Guide pipe winding and tensioning structure and guide pipe winding device

Abstract

The utility model provides a guide pipe winding and tensioning structure and a guide pipe winding device. The guide pipe winding and tensioning structure comprises a fixed clamping jaw and an installation base. The fixed clamping jaw is used for clamping one end of the fixed catheter and is spaced from the mounting base; a restraint cavity and an air guide channel which communicate with each other are formed in the mounting base; the inner wall of the restraint cavity is used for limiting the catheter; and the gas guide channel is used for extracting gas from the constraint cavity. According to the utility model, at least one part of the periphery of the guide pipe is adsorbed at the communication part of the air guide channel and the constraint cavity under the action of negative pressure, so that the friction force between the periphery of the guide pipe and the inner wall of the constraint cavity is increased, and the part of the guide pipe between the fixed clamping jaw and the mounting base is tensioned; according to the guide pipe winding and tensioning device, the whole guide pipe winding and tensioning structure tends to be miniaturized and simplified, space and cost are effectively saved, friction force is controllable and soft, and the problem that a guide pipe seriously deforms and is lengthened and damaged is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical catheter winding equipment, and particularly relates to a catheter winding tensioning structure and a catheter winding device. Background Art

[0002] Before the existing catheters for infusion sets are packaged, a winding process is required. This winding process is generally completed manually or by an automated catheter winding device. Manual operation has low efficiency and requires a strict aseptic operation environment to meet the requirements of aseptic process operations. Therefore, it is gradually being phased out; catheter winding devices that can automatically wind catheters are widely used.

[0003] Currently, although some automated catheter winding devices have been used in the industry, these automated catheter winding devices are relatively simple. Typically, a catheter winding process is to clamp both ends of the catheter by two vertically arranged robotic arms respectively. One robotic arm clamps the starting end of the catheter, and the other robotic arm clamps the end of the catheter, so that the catheter remains straight and taut during winding. The robotic arm clamping the starting end of the catheter rotates around its own axis. As the robotic arm rotates, the robotic arm clamping the end of the catheter moves closer to the robotic arm clamping the starting end of the catheter along with the catheter, and finally completes the catheter winding. The above winding method has many defects when winding catheters of different lengths. For example: 1. The above winding method requires more equipment and occupies a large space, which is not conducive to the efficient use of space; 2. The robotic arm clamping the end of the catheter is usually slidably arranged on the external frame. Limited by the overall space and the fixed size of the external frame, the movement range of the robotic arm is limited. When winding a longer catheter, the robotic arm clamping the end of the catheter cannot ensure that the catheter is always in a taut state, and thus cannot ensure the winding effect, easily resulting in problems such as unstable catheter winding production and a high product defect rate. In addition, since the volume and weight of the catheters for infusion sets are usually large, this may cause the catheters to easily fall off from the clamping of the robotic arm, thereby seriously affecting the normal production process. Therefore, the catheter winding tensioning structure in the prior art cannot flexibly adapt to the winding work of various different sizes of catheters and cannot meet the production requirements of rapid winding of different types of catheters. Summary of the Utility Model

[0004] The utility model provides a catheter winding tensioning structure and a catheter winding device to solve the problems that the catheter winding tensioning structure in the prior art cannot flexibly adapt to the winding work of various different sizes of catheters and occupies a large space.

[0005] In order to solve the above problems, according to one aspect of the utility model, a catheter winding and tensioning structure is provided, including: a fixed clamp and a mounting base; the fixed clamp is used to clamp one end of the fixed catheter, and is spaced apart from the mounting base; the mounting base has a constraint cavity and an air guide channel that are interconnected; the inner wall of the constraint cavity is used to limit the catheter; the air guide channel is used to extract gas from the constraint cavity.

[0006] Furthermore, the catheter winding and tensioning structure also includes a first driving structure, and the mounting base is arranged on the first driving structure; the first driving structure is used to drive the mounting base to reciprocate in the vertical direction so that the catheter can be spirally coiled in the vertical direction.

[0007] Furthermore, the catheter winding and tensioning structure also includes a second driving structure, and the first driving structure is arranged on the second driving structure; the second driving structure is used to drive the first driving structure and the mounting base to reciprocate in the horizontal direction to approach or move away from the fixed clamp; when the end of the catheter away from the fixed clamp is about to move into the constraint cavity, the second driving structure drives the mounting base to move closer to the fixed clamp to follow the movement of the end of the catheter away from the fixed clamp.

