Pipe inserting device

Abstract

The utility model discloses a pipe inserting device. The pipe inserting device comprises a base; the mounting seat is connected with one end of the base, the mounting seat is arranged between a mold core station and a guide pipe station, the first positioning assembly and the second positioning assembly are arranged on the mounting seat, a first through hole is formed in the first positioning assembly, the inner diameter of the first through hole is matched with the outer diameter of a mold core, and the inner diameter of the second through hole is matched with the outer diameter of the mold core. A second through hole is formed in the second positioning assembly, the second through hole and the first through hole are concentrically arranged, the minimum hole diameter of the second through hole is matched with the outer diameter of a guide pipe, and the minimum hole diameter of the second through hole is larger than the minimum hole diameter of the first through hole; the catheter clamping assembly is arranged on the base and used for clamping a catheter; the first moving assembly is used for driving the base to move in the first horizontal direction. Compared with the prior art, the pipe inserting device can improve the pipe inserting efficiency and improve the overall production efficiency.

Description

Technical Field

[0001] This application relates to the field of medical device manufacturing technology, and more specifically, to an intubation device. Background Technology

[0002] Currently, angiography catheters in medical devices are widely used because they can smoothly introduce contrast agents into blood vessels to produce an angiographic effect while effectively avoiding damage to blood vessels.

[0003] Angiography catheters are long, polymeric catheters and are key instruments for percutaneous angiography, belonging to the category of diagnostic catheters. Their main function is to smoothly introduce contrast agents into the blood vessels to produce an imaging effect. Therefore, the distal end of the angiography catheter needs to have excellent shape memory, flexibility, and X-ray detectability. Current angiography catheters include both the catheter and the connector; the catheter has good flexibility to effectively avoid damaging blood vessels.

[0004] Currently, the production process of contrast catheters involves assembling the catheter with the mold core in an injection mold on production equipment, followed by injection molding in an injection molding machine. Existing technology often involves manually inserting each catheter one by one into the mold core of the injection molding machine. However, this insertion method is slow and inefficient, thus affecting production efficiency.

[0005] Therefore, there is an urgent need for an intubation device that can improve intubation efficiency and overall production efficiency. Utility Model Content

[0006] To address the aforementioned technical problems, this application provides a cannulation device that can improve cannulation efficiency and overall production efficiency.

[0007] The technical solution provided in this application is as follows:

[0008] An intubation device, comprising:

[0009] Base;

[0010] A mounting base is connected to one end of the base, and the mounting base is disposed between the mold core station and the guide tube station.

[0011] A first positioning component and a second positioning component are disposed on the mounting base, wherein a first through hole is formed in the first positioning component, the inner diameter of the first through hole is adapted to the outer diameter of the mold core, a second through hole is formed in the second positioning component, the second through hole is concentrically arranged with the first through hole, the minimum diameter of the second through hole is adapted to the outer diameter of the guide tube, and the minimum diameter of the second through hole is greater than the minimum diameter of the first through hole.

[0012] A catheter clamping assembly disposed on the base for clamping the catheter;

[0013] A first moving component for driving the base to move along a first horizontal direction.

[0014] Preferably, the diameter of the first through hole gradually decreases in the direction away from the mold core station, while the diameter of the second through hole gradually increases.

[0015] Preferably, at least two sets of the first positioning components are provided, and the first positioning components are spaced apart along the second horizontal direction;

[0016] Wherein, the second horizontal direction is perpendicular to the first horizontal direction, and the first positioning component, the second positioning component, and the catheter clamping component are respectively provided.

[0017] Preferably, it further includes:

[0018] A second moving component for driving the base to move along a second horizontal direction.

[0019] Preferably, it further includes:

[0020] A third moving component for driving the base to move vertically;

[0021] The first horizontal direction, the second horizontal direction, and the vertical direction are set perpendicularly.

[0022] Preferably, it further includes:

[0023] A gathering assembly is disposed at the end of the base away from the mounting seat, the gathering assembly being used to gather the tail ends of multiple conduits.

[0024] in,

[0025] The aggregation component includes:

[0026] A first and second convergence rods are spaced apart along a second horizontal direction;

[0027] The converging drive is used to move the first converging rod and the second converging rod in a direction that moves closer to or further away from each other.

