Enteral nutrition feeding device

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an enteral nutrition feeding device which comprises a mounting base, a furling part is fixedly connected to the upper portion of the mounting base, a liquid supply part is clamped and fixed to the furling end of the furling part, the liquid supply part is connected with a pipeline retained in the intestines of a patient through a connecting pipe, and a nutrient solution is stored in the liquid supply part; the upper part of the mounting base is rotationally connected with a fixing part, the fixing part can fix the liquid supply part in the mounting base, and the liquid supply part fixed by the fixing part is wound by the winding part, so that a nutrient solution in the liquid supply part is extruded into the body of a patient. Accurate and stable flow infusion is achieved through mechanical rolling and pressing, a multi-roller staggered structure is used for cooperative pressurization and efficient backflow prevention, and a three-dimensional heating field is matched for maintaining the appropriate temperature of a nutrient solution; and meanwhile, the modularized liquid supply part is matched with an automatic alignment and locking mechanism, so that the operation is extremely simple, convenient and rapid.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to an enteral nutrition feeding device. Background Technology

[0002] Enteral nutrition support is an important means of clinical treatment, especially for patients with basically normal gastrointestinal function but unable to eat a sufficient amount orally, which can maintain their nutritional status and improve clinical outcomes.

[0003] Currently, the most commonly used enteral nutrition delivery methods in clinical practice mainly rely on gravity dripping or electric peristaltic pumps.

[0004] Gravity dripping utilizes the static pressure difference generated by the suspension height of the nutrient solution bag, allowing the liquid to slowly flow into the patient's body through the tubing by gravity. Although this method is simple in structure and low in cost, its infusion rate is easily affected by changes in the liquid level inside the bag, making it difficult to maintain a stable flow rate. At the same time, for viscous nutrient solutions, the infusion resistance increases, which can easily lead to tubing blockage or insufficient flow, failing to meet the needs of precise feeding.

[0005] Electric peristaltic pumps use a motor-driven roller to alternately squeeze an elastic pump tube, generating directional peristaltic waves to propel the liquid. This method can achieve a certain degree of flow control, but its flow accuracy is greatly affected by the elasticity of the pump tube material, the degree of wear, and the viscosity of the liquid. Long-term use is prone to performance degradation due to pump tube fatigue.

[0006] In addition, existing feeding devices generally lack effective active heating functions, and the infusion of low-temperature nutrient solutions can easily cause gastrointestinal discomfort in patients, such as abdominal distension, diarrhea, and intestinal spasms, affecting tolerance. In terms of preventing backflow, they also rely on additional external stop clamps or valves, which are cumbersome to operate and pose a risk of misoperation. Summary of the Invention

[0007] The purpose of this invention is to provide an enteral nutrition feeding device that can achieve precise and stable flow delivery through mechanical rolling and pressing, utilize a multi-roller staggered structure for synergistic pressurization and efficient backflow prevention, and maintain a suitable temperature for the nutrient solution with a three-dimensional heating field; at the same time, the modular liquid supply unit, combined with an automatic alignment and locking mechanism, makes operation extremely simple and quick.

[0008] The specific technical solution adopted by this invention is as follows: An enteral nutrition feeding device includes a mounting base, a winding part fixedly connected to the upper part of the mounting base, a liquid supply part clamped and fixed at the winding end of the winding part, the liquid supply part being connected to a tube remaining in the patient's intestine via a connecting tube, the liquid supply part storing nutrient solution inside, and a fixing part rotatably connected to the upper part of the mounting base, the fixing part being able to fix the liquid supply part inside the mounting base, the winding part winding up the liquid supply part fixed by the fixing part, so that the nutrient solution inside the liquid supply part is squeezed into the patient's body; The winding section includes a drive motor, a drive base, a limiting base, a fixed base, an extrusion base, an extrusion wheel, and an elastic extrusion member. The drive motor is fixedly connected to the interior of the mounting base, and the drive base is fixedly connected to the output end of the drive motor. The limiting base is fixedly disposed inside the mounting base, and the interior of the limiting base is rotatably connected to both ends of the drive base. The fixed base is rotatably connected to the upper end of the drive base. The extrusion base is slidably disposed inside the mounting base, and the extrusion wheel is rotatably connected to the interior of the extrusion base. The elastic extrusion member is disposed between the extrusion base and the mounting base.

