A gastric tube nasal feeding medicine dissolving device

By designing a nasogastric tube feeding drug dissolution device with automatic stirring, heating, heat preservation, and drug addition mechanisms, the problems of low drug dissolution efficiency and pollution in existing technologies have been solved, realizing a rapid and pollution-free drug dissolution process and ensuring therapeutic efficacy and medication safety.

CN224585699UActive Publication Date: 2026-08-04THE SECOND AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE SECOND AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV
Filing Date
2025-06-04
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing methods for dissolving medications via nasogastric tube are inefficient, require time-consuming manual stirring, and are prone to contamination, affecting treatment efficacy and medication safety.

Method used

A nasogastric tube feeding drug dissolution device was designed, which includes an automatic stirring, heating and insulation mechanism, and a drug addition mechanism. It utilizes a peristaltic pump suction, a micro motor stirring, and an electric heating layer to achieve rapid drug dissolution and pollution-free operation.

Benefits of technology

It improves drug dissolution efficiency, ensures that the drug solution is not contaminated, and guarantees treatment efficacy and medication safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224585699U_ABST
    Figure CN224585699U_ABST
Patent Text Reader

Abstract

The utility model relates to medical appliance technical field, specifically disclose a kind of gastric tube nasal feeding medicine dissolving device, including base, and the positioning seat is equipped in base upside, and the vertical groove is equipped in positioning seat, and cup body is positioned and placed in groove, and the detachable cover is fixed in cup body top, and the vertical pipe is vertically installed in cover, and the suction pump mechanism matched with vertical pipe is equipped in base side edge, and the automatic stirring mechanism and heating insulation mechanism matched with cup body are equipped in positioning seat, and the medicine adding mechanism is equipped in cover. The utility model can realize the mixing operation of high efficiency, effectively improve the dissolving efficiency of gastric tube nasal feeding medicine, effectively avoid liquid medicine long time exposure in air at the same time, ensure treatment effect and medicine safety.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a nasogastric tube feeding drug dissolution device. Background Technology

[0002] In clinical practice, nasogastric tube feeding is an important means of maintaining nutrition and drug therapy for patients in a coma, with swallowing difficulties, or after gastrointestinal surgery. However, current methods for handling medications via nasogastric tube feeding have some drawbacks. The dissolution of medications mainly relies on manual stirring, which is inefficient. For example, for emergency medications requiring rapid dissolution (such as nitroglycerin tablets), traditional methods take an average of over 15 minutes, which is too inefficient. Furthermore, the open container during manual stirring exposes the medication to air for extended periods, making it susceptible to contamination and severely limiting treatment effectiveness and medication safety.

[0003] To address this issue, we propose a nasogastric tube feeding drug dissolution device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a nasogastric tube feeding drug dissolution device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A nasogastric tube feeding drug dissolution device includes a base, a positioning seat on the upper side of the base, a groove vertically provided on the positioning seat, a cup being positioned in the groove, a cover being detachably fixed to the top of the cup, a vertical tube being vertically installed on the cover, and a suction pump mechanism matching the vertical tube being provided on the side of the base.

[0007] The positioning base is equipped with an automatic stirring mechanism and a heating and heat preservation mechanism that match the cup body, while the lid is equipped with a drug addition mechanism.

[0008] Preferably, the lower half of the cup body is damped and inserted inside the groove, and the cross-sectional shape of the cup body is the same as that of the groove.

[0009] Preferably, the bottom of the vertical tube can abut against the inner bottom of the cup body, the bottom of the vertical tube is far from the center of the bottom of the cup body and has a notch on the edge, a sealing plug is slidably fitted on the vertical tube, the cover body has a through hole that matches the sealing plug, a corrugated sleeve is coaxially fixed on the top of the sealing plug, a sleeve block is coaxially fixed on one end of the corrugated sleeve, and the sleeve block is fixedly fitted on the vertical tube.

[0010] Preferably, the suction pump mechanism includes a peristaltic pump, which is fixedly connected to the base via a support frame. The peristaltic pump is matched with a suction hose, one end of which is provided with a connector for connection to a nasogastric tube, and the other end of which is detachably and fixedly connected to a vertical tube.

[0011] Preferably, the automatic stirring mechanism includes a motor installed inside the positioning seat, the motor being located at the bottom of the tank, the output shaft of the motor being fixed with a bar magnet, the bar magnet being arranged horizontally, and a magnetic rod being provided in the middle of the bottom of the cup body, the bar magnet being able to magnetically attract the magnetic rod.

[0012] Preferably, the heating and heat preservation mechanism includes an electric heating layer installed on the positioning seat, the electric heating layer being circumferentially fitted onto the side wall of the tank, and a temperature sensor being installed on the side wall of the tank.