[0028] Preferably, the mounting base and the base are fixedly connected; or,

[0029] The mounting base and the base are specifically detachably connected.

[0030] Preferably, the base includes:

[0031] Support platform;

[0032] A first positioning platform and a second positioning platform are connected to the support platform. The first positioning platform is used to support the first positioning component, and the second positioning platform is used to support the second positioning component.

[0033] Positioning rods are provided on both sides of the support platform, and the positioning rods are used to abut against both sides of the mounting base for positioning.

[0034] Preferably, the first positioning component includes a first positioning block, a second positioning block, and a first driving component. The first driving component is used to drive the first positioning block and the second positioning block to move simultaneously in a direction that approaches or moves away from each other, and a first through hole is formed between the first positioning block and the second positioning block.

[0035] The second positioning component includes a third positioning block, a fourth positioning block, and a second driving component. The second driving component is used to drive the third positioning block and the fourth positioning block to move simultaneously in directions that are closer to each other and further away from each other. A second through hole is formed between the third positioning block and the fourth positioning block.

[0036] Preferably, the first driving component includes:

[0037] A first arc-shaped cam is disposed at the bottom of the first positioning block and the second positioning block;

[0038] A first positioning surface is disposed on the top of the first positioning platform and used in conjunction with the first arc-shaped cam, and a first angle is formed between the two first positioning surfaces;

[0039] A first driving component for moving the first positioning platform vertically;

[0040] The second driving component includes:

[0041] A second arc-shaped cam is disposed at the bottom of the third positioning block and the fourth positioning block;

[0042] A second positioning surface is set on the top of the second positioning platform and used in conjunction with the second arc-shaped cam, and a second angle is formed between the two second positioning surfaces;

[0043] A second driving component for moving the second positioning platform vertically;

[0044] The projection of the center lines of the two first positioning surfaces onto the second positioning platform coincides with the center lines of the two second positioning surfaces.

[0045] The cannulation device provided by this utility model firstly includes a base, a mounting base, a first positioning component, and a second positioning component. The mounting base is connected to one end of the base and is positioned between the mold core station and the guide tube station. The first and second positioning components are mounted on the mounting base. The first positioning component has a first through hole, the inner diameter of which matches the outer diameter of the mold core on the mold core, thus positioning the mold core. The second positioning component has a second through hole, the minimum diameter of which matches the outer diameter of the guide tube, thus positioning the guide tube. The minimum diameter of the second through hole is larger than the minimum diameter of the first through hole, allowing positioning of the guide tube's end face through the end face of the first positioning component. The first and second through holes are concentrically positioned. During cannulation, the mold core is positioned through the first through hole, and the guide tube is positioned through the second through hole, ensuring concentricity between the mold core and the guide tube for easy cannulation. Secondly, a conduit clamping assembly and a first moving assembly are also provided. The first moving assembly is used to move the mounting base towards the conduit station until the conduit is inserted into the second through hole and positioned by the end face of the first through hole. The conduit is then clamped by the conduit assembly, and the first moving assembly drags the base, mounting base, and conduit towards the mold core, so that the mold core is inserted into the conduit, thereby realizing the conduit insertion process. Therefore, compared with the prior art, the conduit insertion device in this embodiment of the present invention eliminates the need for manual insertion of the conduit into the mold core, thereby improving conduit insertion efficiency and overall production efficiency. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of a first structure of the cannulation device provided in an embodiment of the present utility model;

[0048] Figure 2 This is a schematic diagram of a second structure of the cannulation device provided in an embodiment of the present utility model;

[0049] Figure 3 A partial structural schematic diagram of the cannulation device provided in an embodiment of this utility model;

[0050] Figure 4 A schematic diagram of the structure of the aggregation component provided in this embodiment of the utility model;

[0051] Figure 5A schematic diagram of the structure of the first positioning component and the second positioning component provided in an embodiment of the present utility model;

[0052] Figure 6 A schematic diagram of the structure of the second positioning component provided in an embodiment of this utility model;

[0053] Figure 7 One embodiment of the base provided in this utility model;

[0054] Figure 8 This is a partial schematic diagram of the base provided in an embodiment of the present utility model.

