A multifunctional nasal feeding pump

Abstract

This invention relates to a multifunctional nasal feeding pump, comprising a housing, a support plate, a feeding device, and a grinding device; the feeding device includes a U-shaped frame, a flexible hose, a first rigid hollow tube, a second rigid hollow tube, a piston tube, a moving block, a third rigid hollow tube, a first through hole, a peristaltic component, and a first electronic telescopic rod; the grinding device includes a grinding housing and a feeding port thereon, a feeding pipe on the housing, a support on the U-shaped frame, a water inlet pipe on one side of the feeding pipe, a collar on the water inlet pipe, a sealing ring at the lower end of the water inlet pipe, a first spring fixed on the collar and the sealing ring, a water inlet hole on the side wall of the water inlet pipe, a water receiving pipe on the collar, a second electronic telescopic rod fixed on the collar and the support, a hollow rotating shaft at its center, a grinding disc at the upper end of the hollow rotating shaft, a first grinding cone surface on the grinding housing, and a second grinding cone surface on the grinding disc.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multifunctional nasal feeding pump. Background Technology

[0002] Enteral nutrition is a nutritional support method that provides metabolically necessary nutrients and other nutrients through the gastrointestinal tract. Enteral nutrition can be administered orally or via a catheter, with catheter-based administration typically using a nasogastric tube, nasoduodenal tube, nasojejunal tube, or gastrojejunostomy tube. In nutritional therapy, enteral nutrition should be the first choice whenever intestinal function permits. It provides an effective method of nutritional support for patients who cannot tolerate oral or parenteral nutrition and is an important means of nutritional therapy in all clinical departments.

[0003] For example, when using a nasogastric tube to administer nutrition to a patient, the nutrition is placed in a container, which is then connected to a feeding pump, as is the connection between the nasogastric tube and the feeding pump. Activating the feeding pump delivers the nutrient solution from the container to the patient's stomach. However, this feeding pump is limited in function, lacking the ability to administer medication or water via nasogastric feeding. When administering oral medications, the drugs must be crushed and dissolved before being aspirated into the nasogastric tube using a syringe. The same process is repeated when administering water, making the operation extremely cumbersome, time-consuming, and labor-intensive, significantly increasing the workload for medical personnel. Therefore, those skilled in the art have developed a multifunctional nasogastric feeding pump that, through innovation, mechanizes repetitive tasks, simplifies tedious work, and refines important tasks. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a multifunctional nasal feeding pump, including a housing, a support plate fixed inside the housing, a feeding device fixed on the support plate, and a grinding device on the feeding device; the feeding device includes a U-shaped frame fixed on the support plate, a flexible tube fitted to the inner wall of the U-shaped frame, a first rigid hollow tube fixedly connected to one end of the flexible tube and passing through and fixed on the housing and the U-shaped frame, a second rigid hollow tube fixedly connected to the other end of the flexible tube and fixed on the U-shaped frame, a piston tube fixed on the U-shaped frame, a movable block movably disposed in the piston tube, a third rigid hollow tube corresponding to the second rigid hollow tube and inserted into the piston tube at one end, a first through hole disposed on the movable block, a peristaltic component disposed on the side wall of the housing for material flow in the flexible tube, and a first electronic telescopic rod with both ends fixed on the movable block and the U-shaped frame respectively;

[0006] The grinding device includes a grinding housing fixedly mounted on a movable block, a feed inlet located at the top of the grinding housing, a feeding pipe corresponding to the feed inlet and fixedly mounted on the housing, a bracket fixedly mounted on a U-shaped frame, a water inlet pipe located on one side of the feeding pipe, a collar movably fitted onto the water inlet pipe, a sealing ring fixedly fitted onto the lower end of the water inlet pipe, a first spring fitted onto the water inlet pipe and fixed at both ends to the collar and the sealing ring respectively, a water inlet hole located on the side wall of the water inlet pipe, a water receiving pipe fixedly inserted into the collar at one end, and a water receiving pipe at both ends respectively. The device includes a second electronic telescopic rod fixed on the collar and bracket; a hollow rotating shaft with one end inserted into the grinding housing and located at its center; a grinding disc fixed at the upper end of the hollow rotating shaft; a liquid supply channel on the moving block; a cavity on the grinding disc; multiple second through holes evenly distributed in a ring on the grinding disc; a first grinding cone surface on the grinding housing; a second grinding cone surface on the grinding disc; a water pipe connected to a water tank; and a thermostat installed inside the water tank. The inner cavity of the hollow rotating shaft is connected to the liquid supply channel and the cavity.

