Medical nursing infusion pump

Abstract

The invention provides a medical nursing infusion pump. The medical nursing infusion pump comprises a machine body; the channel pipe is connected to the machine body and can allow the infusion tube to penetrate through; the liquid feeding mechanism comprises a plurality of sets of pressing assemblies arranged at intervals in the axial direction of the channel pipe, each pressing assembly comprises two sliding blocks connected to the channel pipe in a sliding mode, and the two sliding blocks can get close to each other to extrude the infusion pipe or get away from each other to release the infusion pipe; the pressing assemblies sequentially extrude the infusion tube and can drive liquid in the infusion tube to flow in a one-way mode. An included angle is formed between the axial projections of the two liquid feeding mechanisms on the channel pipe; the synchronous assembly can drive the sliding block to slide so as to drive the two liquid feeding mechanisms to extrude the infusion tube in turn. According to the medical nursing infusion pump, after liquid is conveyed, the situation that the infusion tube becomes flat and cannot completely rebound is not likely to occur, and the stability of the infusion precision of the infusion pump can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a medical care infusion pump. Background Art

[0002] In the offshore environment, due to the limited medical resources and the particularity of the environment, the infusion pump, as a medical care device that can accurately control the infusion speed and volume, is particularly important. It can not only improve the efficiency and safety of infusion therapy, but also reduce the workload of medical staff, ensuring that patients receive timely and effective treatment in emergency situations.

[0003] Conventional infusion pumps usually include multiple sliders that can slide and squeeze the infusion tube. Driven by a camshaft, each slider can squeeze the infusion tube in turn. The tube wall is flattened when under pressure, and after being released, it recovers its shape by its own elasticity, achieving the pumping effect of the liquid in the infusion tube. However, the use environment at sea is relatively harsh, the infusion tube may age, and the infusion pump usually squeezes the infusion tube in one direction, which may cause the infusion tube to fail to rebound to a normal state and the infusion accuracy to be unstable. Summary of the invention

[0004] In view of this, the present invention aims to provide a medical care infusion pump to make the infusion accuracy of the infusion pump more stable.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A medical care infusion pump, comprising:

[0007] Body;

[0008] A channel tube, connected to the body, capable of allowing an infusion tube to pass through;

[0009] The liquid delivery mechanism comprises a plurality of groups of pressing components arranged at intervals along the axial direction of the channel tube, the pressing components comprising two sliders slidably connected to the channel tube, the two sliders can approach each other to squeeze the infusion tube, or move away from each other to release the infusion tube; each group of pressing components squeezes the infusion tube in turn, and can drive the liquid in the infusion tube to flow in one direction; the liquid delivery mechanism is provided with two, and there is an angle between the axial projections of the channel tube;

[0010] The synchronization component can drive the slider to slide, so as to drive the two liquid delivery mechanisms to squeeze the infusion tube in turn.

[0011] Furthermore, an elastic member is provided between the slider and the channel tube, and the elastic member always pushes the slider toward the outside of the channel tube;

[0012] The synchronization assembly includes a synchronization tube and a top support block; the synchronization tube is coaxially rotatably arranged outside the channel tube, and the top support block is fixedly connected to the inner wall of the synchronization tube. When the top support block rotates with the synchronization tube, it can squeeze and push the slider to squeeze the infusion tube;

[0013] The supporting blocks are grouped into two, and multiple groups are provided along the axial direction of the synchronous tube corresponding to the sliding blocks. The supporting blocks of each group are symmetrically arranged on both sides of the synchronous tube, and an angle is provided between the axial projections of the supporting blocks of adjacent groups of the synchronous tube, so that each group of pressing components of the same liquid delivery mechanism squeezes the infusion tube in turn.

[0014] Furthermore, a roller is provided at one end of the sliding block facing the synchronization tube, and the roller can roll along the surface of the supporting block to approach or move away from the infusion tube.

[0015] Furthermore, the roller includes a wheel seat and a wheel body, the wheel seat is fixedly connected to the slider, and the wheel body is rotatably connected to the wheel seat; the elastic member is a spring, one end of which abuts against the wheel seat, and the other end abuts against the outer wall of the channel tube;

[0016] One end of the slider located in the channel tube is provided with a squeezing portion in contact with the infusion tube, and the squeezing portion can restrict the slider from escaping from the channel tube.

[0017] Furthermore, the extrusion portion is a cuboid extending axially along the channel tube.

