Heating equipment for instillation of enteral nutrient solution

Abstract

The invention relates to heating equipment for enteral nutrient solution instillation, the heating equipment comprises a heating box, a transfusion pipeline, a first heating mechanism and a second heating mechanism, the heating box is provided with a containing cavity, and an inlet and an outlet which are communicated with the containing cavity are formed in the heating box; the liquid conveying pipeline comprises a preheating pipe and a flow dividing heating pipe, the flow dividing heating pipe comprises a first multi-way pipe, a second multi-way pipe and a plurality of flow dividing pipes, the flow dividing pipes are connected with the first multi-way pipe and the second multi-way pipe, and the inlet, the preheating pipe, the first multi-way pipe, the flow dividing pipes, the second multi-way pipe and the outlet are sequentially connected in the liquid flowing direction; the first heating mechanism is used for preheating the nutrient solution passing through the preheating pipe; according to the device, the nutrient solution is subjected to preheating and mixed heating, local overheating or insufficient heating, caused by direct heating, of the liquid conveying pipeline is avoided, and it is guaranteed that the nutrient solution is evenly heated and stably reaches the proper temperature.

Description

Technical Field

[0001] The invention relates to the field of medical heating equipment, in particular to a heating equipment for enteral nutrient solution drip. Background Art

[0002] Enteral nutrition solution contains a variety of nutrients needed by humans. It is suitable for patients with insufficient gastrointestinal function or partial gastrointestinal function who cannot eat enough regular food to meet the body's nutritional needs. When using it, the nutrient solution needs to be heated to a temperature suitable for intestinal absorption. Too low a temperature can easily cause abdominal discomfort or diarrhea, nutrient absorption disorders or other symptoms in patients.

[0003] Chinese patent application CN115915514B discloses a heating device for enteral nutrition drip, including a shell, the inner wall of which is provided with a heating mechanism, the heating mechanism including a heating bag and a connecting mechanism, the heating bag is located on the inner side of the shell, the connecting mechanism includes two connecting pipes, both connecting pipes are connected to the inside of the shell, a flat tube is connected between the two connecting pipes, and an auxiliary mechanism is provided on the inner wall of the shell, the auxiliary mechanism is used to squeeze the flat tube. The invention increases the contact area between the pipe and the heating bag through the design of the flat tube and the heating bag, thereby improving the heating efficiency of the nutrient solution, and the auxiliary mechanism will repeatedly squeeze the flat tube to deform, thereby ensuring the fluidity of the nutrient solution in the flat tube, further improving the heating effect of the nutrient solution in the flat tube.

[0004] However, in actual use, when the cross-sectional area of ​​the flat tube changes due to extrusion (such as the flat tube is partially flattened), the flow rate will change, resulting in uneven flow rate during extrusion and non-extrusion, making the heating time of the nutrient solution in the flat tube uneven and the heating unstable.

[0005] Therefore, a warming device for enteral nutrition solution infusion that can be heated stably is needed. Summary of the invention

[0006] Based on this, the object of the present invention is to provide a heating device for enteral nutrient solution drip, which can mix the heated nutrient solution evenly, stabilize the temperature of the nutrient solution, and ensure the heating effect of the nutrient solution.

[0007] The purpose of the present invention is achieved by the following scheme:

[0008] A heating device for enteral nutrient solution drip, comprising:

[0009] A heating box, the heating box having a containing cavity, and the heating box having an inlet and an outlet communicating with the containing cavity;

[0010] The liquid infusion pipeline includes a preheating tube and a shunt heating tube, the shunt heating tube includes a first multi-way tube, a second multi-way tube and a plurality of shunt tubes, the plurality of shunt tubes are connected to the first multi-way tube, the plurality of shunt tubes are connected to the second multi-way tube, and the inlet, the preheating tube, the first multi-way tube, the shunt tube, the second multi-way tube and the outlet are connected in sequence along the liquid flow direction;

[0011] a first heating mechanism, the first heating mechanism being used to preheat the nutrient solution passing through the preheating tube;

[0012] The second heating mechanism is used to heat the nutrient solution passing through the shunt heating tube to a preset temperature.

[0013] In one embodiment, the preheating tube includes a first connecting tube, a flat tube and a second connecting tube, and the inlet, the first connecting tube, the flat tube, the second connecting tube and the first multi-way tube are connected in sequence.

[0014] The first heating mechanism comprises a first heating bag, a second heating bag and a first control console, and the flat tube is sandwiched between the first heating bag and the second heating bag; the first heating bag and the second heating bag are both electrically connected to the first control console.

[0015] In one embodiment, the shunt pipe includes a plurality of first bent pipes, and the plurality of first bent pipes belonging to the same shunt pipe are connected in sequence along the extension direction of the shunt pipe.

[0016] In one embodiment, the flow diverter tube includes a tube body, a flow diverter mechanism and a connection mechanism;

[0017] The connection mechanism includes a first connecting rod and a second connecting rod, wherein the first connecting rod is arranged at one end of the tube body close to the preheating tube, and both ends of the first connecting rod are respectively connected to the tube body, one end of the second connecting rod is arranged on the first connecting rod, and the other end of the second connecting rod extends along the liquid flow direction;

[0018] The diversion mechanism includes multiple diversion units, which are arranged in sequence along the extension direction of the second connecting rod. The diversion unit includes multiple diversion plates, each of which is arranged on the second connecting rod, and two adjacent diversion plates belonging to the same diversion unit are arranged at a non-zero angle.

