Pipe cutting tool and medical instrument production system

Abstract

The utility model belongs to the technical field of pipeline cutting, and relates to a pipe cutting tool and a medical instrument production system.The pipe cutting tool comprises a base and a cutter, a pipe inlet hole allowing a pipeline to be inserted is formed in the base in the first direction in a penetrating mode, and a cutter avoiding groove is formed in the base in the second direction; the knife avoiding groove is communicated with the pipe inlet hole, and the second direction intersects with the first direction. The cutter slides along a second direction relative to the base; the cutter comprises a cutting part accommodated in the cutter avoiding groove; according to the pipe cutting tool, the cutting part of the cutter is arranged in the base, the cutting part is manually made to slide in the cutter avoiding groove in the second direction to achieve cutting of a to-be-cut pipeline in the pipe inlet hole, so that the pipe cutting efficiency is improved, it is guaranteed that the cutter cannot touch the hand of an operator during cutting, the risk of cutting fingers is reduced, and the pipe cutting efficiency is improved. In general, the pipe cutting tool and the medical instrument production system are high in pipe cutting efficiency and safe and reliable in cutting.

Description

Technical Field

[0001] The present application relates to the technical field of pipe cutting, and in particular to a pipe cutting tool and a medical device production system. Background Art

[0002] Medical hose is the main component of the blood purification circuit in the blood purifier, and its function is to ensure that the blood can circulate smoothly to achieve the purpose of purification. In the same model of blood purification circuit, different usage scenarios have different requirements for the length of the hose, or in other words, a set of blood purification circuits is often composed of several circuits with the same diameter but different lengths. Therefore, when producing and assembling the blood purifier, it is necessary to cut hoses of different target lengths.

[0003] The existing tube cutting process usually uses the cutting function of the hose extruder itself. Once the extrusion is completed, if you want to change the length of the hose, you can only do it by manually cutting with a blade, or directly by manual cutting. However, manual cutting is inefficient and easy to cut fingers, which is not very safe. Utility Model Content

[0004] The purpose of the embodiments of the present application is to solve the technical problems of low efficiency in pipeline cutting and low safety due to easy cutting of fingers.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a pipe cutting tool, which adopts the following technical solution:

[0006] The pipe cutting tool comprises:

[0007] The base is provided with a pipe inlet hole for inserting a pipe along a first direction and a knife avoidance groove along a second direction; the knife avoidance groove is communicated with the pipe inlet hole, and the second direction intersects with the first direction;

[0008] A cutter slides relative to the base along the second direction; the cutter comprises a cutting portion accommodated in the cutter avoidance groove;

[0009] When the cutter slides, the cutting portion slides along the cutter avoidance groove to cut off the pipeline in the pipe inlet hole at a position corresponding to the cutter avoidance groove.

[0010] In some embodiments of the present application, in the cutting state, the cutting portion of the cutter is arranged at an acute angle with the supporting surface where the pipeline is located;

[0011] Alternatively, the cutting portion of the cutter is arranged at an angle α to the supporting surface where the pipeline is located, wherein 20°≤α≤45°.

[0012] In some embodiments of the present application, the angle between the cutting portion of the cutter and the supporting surface where the pipeline is located is in the range of 25°≤α≤45°.

[0013] In some embodiments of the present application, a frosted surface in contact with the cutting portion is provided on the groove wall of the knife avoidance groove;

[0014] And / or, the pipe cutting tool further comprises a protective baffle, which is arranged on the base and is used to prevent the cutting portion of the cutter from being exposed from the cutter avoidance groove;

[0015] And / or, the base is configured as a transparent structure, or the pipe cutting tool further includes a perspective window, and the perspective window is disposed on the top surface of the base so as to observe the status of the pipeline in the pipe inlet hole.

[0016] In some embodiments of the present application, a length measuring piece is provided on the base; the length measuring piece is provided with a measuring mark, and the measuring mark is used to measure the cutting length of the pipeline in the first direction with the knife avoidance groove as a reference.

[0017] In some embodiments of the present application, the top surface of the base is provided with the measurement mark; or, the top surface of the base is provided with the measurement mark and a magnifying glass, and the magnifying glass covers the measurement mark;

[0018] And / or, a plurality of the pipe inlet holes are provided, and the sizes of the plurality of the pipe inlet holes are different; a retractable device with the measurement mark is provided on the pipe outlet side of at least one of the pipe inlet holes.

