Automatic winding method for medical infusion tubing and apparatus for implementing the method

Abstract

This invention relates to the field of medical device manufacturing technology, and particularly to an automatic winding method for medical infusion tubing, comprising the following steps: Step 1: Straightening and loading the infusion tubing, wherein the infusion tubing includes a drip chamber assembly, a regulator assembly, and an injection assembly connected sequentially via a medical catheter, wherein the injection assembly includes a latex tubing and an injection needle tube; Step 2: Before winding the infusion tubing, rotating either component on either side of the regulator assembly 180 degrees, so that the component is positioned opposite to the regulator assembly and faces a direction opposite to the infusion tubing's insertion direction; Step 3: During the winding process, the relative position of the regulator assembly and the component remains unchanged; Step 4: After winding, the drip chamber assembly and injection assembly on both sides of the regulator assembly face the same direction, but opposite to the infusion tubing's insertion direction. This method prevents the wound infusion tubing from unraveling during bag loading, and prevents the drip chamber assembly, latex tubing assembly, and injection assembly from getting stuck in the bag during bag loading.

Description

Technical Field

[0001] This invention belongs to the field of medical device manufacturing technology, and specifically relates to an automatic winding method for medical infusion tubes and an apparatus for implementing the method. Background Art

[0002] Infusion sets are common medical consumables mainly used for intravenous infusion. They are sterile conduits that connect a vein to the intravenous fluid. They typically consist of an intravenous needle, drip chamber, protective cap, tubing, filter, and flow regulator. When assembling disposable infusion sets, the tubing of a fixed length needs to be wound into a coil for easy packaging and future use.

[0003] A search revealed numerous existing technologies for winding infusion tubing. For instance, Chinese patent document CN210503526U discloses a tubing winding mechanism for an infusion set packaging machine. This mechanism includes a worktable, a lifting device, a rotating device, and a tubing pressing device. The lifting device is connected to and drives the rotating device to move up and down. The winding rod and positioning rod on the rotating device form a positioning winding interval, and the infusion set is wound by a rotary servo motor. The pressing plate on the tubing pressing device contacts the tubing during operation and is repeatedly struck by a return spring. The advantage of this invention is that it improves tubing winding efficiency. For example, Chinese patent document CN210618631U discloses an infusion set packaging machine, which includes a frame, a tubing gripping device, a tubing winding device, a tubing pushing device, an automatic bag feeding device, a shifting and supporting bag device, and a sealing device. The tubing gripping device grips the positioning end of the infusion set and moves it to a position on the tubing winding device; the tubing winding device is used to wind the infusion set; the tubing pushing device is used to clamp the infusion set and push it together with the packaging bag onto the shifting and supporting bag device; the automatic bag feeding device has a suction cup assembly to suck the packaging bag out of the storage box and a pushing assembly to push the packaging bag onto the bagging path; the shifting and supporting bag device rotates the packaging bag through a rotating shaft and a rotary cylinder, and opens the opening of the packaging bag through a mechanical supporting bag gripper; the shifting and supporting bag device has a moving device to move the packaging bag onto the sealing device and an air extraction device for vacuum treatment of the packaging bag; the sealing device seals the opening of the packaging bag. The advantage is that this utility model can improve packaging efficiency. For example, Chinese Patent No. CN103523525B provides a method for loading medical catheters, belonging to the field of medical device technology. It solves the problems of low assembly efficiency and high scrap rate in existing infusion sets. This method for loading medical catheters includes the following steps: a) suction; b) discharge; c) coiling; d) alignment; e) length setting of the front and rear ends of the medical catheter; f) discharge. This method for loading medical catheters has advantages such as high assembly efficiency, high product cleanliness, and high yield.

