Speed control heating instrument

Abstract

The utility model discloses a speed control heating instrument which comprises an infusion pump and a second drip chamber, a pump inlet of the infusion pump is provided with a liquid inlet pipe used for being connected to an infusion container, the bottom of the second drip chamber is connected with a patient end pipeline, and a heating module is connected between the top of the second drip chamber and a pump outlet of the infusion pump. When the infusion device is used, the infusion container is connected to the liquid inlet pipe, the infusion pump and the heating module are started, and infusion and heating of liquid to be infused can be achieved; by setting the rotating speed of the infusion pump, accurate control over the infusion speed can be achieved, medical staff can know the infusion speed clearly at a glance, the use requirement is met, and use is convenient; in addition, the second drip chamber is arranged on the downstream of the heating module, bubbles generated in the liquid passing through the heating module can be separated out at the second drip chamber, and the bubbles are prevented from being input into the human body.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a speed-controlled heating device. Background Technology

[0002] Currently, heated infusion mainly uses the method of squeezing the drug bag to pressurize the liquid for smooth injection into the human body, and then uses a warmer or preheats the liquid. This infusion method only has the functions of pressurization and warming, which is relatively simple. If more functions are needed during treatment, multiple devices need to be shared, which takes up a lot of space and is inconvenient to use. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a speed-controlled heating device.

[0004] According to an embodiment of the present invention, a speed-controlled heating device includes an infusion pump and a second drip chamber. The infusion pump has an inlet pipe for connecting to an infusion container at its inlet. The bottom of the second drip chamber is connected to a patient end pipe, and a heating module is connected between the top of the second drip chamber and the outlet of the infusion pump.

[0005] The speed-controlled heating device according to the embodiments of this utility model has at least the following technical effects: In use, the infusion container is connected to the infusion pipe, and the infusion pump and heating module are started to realize the infusion and heating of the liquid to be infused; by setting the rotation speed of the infusion pump, this utility model can also realize precise control of the infusion speed, allowing medical staff to clearly understand the infusion speed, meeting the usage needs and facilitating use; in addition, by setting a second drip chamber downstream of the heating module, air bubbles generated in the liquid after passing through the heating module can be separated at the second drip chamber, preventing air bubbles from entering the human body.

[0006] According to some embodiments of the present invention, the patient end tubing is provided with a clamp valve and a bubble detector for controlling the opening and closing of the clamp valve, the bubble detector being located between the clamp valve and the second drip chamber.

[0007] According to some embodiments of the present invention, a vent valve is connected to the top of the second dripping bucket, and the second dripping bucket is provided with a second liquid level sensor for controlling the vent valve to close and a third liquid level sensor for controlling the vent valve to open, with the second liquid level sensor located above the third liquid level sensor.

[0008] According to some embodiments of the present invention, the speed-controlled heating instrument further includes a water-blocking and venting valve, which is connected in series between the venting valve and the second dripping bucket.

[0009] According to some embodiments of the present invention, a pressure sensor is provided at the top of the second dripping bucket.

[0010] According to some embodiments of the present invention, the liquid inlet pipe is equipped with a first liquid level sensor.

[0011] According to some embodiments of the present invention, the liquid inlet pipe is provided with a first drip chamber.

[0012] According to some embodiments of the present invention, a filter is provided inside the first dripping bucket.

[0013] According to some embodiments of the present invention, the top of the first dripping bucket is provided with an exhaust hole, and the first dripping bucket is provided with a float ball for opening or closing the exhaust hole.

[0014] According to some embodiments of this utility model, the infusion pump is a roller pump.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of the speed-controlled heating instrument according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the first drip chamber in one embodiment of the present invention;

[0019] In the attached image:

[0020] 100-Infusion container; 110-Inlet tube; 200-First drip chamber; 210-Filter; 220-Waterproof vent valve; 230-Float; 310-First liquid level sensor; 320-Second liquid level sensor; 330-Third liquid level sensor; 400-Roller pump; 500-Heating module; 600-Second drip chamber; 610-Vent valve; 620-Water-blocking vent valve; 630-Pressure sensor; 700-Bubble detector; 800-Pinch valve; 900-Patient end tubing. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number, while "above," "below," "within," etc., are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] The following is for reference. Figure 1 and Figure 2 This invention describes a speed-controlled heating device according to an embodiment of the present invention.