[0019] In one embodiment, the second warming mechanism includes a heat supply tank, a heating element, and a second control console;

[0020] The open end of the heating tank is covered with a tank cover, the heating tank is used to accommodate the heat transfer fluid, and the shunt pipe is located in the heating tank;

[0021] The heating element is arranged in the heating tank, and the heating element is electrically connected to the second control console.

[0022] In one embodiment, the second heating mechanism further includes a temperature sensor; the temperature sensor is installed on the second multi-way pipe, and the temperature sensor is electrically connected to the second control console to transmit the detected temperature information of the nutrient solution to the second control console.

[0023] In one embodiment, the liquid infusion pipeline further includes a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the preheating pipe through an inlet, and the liquid outlet pipe is connected to the shunt heating pipe through an outlet;

[0024] One end of the liquid inlet pipe away from the inlet and one end of the liquid outlet pipe away from the outlet are both provided with pipeline connecting parts, and the pipeline connecting parts are equipped with reducing joints.

[0025] In one of the embodiments, the pipeline connection portion is further provided with a stabilizing mechanism, which includes a fixed cylinder, a movable cylinder, a plurality of squeezing mechanisms and a plurality of closing plates;

[0026] The fixed cylinder is fixed to the pipeline connection part, the movable cylinder is sleeved with the fixed cylinder, a slide groove is provided on the fixed cylinder, a slider is provided on the inner wall of the movable cylinder, and the slider is slidably connected with the slide groove;

[0027] The moving cylinder is provided with a plurality of mounting through holes, and the plurality of extrusion mechanisms are slidably connected to the plurality of mounting through holes one by one. The extrusion mechanism comprises a latch, an elastic element, an extrusion seat and a ball. One end of the latch is connected to the extrusion seat, one end of the elastic element is connected to the moving cylinder, and the other end of the elastic element is connected to the extrusion seat. The ball is embedded in the extrusion seat, and the ball is used to abut against the pipe connected to the reducer.

[0028] The closing plate is connected to the extrusion seat and moves with the movement of the extrusion seat.

[0029] In one of the embodiments, the liquid outlet pipe is provided with an exhaust cylinder, the exhaust cylinder is plugged with an exhaust pipe, and the exhaust pipe is covered with an exhaust cap.

[0030] In one of the embodiments, the warming device further comprises a mounting mechanism;

[0031] The mounting mechanism includes a mounting slot, two engaging jaws and a screw;

[0032] The mounting groove is arranged on the heating box and outside the accommodating cavity. Two opposite clamping jaws are arranged in the mounting groove. The clamping jaws are provided with threaded holes. The screw rod is threadedly connected with the threaded holes to drive the two clamping jaws to move closer to or away from each other.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The nutrient solution that has passed through the heating device is preheated by the first heating mechanism, so that the nutrient solution is initially heated, which reduces the subsequent heating time. The nutrient solution that has been shunted is then heated by the shunt heating tube and the second heating mechanism, so that the nutrient solution is fully mixed when it reaches the preset temperature, avoiding local overheating or insufficient heating of the infusion pipeline caused by direct heating, and ensuring that the nutrient solution is heated evenly and stably to reach an appropriate temperature.

[0035] 2. The first multi-way pipe, the shunt pipe and the second multi-way pipe are used to make the nutrient solution undergo a process of shunt-heating-merging in the shunt heating pipe, so that the nutrient solution heated in each shunt pipe is mixed together, so that the temperature inside and outside is consistent when the nutrient solution is uniformly circulated, making the heating more stable;

[0036] 3. A curved pipe is set in the shunt pipe to extend the heating pipe on the one hand, and on the other hand, the nutrient solution shakes in the curved infusion pipe to make the heating more uniform;

[0037] 4. The design of the stabilizing mechanism cooperates with the reducer to ensure the stability of the equipment while adapting to pipes with different inner diameters. When the stabilizing mechanism is in use, the moving cylinder moves up and the extrusion mechanism drives the ball to press on the pipe to prevent the pipe from detaching. When not in use, the moving cylinder moves down and the extrusion mechanism drives the closing plate to close the pipe to prevent the heating equipment from contacting with the outside world and being contaminated.

[0038] 5. Through the installation mechanism with variable engagement size, the device can be installed on infusion stands of different specifications, which facilitates the stable connection between the heating device and the infusion bottle on the infusion stand and can move with the movement of the infusion stand, further increasing the practicality of the heating device.

[0039] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of the structure of a heating device for enteral nutrition solution dripping provided in the first embodiment of the present application;

[0041] Figure 2 for Figure 1 A schematic diagram of the structure of the preheating tube and the first heating mechanism in the provided heating device, wherein the first heating package located on the upper surface of the flat tube is in a hidden state;

[0042] Figure 3 for Figure 1 A schematic diagram of the structure of the split-flow heating tube and the second heating mechanism in the provided heating device, wherein the tank cover in the heating tank is in a hidden state;

[0043] Figure 4A schematic diagram of the structure of the shunt heating pipe and the second heating mechanism in the heating device provided in the second embodiment of the present application, wherein the tank cover in the heating tank is in a hidden state;

[0044] Figure 5a This is a schematic diagram of the structure of the split heating pipe and the second heating mechanism in the heating device provided in the third embodiment of the present application. At this time, the tank cover in the heating tank is in a hidden state;

[0045] Figure 5b for Figure 5a A schematic diagram of the structure of the shunt tube in the provided shunt heating tube, in which the tube body is in a hidden state;