[0004] Existing winding mechanisms and methods can wind infusion tubing, but they are difficult to shape after winding. The relative positions of the components are deviated after winding, and the tubing is easy to unravel. When the wound medical infusion tubing is bagged, if the relative positions of the components are not preset before winding, the drip chamber component or injection component may be in the same direction as the feeding direction, which can easily cause the bag opening to get stuck, thus affecting packaging efficiency. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a novel method for winding medical infusion tubing. This method ensures that the free ends of the drip chamber and injection assembly on both sides of the regulator assembly face the same direction, opposite to the feeding direction. Therefore, when the wound medical infusion tubing is bagged, it enters the bag downwards in the second arc. At this point, the drip chamber and injection assembly are downstream of the bag-entry direction. The feeding direction of the medical infusion tubing is the same as the bag-entry direction of the wound medical infusion tubing. The wound medical infusion tubing produced by this method has high assembly efficiency, smooth operation, and no bag jamming. The entire assembly process can be completed without manual intervention.

[0006] An automatic winding method for medical infusion tubing, comprising the following steps: characterized in that:

[0007] Step 1: Straighten the infusion tubing and feed it, wherein the infusion tubing includes a drip chamber assembly, a regulator assembly and an injection assembly connected in sequence through a medical catheter, wherein the injection assembly includes a latex tubing and an injection needle tube;

[0008] Step 2: Before circling the infusion tubing, rotate the latex tubing of the drip chamber assembly or injection assembly on one side of the regulator assembly by 180 degrees. At this time, the assembly is positioned opposite to the regulator assembly and facing the opposite direction to the infusion tubing's insertion into the bag.

[0009] Step 3: During the circling process, the relative position of the regulator assembly and this component remains unchanged;

[0010] Step 4: After completing the circling, the drip assemblies and latex tubing on both sides of the regulator assembly should face the same direction, but opposite to the direction in which the infusion tubing enters the bag.

[0011] The infusion tubing of this invention is less likely to unravel during the bagging process, and the drip chamber assembly and latex tubing are less likely to get stuck in the bag during this process. In this application, the bagging direction refers to the direction in which the coiled medical infusion tubing is placed into the packaging bag.

[0012] Preferably, in step two, when the dripping or injection assembly on one side of the regulator assembly is rotated 180 degrees, the position of the regulator assembly on the medical catheter is adjusted, and the medical catheter between the regulator assembly and the other assembly forms a first arc in the downstream direction of the feeding direction. That is, a fixed distance is determined between the regulator assembly and the dripping or injection assembly on one side. In step four, after the circling is completed, the medical catheter between the regulator assembly and the other assembly forms a second arc in the upstream direction of the feeding direction.

[0013] An automatic winding device for implementing an automatic winding method for medical infusion tubes includes an infusion tube retrieval mechanism, a winding completion mechanism, and a part retrieval mechanism; the infusion tube retrieval mechanism and the part retrieval mechanism are both located above the winding completion mechanism and slide in the horizontal direction; the infusion tube retrieval mechanism includes a tube retrieval lifting cylinder; a first working platform is drivenly connected to the output end of the tube retrieval lifting cylinder; several sets of turning components are evenly spaced at the bottom of the first working platform;

[0014] The winding completion mechanism includes a second working platform; several sets of winding rotation components are rotatably connected at equal intervals on the top of the second working platform; a translation plate is provided at the top edge of the second working platform; several sets of winding tension cylinders, the same number as the winding rotation components, are provided at equal intervals at the bottom of the translation plate; the output end of each set of winding tension cylinders extends to the top of the translation plate and is connected to two sets of tension rods.

[0015] The turning assembly includes a first rotating block; the first rotating block is rotatably connected to the bottom of the first working platform; a dripping bucket clamping cylinder is provided at the end of the first rotating block away from the rotating shaft; a dripping bucket clamp is drivenly connected to the output end of the dripping bucket clamping cylinder; an adjuster clamping cylinder is provided on one side of the dripping bucket clamping cylinder; an adjuster clamp is drivenly connected to the output end of the adjuster clamping cylinder.

[0016] Furthermore, the infusion tube retrieving mechanism also includes a first mounting plate; the first mounting plate is located above the first working platform; a set of first traveling sliders are respectively provided on the top two sides of the first mounting plate; a turning and rotating cylinder is provided on one side wall of the first working platform; the output end of the turning and rotating cylinder is connected to several sets of turning components.

[0017] Furthermore, the turning assembly also includes a tube-supporting cylinder; the tube-supporting cylinder is located on the side of the dripping bucket clamping cylinder away from the regulator clamping cylinder; a tube-supporting rod is drivenly connected to the output end of the tube-supporting cylinder.