[0007] Specifically, the peristaltic assembly includes a main shaft rotatably mounted on the outer casing, a geared disc fixedly mounted on the main shaft, a plurality of first clearance holes and a plurality of second clearance holes equidistantly and annularly distributed on the geared disc, a plurality of first slide rails corresponding one-to-one with the plurality of first clearance holes and fixedly mounted on the main shaft, a plurality of first sliders movably mounted on the plurality of first slide rails, a plurality of first straight rods with one end fixedly mounted on the plurality of first sliders, a first compression spring with both ends fixedly mounted on the first sliders and the first slide rails, a plurality of first sleeves rotatably mounted on the plurality of first straight rods, a plurality of guide rods equidistantly and annularly distributed and fixedly mounted on the main shaft, a plurality of second straight rods movably mounted on the plurality of guide rods, a plurality of second sleeves rotatably mounted on the plurality of second straight rods, a rubber belt wound around the plurality of first sleeves and the plurality of second sleeves, a second compression spring with both ends fixedly mounted on one end of the guide rod and the second straight rod, and a reduction motor fixedly mounted on the outer casing for driving the rotation of the main shaft.

[0008] Specifically, the peristaltic assembly further includes multiple rotating rods and a movable ring. The movable ring is movably mounted on the main shaft, and one end of each rotating rod is rotatably mounted on the first slider and the other end is rotatably mounted on the movable ring.

[0009] Specifically, the feeding device further includes a plurality of first limiting blocks disposed on one side of the hose and movably disposed on the U-shaped frame, a plurality of second limiting blocks disposed on the other side of the hose and movably disposed on the U-shaped frame, a second spring with its two ends respectively fixed on the first limiting blocks and the U-shaped frame, and a third spring with its two ends respectively fixed on the second limiting blocks and the U-shaped frame; the plurality of first limiting blocks are arranged in a ring at equal intervals, and the plurality of second limiting blocks are arranged in a one-to-one correspondence with the plurality of first limiting blocks.

[0010] Specifically, the grinding device further includes an annular cavity fixedly disposed at the bottom end of the grinding disc, a piston plate movably disposed within the annular cavity, a fixing ring fixedly disposed at both ends at the bottom of the piston plate and the grinding housing, a partition plate fixedly sleeved on the annular cavity, a plurality of third through holes evenly distributed in an annular pattern and disposed on one side wall of the annular cavity, a plurality of fourth through holes corresponding one-to-one with the plurality of third through holes and disposed on the other side wall of the annular cavity, a base plate fixedly sleeved on the hollow rotating shaft, a sealing plate located above the base plate and movably disposed on the annular cavity and the hollow rotating shaft, a fourth spring fixedly disposed at both ends on the sealing plate and the base plate, a first vent hole disposed on the fixing ring, and a second vent hole disposed on the side wall of the grinding housing.

[0011] Specifically, the grinding device further includes a second slide rail fixed on a U-shaped frame, a second slider movably mounted on the second slide rail, an extension rod fixed at one end on the second slider, an L-shaped slide seat movably sleeved on the extension rod, a first gear rotatably mounted on a support and meshing with a gear plate, an eccentric wheel coaxial with the first gear and fixed thereon, a connecting rod eccentrically rotatably mounted at one end on the eccentric wheel and rotatably mounted at the other end on the second slider, a toothed belt mounted on the support and meshing with the first gear, a first bevel gear rotatably mounted on the L-shaped slide seat, a second bevel gear fixed on a hollow rotating shaft and meshing with the first bevel gear, and a second gear coaxial with the first bevel gear and fixed thereon; the lower end of the hollow rotating shaft is rotatably mounted on the L-shaped slide seat.