[0055] Reference numerals: 1. Base; 3. First positioning component; 4. Second positioning component; 5. Guide clamping component; 6. First moving component; 7. Second moving component; 8. Third moving component; 9. Closing component; 21. Support platform; 22. First positioning platform; 23. Second positioning platform; 24. Positioning rod; 31. First through hole; 32. First positioning block; 33. Second positioning block; 34. First arc-shaped cam; 35. First positioning surface; 36. First driving component; 41. Second through hole; 42. Third positioning block; 43. Fourth positioning block; 44. Second arc-shaped cam; 45. Second positioning surface; 46. Second driving component; 91. First closing rod; 92. Second closing rod; 93. Closing driving component. Detailed Implementation

[0056] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0057] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0058] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0060] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0061] The embodiments of this utility model are written in a progressive manner.

[0062] like Figures 1 to 8 As shown, this utility model embodiment provides a cannulation device, including: a base 1; a mounting seat connected to one end of the base 1, the mounting seat being disposed between the mold core station and the conduit station; a first positioning component 3 and a second positioning component 4 disposed on the mounting seat, wherein the first positioning component 3 forms a first through hole 31, the inner diameter of the first through hole 31 is adapted to the outer diameter of the mold core, the second positioning component 4 forms a second through hole 41, the second through hole 41 is concentrically disposed with the first through hole 31, the minimum diameter of the second through hole 41 is adapted to the outer diameter of the conduit, the minimum diameter of the second through hole 41 is greater than the minimum diameter of the first through hole 31, a conduit clamping component 5 disposed on the mounting seat for clamping the conduit; and a first moving component 6 for driving the base 1 to move along a horizontal first direction.

[0063] It should be noted that the mold core station in this application is used to place and position the mold core, the mold core is located on the side of the mold core close to the first positioning component 3, and the guide tube station is used to place and position the guide tube, the guide tube station is located on the side of the guide tube clamping component 5 away from the second positioning component 4.

[0064] In existing technologies, tubes are often inserted one by one manually into the mold core of the injection molding machine. However, this method is slow and inefficient, which affects production efficiency.

[0065] To replace the manual cannulation method in the prior art and improve work efficiency, this utility model provides a cannulation device. Firstly, it includes a base 1, a mounting base, a first positioning component 3, and a second positioning component 4. The mounting base is connected to one end of the base 1 and is positioned between the mold core station and the guide tube station. The first positioning component 3 and the second positioning component 4 are mounted on the mounting base. The first positioning component 3 has a first through hole 31 formed within it. The inner diameter of the first through hole 31 matches the outer diameter of the mold core on the mold core. The mold core is positioned through the first through hole 31. The core is positioned by a second positioning component 4, which has a second through hole 41. The minimum diameter of the second through hole 41 is adapted to the outer diameter of the conduit. The conduit is positioned through the second through hole 41. The minimum diameter of the second through hole 41 is larger than the minimum diameter of the first through hole 31. Thus, the end face of the first positioning component 3 can be used to position the end face of the conduit. The first through hole 31 and the second through hole 41 are concentrically set. During the insertion process, the core is positioned through the first through hole 31, and the conduit is positioned through the second through hole 41, so that the core and the conduit are concentric, which facilitates the insertion. Next, a conduit clamping component 5 and a first moving component 6 are also provided. The first moving component 6 is used to drive the base 1 to move in the direction of the conduit station along the first horizontal direction. When the conduit is inserted into the second through hole and positioned by the end face of the first through hole, the conduit is clamped by the conduit component. The first moving component 6 drags the mounting base, the base 1, and the conduit towards the core station, so that the core passes through the first through hole into the conduit, thereby realizing the insertion process. Therefore, compared with the prior art, the cannulation device in this embodiment of the utility model does not require manual insertion of the cannula into the mold core, which can improve the cannulation efficiency and the overall production efficiency.