[0009] In a preferred embodiment, after the fixed seat is rotated and assembled with the upper end of the drive seat, the fixed seat and the drive seat can form a cylindrical winding shaft.

[0010] In a preferred embodiment, the limiting seat has a positioning hole inside that is adapted to fit the fixed seat and the drive seat after assembly, and the upper end of the positioning hole has an open groove that cooperates with the fixed seat.

[0011] In a preferred embodiment, the extension direction of the extrusion wheel contacts the fixed seat in the open state.

[0012] In a preferred embodiment, the liquid supply unit includes a fixing plate, a liquid storage bag, and a lower support plate. The fixing plate is fixed between a fixing seat and a drive seat. The upper end of the liquid storage bag is fixedly connected to the lower end of the fixing plate, and the lower support plate is fixedly connected to the lower end of the liquid storage bag.

[0013] In a preferred embodiment, the lower part of the fixing plate is provided with a positioning groove, which cooperates with the interior of the drive seat.

[0014] In a preferred embodiment, the fixing part includes a flip cover, a pressure seat, an elastic pressure member, a squeeze roller, a support seat, and a support roller. One end of the flip cover is rotatably connected to the upper part of the mounting base. The pressure seat is slidably disposed inside the flip cover. The elastic pressure member is disposed between the pressure seat and the flip cover. Three squeeze rollers are rotatably disposed at the lower end of the pressure seat. The support seat is fixedly connected to the interior of the mounting base and is perpendicular to the pressure seat. Two support rollers are rotatably disposed at the upper end of the support seat.

[0015] In a preferred embodiment, the lower end of the pressure seat is provided with a protrusion, and a corresponding squeezing roller is rotatably arranged inside the protrusion, and the protrusion can be inserted between two support rollers.

[0016] In a preferred embodiment, the two additional rotatably connected compression rollers at the lower end of the pressure seat correspond to the support rollers that are closer to the nutrient solution in the storage bag.

[0017] In a preferred embodiment, the mounting base and flip cover are provided with a heating plate at the location of the liquid storage bag.