[0012] The beneficial effects of this invention are:

[0013] The peristaltic component is activated, which unidirectionally compresses the tubing, causing the nutrient solution inside to flow in one direction. This ultimately delivers the nutrient solution from the container to the stomach. After a period of feeding, when it's time to administer water and medication, the required number of tablets is first added to the feeding tube. At this point, the feeding tube aligns with the inlet at the top of the grinding housing, allowing the tablets to fall into the grinding housing. The first electronic telescopic rod drives the moving block to move, misaligning the first through-hole with the second and third rigid hollow tubes. This connects one end of the liquid supply channel to the second rigid hollow tube, and the feeding tube and inlet are misaligned, aligning the inlet with the water inlet. The second electronic telescopic rod is activated, driving the collar to move towards the grinding housing. The first spring causes the water inlet to move as well, bringing the sealing ring into contact with the inlet and connecting the water inlet. Continuing to move, the first spring is compressed, causing the collar and water inlet to move relative to each other. The device moves to connect the water inlet to the water inlet pipe, and finally connects the water inlet pipe to the grinding housing, supplying water to the grinding housing. The peristaltic component is activated, squeezing the flexible tube in one direction while simultaneously causing the hollow shaft to rotate and move up and down. The hollow shaft drives the grinding disc to rotate and move up and down, grinding the tablets on the first and second grinding cone surfaces. The tablets are mixed with water while being ground, dissolving them in the water. The water containing the tablets is then introduced into the flexible tube through the second through-hole, cavity, and liquid supply channel, and finally injected into the patient's stomach. This design also cleans the inner wall of the gastric tube, greatly reducing the frequency of tube replacement. After medication is administered, the second electronic telescopic rod drives the collar to reset. Through the spring mechanism, the water inlet pipe is kept connected to the grinding housing, the water inlet is misaligned with the water inlet pipe, and the water inlet pipe is disconnected from the water inlet pipe. The rotation and up-and-down movement of the grinding disc improves grinding efficiency. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0015] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 for Figure 2 A sectional view of line AA in the diagram;

[0020] Figure 4 for Figure 3 A structural cross-sectional view of the BB line in the diagram;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the image;

[0022] Figure 6 for Figure 4 Enlarged view of point B in the image;

[0023] Figure 7 This is a schematic diagram of the peristaltic component.

[0024] Figure 8 This is a schematic diagram of the grinding device. Detailed Implementation

[0025] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0026] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0027] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0028] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Reference Figure 1-8As shown, the multifunctional nasal feeding pump of the present invention includes a housing 1, a support plate 2 fixed inside the housing, a feeding device 3 fixed on the support plate, and a grinding device 4 on the feeding device; the feeding device 3 includes a U-shaped frame 31 fixed on the support plate, a hose 32 attached to the inner wall of the U-shaped frame, a first rigid hollow tube 33 fixedly connected to one end of the hose and passing through and fixed on the housing and the U-shaped frame, a second rigid hollow tube 34 fixedly connected to the other end of the hose and fixed on the U-shaped frame, a piston tube 35 fixed on the U-shaped frame, a movable block 36 movably disposed in the piston tube, a third rigid hollow tube 37 corresponding to the second rigid hollow tube and inserted into the piston tube at one end, a first through hole 38 disposed on the movable block, a peristaltic component 39 disposed on the side wall of the housing for material flow in the hose, and a first electronic telescopic rod 310 fixed at both ends on the movable block and the U-shaped frame respectively.

[0031] The grinding device 4 includes a grinding housing 41 fixedly mounted on a movable block, a feed inlet 42 located at the top of the grinding housing, a feeding pipe 43 corresponding to the feed inlet and fixedly mounted on the housing, a bracket 44 fixedly mounted on a U-shaped frame, a water inlet pipe 45 located on one side of the feeding pipe, a collar 46 movably fitted onto the water inlet pipe, a sealing ring 47 fixedly fitted at the lower end of the water inlet pipe, a first spring 48 fitted onto the water inlet pipe and fixed at both ends to the collar and the sealing ring respectively, a water inlet hole 49 located on the side wall of the water inlet pipe, a water receiving pipe 410 fixedly inserted into the collar at one end, a second electronic telescopic rod 411 fixed at both ends to the collar and the bracket respectively, a hollow rotating shaft 412 inserted into the grinding housing at one end and located at its center, a grinding disc 413 fixedly located at the upper end of the hollow rotating shaft, a liquid supply channel 414 located on the movable block, and a grinding disc 413 located on the grinding housing. The invention includes a cavity 415 on the grinding disc, multiple second through holes 416 evenly distributed in a ring on the grinding disc, a first grinding cone surface 417 on the grinding housing, and a second grinding cone surface 418 on the grinding disc. A water pipe is connected to a water tank, and a thermostat is installed in the water tank to keep the warm water at 38-40 degrees Celsius. The inner cavity of the hollow rotating shaft is connected to the liquid supply channel and the cavity. A heater is installed in the container bottle to keep the nutrient solution inside warm. The invention also includes a timed and quantitative liquid injection device, which connects the water tank to the first rigid hollow tube. The specific structure is described in application number 201721229498.4, which is prior art and will not be described here. When the patient needs to be fed warm water through the nasogastric tube at regular intervals to maintain electrolyte balance, the timed and quantitative liquid injection device is activated to ensure the supply of water and flush the nasogastric tube to avoid mechanical blockage.

