Infusion dosage control device

By designing an infusion dose control device including placing a tank and weighing and speed control mechanism, the problem of inaccurate intravenous mannitol infusion dose in the prior art is solved, quantitative infusion and automatic stop infusion are achieved, and the accuracy and safety of infusion are improved.

CN222623457UActive Publication Date: 2025-03-18THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202420709814.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2025-03-18
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

The prior art is difficult to accurately control the dose when intravenous mannitol is injected into patients, resulting in inaccurate infusion of fluids, increasing the risk of medication and the possibility of medical disputes in patients.

Method used

An infusion dose control device is designed, including a placing tank and weighing speed control mechanism. The device realizes quantitative infusion of mannitol through weighing hooks and control screens, and controls the infusion speed through a micro motor and rotary block to ensure that 125ml mannitol is infused within 30 minutes.

Benefits of technology

It realizes that the infusion is automatically stopped after the injection of quantitative mannitol and reminds medical staff through alarms, reducing the possibility of drug contamination and improving the accuracy and safety of infusion.

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Abstract

The utility model discloses an infusion dosage control device, which comprises a placing tank and a weighing speed regulating mechanism, the placing tank comprises a tank body, the top of the tank body is provided with a tank cover, and the bottom of the tank body is provided with a circular groove; the weighing speed regulation mechanism comprises a weighing hook, a control screen, an alarm and a speed regulation assembly, a weight sensor is arranged in the weighing hook, the weighing hook is arranged at the top of the tank cover, the control screen and the alarm are arranged on the outer wall of the tank body, the control screen is electrically connected with the weighing hook and the alarm, and the speed regulation assembly is used for controlling the infusion flow speed. By means of the mode, the mannitol instillation dosage can be quantitatively controlled, infusion is automatically stopped after a half amount of mannitol is instilled, and meanwhile an alarm is given out to inform medical staff; meanwhile, the instillation speed of mannitol can be controlled, it is ensured that liquid medicine is completely instilled within 30 minutes to ensure the medicine effect, and the situation that a patient feels uncomfortable due to the too high instillation speed is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to an infusion dosage control device. Background Art

[0002] Mannitol is a commonly used dehydrating agent in clinical practice. The commonly used specification is 250 ml. After intravenous drip, it has the effect of dehydrating tissues and diuresis. Therefore, it is widely used to treat cerebral edema caused by various reasons, thereby reducing intracranial pressure and preventing the formation of brain herniation. Related studies have shown that half-dose mannitol (125 ml) has the same therapeutic effect and lower medication risk than full-dose mannitol, so half-dose mannitol is increasingly widely used in clinical practice.

[0003] The liquid specification of 20% mannitol injection itself is 250 ml, and the method of use is intravenous drip, but the actual clinical dosage is 125 ml, which is intravenous drip. In order to meet this infusion demand, nurses often use the following solutions: The first is to use an empty needle to extract 125 ml of liquid and discard it, and continue to infuse the remaining liquid, but it takes up a lot of time and energy of nursing workers, increases the cost of consumables, and easily leads to liquid contamination and liquid crystallization during the extraction process. In addition, repeated puncture of the bottle stopper may cause fine particles to enter the liquid and cause infusion reactions. Particles, heat sources, and active microorganisms in the air will affect the quality of half of the mannitol, thereby increasing the potential risk of medication for patients and laying hidden dangers for adverse events, which can easily cause medical disputes. The second method is that the nurse estimates the half-position of the infusion by eye when infusing the patient at the bedside. There is a risk that the amount of liquid input is extremely inaccurate, which can easily cause medical disputes.

