Intravenous infusion device for medical care

Abstract

The intravenous infusion device comprises an infusion support, an infusion container and an infusion tube, the infusion container is hung on the infusion support, the infusion support is provided with a supporting platform and an infusion heating device, the supporting platform is provided with a heating piece and a sensing device located in front of the heating piece, and the sensing device is aligned to the upper portion of the heating piece. The induction device is used for controlling the heating piece and the infusion heating device to be started and stopped, the infusion heating device is provided with an openable heating channel, one end of the infusion tube is connected with the infusion container, and the other end of the infusion tube can penetrate through the heating channel and extend to the supporting platform. The infusion heating device is simple in structure and convenient to use, adverse reactions of intravenous injection of a patient can be relieved, and the workload of medical workers and the risk of intravenous injection are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical care equipment, and in particular relates to an intravenous infusion device for medical care. Background Art

[0002] Medical patient care often involves intravenous infusion, which is a method of injecting a large amount of sterile liquid, electrolytes, drugs, etc. into the body through the veins. It has the advantages of fast efficacy, easy control of drug concentration, convenient operation, and little harm to the body. The intravenous infusion device is generally composed of an infusion stand, an infusion bottle / bag, and an infusion tube. The infusion stand is placed in a designated position in the infusion room. After the nurse injects the medicine into the infusion bottle / bag, connects the infusion tube and the needle, and then hangs the infusion / bottle on the hook of the infusion stand, waits for the infusion to end, and then the nurse removes the needle or retains the indwelling needle. Its main defects are:

[0003] Since a large amount of liquid medicine is injected into the vein at one time, and the temperature of the liquid medicine is lower than body temperature, especially in autumn and winter when the ambient temperature is low, the temperature difference between the two is greater, which may cause originally weak patients to experience cold limbs, contraction pain, chills, vasospasm and even shock due to the stimulation of the veins by the low-temperature liquid medicine, thus affecting the treatment. For this reason, medical staff will place heating devices such as hot water bottles under the patient's hands to alleviate the situation. However, this external heating has limited improvement on the condition of patients with intravenous infusion, and overheating may cause the risk of hand burns. For this reason, some infusion warming devices are disclosed in the prior art. After placing the infusion temperature in the heating channel of the infusion warming device, heating elements such as heating plates are used to directly heat the infusion tube and the liquid medicine injected in real time in the tube. In order to reduce the stimulation to the blood vessel wall and alleviate the adverse effects of intravenous injection of low-temperature drug solutions, in order to avoid the drug from staying in the heating device for too long, affecting the stability of the drug, and to avoid large heat energy loss during the transportation of the drug solution, the infusion heating device will be installed near the end of the infusion tube. However, on the one hand, the elevated temperature of the drug entering the blood vessels will cause local vascular dilation, increased permeability of the blood vessel walls, and may cause local tissue pain, while lowering the heating temperature will lose a certain relief effect; on the other hand, the start and stop of the heating device require manual shutdown, which brings a certain burden to the operation of medical care staff. With the increase in the number of patients, there are risks caused by misoperation and failure to shut down the heating device in time.

[0004] Secondly, for very young patients, patients in a coma, or patients with thin blood vessels, the uncontrollable movement of the patient's hand during infusion will increase the movement of the needle, causing the muscles near the injection to turn blue, swell, or stop dripping. For this reason, although medical staff use tape or restraints to fix the patient's hand with the needle, due to fatigue during the infusion process, the movement of the hand and the restraints still poses a risk of accidentally touching the needle.

[0005] In addition, warm medicine will reduce the viscosity of the liquid and accelerate the blood flow. For patients in a coma, the intravenous injection time estimated by medical care staff based on the initial drip rate will have a large error, and personnel are required to observe the infusion situation in a timely manner, which makes care difficult, especially when tired at night. Failure to close the empty infusion tube in time may cause blood backflow and block the needle. When infusing the next bag / bottle of medicine, the needle needs to be removed again to empty the air in the tube or the infusion tube needs to be replaced, which also poses certain safety hazards. Summary of the invention

[0006] The present invention aims to solve at least one of the above-mentioned technical problems to a certain extent. The present invention provides an intravenous infusion device for medical care, which has a simple structure and is easy to use. It is beneficial to alleviate the adverse reactions of intravenous injection in patients and reduce the workload of medical workers and the risk of intravenous injection.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A intravenous infusion device for medical care comprises an infusion stand, an infusion container and an infusion tube, wherein the infusion container is hung on the infusion stand, and the infusion stand is provided with a supporting platform and an infusion warming device, wherein the supporting platform is provided with a heating element and a sensing device located in front of the heating element, wherein the sensing device is aligned above the heating element, and the sensing device is used to control the opening and closing of the heating element and the infusion warming device, wherein the infusion warming device has a heating channel which can be opened and closed, and one end of the infusion tube is connected to the infusion container, and the other end of the infusion tube can pass through the heating channel and extend to the supporting platform.

