Infusion device based on infusion pump

Abstract

The invention discloses an infusion device based on an infusion pump in the technical field of medical infusion pumps, and the infusion device comprises a machine body, a clamping piece, a wriggling assembly, a self-rotating rod, a cam, a movable plate, a self-rotating plate, a rotating plate, meshing wheels and a reciprocating assembly, through the reciprocating assembly, the two meshing wheels do reciprocating self-rotating motion at intervals, so that the self-rotating plate performs reciprocating self-rotating at the original position, and the self-rotating rod rotates in a reciprocating mode; through the meshing relation, the rotating plate which rotates in a reciprocating mode enables the inclined movable plate to rotate in a reciprocating mode and move up and down in a reciprocating mode in the direction of the machine body at the same time, so that the rotating rod rotates and enables the multiple cams to move up and down in a reciprocating mode, the cams moving up and down in the reciprocating mode comb infusion tubes, and liquid medicine in the infusion tubes can be conveyed conveniently. The rotating rod which rotates firstly drives the abutting rod located at the top, then the other abutting rods are sequentially driven from top to bottom, the cams distributed from top to bottom are made to rotate one by one, and therefore the cams act on an infusion tube from top to bottom in sequence, and liquid medicine can be conveniently conveyed by the infusion tube.

Description

Technical Field

[0001] The present invention relates to the technical field of medical infusion pump structures, and in particular to an infusion device based on an infusion pump. Background Art

[0002] Infusion pumps are usually mechanical or electronic control devices that control the infusion rate by acting on the infusion catheter. They are often used in situations where the infusion volume and drug dosage need to be strictly controlled, such as when using pressor drugs, antiarrhythmic drugs, intravenous infusion of infants or intravenous anesthesia;

[0003] The existing infusion pump infusion pump system is mainly composed of a microcomputer system, a pump device, a monitoring device, an alarm device, and an input and display device. The pump device is the "heart" of the entire system and the power source for conveying liquids. Medical infusion pumps generally use finger-shaped peristaltic pumps as the power source. The finger-shaped peristaltic pump uses the rotation of rollers to squeeze a certain part of the infusion pump pipeline, generating peristalsis, thereby pushing the liquid forward. The finger-shaped peristaltic pump has the characteristics of small size, light weight, accurate quantitative measurement, and convenient loading and unloading of infusion tubes. It is the most widely used. This pump has a camshaft with multiple cams on it. The movement patterns of these cams differ by a certain angle, and each cam is connected to a finger-shaped slider.

[0004] However, in this method, multiple cams rotate synchronously and squeeze the infusion tube at the same time, and it is not possible to squeeze multiple cams in sequence from top to bottom to improve the smoothness of the downward delivery of the drug solution in the infusion tube.

[0005] To this end, we propose an infusion device based on an infusion pump. Summary of the invention

[0006] The object of the present invention is to provide an infusion device based on an infusion pump to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an infusion device based on an infusion pump, comprising a body, wherein the body is provided with a clamping member for clamping an infusion tube;

[0008] It also includes a pressing member, the machine body is provided with a peristaltic assembly, the peristaltic assembly includes a self-rotating rod that cooperates with the machine body, the self-rotating rod is rotatably connected to a plurality of cams distributed with gaps through the pressing member, and the pressing member enables the plurality of cams to rotate in sequence from top to bottom to act on the infusion tube located between the two self-rotating rods;

[0009] The bottom of the self-rotating rod is fixedly connected to an inclined movable plate, the body is rotatably connected to the self-rotating plate, a matching piece is provided between the self-rotating plate and the movable plate, and the matching piece enables the self-rotating plate to drive the movable plate to rotate and reciprocate up and down;

[0010] A rotating plate and two meshing wheels meshing with each other, wherein the meshing wheels are provided with a reciprocating assembly, and the rotating plate making a circular motion passes through the reciprocating assembly, so that the meshing wheels drive the rotating plate to reciprocate.

[0011] Preferably, the pressure member includes a plurality of rotating cylinders movably sleeved on the rotating rods, the rotating cylinders are fixedly connected to a cam, a pressure rod is fixedly connected to the cam, two adjacent pressure rods are pressed against each other, a plug-in rod which is plug-inly matched with the rotating rod is fixedly connected to the body, and a limiting member which cooperates with the pressure rod is provided at the end of the rotating rod.

