Intelligent injection pump and working method thereof

Abstract

The invention relates to the technical field of injection pumps, in particular to an intelligent injection pump and a working method thereof.The intelligent injection pump comprises a shell, a control panel is arranged on one side of one end of the shell, a containing cavity is formed in the other side of one end of the shell, a vibration mechanism is arranged in the middle of the containing cavity, and a sediment detection sensor is arranged in the containing cavity; through the arrangement of a stepping motor, a rolling wheel and a movable wheel, after a sediment detection sensor detects that medicaments in the injector are mixed to generate sediment, the rolling wheel is controlled to rotate, so that the movable wheel periodically collides with the outer wall of the injector, and the sediment in the injector is scattered; the influence on the injection effect due to precipitation caused by medicament reaction in the injector is prevented; in addition, after the functions of a computing system and a voice broadcast system are added inside, the monitoring quality can be effectively improved, and risks caused by infusion are completely eradicated.

Description

Technical Field

[0001] The present invention relates to the technical field of injection pumps, in particular to an intelligent injection pump and a working method thereof. Background Art

[0002] A syringe pump is a medical device consisting of a stepper motor, its driver, a lead screw, and a bracket. They can be categorized by application into medical and non-medical applications, as well as laboratory microinjection pumps and industrial syringe pumps. By number of channels, they can be divided into single-channel and multi-channel (dual-channel, quad-channel, six-channel, eight-channel, ten-channel, etc.). By operating mode, they can be divided into single-push, push-pull, and bidirectional push-pull modes. By structure, they can be divided into split and combined types, among others.

[0003] In the prior art, since the injection speed of the syringe pump is controllable during use, the liquid medicine inside the syringe is prone to react during the slow injection process, resulting in precipitation, which affects the injection effect. Summary of the Invention

[0004] The object of the present invention is to provide an intelligent injection pump and a working method thereof to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent injection pump and a working method thereof, comprising:

[0007] A shell, a control panel is provided on one side of one end of the shell, a handle is provided on the top of the shell, a accommodating cavity is provided on the other side of one end of the shell, a vibration mechanism is provided in the middle of the accommodating cavity, a door panel is provided on the other side of one end of the shell, and a fixing clip is provided in the middle of the accommodating cavity.

[0008] Furthermore, a handle is fixedly connected to the top of the shell, a accommodating cavity is opened on one side of one end of the shell, a sedimentation detection sensor is provided in the part of the accommodating cavity below the fixing clamp, a power switch is provided at the bottom of the other end of the shell, and an alarm is also provided on the shell, a fixing clamp is slidably connected to the middle of the accommodating cavity, a bidirectional screw rod is provided on the inner side of the fixing clamp, the bidirectional screw rod is installed on the connecting seat, the bidirectional screw rod is rotatably connected to the connecting seat, a push plate is provided on one side of the fixing clamp, the push plate is slidably connected to the accommodating cavity, a connecting rod is provided on one side of the push plate, and the control panel controls the movement of the push plate through the connecting rod.

[0009] Furthermore, a control panel is fixedly connected to the other side of one end of the shell, a computing system is arranged in the control panel, a power indicator light is fixedly connected to one side of the top of the control panel, an alarm indicator light is fixedly connected to the middle of the top of the control panel, a fault indicator light is fixedly connected to the other side of the top of the control panel, a cumulative infusion volume display screen is fixedly connected to the control panel below the power indicator light, a reset button is fixedly connected to one side of the cumulative infusion volume display screen, a liquid crystal display screen is fixedly connected to the middle of the control panel, a number of function selection buttons are fixedly connected to the bottom of the control panel, an infusion indicator light is fixedly connected to the middle of the bottom of the control panel, and a fast-forward button is fixedly connected to the control panel below the infusion indicator light.

[0010] Furthermore, a vibration mechanism is fixedly connected to the middle of the accommodating cavity, a door hook seat is fixedly connected to one side of the accommodating cavity, a door panel is rotatably connected to the other side of the accommodating cavity, a plurality of hinges are evenly fixedly connected to one side of the door panel, and the other side of the hinge is rotatably connected to one side of the accommodating cavity.

