution enters the stomach of a patient through the other transmission section 102 after being heated, and the warmed nutrient solution is absorbed by the patient. After nasal feeding is completed, the infusion tube 100 is pulled out of the heating shell 700, so that the infusion tube 100 and the heating shell 700 are detached and separated, and the heating device 300 can be reused conveniently.

A further improvement is that a through hole 701 is arranged on the heating shell 700, and the through hole 701 is used for the infusion tube 100 to pass through so as to adjust the length of the heated section 101; the heating shell 700 comprises a shell 702 with an open top and a shell cover 703 detachably connected with the shell 702, wherein the shell 702 and the shell cover 703 enclose to form a liquid storage cavity; the heating case 700 is a transparent heating case 700. Specifically, the casing 703 is in threaded connection with the casing 702, the through holes 701 are arranged on the casing 703, the diameter of each through hole 701 is the same as the outer diameter of the infusion tube 100, the two through holes 701 are respectively used for the transmission sections 102 at the two ends of the infusion tube 100 to penetrate, and the casing 702 and the casing 703 are both made of plastic; the electric heater 500 is fixed at the bottom inside the housing 702, and the power cord 501 and the plug 502 connected with the power cord 501 are arranged outside the housing 702, and the plug 502 is electrically connected with the electric heater 500 through the power cord 501.

When the water in the liquid storage cavity needs to be heated, the plug 502 is connected with the power socket, the electric heating element 500 is powered through the power wire 501, so that the electric heating element 500 is electrified to generate heat so as to heat the water in the shell 702, and then the heated section 101 soaked in the water receives heat, so that the temperature of the nutrient solution passing through the heated section 101 is increased.

The heating shell 700 is mainly formed by combining a shell 702 and a shell cover 703 which are in threaded connection, the shell 702 is detachably connected with the shell cover 703, and a liquid storage cavity is formed by surrounding the shell 702 and the shell cover 703 when the shell 702 and the shell cover are connected, so that water is conveniently added into the liquid storage cavity of the heating shell 700, and heat conduction liquid is conveniently supplemented; of course, the housing 702 and the housing cover 703 may be detachably connected, such as by a clamping connection.

The through holes 701 are arranged on the shell cover 703, so that the two sections of the transmission sections 102 of the infusion tube 100 penetrate through the shell cover, the heated section 101 is positioned in the liquid storage cavity and soaked in water, after the electric heating element 500 heats, heat is transferred to nutrient solution passing through the heated section 101 through the water and the pipe wall of the heated section 101, and the nutrient solution is heated; the aperture of the through hole 701 is consistent with the outer diameter of the infusion tube 100, so that the infusion tube 100 is prevented from loosening when the infusion tube 100 passes through the through hole 701, a nursing staff can draw the infusion tube 100 at the position of the through hole 701 when nasal feeding is carried out, adjust the length of the infusion tube 100 in a liquid storage cavity, further adjust the length of a heated section 101, change the contact area between heating water in the liquid storage cavity and the infusion tube 100, namely the heat exchange area, further adjust the heating quantity of nutrient solution in the infusion tube 100, and avoid adverse effects on recovery of patients caused by too low or too high temperature of the nutrient solution.

During specific operation, when the electric heating element 500 heats water at an initial stage, the temperature rise amplitude of the water is lower, at this time, part of the infusion tube 100 is pulled into the liquid storage cavity, so that the length of the heated section 101 is increased, the heat exchange area of the infusion tube 100 and water is increased, the time for the nutrient solution to pass through the heated section 101 is prolonged, and thus the heat receiving amount of the nutrient solution is increased, so as to ensure the heating temperature of the nutrient solution, and at the middle and later stage of the heating of the water by the electric heating element 500, the water is heated and boiled, at this time, the water temperature is higher, part of the infusion tube 100 is pulled out of the heating shell 700, so that the length of the heated section 101 is shortened, the heat exchange area of the infusion tube 100 and the water is reduced, the time for the nutrient solution to pass through the heated section 101 is shortened, the nutrient solution is prevented from being damaged due to overlarge heating amount, the nutrient solution is ensured to enter the stomach of a patient at a proper temperature, and the patient is prevented from being stimulated.

Both the housing 702 and the housing cover 703 are made of glass; the heating shell 700 is transparent, so that the liquid level in the liquid storage cavity can be conveniently observed, water can be timely supplemented, and meanwhile, the length of the infusion tube 100 soaked in the water, namely the length of the heated section 101, can be conveniently observed, so that the infusion tube 100 can be correspondingly adjusted according to the change of the water temperature, and the length of the heated section 101 can be further adjusted.

Further improvement is, still be provided with exhaust hole 704 on the cap 703, exhaust hole 704 is used for intercommunication stock solution chamber and external world to when heating water, steam can discharge the stock solution chamber, avoids the inside atmospheric pressure of stock solution chamber too big. The isolation support 140 is fixed on the circumferential inner wall of the shell 702, the isolation support 140 is located above the electric heating element 500 and is of a net-shaped structure, the electric heating element 500 can be prevented from being directly contacted with the infusion tube 100 through the isolation support 140, the tube wall of the infusion tube 100 is prevented from being heated and melted, damage is caused to the infusion tube 100, and therefore the infusion tube 100 is guaranteed to safely convey nutrient solution.

