Enteral nutrition infusion device with heating function

Abstract

The enteral nutrition infusion device with the heating function comprises a shell and an action mechanism arranged in the shell, an inner container pipe is axially arranged in the shell, the two ends of the inner container pipe are used for inputting and outputting a nutrient solution respectively, the outer side of the inner container pipe is sleeved with a heat exchange cylinder, and a heat exchange groove is formed in the inner side of the heat exchange cylinder in the circumferential direction in a surrounding mode; heating plates making contact with the wall of the heat exchange groove are axially inserted into the two ends of the heat exchange cylinder, a bag body which makes contact with the wall of the heat exchange groove and is located between the two heating plates is arranged in the heat exchange groove in the circumferential direction, a first material pipe and a second material pipe are arranged on the heat exchange cylinder, and the second material pipe is used for inputting a preset amount of water into the bag body. By arranging the shell, the inner container pipe, the heat exchange cylinder, the bag body, the action mechanism and the like, the device can be used for emergency under the condition of no power supply outdoors or power shortage of a storage battery, the heat assembly can be put into the bag body to make contact with water for an exothermic reaction only through simple operation, a nutrient solution flowing through the inner container pipe is preheated, the comfort of a patient during infusion is ensured, and the infusion efficiency is improved. And intestinal obstruction is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an enteral nutrition infuser with a heating function. Background Art

[0002] The statements herein only provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Enteral nutrition is a nutritional support method that provides nutrients and other various nutrients required for metabolism through the gastrointestinal tract. It depends on the duration, mental state, and gastrointestinal function. The routes of enteral nutrition include oral and transcatheter input. Among them, transcatheter input includes nasogastric tube, nasoduodenal tube, nasojejunal tube, and gastrostomy tube; enteral nutrition infusers are made of medical polymer materials and are divided into two types according to different infusion powers: gravity infusion type and pump infusion type, and each type is further divided into air inlet type and non-air inlet type.

[0004] When infusing fluids to patients in a low-temperature environment, preheating is required to prevent the cold nutrient solution from entering the intestine, which is likely to cause blockage.

[0005] However, most existing enteral nutrition infusers conduct heat on the nutrient solution flowing through them by means of electric heating. However, when the infuser is in an outdoor environment without power supply or the battery is out of power, it is impossible to preheat the nutrient solution before infusion. That is, in this case, for patients with infusion needs, it is impossible to preheat the nutrient solution in time before infusion, which will greatly affect the comfort of patients during infusion and is likely to cause intestinal blockage. Therefore, the present invention provides an enteral nutrition infuser with a heating function. Summary of the Invention

[0006] The main object of the present invention is to provide an enteral nutrition infuser with a heating function.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows: An enteral nutrition infuser with a heating function includes a housing and an operating mechanism disposed within the housing. An inner bile duct is axially disposed within the housing, and both ends of the inner bile duct are respectively for the input and output of the nutrient solution. A heat exchange cylinder is sleeved outside the inner bile duct.

[0008] A heat exchange groove is circumferentially formed on the inner side of the heat exchange cylinder, and heating plates axially inserted into both ends of the heat exchange cylinder and in contact with the groove wall of the heat exchange groove are provided.

[0009] A bladder that touches the groove wall of the heat exchange groove and is located between the two heating plates is circumferentially disposed within the heat exchange groove.

[0010] A first material pipe and a second material pipe are respectively arranged on the heat exchange cylinder. The second material pipe is used to input a predetermined amount of water into the bladder. A heat release component capable of reacting with water to release heat is accommodated in the first material pipe.

[0011] Wherein, after the two heating plates move away from each other in the axial direction of the inner bile duct, the actuating mechanism is used to drive the heat release component in the first material pipe into the bladder, so that the heat release component reacts with water to release heat, forcing the pressure in the bladder to increase, so that the two ends of the bladder in the axial direction respectively expand and extend along the extending directions of the two ends of the heat exchange groove in the axial direction.

[0012] Further, the actuating mechanism includes two support plates sleeved on the outside of the inner bile duct. The adjacent sides of the two support plates are respectively fixedly connected to the separating sides of the two heating plates. Link rods parallel to the axial direction of the inner bile duct are arranged on the adjacent sides of the two support plates.