[0018] Further, the channel tube includes a fixed portion and a movable portion;

[0019] The fixed part and the movable part are both groove-shaped plate structures and can be buckled together to form a tubular structure. The fixed part is fixedly connected to the machine body, and the movable part is detachably connected to the fixed part.

[0020] Furthermore, the movable part is inserted into the fixed part along the direction in which it engages with the fixed part.

[0021] Furthermore, a door is hingedly connected to the machine body, and a pressing block is provided on the door. When the door is closed, the pressing block presses the movable part onto the fixed part.

[0022] Furthermore, the medical care infusion pump comprises two sets of limit assemblies arranged on the channel tube, and the two sets of limit assemblies are rotatably connected to the two ends of the synchronization tube respectively;

[0023] The synchronous tube is formed by buckling two semicircular arc plates;

[0024] The limiting assembly includes a first limiting member and a second limiting member. The first limiting member is provided on the fixed part, and the second limiting member is provided on the movable part. When the movable part is buckled with the fixed part, the synchronous tube can be limited to rotate along its own central axis between the first limiting member and the second limiting member.

[0025] Furthermore, the medical care infusion pump includes a driving part and a transmission part arranged on the body;

[0026] The transmission part includes a gear shaft and at least one group of half gear rings; the gear shaft is rotatably connected to the machine body and can be driven to rotate by the driving part, and the half gear rings in the same group are respectively fixed to the two semi-arc plates. When the two semi-arc plates are buckled, the half gear rings in the same group are spliced ​​into a complete outer gear ring and can engage with the gear shaft.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] The medical care infusion pump described in the present invention controls the slider through the synchronization component, and the two liquid delivery mechanisms can squeeze the infusion tube in turn to achieve unidirectional pumping of the liquid in the infusion tube. Because the two liquid delivery mechanisms squeeze the infusion tube in different directions, compared with the existing unidirectional squeezing infusion pump, the infusion tube is less likely to become flat and unable to fully rebound after delivering the same volume of liquid, which helps to improve the stability of the infusion accuracy of the infusion pump.

[0029] Secondly, the elastic member can make the slider stay away from the infusion tube when not affected by the supporting block, that is, it does not squeeze the infusion tube; when the synchronous tube rotates so that the supporting block pushes the slider, the slider can be gradually pushed toward the infusion tube to press the infusion tube, and the two symmetrical supporting blocks act on the slider of the same group of pressing components at the same time, so as to squeeze the infusion tube; when the synchronous tube continues to rotate and the supporting block separates from the slider, the slider can be released to separate from the infusion tube.

[0030] In addition, the roller can be provided to convert the sliding friction between the slider and the top support block into rolling friction, which can make the top support block push the slider more smoothly. The wheel seat can provide a position for the spring to act, so that the spring can push the wheel seat to make the wheel body close to the inner wall of the top support block or the synchronous tube. The extrusion part is set as a rectangular parallelepiped extending along the axial direction of the channel tube, so that when the extrusion part extrudes the infusion tube, the contact area with the infusion tube is larger, and there is a better extrusion effect and higher pumping efficiency.

[0031] Furthermore, the fixed part and the movable part are provided, so that when the infusion tube needs to be installed or removed, the movable part can be removed to facilitate the entry and exit of the infusion tube. The pressing block can firmly press the movable part, ensuring the connection strength between the movable part and the fixed part, so that the movable part is not easy to separate from the fixed part during operation. The plug-in connection method is adopted between the movable part and the fixed part, which can make the connection between the movable part and the fixed part simpler and convenient to install.

[0032] In addition, the limit assembly can not only limit the axial position of the synchronous tube, but also maintain the positional relationship of the two semi-circular plates, so that the two semi-circular plates are not easily deviated from the position when the synchronous tube rotates. The driving unit drives the gear shaft to rotate, and the gear shaft can synchronously drive the synchronous tube equipped with the half gear ring to rotate, so as to realize the control of the liquid delivery mechanism by the synchronous assembly; the gear transmission method is adopted, which has higher transmission efficiency, constant transmission ratio, compact structure and small space occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 This is a schematic diagram of the overall structure of a medical care infusion pump according to an embodiment of the present invention;

[0035] Figure 2 An exploded diagram of the connection relationship between the liquid delivery mechanism, the synchronization component, and the limit component according to an embodiment of the present invention;

[0036] Figure 3 for Figure 2 A partial enlarged view of the middle A part;

[0037] Figure 4 It is a structural schematic diagram of the driving part and the transmission part according to an embodiment of the present invention;