[0004] Based on this, the utility model designs an infusion dosage control device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides an infusion dosage control device.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An infusion dosage control device, comprising:

[0008] A placement tank, comprising a tank body, a tank cover is arranged on the top of the tank body and a circular groove is opened on the bottom; and

[0009] The weighing and speed regulating mechanism comprises a weighing hook, a control screen, an alarm and a speed regulating assembly. The weighing hook has a built-in weight sensor and is arranged on the top of the tank cover. The control screen and the alarm are respectively arranged on the outer wall of the tank body, and the control screen is electrically connected to the weighing hook and the alarm. The speed regulating assembly is used to control the infusion flow rate.

[0010] Furthermore, the speed regulation assembly includes a fixed block and a micro motor, the fixed block is installed at the bottom of the tank body through a plurality of connecting rods, a square groove is opened on the fixed block, a rotating shaft is rotatably connected in the square groove, rotating blocks are arranged on both sides of the rotating shaft, and the rotation of the rotating shaft can enable the rotating block to change the opening size of the square groove, the micro motor is installed on the fixed block and its output end is transmission-connected to the rotating shaft, and the micro motor is electrically connected to the control panel.

[0011] Furthermore, the rotation axis is located in the middle of the square groove, and the distance between the two sides of the two rotation blocks away from each other is adapted to the width of the square groove.

[0012] Furthermore, an observation window is provided on one side of the tank body, and the observation window is in the shape of a longitudinally arranged strip. A scale bar is provided on one side of the observation window, and the scale bar is located at the 125 ml liquid level of the mannitol infusion bottle.

[0013] Furthermore, it also includes a heating component, which includes a heating chamber, a heating wire and a temperature sensor. The heating chamber is opened inside the side wall of the tank body, and heating liquid is stored in the heating chamber. The heating wire and the temperature sensor are respectively installed in the heating chamber and are respectively electrically connected to the control panel.

[0014] The utility model has the following technical effects:

[0015] 1. When the patient needs to be injected with half a dose of mannitol, place the infusion bottle in the tank body, screw on the tank cover, insert the bottle stopper puncture device through the square slot and into the infusion bottle from the round slot, then hang the device on the infusion boom through the weighing hook to start the infusion. The weighing hook weighs the initial weight and transmits the information to the control screen. The control screen controls the output end of the micro motor to rotate and drive the rotating shaft to rotate. The rotating shaft drives the rotating block to rotate in the square slot and squeeze the infusion tube with the side wall of the square slot to control the drip speed of mannitol. The drip speed of mannitol is controlled by the rotation angle of the rotating block. 125ml of mannitol can be dripped within 30 minutes to ensure the efficacy and prevent Prevent patients from accidentally touching the infusion speed; medical staff and patients can observe the mannitol level in the infusion bottle through the observation window, and observe how much is left before half of the mannitol is infused through the scale bar; the control screen displays the infusion speed and the reduced weight. When the weighing hook detects that the weighed weight has decreased by 125ml of the weight corresponding to mannitol, the data is transmitted to the control screen. The control screen controls the alarm to sound an alarm to remind medical staff to end the infusion, and controls the micro motor to drive the rotating block to rotate to clamp the infusion tube until the infusion tube stops delivering mannitol, thereby automatically stopping the infusion after injecting a fixed amount of mannitol and sounding an alarm to inform medical staff. It is simple to use and reduces the possibility of drug contamination.

[0016] 2. When the mannitol in the infusion bottle crystallizes, the heating liquid in the heating chamber is heated by the heating wire, and the heating liquid evenly transfers the heat to the inner wall of the inner end of the tank body, and evenly heats the infusion bottle in contact with the tank body, so that the mannitol is heated to the same temperature as the human body, which can melt the crystals and relieve the pain of infusion for the patient; the temperature sensor detects the heating temperature and transmits the data to the control screen for display, ensuring that the temperature is maintained consistent with the human body temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A three-dimensional infusion dosage control device of the utility model Figure 1 ;

[0019] Figure 2 It is a front view of an infusion dosage control device of the utility model;

[0020] Figure 3 It is a top view of an infusion dosage control device of the utility model;

[0021] Figure 4 For along Figure 3 AA direction cross-sectional view;

[0022] Figure 5 A three-dimensional infusion dosage control device of the utility model Figure 2 .