[0018] The technical effects achieved by this invention are as follows: This invention employs a method that precisely controls the rotational speed of a cylindrical winding shaft via a drive motor to generate a uniform, continuous, and linear squeezing effect on the flexible storage bag. This directly and stably converts the motor's rotational speed into the infusion flow rate, overcoming the shortcomings of traditional methods where the flow rate is easily affected by changes in liquid level, liquid viscosity, or pipeline elasticity. Simultaneously, the precision pressure mechanism composed of multiple interlaced rollers in the fixing section forms an adjustable local pressure field downstream of the storage bag, which not only works in conjunction with the main winding action to improve drainage efficiency but also reduces drug residue. The roller pressing design within the fixing part of this invention forms a clamping structure by inserting the protrusion between the two support rollers, creating a high-resistance area in the flow channel. This acts as an internal mechanical check valve, effectively preventing the risk of nutrient solution backflow and patient aspiration. Simultaneously, the double-sided heating plates integrated into the mounting base and the inside of the flip cover form a three-dimensional surrounding heating field, which can quickly and evenly heat the nutrient solution and maintain it at a suitable temperature close to the human body temperature, avoiding symptoms such as intestinal spasms, diarrhea, and abdominal distension caused by the infusion of low-temperature fluids. The liquid supply unit of this invention adopts a modular design. The positioning groove at the bottom of the fixing plate and the protrusion inside the drive seat form a key-and-keyway rigid fitting structure, which allows the liquid supply unit to be automatically pushed in along this guide during installation, thereby automatically achieving accurate positioning and circumferential error prevention, completely avoiding reverse installation or misalignment. At the same time, the extrusion wheel set on the extrusion seat always maintains contact and pressure on the fixed seat in the open state. When the liquid storage bag is placed in place, the continuous pressure can automatically guide the fixed seat to rotate and close until it is assembled with the drive seat into a complete cylindrical winding shaft, realizing a one-step operation of push-in and lock. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall opening of an embodiment of the present invention; Figure 3 This is an exploded view of the entire embodiment of the present invention. Figure 4 This is an overall side sectional view of an embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 Schematic diagram at point A in the middle; Figure 6 This is an embodiment of the present invention. Figure 4 Schematic diagram at point B in the middle; Figure 7This is a schematic diagram of the fixed base being opened at the drive base according to an embodiment of the present invention; Figure 8 This is a side sectional view of the fixing seat at the drive seat in an embodiment of the present invention; Figure 9 This is a schematic diagram of the liquid supply section according to an embodiment of the present invention; Figure 10 This is an exploded view of the fixing part in an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Mounting base; 2. Winding section; 201. Drive motor; 202. Drive seat; 203. Limit seat; 204. Fixing seat; 205. Extrusion seat; 206. Extrusion roller; 207. Elastic extrusion component; 3. Liquid supply section; 301. Fixing plate; 302. Liquid storage bag; 303. Lower support plate; 4. Fixing section; 401. Flip-top cover; 402. Pressure seat; 4021. Protrusion; 403. Elastic extrusion component; 404. Extrusion roller; 405. Support seat; 406. Support roller. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0025] Please see Figures 1 to 10As shown, the present invention provides an enteral nutrition feeding device, including a mounting base 1, a winding part 2 fixedly connected to the upper part of the mounting base 1, a liquid supply part 3 clamped and fixed at the winding end of the winding part 2, the liquid supply part 3 being connected to a tube retained in the patient's intestine through a connecting tube, the liquid supply part 3 storing nutrient solution inside, a fixing part 4 rotatably connected to the upper part of the mounting base 1, the fixing part 4 being able to fix the liquid supply part 3 inside the mounting base 1, the liquid supply part 3 being fixed by the fixing part 4 being wound up by the winding part 2, so that the nutrient solution inside the liquid supply part 3 is squeezed into the patient's body; The winding section 2 includes a drive motor 201, a drive base 202, a limiting base 203, a fixed base 204, a pressing base 205, a pressing wheel 206, and an elastic pressing element 207. The drive motor 201 is fixedly connected to the interior of the mounting base 1, the drive base 202 is fixedly connected to the output end of the drive motor 201, the limiting base 203 is fixedly disposed inside the mounting base 1, and the interior of the limiting base 203 is rotatably connected to both ends of the drive base 202. The fixed base 204 is rotatably connected to the upper end of the drive base 202. The pressing base 205 is slidably disposed inside the mounting base 1, the pressing wheel 206 is rotatably connected to the interior of the pressing base 205, and the elastic pressing element 207 is disposed between the pressing base 205 and the mounting base 1.

[0026] Specifically, when the drive motor 201 starts, the output shaft of the drive motor 201 drives the drive seat 202, which is fixedly connected to it, to rotate. The two ends of the drive seat 202 are supported and constrained by the limit seat 203 to ensure that its rotation is smooth. The upper end of the liquid supply part 3 can be clamped between the drive seat 202 and the openable fixed seat 204. When the fixed seat 204 and the drive seat 202 are closed and spliced, a cylindrical winding shaft is formed. The drive motor 201 drives this shaft to rotate, and the flexible liquid supply part 3 is gradually wound around the winding shaft. As the liquid supply part 3 is continuously wound, its volume is mechanically compressed by the fixed part 4, so that the nutrient solution in the liquid supply part 3 is stably squeezed out through the outlet at the lower end of the liquid supply part 3 to the tube remaining in the patient's intestine to achieve feeding under pressure. Under the action of the elastic extruder 207, the extrusion seat 205 always tends to move towards the winding area, so that the extrusion roller 206 is in close contact with the surface of the wound liquid storage bag 302 or the open position of the fixed seat 204, ensuring tight winding of the liquid storage bag 302 during the winding process. Meanwhile, the pressure applied by the extrusion roller 206 towards the fixed seat 204 can be maintained even after the fixed seat 204 is manually opened. After the fixed seat 204 loses the pressure of manual operation, the extrusion roller 206 presses the fixed seat 204, causing the fixed seat 204 to rotate back to the state of being engaged with the drive seat 202, thereby achieving automatic clamping of the fixed seat 204.