[0008] Furthermore, the first driving structure includes a first sliding base and a first driving cylinder, and the mounting base can be slidably arranged on the first sliding base in a vertical direction; the first driving cylinder is arranged on the first sliding base and connected to the mounting base, and the first driving cylinder is used to drive the mounting base to move on the first sliding base; the second driving structure includes a second sliding base and a second driving cylinder, and the first sliding base can be slidably arranged on the second sliding base in a horizontal direction; the second driving cylinder is arranged on the second sliding base and connected to the first sliding base, and the second driving cylinder is used to drive the first sliding base to move on the second sliding base.

[0009] Furthermore, the catheter winding and tensioning structure also includes a bearing platform, which is arranged on the first driving structure to follow the movement of the first driving structure; the bearing platform is located on the side of the mounting base away from the fixed clamp, and is used to carry at least a portion of the catheter that has not entered the constraint cavity.

[0010] Furthermore, the constraint cavity includes a first conical section and a middle section, the first conical section is connected to one end of the middle section, and the central axis is collinear with the central axis of the middle section; the large end opening of the first conical section is away from the fixed clamp; the air guide channel is connected to the middle section; the large end opening size of the first conical section is larger than that of the middle section, and is used to guide the catheter into the middle section.

[0011] Further, the restraint cavity further includes a second tapered section. The second tapered section communicates with the other end of the intermediate section, and the central axis is collinear with the central axis of the intermediate section. The large end opening of the second tapered section faces the fixed jaw. The size of the large end opening of the second tapered section is larger than the size of the intermediate section, and is used to guide the catheter to slide out from the second tapered section.

[0012] Further, the central axis of the air guide channel is perpendicular to the central axis of the restraint cavity. There are multiple air guide channels, and the multiple air guide channels are arranged at intervals along the axial direction and / or the circumferential direction of the restraint cavity.

[0013] Further, the multiple air guide channels include a first channel and a second channel. The first channel and the second channel are correspondingly arranged on both sides of the restraint cavity. The central axis of the first channel is collinear with the central axis of the second channel, and both are horizontally arranged. The intersection point of the central axis of the first channel and the central axis of the restraint cavity is located at the centroid position of the cross-section of the restraint cavity in the vertical direction at this position.

[0014] Further, the mounting base includes a carrier, a first base body and a second base body that are respectively detachably arranged on the carrier. The first base body and the second base body are correspondingly matched, and the inside of the first base body communicates with the inside of the second base body to jointly form the restraint cavity. The air guide channel is arranged in the first base body and / or the second base body.

[0015] According to another aspect of the present invention, a catheter winding device is provided, including the above-mentioned catheter winding and tensioning structure. The catheter winding device further includes a support plate. The support plate is used to carry the catheter and rotates simultaneously with the fixed jaw.

[0016] Further, the catheter winding device further includes a servo motor, a rotating shaft, a belt pulley, a rotating frame and a winding column arranged on the rotating frame. The belt pulley is arranged on the rotating shaft and is belt-drivenly connected to the rotating shaft of the servo motor so that the servo motor drives the rotating shaft to rotate. The rotating shaft is connected to the rotating frame to drive the rotating frame to rotate along the central axis of the rotating shaft. The fixed jaw and the support plate are both arranged on the rotating frame and rotate with the rotating frame to wind the catheter around the winding column.

[0017] Applying the technical solution of the present invention, the present invention provides a catheter winding and tensioning structure, including: a fixed jaw and a mounting base; the fixed jaw is used to clamp and fix one end of the catheter and is arranged at an interval from the mounting base; the inside of the mounting base has a restraint cavity and an air guide channel that communicate with each other; the inner wall of the restraint cavity is used to limit the catheter; the air guide channel is used to extract gas from the restraint cavity.