[0032] The first rigid hollow tube connects to the gastric tube, and the third rigid hollow tube connects to the container bottle. When feeding the patient, the second and third rigid hollow tubes simultaneously align with the first through-hole, activating the peristaltic mechanism. The peristaltic mechanism unidirectionally compresses the tubing, causing the nutrient solution inside to flow unidirectionally, ultimately delivering the nutrient solution from the container bottle to the stomach. After a period of time following feeding, when it is necessary to give the patient water and medication, the required number of tablets is first added to the feeding tube. At this time, the feeding tube and the grinding shell... The upper feed inlet aligns with the lower inlet, allowing the tablets to fall into the grinding housing through the feeding tube. The first electronic telescopic rod drives the moving block to move, misaligning the first through hole with the second and third rigid hollow tubes. This connects one end of the liquid supply channel to the second rigid hollow tube. The feeding tube is misaligned with the feed inlet, and the feed inlet aligns with the water inlet pipe. The second electronic telescopic rod is activated, driving the collar to move towards the grinding housing. A first spring causes the water inlet pipe to move as well, bringing the sealing ring into contact with the feed inlet, allowing water to enter. The tube connects to the feed inlet and continues to move, compressing the first spring and causing the collar and water inlet pipe to move relative to each other, connecting the water inlet hole to the water receiving pipe, and finally connecting the water receiving pipe to the grinding housing to supply water to the grinding housing. The peristaltic component is activated, squeezing the flexible tube in one direction, while the hollow shaft rotates and moves up and down reciprocally. The hollow shaft drives the grinding disc to rotate and move up and down reciprocally. The first and second grinding cones grind the tablets while mixing them with water, dissolving the tablets in the water. The water containing the tablets is then introduced into the flexible tube through the second through hole, cavity, and liquid supply channel, and finally injected into the patient's stomach. This setup also cleans the inner wall of the gastric tube, greatly reducing the frequency of tube replacement. After medication is administered, the second electronic telescopic rod drives the collar to reset. The spring mechanism keeps the water inlet pipe connected to the grinding housing, misaligns the water inlet hole with the water receiving pipe, and disconnects the water receiving pipe from the water inlet pipe. The rotation and reciprocating movement of the grinding disc improves grinding efficiency.