[0019] In some embodiments of the present application, the pipe cutting tool further includes a tool holder, the tool holder is provided with the cutting knife and is slidably disposed on the base along the second direction;

[0020] Alternatively, the pipe cutting tool further comprises a guide rail and a tool holder, wherein the guide rail is arranged on the base along the second direction, and the tool holder is slidably arranged on the guide rail and is provided with the cutting knife.

[0021] In some embodiments of the present application, a mounting groove is provided in the tool holder, or a mounting groove is provided which is provided at an acute angle or at an angle α to the support surface where the pipeline is located;

[0022] The cutter further comprises a cutter head, the cutter head is mounted in the mounting slot, and the cutting portion is exposed in the mounting slot;

[0023] And / or, the tool holder comprises:

[0024] The knife seat has the mounting groove on its side;

[0025] A sliding chassis, arranged on a side of the knife seat facing the pipe inlet hole, and matched with the guide rail in a concave-convex manner to be slidably connected to the guide rail along a second direction;

[0026] The mounting clip is detachably mounted on the knife seat at a position corresponding to the mounting groove, so as to detachably clamp the cutter on the knife holder.

[0027] In some embodiments of the present application, one of the guide rail and the sliding chassis is provided with a slide groove, and the other is provided with a convex strip that matches the slide groove concavely and convexly;

[0028] And / or, the sliding chassis is detachably recessed in the bottom surface of the knife seat.

[0029] In order to solve the above technical problems, an embodiment of the present application further provides a medical device production system, which adopts the following technical solution: the medical device production system includes the above-mentioned tube cutting tool.

[0030] Compared with the prior art, the pipe cutting tool and medical device production system provided in the embodiment of the present application have the following beneficial effects:

[0031] The pipe cutting tool is configured to provide a knife avoidance groove on a base, the extension direction (corresponding to the second direction) of which intersects with the extension direction (corresponding to the first direction) of the pipe inlet hole and is communicated with the pipe inlet hole. The cutting part of the cutter is accommodated in the knife avoidance groove, so that the cutting part of the cutter is built into the base. The cutting of the pipe to be cut in the pipe inlet hole is achieved by manually sliding the cutting part in the knife avoidance groove along the second direction. On the one hand, compared with manual pipe cutting, the pipe cutting efficiency can be greatly improved; on the other hand, it ensures that the cutter will not touch the operator's hand during cutting, which is beneficial to reduce the risk of cutting fingers and improve safety of use. That is, the pipe cutting tool has high pipe cutting efficiency and safe and reliable cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the scheme in this application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are some embodiments of this application or corresponding prior art. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of a pipe cutting tool from one perspective in an example of the present application;

[0034] Figure 2 yes Figure 1 3D exploded diagram of the center pipe cutting tool;

[0035] Figure 3is a schematic diagram of the three-dimensional structure of the pipe cutting tool in one example of the present application from another perspective;

[0036] Figure 4 This is a force analysis diagram of a pipe cutter of a pipe cutting tool in an example of the present application;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of a pipe cutting tool in an example of the present application after removing the tool holder and the cutting tool from one viewing angle;

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the pipe cutting tool in one example of the present application after the tool holder and the cutting tool are removed from another perspective;

[0039] Figure 7 It is a schematic diagram of a three-dimensional structure of a cutter installed on a tool holder of a pipe cutting tool in an example of the present application;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the tool holder of the pipe cutting tool in an example of the present application after the mounting clamp is removed;

[0041] Fig. 9 It is a three-dimensional exploded schematic diagram of a tool holder in an example of the present application.

[0042] The reference numerals in the accompanying drawings are as follows:

[0043] 100, pipe cutting tool; 200, first direction; 300, second direction; 400, pipeline; 500, support surface;

[0044] 1. Base; 11. Pipe inlet hole; 12. Knife avoidance groove; 13. Perspective window;

[0045] 2. Cutter; 21. Cutting portion; 22. Cutter head; 23. Through hole;

[0046] 3. Protective baffle;

[0047] 4. Length measuring piece; 41. Measuring mark; 42. Retractable device;

[0048] 5. tool holder; 51. tool holder; 511. mounting groove; 512. second threaded hole; 513. groove; 52. sliding chassis; 521. convex strip; 522. third mounting hole; 53. mounting clip; 531. second mounting hole;

[0049] 6. Guide rail; 61. Slide groove; 62. First mounting hole. DETAILED DESCRIPTION

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of this application; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. For example, the directions or positions indicated by the terms "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0051] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically limited.

