Automatic stomach tube food suction and injection device

Abstract

The utility model relates to an automatic stomach tube food suction and injection device which comprises a base, a food injection needle cylinder and a food suction and injection driving mechanism are installed on the base, and the rear end of a pintle of the food injection needle cylinder is connected with the food suction and injection driving mechanism. The food sucking and injecting device is characterized in that the food sucking and injecting device further comprises a food sucking and injecting switcher and a food box, the food sucking and injecting switcher is provided with a first connector capable of sucking and outputting liquid food, a second connector only capable of sucking the liquid food in one direction and a third connector only capable of outputting the liquid food in one direction; the first connector is connected with a nipple at the front end of the food injection needle cylinder through a first connecting pipe, the second connector is connected with the food box through a second connecting pipe, and the third connector is connected with the rear end of the stomach tube. The constant-temperature liquid food heat preservation device is simple and ingenious in structure, reasonable in design, capable of achieving automatic suction and output of liquid food, easy to operate, free of falling risk, capable of achieving active constant-temperature heat preservation of the liquid food, good in heat preservation effect and comfortable to use by a patient.

Description

Technical Field

[0001] The utility model relates to an automatic gastric tube feeding device, belonging to the technical field of medical equipment. Background Art

[0002] Indwelling nasogastric tube placement is a treatment method in which a nasogastric tube is inserted into the stomach through the nasal cavity. It is typically used for patients undergoing certain surgeries, those with dysphagia, neuromuscular disorders, inflammatory bowel disease, and coma. One of the main purposes of an indwelling nasogastric tube placement is to provide nutritional support and medication. Since these patients cannot eat on their own, an indwelling nasogastric tube can provide them with necessary nutrition and medication.

[0003] When inserting a nasogastric tube for feeding, care should be taken not to inject too much or too quickly, as this can easily cause discomfort and regurgitation. The current common method of feeding involves first drawing up the liquid food with a syringe (a large syringe), then connecting the syringe to the tube and forcefully pushing the syringe's piston rod to inject the liquid food into the patient's stomach. However, due to the viscosity of liquid food and the relatively thin inner diameter of the tube (the commonly used 16-gauge tube for adults has an inner diameter of 5.3 mm, and those for children are even thinner), pushing the syringe is very strenuous, and the feeding process can be lengthy, placing significant physical and psychological strain on the patient and their family. Furthermore, poor control of force during feeding can lead to inconsistent feeding speeds, causing discomfort to the patient. Furthermore, during feeding, the temperature of the liquid food (optimal temperature is 38-40°C) gradually decreases. This temperature drop not only causes discomfort to the patient but also increases its viscosity, further increasing the intensity and difficulty of feeding.

[0004] In order to solve the above problems, a large number of medical staff have conducted many related researches. For example, the Chinese utility model patent with application number CN202220216061.1 discloses a gastric tube feeding device, which includes a base and a feeding device. A baffle is fixedly installed on one side of the base, a circular hole is opened in the middle of the baffle, an electric push rod is fixedly installed on the upper part of the base, and a push plate is fixedly installed on one end of the telescopic end of the electric push rod. Two groups of rectangular grooves are opened on the upper part of the base, and a heat preservation cover is fixedly installed inside the two groups of rectangular grooves. A second heat preservation cotton is fixedly attached to the inner wall of the heat preservation cover; the needle of the feeding device passes through the baffle and is fixedly connected to a connecting tube, one end of the connecting tube is fixedly connected to the gastric tube, and a clamp is clamped on the outer wall of the connecting tube, and the clamp is fixedly installed on the outer wall of the connecting tube by bolts. The gastric tube feeding device saves time and effort, reduces the psychological pressure of family members and nurses during the feeding process, prevents the feeding speed caused by poor finger strength, and effectively prevents the gastric tube and the feeding device from falling off.

[0005] However, research has found that this gastric tube feeding device cannot automatically aspirate liquid food. Each time liquid food is loaded, the gastric tube must be disconnected to aspirate the food first, and then reconnected. This is not only cumbersome, but also carries a high risk of the tube and feeder becoming detached. Furthermore, the heat preservation function passively slows down the cooling of the liquid food through the heat shield, failing to achieve active constant-temperature insulation. Therefore, this application proposes an automated gastric tube feeding device. Summary of the Invention

[0006] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide an automated gastric tube feeding device, which has a simple and ingenious structure and a reasonable design, can realize the automatic suction and output of liquid food, is easy to operate and has no risk of falling off, and can also realize active constant temperature insulation of liquid food, has a good insulation effect, and is comfortable for patients to use.