[0013] The adjacent ends of the two link rods are fixed with a valve plate. Two first through openings for the valve plate to enter and exit are oppositely formed on the outer wall of the first material pipe.

[0014] When the two heating plates do not move away from each other, the two valve plates are located inside the first material pipe, and are hermetically abutted against each other to form a partition for blocking the connection between the bladder and the first material pipe. The heat release component is placed on top of the partition.

[0015] After the two heating plates move away from each other, the two valve plates are forced to move away from each other, restoring the communication state between the bladder and the first material pipe.

[0016] Furthermore, a lever is arranged on the top of each of the two support plates. Two second through openings for the lever to pass through and move are oppositely formed on the housing.

[0017] Further, a first cock is arranged at one end of the first material pipe away from the bladder, and a second cock is arranged at one end of the second material pipe away from the bladder.

[0018] Further, a first connector and a second connector respectively communicating with the inside of the bladder are fixed on the bladder. One end of the first connector away from the bladder is hermetically screwed with one end of the first material pipe close to the bladder, and one end of the second connector away from the bladder is hermetically screwed with one end of the second material pipe close to the bladder;

[0019] A first through hole for avoiding the first connector and a second through hole for avoiding the second connector are respectively formed on the outer wall of the heat exchange cylinder.

[0020] Furthermore, the heat exchange cylinder includes two cylinder sections. The two cylinder sections can move relative to each other in the axial direction of the inner bile duct. Insertion openings for the heating plates to be inserted are formed at the separating ends of the two cylinder sections.

[0021] On the near sides of the two cylinder sections, sub-grooves communicating with the corresponding sockets are circumferentially formed around, and a first sub-hole and a second sub-hole are respectively formed on the outer walls of the cylinder sections on the sides far from their sockets;

[0022] Wherein, when the near ends of the two cylinder sections are butted, the two sub-grooves are butted to form the heat exchange groove, the two first sub-holes are butted to form the first through hole, and the two second sub-holes are butted to form the second through hole;

[0023] A building block is arranged on the side of the heating plate far from the inner bile duct.

[0024] Furthermore, clamping rods are arranged on the near sides of the two cylinder sections, and clamping holes matched with the clamping rods are formed on the near sides of the two cylinder sections.

[0025] Furthermore, two convex blocks are oppositely arranged on the outer walls of the first connecting head and the second connecting head, and grooves clamped and matched with the convex blocks are formed on the hole walls of the first through hole and the second through hole.

[0026] Further, the heat release component includes a non-woven fabric bag made of a microporous breathable film and a water-permeable spherical gelatin layer. The non-woven fabric bag contains a raw material capable of undergoing an exothermic reaction with water, and the non-woven fabric bag is fixed in the gelatin layer.

[0027] Further, a shell cover is installed on one side of the shell, a liquid guide pipe and an infusion pipe are respectively installed at the two axial ends of the shell, the output end of the liquid guide pipe is connected to the input end of the inner bile duct, and the input end of the infusion pipe is connected to the output end of the inner bile duct.

[0028] The beneficial effects of the present invention are embodied in:

[0029] The enteral nutrition infusion device with a heating function of the present invention can be used as an emergency in the case of no power supply outdoors or lack of power in the storage battery by setting a shell, an inner bile duct, a heat exchange cylinder, a capsule body and an operating mechanism, etc. Only simple operation is required to put the heat component into contact with water in the capsule body for an exothermic reaction, so as to preheat the nutrient solution flowing through the inner bile duct, ensure the comfort of the patient during infusion, and avoid intestinal blockage.

[0030] In the enteral nutrition infusion device with a heating function of the present invention, the gelatin layer in the heat release component has a spherical structure, and the diameter of the spherical gelatin layer is greater than half of the maximum inner diameter length of the first material pipe. The advantage of such a design is that only when the near ends of the two valve plates are flush with the inner ends of the corresponding first through ports, can the heat release component enter the capsule body through the first material pipe, which can avoid the occurrence of the situation that the heat release component enters the capsule body by mistake on the support plate on one side of the misoperation. That is to say, in the present application, only when the two toggle levers are moved away from each other, can the heat release component be released into the capsule body in the first material pipe, improving the safety of emergency use.