[0052] In the specification and claims of this application and the above-mentioned drawings, when an element is referred to as being "fixed to" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0053] In addition, reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0054] An embodiment of the present application provides a tube cutting tool 100, which can be used to trim or cut a pipeline 400 and can be used for the production of the pipeline 400. For example, in the production system of a blood purification device, medical hoses can be cut to meet the different requirements for the length of the hoses in different usage scenarios of the blood purification device. For example, in the trial production or experimental stage, the tube cutting tool 100 can also be used to cut the pipeline 400 to quickly obtain the required pipeline.

[0055] It should be noted that the "pipeline 400" described herein may be hollow pipe fittings such as medical hose, medical tube, PP tube, PVC tube, plastic tube, and plastic tube.

[0056] like Figures 1 to 3As shown, the pipe cutting tool 100 includes a base 1 and a cutter 2. The base 1 is provided with a pipe inlet hole 11 and a cutter avoidance groove 12 along a first direction 200 and a second direction 300, respectively. The second direction 300 intersects with the first direction 200. By way of example, in order to make the overall structure compact and convenient for manufacturing, the second direction 300 and the first direction 200 may be perpendicular, so that the plane where the cutter avoidance groove 12 is located may intersect the center hole line of the pipe inlet hole 11 perpendicularly. By way of example, if the base 1 is generally a rectangular parallelepiped structure, the first direction 200 may be the width direction of the base 1, and the second direction 300 may be the length direction of the base 1. Of course, the base 1 may actually be a structure of other shapes, which is not particularly limited here.

[0057] In an embodiment of the present application, the pipe inlet hole 11 passes through the base 1 along the first direction 200, that is, the pipe inlet hole 11 is a through hole for inserting the pipe 400 to be cut; the knife avoidance groove 12 is communicated with the pipe inlet hole 11, and is used to accommodate the cutter 2 so as to cut the pipe 400 to be cut inserted into the pipe inlet hole 11 inside the base 1.

[0058] Exemplarily, in the width direction of the base 1, a through hole is opened on the side of the base 1, so that it passes through the front and back sides of the base 1, so that the pipeline 400 to be cut passes from the front side of the base 1 to the back side of the base 1; in the height direction of the base 1, a knife avoidance groove 12 is opened on the top surface of the base 1 and in the middle position of the pipe inlet hole 11, and the bottom of the knife avoidance groove 12 is lower than the hole wall of the pipe inlet hole 11 (corresponding to the support surface 500 of the pipeline 400), so as to ensure that the knife avoidance groove 12 is connected with the pipe inlet hole 11, and the cutter 2 can cut the pipe 400 to be cut in the pipe inlet hole 11.

[0059] Also exemplarily, a plurality of inlet holes 11 may be provided, and the plurality of inlet holes 11 may be spaced and arranged side by side along the second direction 300. Among them, the inner diameters of the plurality of inlet holes 11 may be at least partially different, that is, the inlet holes 11 may have a plurality of inner diameter specifications, so as to adapt to the cutting of pipelines 400 of various inner diameters. For example, the inner diameters of the plurality of inlet holes 11 may be ф2.5mm, ф4.1mm, ф5.9mm, ф6.8mm, ф8.2mm, ф9.8mm, ф12mm, respectively, so as to facilitate the insertion of medical hoses with an outer diameter of or approximately the same value, so as to adapt to the most common hose specifications in the field of blood purification and meet most medical hose usage requirements.

[0060] Of course, the diameter of the pipe inlet hole 11 can be set to other sizes according to actual needs. In addition, the diameters of the pipe inlet holes 11 can be partially different, partially the same, or completely different, and these are not particularly limited here.

[0061] In the embodiments of the present application, Figures 1 to 3As shown, the cutter 2 slides along the second direction 300 relative to the base 1, and the cutter 2 includes a cutting portion 21, wherein the cutting portion 21 is accommodated in the cutter avoidance groove 12. When the cutter 2 slides along the second direction 300, the cutting portion 21 of the cutter 2 is in the cutter avoidance groove 12 and will slide along the cutter avoidance groove 12 relative to the base 1 together with the cutter 2, so as to cut off the pipe 400 in the pipe inlet hole 11 at the corresponding position of the cutter avoidance groove 12, thereby realizing the cutting of the pipe 400 to be cut.