[0018] The utility model extracts gas from the constraint cavity through the gas guide channel, so that at least a part of the outer periphery of the catheter is adsorbed at the connection between the gas guide channel and the constraint cavity under the action of negative pressure, increasing the friction between the outer periphery of the catheter and the inner wall of the constraint cavity, so that the part of the catheter between the fixed clamping jaws and the mounting base is tightened; by arranging the constraint cavity and the gas guide channel inside the mounting base to cooperate with each other, the friction between the outer periphery of the catheter and the inner wall of the constraint cavity is increased by adsorption, and the reliable tightening of the part of the catheter between the fixed clamping jaws and the mounting base is realized by using the friction, which not only makes the overall structure of the catheter winding and tightening structure tend to be miniaturized and simplified, effectively saving space and cost, but also because the friction is controllable and relatively gentle, avoiding the problems of serious deformation and elongation damage of the catheter; compared with the prior art in which two robotic arms are used to clamp the two ends of the catheter respectively for tightening, the catheter winding and tightening structure proposed by the utility model does not need to be provided with an external frame body, and is not limited by the overall space and the size of the external frame body. When it is necessary to wind a longer catheter, the mounting base in the utility model can ensure that the catheter is always in a tightened state without large-range movement, thereby improving the winding effect on the premise of saving space and avoiding the problems of unstable catheter winding production and high product defect rate; the catheter winding and tightening structure proposed by the utility model can be flexibly adapted to the winding work of various different sizes of catheters, effectively meeting the production requirements of rapid winding of different types of catheters, with a simple structure and low cost, and is suitable for large-scale popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0020] Figure 1 shows a partial structural schematic diagram of a catheter winding device provided by an embodiment of the utility model;

[0021] Figure 2 shows Figure 1 a partial structural schematic diagram of

[0022] Figure 3 shows a partial structural schematic diagram of the catheter winding device provided by an embodiment of the utility model from another angle;

[0023] Figure 4 shows an external structural schematic diagram of a mounting base provided by an embodiment of the utility model;

[0024] Figure 5 shows an internal structural schematic diagram of the mounting base provided by an embodiment of the utility model from a front view angle.

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 10. Fixed clamping jaw;

[0027] 20. Mounting base; 21. Constraint cavity; 211. First tapered section; 212. Intermediate section; 213. Second tapered section; 22. Air guide channel; 221. First channel; 222. Second channel; 23. Carrier; 24. First base; 25. Second base;

[0028] 30. First driving structure; 31. First sliding base; 32. First driving cylinder;

[0029] 40. Second driving structure; 41. Second sliding base; 42. Second driving cylinder;

[0030] 50. Loading platform;

[0031] 60. Support plate;

[0032] 70. Servo motor; 80. Rotating shaft; 90. Belt pulley; 100. Rotating frame; 110. Winding column. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0034] As Figures 1 to 5 shown, the embodiment of the present invention provides a catheter winding and tensioning structure, including: a fixed clamping jaw 10 and a mounting base 20; the fixed clamping jaw 10 is used to clamp and fix one end of the catheter and is spaced apart from the mounting base 20; the mounting base 20 internally has a mutually communicating constraint cavity 21 and an air guide channel 22; the inner wall of the constraint cavity 21 is used to limit the catheter (the catheter can slide through the constraint cavity 21 and is in limit guiding cooperation with the inner wall of the constraint cavity 21); the air guide channel 22 is used to extract gas from the constraint cavity 21, so that at least a part of the outer periphery of the catheter is adsorbed at the communication part of the air guide channel 22 and the constraint cavity 21 under the action of negative pressure, increasing the friction force between the outer periphery of the catheter and the inner wall of the constraint cavity 21, so that the part of the catheter between the fixed clamping jaw 10 and the mounting base 20 is tensioned.

[0035] The utility model increases the friction force between the outer periphery of the catheter and the inner wall of the constraint cavity 21 through adsorption by the cooperative work of the constraint cavity 21 and the air guide channel 22 arranged inside the mounting base 20, and utilizes the friction force to realize the reliable tensioning of the part of the catheter located between the fixed clamping jaws 10 and the mounting base 20. This not only makes the overall structure of the catheter winding and tensioning structure tend to be miniaturized and simplified, effectively saving space and cost, but also, because the friction force is controllable and relatively gentle, avoids the problems of catheter deformation and elongation damage. Compared with the prior art method of tensioning by using two robotic arms to clamp the two ends of the catheter respectively, the catheter winding and tensioning structure proposed by the utility model does not need to set up an external frame body, and is not limited by the overall space and the size of the external frame body. When it is necessary to wind a longer catheter, the mounting base 20 in the utility model can ensure that the catheter is always in a tensioned state without large-range movement, thereby improving the winding effect on the premise of saving space and avoiding the problems of unstable catheter winding production and high product defect rate. The catheter winding and tensioning structure proposed by the utility model can flexibly adapt to the winding work of various different sizes of catheters, effectively meet the production requirements of rapid winding of different types of catheters, has a simple structure and low cost, and is suitable for large-scale popularization and use.