[0025] The speed-controlled heating device of this utility model includes an infusion pump and a second drip chamber 600. The pump inlet of the infusion pump is provided with an inlet pipe 110 for connecting to an infusion container 100. The bottom of the second drip chamber 600 is connected to a patient end pipe 900, which is used to connect to an infusion needle for infusion to the patient. A heating module 500 is connected between the top of the second drip chamber 600 and the pump outlet of the infusion pump. The heating module 500 has a heating inlet and a heating outlet. The heating module 500 is a conventional component in the art, and its specific structure will not be described in detail here. A connecting pipe is provided at the top of the second drip chamber 600, and the two ends of the connecting pipe are respectively connected to the top of the second drip chamber 600 and the heating outlet of the heating module 500.

[0026] In use, connect the infusion container to the inlet pipe 110, start the infusion pump and heating module 500 to realize the infusion and heating of the liquid to be infused. By setting the speed of the infusion pump, this invention can also achieve precise control of the infusion rate, allowing medical staff to clearly understand the infusion rate, meeting usage needs and facilitating use. At the same time, the instrument can count the total infusion volume, eliminating the need for medical staff to count the fluid bag later. In addition, it is understood that as the temperature of the liquid increases, the solubility of gaseous substances in the liquid will decrease, resulting in the formation of bubbles. This invention sets a second drip chamber 600 downstream of the heating module 500, so that the bubbles generated in the liquid after passing through the heating module 500 can be separated at the second drip chamber 600, preventing bubbles from entering the body. There is no need to squeeze the infusion container, making it widely applicable. The infusion container can be made of hard plastic bottles, glass bottles, or soft bags.

[0027] In some embodiments of this utility model, the patient-end tubing is equipped with a clamp valve 800 and a bubble detector 700 for controlling the opening and closing of the clamp valve 800. The bubble detector 700 is located between the clamp valve 800 and the second drip chamber 600. Both the clamp valve 800 and the bubble detector 700 are conventional components in the art, and their specific structures will not be described in detail here. Both the clamp valve 800 and the bubble detector 700 can be directly fitted onto the outside of the patient-end tubing, making them easy to use. The speed-controlled heating device also includes a control module. Both the clamp valve 800 and the bubble detector 700 are electrically connected to the control module. The control module is configured to control the opening and closing of the clamp valve 800 based on the detection signal sent by the bubble detector 700. When an unexpected situation occurs causing bubbles to exit from the bottom of the second drip chamber 600, the bubble detector 700 detects the bubbles, and the clamp valve 800 closes, cutting off the flow of liquid in the patient-end tubing and preventing bubbles from entering the body.

[0028] In some embodiments of this utility model, a vent valve 610 is connected to the top of the second dripping bucket, and the second dripping bucket 600 is provided with a second liquid level sensor 320 for controlling the vent valve 610 to close and a third liquid level sensor 330 for controlling the vent valve 610 to open. The second liquid level sensor 320 is located above the third liquid level sensor 330. The vent valve 610 is a normally closed valve. The second liquid level sensor 320, the third liquid level sensor 330, and the vent valve 610 are all electrically connected to the control module. The control module is configured to control the opening of the vent valve 610 based on the detection signal sent by the third liquid level sensor 330. When the liquid level in the second dripping bucket 600 drops to the detection area of ​​the third liquid level sensor 330, the vent valve 610 opens to release gas. The control module is also configured to control the closing of the vent valve 610 based on the detection signal sent by the second liquid level sensor 320. When the liquid level in the second dripping bucket 600 rises to the detection area of ​​the second liquid level sensor 320, the vent valve 610 closes to stop releasing gas. This also enables automatic venting of the second dripping bucket 600, eliminating the need for medical personnel to manually vent the gas from the second dripping bucket 600 periodically, thus simplifying its use.

[0029] In some embodiments of this utility model, the speed-controlled heating instrument further includes a water-blocking and air-venting valve 620, which is connected in series between the venting valve 610 and the second dripping bucket 600. The top of the second dripping bucket 600 is provided with an air vent pipe, and the end of the air vent pipe is provided with the water-blocking and air-venting valve 620 and the venting valve 610, thus preventing the liquid in the second dripping bucket 600 from being discharged and preventing the liquid in the second dripping bucket 600 from entering the venting valve 610.