[0046] Figure 6a for Figure 1 A schematic diagram of the structure of the reducer and the stabilizing mechanism in the provided heating device, wherein the closing plate is in a closed state;

[0047] Figure 6b for Figure 6a A schematic diagram of the structure of the reducer and the stabilizing mechanism provided in another state, in which the closing plate is in an open state;

[0048] Figure 6c for Figure 6a A cross-sectional view of the reducer and stabilizing mechanism provided;

[0049] Figure 7 for Figure 1 A schematic diagram of the structure of the installation mechanism in the provided heating device;

[0050] In the figure, 100, heating box; 110, accommodating chamber; 120, inlet; 130, outlet; 200, infusion pipeline; 210, preheating tube; 211, first connecting tube; 212, flat tube; 213, second connecting tube; 220, shunt heating tube; 230, first multi-way tube; 240, second multi-way tube; 250, shunt tube; 251, first elbow; 252, tube body; 253, shunt mechanism; 254, connecting mechanism; 255, first connecting rod; 256, second connecting rod; 260, liquid inlet pipe; 270, liquid outlet pipe; 271, exhaust pipe; 272, exhaust pipe; 273, exhaust cover; 300, first heating Mechanism; 310, first heating pack; 320, second heating pack; 330, first control console; 400, second heating mechanism; 410, heating trough; 411, trough cover; 420, heating element; 430, second control console; 440, temperature sensor; 500, reducer; 600, stabilizing mechanism; 610, fixed cylinder; 611, slide groove; 620, movable cylinder; 621, slider; 630, extrusion mechanism; 631, latch; 632, elastic element; 633, extrusion seat; 634, ball; 640, closing plate; 700, mounting mechanism; 710, mounting groove; 720, snap-fit ​​jaws; 730, screw. DETAILED DESCRIPTION

[0051] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the invention more thorough and comprehensive.

[0052] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "parallel", "first", "second", "third" and similar expressions used herein are for illustrative purposes only.

[0053] First embodiment:

[0054] See also Figure 1 , which shows a heating device for enteral nutrition solution infusion provided in the first embodiment of the present application, wherein the heating device includes a heating box 100, an infusion pipeline 200, a first heating mechanism 300 and a second heating mechanism 400.

[0055] Specifically, the heating box 100 has a containing box, the heating box 100 is provided with an inlet 120 and an outlet 130 communicating with the containing chamber 110, and the infusion pipeline 200 includes a preheating tube 210 and a shunt heating tube 220. Figure 3 As shown, the shunt heating pipe 220 includes a first multi-way pipe 230, a second multi-way pipe 240 and a plurality of shunt pipes 250, the plurality of shunt pipes 250 are all connected to the first multi-way pipe 230, the plurality of shunt pipes 250 are all connected to the second multi-way pipe 240, the inlet 120, the preheating pipe 210, the first multi-way pipe 230, the shunt pipe 250, the second multi-way pipe 240 and the outlet 130 are sequentially connected along the liquid flow direction; preferably, the first multi-way pipe 230 and the second multi-way pipe 240 can be a combined three-way pipe structure, by reasonably combining a plurality of three-way pipes, each three-way pipe has three interfaces, and the fluid can be shunted or merged. For example, two three-way pipes are combined, and one outlet of the first three-way pipe is connected to one inlet of the second three-way pipe, so as to construct a fluid channel network with one liquid inlet and multiple liquid outlets or one liquid outlet and multiple liquid inlets.

[0056] The first heating mechanism 300 and the second heating mechanism 400 are both arranged in the accommodating cavity 110, wherein the first heating mechanism 300 is used to preheat the nutrient solution passing through the preheating tube 210, initially raising the temperature of the nutrient solution so that the nutrient solution can adapt to the heating environment in advance, reducing the risk of composition changes that may occur due to rapid temperature changes, and at the same time, it can also shorten the overall heating time to a certain extent and improve the heating efficiency.

[0057] The second heating mechanism 400 is used to heat the nutrient solution passing through the shunt heating tube 220 to a preset temperature. Preferably, the preset temperature is a suitable temperature for the human body of 37-40°C. From a physiological point of view, the internal environmental temperature of the human body is relatively stable. Heating the nutrient solution to a range close to the human body temperature can avoid the stress response of the human body caused by the input of too cold nutrient solution. For example, it prevents patients from experiencing vasoconstriction, blood pressure fluctuations, etc., thereby ensuring the safety and comfort of the infusion process. From the perspective of nutrient absorption, the appropriate temperature helps the nutrient solution to be better absorbed and utilized in the body, maintaining the normal metabolism and physiological functions of the human body. In medical infusion practice, especially for some patients who rely on nutrient solution input for a long time or are weak and sensitive to temperature changes, accurately controlling the heating temperature of the nutrient solution to 37-40°C can significantly improve the treatment effect, reduce complications caused by improper infusion temperature, and is beneficial to the patient's recovery process.

[0058] The use process of the warming device for enteral nutrition solution infusion provided in the first embodiment of the present application is as follows:

[0059] The infusion pipe 200 is properly connected to the external nutrient solution supply source and the nutrient solution syringe that needs to be fed with nutrient solution, so that the first heating mechanism 300 and the second heating mechanism 400 start to work and preheat to the corresponding working state. The first heating mechanism 300 starts to heat the area in the accommodation chamber 110 that contacts the preheating tube 210.