[0007] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0008] An automated gastric tube feeding device comprises a base, on which a feeding syringe and a feeding suction and injection drive mechanism are mounted, and the rear end of the needle plug of the feeding syringe is connected to the feeding suction and injection drive mechanism; the characteristic is that the feeding device also comprises a feeding suction and injection switcher and a food box, the feeding suction and injection switcher is provided with a first interface capable of inhaling and outputting liquid food, a second interface capable of only one-way inhalation of liquid food, and a third interface capable of only one-way output of liquid food, the first interface being connected to the front end nipple of the feeding syringe through a first connecting tube, the second interface being connected to the food box through a second connecting tube, and the third interface being connected to the rear end of the gastric tube.

[0009] As a further improvement of the present invention, the rear end of the needle bolt of the feeding syringe is connected to the feeding suction and injection drive mechanism through a claw; the claw includes a claw body and two hooks, the back of the claw body is connected to the feeding suction and injection drive mechanism, and the two hooks are installed at both ends of the claw body in a mirror-symmetrical manner through bolts. A slot is provided inside the hook for holding the push plate at the rear end of the needle bolt, and the slot is a structure with one side open and the other side closed.

[0010] As a further improvement of the present invention, a platform is installed on the top of the base through a bracket, and a syringe placement hole running left and right is opened at the lower part of the platform, and the feeding syringe is installed in the syringe placement hole; the feeding suction and injection drive mechanism adopts an electric push rod, which is installed in the upper part of the platform and arranged parallel to the feeding syringe. An L-shaped head is installed at the tail end of the telescopic rod of the electric push rod, and the L-shaped head is fixed to the back of the claw body by a bolt.

[0011] As a further improvement of the present invention, thermal insulation cotton is preferably pasted on the inner wall of the syringe placement hole.

[0012] As a further improvement of the present invention, a main cavity is provided inside the suction, injection and feeding switcher, and the first, second and third interfaces are arranged on the suction, injection and feeding switcher and the inner ends are all connected to the main cavity, the first interface is empty, an outside-to-inside one-way valve is installed in the second interface, and an inside-to-outside one-way valve is installed in the third interface.

[0013] As a further improvement of the present invention, a pressure monitor is installed on the pipeline between the nipple at the front end of the feeding syringe and the suction and injection switching device.

[0014] As a further improvement of the present invention, the pressure monitor adopts a digital pressure transmitter with digital display, overpressure alarm and output control functions.

[0015] As a further improvement of the present invention, a food box placement groove is provided on the base, and a heating device for heating and keeping the food box warm is provided in the food box placement groove.

[0016] As a further improvement of the present invention, the heating device adopts a temperature-adjustable water bath heating tube.

[0017] As a further improvement of the present invention, a battery for providing electrical energy to the electric components is installed inside the base.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1) The present invention is equipped with a food suction and injection switcher, a food box and a food suction and injection drive mechanism, which can cooperate with the food injection syringe to realize automatic suction and output of liquid food. It is not only simpler and more convenient to operate, but also has no risk of pipeline disconnection and falling off.

[0020] 2) The utility model provides a food box placement slot with a heating device, so that the liquid food can be kept warm at an active constant temperature; by improving the installation structure of the feeding syringe, the heat loss of the liquid food in the feeding syringe can be reduced, and the heat preservation effect is good, which is not only conducive to improving the patient's comfort, but also can prevent the liquid food from becoming viscous due to the decrease in temperature, greatly reducing the chance of tube blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure and connection of an embodiment of the present utility model.

[0022] Figure 2 This is a structural sectional view of the suction, injection and feeding switcher in an embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping claw in the embodiment of the present utility model.