[0066] During insertion, the axial position of the mandrel or conduit may deviate. To address this, a first through-hole 31 and a second through-hole 41 are provided. The second through-hole 41 positions the conduit circumferentially, while the first through-hole 31 positions the mandrel circumferentially. Since the first and second through-holes 31 are concentric, the mandrel can be smoothly inserted into the conduit. Furthermore, to ensure consistent insertion depth of the mandrel each time, the minimum outer diameter of the first through-hole 31 is smaller than the minimum outer diameter of the second through-hole 41. The end face of the first positioning component 3 near the second positioning component 4 positions the end face of the conduit, while the end face of the first positioning component 3 away from the second positioning component 4 positions the mandrel. This ensures consistent insertion depth of the mandrel into the conduit each time, resulting in higher insertion quality. During the insertion process, the first moving component 6 drives the base 1 to move along the first horizontal direction toward the conduit station, the conduit is inserted into the second through hole 41, and the end face of the conduit is positioned by the first positioning component 3. The conduit is clamped by the conduit clamping component 5, the first moving component 6 drives the base 1 to move toward the mold core station, and the mold core is inserted into the conduit along the first through hole 31, thereby realizing the insertion process.

[0067] In the above structure, the placement of the conduit and the mold core may be offset. To solve this technical problem, in the insertion device of this utility model embodiment, the diameter of the first through hole 31 gradually decreases and the diameter of the second through hole 41 gradually increases in the direction away from the mold core station. As the mounting base moves with the base 1, it guides the conduit through the second through hole 41 so that the conduit and the second through hole 41 are concentrically set. Then, the conduit is clamped and fixed by the conduit clamping assembly 5. As the mounting base moves with the base 1 toward the mold core station, it positions the mold core through the first through hole 31. The concentric setting of the first through hole 31 and the second through hole 41 facilitates the insertion of the mold core into the conduit, thereby completing the insertion action.

[0068] More specifically, in the embodiments of this utility model, both the first through hole 31 and the second through hole 41 are tapered holes.

[0069] In the above structure, as a preferred embodiment, in order to increase the efficiency of cannulation, the first positioning component 3 in this embodiment of the present invention is provided in at least two sets. The first positioning component 3 is arranged at intervals along the second horizontal direction, and the first positioning component 3, the second positioning component 4 and the catheter clamping component 5 are arranged in a one-to-one correspondence.

[0070] By setting at least two sets of first positioning components 3, second positioning components 4, and catheter clamping components 5, multiple catheters can be inserted simultaneously, resulting in higher efficiency.

[0071] In this embodiment of the invention, the first positioning component 3 on the mounting base is provided in two sets.

[0072] In the above structure, as a preferred embodiment, the mold core is often provided with multiple mold cores, and the mold cores are spaced apart along the second horizontal direction of the mold core. After the guide tube is installed on the mold core, the mold core and the guide tube are placed into the injection molding machine. The number of mold cores is preferably N times the number of the first positioning components 3, where N is a natural number. When N is greater than or equal to 2, in order to facilitate tube insertion, the tube insertion device in this embodiment of the present invention also includes a second moving component 7. The second moving component 7 is used to drive the base 1 to move along the second horizontal direction. By driving the base 1 and the first positioning component 3 to move to a preset position through the second moving component 7, the tube insertion of other mold cores is completed.

[0073] In the above structure, as one embodiment, the intubation device in this utility model embodiment further includes a third moving component 8. The third moving component 8 is used to drive the base 1 to move in the vertical direction. The first horizontal direction, the second horizontal direction, and the vertical direction are set perpendicularly. After the intubation action is completed, the third moving component 8 drives the base 1 to descend, so as to avoid interference with subsequent actions.

[0074] In the above structure, this application does not further limit the specific structure of the first moving component 6, the second moving component 7 and the third moving component 8.

[0075] In the above structure, a mold core is provided with multiple mold cores, and each mold core is correspondingly set with a guide tube. Before being fed into the injection molding machine, the mold core and the guide tube need to be transferred. In order to facilitate the transfer of the guide tube by the robot, as one embodiment, the insertion device of this utility model also includes a gathering component 9. The gathering component 9 is used to gather the tail of the guide tube. More specifically, the gathering component 9 includes a first gathering rod 91, a second gathering rod 92, and a gathering drive component 93. The first gathering rod 91 and the second gathering rod 92 are spaced apart along a second horizontal direction. The first gathering rod 91 and the second gathering rod 92 are located on both sides of the multiple guide tubes. The gathering drive component 93 is used to drive the first gathering rod 91 and the second gathering rod 92 to move towards each other. The multiple guide tubes are gathered by the first gathering rod 91 and the second gathering rod 92 for easy transfer. When insertion is required, the gathering drive component 93 drives the first gathering rod 91 and the second gathering rod 92 to move away from each other for easy placement of the guide tube.