[0060] The nutrient solution supply source is started. After the nutrient solution flows from the inlet 120 into the infusion pipe 200 in the heating box 100, it is heated by the first heating mechanism 300 in the preheating tube 210. The nutrient solution begins to initially absorb heat and the temperature gradually rises.

[0061] Next, the preheated nutrient solution flows into the first multi-channel tube 230 and is distributed by the first multi-channel tube 230 to the multiple shunt tubes 250 connected to the first multi-channel tube 230. In the shunt tube 250, the second heating mechanism 400 continuously heats it, so that the nutrient solution in the shunt tube 250 fully exchanges heat with the heating environment in the accommodating chamber 110, and gradually heats up to a preset temperature. The nutrient solution is heated in the shunt tube 250 while flowing to the second multi-channel tube 240. The second multi-channel tube 240 collects the nutrient solution in the multiple shunt tubes 250 connected thereto, and then flows out from the outlet 130 and continues to flow along the infusion path to the nutrient solution syringe.

[0062] The beneficial effects of the heating device provided in the first embodiment of the present application are:

[0063] The nutrient solution in the preheating tube 210 is preliminarily preheated by the first heating mechanism 300. On the one hand, the nutrient solution is preliminarily adapted to the heating environment, reducing the temperature fluctuation and overshoot phenomenon that may be caused by direct heating to the target temperature, and on the other hand, the heating time required for subsequent heating to the preset temperature is reduced; the first multi-channel tube 230, the shunt tube 250, and the second multi-channel tube 240 are adopted, so that the nutrient solution undergoes a shunt-heating-merger process in the shunt heating tube 220, so that the nutrient solution heated in each shunt tube 250 is fully mixed, so that the internal and external temperatures of the nutrient solution are consistent after being fully mixed, avoiding local overheating or insufficient heating of the infusion pipeline 200 caused by direct heating, and ensuring that the nutrient solution is heated evenly and stably to reach an appropriate temperature; and compared with the traditional single-pipe heating method, this shunt structure can make more full use of heating resources, heat the nutrient solution to the preset temperature in a shorter time, reduce the patient's waiting time for infusion, and improve the efficiency of medical care work.

[0064] See also Figure 1 and Figure 2 The preheating tube 210 includes a first connecting tube 211, a flat tube 212 and a second connecting tube 213, and the inlet 120, the first connecting tube 211, the flat tube 212, the second connecting tube 213 and the first multi-way tube 230 are connected in sequence.

[0065] The first heating mechanism 300 includes a first heating pack 310, a second heating pack 320 and a first control console 330. Figure 1 As shown, the flat tube 212 is placed horizontally, and the flat tube 212 is sandwiched between the first heating bag 310 and the second heating bag 320. The first heating bag 310 is arranged on the upper surface of the flat tube 212, and the second heating bag 320 is arranged on the lower surface of the flat tube 212. The first heating bag 310 and the second heating bag 320 are both electrically connected to the first control console 330, and the first control console 330 is used to control the first heating bag 310 and the second heating bag 320 to preheat the nutrient solution in the flat tube 212. Preferably, the first heating bag 310 and the second heating bag 320 can be heating devices such as electric heating wire heating bags, PTC heating bags or electromagnetic induction heating bags.

[0066] Specifically, the flat tube 212 has a larger heating area than other pipes and can absorb heat efficiently, because the wide surface of the flat tube 212 can fit tightly against the heating pack. Second, the heating uniformity is good, which can avoid local overheating or overcooling and ensure the stable quality of the nutrient solution. Third, the heat conduction efficiency is high, and the thin-walled structure allows heat to be quickly transferred to the nutrient solution, making the preheating effect more efficient; when in use, medical staff supply power to the first heating pack 310 and the second heating pack 320 through the first control console 330, so that the first heating pack 310 and the second heating pack 320 start to heat up and transfer heat from the upper and lower surfaces of the flat tube 212 to the nutrient solution in the flat tube 212 at the same time, so that the heat can quickly and evenly penetrate into the nutrient solution in the flat tube 212, so that the temperature of the nutrient solution gradually rises, thereby realizing the preheating function of the nutrient solution.

[0067] Second embodiment:

[0068] See also Figure 1 and Figure 4 The second embodiment includes the first embodiment, and is different from the first embodiment in that:

[0069] Preferably, the shunt pipe 250 includes a plurality of first curved pipes 251, and the plurality of first curved pipes 251 belonging to the same shunt pipe 250 are sequentially connected along the extension direction of the shunt pipe 250. Preferably, the first curved pipe 251 can be one or more of a threaded pipe, a serpentine pipe or a corrugated pipe.

[0070] Specifically, on the one hand, the provision of multiple first bends 251 extends the flow path of the nutrient solution in the diverter pipe 250, thereby increasing its residence time in the housing chamber 110 of the heating box 100, and enabling more sufficient heat exchange with the heating environment, thereby ensuring that the nutrient solution reaches a preset temperature and improving the heating effect; on the other hand, the curved structure of the first bend pipe 251 enables the nutrient solution to continuously change its flow direction during the flow process, thereby avoiding uneven heating caused by excessive local flow velocity when the diverter pipe 250 flows in a straight line, allowing the nutrient solution to be evenly heated in different parts, thereby further ensuring temperature consistency on the basis of diversion.