[0062] In summary, compared with the prior art, the pipe cutting tool 100 has at least the following beneficial effects:

[0063] The pipe cutting tool 100 is provided with a knife avoidance groove 12 on the base 1, the extension direction (corresponding to the second direction 300) of which intersects with the extension direction (corresponding to the first direction 200) of the pipe inlet hole 11 and is communicated with the pipe inlet hole 11. The cutting portion 21 of the cutter 2 is accommodated in the knife avoidance groove 12, so that the cutting portion 21 of the cutter 2 is built into the base 1. The cutting of the pipe 400 to be cut in the pipe inlet hole 11 is achieved by manually sliding the cutting portion 21 in the knife avoidance groove 12 along the second direction 300. On the one hand, compared with manual pipe cutting, the pipe cutting efficiency can be greatly improved; on the other hand, it ensures that the cutter 2 will not touch the operator's hand during cutting, which is beneficial to reduce the risk of cutting fingers and improve the safety of use. That is, the pipe cutting tool 100 has high pipe cutting efficiency and safe and reliable cutting.

[0064] In order to make the technical personnel in this field better understand the present application scheme, the following will be combined with the attached Figures 1 to 9 , clearly and completely describe the technical solutions in the embodiments of the present application.

[0065] In some embodiments of the present application, Figure 2 and Figure 4 As shown, in the cutting state of the cutter 2, the cutting portion 21 of the cutter 2 and the supporting surface 500 where the pipeline 400 is located (specifically, the section of the lower hole wall of the pipe inlet hole 11) are set at an acute angle. Alternatively, the cutting portion 21 of the cutter 2 and the supporting surface 500 where the pipeline 400 is located are set at an angle α, wherein 20°≤α≤45° (that is, the above-mentioned acute angle range is 20° to 45°).

[0066] In this way, during the cutting process of the cutter 2, it can be ensured that the cutter 2 and the pipeline 400 always maintain a certain inclination angle, and the cutting portion 21 of the cutter 2 can cut into the pipeline 400 from an upper oblique angle. In this cutting method, the resistance F2 generated by the pipeline 400 to the cutting portion 21 is smaller than the resistance F1 encountered by the cutting portion 21 when directly cutting into the pipeline 400 from the side. That is, it is helpful to reduce the resistance encountered by the cutting portion 21 when cutting the pipeline 400, which not only saves labor, but also helps to reduce the blade wear of the cutting portion 21, prolongs the service life of the cutter 2, and also helps to ensure the smoothness of the cutting surface.

[0067] For example, Figure 4 As shown, if the cutting portion 21 of the cutter 2 is perpendicular to the pipeline 400, when the cutter 2 is pushed by a thrust F to cut the pipeline 400, according to the force balance principle, the pipeline 400 generates a resistance F1 = -F on the cutter 2 (the negative sign indicates that the direction of the resistance is opposite to the direction of the thrust).

[0068] Correspondingly, if the cutting portion 21 of the cutter 2 is set at an acute angle α with the supporting surface 500 where the pipeline 400 is located, when the cutter 2 is pushed by the thrust F to cut the pipeline 400, according to the force balance principle, the resistance F2 generated by the pipeline 400 on the cutter 2 is -Fsinα (the negative sign indicates that the direction of the resistance is opposite to the direction of the thrust).

[0069] In some embodiments of the present application, optionally, the angle range between the cutting portion 21 of the cutter 2 and the supporting surface 500 where the pipeline 400 is located is 25°≤α≤45°. In this case, the cutter 2 will save time and effort when cutting, have a longer service life, and the cutting surface will be smoother and flatter.

[0070] In some embodiments of the present application, in order to maintain the sharpness of the blade in the cutting portion 21 of the cutter 2 and extend the service life of the cutter 2, a frosted surface (not shown) is provided on the groove wall of the knife avoidance groove 12, wherein the frosted surface can contact the cutting portion 21, so that when the cutter 2 drives the cutting portion 21 to slide in the knife avoidance groove 12 along the second direction 300, the blade in the cutting portion 21 can realize the sharpening function by contacting with the frosted surface.

[0071] And / or, in some embodiments of the present application, such as Figures 1 to 3 As shown, the pipe cutting tool 100 also includes a protective baffle 3, wherein the protective baffle 3 is arranged on the base 1, and is used to prevent the cutting portion 21 of the cutter 2 from being exposed from the cutter avoidance groove 12. Exemplarily, if the cutter avoidance groove 12 extends from the left side to the right side of the base 1 along the second direction 300, that is, the cutter avoidance groove 12 passes through the base 1 in the length direction of the base 1, a protective baffle 3 can be respectively arranged on the inner side walls on the left and right sides of the base 1, so as to shield the side openings on both sides of the cutter avoidance groove 12 through the protective baffle 3, thereby preventing the cutter 2 from rushing out of the cutter avoidance groove 12 due to inertia when sliding and being exposed to the base 1, thereby reducing the risk of cutting fingers, and ensuring the necessary safety distance between the cutter 2 and the openings on both sides of the cutter avoidance groove 12.