[0076] In the above structure, the mounting base and the base 1 are specifically fixedly connected in this embodiment of the present invention. To accommodate insertion of conduits and mold cores of different sizes, as another preferred embodiment, the mounting base and the base 1 are specifically detachably connected.

[0077] This utility model embodiment provides a specific method for detachable connection between the mounting base and the base 1. Specifically, the base 1 in this utility model embodiment includes a support platform 21, a first positioning platform 22, a second positioning platform 23, and a positioning rod 24. The first positioning platform 22 and the second positioning platform 23 are connected to the support platform 21. The first positioning platform 22 is used to support the first positioning component 3, and the second positioning platform 23 is used to support the second positioning component 4. The positioning rod 24 is disposed on both sides of the support platform 21. The mounting base is positioned by abutting against both sides of the mounting base.

[0078] In the above structure, as one specific implementation, the positioning rod 24 in this utility model embodiment is specifically any one of a cylinder, a hydraulic cylinder, or a linear motor.

[0079] In the above structure, as one specific implementation, the first positioning component 3 in this embodiment of the present invention includes a first positioning block 32, a second positioning block 33, and a first driving component. The first driving component is used to drive the first positioning block 32 and the second positioning block 33 to move simultaneously toward or away from each other. A first through hole 31 is formed between the first positioning block 32 and the second positioning block 33. Specifically, a first groove is provided on the inner side of both the first positioning block 32 and the second positioning block 33, and a first through hole 31 is formed between the two first grooves. The second positioning component 4 includes a third positioning block 42, a fourth positioning block 43, and a second driving component. The second driving component is used to drive the third positioning block 42 and the fourth positioning block 43 to move simultaneously toward or away from each other. A second through hole 41 is formed between the third positioning block 42 and the fourth positioning block 43. Specifically, a second groove is provided on the inner side of both the third positioning block 42 and the fourth positioning block 43, and a second through hole 41 is formed between the two second grooves.

[0080] In the above structure, as one specific implementation, the first driving component in this utility model embodiment includes: a first arc-shaped cam 34 disposed at the bottom of the first positioning block 32 and the second positioning block 33; a first positioning surface 35 disposed at the top of the first positioning block 32 and cooperating with the first arc-shaped cam 34, with a first angle formed between the two first positioning surfaces 35; and a first driving member 36 for driving the first positioning platform 22 to move vertically. The second driving component includes: a second arc-shaped cam 44 disposed at the bottom of the third positioning block 42 and the fourth positioning block 43; a second positioning surface 45 disposed at the top of the second positioning platform 23 and cooperating with the second arc-shaped cam 44, with a second angle formed between the two second positioning surfaces 45; and a second driving member 46 for driving the second positioning platform 23 to move vertically. The projection of the center line of the two first positioning surfaces 35 onto the second positioning platform 23 coincides with the center line of the two second positioning surfaces 45.

[0081] Specifically, the first driving member 36 drives the first positioning stage 22 to move vertically, and the first arc-shaped cam 34 engages with the first positioning surface 35, thereby opening and closing the first positioning block 32 and the second positioning block 33. The second driving member 46 drives the second positioning stage 23 to move vertically, and the second arc-shaped cam 44 engages with the second positioning surface 45, thereby opening and closing the third positioning block 42 and the fourth positioning block 43.

[0082] Furthermore, the first positioning platform 22 and the second positioning platform 23 are arranged in parallel, and the projection of the center line of the two first positioning surfaces 35 onto the second positioning platform 23 coincides with the center line of the two second positioning surfaces 45, thereby ensuring that the first through hole 31 and the second through hole 41 are concentric.

[0083] Specifically, in this embodiment of the invention, both the first angle and the second angle are acute angles. When the first driving member 36 moves the first positioning platform 22 downward, the first positioning platform 22 and the second positioning platform 23 open; when the first driving member 36 moves the first positioning platform 22 upward, the first positioning platform 22 and the second positioning platform 23 close. Similarly, when the second driving member 46 moves the second positioning platform 23 downward, the third positioning platform and the fourth positioning platform open; when the second driving member 46 moves the second positioning platform 23 upward, the third positioning platform and the fourth positioning platform close.