[0033] Specifically, the peristaltic assembly 39 includes a main shaft 391 rotatably mounted on the outer casing, a geared disc 392 fixedly sleeved on the main shaft, a plurality of first clearance holes 393 and a plurality of second clearance holes 3917 equidistantly and annularly distributed on the geared disc, a plurality of first slide rails 394 corresponding one-to-one with the plurality of first clearance holes and fixedly mounted on the main shaft, a plurality of first sliders 395 movably mounted on the plurality of first slide rails, a plurality of first straight rods 396 with one end fixedly mounted on the plurality of first sliders, a first compression spring 397 fixed at both ends on the first sliders and the first slide rails, and a plurality of first... The peristaltic assembly 39 comprises: a sleeve 398; multiple guide rods 399 equidistantly distributed in a ring and fixed at one end to the main shaft; multiple second straight rods 3910 movably mounted on the guide rods; multiple second sleeves 3911 rotatably mounted on the second straight rods; rubber strips 3912 wound around the first sleeves and the second sleeves; second compression springs 3913 fixed at both ends to one end of the guide rods and the second straight rods; and a geared motor 3914 fixed to the outer casing for driving the main shaft rotation. The geared motor is commercially available. The peristaltic assembly 39 also includes multiple rotating rods 3915 and a moving ring. 3916, the movable ring is movably mounted on the main shaft, one end of the rotating rod is rotatably mounted on the first slider and the other end is rotatably mounted on the movable ring; through the first and second compression springs, opposite forces are applied to the first and second straight rods, ultimately causing the rubber belt to be in a wavy state. The reduction motor drives the main shaft to rotate, which in turn drives the gear plate to rotate, simultaneously causing multiple first slide rails and multiple guide rods to rotate around the main shaft as the axis, making multiple first and second straight rods revolve around each other, facilitating unidirectional delivery of nutrient solution or water in the hose. The rubber belt reduces friction between the first straight rod and the hose. (The last sentence appears to be incomplete and possibly refers to a different configuration.) The friction between the first and second straight rods and the rubber belt is reduced, making operation smoother and improving the overall service life of the equipment. The rotating rod and moving ring design allow multiple first straight rods to move synchronously on the first slide rail, effectively ensuring consistent resistance between the rods and the hose, resulting in smoother delivery of nutrient solution or water. Furthermore, the aforementioned first and second compression springs ensure that when the internal pressure of the stomach increases due to the injection of nutrient solution, the delivery of nutrient solution stops once a certain amount is reached. This prevents the nutrient solution or water from flowing due to the resistance of the multiple first straight rods, thus achieving a self-adaptive function.

[0034] Specifically, the feeding device 3 further includes a plurality of first limiting blocks 311 disposed on one side of the hose and movably disposed on a U-shaped frame, a plurality of second limiting blocks 312 disposed on the other side of the hose and movably disposed on a U-shaped frame, a second spring 313 with both ends fixed to the first limiting blocks and the U-shaped frame respectively, and a third spring 314 with both ends fixed to the second limiting blocks and the U-shaped frame respectively; the plurality of first limiting blocks are arranged in a ring at equal intervals, and the plurality of second limiting blocks are arranged in a one-to-one correspondence with the plurality of first limiting blocks; the first limiting blocks and second limiting blocks can limit the hose to prevent the hose from moving and affecting the delivery of nutrient solution or water inside it. When the first straight rod passes through one of the first limiting blocks and second limiting blocks, it causes the first limiting block and second limiting block at that point to move, so that the first straight rod can pass through that point. Then, the second spring and third spring reset the first limiting block and second limiting block, and the two limit the hose again.

[0035] Specifically, the grinding device 4 further includes an annular cavity 419 fixedly disposed at the bottom end of the grinding disc, a piston plate 420 movably disposed within the annular cavity, a fixing ring 421 with its two ends fixedly disposed at the bottom of the piston plate and the grinding housing, a partition plate 422 fixedly sleeved on the annular cavity, a plurality of third through holes 423 equidistantly distributed in a ring on one side wall of the annular cavity, a plurality of fourth through holes 424 corresponding one-to-one with the plurality of third through holes and disposed on the other side wall of the annular cavity, a base plate 425 fixedly sleeved on the hollow rotating shaft, a sealing plate 426 located above the base plate and movably disposed on the annular cavity and the hollow rotating shaft, a fourth spring 427 with its two ends fixedly disposed on the sealing plate and the base plate, and a first ventilation hole 428 disposed on the fixing ring. A second vent 429 is provided on the side wall of the grinding housing; the water and tablet mixture enters the annular cavity through multiple third through holes, and exits the annular cavity through multiple fourth through holes. The water and tablet mixture discharged from the annular cavity enters the cavity through multiple second through holes, and the water and tablet mixture in the cavity enters the hose through the liquid supply channel; the piston plate and the fixed ring remain stationary, and when the grinding disc moves up and down, the annular cavity and the piston plate move back and forth relative to each other, so that the water and tablet mixture flowing through the third and fourth through holes is flushed, improving the mixing effect of water and tablet. The sealing plate and the fourth spring are set to play a good pressure stabilizing role. The sealing plate is stabilized through the first vent and the second vent, so that the sealing plate can move adaptively.