[0023] The numbers in the figure represent:

[0024] 1. Placement tank; 11. Tank body; 12. Tank cover; 13. Round groove; 2. Weighing and speed regulating mechanism; 21. Weighing hook; 22. Control panel; 23. Alarm; 24. Speed ​​regulating assembly; 241. Connecting rod; 242. Fixed block; 243. Micro motor; 244. Rotating shaft; 245. Rotating block; 246. Square groove; 25. Scale bar; 26. Observation window; 3. Heating assembly; 31. Heating chamber; 32. Heating wire; 33. Temperature sensor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0028] Please refer to the instruction manual Figure 1-5 , an infusion dosage control device, including a placement tank 1 and a weighing speed regulating mechanism 2.

[0029] The placement tank 1 includes a tank body 11, a tank cover 12 is arranged on the top of the tank body 11 and a circular groove 13 is opened on the bottom, the tank cover 12 is spirally screwed to the tank body 11, the height of the tank body 11 is consistent with that of the infusion bottle, and the inner wall of the tank body 11 is in close contact with the infusion bottle.

[0030] Preferably, an observation window 26 is provided on one side of the tank body 11, and the observation window 26 is in the shape of a longitudinal strip. A scale bar 25 is provided on one side of the observation window 26, and the scale bar 25 is located at the 125 ml liquid level of the mannitol infusion bottle.

[0031] The weighing and speed regulating mechanism 2 is used to weigh and regulate the conveying speed of mannitol liquid. The weighing and speed regulating mechanism 2 includes a weighing hook 21, a control screen 22, an alarm 23 and a speed regulating component 24. The weighing hook 21 has a built-in weight sensor and is arranged on the top of the tank cover 12. The control screen 22 and the alarm 23 are respectively arranged on the outer wall of the tank body 11, and the control screen 22 is electrically connected to the weighing hook 21 and the alarm 23. The speed regulating component 24 is used to control the infusion flow rate.

[0032] Furthermore, the speed regulation assembly 24 includes a fixed block 242 and a micro motor 243. The fixed block 242 is installed at the bottom of the tank body 11 through multiple connecting rods 241. A square groove 246 is opened on the fixed block 242. A rotating shaft 244 is rotatably connected in the square groove 246. Rotating blocks 245 are arranged on both sides of the rotating shaft 244. The rotation of the rotating shaft 244 can enable the rotating block 245 to change the opening size of the square groove 246. The micro motor 243 is installed on the fixed block 242 and its output end is transmission-connected to the rotating shaft 244. The micro motor 243 is electrically connected to the control panel 22.

[0033] Preferably, the rotating shaft 244 is located in the middle of the square groove 246 , and the distance between the two rotating blocks 245 on the sides away from each other is matched with the width of the square groove 246 .

[0034] When the patient needs to be injected with half a dose of mannitol, the infusion bottle is placed in the tank body 11, the tank cover 12 is screwed on, the bottle stopper puncture tool of the infusion device is inserted into the infusion bottle from the circular groove 13 through the square groove 246, and then the device is hung on the infusion suspension rod through the weighing hook 21 to start the infusion. The weighing hook 21 weighs the initial weight and transmits the information to the control screen 22. The control screen 22 controls the output end of the micro motor 243 to rotate and drive the rotating shaft 244 to rotate. The rotating shaft 244 drives the rotating block 245 to rotate in the square groove 246 and squeeze the infusion tube with the side wall of the square groove 246 to control the dripping speed of mannitol. The dripping speed of mannitol is controlled by the rotation angle of the rotating block 245, so that 125 ml of mannitol can be dripped within thirty minutes. The medical staff and patients can observe the mannitol level in the infusion bottle through the observation window 26, and observe how much is left before half of the mannitol is dripped through the scale bar 25; the control screen 22 displays the dripping speed and the reduced weight. When the weighing hook 21 detects that the weighed weight is reduced by 125ml of the weight corresponding to mannitol, the data is transmitted to the control screen 22. The control screen 22 controls the alarm 23 to sound an alarm to remind the medical staff to end the infusion, and controls the micro motor 243 to drive the rotating block 245 to rotate to clamp the infusion tube until the infusion tube stops delivering mannitol, thereby automatically stopping the infusion after the quantitative mannitol is injected and sounding an alarm to inform the medical staff. The system is simple to use and reduces the possibility of drug contamination.