[0009] In a preferred embodiment, the intravenous infusion device further comprises a fixing plate, the supporting platform is provided with a first magnetic member capable of attracting the fixing plate, the fixing plate can be placed above the heating element, and a binding strap is provided on the fixing plate.

[0010] In a preferred embodiment, a buckle is provided between the infusion warming device and the infusion stand.

[0011] In a preferred embodiment, the infusion warming device includes a left splint and a right splint that can be opened or closed in coordination, the left splint is provided with a first groove, the right splint is provided with a second groove, the first groove and the second groove are respectively provided with heating plates, and the first groove and the second groove can cooperate to form a heating channel.

[0012] In a preferred embodiment, a circuit board is provided in the infusion warming device, a pressure sensing device is provided on the upper part of the first groove and the second groove, and a clamping device is provided on the left clamping plate. The pressure sensing device and the clamping device are electrically connected to the circuit board, and the clamping device is used to clamp the infusion tube in the heating channel.

[0013] In a preferred embodiment, the infusion stand comprises a telescopic stand.

[0014] In a preferred embodiment, the infusion stand comprises a pulley seat, and a plurality of pulleys are provided on the pulley seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are at least:

[0016] (1) In order to solve the problem that the existing intravenous infusion devices cause discomfort to patients due to low or improper temperature of the drug solution, the present invention adopts a heating element in combination with an infusion warming device. After the patient's limbs are placed on / leave the support platform, the sensing device can sense and automatically control the opening and closing of the heating element and the infusion warming device. On the one hand, the temperature of the heating element and the infusion warming device can be set lower, which can comprehensively relieve the pain caused by vascular muscle spasm, chills, and contraction, and the effect is better, which is conducive to the combined relief of the adverse reactions of the patient's intravenous injection. On the other hand, the support platform supports the patient's limbs to reduce patient fatigue, and the automatic sensing opening and closing can prevent empty heating and reduce the workload of medical workers and the risk of intravenous injection.

[0017] (2) In view of the infusion risks caused by the cumbersome fixing operation or accidental contact of the needle in the existing intravenous infusion devices, the present invention uses a fixing plate to fix the patient's hand, and then the first magnetic part on the support platform can be attracted to the fixing plate to further fix the patient's hand, which has the following advantages: 1. Simple operation, which can more securely fix the patient's hand to prevent accidental contact of the needle, further reducing the risk of intravenous injection; 2. It can reduce patient fatigue and prevent the hand from leaving the sensing position and failing to obtain auxiliary heating; 3. The fixing plate can be used as a heat transfer element of the heating element to make the heat transfer more uniform; 4. The adsorption of the fixing plate can facilitate the retention of the fixing plate to prevent the fixing plate from falling and being lost after use.

[0018] (3) In view of the problem that the stop of intravenous injection due to heating in existing intravenous infusion devices is difficult to predict and the progress of infusion needs to be observed in time, the infusion heating device of the present invention senses the decrease of the liquid medicine in the infusion tube by the pressure sensing device, transmits the signal to the circuit board, controls the clamping device to clamp the infusion tube and cut it off, and further integrates the automatic monitoring and stopping function, which can save costs and installation space, reduce the pressure of nursing, avoid blood reflux and safety hazards caused by failure to close the empty infusion tube in time, and further reduce the workload of medical workers and the risk of intravenous injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a front structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 is a rear view structural schematic diagram of an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of an infusion viewed from above according to an embodiment of the present invention;

[0023] Figure 4 It is a front structural schematic diagram of an infusion warming device according to one embodiment of the present invention;

[0024] Figure 5 is a front exploded view of an infusion warming device according to an embodiment of the present invention;

[0025] Figure 6 is a rear exploded view of an infusion warming device according to an embodiment of the present invention;