[0011] Furthermore, the vibration mechanism is composed of a fixed seat, a roller, a movable wheel, a driven gear, a driving gear and a stepper motor. One side of the fixed seat is fixedly connected to the inner wall of the shell, the middle part of the fixed seat is rotatably connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to the roller, the surface of the roller is evenly provided with a number of grooves, the interior of the groove is provided with a rotatable movable wheel, the movable wheel slides in the groove, one end of the rotating shaft is fixedly connected to the driven gear, one side of the fixed seat is fixedly connected to the stepper motor, the output end of the stepper motor is connected to the driving gear through a spline, and the surface of the driving gear is meshed with the surface of the driven gear.

[0012] Furthermore, a sliding rod is fixedly connected to the inner wall surface of the door panel, and two sliding rods are provided. The two sliding rods are symmetrically distributed up and down on the inner wall surface of the door panel, and the other end of the sliding rod is slidably connected to a sleeve, and the other end of the sleeve is fixedly connected to an arc plate, and the inner diameter of the arc plate is equal to the diameter of the roller. A spring is sleeved on the surface of the sleeve, and one end of the spring abuts against the inner wall surface of the door panel, and the other end of the spring abuts against one side of the arc plate.

[0013] Furthermore, one side of the door panel is rotatably connected to a door panel, the middle of the door panel is rotatably connected to a bayonet, both ends of the bayonet are rotatably connected to the middle of the door panel, one end of the door panel is fixedly connected to a hook, and the hook and the door hook seat are cooperatively connected.

[0014] Furthermore, the working method includes:

[0015] S1: First, clamp the fixing clamp on the column, and rotate the bidirectional screw to make the bidirectional screw rotate, so that the fixing clamp slides outward, so that the fixing clamp is opened, which is convenient for clamping and fixing the syringe. Then, the push plate is controlled by the control panel to push the syringe piston rod to control the syringe to inject, and the injection speed is controlled by the movement rate of the push plate;

[0016] S2: Adjust the infusion speed through the control panel 2. The alarm will broadcast the adjusted speed once. Press the button to input the total input liquid ml and the total infusion time. The internal calculation system will automatically calculate the infusion speed after the input, or you can directly enter the numerical speed to input the syringe.

[0017] S3: After the sediment detection sensor detects the sediment inside the syringe, the stepper motor drives the roller to rotate through the driving gear and the driven gear, controlling the rotation of the roller so that the movable wheel on the roller surface periodically collides with the syringe body to break up the sediment inside the syringe;

[0018] S4: By setting the cumulative infusion volume display screen, the cumulative infusion volume is calculated and the value is displayed on the cumulative infusion volume display screen, so as to achieve a more intuitive effect of observing the cumulative infusion volume. The infusion speed is adjusted through the control panel, and the alarm voice broadcasts the adjusted speed once. The total input liquid ml and the total infusion time are entered by key. The internal calculation system automatically calculates the infusion speed after the input, or the numerical speed can be directly entered.

[0019] S5: Then close the door panel, pass the infusion tube through the accommodating cavity, close the door panel and rotate the door panel so that the hook is clamped inside the door hook seat, so that the arc plate is against the roller to protect the roller and the movable wheel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention is provided with a fixing clamp. When in use, the bidirectional screw is rotated, and the rotation of the bidirectional screw drives the fixing clamp to slide inward and outward. The fixing clamp slides inward to clamp the syringe, and slides outward to facilitate the installation of the syringe, thereby achieving the effect of facilitating the installation and removal of the syringe.

[0022] Through the arrangement of the stepper motor, the roller and the movable wheel, after the precipitation detection sensor detects that the mixture of the medicines in the syringe produces precipitation, the roller is controlled to rotate so that the movable wheel periodically collides with the outer wall of the syringe, thereby breaking up the precipitation in the syringe and preventing the reaction of the medicines in the syringe from causing precipitation and affecting the injection effect;

[0023] The injection of trace amounts of liquid medicine is realized, and after adding the functions of the internal calculation system and voice broadcast system design, the quality of monitoring can be effectively improved and the risks caused by infusion can be eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the accommodating cavity structure of the present invention;

[0026] Figure 3 Schematic diagram of the internal structure of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the vibration mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the roller structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of a door panel of the present invention;

[0030] Figure 7 For the present invention Figure 6 A is an enlarged structural diagram;

[0031] Figure 8 This is a schematic diagram of the door handle structure of the present invention;

[0032] Figure 9 This is the injection control flow chart of the present invention.