[0012] Preferably, the distances between the edges of the plurality of cams and the rotating rod are distributed in a gap pattern.

[0013] Preferably, the limiting member includes a first connecting plate fixedly connected to the top of the rotating rod, the first connecting plate is fixedly connected to a limiting rod that presses against the pressure rod, the bottom of the rotating rod is fixedly connected to a limiting ring, and the body is fixedly connected to a second connecting plate, and the second connecting plate presses against the pressure rod located at the bottom.

[0014] Preferably, the mating parts include mating columns arranged in a matrix and fixedly connected to the edge of the movable plate, a plurality of mating grooves engaging with the mating columns are provided at the edge of the rotating plate, a rotating shaft rotatably connected to the machine body is fixedly connected between the two rotating plates, and a connecting part is provided between the rotating shaft and the meshing wheel.

[0015] Preferably, the connecting member comprises a first rotating wheel connected and fixed to the rotating shaft, a second rotating wheel is fixedly connected to the middle of the meshing wheel, and a conveyor belt is meshed and transmitted between the first rotating wheel and the second rotating wheel.

[0016] Preferably, the diameter of the second rotating wheel is larger than the diameter of the first rotating wheel, and a pressure plate is provided on the conveyor belt.

[0017] Preferably, the reciprocating assembly includes a motor fixedly connected to the machine body, the motor output shaft is fixedly connected to one end of the rotating plate, the other end of the rotating plate is fixedly connected to a sliding rod, and the middle part of the two meshing wheels is fixedly connected to a sliding plate that slidably cooperates with the sliding rod.

[0018] Preferably, the cam, the self-rotating plate, the matching column and the pressure plate act on the infusion tube, and a clamping auxiliary component for clamping the infusion tube is movably inserted on the body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Through the reciprocating assembly, the two meshing wheels make a gap reciprocating rotation activity, so that the rotating plate reciprocates in the original position. Through the meshing relationship, the reciprocating rotating rotating plate makes the inclined movable plate reciprocate while moving up and down along the direction of the machine body, so that the rotating rod rotates and makes multiple cams move up and down. The cams that move up and down comb the infusion tube, which is convenient for the delivery of the liquid medicine in the infusion tube;

[0021] The self-rotating rotating rod first drives the pressure rod at the top, and then drives the other pressure rods in sequence from top to bottom, so that the multiple cams distributed from top to bottom rotate one by one, so that the cams act on the infusion tube in sequence from top to bottom, which is convenient for the infusion tube to transport the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the infusion tube and the peristaltic assembly of the present invention being away from the body;

[0024] Figure 3 It is a schematic diagram of the matching structure of the infusion tube and the peristaltic assembly of the present invention;

[0025] Figure 4 It is a side view schematic diagram of the matching structure of the infusion tube and the peristaltic assembly of the present invention;

[0026] Figure 5 For the present invention Figure 3 A right view schematic diagram of the matching structure of the middle infusion tube and the peristaltic assembly;

[0027] Figure 6 It is a schematic diagram of the split structure of the infusion tube and the peristaltic assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of the split structure of the movable plate and the self-rotating plate of the present invention;

[0029] Figure 8 It is a schematic diagram of the split structure of the self-rotating rod and the self-rotating cylinder of the present invention;

[0030] Fig. 9 It is a schematic diagram of the matching structure of multiple pressure rods of the present invention;

[0031] Fig.10 For the present invention Figure 8 The left side schematic diagram of the structure of the middle reciprocating assembly and the matching parts;

[0032] Fig.11 It is a schematic diagram of the split structure of the matching column and the matching groove of the present invention;

[0033] Fig.12It is a schematic diagram of the split structure of the mounting plate, the rotating shaft and the middle shaft of the meshing wheel of the present invention;

[0034] Fig.13 It is a schematic diagram of the split structure of the second rotating wheel and the meshing wheel of the present invention.