Fourth embodiment

As shown in fig. 14, the nasal feeding infusion device of the fourth embodiment is based on the third embodiment, except that the heating device 300 is a milk warmer.

The top of the warm milk device (typically, the warm milk device cover is shown in fig. 14) is provided with a through hole, through which the infusion tube 100 is penetrated, so that the heated section 101 of the infusion tube 100 is soaked in the heating water of the warm milk device, and the water inside the warm milk device is heated by the warm milk device, so that heat is transferred to the nutrient solution passing through the heated section 101 of the infusion tube 100, and the nutrient solution with proper temperature enters the stomach of a patient, thereby being beneficial to absorption.

The heating device 300 in this embodiment may be selected from different types of milk warmers, such as a MUJIE milk warmer in japan, a long siphon CTN-B01 milk warmer, or a milk warmer disclosed in a chinese patent publication No. CN217907389U, CN217907389U, CN216166935U, and the heating requirement can be met by only providing a through hole in the milk warmer cover of the above type to allow the heated section 101 of the infusion tube 100 to be partially immersed in the heating water of the milk warmer.

Fifth embodiment

As shown in fig. 15, the nasal feeding infusion device of the fifth embodiment is based on the fourth embodiment, and is different in that the infusion tube 100 is communicated with a suction tube 150, the suction tube 150 is connected between two ends of the infusion tube 100, specifically, the suction tube 150 is communicated with one of the transmission sections 102 of the infusion tube 100 away from the syringe 800, a suction valve 160 is provided on the suction tube 150, and the suction tube 150 is used for connecting with the infusion device.

Before nasal feeding, the end of the infusion tube 100 far away from the injector 800 can be placed in the stomach of a patient, the suction valve 160 is opened, the suction tube 150 is connected with other liquid suction devices (such as a liquid suction pump, a negative pressure drainage device and the like), gastric juice is sucked out during suction, and the gastric juice passes through the suction tube 150, so that the end part of the infusion tube 100 is ensured to be in the stomach of the patient and the stomach tube is ensured to be unobstructed; after that, the suction tube 150 is closed, a small amount of warm boiled water is pumped through the suction tube 902, and then the warm boiled water is injected into the stomach of the patient by the syringe 800, and the lumen is lubricated by the warm boiled water, so that the nasal feeding liquid is prevented from adhering to the tube wall. The access tube 902 is then connected to a source of nutrient solution for nasal feeding.

Compared with the first embodiment to the fourth embodiment, the device is used for conveniently extracting part of gastric juice before nasal feeding and food infusion is carried out so as to judge whether the gastric tube is unobstructed, thereby being beneficial to smooth nasal feeding and convenient to operate.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. A nasal feeding infusion device, comprising:

an infusion tube (100);

a liquid supply device (200), wherein the liquid supply device (200) is connected with the infusion tube (100) so as to input nutrient solution into a patient through the infusion tube (100);

a heating device (300), wherein the heating device (300) is connected with the outer side wall of the infusion tube (100) to heat the nutrient solution passing through the infusion tube (100);

the method is characterized in that:

the heating device (300) is detachably connected with the infusion tube (100).

2. The nasal feeding infusion device of claim 1, wherein: the heating device (300) comprises a heating sleeve (400) sleeved outside the infusion tube (100), and an electric heating element (500) is arranged in the heating sleeve (400).

3. The nasal feeding infusion device of claim 2, wherein: the heating sleeve (400) is sleeved with a heat insulation sleeve (600).

4. The nasal feeding infusion device of claim 2, wherein: the circumferential inner wall of the heating sleeve (400) is in sealing fit with the infusion tube (100).

5. The nasal feeding infusion device of claim 4, wherein: at least one end of the inner side of the heating sleeve (400) is flaring.

6. The nasal feeding infusion device of claim 1, wherein: the heating device (300) comprises a heating shell (700) with a liquid storage cavity, an electric heating element (500) and heat conduction liquid are arranged in the liquid storage cavity, and the infusion tube (100) comprises a heated section (101) soaked in the heat conduction liquid and two transmission sections (102) respectively communicated with two ends of the heated section (101).

7. The nasal feeding infusion device of claim 6, wherein: the heating shell (700) is provided with a through hole (701), and the through hole (701) is used for the infusion tube (100) to penetrate through so as to adjust the length of the heated section (101).

8. The nasal feeding infusion device of claim 6, wherein: the heating shell (700) comprises a shell (702) with an open top and a shell cover (703) detachably connected with the shell (702), and the shell (702) and the shell cover (703) enclose to form the liquid storage cavity.

9. The nasal feeding infusion device of claim 7, wherein: the heating shell (700) is a transparent heating shell (700).

10. The nasal feeding infusion device of claim 1, wherein: the liquid supply device (200) comprises a syringe (800) and a three-way pipe (900), wherein the three-way pipe (900) is provided with a connecting end (901) communicated with a nipple of the syringe (800), a liquid suction end (902) communicated with a nutrient solution source and an output end (903) communicated with the infusion tube (100), the liquid suction end (902) is connected with a first one-way valve (110), and the output end (903) is connected with a second one-way valve (120).