[0013] Preferably, the drug addition mechanism includes a rubber layer disposed on the cover and a drug addition port, the drug addition port is fitted with a cap, and the inside of the drug addition port is sealed with a rubber membrane, the rubber membrane having a cross-shaped slit, and a liquid storage bottle is connected to the cover via a pipe.

[0014] Preferably, a weight sensor is also provided between the base and the positioning seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention effectively improves the dissolution efficiency of nasogastric tube feeding medications, enables flexible, hygienic, and pollution-free medication addition, achieves highly efficient mixing, and avoids prolonged exposure of the medication solution to air during mixing, ensuring that the medication solution is not contaminated and guaranteeing therapeutic efficacy and medication safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is the first axonometric drawing of this utility model;

[0019] Figure 2 This is the second axonometric drawing of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0022] Figure 5 This is a partial sectional view of the present invention.

[0023] In the diagram: 1. Base; 2. Positioning seat; 3. Tank; 4. Cup; 5. Cover; 6. Vertical tube; 7. Sealing plug; 8. Corrugated sleeve; 9. Sleeve block; 10. Peristaltic pump; 11. Suction hose; 12. Magnetic rod; 13. Electric heating layer; 14. Rubber layer; 15. Dosing port; 16. Storage bottle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Reference Figures 1-5 A nasogastric tube feeding drug dissolution device includes a base 1, which provides support and allows for stable placement on a horizontal platform. A positioning seat 2 is located on the upper side of the base 1, and a groove 3 is vertically mounted on the positioning seat 2. A cup 4 is positioned within the groove 3. The positioning seat 2 and the groove 3 are used to stably position and restrain the cup 4. (See details below.) Figure 4 A lid 5 is detachably fixed to the top of the cup body 4. A vertical tube 6 is vertically mounted on the lid 5, and a suction pump mechanism matching the vertical tube 6 is provided on the side of the base 1. An automatic stirring mechanism and a heating and heat preservation mechanism matching the cup body 4 are provided on the positioning seat 2, while a drug addition mechanism is provided on the lid 5. A weight sensor is also provided between the base 1 and the positioning seat 2. The interior of the cup body 4 is used for holding the liquid medicine and for mixing, stirring, heating, and heat preservation of the liquid medicine.

[0027] Those skilled in the art should know that when implementing the above technical solution, the cup body 4 is made of transparent material, and the cup body 4 can be made of glass or plastic.

[0028] Those skilled in the art should know that when implementing the above technical solution, the opening of the cover 5 and the cup 4 are fixed, and the cover 5 can be threaded or snapped to the cup 4.

[0029] Those skilled in the art should know that when implementing the above technical solution, the weight of the positioning seat 2, the cup body 4, and the cover 5 can be subtracted when the weight sensor measures the weight, and the weight of the liquid inside the cup body 4 can be detected. By detecting the weight of the liquid, the dosage and administration amount can be controlled.

[0030] As a technical optimization of this utility model, the lower half of the cup body 4 is damped and inserted inside the groove 3, and the cross-sectional shape of the cup body 4 is the same as that of the groove 3. The cup body 4 is cylindrical.

[0031] As a technical optimization of this utility model, the bottom of the vertical tube 6 can abut against the inner bottom of the cup body 4. The bottom of the vertical tube 6 is far from the center of the bottom of the cup body 4 and has a notch along its edge. A sealing plug 7 is coaxially slidably fitted on the vertical tube 6. The cover body 5 has a through hole that matches the sealing plug 7. The insertion of the sealing plug 7 into the through hole of the cover body 5 can ensure a sealing effect. A corrugated sleeve 8 is coaxially fixed to the top of the sealing plug 7. A sleeve block 9 is coaxially fixed to one end of the corrugated sleeve 8. The sleeve block 9 is fixedly fitted on the vertical tube 6. See the specific reference. Figure 3 The vertical tube 6 is used to assist in the suction of the medicine. After the sealing plug 7 is inserted and matched with the through hole of the cover 5, the vertical tube 6 can be pulled vertically upward by pulling the sleeve block 9. That is, the vertical tube 6 slides on the sealing plug 7. At this time, the bottom of the vertical tube 6 can be away from the bottom of the cup body 4. During the pulling process, the corrugated sleeve 8 unfolds to ensure that the part of the vertical tube 6 pulled out of the sealing plug 7 is not contaminated by the external environment.

[0032] As a technical optimization of this utility model, the suction pump mechanism includes a peristaltic pump 10, which is fixedly connected to the base 1 via a support frame. The peristaltic pump 10 is matched with a suction hose 11, one end of which has a connector for connection to a nasogastric tube, and the other end of which is detachably and fixedly connected to a vertical tube 6. The peristaltic pump 10 works in conjunction with the suction hose 11, which connects to the vertical tube 6. The lower end of the vertical tube 6 is positioned at the bottom of the cup body 4, and the bottom of the vertical tube 6 is away from the center of the bottom of the cup body 4 and has a notch along its edge. After the peristaltic pump 10 is started, it can stably suction the liquid inside the cup body 4.