[0035] In the figure: 1. body; 2. clamping member; 3. self-rotating rod; 4. cam; 5. movable plate; 6. self-rotating plate; 7. rotating plate; 8. meshing wheel; 9. self-rotating cylinder; 10. pressure rod; 11. plug-in rod; 12. first connecting plate; 13. limiting rod; 14. limiting ring; 15. second connecting plate; 16. matching column; 17. matching groove; 18. rotating shaft; 19. first rotating wheel; 20. second rotating wheel; 21. conveyor belt; 22. pressure plate; 23. motor; 24. sliding rod; 25. slide plate; 26. clamping auxiliary assembly; 27. mounting plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 13 , the present invention provides a technical solution: an infusion device based on an infusion pump, comprising a body 1, on which a clamping member 2 for clamping an infusion tube is provided;

[0038] The invention is characterized in that: it also includes a pressing member, a peristaltic assembly is provided on the machine body 1, the peristaltic assembly includes a self-rotating rod 3 movably matched with the machine body 1, a plurality of cams 4 with gaps are rotatably connected to the self-rotating rod 3 through the pressing member, and the pressing member makes the plurality of cams 4 rotate in gaps from top to bottom in sequence to act on the infusion tube located between the two self-rotating rods 3;

[0039] The bottom of the self-rotating rod 3 is fixedly connected to an inclined movable plate 5, and the body 1 is rotatably connected to a self-rotating plate 6. A matching piece is provided between the self-rotating plate 6 and the movable plate 5, and the matching piece enables the self-rotating self-rotating plate 6 to drive the movable plate 5 to rotate and reciprocate up and down;

[0040] The rotating plate 7 and two meshing wheels 8 mesh with each other, and the meshing wheels 8 are provided with a reciprocating assembly. The rotating plate 7 doing circular motion passes through the reciprocating assembly, so that the meshing wheels 8 drive the rotating plate 6 to reciprocate.

[0041] In this application, the infusion tube is first clamped by the clamping member 2 and the clamping auxiliary assembly 26;

[0042] During infusion, the reciprocating assembly allows the two meshing wheels 8 to perform a gap reciprocating rotation activity, thereby causing the rotating plate 6 to reciprocate in the original position. Through the meshing relationship, the reciprocating rotating rotating plate 6 causes the inclined movable plate 5 to reciprocate while reciprocating up and down along the direction of the body 1, thereby causing the rotating rod 3 to rotate (the rotating rod 3 rotates clockwise for multiple circles, and then rotates counterclockwise for multiple circles, rotating alternately clockwise and counterclockwise) and causing multiple cams 4 to reciprocate up and down. The reciprocating cams 4 comb the infusion tube to facilitate the delivery of the liquid medicine in the infusion tube;

[0043] The self-rotating rotating rod 3 first drives the pressing rod 10 at the top, and then drives the other pressing rods 10 in order from top to bottom, so that the multiple cams 4 distributed from top to bottom rotate one by one, so that the cams 4 act on the infusion tube in order from top to bottom, which is convenient for the infusion tube to transport the liquid medicine;

[0044] Among them, the body 1 includes a microcomputer system, a monitoring device, an alarm device, and an input and display device, which are all existing technologies and will not be described in detail;

[0045] In the prior art, the infusion pump also includes a pump device, and the peristaltic device in the present application is an improvement on the existing conventional pump device.

[0046] The pressing member includes a plurality of self-rotating cylinders 9 movably sleeved on the self-rotating rod 3, the self-rotating cylinders 9 are connected and fixed to the cam 4, a pressing rod 10 is fixedly connected to the cam 4, two adjacent pressing rods 10 are pressed against each other, a plug-in rod 11 plugged with the self-rotating rod 3 is fixedly connected to the body 1, and a stopper matching with the pressing rod 10 is provided at the end of the self-rotating rod 3;

[0047] The rotating plate 7 rotates in a clockwise direction, and the rotating rod 3 rotates, and through the limiter, first drives the upper pressing rod 10 to rotate (the pressing rods 10 distributed from top to bottom are sequentially arranged as the first pressing rod 10, the second pressing rod 10, the third pressing rod 10, ...), that is, the first pressing rod 10 rotates one circle first, so that the cam 4 corresponding to the position of the first pressing rod 10 rotates synchronously to act on the infusion tube;