[0018] Furthermore, a tube clamping cylinder is provided on the side of the regulator clamping cylinder away from the drip chamber clamping cylinder; an infusion tube clamp is driven to the output end of the tube clamping cylinder; an infusion tube alignment cylinder is provided on the side of the tube clamping cylinder away from the regulator clamping cylinder; an infusion tube alignment plate is driven to the output end of the infusion tube alignment cylinder.

[0019] Furthermore, the second working platform is equipped with a servo motor for rotating in a circular motion; the output end of the servo motor is connected to several sets of rotating components for transmission; a translating cylinder for rotating in a circular motion is provided on one side of the second working platform; the translating cylinder for rotating in a circular motion is connected to a translation plate for transmission.

[0020] Furthermore, the rotating assembly includes a rotating gripper cylinder; the top of the rotating gripper cylinder is provided with a rotating platform; a dripping bucket fixing plate and an adjuster fixing plate are respectively provided on the two sides of the top of the rotating platform; a number of rotating support rods are provided on the top edge of the rotating platform; the number of rotating support rods are connected to the output end of the rotating gripper cylinder.

[0021] Furthermore, the part-retrieving mechanism includes a second mounting plate; a part-retrieving lifting cylinder is provided at the top center of the second mounting plate; a set of second traveling sliders are respectively provided at the top two side edges of the second mounting plate; a third working platform is provided below the second mounting plate; the output end of the part-retrieving lifting cylinder is connected to the third working platform in a transmission manner.

[0022] Furthermore, the bottom of the third working platform is rotatably connected with several sets of part-picking rotating assemblies at equal intervals; a part-picking rotating cylinder is provided on one side wall of the third working platform; the output end of the part-picking rotating cylinder is drivenly connected to several sets of part-picking rotating assemblies, and the part-picking rotating assembly includes a second rotating block; the second rotating block is rotatably connected to the bottom of the third working platform and is drivenly connected to the output end of the part-picking rotating cylinder; a front part-picking clamp cylinder and a rear part-picking clamp cylinder are respectively provided on the bottom two sides of the second rotating block; a front part-picking clamp and a rear part-picking clamp are respectively provided on the output ends of the front part-picking clamp cylinder and the rear part-picking clamp cylinder.

[0023] The beneficial effects of the present invention are:

[0024] The purpose of the method employed in this invention is to ensure that the infusion tubing maintains a fixed distance between the regulator assembly and the drip chamber assembly, or between the regulator assembly and the injection assembly, before and after the tubing is wound. After the wound, the latex tubing in the drip chamber assembly and the injection assembly faces the same direction, thereby improving the quality of the packaging after the wound.

[0025] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This diagram illustrates how the medical infusion tubing is straightened and fed.

[0028] Figure 2 This diagram illustrates the rotation of the dripping container assembly by 180 degrees;

[0029] Figure 3 This diagram illustrates the latex tube after it has been wound into loops according to the present invention.

[0030] Figure 4 The diagram shows a structural schematic of the medical infusion tubing of the present invention after it has been wound into a coil. At this time, the drip chamber assembly and the regulator assembly are positioned opposite each other and have the same orientation as the latex tubing.

[0031] Figure 5 It shows Figure 4 Another perspective view;

[0032] Figure 6 This diagram illustrates the present invention by rotating the latex tube 180 degrees.

[0033] Figure 7 This diagram shows a schematic of the dripping bucket assembly after it has been wound in a loop according to the present invention;

[0034] Figure 8 The diagram shows a structural schematic of the medical infusion tubing of the present invention after it has been coiled and formed. At this time, the latex tubing and the regulator assembly are positioned opposite each other and face the same direction as the drip chamber assembly.

[0035] Figure 9 A schematic diagram of the structure of the automatic tube winding device according to an embodiment of the present invention is shown;

[0036] Figure 10 A schematic diagram of the infusion tube receiving mechanism according to an embodiment of the present invention is shown during operation.