[0036] In a specific embodiment of the utility model, the catheter winding and tensioning structure further includes an air pump, and the air pump is communicated with the air guide channel 22 through a pipeline; the air pump is used for extracting gas from the air guide channel 22.

[0037] As Figure 1 and Figure 3 shown, the catheter winding and tensioning structure further includes a first driving structure 30, and the mounting base 20 is arranged on the first driving structure 30; the first driving structure 30 is used for driving the mounting base 20 to reciprocate in the vertical direction so that the catheter can be spirally wound in the vertical direction.

[0038] By setting the first driving structure 30, the mounting base 20 has the freedom of moving up and down, and further enables the catheter to be spirally wound in the vertical direction, providing structural support for the stacking and winding of the catheter in the up and down directions.

[0039] As Figure 1 and Figure 3 shown, the catheter winding and tensioning structure further includes a second driving structure 40, and the first driving structure 30 is arranged on the second driving structure 40; the second driving structure 40 is used for driving the first driving structure 30 and the mounting base 20 to reciprocate in the horizontal direction to approach or move away from the fixed clamping jaws 10; when the end of the catheter far away from the fixed clamping jaws 10 is about to move into the constraint cavity 21, the second driving structure 40 drives the mounting base 20 to move closer to the fixed clamping jaws 10 to follow the movement of the end of the catheter far away from the fixed clamping jaws 10.

[0040] By setting the second driving structure 40, the mounting base 20 has the freedom of horizontal movement. When the coiling of the catheter is nearly completed, the second driving structure 40 can drive the mounting base 20 to move so as to follow the end of the catheter away from the fixed jaw 10, thereby ensuring the effective straightening of the tail end of the catheter and guaranteeing the coiling quality of the catheter.

[0041] As Figure 1 and Figure 3 shown, the first driving structure 30 includes a first sliding base 31 and a first driving cylinder 32. The mounting base 20 is slidably arranged on the first sliding base 31 in the vertical direction; the first driving cylinder 32 is arranged on the first sliding base 31 and is connected to the mounting base 20. The first driving cylinder 32 is used to drive the mounting base 20 to move on the first sliding base 31; the second driving structure 40 includes a second sliding base 41 and a second driving cylinder 42. The first sliding base 31 is slidably arranged on the second sliding base 41 in the horizontal direction; the second driving cylinder 42 is arranged on the second sliding base 41 and is connected to the first sliding base 31. The second driving cylinder 42 is used to drive the first sliding base 31 to move on the second sliding base 41.

[0042] With such a setting, not only the working reliability of the first driving structure 30 and the second driving structure 40 is ensured, but also the structures of the first driving structure 30 and the second driving structure 40 tend to be simplified, thereby facilitating installation and effectively reducing the cost.

[0043] As Figure 1 and Figure 3 shown, the catheter coiling and tensioning structure further includes a bearing platform 50. The bearing platform 50 is arranged on the first driving structure 30 to move along with the first driving structure 30; the bearing platform 50 is located on the side of the mounting base 20 away from the fixed jaw 10 and is used to bear at least a part of the catheter that has not entered the constraint cavity 21.

[0044] By setting the bearing platform 50, the reliable bearing of the catheter that has not entered the constraint cavity 21 is realized, facilitating the stable progress of the catheter coiling work.

[0045] As Figure 3 、 Figure 4 and Figure 5 shown, the constraint cavity 21 includes a first tapered section 211 and an intermediate section 212. The first tapered section 211 is communicated with one end of the intermediate section 212, and the central axis is collinear with the central axis of the intermediate section 212; the large end opening of the first tapered section 211 faces away from the fixed jaw 10; the air guide channel 22 is communicated with the intermediate section 212; the size of the large end opening of the first tapered section 211 is larger than the size of the intermediate section 212 and is used to guide the catheter into the intermediate section 212.