[0024] Explanation of the reference numerals: 1-base, 2-suction and injection switch, 3-food box, 4-feeding syringe, 5-claw, 5.1-claw body, 5.2-hook, 5.2a-slot, 6-first connecting tube, 7-second connecting tube, 8-body, 9-electric push rod, 10-pressure monitor, 11-pressure monitor, 12-food box placement slot, 13-gastric tube, 14-bracket. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to specific drawings and embodiments. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, rather than all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0027] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0028] like Figures 1 to 3 As shown, the embodiment discloses an automated gastric tube feeding device, which is mainly composed of a base 1, a feeding suction and injection switch 2, a food box 3, a feeding syringe 4, a clamping claw 5, a first connecting tube 6, a second connecting tube 7, a platform 8, an electric push rod 9, a pressure monitor 11 and a food box placement slot 12.

[0029] like Figure 1 、 Figure 3As shown, the feeding syringe 4 and the feeding suction and injection driving mechanism are installed on the base 1, and the rear end of the needle bolt of the feeding syringe 4 is connected to the feeding suction and injection driving mechanism through a claw 5; the feeding suction and injection switcher 2 is provided with a main cavity 2a, and the feeding suction and injection switcher 2 is provided with a first interface 2b, a second interface 2c and a third interface 2d, all of which have inner ends connected to the main cavity 2a, wherein the first interface 2b is connected to the front end nipple of the feeding syringe 4 through a first connecting tube 6, and the first interface 2b is empty. The first interface 2b can inhale and output liquid food, and the second interface 2c is connected to the food box 3 through a second connecting tube 7. An outward-inward one-way valve 2e is installed in the second interface 2c, and the second interface 2c can only inhale liquid food in one direction; the third interface 2d is connected to the rear end of the gastric tube 13, and an inward-outward one-way valve 2f is installed in the third interface 2d, and the third interface 2d can only output liquid food in one direction.

[0030] like Figure 1 As shown, in this embodiment, a platform 8 is mounted on top of the base 1 via a bracket 14. A syringe placement hole extending left and right is defined at the bottom of the platform 8, and the feeding syringe 4 is mounted within the hole. The feeding drive mechanism utilizes an electric push rod 9, which is mounted within the top of the platform 8 and arranged parallel to the feeding syringe 4. The telescopic end of the electric push rod 9 is mounted with an L-shaped head 10, which is bolted to the claw 5. This arrangement allows the feeding syringe 4 to be mounted within the syringe placement hole, thereby reducing heat loss from the liquid food. To further enhance the thermal insulation effect of the syringe placement hole, thermal insulation cotton is preferably affixed to the inner wall of the syringe placement hole.

[0031] like Figure 1 、 Figure 2 As shown, in this embodiment, the claw 5 includes a claw body 5.1 and two hooks 5.2. The back of the claw body 5.1 is connected to the L-shaped head 10 by bolts. The two hooks 5.2 are installed at both ends of the claw body 5.1 by bolts in a mirror-symmetrical manner. A slot 5.2a for holding the rear end push plate of the needle bolt is provided inside the hook 5.2. The slot 5.2a is a structure with one side open and the other side closed.

[0032] like Figure 1 As shown, in this embodiment, a pressure monitor 11 is installed on the pipeline between the front end nipple of the feeding syringe 4 and the suction and injection switching device 2. Through this pressure monitor 11, the internal pressure of the pipeline when the device is inhaling or outputting liquid food can be observed in real time. When the pressure exceeds the normal range, the device can be shut down in time to ensure the safety of feeding. The pressure monitor 11 preferably adopts a digital pressure transmitter with digital display, overpressure alarm and output control functions. Such a digital pressure transmitter can display the pressure value in real time, which is convenient for medical staff to observe and is stable and reliable. When the alarm is triggered, the alarm light will flash to indicate. At the same time, it can also output current to directly or indirectly drive the suction and injection drive mechanism to start and stop.

[0033] like Figure 1 As shown, in this embodiment, the base 1 is provided with a food box placement slot 12, and a heating device for heating and keeping the food box 3 warm is provided in the food box placement slot 12 [conventional arrangement is sufficient, so it is not shown in the figure]. With this arrangement, the heating device can actively heat the food box 3 placed in the food box placement slot 12, so that the temperature of the liquid food in the food box 3 is constant, which not only helps to improve patient comfort, but also prevents the liquid food from becoming viscous due to temperature drop, greatly reducing the chance of tube blockage. Preferably, the heating device adopts a temperature-adjustable water bath heating tube, so that the food box 3 can be heated by water bath heating, making the temperature stability of the liquid food better, and the temperature can be adjusted according to the liquid food situation to improve its viscosity, providing convenience for liquid food infusion.