[0031] The enteral nutrition infuser with a heating function according to the present invention has a heat exchange cylinder designed in a two-section structure, so that the heat exchange grooves and perforations can be combined or disassembled, and in cooperation with the use of the lever, the support plate and the lugs on the heating plate, and the longitudinal section of the bladder is in a ring-like structure with a notch, so that the whole bladder can be disassembled and replaced after the nutrient solution is infused, for the next use of the infuser. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the drawings:

[0033] Figure 1 is the three-dimensional structure diagram of the whole of the present invention;

[0034] Figure 2 is Figure 1 the partial structure diagram of the whole in, with the shell cover removed;

[0035] Figure 3 is Figure 2 the partial sectional structure diagram in (the bladder is in a non-deformed state, the valve plates are butted against each other to form a partition, and the heat exchange cylinder is an integral body);

[0036] Figure 4 is Figure 3 the enlarged structure diagram at A in;

[0037] Figure 5 is Figure 3 the enlarged structure diagram at B in;

[0038] Figure 6 is Figure 3 the partial sectional structure diagram in another state (the bladder is in an expanded and deformed state, the valve plates are separated from each other, and the heat exchange cylinder is an integral body);

[0039] Figure 7 is Figure 3 the partial sectional structure diagram in yet another state (the bladder is in an expanded and deformed state, the valve plates continue to separate, and the heat exchange cylinder is separated into two cylinder sections);

[0040] Figure 8 is Figure 3 the structure diagram of the bladder in a non-expanded and deformed state in;

[0041] Figure 9 is Figure 6 the structure diagram of the bladder in an expanded and deformed state in;

[0042] Figure 10 is Figure 7 the structure diagram of the cylinder section in;

[0043] Figure 11 is Figure 10Schematic structural diagram of the middle cylinder section from another perspective;

[0044] Figure 12 is Figure 10 Schematic cross-sectional structure diagram of the middle cylinder section;

[0045] Figure 13 is Figure 3 Schematic structural diagram of the middle support plate, heating plate and block from another perspective;

[0046] Figure 14 is Figure 3 Schematic cross-sectional structure diagram of the middle heat release component.

[0047] Explanation of reference numerals:

[0048] 1. Outer shell; 2. Shell cover; 3. Liquid guide pipe; 4. Inner bile duct; 5. Infusion pipe; 6. Heat exchange cylinder; 601. Cylinder section; 7. Socket; 8. Support plate; 9. Heating plate; 10. Heat exchange tank; 11. Bladder; 12. First material pipe; 13. Second material pipe; 14. First cock; 15. Second cock; 16. Lever; 17. Link; 18. Valve plate; 19. Block; 20. First connector; 21. First perforation; 22. Convex block; 23. Groove; 24. Second connector; 25. Second perforation; 26. First through port; 27. Card hole; 28. Card rod; 29. Second through port; 30. Non-woven fabric bag; 31. Gelatin layer; 32. Limit rod; 33. Limit hole. Detailed implementation manners

[0049] The present invention will be further described in detail below with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all of the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the invention without creative efforts shall fall within the scope of protection of the invention.

[0050] Please combine Figures 1 to 14 .

[0051] An enteral nutrition infuser with a heating function includes an outer shell 1 and an operating mechanism arranged inside the outer shell. The longitudinal section of the outer shell 1 is a shell structure similar to an ellipse.

[0052] An inner bile duct 4 is axially arranged inside the outer shell 1. The material of the inner bile duct 4 is a metal material with good thermal conductivity, which can make the nutrient solution heated evenly during the heating process, ensure that the nutrient solution is always in a constant temperature state, and at the same time, no harmful substances will be generated in the inner bile duct 4 due to heating during heating, ensuring that the components of the nutrient solution will not be damaged.

[0053] The two ends of the inner bile duct 4 are respectively for the input and output of nutrient solution. A heat exchange cylinder 6 is sleeved outside the inner bile duct 4, and the inner cylinder wall of the heat exchange cylinder 6 is in contact with the outer wall of the inner bile duct 4, so as to heat the nutrient solution flowing through the inner bile duct 4 by heat conduction.

[0054] An axially extending heat exchange groove 10 is circumferentially formed on the inner side of the heat exchange cylinder 6, and heating plates 9 in axial insertion contact with the groove wall of the heat exchange groove 10 are provided at both ends of the heat exchange cylinder 6.