[0048] The first pressing rod 10 that has rotated one circle continues to rotate, and the first pressing rod 10 contacts the second pressing rod 10 and drives the second pressing rod 10 to rotate. At this time, the first pressing rod 10 and the second pressing rod 10 rotate synchronously, so that the cams 4 corresponding to the positions of the first pressing rod 10 and the second pressing rod 10 rotate synchronously to act on the infusion tube;

[0049] The first pressing rod 10 continues to rotate, and the second pressing rod 10 contacts the third pressing rod 10, and drives the third pressing rod 10 to rotate. At this time, the first pressing rod 10, the second pressing rod 10 and the third pressing rod 10 rotate, so that the cam 4 corresponding to the position of the first pressing rod 10, the second pressing rod 10 and the third pressing rod 10 rotates synchronously to act on the infusion tube; ......;

[0051] The first pressing rod 10 continues to rotate, so that all the pressing rods 10 rotate synchronously. The pressing rod 10 at the bottom contacts the limiter and cannot continue to rotate. At the same time, the rotating plate 7 starts to rotate in the opposite clockwise direction.

[0052] The distances between the edges of the multiple cams 4 and the rotating rod 3 are distributed in a gap manner, so as to ensure that the effect of each cam 4 is slightly different and the smoothness of the conveying is ensured.

[0053] The limiting member includes a first connecting plate 12 connected and fixed to the top of the self-rotating rod 3, a limiting rod 13 that is pressed and matched with the pressure rod 10 is fixedly connected to the first connecting plate 12, a limiting ring 14 is fixedly connected to the bottom of the self-rotating rod 3, a second connecting plate 15 is fixedly connected to the machine body 1, and the second connecting plate 15 is pressed and matched with the pressure rod 10 located at the bottom. The first connecting plate 12 and the limiting ring 14 ensure that the multiple self-rotating cylinders 9 are always located on the self-rotating rod 3, that is, the self-rotating cylinders 9 will not change their positions in the vertical direction relative to the self-rotating rod 3, and the self-rotating cylinders 9 always rotate at the original positions of the self-rotating rod 3;

[0054] When the rotating plate 6 rotates in the same clockwise direction, the rotating rod 3 rotates, driving the limiting rod 13 to rotate, thereby acting on the pressing rod 10 from top to bottom, so that the multiple rotating cylinders 9 rotate in sequence from top to bottom, and the multiple cams 4 act on the infusion tube in sequence from top to bottom. When the lowermost pressing rod 10 rotates and presses against the second connecting plate 15 that is fixed in a stationary position, all the pressing rods 10, the limiting rod 13 and the second connecting plate 15 are pressed and contacted with each other, and the rotating plate 6 rotates in the opposite direction.

[0055] The matching parts include matching columns 16 arranged in a matrix and connected and fixed to the edge of the movable plate 5, a plurality of matching grooves 17 engaged with the matching columns 16 are provided at the edge of the rotating plate 6, a rotating shaft 18 connected to the body 1 for rotation is fixedly connected between the two rotating plates 6, and a connecting part is provided between the rotating shaft 18 and the meshing wheel 8;

[0056] Under the action of the reciprocating assembly, the rotating shaft 18 rotates at its original position through the connecting piece, thereby causing the rotating plate 6 to rotate at its original position, and the inclined movable plate 5 rotates through the meshing action of the matching groove 17 and the matching column 16, and the inclined movable plate 5 reciprocates up and down at the same time, that is, the rotating rod 3 reciprocates along the plug rod 11, and the rotating rod 3 rotates relative to the plug rod 11, thereby mobilizing all the cams 4 to reciprocate up and down, and the cams 4, under the action of the pressing rod 10, rotate one by one in the order from top to bottom to act on the infusion tube.

[0057] The connecting member includes a first rotating wheel 19 connected and fixed to the rotating shaft 18, a second rotating wheel 20 is fixedly connected to the middle of the meshing wheel 8, and a conveyor belt 21 is meshed and transmitted between the first rotating wheel 19 and the second rotating wheel 20. Through the linkage effect of the first rotating wheel 19, the second rotating wheel 20 and the conveyor belt 21, the meshing wheel 8 rotates to drive the self-rotating plate 6 to rotate, and the self-rotating plate 6 acts on the movable plate 5 to make the self-rotating rod 3 rotate and reciprocate up and down, wherein the mutual contact surface between the first quasi-wheel, the second rotating wheel 20 and the conveyor belt 21 can be set as a toothed surface to further ensure the stability of the transmission;

[0058] Among them, a mounting plate 27 is fixedly connected to the machine body 1 , and the rotating shaft 18 and the central axes of the two meshing wheels 8 (the central axis of the second rotating wheel 20 is the central axis of the upper meshing wheel 8 ) are all rotatably mounted on the mounting plate 27 .

