Infusion bag heating and pressurizing instrument

Abstract

The utility model discloses an infusion bag heating and pressurizing instrument, and belongs to the technical field of infusion. The cabin body is provided with a cabin door, a bearing plate is arranged at the bottom in the cabin body, the side, close to the cabin door, of the bearing plate inclines downwards, and a hook is installed on the side, away from the cabin door, of the bottom in the cabin body; a heater; a pressurizing plate parallel to the bearing plate is mounted at the output end of the driving part, and the driving part is used for driving the pressurizing plate to move. A cabin door is opened, an infusion bag is hung on a hook, the infusion bag is obliquely placed on a bearing plate, the bearing plate is heated through a heater, the bearing plate can conduct heat to the infusion bag, and therefore discomfort of a patient due to the fact that the temperature of medicine is low can be prevented; and the infusion bag between the pressurizing plate and the bearing plate is extruded to realize pressurization, so that the output flow speed of the infusion bag can meet the actual requirement. And the infusion bag is in an inclined state, so that the liquid in the infusion bag can be better ensured to be completely output.

Description

Technical Field

[0001] This utility model relates to the field of infusion technology, and in particular to an infusion bag heating and pressurizing device. Background Technology

[0002] When using infusion bags for medication delivery, insufficient infusion pressure can easily occur if the amount of medication in the bag is low, preventing the medication from entering the patient's body at a suitable rate. Additionally, since the medication is generally below body temperature, prolonged infusions can easily cause discomfort for the patient. Utility Model Content

[0003] The purpose of this utility model is to provide an infusion bag heating and pressurizing device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows: an infusion bag heating and pressurizing device, comprising: a chamber with a door, a support plate at the bottom of the chamber, the support plate being inclined downwards on the side near the door, and a hook installed on the bottom of the chamber away from the door; a heater installed at the bottom of the chamber for heating the support plate; and a drive unit installed at the top of the chamber, with a pressure plate distributed parallel to the support plate installed at the output end of the drive unit, the drive unit being used to move the pressure plate closer to or away from the support plate.

[0005] This technical solution has at least the following beneficial effects: Upon opening the hatch, the infusion bag is hung on the hook, allowing it to rest at an angle on the support plate. The support plate is heated by a heater, enabling it to conduct heat to the infusion bag, thus preventing discomfort to the patient due to low drug temperature. Simultaneously, a driving mechanism presses a pressure plate against the support plate, compressing the infusion bag between the pressure plate and the support plate, ensuring the infusion bag's output flow rate meets actual needs. Furthermore, the infusion bag's tilted position better ensures complete output of the fluid within the bag.

[0006] As a further improvement to the above technical solution, the driving component includes a motor mounted on the top of the chamber, a support block mounted on the top of the pressure plate, and a lead screw threadedly connected to the support block at the motor output end. The pressure plate is slidably mounted on the chamber. The motor drives the lead screw to rotate, causing the support block and the pressure plate to slide relative to the chamber, thus moving closer to or away from the support plate, achieving the effect of pressurizing or depressurizing the infusion bag. Using motor control can improve the accuracy of pressure control.

[0007] As a further improvement to the above technical solution, limit switches connected to the motor are installed at both ends of the lead screw. When the support block moves to the limit switch, the motor stops running. This limits the stroke of the pressure plate, preventing excessive pressure or low pressurization efficiency due to the pressure plate being too far from the support plate.

[0008] As a further improvement to the above technical solution, a guide rod is installed at the top of the cabin, through which the support block passes. Both the guide rod and the lead screw are arranged longitudinally. This can improve the movement stability of the pressure plate and simplify the structure of the drive components.

[0009] As a further improvement to the above technical solution, the support plate is equipped with a pressure sensor. This sensor can be used to detect the pressure exerted by the pressure plate on the infusion bag.

[0010] As a further improvement to the above technical solution, a first controller is also included. The first controller is used to receive the pressure signal from the pressure sensor. When the pressure signal meets a preset condition, it controls the drive component to move, causing the pressure plate to move away from the support plate. For example, if the pressure signal indicates excessive pressure, controlling the drive component to move the pressure plate away from the support plate can improve the safety of pressurizing the infusion bag and prevent abnormal pressure increases when the infusion tube is blocked, thus providing a protective function.

[0011] As a further improvement to the above technical solution, a notch is provided between the cabin body and the cabin door, and an ultrasonic flow sensor is installed on the side wall of the notch. This sensor can be used to detect the flow rate of the infusion tubing on the infusion bag.

[0012] As a further improvement to the above technical solution, a second controller is also included. The second controller receives the flow rate signal from the ultrasonic flow sensor and controls the driving component to move the pressure plate according to the flow rate signal, so that the flow rate signal meets preset conditions. This allows for more stable and accurate control of the drug flow rate from the infusion bag.

[0013] As a further improvement to the above technical solution, the support plate is equipped with a temperature sensor, which can measure the temperature of the medication in the infusion bag.