[0036] Specifically, the grinding device 4 further includes a second slide rail 430 fixed on a U-shaped frame, a second slider 431 movably mounted on the second slide rail, an extension rod 432 fixed at one end on the second slider, an L-shaped slide block 433 movably sleeved on the extension rod, a first gear 434 rotatably mounted on a support and meshing with a gear plate, an eccentric wheel 435 coaxial with the first gear and fixed thereon, a connecting rod 436 eccentrically rotatably mounted at one end on the eccentric wheel and rotatably mounted at the other end on the second slider, a toothed belt 437 mounted on the support and meshing with the first gear, a first bevel gear 438 rotatably mounted on the L-shaped slide block, a second bevel gear 439 fixed on a hollow rotating shaft and meshing with the first bevel gear, and a second gear 441 coaxial with the first bevel gear and fixed thereon; the lower end of the hollow rotating shaft is rotatably mounted on the L-shaped slide block; the gear plate drives the first… The rotation of the gear causes the eccentric wheel to rotate, which in turn drives the connecting rod to rotate. This causes the second slider to reciprocate on the second slide rail, enabling the hollow rotating shaft to move up and down. The first electronic telescopic rod drives the moving block to move. To move the grinding housing together, the L-shaped slide moves on the extension rod, causing the second gear on the first bevel gear to mesh with the toothed belt. The rotation of the first gear drives the toothed belt, which in turn drives the second gear to rotate. This causes the first bevel gear to drive the second bevel gear to rotate, which in turn drives the hollow rotating shaft to rotate. Ultimately, the grinding disc rotates and moves up and down simultaneously. The toothed belt ensures that when the L-shaped slide moves back and forth, driving the second gear to move back and forth, the toothed belt remains engaged with the second gear, providing transmission for the hollow rotating shaft. This configuration allows the first gear to ultimately drive the grinding disc to rotate, providing excellent acceleration and increasing the grinding disc's speed, thus further improving the efficiency of grinding the tablets.

[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A multifunctional nasal feeding pump, characterized in that: The device includes an outer shell (1), a support plate (2) fixed inside the outer shell, a feeding device (3) fixed on the support plate, and a grinding device (4) on the feeding device. The feeding device (3) includes a U-shaped frame (31) fixed on the support plate, a flexible tube (32) attached to the inner wall of the U-shaped frame, a first rigid hollow tube (33) fixedly connected to one end of the flexible tube and fixedly installed on the outer shell and the U-shaped frame, a second rigid hollow tube (34) fixedly connected to the other end of the flexible tube and fixedly installed on the U-shaped frame, a piston tube (35) fixedly installed on the U-shaped frame, a movable block (36) movably installed in the piston tube, a third rigid hollow tube (37) corresponding to the second rigid hollow tube and inserted into the piston tube at one end, a first through hole (38) on the movable block, a peristaltic component (39) installed on the side wall of the outer shell and used for material flow in the flexible tube, and a first electronic telescopic rod (310) fixed at both ends on the movable block and the U-shaped frame respectively. The grinding device (4) includes a grinding housing (41) fixedly mounted on a movable block, a feed inlet (42) located at the top of the grinding housing, a feeding pipe (43) corresponding to the feed inlet and fixedly mounted on the outer shell, a bracket (44) fixedly mounted on a U-shaped frame, a water inlet pipe (45) located on one side of the feeding pipe, a collar (46) movably fitted onto the water inlet pipe, a sealing ring (47) fixedly fitted onto the lower end of the water inlet pipe, a first spring (48) fitted onto the water inlet pipe and fixed at both ends to the collar and the sealing ring respectively, a water inlet hole (49) located on the side wall of the water inlet pipe, and a water receiving pipe (410) fixedly inserted into the collar at one end and at both ends. The equipment includes a second electronic telescopic rod (411) fixed on the collar and bracket respectively, a hollow rotating shaft (412) with one end inserted into the grinding housing and located at its center, a grinding disc (413) fixed at the upper end of the hollow rotating shaft, a liquid supply channel (414) on the moving block, a cavity (415) on the grinding disc, multiple second through holes (416) evenly distributed in a ring on the grinding disc, a first grinding cone surface (417) on the grinding housing, a second grinding cone surface (418) on the grinding disc, a water pipe connected to a water tank, and a thermostat installed in the water tank; the inner cavity of the hollow rotating shaft is connected to the liquid supply channel and the cavity.