[0046] By setting the large-end opening size of the first tapered section 211 to be larger than the size of the intermediate section 212, the funnel principle is utilized to effectively guide the catheter into the intermediate section 212, thereby ensuring the smooth progress of the catheter winding operation.

[0047] As Figure 1 , Figure 2 and Figure 4 shown, the constraint cavity 21 further includes a second tapered section 213. The second tapered section 213 communicates with the other end of the intermediate section 212, and its central axis is collinear with the central axis of the intermediate section 212; the large-end opening of the second tapered section 213 faces the fixed jaw 10; the large-end opening size of the second tapered section 213 is larger than the size of the intermediate section 212, and is used to guide the catheter to slide out from the second tapered section 213.

[0048] By setting the large-end opening size of the second tapered section 213 to be larger than the size of the intermediate section 212, it not only realizes the efficient guidance for the catheter to slide out from the second tapered section 213, but also avoids the problem of the catheter being knocked, further ensuring the smooth progress of the catheter winding operation.

[0049] As Figure 5 shown, the central axis of the air guide channel 22 is perpendicular to the central axis of the constraint cavity 21; there are multiple air guide channels 22, and the multiple air guide channels 22 are arranged at intervals along the axial direction and / or the circumferential direction of the constraint cavity 21.

[0050] By setting multiple air guide channels 22, the friction between the outer periphery of the catheter and the inner wall of the constraint cavity 21 can be flexibly controlled.

[0051] As Figure 5 shown, the multiple air guide channels 22 include a first channel 221 and a second channel 222. The first channel 221 and the second channel 222 are correspondingly arranged on both sides of the constraint cavity 21; the central axis of the first channel 221 is collinear with the central axis of the second channel 222, and both are horizontally arranged; the intersection point of the central axis of the first channel 221 and the central axis of the constraint cavity 21 is located at the centroid position of the cross-section of the constraint cavity 21 in the vertical direction.

[0052] By setting the first channel 221 and the second channel 222, the cross-section of the catheter in the constraint cavity 21 is deformed into a quasi-elliptical shape, so that the friction mainly affects both sides of the catheter (the areas on both sides of the major axis of the quasi-elliptical shape are smaller), avoiding large-area wear on the outer periphery of the catheter.

[0053] As Figure 4 and Figure 5As shown, the mounting base 20 includes a carrier 23, a first base body 24 and a second base body 25 which are respectively detachably arranged on the carrier 23; the first base body 24 and the second base body 25 are correspondingly matched, and the inside of the first base body 24 is communicated with the inside of the second base body 25 to jointly form a constraint cavity 21; the air guide channel 22 is arranged in the first base body 24 and / or the second base body 25.

[0054] With such a setting, the structure of the mounting base 20 tends to be simplified, which is convenient for the processing, forming, installation, adjustment and subsequent maintenance of the mounting base 20, and at the same time effectively reduces the cost.

[0055] As Figure 1 、 Figure 2 and Figure 3 shown, the present invention also provides a catheter winding device, which includes the above-mentioned catheter winding and tensioning structure; the catheter winding device further includes a support plate 60; the support plate 60 is used for carrying the catheter and rotates simultaneously with the fixed jaw 10.

[0056] The catheter winding device proposed by the present invention has a simple structure, low cost and reliable operation, and is suitable for large-scale popularization and use.

[0057] As Figure 1 、 Figure 2 and Figure 3 shown, the catheter winding device further includes a servo motor 70, a rotating shaft 80, a transmission belt pulley 90, a rotating frame 100 and a winding column 110 arranged on the rotating frame 100; the transmission belt pulley 90 is arranged on the rotating shaft 80 and is belt-drivenly connected to the rotating shaft of the servo motor 70 so that the servo motor 70 drives the rotating shaft 80 to rotate; the rotating shaft 80 is connected to the rotating frame 100 to drive the rotating frame 100 to rotate along the central axis of the rotating shaft 80; the fixed jaw 10 and the support plate 60 are both arranged on the rotating frame 100 and rotate with the rotating frame 100 to wind the catheter around the winding column 110.

[0058] By arranging the transmission belt pulley 90 on the rotating shaft 80 and being belt-drivenly connected to the rotating shaft of the servo motor 70, the flexible control of the number of winding turns of the catheter is realized; by arranging the fixed jaw 10 and the support plate 60 on the rotating frame 100, it is ensured that the catheter can be wound around the winding column 110 efficiently and safely without damage.