[0055] The bending degree of the plate body of the heating plate 9 is adapted to the circumferential bending radian of the groove body of the heat exchange groove 10, so that the heating plate 9 can fit on the groove wall of the heat exchange groove 10 to ensure effective heat conduction to the nutrient solution flowing through the inner bile duct 4.

[0056] A bladder 11 that touches the groove wall of the heat exchange groove 10 and is located between the two heating plates 9 is circumferentially arranged in the heat exchange groove 10. The longitudinal section of the bladder 11 is a ring-like structure with a notch, and the bladder 11 can be made of elastic rubber material.

[0057] A first material pipe 12 and a second material pipe 13 are respectively arranged on the heat exchange cylinder 6. The second material pipe 13 is used to input a predetermined amount of water into the bladder 11. The amount of water input into the bladder 11 can be determined according to actual needs, but it is necessary to ensure that the temperature of the input water is normal temperature, preferably twenty to twenty-five degrees Celsius.

[0058] A heat release component that can react with water to release heat is accommodated in the first material pipe 12.

[0059] Wherein, when the two heating plates 9 move away from each other axially on the inner bile duct 4, the action mechanism is used to drive the heat release component in the first material pipe 12 into the bladder 11, so that the heat released after the heat release component reacts with water forces the pressure in the bladder 11 to increase, so that the two axial ends of the bladder 11 respectively extend axially along the extending directions of the two axial ends of the heat exchange groove 10.

[0060] In specific implementation, when it is necessary to heat the nutrient solution flowing through the inner bile duct 4, conventionally, it is achieved by the heating plate 9 conducting electricity to generate heat and then conducting heat to the inner bile duct 4.

[0061] However, when the user is in an environment without power supply or with a dead battery (unable to supply electrical energy to the heating plate 9), but urgently needs to heat the nutrient solution for emergency use, a predetermined amount of water is input into the bladder 11 through the second material pipe 13 (the amount of water is ensured to just make the outer wall of the bladder 11 fit closely with the wall of the heat exchange tank 10). Then, the second material pipe 13 is closed. At this time, only by controlling the two heating plates 9 to move away from each other axially in the inner bile duct 4, under the driving action of the action mechanism, the heat release component in the first material pipe 12 can be put into the bladder 11. After the heat release component contacts and reacts with water, heat is released. The generated heat can conduct heat to the nutrient solution in the inner bile duct 4. At the same time, the heat release will increase the pressure in the bladder 11, so that both ends of the bladder 11 axially expand and extend along the extension directions of both ends of the heat exchange tank 10 axially, increasing the contact area between the bladder 11 and the wall of the heat exchange tank 10, so as to increase the contact area during heat exchange and improve the heat conduction efficiency and rate of the nutrient solution.

[0062] The advantage of such a design is that on the basis of the original structure of the infusion device, certain improvements are made, breaking the original idea. Through simple operations, the infusion device can be used to heat the nutrient solution without power supply, avoiding cold liquid from entering the patient's intestinal tract and ensuring the comfort of the patient.

[0063] It should be noted that an electric controller (not shown in the figure) for controlling the heating of the heating plate 9 and a battery (not shown in the figure) or an electric plug (not shown in the figure) for providing electrical energy for the heating operation of the heating plate 9 are provided on the outer shell 1. Since the control method and power supply method of the heating plate 9 are prior arts, the present application will not elaborate on them too much.

[0064] In addition, the specific structure of the heat release component in the present application is that the heat release component includes a non-woven fabric bag 30 made of a microporous breathable membrane and a gelatin layer 31 that is water-permeable and spherical. The non-woven fabric bag contains raw materials that can react with water to release heat, and the non-woven fabric bag is fixed in the gelatin layer. When the heat release component contacts water, the water can pass through the micropores of the gelatin layer 31 and the non-woven fabric bag 30 to contact the raw materials, and then a heat release reaction occurs.

[0065] The components of the main heat-generating agent in the raw materials include, but are not limited to, calcium oxide, aluminum powder, and iron powder. The components of the auxiliary heat-generating and regulating agent include, but are not limited to, sodium carbonate, salt, and activated carbon. The safety and structural materials include, but are not limited to, diatomaceous earth.