[0027] Please see Figure 5As shown, after the fixed seat 204 rotates and assembles with the upper end of the drive seat 202, the fixed seat 204 and the drive seat 202 can form a cylindrical winding shaft; When the drive motor 201 drives the drive seat 202 to rotate, the winding force on the flexible liquid storage bag 302 is applied evenly and continuously. The cylindrical shape avoids local stress concentration on the liquid storage bag 302 caused by the winding process, thus ensuring that the flow rate of the nutrient solution squeezed out is highly stable, improving the comfort and safety of the infusion process.

[0028] Please see Figure 5 and Figure 8 As shown, the limiting seat 203 has a positioning hole inside that is adapted to fit the fixed seat 204 and the drive seat 202 after being assembled, and the upper end of the positioning hole has an open groove that cooperates with the fixed seat 204. The positioning hole that fits the assembled cylindrical take-up shaft provides a full-circumferential matching hole for the drive seat 202 and the fixed seat 204, ensuring that the rotation axis of the take-up shaft remains fixed and stable during equipment operation. The open slot at the upper end of the positioning hole is not a complete circular hole, but provides a physical channel for opening, closing and removing the fixing plate 301 from the fixing seat 204. When changing the nutrient solution bag, it is necessary to control the drive seat 202 to rotate the fixing seat 204 to the open slot before the fixing seat 204 can be rotated. This allows the fixing seat 204 to be easily opened from the working position, realizing the rapid loading or unloading of the fixing plate 301, which greatly facilitates the clinical operation of medical staff.

[0029] Please see Figure 5 and Figure 8 As shown, the extension direction of the extrusion wheel 206 is in contact with the fixed seat 204 in the open state; The operator only needs to place the liquid storage bag 302 in place and push it gently. The squeezing wheel 206 contacts and guides the fixed seat 204 to automatically complete the closing action of the fixed seat 204. The fixed seat 204, after completing the closing action, can fix the fixed plate 301 inside the drive seat 202, thereby realizing the automatic fixation of the fixed seat 204.

[0030] Please see Figure 9As shown, the liquid supply unit 3 includes a fixing plate 301, a liquid storage bag 302, and a lower support plate 303. The fixing plate 301 is fixed between the fixing seat 204 and the drive seat 202 to ensure that the rotational torque of the drive motor 201 can be transmitted to the entire liquid supply unit 3 through the fixing seat 204 and the winding shaft formed by the drive seat 202. The upper end of the liquid storage bag 302 is fixedly connected to the lower end of the fixing plate 301. The liquid storage bag 302 is a flexible plastic container. The lower support plate 303 is fixedly connected to the lower end of the liquid storage bag 302. The lower support plate 303 serves as a winding end marker and an auxiliary force point. The rigid structure of the lower support plate 303 provides a clear termination reference and the final force point for the winding shaft at the end of the winding process, which helps to completely empty the liquid storage bag 302. At the same time, it prevents the soft bag bottom from slipping or winding unevenly in the final stage, ensuring that the squeezing action is completely completed. The upper and lower ends of the liquid storage bag 302 are connected to the fixing plate 301 and the lower support plate 303 respectively to form a winding path, so that the liquid storage bag 302 bears uniform pressure during the winding and squeezing process, avoiding stress concentration points that may be generated by local gripping or pulling of the liquid storage bag 302, and greatly reducing the risk of the liquid storage bag 302 rupturing or leaking at the seal during the pressure process.

[0031] Please see Figure 5 , Figure 9 and Figure 8 As shown, a positioning groove is provided at the lower part of the fixing plate 301, and the positioning groove cooperates with the interior of the drive seat 202; When the drive seat 202 rotates, the drive seat 202 mainly applies torsional shear force to the fixed plate 301. The engagement of the protrusion and the positioning groove forms a rigid shear-resistant interface between the key and the keyway, avoiding the risk of slippage that may occur if only clamping friction is relied upon.

[0032] Please see Figure 2 , Figure 3 , Figure 6 , Figure 8 and Figure 10 As shown, the fixing part 4 includes a flip cover 401, a pressure seat 402, an elastic pressure member 403, a squeeze roller 404, a support seat 405, and a support roller 406. One end of the flip cover 401 is rotatably connected to the upper part of the mounting base 1. The pressure seat 402 is slidably disposed inside the flip cover 401. The elastic pressure member 403 is disposed between the pressure seat 402 and the flip cover 401. Three squeeze rollers 404 are rotatably disposed at the lower end of the pressure seat 402. The support seat 405 is fixedly connected to the interior of the mounting base 1, and the support seat 405 is perpendicularly corresponding to the pressure seat 402. Two support rollers 406 are rotatably disposed at the upper end of the support seat 405.