[0033] In the figure: 1. Shell; 101. Accommodating chamber; 102. Handle; 103. Sedimentation detection sensor; 2. Control panel; 201. Power indicator light; 202. Alarm indicator light; 203. Fault indicator light; 204. Accumulated infusion volume display; 205. Reset button; 206. LCD screen; 207. Function selection button; 208. Infusion indicator light; 209. Fast forward button; 3. Fixing clip; 4. Bidirectional screw; 5. Connecting seat; 6. Push plate; 601. Connecting rod; 7. Vibrating mechanism; 701. Fixed seat; 702. Rotating shaft; 703. Roller; 704. Groove; 705. Movable wheel; 706. Driven gear; 707. Stepping motor; 708. Driving gear; 8. Door hook seat; 9. Door panel; 901. Hinge; 10. Sliding rod; 11. Sleeve; 12. Arc plate; 13. Spring; 14. Door handle; 15. Pin; 16. Hook. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0035] Example 1:

[0036] See also Figures 1 to 9 The present invention provides a technical solution: an intelligent injection pump and a working method thereof, comprising:

[0037] A shell 1 is provided with a control panel 2 on one side of one end of the shell 1, a handle 102 is provided at the top of the shell 1, a receiving cavity 101 is provided on the other side of one end of the shell 1, a vibration mechanism 7 is provided in the middle of the receiving cavity 101, a door panel 9 is provided on the other side of one end of the shell 1, and a fixing clip 3 is provided in the middle of the receiving cavity 101.

[0038] The syringe is clamped and fixed by the fixing clamp 3, which makes it easy to install and remove the syringe.

[0039] Example 2:

[0040] The structure of the intelligent syringe pump and its working method disclosed in the second embodiment of the present invention is basically the same as that in the first embodiment, except that:

[0041] The top of the shell 1 is fixedly connected to a handle 102, and a accommodating cavity 101 is opened on one side of one end of the shell 1. The part of the accommodating cavity 101 located below the fixing clamp 3 is provided with a sedimentation detection sensor 103, and the bottom of the other end of the shell 1 is provided with a power switch. The shell 1 is also provided with an alarm, and the middle part of the accommodating cavity 101 is slidably connected to the fixing clamp 3, and a bidirectional screw rod 4 is provided on the inner side of the fixing clamp 3, and the bidirectional screw rod 4 is installed on the connecting seat 5, and the bidirectional screw rod 4 is rotatably connected to the connecting seat 5. A push plate 6 is provided on one side of the fixing clamp 3, and the push plate 6 is slidably connected to the accommodating cavity 101. A connecting rod 601 is provided on one side of the push plate 6, and the control panel 2 controls the movement of the push plate 6 through the connecting rod 601.

[0042] The opening and closing of the fixing clamp 3 is controlled by the bidirectional screw 4. After the fixing clamp 3 clamps and fixes the syringe, the push plate 6 is controlled by the control panel 2 to push the piston rod of the syringe to slide and push out the medicine in the syringe.

[0043] Example 3:

[0044] The structure of the intelligent syringe pump and its working method disclosed in the third embodiment of the present invention is basically the same as that in the second embodiment, except that:

[0045] A control panel 2 is fixedly connected to the other side of one end of the shell 1, and a computing system is arranged in the control panel 2. A power indicator light 201 is fixedly connected to one side of the top of the control panel 2, an alarm indicator light 202 is fixedly connected to the middle of the top of the control panel 2, and a fault indicator light 203 is fixedly connected to the other side of the top of the control panel 2. A cumulative infusion volume display screen 204 is fixedly connected to the control panel 2 below the power indicator light 201, a reset button 205 is fixedly connected to one side of the cumulative infusion volume display screen 204, a liquid crystal display screen 206 is fixedly connected to the middle of the control panel 2, and several function selection buttons 207 are fixedly connected to the bottom of the control panel 2. An infusion indicator light 208 is fixedly connected to the middle of the bottom of the control panel 2, and a fast-forward button 209 is fixedly connected to the control panel 2 below the infusion indicator light 208.