[0071] Third embodiment:

[0072] The third embodiment includes the first embodiment, and is different from the first embodiment in that:

[0073] See also Figure 5a and Figure 5b Preferably, the diverter tube 250 includes a tube body 252, a diverter mechanism 253 and a connection mechanism 254;

[0074] Preferably, the connection mechanism 254 includes a first connecting rod 255 and a second connecting rod 256, the first connecting rod 255 is arranged at one end of the tube body 252 close to the preheating tube 210, and the two ends of the first connecting rod 255 are respectively connected to the tube body 252, one end of the second connecting rod 256 is arranged on the first connecting rod 255, and the other end of the second connecting rod 256 extends along the liquid flow direction; the diversion mechanism 253 includes a plurality of diversion units, and the plurality of diversion units are arranged in sequence along the extension direction of the second connecting rod 256, and the diversion unit includes a plurality of diversion plates, each of which is arranged on the second connecting rod 256, and a non-zero angle is formed between two adjacent diversion plates belonging to the same diversion unit.

[0075] Specifically, when the nutrient solution preheated by the preheating tube 210 flows into the tube body 252 of the shunt tube 250, it passes through a plurality of shunt units in the tube body 252 in sequence, and the nutrient solution is divided into a plurality of tributaries with different flow directions when flowing through these shunt plates. These tributaries collide and mix with each other under the guidance of the shunt plates, and constantly change the flow path in the shunt tube 250, which, on the one hand, increases the contact area and contact time with the heating environment, so that the nutrient solution can fully absorb heat, and on the other hand, the shunt plates make the flow state of the nutrient solution in the shunt tube 250 complex and changeable, avoiding uneven heating caused by excessively fast or too slow local flow rates, so that the nutrient solution can be evenly heated in the entire tube body 252, ensuring the heating quality.

[0076] It is understandable that the shunting mechanism 253 and the connection mechanism 254 can also be a porous plate shunting mixing mechanism, in which a porous plate is provided in the pipeline, and there are many evenly distributed small holes on the porous plate. When the nutrient solution flows through the porous plate, the liquid is divided into multiple streams by these small holes. A series of spoilers can be provided downstream of the porous plate so that these streams collide and mix with each other. Along with the flow of the nutrient solution, through a plurality of such porous plates and spoiler combined structures, the effect of mixing and changing the flow direction of similar shunting mechanism 253 can be achieved. Every time through a porous plate, the flow of the nutrient solution is redistributed once, and further mixed after passing through the spoiler, thereby increasing the contact area and contact time of the liquid with the heating environment.

[0077] Fourth embodiment:

[0078] The fourth embodiment includes the first embodiment, and is different from the first embodiment in that:

[0079] See also Figure 3 , Figure 4 and Figure 5a Preferably, the second heating mechanism includes a heating tank 410, a heating element 420 and a second control console 430; the open end of the heating tank 410 is covered with a tank cover 411, the heating tank 410 is used to accommodate a heat transfer fluid, and the shunt pipe 250 is located in the heating tank 410; the heating element 420 is arranged in the heating tank, and the heating element 420 is electrically connected to the second control console 430.

[0080] Specifically, the second control console 430 is powered on to start the heating element 420. After the heating element 420 generates heat, the heat transfer fluid is heated up, and the heat is evenly transferred to the nutrient solution in the tube. The heat transfer fluid surrounds the shunt tube 250, thereby providing the same heat to each shunt tube 250, which helps to eliminate the local temperature difference in the shunt tube 250 caused by direct heating of the heating mechanism, ensures that the nutrient solution is evenly heated to the preset temperature, and improves the safety and effectiveness of infusion.

[0081] Preferably, if Figure 3 and Figure 4 As shown, the second heating mechanism 400 further includes a temperature sensor 440; the temperature sensor 440 is installed on the second multi-channel pipe 240, and the temperature sensor 440 is electrically connected to the second control console 430 to transmit the detected temperature information of the nutrient solution to the second control console 430, so as to monitor in real time the temperature of the nutrient solution when it is about to flow out of the shunt heating tube 220. The medical staff can judge the current heating state of the nutrient solution according to the nutrient solution temperature information obtained by the second control console 430 and adjust the heating power in time so that the nutrient solution can reach the preset temperature when leaving the shunt heating tube 220, ensuring accurate and stable heating.

[0082] It can be understood that the second heating mechanism 400 can also be an electromagnetic induction heating mechanism, an infrared heating mechanism or a steam heating mechanism. For the electromagnetic induction heating mechanism, the shunt tube 250 can be made of a magnetic conductive material, and the heating mechanism is composed of an electromagnetic controller and an induction coil. When alternating current passes through the induction coil, an alternating magnetic field is generated, an induced current is generated in the shunt tube 250, and heat is generated to heat the nutrient solution. For the infrared heating mechanism, infrared rays can be emitted by an infrared radiator, and the energy of the infrared rays is absorbed by the shunt tube 250, thereby heating the nutrient solution in the tube. For the steam heating mechanism, the heat of the steam can be used to heat the nutrient solution in the shunt tube 250. The steam circulates in the heating jacket or the pipe surrounding the shunt tube 250, and the heat is transferred to the nutrient solution through the pipe wall.

[0083] Embodiment five:

[0084] The fifth embodiment includes the first embodiment, and is different from the first embodiment in that:

[0085] like Figure 1 , Figure 6a , Figure 6b As shown, preferably, the infusion pipeline 200 also includes a liquid inlet pipe 260 and a liquid outlet pipe 270, the liquid inlet pipe 260 is connected to the preheating pipe 210 through the inlet 120, and the liquid outlet pipe 270 is connected to the shunt heating pipe 220 through the outlet 130; the end of the liquid inlet pipe 260 away from the inlet 120 and the side of the liquid outlet pipe 270 away from the outlet 130 are both provided with a pipeline connecting part, and the pipeline connecting part is provided with a reducing joint 500.