[0038] Figure 5 It is a schematic structural diagram of the liquid delivery mechanism and the top support block according to an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 1. Body;

[0041] 2. Channel pipe;

[0042] 201, fixed part; 202, movable part;

[0043] 3. Liquid delivery mechanism;

[0044] 301, pressing assembly; 3011, slider; 30111, extrusion portion; 3012, elastic member; 3013, roller; 30131, wheel seat; 30132, wheel body;

[0045] 4. Synchronization components;

[0046] 401, synchronous pipe; 402, top support block;

[0047] 5. Door;

[0048] 6. Press the block;

[0049] 7. Limiting components;

[0050] 701, first limiting member; 702, second limiting member;

[0051] 8. Driving unit;

[0052] 9. Transmission unit;

[0053] 901, gear shaft; 902, half gear ring;

[0054] 10. Infusion tube. DETAILED DESCRIPTION

[0055] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0056] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0057] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0058] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0059] This embodiment relates to a medical care infusion pump to make the infusion accuracy of the infusion pump more stable.

[0060] In terms of overall structure, a medical care infusion pump in this embodiment includes a body, a channel tube, a liquid delivery mechanism and a synchronization component. The channel tube is connected to the body and can allow the infusion tube to pass through. The liquid delivery mechanism includes multiple groups of pressing components arranged at intervals along the axial direction of the channel tube, and the pressing components include two sliders slidably connected to the channel tube. The two sliders can approach each other to squeeze the infusion tube, or move away from each other to release the infusion tube; each group of pressing components squeezes the infusion tube in turn, and can drive the liquid in the infusion tube to flow unidirectionally; there are two liquid delivery mechanisms, and there is an angle between the axial projections of the two liquid delivery mechanisms in the channel tube. The synchronization component can drive the slider to slide to drive the two liquid delivery mechanisms to squeeze the infusion tube in turn.

[0061] As configured above, the medical care infusion pump of this embodiment controls the slider through the synchronization component, and the two liquid delivery mechanisms can squeeze the infusion tube in turn to achieve unidirectional pumping of the liquid in the infusion tube. Because the two liquid delivery mechanisms squeeze the infusion tube in different directions, compared with the existing unidirectional squeezing infusion pump, the infusion tube is less likely to become flat and unable to fully rebound after delivering the same volume of liquid, which helps to improve the stability of the infusion accuracy of the infusion pump.

[0062] Based on the above overall introduction, refer to Figures 1 to 5 As shown, specifically, the medical care infusion pump of this embodiment is portable, and a handle is hinged on the top to facilitate the overall movement and transportation. An operation panel is provided on the upper part of the body 1, and a concave chamber is provided on the lower part to accommodate other structures. Secondly, a door 5 is hinged on the body 1, and the door 5 can be opened and closed to open or close the chamber of the body 1. Preferably, the two liquid delivery mechanisms 3 of this embodiment are vertically arranged in the axial projection of the channel tube 2, that is, when the sliders 3011 of the two liquid delivery mechanisms 3 squeeze the infusion tube 10, the squeezing directions are perpendicular to each other, which can better prevent the infusion tube 10 from becoming flat and being unable to fully rebound. Correspondingly, the channel tube 2 of this embodiment is a regular octagonal tube, so as to facilitate the arrangement of two groups of liquid delivery mechanisms 3.

[0063] Among them, for the specific structure of the liquid delivery mechanism 3, an elastic member 3012 is provided between the slider 3011 and the channel tube 2 in this embodiment, and the elastic member 3012 always pushes the slider 3011 to the outside of the channel tube 2. The synchronization component 4 includes a synchronization tube 401 and a support block 402; the synchronization tube 401 is coaxially rotatably arranged outside the channel tube 2, and the support block 402 is fixedly connected to the inner wall of the synchronization tube 401. When the support block 402 rotates with the synchronization tube 401, it can squeeze and push the slider 3011 to squeeze the infusion tube 10. Two support blocks 402 form a group, and multiple groups are provided along the axial direction of the synchronization tube 401 corresponding to the sliders 3011. Each group of support blocks 402 is symmetrically arranged on both sides of the synchronization tube 401, and an angle is set between the projections of the axial direction of the synchronization tube 401 of the support blocks 402 of adjacent groups, so that each group of pressing components 301 of the same liquid delivery mechanism 3 squeezes the infusion tube 10 in turn.