[0014] As a further improvement to the above technical solution, a third controller is also included. This third controller receives the temperature signal from the temperature sensor and controls the heater to operate based on the temperature signal, ensuring that the temperature signal meets preset conditions. This allows for more stable and accurate control of the drug temperature in the infusion bag. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0018] 100. Cabin; 101. First space; 102. Second space; 103. Notch; 110. Cabin door; 120. Support plate; 130. Hook; 200. Pressure plate; 300. Motor; 310. Support block; 320. Lead screw; 330. Guide rod. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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 or imply 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.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" 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 or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] 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.

[0023] Reference Figure 1-2The infusion bag warming and pressurizing device includes a chamber 100 and a door 110. The chamber 100 is square and open at the front. One side of the door 110 is connected to one side of the chamber 100 by a hinge. When the chamber 100 is closed, it can just cover the open front of the chamber 100, thus creating a relatively enclosed space inside the chamber 100, which helps to keep the interior space warm. The door 110 can be made of transparent material to facilitate observation of the interior of the chamber 100.

[0024] The interior of the cabin 100 is divided into a first space and a second space by multiple partitions. The first space is connected to the opening of the cabin 100, while the second space is blocked by partitions and is not easily seen from the opening of the cabin 100.

[0025] A support plate 120 is provided at the bottom of the chamber 100 in the first space. The support plate 120 is detachably connected to the interior of the chamber 100 by bolts, and the side of the support plate 120 near the opening of the chamber 100 is inclined downwards. A hook 130 is installed at the bottom of the chamber 100 in the first space away from the opening. The end of the infusion bag can be hung on the hook 130, so that the infusion bag can be placed at an angle on the support plate 120.

[0026] A second space 102 portion of the cabin 100 is formed at the top of the cabin 100, and a drive unit is installed inside this second space 102. The drive unit includes a motor 300 and a lead screw 320. The motor 300 is installed in the second space 102 at the top of the cabin 100, and the output end of the motor 300 passes through a partition to the first space 101 and is coaxially connected to the lead screw 320 via a coupling. The lead screw 320 is threadedly connected to a support block 310, and a pressure plate 200 is installed at the bottom of the support block 310. The pressure plate 200 is arranged parallel to the support plate 120.

[0027] The chamber 100 is equipped with two guide rods 330 distributed on both sides of the lead screw 320. Both guide rods 330 pass through the support block 310, allowing the support block 310 to slide relative to the chamber 100 along the guide rods 330. The guide rods 330 and the lead screw 320 are parallel to each other and are longitudinally arranged. The output shaft of the drive motor 300 rotates, causing the lead screw 320 to rotate as well. Under the threaded action between the lead screw 320 and the support block 310, the rotation of the lead screw 320 causes the support block 310 and the pressure plate 200 to move up and down, thus allowing the pressure plate 200 to move closer to or further away from the support plate 120. When the pressure plate 200 is closer to the support plate 120, it pressurizes the infusion bag placed on the support plate 120. When the pressure plate 200 is away from the support plate 120, it can reduce the pressure on the infusion bag placed on the support plate 120. That is, it can pressurize or depressurize the infusion bag to control the flow rate of the medication flowing out of the infusion bag.

[0028] A limit switch, also known as a travel switch, is installed at both ends of the lead screw 320. The limit switches are communicatively connected to the motor 300. When the support block 310 rotates close to the limit switch, the pressure plate 200 is positioned either pressing against the support plate 120 or at a distance from it. At this point, the limit switch activates, generating a limit signal which is sent to the motor 300. Upon receiving the limit signal, the motor 300 stops rotating. It is understood that the motor 300 can rotate in the opposite direction, moving the support block 310 away from the limit switch. Therefore, the two limit switches limit the range of motion of the pressure plate 200, preventing excessive downward pressure and ensuring that the pressure plate 200 is not too far from the support plate 120, thus preventing low pressurization efficiency.

[0029] In other embodiments, the driving component can also be a telescopic cylinder. The output end of the telescopic cylinder faces downward and is connected to the pressure plate 200. By driving the telescopic cylinder, the pressure plate 200 can be moved up and down, thereby moving closer to or further away from the support plate 120. When the pressure plate 200 is close to the support plate 120, it can pressurize the infusion bag placed on the support plate 120. When the pressure plate 200 is away from the support plate 120, it can depressurize the infusion bag placed on the support plate 120. That is, it can pressurize or depressurize the infusion bag to control the flow rate of the medication flowing out of the infusion bag.

[0030] The chamber 100 is also equipped with a first controller. Two pressure sensors are installed on the top surface of the support plate 120. The pressure sensors are communicatively connected to the first controller, which is in turn communicatively connected to the motor 300. The pressure signals from the pressure sensors are transmitted to the first controller, which determines whether the pressure value in the pressure signal is greater than a preset value. When the pressure value is greater than the preset value, the first controller sends a control signal to the motor 300, causing the motor 300 to stop pressurizing and drive the pressure plate 200 away from the support plate 120. This prevents the infusion bag from bursting due to continued pressurization after the infusion tubing becomes blocked, thus ensuring the safety of pressurization.