[0033] When the flip cover 401 is closed, the pressure seat 402 inside slides downward under the push of the elastic pressure member 403, driving the three extrusion rollers 404 to press down synchronously. The extrusion rollers 404 and the two support rollers 406 fixed on the base intersect spatially, so that the liquid storage bag 302 passing through this area is forcibly squeezed and bent, thereby applying pressure to the inside of the liquid storage bag 302 during the winding process, causing the nutrient solution inside the liquid storage bag 302 to be squeezed and moved.

[0034] Please see Figure 3 , Figure 6 and Figure 10 As shown, the lower end of the pressure seat 402 is provided with a protrusion 4021, and a corresponding squeezing roller 404 is rotatably arranged inside the protrusion 4021, and the protrusion 4021 can be inserted between two support rollers 406. The protrusion 4021 carries a squeezing roller 404 that is precisely inserted into the gap between two fixed support rollers 406 below. This creates an area where the rollers interlock along the path of the liquid storage bag 302. The squeezing roller 404 and the support rollers 406 on both sides work together to form a three-point clamping and squeezing of the liquid storage bag 302, which significantly enhances the local compression effect and forms a clear throat in the flow channel. This greatly increases the resistance to reverse flow of liquid, thus providing a mechanical anti-backflow mechanism to prevent the nutrient solution from flowing back.

[0035] Please see Figure 6 As shown, the other two rotatingly connected squeezing rollers 404 at the lower end of the pressure seat 402 correspond to the support rollers 406 near the nutrient solution direction of the storage bag 302. The gap between the two extrusion rollers 404 corresponds to the support roller 406 near the nutrient solution outflow direction, creating a pre-compression zone. Before flowing into the "main compression zone" where the nutrient solution is finally strongly compressed by the protrusion 4021, it is first subjected to moderate and gradual compression in this transition zone, thereby significantly improving the stability of the infusion flow rate and reducing pulsation and flow rate fluctuations.

[0036] Please see Figure 2 and Figure 3 As shown, the mounting base 1 and the flip cover 401 are equipped with heating plates at the position of the liquid storage bag 302. The heating plates on the bottom and top of both sides of the liquid storage bag 302 form a three-dimensional heat field, which can quickly and evenly heat the nutrient solution and maintain it at a suitable temperature close to the human body temperature. The warm nutrient solution is more in line with the physiological state of the human body and can effectively avoid feeding intolerance complications such as abdominal discomfort, intestinal spasm, and diarrhea caused by the infusion of low temperature fluids, thereby improving the patient's comfort.

[0037] The working principle of this invention is as follows: When the drive motor 201 is started, the output shaft of the drive motor 201 drives the drive seat 202, which is fixedly connected to it, to rotate. The two ends of the drive seat 202 are supported and constrained by the limiting seat 203 to ensure that its rotation is smooth. The upper end of the liquid supply part 3 can be clamped between the drive seat 202 and the openable fixed seat 204. When the fixed seat 204 and the drive seat 202 are closed and spliced, a cylindrical winding shaft is formed. The drive motor 201 drives this shaft to rotate, and the flexible liquid supply part 3 is gradually wound around the winding shaft. As the liquid supply part 3 is continuously wound, its volume is mechanically compressed by the fixed part 4, so that the nutrient solution in the liquid supply part 3 is stably squeezed out through the outlet at the lower end of the liquid supply part 3 to the tube remaining in the patient's intestine to achieve feeding under pressure. Under the action of the elastic extruder 207, the extrusion seat 205 always tends to move towards the winding area, so that the extrusion roller 206 is in close contact with the surface of the wound liquid storage bag 302 or the open position of the fixed seat 204, ensuring tight winding of the liquid storage bag 302 during the winding process. Meanwhile, the pressure applied by the extrusion roller 206 towards the fixed seat 204 can be maintained even after the fixed seat 204 is manually opened. After the fixed seat 204 loses the pressure of manual operation, the extrusion roller 206 presses the fixed seat 204, causing the fixed seat 204 to rotate back to the state of being engaged with the drive seat 202, thereby achieving automatic clamping of the fixed seat 204.