[0072] Of course, in other embodiments, the knife avoidance groove 12 may not penetrate the base 1 in the second direction 300. For example, the length of the knife avoidance groove 12 in the second direction 300 is less than the length of the base 1, so that the knife avoidance groove 12 forms a blind end in the second direction 300. In this case, a protective baffle 3 may be provided to prevent the cutting portion 21 of the cutter 2 from wearing the blind end of the knife avoidance groove 12, thereby ensuring the smooth sliding of the cutter 2 and the fixity of the maximum sliding stroke of the cutter 2. The protective baffle 3 may also not be provided, and no special limitation is made here.

[0073] And / or, in some embodiments of the present application, when cutting the pipeline 400, in order to clearly check the state of the pipeline 400 in the pipeline inlet hole 11 of the base 1, the base 1 is set to a transparent structure. Exemplarily, the base 1 is made of a transparent material as a whole. Figure 2 , Figure 3 and Figure 5 As shown, the pipe cutting tool 100 further includes a perspective window 13, wherein the perspective window 13 is disposed on the top surface of the base 1. Understandably, the transparent base 1 or the perspective window 13 installed on the top surface of the base 1 can facilitate the inspection and judgment of the cutting length of the pipe 400, as well as the judgment of the flatness of the cutting surface of the pipe 400.

[0074] It should be noted that the base 1 may be provided with at least one of the above-mentioned frosted surface, protective baffle 3, and transparent window 13, which is not particularly limited here. Figures 1 to 3 As shown, in one embodiment of the present application, a frosted surface is provided on the groove wall of the knife avoidance groove 12, protective baffles 3 are provided on the left and right inner walls of the base 1, and a perspective window 13 is provided on the top surface of the base 1.

[0075] In some embodiments of the present application, in order to accurately measure the length of the pipe 400 cut, a length measuring member 4 is provided on the base 1, and the length measuring member 4 is provided with a measuring mark 41, wherein the measuring mark 41 is in the first direction 200, with the knife-avoiding groove 12 as a reference, and is used to measure the cutting length of the pipe 400. It can be understood that since the pipe 400 is inserted into the corresponding pipe inlet hole 11 along the first direction 200, and extends from the pipe inlet side of the pipe inlet hole 11 to the pipe outlet side, and the pipe 400 to be cut is cut from the position corresponding to the knife-avoiding groove 12, the target pipe has the position corresponding to the knife-avoiding groove 12 as the head end (or the tail end), and the end extending from the pipe outlet side of the pipe inlet hole 11 as the tail end (or the head end), so the length measuring member 4 is provided with the measuring mark 41 in the extension direction of the pipe inlet hole 11, that is, the extension direction of the pipe 400 (corresponding to the first direction 200), and with the knife-avoiding groove 12 as a reference, the cutting length of the pipe 400 can be measured.

[0076] In order to measure the cutting length of the pipeline 400 by the length measuring member 4, in a specific embodiment, as Figure 3 , Figure 5 and Figure 6 As shown, the top surface of the base 1 is provided with a measurement mark 41. Exemplarily, the measurement mark 41 is a measurement scale, wherein the 0 scale is aligned with the edge of the knife avoidance groove 12, and the entire measurement scale is marked along the first direction 200. Alternatively, the top surface of the base 1 is provided with not only the measurement mark 41 but also a magnifying glass (not shown), wherein the magnifying glass covers the measurement mark 41 for convenient reading of the scale on the measurement mark 41.

[0077] And / or, in another specific embodiment, Figure 3 , Figure 5 and Figure 6 As shown, in the case where a plurality of pipe inlet holes 11 are provided and the sizes of the plurality of pipe inlet holes 11 are different, a retractable device 42 with a measuring mark 41 is provided on the pipe outlet side of at least one pipe inlet hole 11. It can be understood that the 0 scale of the measuring mark 41 on the retractable device 42 is still aligned with the edge of the knife avoidance groove 12, and the scales of the entire measuring mark 41 are marked in sequence along the first direction 200. When in use, the retractable device 42 is stretched to the target length, and the pipeline 400 to be cut is extended from the pipe outlet side of the corresponding pipe inlet hole 11 to be aligned with the end of the retractable device 42, so that the pipeline 400 of the target length can be quickly and accurately cut.