[0037] Figure 11 An embodiment of the present invention is shown. Figure 10 Enlarged view of point A in the middle;

[0038] Figure 12 This is a rear view schematic diagram of the infusion tube taking mechanism in operation according to an embodiment of the present invention;

[0039] Figure 13 An embodiment of the present invention is shown. Figure 12 Enlarged view of point B in the middle;

[0040] Figure 14 This diagram shows a schematic representation of the working structure of the winding completion mechanism according to an embodiment of the present invention.

[0041] Figure 15 An embodiment of the present invention is shown. Figure 14 Enlarged view of point C in the middle;

[0042] Figure 16 A schematic diagram of the working structure of the part-retrieving mechanism according to an embodiment of the present invention is shown;

[0043] Figure 17 An embodiment of the present invention is shown. Figure 16 Enlarged view of point D in the middle;

[0044] In the diagram: 100, Infusion tube retrieval mechanism; 200, circling completion mechanism; 300, retrieval mechanism; 110, First mounting plate; 120, tube retrieval lifting cylinder; 130, First traveling slider; 140, First working platform; 150, turning and rotating cylinder; 160, turning assembly; 1601, tube support cylinder; 1602, tube support rod; 1603, drip chamber clamping cylinder; 1604, drip chamber clamp; 1605, regulator clamping cylinder; 1606, regulator clamp; 1607, tube clamping cylinder; 1608, infusion tube clamp; 1609, infusion tube alignment cylinder; 1610, infusion tube alignment plate; 1611, First rotating block; 210, Second working platform; 220, circling servo motor; 230, circling rotation assembly; 240, translation plate; 250, circling tensioning cylinder. 260. Tensioning rod; 270. Circular translation cylinder; 2301. Circular gripper cylinder; 2302. Circular platform; 2303. Dropper fixing plate; 2304. Circular support rod; 2305. Adjuster fixing plate; 310. Second mounting plate; 320. Part lifting and lowering cylinder; 330. Second traveling slider; 340. Third working platform; 350. Part lifting rotation cylinder; 360. Part lifting rotation. Components; 3601, Second rotating block; 3602, Front clamping cylinder for picking up parts; 3603, Front clamping fixture for picking up parts; 3604, Rear clamping cylinder for picking up parts; 3605, Rear clamping fixture for picking up parts; 400, Medical infusion tubing; 410, Drip chamber assembly; 420, Regulator assembly; 430, Latex tubing; 440, Injection needle tube; 450, Medical catheter; 470, First arc segment; 480, Second arc segment. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] This invention provides an automatic winding method for medical infusion tubing, comprising the following steps: Step 1: Straightening and loading the medical infusion tubing 400, wherein the medical infusion tubing 400 includes a drip chamber assembly 410, a regulator assembly 420, a latex tube 430, and an injection needle tube 440 connected sequentially via a medical conduit 450; Step 2: Before winding the medical infusion tubing 400, rotating the drip chamber assembly 410 on one side of the regulator assembly 420 by 180 degrees, at which point the drip chamber assembly 410 and the regulator assembly 420 are positioned opposite each other and facing in the opposite direction to the inlet direction of the medical infusion tubing 400; Step 3: Winding the latex tube 430, during which the relative positions of the regulator assembly 420 and the drip chamber assembly 410 remain unchanged; Step 4: After winding is completed, the drip chamber assemblies 410 and the latex tube 430 on both sides of the regulator assembly 420 face in the opposite direction to the inlet direction of the medical infusion tubing 400. To prevent the coiled medical infusion tubing 400 from unraveling during bagging, the second arc formed during the coiling of the medical catheter 450 guides the coiled medical infusion tubing 400 into the bag. Since the drip chamber assembly 410, latex tubing 430, and injection needle tube 440 are located downstream of the bagging direction, they are less likely to get stuck in the bag. Specifically, in step two, before the medical infusion tubing 400 is coiled, the injection assembly (composed of latex tubing 430 and injection needle tube 440) on one side of the regulator assembly 420 is rotated 180 degrees and positioned opposite the regulator assembly 420, facing the opposite direction to the bagging direction of the medical infusion tubing 400.