[0066] Among them, calcium oxide reacts with water to form calcium hydroxide and releases a large amount of heat. Aluminum powder reacts with an alkaline solution to form sodium aluminate and hydrogen, further releasing heat. Iron powder forms a primary battery reaction with activated carbon, salt, and water, accelerating heat generation through redox reactions. Sodium carbonate reacts with calcium hydroxide to form calcium carbonate precipitate and sodium hydroxide, adjusting the pH value of the reaction system and assisting the continuous reaction of metal powder. Activated carbon and diatomaceous earth act as adsorbents, promoting the full contact of reactants and evenly releasing heat. Diatomaceous earth can also absorb trace amounts of water to prevent premature failure of quicklime.

[0067] In one embodiment, the actuating mechanism includes two support plates 8 slidably sleeved outside the inner bile duct 4, and the two support plates 8 can move relative to each other in the axial direction of the inner bile duct 4.

[0068] The closer sides of the two support plates 8 are fixedly connected to the farther sides of the two heating plates 9 respectively. Link rods 17 parallel to the axial direction of the inner bile duct 4 are arranged on the closer sides of the two support plates 8.

[0069] The closer ends of the two link rods 17 are fixed with a valve plate 18. Two first through ports 26 for the valve plate 18 to enter and exit are oppositely opened on the outer wall of the first material pipe 12.

[0070] When the two heating plates 9 do not move away from each other, the two valve plates 18 are located inside the first material pipe 12 and are hermetically abutted against each other to form a partition (not marked) for blocking the communication between the bladder 11 and the first material pipe 12, and the heat release component is placed on top of the partition.

[0071] When the two heating plates 9 move away from each other, the two valve plates 18 are forced to move away from each other, restoring the communication state between the bladder 11 and the first material pipe 12.

[0072] During specific implementation, initially (when the two heating plates 9 do not move away from each other), the two valve plates 18 are both located in the first material pipe 12. The two valve plates 18 are hermetically abutted against each other to form a partition for blocking the communication between the bladder 11 and the first material pipe 12, and the heat release component is placed on top of the partition.

[0073] When the two heating plates 9 move away from each other, the two valve plates 18 will be driven to move away from each other through the link rods 17 until the distance between the two valve plates 18 is greater than the maximum diameter of the spherical gelatin layer 31 in the heat release component. At this time, the gelatin layer 31 in the heat release component can enter the bladder 11 to contact water and participate in the heat release reaction. After the two heating plates 9 move away from each other, the valve plates 18 move out of the first through ports 26, enabling the bladder 11 to communicate with the outside through the first material pipe 12 to relieve the pressure of the bladder 11 to a certain extent (it is necessary to ensure that the relieved pressure does not affect the expansion and extension of the bladder 11 in the heat exchange tank 10), avoiding risks such as explosion due to excessive expansion of the bladder 11 during the heat release reaction.

[0074] The advantage of such a design is that it can conveniently and efficiently achieve the feeding and release of the exothermic component in the first material pipe 12 into the bladder 11, and can also increase the heat exchange contact area by extending the bladder 11 along the axial direction of the heat exchange tank 10 during heat release, so as to improve the heat conduction efficiency and effect, and avoid the explosion risk of excessive expansion of the bladder 11.

[0075] It should be noted that a sealing rubber layer (not shown in the figure) is arranged inside the first through port 26. When the valve plate 18 is inserted into the first through port 26, it can achieve a sealing effect between the valve plate 18 and the first through port 26, and can avoid the water in the bladder 11 from contacting the exothermic component when the valve plates 18 are docked to form a partition.

[0076] It is worth mentioning that in this application, it is stipulated that the diameter of the spherical gelatin layer 31 in the exothermic component is greater than half of the maximum inner diameter length of the first material pipe 12. The advantage of such a design is that only when the adjacent ends of the two valve plates 18 are flush with the inner ends of the corresponding first through ports 26, can the exothermic component be allowed to enter the bladder 11 through the first material pipe 12, which can avoid the situation that the exothermic component accidentally enters the bladder 11 on the side of the support plate 8 due to misoperation. That is to say, in this application, only by operating the two toggle levers 16 to move away from each other can the feeding and release of the exothermic component in the first material pipe 12 into the bladder 11 be realized, improving the use safety.