[0084] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cannulation device, characterized in that, include: Base (1); A mounting base connected to one end of the base (1), the mounting base being disposed between the mold core station and the guide tube station. The first positioning component (3) and the second positioning component (4) are provided on the mounting base. The first positioning component (3) forms a first through hole (31), the inner diameter of which is adapted to the outer diameter of the mold core. The second positioning component forms a second through hole (41), which is concentrically arranged with the first through hole (31). The minimum diameter of the second through hole (41) is adapted to the outer diameter of the guide tube. The minimum diameter of the second through hole (41) is greater than the minimum diameter of the first through hole (31). A catheter clamping assembly (5) is provided on the base (1) for clamping the catheter. A first moving component (6) is used to move the base (1) along a first horizontal direction.

2. The cannulation device according to claim 1, characterized in that, In the direction away from the mold core station, the diameter of the first through hole (31) gradually decreases, and the diameter of the second through hole (41) gradually increases.

3. The cannulation device according to claim 2, characterized in that, The first positioning component (3) is provided in at least two sets, and the first positioning component (3) is provided at intervals along the second horizontal direction; Wherein, the second horizontal direction is perpendicular to the first horizontal direction, and the first positioning component (3), the second positioning component (4) and the catheter clamping component (5) are respectively set one-to-one.

4. The cannulation device according to claim 3, characterized in that, Also includes: A second moving component (7) is used to move the base (1) along a second horizontal direction.

5. The cannulation device according to claim 4, characterized in that, Also includes: A third moving component (8) for driving the base (1) to move in the vertical direction; The first horizontal direction, the second horizontal direction, and the vertical direction are set perpendicularly.

6. The cannulation device according to claim 5, characterized in that, Also includes: A gathering assembly (9) is disposed at one end of the base (1) away from the mounting seat, the gathering assembly (9) being used to gather the tail ends of multiple conduits. in, The aggregation component (9) includes: A first convergence rod (91) and a second convergence rod (92) are arranged at intervals along a second horizontal direction; The converging drive (93) is used to drive the first converging rod (91) and the second converging rod (92) to move toward each other or toward each other.

7. The cannulation device according to any one of claims 1 to 6, characterized in that, The mounting base and the base (1) are specifically fixedly connected; or, The mounting base and the base (1) are specifically detachably connected.

8. The cannulation device according to claim 7, characterized in that, The base (1) includes: Support platform (21); A first positioning platform (22) and a second positioning platform (23) are connected to the support platform (21). The first positioning platform (22) is used to support the first positioning component (3), and the second positioning platform (23) is used to support the second positioning component (4). Positioning rods (24) are provided on both sides of the support platform (21), and the positioning rods (24) are used to abut against both sides of the mounting base for positioning.

9. The cannulation device according to claim 8, characterized in that, The first positioning component (3) includes a first positioning block (32), a second positioning block (33) and a first driving component. The first driving component is used to drive the first positioning block (32) and the second positioning block (33) to move simultaneously toward each other or away from each other. A first through hole (31) is formed between the first positioning block (32) and the second positioning block (33). The second positioning component (4) includes a third positioning block (42), a fourth positioning block (43), and a second driving component. The second driving component is used to drive the third positioning block (42) and the fourth positioning block (43) to move simultaneously toward each other and away from each other. A second through hole (41) is formed between the third positioning block (42) and the fourth positioning block (43).

10. The cannulation device according to claim 9, characterized in that, The first driving component includes: A first arc-shaped cam (34) is provided at the bottom of the first positioning block (32) and the second positioning block (33). A first positioning surface (35) is set on the top of the first positioning platform (22) and used in conjunction with the first arc-shaped cam, and a first angle is formed between the two first positioning surfaces (35); A first driving member (36) is used to drive the first positioning stage (22) to move in the vertical direction. The second driving component includes: The second arc-shaped cam (44) is disposed at the bottom of the third positioning block (42) and the fourth positioning block (43). A second positioning surface (45) is set on the top of the second positioning platform (23) and used in conjunction with the second arc-shaped cam (44), and a second angle is formed between the two second positioning surfaces (45); The second driving member (46) is used to drive the second positioning stage (23) to move in the vertical direction. The projection of the center lines of the two first positioning surfaces (35) onto the second positioning stage (23) coincides with the center lines of the two second positioning surfaces (45).

Images