[0026] Figure 7 It is a rear structural schematic diagram of an infusion warming device according to one embodiment of the present invention;

[0027] Figure 8 is a top view of an infusion warming device according to one embodiment of the present invention;

[0028] Fig. 9 yes Figure 8 AA direction cross-sectional view;

[0029] Fig.10 It is a schematic diagram of an infusion heating device for heating infusion according to one embodiment of the present invention;

[0030] Fig.11 It is a schematic diagram of the operation of the pressure sensing device of the infusion warming device according to one embodiment of the present invention;

[0031] Fig.12 It is a schematic diagram of the operation of the compression device of the infusion warming device according to one embodiment of the present invention.

[0032] Markings in the figure: infusion stand 1, infusion container 2, infusion tube 3, support platform 4, heating element 6, induction device 7;

[0033] Infusion heating device 5, left clamping plate 51, right clamping plate 52, heating channel 53, torsion spring 54, heating sheet 55, convex point 56, reset switch 57;

[0034] First groove 511, circuit board 512, upper shell 513, lower base 514, third groove 515, third magnetic member 516, fifth groove 517, battery compartment 518, charging port 519; second groove 521, through hole 522;

[0035] Pressure sensing device 8, pressure sensor 81, elastic top piece 82, top pin 821, first spring 822, nut 823;

[0036] Clamping device 9, holding electromagnet 901, guide column 902, second spring 903, clamping block 904, swing arm 905, clamping wheel 906, second magnetic member 907, guide hole 908, fourth groove 909, positioning shaft 910;

[0037] Hook 10 , boss 11 , hand 12 , U-shaped buckle 13 , telescopic frame 14 , pulley seat 15 , pulley 16 , fixing plate 17 , first magnetic member 18 , binding belt 19 , and liquid medicine 20 . DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the invention, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined. In the invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0040] In view of the adverse reactions such as pain, chills, vasospasm, etc. caused by low temperature of the drug solution during intravenous infusion, the existing technology has the defects of limited relief effect of using only hot water bags or infusion warming devices and inconvenient management of heating start and stop, such as Figures 1-2As shown, a preferred embodiment of the intravenous infusion device for medical care of the invention is shown, the intravenous infusion device comprises an infusion stand 1, an infusion container 2 and an infusion tube 3, the infusion container 2 is hung on the infusion stand 1, the infusion stand 1 is provided with a supporting platform 4 and an infusion heating device 5, the supporting platform 4 is provided with a heating element 6, and a sensing device 7 located in front of the heating element 6, the sensing device 7 is aligned above the heating element 6, the sensing device 7 is used to control the opening and closing of the heating element 6 and the infusion heating device 5, the infusion heating device 5 has a heating channel 53 that can be opened and closed, one end of the infusion tube 3 is connected to the infusion container 2, and the other end of the infusion tube 3 can pass through the heating channel 53 and extend to the supporting platform 4.

[0041] For example: Figure 1 As shown, the infusion container 2 is an infusion bottle / bag, and the infusion stand 1 is provided with a hook 10 or a mesh bag for hanging the infusion bottle / bag. The support platform 4 serves as a part of the infusion stand 1. The heating element 6 can be a heating plate embedded in the surface of the support platform 4, and the heating element 6 can also be a soft heating pad with a coating, etc. The sensing device 7 can be installed in the boss 11 in front of the heating element 6, so that the sensing end of the sensing device 7 is aligned with the top of the heating element 6. The sensing device 7 can be a proximity switch, etc., and the controller can be arranged inside the support platform 4. The leads of the controller are arranged inside the infusion stand 1 and electrically connected to the heating element 6 and the infusion warming device 5.

[0042] Place the IV set in the designated location in the infusion room, such as Figure 2 As shown, after the medical care personnel injects liquid medicine into the infusion container 2, evacuates the air in the infusion tube 3, inserts the needle of the infusion tube 3 into the patient's hand 12, and adjusts the infusion flow rate, the patient can hold the infusion container 2 and hang it on the infusion stand 1, open the heating channel 53, and put the infusion tube 3 into the heating channel 53. Preferably, the infusion tube 3 near the end is placed into the heating channel 53 to avoid the temperature loss during the infusion process affecting the heating effect. The medical staff or accompanying personnel can also replace the patient to hang the infusion container 2 and place the infusion tube 3. After that, the patient can sit / lie on the chair / bed and can place the hand 12 on the supporting platform 4 above the heating element 6. At this time, the hand 12 is sensed by the sensing device 7, and the infusion heating device 5 and the heating element 6 are controlled to be turned on. The heating channel 53 of the infusion heating device 5 heats the liquid medicine in the infusion tube 3, and the heating element 6 heats the patient's hand 12. Compared with the traditional hot water bag or single infusion heating method:

