Three-wheel rotating clamping mechanism for balloon medicine spraying machine

Abstract

The three-wheel rotating clamping mechanism comprises a fixing plate, a lower clamping groove is formed in the left side of the top of the fixing plate, the left side and the right side of the lower clamping groove are each rotationally connected with a first rubber coating wheel, and the front ends of rotating shafts of the two first rubber coating wheels are each fixedly sleeved with a first belt wheel; the front side of the fixed plate is fixedly connected with a motor, the clamping cylinder composed of the upper cylinder body and the lower cylinder body is used for clamping the hypotube in a buckling mode, the movable plate and the fixed plate can be opened and closed up and down, the clamping cylinder can be placed among the three rubber coating wheels from the side edge, and under three-wheel fixation composed of the two first rubber coating wheels and the two second rubber coating wheels, the hypotube can be clamped through the clamping cylinder. The motor drives the belt to enable the hypotube to rotate, compared with an existing hollow motor clamping mode, tube penetrating action and hypotube clamping operation are not needed, limitation of the length of a balloon catheter is avoided, operation is more convenient, the hypotube does not need to be pulled, and the risk of tube body scratching is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of balloon medicine spraying, and particularly relates to a three-wheel rotating clamping mechanism for a balloon medicine spraying machine. Background Art

[0002] A balloon catheter is an interventional medical device used to dilate blocked blood vessels and restore the reduced inner diameter of blood vessels. During the production process, a balloon drug sprayer is required to coat the balloon catheter with drugs and active substances. The balloon catheter mainly consists of a balloon, a hypotube and a Luer connector. During the spraying process, the entire balloon catheter needs to be straightened and inflated before rotational spraying. During the straightening process, the catheter needs to be clamped and fixed to ensure the smooth rotation of the balloon.

[0003] There are two main clamping devices installed in the sprayer, one is for clamping the tip of the balloon, and the other is for clamping the hypotube body. The conventional clamping mechanism for the hypotube body adopts a hollow motor to clamp it. During the operation, the hypotube and the Luer connector need to pass through the hollow clamping area. However, the balloon catheter is relatively long, and the tube-threading method is not only inconvenient to operate, but also prone to scratching the tube during pulling the tube. Therefore, a three-wheel rotating clamping mechanism for a balloon drug sprayer is proposed, which aims to make the clamping process of the tube more convenient and avoid the risk of scratching the tube. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a three-wheel rotating clamping mechanism for a balloon drug sprayer, which clamps the hypotube in a snap-fitting manner through a clamp composed of an upper cylinder and a lower cylinder, and the movable plate and the fixed plate can be opened and closed up and down, so that the clamp can be placed between the three rubber-coated wheels from the side. Under the three-wheel fixation composed of two first rubber-coated wheels and a second rubber-coated wheel, the hypotube is rotated by a motor-driven belt. Compared with the existing hollow motor clamping method, there is no need to thread the tube, and the operation of clamping the hypotube is not limited by the length of the balloon catheter. Not only is the operation more convenient, but there is also no need to pull the hypotube, thereby avoiding the risk of scratching the tube body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A three-wheel rotating clamping mechanism for a balloon drug spraying machine comprises a fixed plate, a lower clamping groove is provided on the left side of the top of the fixed plate, first rubber-coated wheels are rotatably connected to the left and right sides of the lower clamping groove, first pulleys are fixedly sleeved on the front ends of the rotating shafts of the two first rubber-coated wheels, a motor is fixedly connected to the front side of the fixed plate, a second pulley is fixedly sleeved on the output shaft of the motor, the second pulley is connected to the two first pulleys through a belt drive, an installation groove is provided on the right side of the top of the fixed plate, a cylinder is fixedly connected to the bottom of the installation groove, The telescopic end at the top of the cylinder is fixedly connected to a movable plate located above the fixed plate, and an upper clamping groove located above the lower clamping groove is opened at the bottom of the movable plate, and a second rubber-coated wheel is rotatably connected in the upper clamping groove, and a clamping cylinder is placed between the second rubber-coated wheel and the two first rubber-coated wheels, and the outer wall of the clamping cylinder is in contact with the second rubber-coated wheel and the two first rubber-coated wheels, and the clamping cylinder includes an upper cylinder body and a lower cylinder body, and the upper cylinder body and the lower cylinder body have the same diameter and a semicircular cross-section, and a hypotube is placed on the inside of the clamping cylinder, and the size of the inner side of the clamping cylinder is adapted to the diameter of the hypotube.