[0046] A vibration mechanism 7 is fixedly connected to the middle of the accommodating chamber 101, a door hook seat 8 is fixedly connected to one side of the accommodating chamber 101, and a door panel 9 is rotatably connected to the other side of the accommodating chamber 101. Several hinges 901 are evenly fixedly connected to one side of the door panel 9, and the other side of the hinge 901 is rotatably connected to one side of the accommodating chamber 101.

[0047] After plugging in the power supply, the power indicator light 201 lights up. When the syringe input rate deviates from the predetermined rate, the alarm indicator light 202 lights up. When the entire device is damaged, the fault indicator light 203 lights up. During the syringe delivery process, the infusion indicator light 208 lights up. The fast forward button 209 can be used to discharge the excess medicine remaining inside the syringe after the injection is completed. The overall function of the device can be set and adjusted through several function selection buttons 207, and this part of the content is displayed on the LCD screen 206.

[0048] By setting the cumulative infusion volume display screen 204, the cumulative infusion volume will be calculated and the value will be displayed on the cumulative infusion volume display screen 204, thereby achieving a more intuitive effect of observing the cumulative infusion volume.

[0049] By adding a computing system to the control panel, the infusion rate of the syringe pump can be effectively ensured, the quality of monitoring can be effectively improved, and the risks caused by infusion can be eliminated.

[0050] Example 4:

[0051] The structure of the intelligent injection pump and its working method disclosed in the fourth embodiment of the present invention is basically the same as that in the third embodiment, except that:

[0052] The vibration mechanism 7 consists of a fixed base 701, a roller 703, a movable wheel 705, a driven gear 706, a driving gear 708 and a stepping motor 707. One side of the fixed base 701 is fixedly connected to the inner wall of the shell 1. The middle part of the fixed base 701 is rotatably connected to the rotating shaft 702. The surface of the rotating shaft 702 is fixedly connected to the roller 703. The surface of the roller 703 is evenly provided with a number of grooves 704. The interior of the groove 704 is provided with a rotatable movable wheel 705. The movable wheel 705 slides in the groove 704. One end of the rotating shaft 702 is fixedly connected to the driven gear 706. One side of the fixed base 701 is fixedly connected to the stepping motor 707. The output end of the stepping motor 707 is splined to the driving gear 708. The surface of the driving gear 708 is meshed with the surface of the driven gear 706.

[0053] The inner wall surface of the door panel 9 is fixedly connected with a sliding rod 10, and two sliding rods 10 are provided. The two sliding rods 10 are symmetrically distributed up and down on the inner wall surface of the door panel 9. The other end of the sliding rod 10 is slidably connected with a sleeve 11, and the other end of the sleeve 11 is fixedly connected with an arc plate 12. The inner diameter of the arc plate 12 is equal to the diameter of the roller 703. A spring 13 is sleeved on the surface of the sleeve 11, and one end of the spring 13 abuts against the inner wall surface of the door panel 9, and the other end of the spring 13 abuts against one side of the arc plate 12.

[0054] One side of the door panel 9 is rotatably connected to a door panel 14, the middle of the door panel 14 is rotatably connected to a bayonet 15, both ends of the bayonet 15 are rotatably connected to the middle of the door panel 9, one end of the door panel 14 is fixedly connected to a hook 16, and the hook 16 and the door hook seat 8 are mutually cooperated and connected.

[0055] The specific steps are:

[0056] First, clamp the fixing clamp 3 on the column, and rotate the bidirectional screw rod 4 to drive the fixing clamp 3 to slide outward, so that the fixing clamp 3 is opened, which is convenient for clamping and fixing the syringe. The control panel 2 is used to control the push plate 6 to push the syringe piston rod to control the syringe to inject, and the injection speed is controlled by the movement rate of the push plate 6;

[0057] Adjust the infusion speed through the control panel 2, the alarm voice broadcasts the adjusted speed once, press the button to input the total input liquid ml and the total infusion time, the internal calculation system automatically calculates the infusion speed after the input, or directly enter the numerical speed to input the syringe.