[0077] In one embodiment, toggle levers 16 are arranged on the tops of both support plates 8, and two second through ports 29 for the toggle levers 16 to pass through and move are oppositely opened on the housing 1.

[0078] This can facilitate the operator to adjust the relative position of the support plate 8 in the axial direction of the inner bile duct 4 through the toggle lever 16. The second through port 29 not only makes way for the movement of the toggle lever 16, but also keeps the inside of the housing 1 in air communication with the outside, so as to cooperate with the first through port 26 when relieving pressure.

[0079] In one embodiment, a first stopcock 14 is arranged at one end of the first material pipe 12 away from the bladder 11, and a second stopcock 15 is arranged at one end of the second material pipe 13 away from the bladder 11. The first stopcock 14 is hermetically connected to the first material pipe 12 by screwing, and the second stopcock 15 is hermetically connected to the second material pipe 13 by screwing.

[0080] In this way, the feeding and closing of the first material pipe 12 and the second material pipe 13 can be realized through the first stopcock 14 and the second stopcock 15. In specific applications, by unscrewing the first stopcock 14, the exothermic component is placed on the partition in the first material pipe 12 for subsequent emergency heating use. By unscrewing the second stopcock 15, the water is input before the bladder 11 expands, and the water in the bladder 11 is quickly discharged after the heating ends.

[0081] In one embodiment, a first connector 20 and a second connector 24 that are internally connected to the bladder 11 are respectively fixed on the bladder 11. One end of the first connector 20 away from the bladder 11 is hermetically screwed to one end of the first material pipe 12 close to the bladder 11, and one end of the second connector 24 away from the bladder 11 is hermetically screwed to one end of the second material pipe 13 close to the bladder 11.

[0082] The advantage of such a design is that it facilitates the disassembly and assembly operations between the bladder 11, the first material pipe 12, and the second material pipe 13.

[0083] A first through hole 21 for avoiding the first connector 20 and a second through hole 25 for avoiding the second connector 24 are respectively formed on the outer wall of the heat exchange cylinder 6.

[0084] Through the first through hole 21 and the second through hole 25, it is convenient for the first connector 20 and the second connector 24 to protrude from the outer wall of the heat exchange cylinder 6 and then be respectively docked with the first material pipe 12 and the second material pipe 13.

[0085] In one embodiment, the heat exchange cylinder 6 includes two cylinder sections 601. The two cylinder sections 601 can move relative to each other in the axial direction of the inner bile duct 4. The heat exchange cylinder 6 is designed as two separable cylinder sections 601 to facilitate the docking and splitting of the heat exchange cylinder 6.

[0086] Sockets 7 for inserting the heating plates 9 are formed at the separated ends of the two cylinder sections 601. The heating plates 9 are inserted into the heat exchange grooves 10 through the sockets to contact the walls of the heat exchange grooves 10.

[0087] Sub-grooves (not labeled) are circumferentially formed around the adjacent sides of the two cylinder sections 601. First sub-holes (not labeled) and second sub-holes (not labeled) are respectively formed on the outer walls of the cylinder sections 601 away from their sockets 7.

[0088] Among them, when the adjacent ends of the two cylinder sections 601 are docked, the two sub-grooves are docked to form the heat exchange groove 10, the two first sub-holes are docked to form the first through hole 21, and the two second sub-holes are docked to form the second through hole 25.

[0089] A building block 19 is arranged on the side of the heating plate 9 away from the inner bile duct 4.

[0090] In a specific implementation, when the heat release by contacting with water through the heat release component ends, first open the second cock 15 to drain the water in the bladder 11 after the heat release ends, and then continue to move the two levers 16 away from each other, so that the two support plates 8 drive the corresponding heating plates 9 and building blocks 19 to move away from each other synchronously, so that the building block 19 drives the two cylinder sections 601 to separate from each other, and then the bladder 11 can be exposed, so that the bladder 11 with a similar annular structure having a notch in the longitudinal section can be removed from the inner bile duct 4 for replacement and maintenance for the next use.

[0091] The advantage of such a design is that the two-section design of the heat exchange cylinder 6 facilitates the efficient replacement of the bladder 11 after heat release for subsequent use.