[0034] In this embodiment, the base 1 is internally mounted with a battery (not shown in the figure, as this arrangement can be conventionally employed). This battery is used to power the electrically powered components (such as the suction / infusion drive mechanism, pressure sensor, and heater), enabling the device to operate normally even without an external mains power source. The battery is preferably rechargeable. Alternatively, the suction / infusion switch 2 in this embodiment may utilize a conventional manual or electric reversing valve.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various variations and modifications are possible within the technical scope of the present invention. Any modifications, alterations, or equivalent substitutions made by a person skilled in the art based on the above description are considered to be within the scope of protection of the present invention.

Claims

1. An automated gastric tube feeding device, comprising a base (1), a feeding syringe (4) and a feeding suction and injection drive mechanism mounted on the base (1), wherein a rear end of a needle plug of the feeding syringe (4) is connected to the feeding suction and injection drive mechanism; and characterized in that: The feeding device further comprises a feeding switch (2) and a food box (3); the feeding switch (2) is provided with a first interface (2b) capable of inhaling and outputting liquid food, a second interface (2c) capable of only inhaling liquid food in one direction, and a third interface (2d) capable of only outputting liquid food in one direction; the first interface (2b) is connected to the front end nipple of the feeding syringe (4) via a first connecting tube (6); the second interface (2c) is connected to the food box (3) via a second connecting tube (7); and the third interface (2d) is connected to the rear end of the gastric tube (13).

2. The automated gastric tube feeding device according to claim 1, wherein: The rear end of the needle bolt of the feeding syringe (4) is connected to the feeding suction and injection drive mechanism via a claw (5); the claw (5) comprises a claw body (5.1) and two hooks (5.2); the back of the claw body (5.1) is connected to the feeding suction and injection drive mechanism; the two hooks (5.2) are mounted at both ends of the claw body (5.1) in a mirror-symmetrical manner via bolts; a slot (5.2a) for holding a push plate at the rear end of the needle bolt is provided inside the hook (5.2); the slot (5.2a) is a structure with one side open and the other side closed.

3. The automated gastric tube feeding device according to claim 2, wherein: A platform (8) is mounted on the top of the base (1) via a bracket (14); a syringe placement hole extending leftward and rightward is provided at the bottom of the platform (8); the feeding syringe (4) is mounted in the syringe placement hole; the feeding suction and injection drive mechanism adopts an electric push rod (9); the electric push rod (9) is mounted in the top of the platform (8) and is arranged parallel to the feeding syringe (4); an L-shaped head (10) is mounted on the rear end of the telescopic rod of the electric push rod (9); the L-shaped head (10) is fixedly connected to the back of the claw body (5.1) by bolts.

4. The automated gastric tube feeding device according to claim 3, wherein: Thermal insulation cotton is pasted on the inner wall of the syringe placement hole.

5. The automated gastric tube feeding device according to claim 1, wherein: The suction-injection-feeding switch (2) is provided with a main cavity (2a) therein; the first interface (2b), the second interface (2c) and the third interface (2d) are provided on the suction-injection-feeding switch (2) and their inner ends are all connected to the main cavity (2a); the first interface (2b) is empty; the second interface (2c) is provided with an outward-inward one-way valve (2e); and the third interface (2d) is provided with an inward-outward one-way valve (2f).

6. The automated gastric tube feeding device according to claim 1, wherein: A pressure monitor (11) is installed on the pipeline between the front end nipple of the feeding syringe (4) and the feeding suction and injection switcher (2).

7. The automated gastric tube feeding device according to claim 6, wherein: The pressure monitor (11) adopts a digital pressure transmitter with digital display, overpressure alarm and output control functions.

8. The automated gastric tube feeding device according to claim 1, wherein: The base (1) is provided with a food box placement groove (12), and a heating device for heating and keeping the food box (3) warm is provided in the food box placement groove (12).

9. The automated gastric tube feeding device according to claim 8, wherein: The heating device adopts a temperature-adjustable water bath heating tube.

10. The automated gastric tube feeding device according to any one of claims 1 to 9, characterized in that: A battery for providing electric energy to the electric components is installed inside the base (1).

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