[0058] After the infusion parameters are set using the function selection button 207 on the control panel 2, the sediment detection sensor 103 detects sediment inside the syringe, and the stepping motor 707 drives the roller 703 to rotate through the driving gear 708 and the driven gear 706. The control roller 703 rotates so that the movable wheel 705 on the surface of the roller 703 periodically collides with the syringe body, thereby breaking up the sediment inside the syringe.

[0059] By setting the cumulative infusion volume display screen 204, the cumulative infusion volume is calculated and the numerical value is displayed on the cumulative infusion volume display screen 204, so as to achieve a more intuitive effect of observing the cumulative infusion volume. The infusion speed is adjusted through the control panel 2, and the alarm voice broadcasts the adjusted speed once. The total input liquid ml and the total infusion time are input by key, and the internal calculation system automatically calculates the infusion speed after the input, or the numerical speed is directly input;

[0060] Then close the door panel 9, pass the infusion tube through the accommodating cavity 101, then close the door panel 9 and rotate the door panel 14 so that the hook 16 is clamped inside the door hook seat 8, so that the arc plate 12 is against the roller 703, protecting the roller 703 and the movable wheel 705.

[0061] Set the total liquid input ml to A, the total infusion time to B, and the speed to C. After entering A and B on control panel 2, you cannot enter C.

[0062] After entering C on control panel 2, you cannot enter values for A and B.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0064] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An intelligent injection pump, characterized in that: include: A shell (1) is provided with a control panel (2) on one side of one end of the shell (1), a handle (102) is provided at the top end of the shell (1), a receiving cavity (101) is provided on the other side of one end of the shell (1), a vibration mechanism (7) is provided in the middle of the receiving cavity (101), a door panel (9) is provided on the other side of one end of the shell (1), and a fixing clamp (3) is provided in the middle of the receiving cavity (101).

2. The intelligent injection pump according to claim 1, characterized in that: The top of the shell (1) is fixedly connected with a handle (102), one side of one end of the shell (1) is provided with a accommodating chamber (101), the part of the accommodating chamber (101) located below the fixing clamp (3) is provided with a sedimentation detection sensor (103), the bottom of the other end of the shell (1) is provided with a power switch, and the shell (1) is also provided with an alarm, the middle part of the accommodating chamber (101) is slidably connected with the fixing clamp (3), the inner side of the fixing clamp (3) is provided with a bidirectional screw rod (4), the bidirectional screw rod (4) is installed on the connecting seat (5), the bidirectional screw rod (4) is rotatably connected to the connecting seat (5), a push plate (6) is provided on one side of the fixing clamp (3), the push plate (6) is slidably connected to the accommodating chamber (101), a connecting rod (601) is provided on one side of the push plate (6), and the control panel (2) controls the movement of the push plate (6) through the connecting rod (601).

3. The intelligent injection pump according to claim 2, characterized in that: The other side of one end of the housing (1) is fixedly connected to a control panel (2), wherein a computing system is arranged in the control panel (2), a power indicator light (201) is fixedly connected to one side of the top of the control panel (2), an alarm indicator light (202) is fixedly connected to the middle of the top of the control panel (2), a fault indicator light (203) is fixedly connected to the other side of the top of the control panel (2), a cumulative infusion amount display screen (204) is fixedly connected to the control panel (2) below the power indicator light (201), a reset button (205) is fixedly connected to one side of the cumulative infusion amount display screen (204), a liquid crystal display screen (206) is fixedly connected to the middle of the control panel (2), a plurality of function selection buttons (207) are fixedly connected to the bottom of the control panel (2), an infusion indicator light (208) is fixedly connected to the middle of the bottom of the control panel (2), and a fast forward button (209) is fixedly connected to the control panel (2) below the infusion indicator light (208).

4. The intelligent injection pump according to claim 3, characterized in that: A vibration mechanism (7) is fixedly connected to the middle of the accommodating chamber (101), a door hook seat (8) is fixedly connected to one side of the accommodating chamber (101), a door panel (9) is rotatably connected to the other side of the accommodating chamber (101), a plurality of hinges (901) are evenly fixedly connected to one side of the door panel (9), and the other side of the hinge (901) is rotatably connected to one side of the accommodating chamber (101).