[0059] The diameter of the second rotating wheel 20 is greater than that of the first rotating wheel 19. Through this arrangement, the meshing wheel 8 can rotate a small angle to achieve a large angle rotation of the rotating plate 6, and the meshing wheel 8 can rotate a small half circle to achieve the effect of multiple circles of rotation of the rotating plate 6, thereby facilitating the mutual pressure of multiple pressure rods 10 to achieve the gap rotation of the cam 4 from top to bottom in sequence. A pressure plate 22 is provided on the conveyor belt 21 to further press the infusion tube to ensure the infusion effect.

[0060] The reciprocating assembly includes a motor 23 connected and fixed to the body 1, the output shaft of the motor 23 is connected and fixed to one end of the rotating plate 7, and the other end of the rotating plate 7 is fixedly connected to a sliding rod 24, wherein the diameter of the sliding rod 24 doing circular motion is greater than the spacing between the ends of the two slide plates 25 (the ends close to the center axis position of the meshing wheel 8), so that the sliding rod 24 will fit on the slide plate 25 when it rotates in a circular motion, and slide along the slide plate 25, and the middle parts of the two meshing wheels 8 are fixedly connected with a slide plate 25 that slidably cooperates with the sliding rod 24, and the motor 23 continuously rotates, driving the rotating plate 7 and the sliding rod 24 to make circular rotations in the same clockwise direction, and the sliding rod 24 first acts to contact the upper slide plate 25, so that the upper slide plate 25 rotates, thereby causing the meshing wheel 8 located at the top to rotate in the same clockwise direction, and the other slide plate 25 makes adaptive rotation (the movement of the meshing wheel 8 located at the top drives the meshing wheel 8 located at the bottom to rotate in the opposite direction), thereby causing the rotating plate 6 to rotate in the same clockwise direction;

[0061] When the sliding rod 24 moves away from the upper slide plate 25 and contacts the lower slide plate 25, the sliding rod 24 drives the lower slide plate 25 to rotate, so that the meshing wheel 8 at the lower side rotates in the same clockwise direction, while the upper slide plate 25 rotates in the opposite clockwise direction, so that the rotating plate 6 rotates in the opposite clockwise direction;

[0062] Thereby, the reciprocating rotation motion of the rotating plate 6 is completed.

[0063] The cam 4, the self-rotating plate 6, the matching column 16 and the pressure plate 22 act on the infusion tube. The cam 4 acts on the infusion tube from top to bottom, so that the medicine in the infusion tube is quickly and smoothly transported into the patient's body. At the same time, the self-rotating plate 6, the matching column 16 and the pressure plate 22 strengthen the pressure effect of the gap. The body 1 is movably connected with a clamping auxiliary component 26 for clamping the infusion tube. The clamping auxiliary component 26 has the same structure as the clamping member 2, but the clamping auxiliary component 26 is movably connected to the body 1, and the supporting component and the body 1 are frictionally movable. By movably adjusting the position of the clamping auxiliary component 26, the bottom of the infusion tube clamped by the clamping auxiliary component 26 is synchronously moved and adjusted to avoid the infusion tube with a bent bottom due to the action of the self-rotating plate 6, the matching column 16 and the pressure plate 22. The bending angle is too large to affect the infusion of the infusion tube. That is, by movably adjusting the clamping auxiliary component 26, the infusion tube is smoothly arranged on the body 1, which is convenient for the infusion of the infusion tube.