[0078] For example, the retractable device 42 can be correspondingly arranged at the outlet side of the inlet hole 11 with an inner diameter of ф2.5 mm, so as to measure the cutting length of the pipeline 400 with an outer diameter of ф2.5 mm. Of course, in fact, the retractable device 42 can also be arranged at the outlet side of the inlet hole 11 with other inner diameters, and multiple retractable devices 42 can also be arranged at the outlet side of the corresponding inlet hole 11, which is not particularly limited here and can be determined according to actual needs.

[0079] In addition, the retractable device 42 can be fixedly mounted on the base 1 or detachably mounted on the base 1 so as to be installed and used as required, which is not particularly limited herein.

[0080] It should be noted that, in one embodiment of the present application, Figure 3 , Figure 5 and Figure 6 As shown, the top surface of the base 1 is provided with a measuring mark 41, and one of the pipe inlet holes 11 is also provided with a retractable device 42. Of course, in other embodiments, the measuring mark 41 and the retractable device 42 can be used alternatively, as long as the cutting length of the pipe 400 to be cut can be accurately measured.

[0081] In some embodiments of the present application, in order to achieve the sliding of the cutter 2 along the second direction 300, in a specific embodiment, the pipe cutting tool 100 also includes a tool holder 5, wherein the tool holder 5 is provided with the above-mentioned cutter 2, and the tool holder 5 is slidably arranged on the base 1 along the second direction 300 to drive the cutter 2 to slide along the second direction 300, and drive the cutting portion 21 of the cutter 2 to slide in the tool avoidance groove 12 along the second direction 300 (specifically, it can be the left and right direction or the length direction of the base 1).

[0082] It should be noted that, in this specific embodiment, the tool holder 5 can achieve a sliding connection with the base 1 through the concave-convex cooperation of the slider and the sliding groove, or can slide relative to the base 1 by a sliding member slidably arranged on the base 1, or can slide through other suitable existing structures or newly created structures. In short, it is sufficient that the tool holder 5 can be slidably arranged relative to the base 1, and no special limitation is made here.

[0083] Or, in another embodiment, Figures 1 to 3 , Figures 7 to 9 As shown, in order to simplify the structure of the pipe cutting tool 100, the pipe cutting tool 100 also includes a guide rail 6 and a tool holder 5, wherein the guide rail 6 is arranged on the base 1 along the second direction 300, the tool holder 5 is slidably arranged on the guide rail 6, and is provided with a cutting knife 2.

[0084] Exemplarily, in a direction perpendicular to the center line of the pipe inlet hole 11 (corresponding to the second direction 300), the guide rail 6 is disposed on the top surface of the base 1, and the opposite ends of the guide rail 6 extend to the left and right edges of the base 1. Also exemplarily, a first mounting hole 62 is provided on the guide rail 6, and correspondingly, a first threaded hole (not shown) is provided on the base 1, and a screw (not shown) can sequentially pass through the first mounting hole 62 and the first threaded hole and be threadedly connected to the base 1, so as to detachably connect the guide rail 6 to the top surface of the base 1.

[0085] Of course, in other embodiments, the guide rail 6 may also be fixedly connected or detachably connected to the base 1 through other existing or newly created structures, which will not be elaborated herein.

[0086] In some embodiments of the present application, Figure 8 and Fig. 9 As shown, in order to install the cutter 2 on the tool holder 5, the cutter 2 also includes a cutter head 22, and a mounting groove 511 is provided in the tool holder 5. The cutter head 22 is installed in the mounting groove 511, and the cutting portion 21 is exposed in the mounting groove 511 and built in the avoidance groove. It can be understood that the mounting groove 511 is mainly used to place the cutter head 22 of the cutter 2, such as the non-cutting portion of the cutter 2, so as to ensure that the cutter 2 as a whole will not be exposed in the pipe cutting tool 100, so as to avoid the cutter 2 from hitting the operator's hand during use, which is conducive to reducing the probability of safety accidents.

[0087] or Figure 8 and Fig. 9 As shown, a mounting groove 511 is provided in the tool holder 5, and the mounting groove 511 is set at an acute angle or an angle α with the supporting surface 500 where the pipeline 400 is located, so that the cutter 2 can be installed on the tool holder 5 at an angle, which is beneficial to reduce the resistance of the cutter 2 when cutting the pipeline 400, and also helps to ensure the smoothness of the cutting surface.