[0059] Now, the specific working process and principle of the present invention will be described in detail as follows:

[0060] When the winding work starts, the constraint chamber 21 of the mounting base 20 is controlled by the air pump to maintain a vacuum adsorption state, so that the portion of the catheter between the fixed clamp 10 and the mounting base 20 is stably in a stretched state; by controlling the magnitude of the friction force and setting the roughness of the inner wall of the constraint chamber 21, it can be ensured that the catheter will not suffer from plastic deformation, elongation damage, and other problems when it is in a stretched state;

[0061] The fixed clamp 10 of the catheter winding device clamps the starting end of the catheter, starts the servo motor 70, and starts winding the catheter. During the catheter winding process, the mounting base 20 can rise under the drive of the first drive structure 30, and gradually move with the end of the catheter under the drive of the second drive structure 40. It can be set that every time the catheter is wound about 180°, the first drive structure 30 drives the mounting base 20 to jump up and down once, so as to avoid the fixed clamp 10 being rolled into the inside when the catheter is wound; when the catheter is wound into the last circle, the second drive structure 40 drives the mounting base 20 to gradually follow to the extreme position (that is, the position closest to the winding column 110); when the catheter is wound, the first drive structure 30 drives the mounting base 20 to descend to the starting position, so that after the catheter is wound, its starting end and the end are located in the same horizontal plane, which is convenient for subsequent bagging and transportation.

[0062] In summary, the utility model provides a catheter winding and tensioning structure and a catheter winding device. The utility model sets a restraining chamber 21 and an air guide channel 22 inside the mounting base 20 to cooperate with each other, and increases the friction between the outer periphery of the catheter and the inner wall of the restraining chamber 21 by adsorption. The friction force is used to achieve reliable tensioning of the part of the catheter between the fixed clamping jaw 10 and the mounting base 20, which makes the overall structure of the catheter winding and tensioning structure tend to be miniaturized and simplified, effectively saving space and cost, and because the friction force is controllable and relatively gentle, the problem of catheter deformation and elongation damage is avoided. Compared with the prior art that uses two mechanical arms to clamp the two ends of the catheter respectively, The catheter winding and tensioning structure proposed in the utility model does not need to set up an external frame, and will not be limited by the overall space and the size of the external frame. When it is necessary to wind a longer catheter, the mounting base 20 in the utility model does not need to move in a large range to ensure that the catheter is always in a tensioned state, thereby improving the winding effect while saving space, avoiding the problems of unstable catheter winding production and high product defective rate. The catheter winding and tensioning structure proposed in the utility model can be flexibly adapted to the winding work of catheters of various sizes, effectively meeting the production needs of fast winding of different types of catheters, has a simple structure and low cost, and is suitable for large-scale promotion and use.

[0063] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0065] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0066] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0067] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0068] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A catheter winding and tensioning structure, characterized in that: include: A fixed clamp (10) and a mounting base (20); the fixed clamp (10) is used to clamp one end of a fixed conduit and is spaced apart from the mounting base (20); the mounting base (20) has a restraining cavity (21) and an air guide channel (22) that are interconnected; the inner wall of the restraining cavity (21) is used to limit the conduit; and the air guide channel (22) is used to extract gas from the restraining cavity (21).

2. The catheter winding and tensioning structure according to claim 1, characterized in that: The catheter winding and tensioning structure also includes a first driving structure (30), and the mounting base (20) is arranged on the first driving structure (30); the first driving structure (30) is used to drive the mounting base (20) to reciprocate in the vertical direction so that the catheter can be spirally coiled in the vertical direction.

3. The catheter winding and tensioning structure according to claim 2, characterized in that: The catheter winding and tensioning structure also includes a second driving structure (40), and the first driving structure (30) is arranged on the second driving structure (40); the second driving structure (40) is used to drive the first driving structure (30) and the mounting base (20) to reciprocate in a horizontal direction to approach or move away from the fixed clamp (10); when the end of the catheter away from the fixed clamp (10) is about to move into the restraining cavity (21), the second driving structure (40) drives the mounting base (20) to move closer to the fixed clamp (10) to follow the movement of the end of the catheter away from the fixed clamp (10).