[0007] Furthermore, the front side of the fixed plate is rotatably connected to a third pulley, the third pulley is located below the lower clamping groove, and the belt passes around the bottom side of the third pulley.

[0008] Furthermore, a sliding groove is provided on the top of the fixed plate, and a guide rod slidably connected to the sliding groove is fixedly connected to the bottom of the movable plate.

[0009] Furthermore, connecting parts are provided at both ends of the chuck, and the connecting parts include a positioning groove, a positioning block, a spring, a clamping rod, a clamping groove and a connecting groove. A positioning groove is provided at the top of the lower cylinder, and a positioning block corresponding to the positioning groove is fixedly connected to the bottom of the upper cylinder. A connecting groove is provided in the lower cylinder, and a spring is fixedly connected to the inner wall of the connecting groove, and the other end of the spring is fixedly connected to a clamping rod, one end of the clamping rod passes through the outside of the lower cylinder, and the other end of the clamping rod passes through the positioning groove and is an inclined surface. The clamping rod is slidably connected to the lower cylinder, and a clamping groove matching the clamping rod is provided on the side of the positioning block.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The hypotube is clamped by a clamp composed of an upper cylinder and a lower cylinder, and the movable plate and the fixed plate can be opened and closed up and down, so that the clamp can be placed between the three rubber-coated wheels from the side. Under the three-wheel fixation consisting of the two first rubber-coated wheels and the second rubber-coated wheels, the hypotube is rotated by a motor-driven belt. Compared with the existing hollow motor clamping method, there is no need to thread the tube, and the operation of clamping the hypotube is not limited by the length of the balloon catheter. Not only is the operation more convenient, but there is also no need to pull the hypotube, avoiding the risk of scratching the tube body.

[0012] 2. The third pulley is used to guide the direction of the belt, so as to avoid the belt being between the two first rubber-wrapped wheels and hindering the placement of the clamp. The slide groove and the guide rod are used to enable the movable plate to move along the slide groove, so as to avoid the movable plate from deviating during movement and causing the position of the second rubber-wrapped wheel to deviate.

[0013] 3. Through the various components of the connector, the upper cylinder and the lower cylinder are easy to snap together and fix, avoiding the need for additional fixing steps, and further facilitating the clamping of the hypotube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the lower cylinder structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the upper cylinder structure of the utility model.

[0018] In the figure: 1 fixed plate, 2 lower clamping groove, 3 first rubber-coated wheel, 4 first pulley, 5 motor, 6 second pulley, 7 belt, 8 mounting groove, 9 cylinder, 10 movable plate, 11 upper clamping groove, 12 second rubber-coated wheel, 13 connecting piece, 131 positioning groove, 132 positioning block, 133 spring, 134 clamping rod, 135 clamping groove, 136 connecting groove, 14 clamping cylinder, 141 upper cylinder, 142 lower cylinder, 15 hypotube, 16 third pulley, 17 slide groove, 18 guide rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example