[0092] It should be noted that when the latch block 19 does not press against the groove wall of the heat exchange groove 10 close to the adjacent support plate 8, to avoid the situation where the barrel section 601 of the heat exchange cylinder 6 moves synchronously with the heating plate 9 due to the influence of friction factors and damages the integrity of the heat exchange cylinder 6, two limiting rods 32 are inserted radially relative to each other on the outer shell 1 in this application, and limiting holes 33 that are inserted and matched with the corresponding limiting rods 32 are opened on the outer walls of the two barrel sections 601.

[0093] Thus, when the heating plate 9 moves in the heat exchange groove 10, as long as the latch block 19 does not press against the groove wall of the heat exchange groove 10 close to the adjacent support plate 8, when the heating plate 9 moves in the heat exchange groove 10, the heat exchange cylinder 6 as a whole remains stationary. And when it is necessary to separate the heat exchange cylinder 6 into two barrel sections 601, at this time, only the limiting rods 32 need to be pulled out of the limiting holes 33 to release the limiting effect on each barrel section 601.

[0094] In an embodiment, clamping rods 28 are provided on the adjacent sides of the two barrel sections 601, and clamping holes 27 that are matched with the clamping rods 28 are opened on the adjacent sides of the two barrel sections 601.

[0095] This can improve the stability during the docking of the barrel sections 601, avoid the separation between the barrel sections 601 due to the expansion of the bladder 11, and ensure that the separation between the barrel sections 601 can only be achieved under the separating movement of the toggle rod 16.

[0096] In an embodiment, two convex blocks 22 are relatively provided on the outer walls of the first connector 20 and the second connector 24, and grooves 23 that are clamped and matched with the convex blocks 22 are opened on the hole walls of the first through hole 21 and the second through hole 25.

[0097] This can keep the installation states of the first connector 20 and the second connector 24 in the first through hole 21 and the second through hole 25 stable respectively.

[0098] In an embodiment, a shell cover 2 is installed on one side of the outer shell 1. In this embodiment, the outer shell 1 and the shell cover 2 can be connected by buckles or bolts to facilitate the disassembly and assembly between the two when the bladder 11 needs to be replaced. Liquid guide pipes 3 and infusion pipes 5 are respectively installed at both axial ends of the outer shell 1. The output end of the liquid guide pipe 3 is connected to the input end of the inner bile duct 4, the input end of the liquid guide pipe 3 is connected to the nutrient solution bag, the input end of the infusion pipe 5 is connected to the output end of the inner bile duct 4, and the output end of the infusion pipe 5 can be connected to the input end of the patient's intestinal tract.

[0099] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0100] It should be noted that if there are directional indications (such as up and down) involved in the embodiments of the invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0101] In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the invention.

Claims

1. An enteral nutrition infusion device with a heating function, characterized in that, It includes a housing (1) and an actuating mechanism disposed within the housing (1). An inner bile duct (4) is axially arranged within the housing (1). The two ends of the inner bile duct (4) are respectively for the input and output of nutrient solution. A heat exchange cylinder (6) in thermal contact with the inner bile duct (4) is sleeved outside the inner bile duct (4). A heat exchange groove (10) is circumferentially formed on the inner side of the heat exchange cylinder (6). Heating plates (9) in thermal contact with the groove wall of the heat exchange groove (10) are axially inserted at both ends of the heat exchange cylinder (6). A bladder (11) in thermal contact with the groove wall of the heat exchange groove (10) and located between the two heating plates (9) is circumferentially arranged within the heat exchange groove (10). A first material pipe (12) and a second material pipe (13) are respectively arranged on the heat exchange cylinder (6). The second material pipe (13) is used to input a predetermined amount of water into the bladder (11). A heat-releasing component capable of reacting with water to release heat is housed within the first material pipe (12). Wherein, when the two heating plates (9) move away from each other axially within the inner bile duct (4), the actuating mechanism is used to drive the heat-releasing component within the first material pipe (12) into the bladder (11), so that the heat released after the heat-releasing component reacts with water forces the pressure within the bladder (11) to increase, causing the two axial ends of the bladder (11) to expand and extend respectively along the extending directions of the two axial ends of the heat exchange groove (10).