[0031] A second controller is also installed inside the chamber 100. A notch 103 is provided between the bottom front side of the chamber 100 and the door 110, allowing the infusion tube of the infusion bag to extend out. An ultrasonic flow sensor is installed on the side wall of the notch 103. The second controller is communicatively connected to the ultrasonic flow sensor and the motor 300. The flow rate signal generated by the ultrasonic flow sensor is transmitted to the second controller, which determines whether the flow rate value in the flow rate signal is within a preset range. When the flow rate value is greater than the preset range, the second controller sends a deceleration signal to the motor 300, causing the motor 300 to drive the pressure plate 200 to move away from the support plate 120, thereby reducing the pressure on the infusion bag and reducing the flow rate value of the infusion tube to meet the preset range. When the flow rate is less than the preset range, the second controller sends an acceleration signal to the motor 300, which drives the pressure plate 200 to move closer to the support plate 120, thereby pressurizing the infusion bag and increasing the flow rate of the infusion tube to meet the preset range.

[0032] A second space 102 portion of the chamber 100 is formed at the bottom of the chamber 100, and a heater, which is a PTC electric heater, is installed inside the chamber 100 in this second space 102. The electric heater can be used to heat the support plate 120, thereby heating the infusion bag placed on it by the heated support plate 120.

[0033] The chamber 100 is also equipped with a third controller, and a temperature sensor is located on the top of the support plate 120. The temperature sensor is communicatively connected to the third controller, which in turn is communicatively connected to the heater. The temperature signal generated by the temperature sensor is transmitted to the third controller, which determines whether the temperature value in the signal is within a preset range. When the temperature value is greater than the preset range, the third controller sends a cooling signal to the heater, causing the heater to stop operating and allowing the infusion bag to cool down naturally. When the temperature value is less than the preset range, the third controller sends a heating signal to the heater, causing the heater to heat the support plate 120, thereby raising the temperature of the infusion bag and ensuring that the temperature of the infusion bag remains within the preset range.

[0034] In other embodiments, a second temperature sensor can be installed on the side wall of the notch, so that the second temperature sensor can detect the temperature of the infusion tube on the infusion bag. The temperature signal of the second temperature sensor is also sent to the third controller, so that the third controller combines the temperature signals of the two temperature sensors to make a comprehensive judgment on the temperature in the infusion bag, thereby making a more reasonable control strategy and improving the temperature regulation capability of the infusion bag.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for heating and pressurizing infusion bags, characterized in that, include: The cabin is equipped with a hatch, and a support plate is provided at the bottom of the cabin. The support plate is inclined downward on the side near the hatch, and a hook is installed at the bottom of the cabin away from the hatch. A heater is installed at the bottom of the cabin, and the heater is used to heat the support plate; A drive unit is installed on the top of the cabin. A pressure plate is installed at the output end of the drive unit, which is parallel to the support plate. The drive unit is used to move the pressure plate closer to or away from the support plate.

2. The infusion bag heating and pressurizing device according to claim 1, characterized in that: The driving component includes a motor installed on the top of the cabin, a support block installed on the top of the pressure plate, a lead screw threadedly connected to the support block installed at the output end of the motor, and the pressure plate slidably installed in the cabin.

3. The infusion bag heating and pressurizing device according to claim 2, characterized in that: Both ends of the lead screw are equipped with limit switches that are communicatively connected to the motor. When the support block moves to the limit switch, the motor stops running.

4. The infusion bag heating and pressurizing device according to claim 2, characterized in that: A guide rod is installed at the top of the cabin, through which the support block passes. Both the guide rod and the lead screw are arranged longitudinally.

5. The infusion bag heating and pressurizing device according to claim 1, characterized in that: The support plate is equipped with a pressure sensor.

6. The infusion bag heating and pressurizing device according to claim 5, characterized in that: It also includes a first controller, which is used to receive the pressure signal from the pressure sensor and control the drive component to move when the pressure signal meets a preset condition, so that the pressure plate moves away from the support plate.

7. The infusion bag heating and pressurizing device according to claim 1, characterized in that: A gap is provided between the cabin body and the cabin door, and an ultrasonic flow sensor is installed on the side wall of the gap.

8. The infusion bag heating and pressurizing device according to claim 7, characterized in that: It also includes a second controller, which is used to receive the flow rate signal from the ultrasonic flow sensor and control the drive to move the pressure plate according to the flow rate signal so that the flow rate signal meets preset conditions.

9. The infusion bag heating and pressurizing device according to claim 1, characterized in that: The support plate is equipped with a temperature sensor.

10. The infusion bag heating and pressurizing device according to claim 9, characterized in that: It also includes a third controller, which is used to receive the temperature signal from the temperature sensor and control the heater to operate according to the temperature signal so that the temperature signal meets preset conditions.

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