[0064] Working principle: Before infusion, place the infusion tube between the two self-rotating rods 3, and clamp the infusion tube by the elastic clamping member 2 and the clamping auxiliary component 26, wherein the clamping auxiliary component 26 can be flexibly adjusted to prevent the infusion tube from being bent excessively and affecting the delivery of the infusion tube;

[0065] During infusion, the motor 23 (micro motor 23) is started, driving the rotating plate 7 and the sliding rod 24 to perform circular rotation. The sliding rod 24 first acts to contact the upper slide plate 25, driving the upper meshing wheel 8 to rotate at the original position. The circularly moving sliding rod 24 then separates from the upper slide plate 25 and contacts the lower slide plate 25, thereby causing the lower meshing wheel 8 to rotate at the original position. Through meshing, the upper meshing wheel 8 rotates at the original position in the opposite direction, thereby causing the upper meshing wheel 8 to perform intermittent reciprocating rotation under the action of the motor 23.

[0066] The reciprocating meshing wheel 8, under the action of the conveyor belt 21, causes the rotating shaft 18 and the rotating plate 6 to reciprocate. Since the diameter of the second rotating wheel 20 is larger than the diameter of the first rotating wheel 19, the meshing wheel 8 can rotate a small half circle to achieve the effect of the rotating plate 6 rotating multiple circles, that is, the rotating plate 6 rotates multiple circles clockwise and then counterclockwise, and reciprocates in sequence;

[0067] The reciprocating self-rotating rotating plate 6 is engaged and moved by the matching groove 17 and the matching column 16, so that the inclined movable plate 5 rotates, and the inclined movable plate 5 reciprocates up and down at the same time, and the self-rotating plate 6 always keeps the meshing state with the movable plate 5, that is, the self-rotating rod 3 reciprocates along the plug-in rod 11, and the self-rotating rod 3 rotates relative to the plug-in rod 11;

[0068] When the self-rotating rod 3 reciprocates along the plug-in rod 11, the first connecting rod and the limiting ring 14 enable the plurality of self-rotating cylinders 9 and the cam 4 to move up and down with the self-rotating rod 3, so that the cam 4 moves up and down relative to the infusion tube, scraping the local position of the infusion tube up and down, so as to facilitate the delivery of the liquid medicine in the infusion tube;

[0069] The self-rotating rod 3 rotates clockwise, driving the first connecting plate 12 and the limiting rod 13 to rotate clockwise. The limiting rod 13 first contacts the pressing rod 10 at the top, and causes the self-rotating cylinder 9 and the cam 4 at the position to rotate clockwise, so that the cam 4 at the top rotates clockwise to squeeze the infusion tube.

[0070] Then the uppermost pressing rod 10 rotates clockwise synchronously with the limiting rod 13 in circular motion, and the uppermost pressing rod 10 touches the pressing rod 10 below it, driving the corresponding rotating cylinder 9 and cam 4 at the position of the pressing rod 10 to rotate clockwise, so that the two cams 4 at the uppermost rotate clockwise to squeeze the infusion tube; ....

[0072] The bottom pressure rod 10 rotates clockwise synchronously with the upper pressure rod 10. When the bottom pressure rod 10 contacts the second connecting plate 15, the rotation rod 3 starts to rotate counterclockwise.

[0073] The first connecting plate 12 and the limiting rod 13 rotate counterclockwise, and the limiting rod 13 first contacts the uppermost pressing rod 10, and causes the corresponding rotating cylinder 9 and cam 4 at this position to rotate counterclockwise, so that the uppermost cam 4 rotates counterclockwise to squeeze the infusion tube;

[0074] Then the top pressure rod 10 rotates counterclockwise synchronously with the circular motion limit rod 13, and the top pressure rod 10 touches the pressure rod 10 below it, driving the corresponding rotating cylinder 9 and cam 4 at the position of the pressure rod 10 to rotate counterclockwise, so that the two cams 4 at the top rotate clockwise and counterclockwise to squeeze the infusion tube; ....

[0076] The bottom pressure rod 10 rotates counterclockwise synchronously with the upper pressure rod 10. When the bottom pressure rod 10 contacts the second connecting plate 15, the rotation rod 3 starts to rotate clockwise.

[0077] The cams 4 act on the infusion tube from top to bottom in turn, ensuring smooth and stable delivery of the liquid medicine in the infusion tube.

[0078] It is worth noting that when the limiting rod 13 moves up and down, the horizontal position of the second connecting plate 15 is always located between the top and the bottom of the bottommost pressure rod 10.