2. The enteral nutrition infusion device with a heating function according to claim 1, characterized in that The actuating mechanism includes two support plates (8) sleeved outside the inner bile duct (4). The adjacent sides of the two support plates (8) are respectively fixedly connected to the opposite sides of the two heating plates (9). Connecting rods (17) parallel to the axis of the inner bile duct (4) are arranged on the adjacent sides of the two support plates (8). A valve plate (18) is fixedly connected to the adjacent ends of the two connecting rods (17). Two first openings (26) for the valve plate (18) to enter and exit are oppositely formed on the outer wall of the first material pipe (12). When the two heating plates (9) do not move away from each other, the two valve plates (18) are located inside the first material pipe (12) and are hermetically abutted against each other to form a partition for blocking the communication between the bladder (11) and the first material pipe (12). The heat-releasing component is placed on top of the partition. After the two heating plates (9) move away from each other, it forces the two valve plates (18) to move away from each other, restoring the communication state between the bladder (11) and the first material pipe (12).

3. The enteral nutrition infusion device with a heating function according to claim 2, characterized in that, Poking rods (16) are arranged on the tops of the two support plates (8). Two second openings (29) for the poking rods (16) to pass through and move are oppositely formed on the housing (1).

4. The enteral nutrition infuser with a heating function according to claim 1, characterized in that, A first stopcock (14) is arranged at one end of the first material pipe (12) away from the bladder (11), and a second stopcock (15) is arranged at one end of the second material pipe (13) away from the bladder (11).

5. The enteral nutrition infusion device with a heating function according to claim 1, characterized in that, A first connector (20) and a second connector (24) respectively communicating with the inside of the bladder (11) are fixedly connected to the bladder (11). The end of the first connector (20) away from the bladder (11) is hermetically screwed to the end of the first material pipe (12) close to the bladder (11). The end of the second connector (24) away from the bladder (11) is hermetically screwed to the end of the second material pipe (13) close to the bladder (11). A first through hole (21) for avoiding the first connector (20) and a second through hole (25) for avoiding the second connector (24) are respectively formed on the outer wall of the heat exchange cylinder (6).

6. The enteral nutrition infuser with a heating function according to claim 5, characterized in that, The heat exchange cylinder (6) includes two cylinder sections (601), and the two cylinder sections (601) can move relative to each other in the axial direction of the inner bile duct (4). Sockets (7) for inserting the heating plates (9) are provided at the separated ends of the two cylinder sections (601). Sub-grooves communicating with the corresponding sockets (7) are circumferentially formed on the adjacent sides of the two cylinder sections (601). First sub-holes and second sub-holes are respectively formed on the outer walls of the cylinder sections (601) away from their sockets (7). Among them, when the adjacent ends of the two cylinder sections (601) are butted, the two sub-grooves are butted to form a heat exchange groove (10), the two first sub-holes are butted to form a first through hole (21), and the two second sub-holes are butted to form a second through hole (25). A latching block (19) is arranged on the side of the heating plate (9) away from the inner bile duct (4).

7. The enteral nutrition infuser with a heating function according to claim 6, wherein Latch rods (28) are arranged on the adjacent sides of the two cylinder sections (601), and latch holes (27) matching with the latch rods (28) are formed on the adjacent sides of the two cylinder sections (601).

8. The enteral nutrition infuser with a heating function according to claim 6, characterized in that, Two convex blocks (22) are oppositely arranged on the outer walls of the first connector (20) and the second connector (24), and grooves (23) for latching with the convex blocks (22) are formed on the hole walls of the first through hole (21) and the second through hole (25).

9. The enteral nutrition infusion device with a heating function according to claim 1, wherein The heat release assembly includes a non-woven bag (30) made of a microporous breathable membrane and a water-permeable spherical gelatin layer (31). A raw material capable of undergoing an exothermic reaction with water is accommodated in the non-woven bag (30), and the non-woven bag (30) is fixed in the gelatin layer (31).

10. The enteral nutrition infuser with a heating function according to claim 1, characterized in that, A shell cover (2) is installed on one side of the shell (1). A liquid guide pipe (3) and an infusion pipe (5) are respectively installed at the two axial ends of the shell (1). The output end of the liquid guide pipe (3) is connected to the input end of the inner bile duct (4), and the input end of the infusion pipe (5) is connected to the output end of the inner bile duct (4).

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