[0035] Preferably, a heating component 3 is also included, and the heating component 3 includes a heating chamber 31, a heating wire 32 and a temperature sensor 33. The heating chamber 3 is opened inside the side wall of the tank body 11, and a heating liquid is stored in the heating chamber 3. The heating wire 32 and the temperature sensor 33 are respectively installed in the heating chamber 31 and are respectively electrically connected to the control panel 22.

[0036] When the mannitol in the infusion bottle crystallizes, the heating liquid in the heating chamber 31 is heated by the heating wire 32, and the heating liquid evenly transfers the heat to the inner wall of the inner end of the tank body 11, and evenly heats the infusion bottle in contact with the tank body 11, so that the mannitol is heated to the same temperature as the human body, which can melt the crystals and reduce the pain of the patient's infusion; the temperature sensor 33 detects the heated temperature and transmits the data to the control screen 22 for display, ensuring that the temperature is maintained consistent with the human body temperature.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An infusion dosage control device, characterized in that: include: A placement tank (1) comprising a tank body (11), wherein a tank cover (12) is provided on the top of the tank body (11) and a circular groove (13) is provided on the bottom; and A weighing and speed regulating mechanism (2) comprises a weighing hook (21), a control screen (22), an alarm (23) and a speed regulating assembly (24); the weighing hook (21) has a built-in weight sensor and is arranged on the top of the tank cover (12); the control screen (22) and the alarm (23) are respectively arranged on the outer wall of the tank body (11); the control screen (22) is electrically connected to the weighing hook (21) and the alarm (23); and the speed regulating assembly (24) is used to control the infusion flow rate.

2. The infusion dosage control device according to claim 1, characterized in that: The speed regulating assembly (24) comprises a fixed block (242) and a micro motor (243). The fixed block (242) is mounted below the tank body (11) via a plurality of connecting rods (241). A square groove (246) is provided on the fixed block (242). A rotating shaft (244) is rotatably connected in the square groove (246). Rotating blocks (245) are provided on both sides of the rotating shaft (244). The rotating shaft (244) can cause the rotating blocks (245) to change the opening size of the square groove (246). The micro motor (243) is mounted on the fixed block (242) and an output end thereof is transmission-connected to the rotating shaft (244). The micro motor (243) is electrically connected to the control panel (22).

3. The infusion dosage control device according to claim 2, characterized in that: The rotating shaft (244) is located in the middle of the square groove (246), and the distance between the two sides of the rotating blocks (245) that are away from each other is adapted to the width of the square groove (246).

4. The infusion dosage control device according to claim 1, characterized in that: An observation window (26) is provided on one side of the tank body (11), and the observation window (26) is in the shape of a longitudinally arranged strip. A scale bar (25) is provided on one side of the observation window (26), and the scale bar (25) is located at the 125 ml liquid level of the mannitol infusion bottle.

5. The infusion dosage control device according to claim 1, characterized in that: The tank (11) further comprises a heating assembly (3), the heating assembly (3) comprising a heating chamber (31), a heating wire (32) and a temperature sensor (33), the heating chamber (31) being opened inside the side wall of the tank body (11), the heating chamber (31) storing a heating liquid, the heating wire (32) and the temperature sensor (33) being respectively installed in the heating chamber (31) and respectively electrically connected to the control panel (22).