[0088] And / or, in some embodiments of the present application, such as Figures 1 to 3 , Figures 7 to 9 As shown, in order to realize the installation of the cutter 2 on the knife holder 5 and ensure that the knife holder 5 is slidably arranged on the base 1 along the second direction 300, the knife holder 5 includes a knife seat 51, a mounting clamp 53 and a sliding chassis 52, wherein the side of the knife seat 51 is provided with the above-mentioned mounting groove 511, and the mounting clamp 53 is detachably installed on the knife seat 51 at a position corresponding to the mounting groove 511, so as to detachably clamp the cutter 2 on the knife holder 5. It can be understood that the cutter 2 is located between the mounting clamp 53 and the knife seat 51, and is pressed and fixed on the knife seat 51 by the mounting clamp 53.

[0089] For example, Fig. 9 As shown, a second mounting hole 531 is provided on the mounting clip 53, and correspondingly, a second threaded hole 512 is provided in the mounting groove 511 of the knife seat 51, and a through hole 23 is provided on the cutter 2, wherein a screw (not shown) can pass through the second mounting hole 531, the through hole 23 and the second threaded hole 512 in sequence, so as to fix the cutter 2 on the knife seat 51 at the position corresponding to the mounting groove 511 by clamping the mounting clip 53.

[0090] Of course, in other embodiments, the installation of the cutter 2 may be achieved by other existing structures or newly created structures, such as bonding or riveting the cutter head 22 of the cutter 2 into the installation groove 511 of the cutter seat 51, which will not be elaborated here.

[0091] In addition, Figure 1 , Figure 2 , Figures 7 to 9 As shown, the sliding chassis 52 is arranged on the side of the tool holder 51 facing the tube inlet hole 11, such as the bottom of the tool holder 51, and the sliding chassis 52 is matched with the guide rail 6 to be slidably connected to the guide rail 6 along the second direction 300, thereby realizing the sliding connection between the tool holder 5 and the guide rail 6.

[0092] For example, to achieve a fixed connection between the sliding chassis 52 and the knife seat 51, as shown in FIG. Fig. 9As shown, the sliding chassis 52 is provided with a third mounting hole 522, and correspondingly, the knife holder 51 is provided with a third threaded hole (not shown), wherein the screw (not shown) sequentially passes through the third mounting hole 522 and the third threaded hole to detachably connect the sliding chassis 52 to the knife holder 51. Of course, in other embodiments, the installation of the sliding chassis 52 can also be achieved through other existing structures or newly created structures, such as welding, bonding, riveting, or snap-fitting the sliding chassis 52 to the bottom of the knife holder 51, which will not be described in detail here.

[0093] In some specific embodiments, in order to achieve the concave-convex fit between the sliding chassis 52 and the guide rail 6 , one of the guide rail 6 and the sliding chassis 52 is provided with a sliding groove 61 , and the other is provided with a convex strip 521 that is concave-convexly matched with the sliding groove 61 .

[0094] For example, Figures 1 to 3 , Figures 7 to 9 As shown, the slide groove 61 is provided on the guide rail 6, and the convex strip 521 is provided on the sliding chassis 52. Optionally, the slide groove 61 is in a "]" shape, and the convex strip 521 and the "]"-shaped slide groove 61 are adaptively matched in a concave-convex manner, so that the tool holder 5 can slide freely along the slide groove 61 of the guide rail 6 along the second direction 300. Of course, in other embodiments, the slide groove 61 can also be in other shapes, for example, the slide groove 61 is a dovetail groove. In short, the shape and size of the slide groove 61 and the convex strip 521 are adapted.

[0095] And / or, in some specific embodiments, in order to make the overall structure of the pipe cutting tool 100 more compact, the sliding chassis 52 is detachably recessed on the bottom surface of the knife seat 51. For example, a groove 513 is recessed at the bottom of the knife seat 51, and the sliding chassis 52 is built into the groove 513, thereby ensuring that the overall height of the knife holder 5 is relatively low, which is conducive to reducing the occupied space of the pipe cutting tool 100.

[0096] In summary, the use process of the pipe cutting tool 100 can be roughly as follows:

[0097] 1. First, insert the pipe 400 to be cut from the corresponding pipe inlet hole 11, and pass it through the base 1 to the pipe outlet side of the pipe inlet hole 11, so that the length measuring member 4 on the base 1 can accurately measure the cutting length of the pipe 400 according to the specific situation.

[0098] 2. Then, the tool holder 5 is manually driven to slide along the guide rail 6 along the second direction 300 (specifically, the left-right direction or the length direction of the base 1), so that the pipe 400 in the pipe inlet hole 11 can be cut at the position corresponding to the knife avoidance groove 12 by the cutter 2 installed on the tool holder 5, and the pipe of the target length can be obtained.