[0043] On the one hand, due to the combined auxiliary heating, the temperature of the heating element 6 and the infusion warming device 5 can be set lower. The heating element 6 can increase the body temperature of the hand 12 at the infusion position, reduce the temperature difference between the body temperature and the temperature of the medicine, make the muscle tissue more relaxed, and prevent the infusion warming device 5 from causing the temperature of the medicine to be too high, causing local vascular expansion, tissue pain or drug efficacy, and comprehensively relieve the pain caused by vascular muscle spasm, chills, and contraction, with better effect; on the other hand, supporting the patient's hand 12 by the support platform 4 can reduce the patient's fatigue. After the sensing device 7 senses the patient's hand 12, it controls the heating element 6 and the infusion warming device 5 to start working, which can also prevent the infusion warming device 5 from being turned on before the infusion tube 3 is inserted. Heating causes damage, or a person may be burned when touching the heating channel 53 when inserting the infusion tube 3. Similarly, after the intravenous injection is completed, the patient's hand 12 moves away from the support platform 4, and the sensing device 7 cannot sense the hand 12, so the heating element 6 and the infusion warming device 5 are controlled to stop working. Then the next patient can continue to use the intravenous infusion device, and medical staff do not need to operate the start and stop buttons on the infusion warming device 5, which can effectively reduce the burden on the staff and the risk of misoperation, and is more energy-saving. With the increase in the number of patients, the intravenous infusion device has a simple structure and is easy to use, which is conducive to alleviating the adverse reactions of patients' intravenous injections, reducing the workload of medical staff and the risk of intravenous injections, and has high practicality.

[0044] Furthermore, a buckle is provided between the infusion heating device 5 and the infusion stand 1, for example: Figure 2 As shown, the infusion heating device 5 is provided with a U-shaped buckle 13 on the back, which can be connected with the infusion stand 1 through the U-shaped buckle 13 to adjust the installation height of the infusion heating device 5 on the infusion stand 1. It is also convenient to fix and support the infusion heating device 5, thereby facilitating the opening and closing operation of the heating channel 53. The infusion heating device 5 and the supporting platform 4 can be set in multiple groups according to needs.

[0045] Further, such as Figure 1 As shown, the infusion stand 1 includes a telescopic frame 14, through which the infusion height can be flexibly adjusted.

[0046] Furthermore, the infusion stand 1 includes a pulley seat 15, and a plurality of pulleys 16 are provided on the pulley seat 15, so as to facilitate the overall movement and position adjustment of the infusion device.

[0047] For young patients, patients in coma or patients with thin blood vessels, it is inconvenient to fix the hand 12 and there is a technical problem of accidentally touching the needle, such as Figure 3 As shown, the intravenous infusion device also includes a fixing plate 17 , and a first magnetic member 18 capable of attracting the fixing plate 17 is provided on the supporting platform 4 . The fixing plate 17 can be placed above the heating element 6 , and a strap 19 is provided on the fixing plate 17 .

[0048] For example, the fixing plate 17 can be a metal plate, which is placed centrally at the nurse station. When the nurse in the infusion room performs a puncture on the patient, the strap 19 can be tied to the patient's hand 12 to fix the patient's hand 12 to keep it in a horizontal state close to the plate to prevent the hand 12 from bending and causing the needle to move. The strap 19 can be a commonly used medical tape, or an elastic band, Velcro, etc., which can fix the hand 12 and the fixing plate 17. The first magnetic member 18 can be a circular magnet surrounding the heating element 6. In this way, when the patient's hand 12 is placed on the support platform 4, the patient's hand 12 can be fixed by the attraction of the fixing plate 17 and the first magnetic member 18, which has the following advantages: First, compared with a single binding structure, this connection method by magnetic attraction The method is relatively simple, and the patient or medical staff does not need to fix the fixing plate 17 through complicated operations, and it can also prevent the hand 12 from turning over during the infusion process and accidentally touching the needle; second, the patient's hand 12 can be assisted to be fixed on the support platform 4 through suction, which reduces fatigue during the infusion process, and can also prevent the hand 12 from moving away from the sensing device 7 during drowsiness, which causes the infusion warming device 5 and the heating element 6 to stop; third, the fixing plate 17 can be used as a heat transfer plate for the heating element 6, so that the heat transfer is more evenly dispersed, and the heating element 6 is prevented from directly heating the hand 12 and causing local overheating and burns; fourth, the fixing structure is simpler. After contacting the strap 19, the fixing plate 17 can be adsorbed on the support platform 4, and the nurse can collect it in a centralized manner to prevent the fixing plate 17 from being lost so that it can be reused.