[0033] Those skilled in the art should know that when implementing the above technical solution, the suction capacity of the peristaltic pump 10 depends entirely on the elastic rebound of the suction hose 11 after it is squeezed. That is, when the roller of the peristaltic pump 10 leaves, the volume of the suction hose 11 expands and generates negative pressure when it returns to its original state, like a 'miniature piston', thus achieving the pumping effect.

[0034] As a technical optimization of this utility model, the automatic stirring mechanism includes a motor installed inside the positioning seat 2. The motor is located at the bottom of the tank 3, and a bar magnet is fixed to the output shaft of the motor. The bar magnet is arranged horizontally, and a magnetic rod 12 is provided in the center of the bottom inside the cup body 4. The bar magnet can be magnetically attracted to the magnetic rod 12. The thickness of the bottom of the cup body 4 will not affect the magnetic attraction effect between the bar magnet and the magnetic rod 12.

[0035] Those skilled in the art should know that, in implementing the above technical solution, the motor is a micro motor model, such as the R300 series. The motor can be connected to the outside via a power cord. Starting the motor can drive the bar magnet to rotate, and the bar magnet drives the magnetic rod 12 inside the cup body 4 to rotate, achieving a rotational stirring effect. See [specific reference] for details. Figure 5 .

[0036] As a technical optimization solution of this utility model, please refer to the following: Figure 5 The heating and heat preservation mechanism includes an electric heating layer 13 mounted on the positioning seat 2. The electric heating layer 13 is circumferentially fitted onto the side wall of the tank 3, and a temperature sensor is also installed on the side wall of the tank 3. The electric heating layer 13 can heat the cup 4 and the liquid inside the cup 4, and can maintain the temperature after it is set. The temperature sensor is used to monitor the temperature in real time.

[0037] Those skilled in the art should know that when implementing the above technical solution, the electric heating layer 13 is heated by an electric heating wire or graphene, and the temperature sensor is a TR21-B from the WIKA series.

[0038] As an optimized technical solution of this utility model, the drug addition mechanism includes a rubber layer 14 and a drug addition port 15 disposed on the cover 5. The drug addition port 15 is fitted with a cap, and a rubber membrane is provided inside the drug addition port 15 for sealing. The rubber membrane has cross-shaped slits. The drug addition port 15 is used to add solid drugs, such as dispersible tablets, sustained-release tablets, etc. The drug can be squeezed in through the cross-shaped slits on the rubber membrane. The rubber membrane and cross-shaped slits can prevent foreign objects from accidentally entering the body, thus providing a hygienic protection effect. The rubber layer 14 can be inserted by the syringe needle to add liquid drugs, which also ensures cleanliness and hygiene. A liquid storage bottle 16 is also connected to the cover 5 through a pipe, which extends to the bottom of the liquid storage bottle 16. The liquid storage bottle 16 is also equipped with a cap, and the pipe is installed on the cap. Opening the cap allows for the addition of liquid to the liquid storage bottle 16. The liquid storage bottle 16 can hold liquids, such as glucose solution or water. The liquid storage bottle 16 is connected to the inside of the cup body 4 through the pipe, which ensures that the infusion is not affected by external factors and effectively ensures hygiene.

[0039] In this invention, the working principle of the device is as follows:

[0040] The cup body 4 is placed inside the groove 3 of the positioning seat 2. A magnetic rod 12 is pre-placed inside the cup body 4, and the upper cover 5 is fixed in place. Then, the sealing plug 7 is inserted into the through hole of the cover 5, the vertical tube 6 is inserted into the cup body 4, and the suction tube 11 is connected to the vertical tube 6. Solid drugs, such as dispersible tablets and sustained-release tablets, can be added through the drug addition port 15. The drug can be squeezed in through the cross-shaped slits on the rubber membrane. The rubber membrane and cross-shaped slits can prevent foreign objects from accidentally entering the body, providing a hygienic protection effect. The rubber layer 14 can be inserted by the syringe needle to add liquid drugs, which also ensures cleanliness and hygiene. The liquid storage bottle 16 is connected to the cover 5 through a pipe, that is, it is connected to the inside of the cup body 4. The pipe can be used for infusion, and it ensures that the infusion is not affected by the outside, effectively ensuring hygiene. The liquid storage bottle 16 is replaceable, and the liquid storage bottle 16 can store the relevant liquid as needed.