[0079] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An infusion device based on an infusion pump, comprising: A machine body (1), wherein the machine body (1) is provided with a clamping member (2) for clamping an infusion tube; The invention is characterized in that: it also includes a pressure piece, the machine body (1) is provided with a peristaltic assembly, the peristaltic assembly includes a self-rotating rod (3) movably matched with the machine body (1), the self-rotating rod (3) is rotatably connected to a plurality of cams (4) distributed with gaps through the pressure piece, and the pressure piece enables the plurality of cams (4) to rotate in sequence from top to bottom with gaps to act on the infusion tube located between the two self-rotating rods (3); The bottom of the self-rotating rod (3) is fixedly connected to a movable plate (5) which is distributed in an inclined manner, and the body (1) is rotatably connected to a self-rotating plate (6). A matching piece is provided between the self-rotating plate (6) and the movable plate (5), and the matching piece enables the self-rotating self-rotating plate (6) to drive the movable plate (5) to rotate and reciprocate up and down; A rotating plate (7) and two meshing wheels (8) meshing with each other, wherein a reciprocating assembly is provided on the meshing wheel (8), and the rotating plate (7) performing circular motion passes through the reciprocating assembly, so that the meshing wheel (8) drives the rotating plate (6) to reciprocate.

2. An infusion device based on an infusion pump according to claim 1, characterized in that: The pressure member comprises a plurality of self-rotating cylinders (9) movably sleeved on the self-rotating rod (3); the self-rotating cylinders (9) are connected and fixed to the cam (4); a pressure rod (10) is fixedly connected to the cam (4); two adjacent pressure rods (10) are pressed against each other; a plug-in rod (11) plug-fittingly engaged with the self-rotating rod (3) is fixedly connected to the body (1); and a limit member cooperating with the pressure rod (10) is provided at the end of the self-rotating rod (3).

3. An infusion device based on an infusion pump according to claim 2, characterized in that: The distances between the edges of the plurality of cams (4) and the self-rotating rod (3) are distributed in a gap-like manner.

4. The infusion device based on an infusion pump according to claim 2, characterized in that: The limiting member comprises a first connecting plate (12) connected and fixed to the top of the self-rotating rod (3); a limiting rod (13) is fixedly connected to the first connecting plate (12) and is pressed and matched with the pressure rod (10); a limiting ring (14) is fixedly connected to the bottom of the self-rotating rod (3); a second connecting plate (15) is fixedly connected to the machine body (1); and the second connecting plate (15) is pressed and matched with the pressure rod (10) located at the bottom.

5. The infusion device based on an infusion pump according to claim 1, characterized in that: The mating parts include mating columns (16) arranged in a matrix and connected and fixed to the edge of the movable plate (5); a plurality of mating grooves (17) meshing with the mating columns (16) are provided at the edge of the self-rotating plate (6); a rotating shaft (18) rotatably connected to the machine body (1) is fixedly connected between the two self-rotating plates (6); and a connecting part is provided between the rotating shaft (18) and the meshing wheel (8).

6. The infusion device based on an infusion pump according to claim 5, characterized in that: The connecting member comprises a first rotating wheel (19) connected and fixed to the rotating shaft (18); a second rotating wheel (20) is fixedly connected to the middle of the meshing wheel (8); and a conveyor belt (21) is meshed and transmitted between the first rotating wheel (19) and the second rotating wheel (20).

7. The infusion device based on an infusion pump according to claim 6, characterized in that: The diameter of the second rotating wheel (20) is greater than the diameter of the first rotating wheel (19), and a pressure plate (22) is provided on the conveyor belt (21).

8. The infusion device based on an infusion pump according to claim 1, characterized in that: The reciprocating assembly comprises a motor (23) connected and fixed to the machine body (1); an output shaft of the motor (23) is connected and fixed to one end of a rotating plate (7); a sliding rod (24) is fixedly connected to the other end of the rotating plate (7); and a sliding plate (25) slidably matched with the sliding rod (24) is fixedly connected to the middle of the two meshing wheels (8).

9. The infusion device based on an infusion pump according to claim 6, characterized in that: The cam (4), the self-rotating plate (6), the matching column (16) and the pressing plate (22) act on the infusion tube, and a clamping auxiliary component (26) for clamping the infusion tube is movably inserted on the body (1).

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