[0049] Further, such as Figures 4 to 8 The infusion warming device 5 includes a left splint 51 and a right splint 52 which can be opened or closed in coordination. The left splint 51 is provided with a first groove 511, and the right splint 52 is provided with a second groove 521. The first groove 511 and the second groove 521 are respectively provided with heating plates 55. The first groove 511 and the second groove 521 can cooperate to form a heating channel 53.

[0050] For example: Figure 7 As shown, the left clamping plate 51 and the right clamping plate 52 are formed into a clamp structure through a hinge structure and a torsion spring 54, as shown in FIG. Figure 2 As shown, since the left clamping plate 51 is fixed to the infusion stand 1 by a buckle, the left clamping plate 51 and the right clamping plate 52 can be opened by pinching the back plate of the hinge structure. At this time, the heating channel 53 of the infusion warming device 5 is opened, and the infusion tube 3 can be placed between the first groove 511 and the second groove 521, as shown in FIG. Figure 5 and Figure 6As shown, the first groove 511 and the second groove 521 can adopt a structure with a semicircular cross-section, and the first groove 511 and the second groove 521 are provided with corresponding protrusions 56 at the upper and lower parts, so that the infusion tube 3 can be stuck between the two protrusions 56 when it is inserted, ensuring that the infusion tube 3 is inserted firmly and quickly. After the left clamping plate 51 and the right clamping plate 52 are loosened, the left clamping plate 51 and the right clamping plate 52 are automatically closed under the action of the torsion spring 54, as shown in FIG. Fig. 9 As shown, the first groove 511 and the second groove 521 corresponding to the heating plate 55 are deeper, and can form a heating channel 53 after closing to heat the liquid medicine inside the infusion tube 3. The structure is relatively simple, and the opening and closing of the heating channel 53 is relatively convenient, and it can also be convenient for patients or medical staff to operate.

[0051] The warm liquid medicine will make the existing intravenous injection automatic stop device predicted by the drip rate unreliable, requiring personnel to observe the infusion situation in time, which brings technical problems to nursing. Further, Fig. 9 As shown, a circuit board 512 is provided in the infusion warming device 5, a pressure sensing device 8 is provided on the upper part of the first groove 511 and the second groove 521, and the left clamping plate 51 is provided with a clamping device 9. The pressure sensing device 8 and the clamping device 9 are electrically connected to the circuit board 512, and the clamping device 9 is used to clamp the infusion tube 3 in the heating channel 53.

[0052] For example, Figures 9 to 12 As shown, the pressure sensing device 8 includes a pressure sensor 81 and an elastic top piece 82, the pressure sensor 81 is arranged on the upper part of the first groove 511 of the left clamping plate 51, and the second groove 521 is provided with a through hole 522 aligned with the pressure sensor 81, the elastic top piece 82 includes a top pin 821, a first spring 822 and a nut 823, the tail of the top piece passes through the first spring 822 and the through hole 522 to connect the nut 823, the first spring 822 is located between the top pin 821 and the right clamping plate 52, and the nut 823 can be limited with the right clamping plate 52, so in the natural state, the first spring 822 is slightly compressed.