4. The catheter winding and tensioning structure according to claim 3, characterized in that: The first driving structure (30) comprises a first sliding base (31) and a first driving cylinder (32); the mounting base (20) is slidably arranged on the first sliding base (31) in a vertical direction; the first driving cylinder (32) is arranged on the first sliding base (31) and is connected to the mounting base (20); the first driving cylinder (32) is used to drive the mounting base (20) to move on the first sliding base (31); The second driving structure (40) comprises a second sliding base (41) and a second driving cylinder (42); the first sliding base (31) can be slidably arranged on the second sliding base (41) in a horizontal direction; the second driving cylinder (42) is arranged on the second sliding base (41) and is connected to the first sliding base (31); the second driving cylinder (42) is used to drive the first sliding base (31) to move on the second sliding base (41).

5. The catheter winding and tensioning structure according to claim 3, characterized in that: The catheter winding and tensioning structure also includes a bearing platform (50), which is arranged on the first driving structure (30) to follow the movement of the first driving structure (30); the bearing platform (50) is located on the side of the mounting base (20) away from the fixed clamp (10), and is used to carry at least a portion of the catheter that has not entered the restraining cavity (21).

6. The catheter winding and tensioning structure according to claim 1, characterized in that: The restraining chamber (21) comprises a first conical section (211) and a middle section (212); the first conical section (211) is connected to one end of the middle section (212), and the central axis is collinear with the central axis of the middle section (212); the large end opening of the first conical section (211) faces away from the fixed clamp (10); the air guide channel (22) is connected to the middle section (212); the large end opening size of the first conical section (211) is larger than the size of the middle section (212), and is used to guide the catheter into the middle section (212).

7. The catheter winding and tensioning structure according to claim 6, characterized in that: The restraining cavity (21) further comprises a second conical section (213), the second conical section (213) being connected to the other end of the middle section (212), and the central axis of the second conical section (213) being colinear with the central axis of the middle section (212); the large end opening of the second conical section (213) faces the fixed clamp (10); the large end opening size of the second conical section (213) is larger than the size of the middle section (212), and is used to guide the catheter to slide out of the second conical section (213).

8. The catheter winding and tensioning structure according to claim 1, characterized in that: The central axis of the air guiding channel (22) is perpendicular to the central axis of the constraining cavity (21); there are a plurality of air guiding channels (22), and the plurality of air guiding channels (22) are arranged at intervals along the axial direction and / or circumferential direction of the constraining cavity (21).

9. The catheter winding and tensioning structure according to claim 8, characterized in that: The plurality of air guide channels (22) include a first channel (221) and a second channel (222), wherein the first channel (221) and the second channel (222) are correspondingly arranged on both sides of the constraint cavity (21); the central axis of the first channel (221) and the central axis of the second channel (222) are collinear and both are arranged horizontally; and the intersection of the central axis of the first channel (221) and the central axis of the constraint cavity (21) is located at the centroid position of the cross section of the constraint cavity (21) in the vertical direction at that position.

10. The catheter winding and tensioning structure according to claim 1, characterized in that: The mounting base (20) comprises a carrier (23), a first substrate (24) and a second substrate (25) which are detachably arranged on the carrier (23); the first substrate (24) and the second substrate (25) are respectively matched with each other, and the interior of the first substrate (24) is connected with the interior of the second substrate (25) to jointly form the constraint cavity (21); the air guide channel (22) is arranged in the first substrate (24) and / or the second substrate (25).

11. A catheter winding device, characterized in that: It comprises the catheter winding and tensioning structure according to any one of claims 1 to 10; the catheter winding device also comprises a support plate (60); the support plate (60) is used to carry the catheter and rotate simultaneously with the fixed clamp (10).

12. The catheter winding device according to claim 11, characterized in that: The catheter winding device also includes a servo motor (70), a rotating shaft (80), a transmission pulley (90), a rotating frame (100), and a winding column (110) arranged on the rotating frame (100); the transmission pulley (90) is arranged on the rotating shaft (80) and is connected to the rotating shaft of the servo motor (70) in a transmission manner so that the servo motor (70) drives the rotating shaft (80) to rotate; the rotating shaft (80) is connected to the rotating frame (100) to drive the rotating frame (100) to rotate along the central axis of the rotating shaft (80); the fixed clamp (10) and the support plate (60) are both arranged on the rotating frame (100) and rotate with the rotating frame (100) to wind the catheter on the winding column (110).

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