[0064] By adopting the above structure, the elastic member 3012 can make the slider 3011 in a state away from the infusion tube 10 when not acted by the supporting block 402, that is, in a state of not squeezing the infusion tube 10. When the synchronous tube 401 rotates so that the supporting block 402 pushes the slider 3011, the slider 3011 can be gradually pushed toward the infusion tube 10 to press the infusion tube 10. The two symmetrical supporting blocks 402 simultaneously act on the slider 3011 of the same pressing assembly 301 to squeeze the infusion tube 10. When the synchronous tube 401 continues to rotate and the supporting block 402 is separated from the slider 3011, the slider 3011 can be released to separate from the infusion tube 10.

[0065] Specifically, a roller 3013 is provided at one end of the slider 3011 facing the synchronous tube 401, and the roller 3013 can roll along the surface of the supporting block 402 to approach or move away from the infusion tube 10. The roller 3013 can be provided to convert the sliding friction between the slider 3011 and the supporting block 402 into rolling friction, so that the supporting block 402 can push the slider 3011 more smoothly. Preferably, the supporting block 402 is crescent-shaped on the radial cross section of the channel tube 2, and the roller 3013 can be gradually pressed down and released during the contact process with the roller 3013, so that the liquid pumping in the infusion tube 10 is smoother and more uniform. The circumferential angle occupied by the supporting block 402 on the inner wall of the synchronous tube 401 is less than ninety degrees, so that only one of the two groups of pressing components 301 on the same radial plane on the infusion tube 10 is affected by the supporting block 402, and the motion interference between adjacent sliders 3011 can be avoided.

[0066] Further, the roller 3013 includes a wheel seat 30131 and a wheel body 30132, the wheel seat 30131 is fixedly connected to the slider 3011, and the wheel body 30132 is rotatably connected to the wheel seat 30131. The elastic member 3012 is a spring, one end of which abuts against the wheel seat 30131, and the other end abuts against the outer wall of the channel tube 2. The end of the slider 3011 located in the channel tube 2 is provided with a squeezing portion 30111 in contact with the infusion tube 10, and the squeezing portion 30111 can limit the slider 3011 from slipping out of the channel tube 2. The wheel seat 30131 is provided to provide an action position for the spring, so that the spring can push the wheel seat 30131 to make the wheel body 30132 close to the inner wall of the supporting block 402 or the synchronous tube 401. As a preferred embodiment, the spring is sleeved on the slider 3011 in this embodiment. The size of the extrusion portion 30111 is larger than the size of the upper middle portion of the slider 3011 , so that one end of the extrusion portion 30111 of the slider 3011 will not fall out of the channel tube 2 .

[0067] Preferably, the squeezing portion 30111 is a rectangular parallelepiped extending along the axial direction of the channel tube 2. The squeezing portion 30111 is set as a rectangular parallelepiped extending along the axial direction of the channel tube 2, so that the squeezing portion 30111 has a larger contact area with the infusion tube 10 when squeezing the infusion tube 10, which has a better squeezing effect and a higher pumping efficiency. The squeezing portion 30111 is provided with rounded corners at both ends of the axial direction of the channel tube 2 at one end of the infusion tube 10, so that the squeezing portion 30111 is not easy to damage the infusion tube 10.

[0068] Secondly, as for the structure of the channel tube 2, the channel tube 2 of this embodiment includes a fixed portion 201 and a movable portion 202. The fixed portion 201 and the movable portion 202 are both grooved plate structures, and can be interlocked to form a tubular structure. The fixed portion 201 is fixedly connected to the body 1, and the movable portion 202 is detachably connected to the fixed portion 201. The fixed portion 201 and the movable portion 202 are provided, and when the infusion tube 10 needs to be installed or removed, the movable portion 202 can be removed to facilitate the entry and exit of the infusion tube 10. Preferably, the opening of the fixed portion 201 faces the direction of the machine door 5, which can facilitate the operator to load and unload the movable portion 202.

[0069] Specifically, the movable part 202 is plugged into the fixed part 201 along the direction in which it is buckled with the fixed part 201. For the four sliders 3011 in the same circumferential direction, three sliders 3011 are arranged on the fixed part 201, and one slider 3011 is arranged on the movable part 202. The sliding direction of the slider 3011 on the movable part 202 is the same as the opposite direction of the movable part 202 plugging into the fixed part 201. The plug-in connection between the movable part 202 and the fixed part 201 can make the connection between the movable part 202 and the fixed part 201 simpler and more convenient to install.