[0047] Preferably, in step two, when the dripping assembly 410 or injection needle tube 440 on one side of the regulator assembly 420 is rotated 180 degrees and placed, the position of the regulator assembly 420 on the medical catheter 450 is adjusted, and the regulator assembly 420 and the medical catheter 450 between the two assemblies form a first arc 470 downstream in the feeding direction. That is, a fixed distance is determined between the regulator assembly 420 and the dripping assembly 410 or injection needle tube 440 on one side. In step four, after the circling is completed, the regulator assembly 420 and the medical catheter 450 between the other assembly form a second arc 480 upstream in the feeding direction.

[0048] The apparatus for implementing the looping method of the present invention is limited to the apparatus used in the present invention. The present invention provides one implementation method. The focus of this technical solution is how to determine the position between the dripping assembly 410 and the latex tube 430 on both sides of the regulator assembly 420. Before looping, ensure that the regulator assembly 420 and the dripping assembly 410, or the regulator assembly 420 and the latex tube 430 are in opposite positions, and that the medical catheter 450 between them forms a first arc in the upstream direction of feeding. When the medical infusion tube 400 after looping is put into the bag, the dripping assembly 410 and the latex tube 430 of the injection assembly are located downstream in the direction of bag entry.

[0049] An automatic winding device for realizing an automatic winding method for medical infusion tubing includes an infusion tubing picking mechanism 100, a winding completion mechanism 200, and a picking mechanism 300. For example, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the infusion tube retrieval mechanism 100 and the part retrieval mechanism 300 are located above the circling completion mechanism 200 and slide horizontally. The infusion tube retrieval mechanism 100 includes a first mounting plate 110; a tube retrieval lifting cylinder 120 is provided at the top center of the first mounting plate 110; a set of first traveling sliders 130 are respectively provided at the top two side edges of the first mounting plate 110; a first working platform 140 is provided below the first mounting plate 110; the tube retrieval lifting cylinder 120 is drivenly connected to the first working platform 140; a plurality of turning components 160 are provided at equal intervals at the bottom of the first working platform 140; a turning rotation cylinder 150 is provided on one side wall of the first working platform 140; the output end of the turning rotation cylinder 150 is drivenly connected to the plurality of turning components 160.

[0050] The turning assembly 160 includes a tube-supporting cylinder 1601; a tube-supporting rod 1602 is drivenly connected to the output end of the tube-supporting cylinder 1601; a first rotating block 1611 is rotatably connected to one side of the tube-supporting cylinder 1601; a dripping bucket clamping cylinder 1603 is provided at the end of the first rotating block 1611 away from the rotating shaft; a dripping bucket clamp 1604 is drivenly connected to the output end of the dripping bucket clamping cylinder 1603; an adjuster clamping cylinder 1605 is provided on the side of the dripping bucket clamping cylinder 1603 away from the tube-supporting cylinder 1601. The output end of the regulator clamping cylinder 1605 is drivenly connected to the regulator clamping fixture 1606; a tube clamping cylinder 1607 is provided on the side of the regulator clamping cylinder 1605 away from the drip chamber clamping cylinder 1603; an infusion tube clamping fixture 1608 is drivenly connected to the output end of the tube clamping cylinder 1607; an infusion tube alignment cylinder 1609 is provided on the side of the tube clamping cylinder 1607 away from the regulator clamping cylinder 1605; an infusion tube alignment plate 1610 is drivenly connected to the output end of the infusion tube alignment cylinder 1609.

[0051] For example, such as Figure 6 As shown, the winding completion mechanism 200 includes a second working platform 210; a plurality of winding rotation components 230 are rotatably connected at equal intervals to the top of the second working platform 210; a winding servo motor 220 is provided inside the second working platform 210; the output end of the winding servo motor 220 is drivenly connected to the plurality of winding rotation components 230; a translation plate 240 is provided at the top edge of the second working platform 210; a winding translation cylinder 270 is provided on one side of the second working platform 210; the winding translation cylinder 270 is drivenly connected to the translation plate 240; a plurality of winding tension cylinders 250, the same number as the winding rotation components 230, are provided at equal intervals at the bottom of the translation plate 240; the output end of each group of winding tension cylinders 250 extends above the translation plate 240 and is drivenly connected to two sets of tension rods 260.