[0030] In some embodiments of this invention, a pressure sensor 630 is provided at the top of the second drip chamber 600. Both the display panel of the speed-controlled heating instrument and the pressure sensor 630 are electrically connected to the control module. The control module is configured to turn on or off the pressure warning light on the display panel based on the pressure signal sent by the pressure sensor 630. The pressure sensor 630 constantly monitors the pressure in the tubing and can also detect whether the tubing is blocked. By monitoring the pressure of the infusion tubing through the pressure sensor 630, problems such as mismatch between the infusion rate and the needle, and tubing blockage can be identified, thereby issuing an alarm to ensure the safety of the infusion. The pressure sensor 630 and the vent valve 610 are connected in parallel on the side of the water-blocking and air-venting valve 620 away from the second drip chamber 600, so that the water-blocking and air-venting valve 620 can also prevent liquid in the second drip chamber 600 from entering the pressure sensor 630, and also isolate bacteria from entering the tubing.

[0031] In some embodiments of this utility model, the inlet pipe 110 is equipped with a first liquid level sensor 310. Both the display panel of the speed-controlled heating instrument and the first liquid level sensor 310 are electrically connected to the control module. The control module is configured to turn on or off the corresponding warning light on the display panel based on the detection signal sent by the first liquid level sensor 310; thus, when the first liquid level sensor 310 detects no liquid level during the infusion process, it issues a prompt for medical personnel to replace the infusion bag, and the infusion continues only after the infusion bag is replaced.

[0032] In some embodiments of this invention, the inlet pipe 110 is provided with a first drip chamber 200. When the inlet pipe 110 is also provided with a first liquid level sensor 310, the first drip chamber 200 can be positioned between the first liquid level sensor 310 and the infusion pump, or the first liquid level sensor 310 can be positioned between the first drip chamber 200 and the infusion pump. When the liquid in the infusion container is depleted and medical staff replace the infusion container, the liquid in the first drip chamber 200 can still provide normal infusion, and the first drip chamber 200 can separate out air bubbles generated during the replacement of the infusion container.

[0033] In some embodiments of this invention, a filter 210 is provided inside the first drip chamber 200. The filter 210 can be located at the liquid outlet at the bottom of the first drip chamber 200. In this way, the first drip chamber 200 can filter out larger particles, making the infusion safer.

[0034] In some embodiments of this utility model, the top of the first dripping bucket 200 is provided with an exhaust hole, and a float 230 for opening or closing the exhaust hole is provided inside the first dripping bucket 200. A vertically extending chute is provided inside the first dripping bucket 200, with the exhaust hole located at the top of the chute and the float 230 located inside the chute. The float 230 can be a hollow or solid component, sufficient to float and block the exhaust hole. Through holes are provided on the bottom and side walls of the chute. When the liquid level in the first dripping bucket 200 is high, buoyancy lifts the float 230 to block the exhaust hole. When the gas level in the first dripping bucket 200 increases and the liquid level decreases, the float 230 descends, opening the exhaust hole and achieving the purpose of automatically discharging the gas from the first dripping bucket 200. The exhaust hole may also be equipped with a water-proof and breathable valve 220 to prevent the discharge of liquid from the first dripping bucket 200.

[0035] In some embodiments of this invention, the infusion pump is a roller pump 400. The roller pump 400 can be used simply by being fitted onto the outside of the tubing, making it easy to use.

[0036] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A speed-controlled heating device, characterized in that: It includes an infusion pump and a second drip chamber. The infusion pump has an inlet pipe for connecting to an infusion container at its pump inlet. The bottom of the second drip chamber is connected to a patient end pipe. A heating module is connected between the top of the second drip chamber and the pump outlet of the infusion pump. The patient-end tubing is equipped with a clamp valve and a bubble detector for controlling the opening and closing of the clamp valve. The bubble detector is located between the clamp valve and the second drip chamber. The top of the second dripping bucket is connected to a vent valve. The second dripping bucket is equipped with a second liquid level sensor for controlling the vent valve to close and a third liquid level sensor for controlling the vent valve to open. The second liquid level sensor is located above the third liquid level sensor. It also includes a water-blocking and air-venting valve, which is connected in series between the air venting valve and the second dripping bucket; The inlet pipe is equipped with a first drip chamber.

2. The speed-controlled heating device according to claim 1, characterized in that: A pressure sensor is installed at the top of the second drip chamber.

3. The speed-controlled heating device according to claim 1, characterized in that: The inlet pipe is equipped with a first liquid level sensor.

4. The speed-controlled heating device according to claim 1, characterized in that: The first dropper is equipped with a filter.

5. The speed-controlled heating device according to claim 1, characterized in that: The top of the first dripping container is provided with an exhaust hole, and the first dripping container is provided with a float ball for opening or closing the exhaust hole.

6. The speed-controlled heating device according to claim 1, characterized in that: The infusion pump is a roller pump.

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