[0086] Specifically, one end of the reducer 500 is tapered, with its small end connected to the smaller diameter end of the infusion pipeline 200, and the large end facing the external connection component. When connected, pipelines of different specifications can be connected to different ends of the reducer 500, so that pipelines of different diameters can be connected to the heating device, enhancing the compatibility of the infusion system, and can connect infusion equipment and pipelines of different specifications, reducing the trouble of replacing the entire set of pipelines due to mismatched diameters. The continuity and stability of the infusion are guaranteed.

[0087] Preferably, Figure 6a , Figure 6b As shown, the pipeline connection portion is also provided with a stabilizing mechanism 600, which includes a fixed cylinder 610, a movable cylinder 620, a plurality of squeezing mechanisms 630 and a plurality of closing plates 640; Figure 6c As shown, the fixed cylinder 610 is fixed to the outside of the reducer 500, the movable cylinder 620 is sleeved with the fixed cylinder 610, a slide groove 611 is provided on the fixed cylinder 610, and a slider 621 is provided on the inner wall of the movable cylinder 620, and the slider 621 is slidably connected with the slide groove 611;

[0088] The movable cylinder 620 is provided with a plurality of mounting through holes, and a plurality of extrusion mechanisms 630 are slidingly connected to the plurality of mounting through holes one by one. The extrusion mechanism 630 includes a latch 631, an elastic element 632, an extrusion seat 633 and a ball 634. One end of the latch 631 is connected to the extrusion seat 633, one end of the elastic element 632 is connected to the movable cylinder 620, and the other end of the elastic element 632 is connected to the extrusion seat 633. Preferably, the elastic element 632 can be a mechanism with elastic properties such as a spring, an elastic rubber column or a disc spring; the ball 634 is embedded in the extrusion seat 633, and the ball 634 is used to abut against the pipe connected to the reducer 500; the closing plate 640 is connected to the extrusion seat 633, and moves with the movement of the extrusion seat 633.

[0089] Specifically, when the pipeline needs to be connected, the latch 631 is first pulled outward. The pulling action of the latch 631 drives the closing plate 640 on the extrusion seat 633 connected thereto to move, thereby putting the infusion pipeline 200 in an open state. Figure 6b As shown. Then push the moving cylinder 620 to slide along the slide groove 611 of the fixed cylinder 610. In this process, the moving cylinder 620 will drive the extrusion mechanism 630 to move synchronously, so that the reducer 500 is gradually exposed from the inside of the moving cylinder 620. Subsequently, the pipe connected to the heating device is sleeved on the reducer 500 to achieve the docking operation between the pipe and the reducer 500. After the docking is completed, move the moving cylinder 620 back so that the extrusion mechanism 630 is just in the connection part between the pipe and the reducer 500. At this time, release the latch 631, and the ball 634 on the extrusion seat 633 gradually and tightly abuts against the outer wall of the pipe under the action of the elastic element 632. Since the ball 634 is in close contact with the outer wall of the pipe, sufficient friction will be generated, thereby achieving effective fixation of the pipe. At the same time, the closing plate 640 will move with the movement of the extrusion seat 633, further wrapping the connection part between the pipe and the reducer 500, significantly enhancing the stability and sealing of the connection.

[0090] When the infusion is finished, the latch 631 is pulled up again. Pulling up the latch 631 can release the restriction on the connection between the pipeline and the reducer 500, so that the pipeline and the reducer 500 can be separated smoothly. Then, the movable cylinder 620 is pushed to slide along the slide groove 611 of the fixed cylinder 610, so that the reducer 500 returns to the movable cylinder 620. Finally, the latch 631 is released, and the elastic element 632 returns to its original state by its own elasticity, so that the closing plate 640 closes the infusion pipeline 200 again. The closed state of the stabilizing mechanism 600 is as shown in FIG. Figure 6a shown.

[0091] Specifically, the combined operation mode of the latch 631 and the movable cylinder 620 is adopted. When connecting the pipeline, it is only necessary to simply pull out the latch 631 to easily open the infusion pipeline 200 and prepare for the subsequent exposure of the reducer 500 and the docking with the pipeline. Then, the action of pushing the movable cylinder 620 is intuitive and easy to perform. The steps of the entire connection process are clear and the operation is smooth, without the need for complex tools or professional skills. When the infusion is finished, the connection restriction can be released by pulling up the latch 631 again, and the movable cylinder 620 is pushed to reset. After the latch 631 is released, each component automatically returns to the initial state. Both medical staff and ordinary operators can quickly get started, which greatly saves operation time and energy. It can respond quickly in emergency medical situations to ensure that the infusion process is carried out efficiently and orderly.

[0092] In one embodiment, if Figure 1 As shown, the liquid outlet pipe 270 is provided with an exhaust cylinder 271, on which an exhaust pipe 272 is plugged, and the exhaust pipe 272 is covered with an exhaust cap 273. When not in use, the exhaust cap 273 is closed to prevent air from entering the pipe and contaminating the pipe. When in use, the exhaust cap 273 is opened to allow the gas to be discharged smoothly.