[0041] When the liquid in the storage bottle 16 needs to be used, such as when it is necessary to stir and dissolve solid drugs, the vertical tube 6 can be pulled vertically upward by pulling the sleeve block 9. That is, the vertical tube 6 slides on the sealing plug 7. At this time, the bottom of the vertical tube 6 can be away from the bottom of the cup body 4. During the pulling process, the corrugated sleeve 8 unfolds to ensure that the part of the vertical tube 6 pulled out of the sealing plug 7 is not contaminated by the external environment. Then, the peristaltic pump 10 is started. The peristaltic pump 10 acts on the suction hose 11 to achieve the pumping effect. At this time, a negative pressure space is formed inside the cup body 4, so the liquid inside the storage bottle 16 can be sucked into the cup body 4 through the pipe. Since the vertical tube 6 rises a certain distance, the liquid will not be pumped out through the vertical tube 6. In the above process, the connector of the suction hose 11 is not connected to the nasogastric tube.

[0042] After adding liquid to the cup 4 as described above, stirring can begin. Before stirring, the electric heating layer 13 preheats the cup 4 and the liquid inside. During stirring, the motor starts, driving the bar magnet to rotate. The bar magnet drives the magnetic rod 12 inside the cup 4 to rotate, achieving a stirring effect. By controlling the heating temperature and stirring speed, the solid tablets can be dissolved quickly. Compared to manual stirring, this method is more efficient and cleaner. When nasogastric feeding is required, the lower end of the vertical tube 6 is placed against the bottom of the cup 4, and the connector of the suction tubing 11 is connected to the feeding tube. The peristaltic pump 10 is then activated to pump the liquid. The mixed liquid enters the feeding tube through the vertical tube 6 and suction tubing 11, ultimately reaching the patient's stomach. The peristaltic pump 10 controls the dosage, effectively completing the treatment. This process effectively prevents the medication from being exposed to air for extended periods, ensuring the medication remains uncontaminated and guaranteeing both treatment effectiveness and medication safety.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gastric tube nasogastric medicine dissolving device comprising a base (1), characterized in that, The base (1) is provided with a positioning seat (2) on the upper side, and a groove (3) is provided vertically on the positioning seat (2). A cup (4) is positioned in the groove (3). A cover (5) is detachably fixed on the top of the cup (4). A vertical tube (6) is installed vertically on the cover (5). A suction pump mechanism matching the vertical tube (6) is provided on the side of the base (1). The positioning seat (2) is equipped with an automatic stirring mechanism and a heating and heat preservation mechanism that match the cup body (4), while the lid (5) is equipped with a drug addition mechanism; The bottom of the vertical tube (6) can abut against the inner bottom of the cup body (4). The bottom of the vertical tube (6) is far from the center of the bottom of the cup body (4) and has a notch on the edge. A sealing plug (7) is slidably fitted on the vertical tube (6). A through hole matching the sealing plug (7) is provided on the cover (5). A corrugated sleeve (8) is fixedly fixed on the top of the sealing plug (7) on the same axis. A sleeve block (9) is fixedly fixed on one end of the corrugated sleeve (8) on the same axis. The sleeve block (9) is fixedly fitted on the vertical tube (6).

2. The gastric tube nasogastric medicine dissolving device according to claim 1, characterized in that, The lower half of the cup (4) is damped and inserted inside the groove (3), and the cross-sectional shape of the cup (4) is the same as that of the groove (3).

3. The gastric tube nasogastric medicine dissolving device according to claim 1, characterized in that, The suction pump mechanism includes a peristaltic pump (10), which is fixedly connected to the base (1) via a support frame. The peristaltic pump (10) is matched with a suction hose (11), one end of which is provided with a connector for connecting to a nasogastric tube, and the other end of which is detachably fixedly connected to a vertical tube (6).

4. The gastric tube nasogastric medicine dissolving device according to claim 1, characterized in that, The automatic stirring mechanism includes a motor installed inside the positioning seat (2), the motor is located at the bottom of the tank (3), the output shaft of the motor is fixed with a bar magnet, the bar magnet is arranged horizontally, and a magnetic rod (12) is provided in the middle of the bottom inside the cup (4), the bar magnet can be magnetically attracted to the magnetic rod (12).

5. The gastric tube nasogastric medicine dissolving device according to claim 1, characterized in that, The heating and heat preservation mechanism includes an electric heating layer (13) installed on the positioning seat (2). The electric heating layer (13) is circumferentially attached to the side wall of the tank (3). A temperature sensor is also installed on the side wall of the tank (3).

6. The gastric tube nasogastric medicine dissolving device according to claim 1, characterized in that, The drug addition mechanism includes a rubber layer (14) on the cover (5) and a drug addition port (15). The drug addition port (15) is fitted with a cap and a rubber membrane is provided inside the drug addition port (15). The rubber membrane has a cross-shaped slit. The cover (5) is also connected to a liquid storage bottle (16) through a pipe.

7. The gastric tube nasogastric feeding drug dissolving device according to claim 1, characterized in that, A weight sensor is also provided between the base (1) and the positioning seat (2).