[0038] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. An enteral feeding device, comprising: The utility model provides a kind of liquid supply device, including installation base (1), the upper part of the installation base (1) is fixedly connected with winding part (2), the winding end of the winding part (2) is clamped and fixed with liquid supply part (3), the liquid supply part (3) is connected with the pipeline of patient intestinal retention by connecting pipe, the inside of the liquid supply part (3) is stored with nutrient solution, the upper part of the installation base (1) is rotatably connected with fixed part (4), the fixed part (4) can be fixed in the inside of installation base (1) with liquid supply part (3), by winding part (2) winding after being fixed with fixed part (4) liquid supply part (3), so that the nutrient solution inside the liquid supply part (3) is extruded to patient body; The winding part (2) includes a drive motor (201), a drive seat (202), a limiting seat (203), a fixed seat (204), an extrusion seat (205), an extrusion wheel (206) and an elastic extrusion piece (207), the drive motor (201) is fixedly connected with the inside of the installation base (1), the drive seat (202) is fixedly connected with the output end of the drive motor (201), the limiting seat (203) is fixedly arranged in the inside of the installation base (1), and the inside of the limiting seat (203) is rotatably connected with both ends of the drive seat (202), the fixed seat (204) is rotatably connected with the upper end of the drive seat (202), the extrusion seat (205) is slidably arranged in the inside of the installation base (1), the extrusion wheel (206) is rotatably connected with the inside of the extrusion seat (205), and the elastic extrusion piece (207) is arranged between the extrusion seat (205) and the installation base (1).

2. An enteral feeding device according to claim 1, wherein: The fixed seat (204) is rotatably combined with the upper end of the drive seat (202), and the fixed seat (204) and the drive seat (202) can form a cylindrical winding shaft.

3. An enteral feeding device according to claim 1, wherein: The inside of the limiting seat (203) is provided with a positioning hole matched with the combined fixed seat (204) and drive seat (202), and an open slot matched with the fixed seat (204) is formed in the upper end of the positioning hole.

4. An enteral feeding device according to claim 1, wherein: The extrusion wheel (206) is in contact with the fixed seat (204) in the extended direction and the open state.

5. An enteral feeding device according to claim 1, wherein: The liquid supply part (3) includes a fixed plate (301), a liquid storage bag (302) and a lower supporting plate (303), the fixed plate (301) is fixed between the fixed seat (204) and the drive seat (202), the upper end of the liquid storage bag (302) is fixedly connected with the lower end of the fixed plate (301), and the lower supporting plate (303) is fixedly connected with the lower end of the liquid storage bag (302).

6. An enteral feeding device according to claim 5, wherein: The lower part of the fixed plate (301) is provided with a positioning slot matched with the inside of the drive seat (202).

7. An enteral feeding device according to claim 5, wherein: Said fixed part (4) includes a turnover cover (401), a pressing seat (402), an elastic pressing piece (403), extrusion rollers (404), a supporting seat (405) and supporting rollers (406), one end of the turnover cover (401) is rotationally connected with the upper portion of the mounting base (1), the pressing seat (402) is slidingly arranged inside the turnover cover (401), the elastic pressing piece (403) is arranged between the pressing seat (402) and the turnover cover (401), the extrusion rollers (404) are rotationally arranged at three positions at the lower end of the pressing seat (402), the supporting seat (405) is fixedly connected with the inside of the mounting base (1), and the supporting seat (405) is vertically corresponding to the pressing seat (402), and the supporting rollers (406) are rotationally arranged at two positions at the upper end of the supporting seat (405).

8. An enteral feeding device according to claim 7, wherein: The lower end of the pressing seat (402) is provided with a protruding portion (4021), corresponding extrusion rollers (404) are rotationally arranged inside the protruding portion (4021), and the protruding portion (4021) can be inserted between the two supporting rollers (406).

9. An enteral feeding device according to claim 7, wherein: The two other rotationally connected extrusion rollers (404) at the lower end of the pressing seat (402) are corresponding to the supporting rollers (406) close to the direction of the nutrient solution of the liquid storage bag (302).

10. An enteral feeding device according to claim 7, wherein: The mounting base (1) and the turnover cover (401) are provided with electric heating plates at positions of the liquid storage bag (302).

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