[0053] like Fig.10 As shown, when the infusion tube 3 filled with liquid medicine is placed between the first groove 511 and the second groove 521, the infusion tube 3 does not contact the pressure sensor 81, and the liquid medicine pressure causes the infusion tube 3 to push the ejector pin 821 to move rightward, compressing the first spring 822. Fig.11As shown, when the medicine in the infusion tube 3 drops to the bottom of the pressure sensing device 8, the pressure of the empty infusion tube 3 corresponding to the pressure sensing device 8 is significantly reduced. At this time, the elastic force of the first spring 822 causes the ejector pin 821 to press the wall of the infusion tube 3 and approach the pressure sensor 81. The pressure sensor 81 senses the pressure and transmits the signal to the circuit board 512. The circuit board 512 controls the clamping device 9 to start, and clamps the infusion tube 3 below to prevent the medicine in the infusion tube 3 from being emptied and causing blood backflow blockage. In this way, there is no need to estimate the injection time through the dripping rate. The sensing structure of the pressure sensor 81 is simple and more accurate. The infusion can be stopped immediately without manual care. It is fast and efficient and can greatly reduce the difficulty of care.

[0054] For example: Figure 5 and Figure 6 As shown, the left clamping plate 51 includes an upper shell 513 and a lower base 514, and the upper shell 513 and the lower base 514 can be connected by screws, such as Figures 5 to 9 As shown, the clamping device 9 includes a retaining electromagnet 901, a guide column 902, a second spring 903, a clamping block 904, a swing arm 905 and a clamping wheel 906. The retaining electromagnet 901 is arranged in the upper shell 513 and is electrically connected to the circuit board 512. A second magnetic member 907 capable of cooperating with the retaining electromagnet 901 is provided above the clamping block 904. The clamping block 904 can slide and cooperate with the guide column 902 and the upper shell 513 in the vertical direction. The second spring 903 is located between the upper shell 513 and the clamping block. 904, for example: a third groove 515 is set in the upper shell 513, and a guide hole 908 is set in the clamping block 904. The clamping block 904 limits the lifting and lowering movement of the clamping block 904 by sliding with the third groove 515. The guide column 902 adopts a bolt, and the guide column 902 is connected to the mounting hole through the threaded cooperation with the upper shell 513. The lower end of the guide column 902 passes through the second spring 903 and is placed in the guide hole 908, which is convenient for the installation of the second spring 903 and can be slidably cooperated with the guide column 902 and the guide hole 908.

[0055] The clamping block 904 is provided with a fourth groove 909, the swing arm 905 is V-shaped and a positioning shaft 910 is provided between the upper shell 513, one end of the swing arm 905 cooperates with the fourth groove 909, and the other end of the swing arm 905 is movably connected to the clamping wheel 906, and the clamping wheel 906 can be located between the upper shell 513 and the lower base 514, and the lower base 514 is provided with a third magnetic member 516 close to one side of the clamping wheel 906, and the lower base 514 is provided with a fifth groove 517 that can cooperate with the clamping wheel 906. Figures 5 to 9As shown, the guide column 902, the first spring and the clamping block 904 can be positioned and installed on the upper shell 513, and the swing arm 905 and the clamping wheel 906 can be installed on the lower base 514. The upper shell 513 and the lower base 514 can be connected to complete the assembly. A reset switch 57 connected to the circuit board 512 is set on the upper shell 513.

[0056] like Fig. 9 As shown, in the natural state, the holding electromagnet 901 is not energized and has no magnetic force, so the elastic force of the second spring 903 and the gravity of the clamping block 904 are greater than the gravity of the pressure wheel and the attraction of the third magnetic member 516, and the second spring 903 presses against the clamping block 904, and the clamping block 904 descends to one side of the clamping column swing arm 905, and the swing arm 905 deflects upward around the positioning shaft 910, so that the clamping wheel 906 on the other side of the swing arm 905 is placed between the upper shell 513 and the lower shell, and the infusion tube 3 is placed in the first groove 511 and the second groove 521, as shown in FIG. Fig.10 As shown, the clamping wheel 906 will not press the infusion tube 3 and will not affect the flow rate of the infusion tube 3.

[0057] like Fig.11 As shown, when the pressure sensing device 8 senses that the upper part of the infusion tube 3 is empty, the signal is transmitted to the circuit board 512, and the circuit board 512 controls the holding type electromagnet 901 to generate magnetic force. Fig.12 As shown, the attraction of the retaining electromagnet 901 and the second magnetic member 907 gives the clamping block 904 an upward driving force. When the clamping block 904 is on the stage, the clamping wheel 906 leads the swing arm 905 to deflect downward around the positioning axis 910. The side close to the clamping wheel 906 is close to the third magnetic member 516, and the attraction driving force for the swing arm 905 to deflect downward is increased. In this way, the clamping block 904 continuously moves upward along the guide column 902 and the upper shell 513, compressing the second spring 903, and the swing arm 905 gradually deflects downward to be close to the third magnetic member 516. The clamping wheel 906 is pressed into the fifth groove 517, so that the clamping wheel 906 is closer to the groove arm of the second groove 521, thereby clamping and cutting off the infusion tube 3.