[0052] For example, such as Figure 7 As shown, the rotating assembly 230 includes a rotating gripper cylinder 2301; a rotating platform 2302 is provided on the top of the rotating gripper cylinder 2301; a dripping bucket fixing plate 2303 and an adjuster fixing plate 2305 are respectively provided on the two sides of the top of the rotating platform 2302; a number of rotating support rods 2304 are provided on the top edge of the rotating platform 2302; the number of rotating support rods 2304 are connected to the output end of the rotating gripper cylinder 2301.

[0053] For example, such as Figure 8As shown, the part-retrieving mechanism 300 includes a second mounting plate 310; a part-retrieving up-and-down cylinder 320 is provided at the top center of the second mounting plate 310; a set of second traveling sliders 330 are respectively provided at the top two side edges of the second mounting plate 310; a third working platform 340 is provided below the second mounting plate 310; the output end of the part-retrieving up-and-down cylinder 320 is connected to the third working platform 340 in a transmission connection; a number of parts-retrieving rotating assemblies 360 are rotatably connected at equal intervals at the bottom of the third working platform 340; a part-retrieving rotating cylinder 350 is provided on one side wall of the third working platform 340; the output end of the part-retrieving rotating cylinder 350 is connected to the number of parts-retrieving rotating assemblies 360 in a transmission connection.

[0054] For example, such as Figure 9 As shown, the rotating component 360 includes a second rotating block 3601; the second rotating block 3601 is rotatably connected to the bottom of the third working platform 340 and is drively connected to the output end of the rotating cylinder 350. A front clamping cylinder 3602 and a rear clamping cylinder 3604 are respectively provided on the bottom two edges of the second rotating block 3601; a front clamping fixture 3603 and a rear clamping fixture 3605 are respectively provided on the output ends of the front clamping cylinder 3602 and the rear clamping cylinder 3604.

[0055] The working principle and usage method of the automatic winding device for medical infusion tubes proposed in this invention are as follows: For example, ... Figures 10-13As shown, in use, firstly, the infusion tube retrieval mechanism 100 is moved above the infusion tube. Then, the tube retrieval cylinder 120 is controlled to lower the first working platform 140. The drip chamber clamping cylinder 1603 is controlled to clamp the drip chamber of the infusion tube with the drip chamber clamp 1604. The regulator clamping cylinder 1605 is controlled to clamp the regulator clamp 1606 with the regulator clamp 1606 with the regulator clamp 1606. The tube clamping cylinder 1607 is controlled to clamp the infusion tube body with the infusion tube clamp 1608. Then, the first working platform 140 is raised and moved horizontally above the circling completion mechanism 200. Then, the turning and rotating cylinder 150 is controlled to rotate the first rotating block 1611, thereby causing the drip chamber clamping cylinder 1603 to rotate and turn around from the outside of the tube supporting cylinder 1601. During this process, the tube supporting cylinder 1603 rotates and turns around. The tube support rod 1602 on the output end of the tube cylinder 1601 is used to prevent the infusion tube from bending. Then, the first working platform 140 is controlled to descend, causing the turning assembly 160 to descend and clamp the tube body between the two sets of tension rods 260. The drip part of the infusion tube is clamped on the drip fixing plate 2303, and the regulator part of the infusion tube is clamped on the regulator fixing plate 2305. Then, the turning assembly 160 releases the clamps and rises. Then, the servo motor 220 drives several sets of circling rotation assemblies 230 to rotate, so that the infusion tube is wrapped around the outside of several sets of circling support rods 2304 to obtain an infusion tube coil. During this process, the circling tension cylinder 250 drives the two sets of tension rods 260 to give the infusion tube a certain clamping force to prevent the coil from being too loose. Then, the picking mechanism 300 moves horizontally above the circling completion mechanism 200, and controls the picking up and down cylinder 320 to drive the third working platform to descend, causing several sets of picking rotating components 360 to descend. Then, the picking front clamping cylinder 3602 drives the picking front clamping fixture 3603, and the picking rear clamping cylinder 3604 drives the picking rear clamping fixture 3605, which clamp the infusion tube coil from both sides to prevent it from loosening. Then, it rises to complete the circling operation.

[0056] Preferred, such as Figure 14-16 As shown, the drip clamp 1604 proposed in this embodiment of the invention can also clamp the latex tube 430 of the infusion tube and fix it on the drip fixing plate 2303, which can also complete the winding work.