[0093] Specifically, since the flow of liquid during the infusion process is easy to entrain air, once this air enters the human blood circulation, it is very likely to form an air embolism and block blood vessels, which poses a direct threat to life in severe cases. In particular, the nutrient solution has been heated, and the increase in temperature causes the solubility of the gas dissolved therein to decrease, and a large amount of gas escapes. After the nutrient solution flows through the shunt heating tube 220, the entrained air gathers at the exhaust pipe 271. With the help of the exhaust pipe 272 connected to the exhaust pipe 271, on the one hand, the air can be smoothly discharged to the external environment through the exhaust pipe 272; on the other hand, the generation of gas changes the pressure difference inside and outside the pipeline. Exhausting gas through the exhaust pipe 272 can adjust the pressure difference balance inside and outside the pipeline, comprehensively guaranteeing the safety and efficiency of the infusion process, and providing solid and reliable support for the treatment of patients.

[0094] It is understandable that a three-way pipe can also be installed at a suitable position of the liquid outlet pipe 270, one interface of which is connected to a normal infusion channel, and the other interface is connected to an exhaust valve. When air enters the liquid outlet pipe 270 during the infusion process, since the density of air is smaller than that of liquid, it will gather at the upper part of the three-way pipe. When the amount of air reaches a certain level, the exhaust valve will automatically open to allow the air to be discharged to the outside world. The opening pressure of the exhaust valve can be adjusted according to actual needs to ensure that while the air is removed, the liquid will not leak. At the same time, a small chamber containing a breathable membrane can also be set in a section of the liquid outlet pipe 270. When the air in the nutrient solution enters this small chamber, the breathable membrane allows gas molecules to pass through, but prevents liquid molecules from seeping out. Air can diffuse to the outside world through the breathable membrane, thereby achieving the purpose of exhaust. The material of the breathable membrane can be selected from polymer materials with good air permeability and waterproofness, such as polytetrafluoroethylene (PTFE) and the like.

[0095] In actual use, the titration of nutrient solution is usually carried out on an infusion stand to facilitate medical staff to accurately control the drip rate of the nutrient solution according to the patient's specific condition. However, during the titration period, the patient may have to move due to examination, bed transfer or other medical needs. General heating equipment is generally independently set up and is extremely inconvenient to move. The movement of the heating device when transferring may cause the infusion tube to be pulled or bent, affecting the normal infusion of the nutrient solution.

[0096] Embodiment six:

[0097] The sixth embodiment includes the first embodiment, and is different from the first embodiment in that:

[0098] See also Figure 7 Preferably, the heating device also includes a mounting mechanism 700; the mounting mechanism 700 includes a mounting groove 710, two snap-fitting jaws 720 and a screw 730; the mounting groove is provided on the heating box 100 and is located outside the accommodating cavity 110, and two opposite snap-fitting jaws 720 are installed in the mounting groove 710, and the snap-fitting jaws 720 are provided with threaded holes, and the screw 730 is threadedly connected to the threaded holes to drive the two snap-fitting jaws 720 to move closer to or away from each other.

[0099] Specifically, align the mounting groove 710 with the part of the infusion stand to be installed, usually the crossbar of the infusion stand. Then, rotate the screw 730, and the screw 730 starts to rotate under the action of the threaded hole and pushes the two engaging jaws 720 to move along its axial direction. Due to the different rotation directions of the screw 730, the two engaging jaws 720 will move closer to or away from each other. When the screw 730 is rotated clockwise, the engaging jaws 720 gradually approach each other until they are tightly fitted on the surface of the crossbar of the infusion stand. The friction between the engaging jaws 720 and the crossbar and the tightening force of the screw 730 are used to firmly fix the mounting mechanism 700 on the infusion stand, thereby completing the connection between the heating device and the infusion stand.

[0100] During the movement of the infusion stand, the heating device will move synchronously with it, avoiding the situation that the infusion tube is pulled or bent due to the relative displacement between the two, which affects the titration, ensuring the stability of the flow rate of the nutrient solution during the titration process, and ensuring the accuracy and safety of the infusion therapy. At the same time, the movable clamping jaws 720 can be adapted to infusion stands of different specifications, greatly improving the versatility and practicality of the heating device, and reducing the trouble of not being able to use the heating device due to incompatibility of the infusion stand.

[0101] It is understandable that the mounting mechanism 700 can also be composed of two clamping claws with springs. The inner side of the clamping claws has a non-slip rubber pad for increasing the friction with the infusion stand. When in use, align the two clamping claws with the crossbar of the infusion stand, then press the clamping claws, the spring is compressed, and the clamping claws open. When the opening size of the clamping claws is large enough to cover the crossbar of the infusion stand, release the clamping claws, and under the action of the spring elastic force, the clamping claws tightly clamp the crossbar.

[0102] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A heating device for enteral nutrition solution infusion, characterized in that: include: A heating box (100), the heating box (100) having a receiving chamber (110), the heating box (100) being provided with an inlet (120) and an outlet (130) communicating with the receiving chamber (110); A liquid infusion pipeline (200), the liquid infusion pipeline (200) comprising a preheating tube (210) and a shunt heating tube (220), the shunt heating tube (220) comprising a first multi-way tube (230), a second multi-way tube (240) and a plurality of shunt tubes (250), the plurality of shunt tubes (250) being connected to the first multi-way tube (230), the plurality of shunt tubes (250) being connected to the second multi-way tube (240), the inlet (120), the preheating tube (210), the first multi-way tube (230), the shunt tube (250), the second multi-way tube (240) and the outlet (130) being connected in sequence along a liquid flow direction; a first heating mechanism (300), the first heating mechanism (300) being used to preheat the nutrient solution passing through the preheating tube (210); The second heating mechanism (400) is used to heat the nutrient solution passing through the diversion heating tube (220) to a preset temperature.