5. The intelligent injection pump according to claim 4, characterized in that: The vibration mechanism (7) is composed of a fixed seat (701), a roller (703), a movable wheel (705), a driven gear (706), a driving gear (708) and a stepping motor (707). One side of the fixed seat (701) is fixedly connected to the inner wall of the housing (1). The middle part of the fixed seat (701) is rotatably connected to a rotating shaft (702). The surface of the rotating shaft (702) is fixedly connected to the roller (703). The surface of the roller (703) is evenly provided with a plurality of grooves (704). A rotatable movable wheel (705) is provided inside the groove (704), and the movable wheel (705) slides in the groove (704). One end of the rotating shaft (702) is fixedly connected to a driven gear (706), and one side of the fixed seat (701) is fixedly connected to a stepping motor (707). The output end of the stepping motor (707) is connected to a driving gear (708) through a spline, and the surface of the driving gear (708) is meshed with the surface of the driven gear (706).

6. The intelligent injection pump according to claim 4, characterized in that: The inner wall surface of the door panel (9) is fixedly connected with a sliding rod (10), and two sliding rods (10) are provided. The two sliding rods (10) are symmetrically distributed on the inner wall surface of the door panel (9). The other end of the sliding rod (10) is slidably connected with a sleeve (11), and the other end of the sleeve (11) is fixedly connected with an arc plate (12). The inner diameter of the arc plate (12) is equal to the diameter of the roller (703). A spring (13) is sleeved on the surface of the sleeve (11), and one end of the spring (13) abuts against the inner wall surface of the door panel (9), and the other end of the spring (13) abuts against one side of the arc plate (12).

7. The intelligent injection pump according to claim 6, characterized in that: One side of the door panel (9) is rotatably connected to a door panel (14), the middle of the door panel (14) is rotatably connected to a bayonet (15), both ends of the bayonet (15) are rotatably connected to the middle of the door panel (9), one end of the door panel (14) is fixedly connected to a hook (16), and the hook (16) and the door hook seat (8) are mutually matched and connected.

8. An intelligent injection pump and its working method, characterized in that: The intelligent injection pump according to any one of claims 1 to 7, wherein the working method comprises: S1: First, the fixing clamp (3) is clamped on the column, and the bidirectional screw rod (4) is rotated to rotate, so that the bidirectional screw rod (4) rotates and drives the fixing clamp (3) to slide outward, so that the fixing clamp (3) is opened, so as to facilitate clamping and fixing the syringe, and the control panel (2) is used to control the push plate (6) to push the syringe piston rod, control the syringe to inject, and control the injection speed by the movement rate of the push plate (6); S2: Adjust the infusion speed through the control panel (2). The alarm will announce the adjusted speed once. Press the button to input the total input liquid ml and the total infusion time. The internal calculation system will automatically calculate the infusion speed after the input. Alternatively, you can directly enter the numerical speed to input the syringe. S3: After the infusion parameters are set via the function selection button (207) on the control panel (2), the stepping motor (707) drives the roller (703) to rotate via the driving gear (708) and the driven gear (706) after the sediment detection sensor (103) detects sediment inside the syringe, and controls the roller (703) to rotate so that the movable wheel (705) on the surface of the roller (703) periodically collides with the syringe body, thereby breaking up the sediment inside the syringe; S4: By setting the cumulative infusion volume display screen (204), the cumulative infusion volume is calculated and the numerical value is displayed on the cumulative infusion volume display screen (204), thereby achieving a more intuitive effect of observing the cumulative infusion volume, adjusting the infusion speed through the control panel (2), the alarm voice broadcasts the adjusted speed once, the total input liquid ml and the total infusion time are input by key, and the internal calculation system automatically calculates the infusion speed after the input, or directly inputs the numerical speed; S5: Then close the door panel (9), pass the infusion tube through the accommodating chamber (101), close the door panel (9), and rotate the door panel (14) so that the hook (16) is clamped inside the door hook seat (8), so that the arc plate (12) is against the roller (703), protecting the roller (703) and the movable wheel (705).

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