[0070] Furthermore, in order to ensure the connection strength between the movable part 202 and the fixed part 201 during the operation of the medical care infusion pump, a pressing block 6 is provided on the machine door 5 in this embodiment. When the machine door 5 is closed, the pressing block 6 presses the movable part 202 against the fixed part 201. The pressing block 6 can firmly press the movable part 202, ensure the connection strength between the movable part 202 and the fixed part 201, and make it difficult for the movable part 202 to separate from the fixed part 201 during operation.

[0071] In addition, the medical care infusion pump includes two groups of limiter assemblies 7 arranged on the channel tube 2, and the two groups of limiter assemblies 7 are respectively rotated to connect the two ends of the synchronous tube 401. The synchronous tube 401 is formed by buckling two semi-circular arc plates. The limiter assembly 7 includes a first limiter 701 and a second limiter 702, the fixed part 201 is provided with a first limiter 701, and the movable part 202 is provided with a second limiter 702. When the movable part 202 is buckled with the fixed part 201, the synchronous tube 401 can be limited to rotate along its own central axis between the first limiter 701 and the second limiter 702. The limiter assembly 7 is disc-shaped, and an axially extending edge is provided on one side of the synchronous tube 401. The edge is cylindrical, which can maintain the positional relationship of the two semi-circular arc plates, and the two semi-circular arc plates are not easy to deviate from the position when the synchronous tube 401 rotates. Of course, the limiter assembly 7 can also be other shapes, as long as it can ensure that the buckling state of the two semi-circular arc plates when the synchronous tube 401 rotates.

[0072] In addition, regarding the specific driven mode of the synchronization component 4, the medical care infusion pump of this embodiment includes a driving part 8 and a transmission part 9 arranged on the body 1. The transmission part 9 includes a gear shaft 901 and at least one group of half gear rings 902. The gear shaft 901 is rotatably connected to the body 1 and can be driven to rotate by the driving part 8. The half gear rings 902 in the same group are respectively fixed to the two semi-circular arc plates. When the two semi-circular arc plates are buckled, the half gear rings 902 in the same group are spliced ​​into a complete outer gear ring and can engage with the gear shaft 901. Preferably, the driving part 8 of this embodiment is a motor, the motor is mounted on the bottom wall of the chamber of the body 1, and the output shaft is keyed to the gear shaft 901.

[0073] By the above arrangement, the driving unit 8 drives the gear shaft 901 to rotate, and the gear shaft 901 can synchronously drive the synchronous tube 401 equipped with the half gear ring 902 to rotate, so as to realize the control of the liquid delivery mechanism 3 by the synchronous component 4. The gear transmission method has a high transmission efficiency, a constant transmission ratio, and a compact structure with a small space occupation. Specifically, the half gear ring 902 of this embodiment is provided with two groups, which are respectively arranged at the axial ends of the synchronous tube 401, and the corresponding gear shaft 901 is also provided with two gears respectively meshing with the two groups of half gear rings 902, which can drive the synchronous tube 401 to rotate more stably.

[0074] It is understandable that the transmission part 9 may also be a transmission structure of a synchronous belt and a synchronous pulley, or a transmission structure of a belt and a pulley, as long as the synchronous tube 401 can be driven to rotate.

[0075] The medical care infusion pump of this embodiment controls the slider 3011 through the synchronization component 4, and the two liquid delivery mechanisms 3 can squeeze the infusion tube 10 in turn to achieve unidirectional pumping of the liquid in the infusion tube 10. Because the two liquid delivery mechanisms 3 squeeze the infusion tube 10 in different directions, compared with the existing unidirectional squeezing infusion pump, it is less likely that the infusion tube 10 will become flat and unable to rebound completely after delivering the same volume of liquid, which helps to improve the stability of the infusion pump's infusion accuracy. At the same time, because of the detachable structure of the channel tube 2 and the synchronization tube 401, the installation of the infusion tube 10 is also relatively convenient.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A medical care infusion pump, characterized in that: include: Body (1); A channel tube (2) connected to the body (1) and capable of allowing an infusion tube to pass through; The liquid delivery mechanism (3) comprises a plurality of groups of pressing assemblies (301) arranged at intervals along the axial direction of the channel tube (2), the pressing assemblies (301) comprising two sliders (3011) slidably connected to the channel tube (2), the two sliders (3011) being able to move closer to each other to squeeze the liquid infusion tube, or move away from each other to release the liquid infusion tube; each group of pressing assemblies (301) sequentially squeezes the liquid infusion tube, and is able to drive the liquid in the liquid infusion tube to flow in one direction; the liquid delivery mechanism (3) is provided with two, and an angle exists between the axial projections of the two liquid delivery mechanisms (3) of the channel tube (2); The synchronization component (4) can drive the slider (3011) to slide, so as to drive the two liquid delivery mechanisms (3) to squeeze the infusion tube in turn.