2. The heating device according to claim 1, characterized in that: The preheating tube (210) comprises a first connecting tube (211), a flat tube (212) and a second connecting tube (213); the inlet (120), the first connecting tube (211), the flat tube (212), the second connecting tube (213) and the first multi-way tube (230) are connected in sequence; The first heating mechanism (300) comprises a first heating pack (310), a second heating pack (320) and a first control console (330); the flat tube (212) is sandwiched between the first heating pack (310) and the second heating pack (320); the first heating pack (310) and the second heating pack (320) are both electrically connected to the first control console (330).

3. The heating device according to claim 2, characterized in that: The diverter pipe (250) comprises a plurality of first curved pipes (251), and the plurality of first curved pipes (251) belonging to the same diverter pipe (250) are connected in sequence along the extension direction of the diverter pipe (250).

4. The heating device according to claim 2, characterized in that: The flow dividing tube (250) comprises a tube body (252), a flow dividing mechanism (253) and a connecting mechanism (254); The connection mechanism (254) comprises a first connecting rod (255) and a second connecting rod (256), wherein the first connecting rod (255) is arranged at one end of the tube body (252) close to the preheating tube (210), and both ends of the first connecting rod (255) are respectively connected to the tube body (252), one end of the second connecting rod (256) is arranged on the first connecting rod (255), and the other end of the second connecting rod (256) extends along the liquid flow direction; The flow diversion mechanism (253) comprises a plurality of flow diversion units, wherein the plurality of flow diversion units are arranged in sequence along the extension direction of the second connecting rod (256), and the flow diversion unit comprises a plurality of flow diversion sheets, each of which is arranged on the second connecting rod (256), and two adjacent flow diversion sheets belonging to the same flow diversion unit are arranged at a non-zero angle.

5. The heating device according to claim 2, characterized in that: The second heating mechanism comprises a heating tank (410), a heating element (420) and a second control console (430); The open end of the heat supply groove (410) is covered with a groove cover (411), the heat supply groove (410) is used to accommodate a heat transfer fluid, and the diverter pipe (250) is located in the heat supply groove (410); The heating element (420) is disposed in the heat supply tank (410), and the heating element (420) is electrically connected to the second control console (430).

6. The heating device according to claim 5, characterized in that: The second heating mechanism (400) further includes a temperature sensor (440); The temperature sensor (440) is installed on the second multi-channel tube (240), and the temperature sensor (440) is electrically connected to the second control console (430) to transmit temperature information of the nutrient solution in the second multi-channel tube (240) to the second control console (430).

7. The heating device according to any one of claims 1 to 6, characterized in that: The liquid infusion pipeline (200) further comprises a liquid inlet pipe (260) and a liquid outlet pipe (270), wherein the liquid inlet pipe (260) is connected to the preheating pipe (210) via the inlet (120), and the liquid outlet pipe (270) is connected to the flow-dividing heating pipe (220) via the outlet (130); One end of the liquid inlet pipe (260) away from the inlet (120) and one end of the liquid outlet pipe (270) away from the outlet (130) are both provided with a pipe connection portion, and a reducer (500) is installed on the pipe connection portion.

8. The heating device according to claim 7, characterized in that: The pipeline connection portion is also provided with a stabilizing mechanism (600), and the stabilizing mechanism (600) comprises a fixed cylinder (610), a movable cylinder (620), a plurality of squeezing mechanisms (630) and a plurality of closing plates (640); The fixed cylinder (610) is fixed to the pipeline connection portion, the movable cylinder (620) is sleeved with the fixed cylinder (610), a slide groove (611) is provided on the fixed cylinder (610), a sliding block (621) is provided on the inner wall of the movable cylinder (620), and the sliding block (621) is slidably connected with the slide groove (611); The movable cylinder (620) is provided with a plurality of mounting through holes, and a plurality of extrusion mechanisms (630) are slidably connected to the plurality of mounting through holes one by one. The extrusion mechanism (630) comprises a latch (631), an elastic element (632), an extrusion seat (633) and a ball (634). One end of the latch (631) is connected to the extrusion seat (633), one end of the elastic element (632) is connected to the movable cylinder (620), and the other end of the elastic element (632) is connected to the extrusion seat (633). The ball (634) is embedded in the extrusion seat (633), and the ball (634) is used to abut against a pipe connected to the reducer (500); The closing plate (640) is connected to the extrusion seat (633) and moves along with the movement of the extrusion seat (633).

9. The heating device according to claim 8, characterized in that: The liquid outlet pipe (270) is provided with an exhaust cylinder (271), an exhaust pipe (272) is plugged into the exhaust cylinder (271), and the exhaust pipe (272) is covered with an exhaust cap (273).

10. The heating device according to any one of claims 1 to 6, characterized in that: The heating device also includes a mounting mechanism (700); The mounting mechanism (700) comprises a mounting groove (710), two engaging jaws (720) and a screw rod (730); The mounting groove (710) is arranged on the heating box (100) and is located outside the accommodating cavity (110). Two opposite engaging jaws (720) are installed in the mounting groove (710). The engaging jaws (720) are provided with threaded holes. The screw rod (730) is threadedly connected to the threaded holes to drive the two engaging jaws (720) to move closer to or away from each other.

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