[0057] By controlling the rotating assembly 360° to clamp and package the infusion tubing from both sides, and then rotating it, packaging is easier and more convenient.

[0058] By fixing the drip chamber and regulator of the infusion tubing to the turning assembly 160, and then rotating the drip chamber of the infusion tubing 180°, and then fixing the tubing body, regulator and drip chamber to the rotating assembly 230, the infusion tubing maintains a fixed distance between the regulator and the drip chamber before and after the rotation, thus improving the quality of the packaging after the rotation.

[0059] Based on the aforementioned automatic medical infusion tube winding device, this invention also proposes a winding method for the winding device. Exemplarily, the winding method includes:

[0060] The infusion tubing, drip chamber, and regulator are fixed to the turning assembly. Then, the turning assembly moves the entire infusion tubing above the circling completion mechanism and rotates the drip chamber of the infusion tubing 180° to turn it around.

[0061] Secure the body of the infusion tubing, after it has been turned around, between the two sets of tensioning rods; secure the drip chamber and regulator of the infusion tubing to the rotating assembly.

[0062] Start the winding servo motor to drive the winding rotating component to rotate at a constant speed, so that the infusion tube is wound around the outside of the winding rotating component to obtain an infusion tube coil;

[0063] Move the pre-removal clamp and post-removal clamp to both sides of the infusion tubing ring and start the operation. This will cause the pre-removal clamp and post-removal clamp to rise from both sides of the infusion tubing ring, completing the circling operation.

[0064] By attaching the drip chamber and regulator of the infusion tubing to the rotating assembly, and simultaneously using two sets of tensioning rods to hold the infusion tubing in place, the tubing is prevented from becoming too loose during winding and from easily coming apart when removed, thus improving the stability of the infusion tubing coil.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for automatically winding a medical infusion tube, comprising the following steps: characterized in that: Step 1: Straighten the infusion tubing and feed it, wherein the infusion tubing includes a drip chamber assembly, a regulator assembly and an injection assembly connected in sequence through a medical catheter, wherein the injection assembly includes a latex tubing and an injection needle tube; Step 2: Before circling the infusion tubing, rotate the latex tubing of the drip chamber assembly or injection assembly on one side of the regulator assembly by 180 degrees. At the same time, adjust the position of the regulator assembly on the medical catheter so that the latex tubing of the drip chamber assembly or injection assembly is positioned opposite to the regulator assembly and faces the opposite direction to the infusion tubing's entry into the bag. The medical catheter between the regulator assembly and the latex tubing of the drip chamber assembly or injection assembly forms the first arc segment, which is located downstream of the feeding direction. Step 3: Fix the tubing body, regulator assembly, and latex tubing of the drip chamber assembly or injection assembly that is positioned opposite the regulator assembly onto the rotating assembly. The latex tubing of the drip chamber assembly or injection assembly is fixed on the drip chamber fixing plate of the rotating assembly, and the regulator assembly is fixed on the regulator fixing plate of the rotating assembly. During the circling process, the relative positions of the regulator assembly and the latex tubing of the drip chamber assembly or injection assembly remain unchanged. Step 4: After the looping is completed, the drip chamber components and latex tubing on both sides of the regulator assembly face the same direction, but opposite to the direction of the infusion tube entering the bag. Guided by the second arc formed during the looping process of the medical catheter, the looped infusion tube enters the bag.