[0099] In general, the pipe cutting tool 100 of the present application not only has high pipe cutting efficiency and high safety, but also has a simple and compact overall structure, a small size, and a light weight (for example, as light as 0.8kg to 1.5kg), making it easy to carry.

[0100] Based on the above-mentioned tube cutting tool 100 , an embodiment of the present application further provides a medical device production system, wherein the medical device production system includes the above-mentioned tube cutting tool 100 .

[0101] In summary, compared with the prior art, the medical device production system has at least the following beneficial effects: the medical device production system, by adopting the above-mentioned tube cutting tool 100, is conducive to improving the tube cutting efficiency and the safety of use, thereby helping to improve the production efficiency and safety and reliability of the medical device production system.

[0102] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A pipe cutting tool, characterized in that: The pipe cutting tool comprises: The base is provided with a pipe inlet hole for inserting a pipe along a first direction and a knife avoidance groove along a second direction; the knife avoidance groove is communicated with the pipe inlet hole, and the second direction intersects with the first direction; A cutter slides relative to the base along the second direction; the cutter comprises a cutting portion accommodated in the cutter avoidance groove; When the cutter slides, the cutting portion slides along the cutter avoidance groove to cut off the pipeline in the pipe inlet hole at a position corresponding to the cutter avoidance groove.

2. The pipe cutting tool according to claim 1, characterized in that: In the cutting state, the cutting portion of the cutter is arranged at an acute angle to the supporting surface where the pipeline is located; Alternatively, the cutting portion of the cutter is arranged at an angle α to the supporting surface where the pipeline is located, wherein 20°≤α≤45°.

3. The pipe cutting tool according to claim 2, characterized in that: The angle between the cutting portion of the cutter and the supporting surface where the pipeline is located is in the range of 25°≤α≤45°.

4. The pipe cutting tool according to claim 1, characterized in that: The groove wall of the knife avoidance groove is provided with a frosted surface in contact with the cutting part; And / or, the pipe cutting tool further comprises a protective baffle, which is arranged on the base and is used to prevent the cutting portion of the cutter from being exposed from the cutter avoidance groove; And / or, the base is configured as a transparent structure, or the pipe cutting tool further includes a perspective window, and the perspective window is disposed on the top surface of the base so as to observe the status of the pipeline in the pipe inlet hole.

5. The pipe cutting tool according to claim 1, characterized in that: A length measuring piece is arranged on the base; the length measuring piece is provided with a measuring mark, and the measuring mark is in the first direction and is based on the knife avoidance groove and is used to measure the cutting length of the pipeline.

6. The pipe cutting tool according to claim 5, characterized in that: The top surface of the base is provided with the measurement mark; or, the top surface of the base is provided with the measurement mark and a magnifying glass, and the magnifying glass covers the measurement mark; And / or, a plurality of the pipe inlet holes are provided, and the sizes of the plurality of the pipe inlet holes are different; a retractable device with the measurement mark is provided on the pipe outlet side of at least one of the pipe inlet holes.

7. The pipe cutting tool according to any one of claims 1 to 6, characterized in that: The pipe cutting tool further comprises a tool holder, the tool holder is provided with the cutting knife and is slidably arranged on the base along the second direction; Alternatively, the pipe cutting tool further comprises a guide rail and a tool holder, wherein the guide rail is arranged on the base along the second direction, and the tool holder is slidably arranged on the guide rail and is provided with the cutting knife.

8. The pipe cutting tool according to claim 7, characterized in that: The tool holder is provided with a mounting groove, or a mounting groove which is arranged at an acute angle or at an angle α with the supporting surface where the pipeline is located; The cutter further comprises a cutter head, the cutter head is mounted in the mounting slot, and the cutting portion is exposed in the mounting slot; And / or, the tool holder comprises: The knife seat has the mounting groove on its side; A sliding chassis, arranged on a side of the knife seat facing the pipe inlet hole, and matched with the guide rail in a concave-convex manner to be slidably connected to the guide rail along a second direction; The mounting clip is detachably mounted on the knife seat at a position corresponding to the mounting groove, so as to detachably clamp the cutter on the knife holder.

9. The pipe cutting tool according to claim 8, characterized in that: One of the guide rail and the sliding chassis is provided with a slide groove, and the other is provided with a convex strip that matches the slide groove concavely and convexly; And / or, the sliding chassis is detachably recessed in the bottom surface of the knife seat.

10. A medical device production system, characterized in that: The medical device production system comprises the tube cutting tool according to any one of claims 1 to 9.

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