[0021] See attached Figures 1-4 As shown, a three-wheel rotating clamping mechanism for a balloon drug spraying machine includes a fixed plate 1, a lower clamping groove 2 is opened on the left side of the top of the fixed plate 1, and the left and right sides of the lower clamping groove 2 are rotatably connected with first rubber-coated wheels 3, and the front ends of the rotating shafts of the two first rubber-coated wheels 3 are fixedly sleeved with first pulleys 4, the front side of the fixed plate 1 is fixedly connected with a motor 5, and the output shaft of the motor 5 is fixedly sleeved with a second pulley 6, and the second pulley 6 is connected to the two first pulleys 4 through a belt 7. The right side of the top of the fixed plate 1 is opened with a mounting groove 8, and the bottom of the mounting groove 8 is fixedly connected with a cylinder 9, and the telescopic end of the top of the cylinder 9 is fixedly connected A movable plate 10 is connected to the top of the fixed plate 1, and an upper clamping groove 11 is provided at the bottom of the movable plate 10 and is located above the lower clamping groove 2. A second rubber-wrapped wheel 12 is rotatably connected in the upper clamping groove 11. A clamping cylinder 14 is placed between the second rubber-wrapped wheel 12 and the two first rubber-wrapped wheels 3. The outer wall of the clamping cylinder 14 fits both the second rubber-wrapped wheel 12 and the two first rubber-wrapped wheels 3. The clamping cylinder 14 includes an upper cylinder 141 and a lower cylinder 142. The upper cylinder 141 and the lower cylinder 142 have the same diameter and a semicircular cross-section. A hypotube 15 is placed on the inside of the clamping cylinder 14, and the size of the inner side of the clamping cylinder 14 is adapted to the diameter of the hypotube 15.

[0022] The front side of the fixed plate 1 is rotatably connected with a third belt pulley 16 . The third belt pulley 16 is located below the lower clamping groove 2 , and the belt 7 passes around the bottom side of the third belt pulley 16 .

[0023] A slide groove 17 is provided on the top of the fixed plate 1 , and a guide rod 18 slidably connected to the slide groove 17 is fixedly connected to the bottom of the movable plate 10 .

[0024] Connecting members 13 are provided at both ends of the clamping cylinder 14, and the connecting member 13 includes a positioning groove 131, a positioning block 132, a spring 133, a clamping rod 134, a clamping groove 135 and a connecting groove 136. A positioning groove 131 is provided at the top of the lower cylinder 142, and a positioning block 132 corresponding to the positioning groove 131 is fixedly connected to the bottom of the upper cylinder 141. A connecting groove 136 is provided in the lower cylinder 142, and a spring 133 is fixedly connected to the inner wall of the connecting groove 136. The other end of the spring 133 is fixedly connected to the clamping rod 134, one end of the clamping rod 134 passes through the outside of the lower cylinder 142, and the other end of the clamping rod 134 passes through the positioning groove 131 and is an inclined surface. The clamping rod 134 is slidably connected to the lower cylinder 142, and a clamping groove 135 adapted to the clamping rod 134 is provided on the side of the positioning block 132.