[0058] Similarly, after the nurse removes the needle, by pressing the reset switch 57, the circuit board 512 controls the holding electromagnet 901 to cut off the power, and the compressed second spring 903 can press down the clamping block 904, and use the fourth groove 909 to cooperate with the swing arm 905 to drive the swing arm 905 to deflect upward and disengage from the third magnetic member 516, and then reset to the Fig. 9 status for reuse.

[0059] The above-mentioned clamping device 9 has the following advantages: First, in addition to heating the infusion, the infusion heating device 5 can further integrate an automatic monitoring and stopping function, with a simple structure, fewer components, easy installation and replacement, and smaller size, which can save costs and installation space; Second, because it only controls the gain and loss of electricity of the holding electromagnet 901, in most cases the clamping device 9 does not need to be powered on, and the power consumption is very small, which is conducive to the self-power supply of the infusion heating device 5, making the entire intravenous infusion device less expensive and more flexible to use; Third, because the infusion heating device 5 is installed at the rear of the infusion tube 3, the immediate shut-off action is faster, which can help the patient to infuse the medicine as much as possible without completely emptying it and affecting the input of the next bag of medicine.

[0060] Further, such as Fig. 9 As shown, the left clamp plate 51 is provided with an electrically connected battery compartment 518 and a charging port 519, the battery compartment 518 is electrically connected to the circuit board 512 and the heating element 6, and a power source is placed in the battery compartment 518, so that the infusion warming device 5 and the heating element 6 can be self-powered, and the space can be reasonably utilized, and an independent power source can be used for power supply, and the charging port 519 can be used for charging. The power output can be controlled by a controller in the circuit board 512 or the supporting platform 4, and there is no need to connect the intravenous infusion device to a socket, which can improve the flexibility of using the intravenous infusion device.

[0061] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention. They are not intended to limit the scope of protection of the invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the invention should be included in the scope of protection of the invention.

Claims

1. An intravenous infusion device for medical care, comprising an infusion stand (1), an infusion container (2) and an infusion tube (3), wherein the infusion container (2) is hung on the infusion stand (1), and characterized in that: The infusion stand (1) is provided with a supporting platform (4) and an infusion heating device (5); the supporting platform (4) is provided with a heating element (6) and a sensing device (7) located in front of the heating element (6); the sensing device (7) is aligned with the top of the heating element (6); the sensing device (7) is used to control the opening and closing of the heating element (6) and the infusion heating device (5); the infusion heating device (5) has an opening and closing heating channel (53); one end of the infusion tube (3) is connected to the infusion container (2); the other end of the infusion tube (3) can pass through the heating channel (53) and extend to the supporting platform (4).

2. The intravenous infusion device for medical care according to claim 1, characterized in that: It comprises a fixing plate (17), the supporting platform (4) is provided with a first magnetic member (18) capable of attracting the fixing plate (17), the fixing plate (17) can be placed above the heating element (6), and the fixing plate (17) is provided with a binding belt (19).

3. The intravenous infusion device for medical care according to claim 1, characterized in that: A buckle is provided between the infusion warming device (5) and the infusion stand (1).

4. The intravenous infusion device for medical care according to any one of claims 1 to 3, characterized in that: The infusion warming device (5) comprises a left clamping plate (51) and a right clamping plate (52) which can be opened or closed in coordination, the left clamping plate (51) being provided with a first groove (511), the right clamping plate (52) being provided with a second groove (521), heating plates (55) being provided in the first groove (511) and the second groove (521) respectively, and the first groove (511) and the second groove (521) can cooperate to form a heating channel (53).

5. The intravenous infusion device for medical care according to claim 4, characterized in that: The infusion heating device (5) is provided with a circuit board (512), the first groove (511) and the second groove (521) are provided with a pressure sensing device (8) at their upper parts, the left clamping plate (51) is provided with a clamping device (9), the pressure sensing device (8) and the clamping device (9) are electrically connected to the circuit board (512), and the clamping device (9) is used to clamp the infusion tube (3) in the heating channel (53).

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