2. The medical care infusion pump according to claim 1, characterized in that: An elastic member (3012) is provided between the slider (3011) and the channel tube (2), and the elastic member (3012) always pushes the slider (3011) toward the outside of the channel tube (2); The synchronization component (4) comprises a synchronization tube (401) and a supporting block (402); the synchronization tube (401) is coaxially rotatably arranged outside the channel tube (2), and the supporting block (402) is fixedly connected to the inner wall of the synchronization tube (401); when the supporting block (402) rotates with the synchronization tube (401), it can squeeze and push the slider (3011) to squeeze the infusion tube; The supporting blocks (402) are arranged in groups of two, and a plurality of groups are arranged along the axial direction of the synchronous tube (401) corresponding to the sliding block (3011). The supporting blocks (402) of each group are symmetrically arranged on both sides of the synchronous tube (401), and an angle is provided between the axial projections of the supporting blocks (402) of adjacent groups on the synchronous tube (401), so that the pressing components (301) of the same liquid delivery mechanism (3) squeeze the infusion tube in sequence.

3. The medical care infusion pump according to claim 2, characterized in that: The sliding block (3011) is provided with a roller (3013) at one end facing the synchronization tube (401), and the roller (3013) can roll along the surface of the supporting block (402) to approach or move away from the infusion tube.

4. The medical care infusion pump according to claim 3, characterized in that: The roller (3013) comprises a wheel seat (30131) and a wheel body (30132); the wheel seat (30131) is fixedly connected to the slider (3011), and the wheel body (30132) is rotatably connected to the wheel seat (30131); the elastic member (3012) is a spring, one end of which abuts against the wheel seat (30131) and the other end abuts against the outer wall of the channel tube (2); One end of the slider (3011) located inside the channel tube (2) is provided with a squeezing portion (30111) in contact with the infusion tube, and the squeezing portion (30111) can restrict the slider (3011) from falling out of the channel tube (2).

5. The medical care infusion pump according to claim 4, characterized in that: The extrusion portion (30111) is a rectangular parallelepiped extending axially along the channel tube (2).

6. The medical care infusion pump according to claim 2, characterized in that: The channel tube (2) comprises a fixed portion (201) and a movable portion (202); The fixed part (201) and the movable part (202) are both grooved plate structures and can be interlocked to form a tubular structure; the fixed part (201) is fixedly connected to the machine body (1); and the movable part (202) is detachably connected to the fixed part (201).

7. The medical care infusion pump according to claim 6, characterized in that: The movable portion (202) is inserted into the fixed portion (201) along a direction in which it engages with the fixed portion (201).

8. The medical care infusion pump according to claim 7, characterized in that: The machine body (1) is hingedly provided with a door (5), and the door (5) is provided with a pressing block (6). When the door (5) is closed, the pressing block (6) presses the movable part (202) onto the fixed part (201).

9. The medical care infusion pump according to claim 6, characterized in that: It comprises two groups of limit assemblies (7) arranged on the channel tube (2), and the two groups of limit assemblies (7) are rotatably connected to the two ends of the synchronization tube (401) respectively; The synchronous tube (401) is formed by buckling two semicircular arc plates; The limiting assembly (7) comprises a first limiting member (701) and a second limiting member (702); the first limiting member (701) is provided on the fixed portion (201), and the second limiting member (702) is provided on the movable portion (202); when the movable portion (202) is engaged with the fixed portion (201), the synchronous tube (401) can be limited to rotate along its own central axis between the first limiting member (701) and the second limiting member (702).

10. The medical care infusion pump according to claim 9, characterized in that: It comprises a driving part (8) and a transmission part (9) which are arranged on the machine body (1); The transmission part (9) comprises a gear shaft (901) and at least one group of half gear rings (902); the gear shaft (901) is rotatably connected to the machine body (1) and can be driven to rotate by the driving part (8); the half gear rings (902) in the same group are respectively fixed to the two semi-circular arc plates; when the two semi-circular arc plates are buckled, the half gear rings (902) in the same group are spliced ​​into a complete outer gear ring and can mesh with the gear shaft (901).

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