[0025] Working principle: In the present invention, when clamping the tube body, the hypotube 15 is first placed between the upper cylinder 141 and the lower cylinder 142, and the tube body is fixed by pressing and buckling. Specifically, when the positioning block 132 is inserted into the positioning groove 131, the inclined surface of the clamping rod 134 is subjected to the pressure of the positioning block 132 and first moves out of the positioning groove 131. At this time, the spring 133 is squeezed. After the positioning block 132 is fully inserted into the positioning groove 131, the clamping rod 134 corresponds to the clamping groove 135 and is no longer restricted by the positioning block 132. Then the spring 133 pushes the clamping rod 134 to reset, and the clamping rod 134 returns to the positioning groove 131 and is inserted into the clamping groove 135, restricting and fixing the position of the positioning block 132, thereby fixing the upper cylinder 141 and the lower cylinder 142 to form a complete clamping tube 14, and then the clamping tube 14 is placed between the two The movable plate 10 is moved downward along the track of the slide groove 17 until the second rubber-coated wheel 12 abuts against the upper side of the clamping cylinder 14. At this time, the clamping cylinder 14 is fixed by the three rubber-coated wheels to complete the clamping of the hypotube 15. When spraying the drug, the second pulley 6 is driven by the motor 5 to rotate, and the belt 7 moves with the rotation of the second pulley 6. During the movement, the belt 7 drives the two first pulleys 4 to rotate, and the two first pulleys 4 drive the two first rubber-coated wheels 3 to rotate. The rotation of the first rubber-coated wheel 3 drives the clamping cylinder 14 to rotate, and the clamped hypotube 15 rotates synchronously with the clamping cylinder 14, thereby spraying the drug on the balloon catheter.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A three-wheel rotating clamping mechanism for a balloon drug spraying machine, comprising a fixing plate (1), characterized in that: A lower clamping groove (2) is provided on the left side of the top of the fixed plate (1), and first rubber-coated wheels (3) are rotatably connected to the left and right sides of the lower clamping groove (2), and the front ends of the rotating shafts of the two first rubber-coated wheels (3) are fixedly sleeved with first belt pulleys (4). A motor (5) is fixedly connected to the front side of the fixed plate (1), and a second belt pulley (6) is fixedly sleeved on the output shaft of the motor (5), and the second belt pulley (6) is connected to the two first belt pulleys (4) through a belt (7). A mounting groove (8) is provided on the right side of the top of the fixed plate (1), and a cylinder (9) is fixedly connected to the bottom of the mounting groove (8), and a movable plate (1) located above the fixed plate (1) is fixedly connected to the telescopic end of the top of the cylinder (9). 10), an upper clamping groove (11) located above the lower clamping groove (2) is formed at the bottom of the movable plate (10), a second rubber-coated wheel (12) is rotatably connected in the upper clamping groove (11), a clamping cylinder (14) is placed between the second rubber-coated wheel (12) and the two first rubber-coated wheels (3), the outer wall of the clamping cylinder (14) is in contact with the second rubber-coated wheel (12) and the two first rubber-coated wheels (3), the clamping cylinder (14) comprises an upper cylinder (141) and a lower cylinder (142), the upper cylinder (141) and the lower cylinder (142) have the same diameter and a semicircular cross-section, a hypotube (15) is placed inside the clamping cylinder (14), and the size of the inner side of the clamping cylinder (14) is adapted to the diameter of the hypotube (15).

2. The three-wheel rotating clamping mechanism for a balloon drug spraying machine according to claim 1 is characterized in that: The front side of the fixed plate (1) is rotatably connected to a third belt pulley (16), the third belt pulley (16) is located below the lower clamping groove (2), and the belt (7) passes around the bottom side of the third belt pulley (16).

3. The three-wheel rotating clamping mechanism for a balloon drug spraying machine according to claim 1 is characterized in that: A sliding groove (17) is provided on the top of the fixed plate (1), and a guide rod (18) is fixedly connected to the bottom of the movable plate (10) and is slidably connected to the sliding groove (17).

4. The three-wheel rotating clamping mechanism for a balloon drug spraying machine according to claim 1 is characterized in that: Both ends of the clamping cylinder (14) are provided with connecting members (13), and the connecting member (13) comprises a positioning groove (131), a positioning block (132), a spring (133), a clamping rod (134), a clamping groove (135) and a connecting groove (136). The top of the lower cylinder (142) is provided with a positioning groove (131), the bottom of the upper cylinder (141) is fixedly connected with a positioning block (132) corresponding to the positioning groove (131), and the lower cylinder (142) is provided with a connecting groove (136). 6), a spring (133) is fixedly connected to the inner wall of the connecting groove (136), and the other end of the spring (133) is fixedly connected to a clamping rod (134), one end of the clamping rod (134) passes through the outside of the lower cylinder (142), and the other end of the clamping rod (134) passes through the positioning groove (131) and is an inclined surface, the clamping rod (134) is slidably connected to the lower cylinder (142), and a clamping groove (135) adapted to the clamping rod (134) is provided on the side of the positioning block (132).

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