2. The multifunctional nasal feeding pump according to claim 1, characterized in that: The peristaltic assembly (39) includes a main shaft (391) rotatably mounted on the outer casing, a geared disc (392) fixedly sleeved on the main shaft, a plurality of first clearance holes (393) and a plurality of second clearance holes (3917) equidistantly and annularly distributed on the geared disc, a plurality of first slide rails (394) corresponding one-to-one with the plurality of first clearance holes and fixedly mounted on the main shaft, a plurality of first sliders (395) movably mounted on the plurality of first slide rails, a plurality of first straight rods (396) with one end fixedly mounted on the plurality of first sliders, and a first compression spring (397) fixed at both ends on the first sliders and the first slide rails. Multiple first sleeves (398) rotatably mounted on multiple first straight rods, multiple guide rods (399) equidistantly distributed in a ring and fixed at one end on the main shaft, multiple second straight rods (3910) movably mounted on multiple guide rods, multiple second sleeves (3911) rotatably mounted on multiple second straight rods, rubber strips (3912) wrapped around multiple first sleeves and multiple second sleeves, second compression springs (3913) fixed at both ends on one end of the guide rods and the second straight rods, and a geared motor (3914) fixed on the outer casing and used to drive the rotation of the main shaft.

3. A multifunctional nasal feeding pump according to claim 2, characterized in that: The peristaltic assembly (39) further includes multiple rotating rods (3915) and a movable ring (3916). The movable ring is movably mounted on the main shaft. One end of each rotating rod is rotatably mounted on the first slider and the other end is rotatably mounted on the movable ring.

4. A multifunctional nasal feeding pump according to claim 1, characterized in that: The feeding device (3) further includes a plurality of first limiting blocks (311) disposed on one side of the hose and movably disposed on the U-shaped frame, a plurality of second limiting blocks (312) disposed on the other side of the hose and movably disposed on the U-shaped frame, a second spring (313) with its two ends respectively fixed on the first limiting blocks and the U-shaped frame, and a third spring (314) with its two ends respectively fixed on the second limiting blocks and the U-shaped frame; the plurality of first limiting blocks are arranged in a ring at equal intervals, and the plurality of second limiting blocks are arranged in a one-to-one correspondence with the plurality of first limiting blocks.

5. A multifunctional nasal feeding pump according to claim 1, characterized in that: The grinding device (4) further includes an annular cavity (419) fixedly disposed at the bottom of the grinding disc, a piston plate (420) movably disposed in the annular cavity, a fixing ring (421) fixedly disposed at both ends at the bottom of the piston plate and the grinding housing, a partition plate (422) fixedly sleeved on the annular cavity, a plurality of third through holes (423) equidistantly distributed in annular and disposed on one side wall of the annular cavity, a plurality of fourth through holes (424) corresponding one-to-one with the plurality of third through holes and disposed on the other side wall of the annular cavity, a base plate (425) fixedly sleeved on the hollow rotating shaft, a sealing plate (426) located above the base plate and movably disposed on the annular cavity and the hollow rotating shaft, a fourth spring (427) fixedly disposed at both ends on the sealing plate and the base plate, a first vent hole (428) disposed on the fixing ring, and a second vent hole (429) disposed on the side wall of the grinding housing.

6. A multifunctional nasal feeding pump according to claim 2, characterized in that: The grinding device (4) further includes a second slide rail (430) fixed on a U-shaped frame, a second slider (431) movably mounted on the second slide rail, an extension rod (432) fixed at one end on the second slider, an L-shaped slide (433) movably mounted on the extension rod, a first gear (434) rotatably mounted on a support and meshing with a gear plate, an eccentric wheel (435) coaxial with the first gear and fixed thereon, a connecting rod (436) rotatably mounted on the eccentric wheel at one end and rotatably mounted on the second slider at the other end, a toothed belt (437) mounted on the support and meshing with the first gear, a first bevel gear (438) rotatably mounted on the L-shaped slide, a second bevel gear (439) fixed on a hollow rotating shaft and meshing with the first bevel gear, and a second gear (441) coaxial with the first bevel gear and fixed thereon; the lower end of the hollow rotating shaft is rotatably mounted on the L-shaped slide.

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