2. An automatic medical infusion tube winding device for implementing the automatic winding method of a medical infusion tube as described in claim 1, characterized in that: The device includes an infusion tube retrieval mechanism (100), a circling completion mechanism (200), and a part retrieval mechanism (300). The infusion tube retrieval mechanism (100) and the part retrieval mechanism (300) are both located above the circling completion mechanism (200) and slide horizontally. The infusion tube retrieval mechanism (100) includes a tube retrieval lifting cylinder (120). A first working platform (140) is drivenly connected to the output end of the tube retrieval lifting cylinder (120). Several sets of turning components (160) are evenly spaced at the bottom of the first working platform (140). The winding completion mechanism (200) includes a second working platform (210); a number of winding rotation components (230) are rotatably connected at equal intervals to the top of the second working platform (210); a translation plate (240) is provided at the top edge of the second working platform (210); a number of winding tension cylinders (250) with the same number as the winding rotation components (230) are provided at equal intervals at the bottom of the translation plate (240); the output end of each group of winding tension cylinders (250) extends above the translation plate (240) and is connected to two sets of tension rods (260). The turning assembly (160) includes a first rotating block (1611); the first rotating block (1611) is rotatably connected to the bottom of the first working platform (140); a dripping bucket clamping cylinder (1603) is provided at one end of the first rotating block (1611) away from the rotating shaft; a dripping bucket clamp (1604) is drivenly connected to the output end of the dripping bucket clamping cylinder (1603); an adjuster clamping cylinder (1605) is provided on one side of the dripping bucket clamping cylinder (1603); an adjuster clamp (1606) is drivenly connected to the output end of the adjuster clamping cylinder (1605).

3. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: The infusion tube taking mechanism (100) also includes a first mounting plate (110); the first mounting plate (110) is located above the first working platform (140); a set of first walking sliders (130) are respectively provided on the top two sides of the first mounting plate (110); a turning rotary cylinder (150) is provided on one side wall of the first working platform (140); the output end of the turning rotary cylinder (150) is connected to several sets of turning components (160) in a transmission connection.

4. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: The turning assembly (160) also includes a tube-supporting cylinder (1601); the tube-supporting cylinder (1601) is located on the side away from the regulator clamping cylinder (1605) of the dripping bucket clamping cylinder (1603); a tube-supporting rod (1602) is connected to the output end of the tube-supporting cylinder (1601).

5. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: A tube clamping cylinder (1607) is provided on the side of the regulator clamping cylinder (1605) away from the drip chamber clamping cylinder (1603); an infusion tube clamp (1608) is driven to the output end of the tube clamping cylinder (1607); an infusion tube calibration cylinder (1609) is provided on the side of the tube clamping cylinder (1607) away from the regulator clamping cylinder (1605); an infusion tube calibration plate (1610) is driven to the output end of the infusion tube calibration cylinder (1609).

6. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: The second working platform (210) is equipped with a servo motor (220); the output end of the servo motor (220) is connected to several sets of servo motors (230); a servo motor (220) is provided on one side of the second working platform (210); the servo motor (220) is connected to a servo motor (230) (for transmission); the servo motor (220) is connected to a servo motor (240) (for transmission).

7. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: The rotating assembly (230) includes a rotating gripper cylinder (2301); the top of the rotating gripper cylinder (2301) is provided with a rotating platform (2302); the top two sides of the rotating platform (2302) are respectively provided with a dripping bucket fixing plate (2303) and an adjuster fixing plate (2305); the top edge of the rotating platform (2302) is provided with a number of rotating support rods (2304); the number of rotating support rods (2304) are connected to the output end of the rotating gripper cylinder (2301) for transmission.

8. The automatic winding device for medical infusion tubing according to claim 2, characterized in that: The part-retrieving mechanism (300) includes a second mounting plate (310); a part-retrieving up-and-down cylinder (320) is provided at the top center of the second mounting plate (310); a set of second traveling sliders (330) are respectively provided at the top two side edges of the second mounting plate (310); a third working platform (340) is provided below the second mounting plate (310); the output end of the part-retrieving up-and-down cylinder (320) is connected to the third working platform (340) in a transmission connection; several sets of part-retrieving rotating components (360) are rotatably connected at equal intervals at the bottom of the third working platform (340); a part-retrieving rotating cylinder (350) is provided on one side wall of the third working platform (340); The output end of the rotary cylinder (350) is connected to several sets of rotary assemblies (360), the rotary assembly (360) includes a second rotating block (3601); the second rotating block (3601) is rotatably connected to the bottom of the third working platform (340) and is connected to the output end of the rotary cylinder (350); a front clamping cylinder (3602) and a rear clamping cylinder (3604) are respectively provided on the bottom two sides of the second rotating block (3601); a front clamping fixture (3603) and a rear clamping fixture (3605) are respectively provided on the output ends of the front clamping cylinder (3602) and the rear clamping cylinder (3604).

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