Strength detection equipment for balloon dilatation catheter

Abstract

The utility model provides strength detection equipment for a balloon dilatation catheter, and relates to the technical field of medical equipment, the strength detection equipment comprises a bottom plate, a guide rod, a top plate, a sliding plate and a fixed plate, a fixed assembly is arranged between the sliding plate and the fixed plate, and the top of the top plate is provided with a lifting mechanism; the movable block is pulled to be separated from the positioning block, the rubber sleeve clamped with the balloon dilatation catheter is placed in the fixing hole in the positioning block, the movable block and the positioning block are driven to be automatically closed through elastic force generated by the torsion spring after the hand is loosened, the two threaded blocks are combined to form a cylinder structure, the fixing sleeve is screwed into the outer side of the cylinder, and the balloon dilatation catheter is fixed. The positioning block and the movable block are used for completely connecting the positioning block and the movable block into a whole, meanwhile, the positioning block and the movable block clamp the rubber sleeve through the fixing holes, the two ends of the balloon dilatation catheters are fixed to the sliding plate and the fixed plate into a whole, the multiple balloon dilatation catheters can be fixed at a time, and the accuracy of the detection result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a kind of strength detection equipment of balloon dilatation catheter. BACKGROUND

[0002] Balloon dilatation catheter is a kind of medical equipment, balloon dilatation catheter is mainly used for the treatment of coronary artery, cerebral artery and other vascular stenosis, is a minimally invasive interventional therapy method, with little trauma, recovery fast, treatment effect is remarkable and the like, when producing PTA balloon dilatation catheter, PTA balloon dilatation catheter needs to be tensile strength detection, tensile strength detection is one of important methods for evaluating the maximum bearing capacity of balloon dilatation catheter when being stretched;

[0003] At present, the existing detection equipment when detecting balloon dilatation catheter, to improve the accuracy of experiment, usually carries out experiment to multiple groups of balloon dilatation catheter, needs to assemble single balloon dilatation catheter each time, needs to spend a lot of time for clamping and fixing, leading to the detection efficiency of balloon dilatation catheter, therefore, the utility model provides a kind of strength detection equipment of balloon dilatation catheter to solve the above problems. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a kind of strength detection equipment of balloon dilatation catheter to solve the problem of each time needing to assemble single balloon dilatation catheter in multiple experiments, needing to spend a lot of time for clamping and fixing, leading to the detection efficiency of balloon dilatation catheter.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a kind of strength detection equipment of balloon dilatation catheter, including bottom plate, guide rod, top plate, sliding plate and fixed plate, a group of guide rods are fixedly connected on the both sides of bottom plate, the top of guide rod is fixedly connected with top plate, the outer side of guide rod is slidably connected with sliding plate, the bottom of guide rod is fixedly connected with fixed plate, fixed assembly is equipped between sliding plate and fixed plate, and lifting mechanism is equipped on the top of top plate.

[0006] Further improvement lies in that: the fixed assembly includes positioning block, movable block, fixed hole, threaded block and fixed sleeve, the bottom of sliding plate and the top of fixed plate are fixedly connected with positioning block, the side of positioning block is hinged with movable block, the inside of positioning block and movable block is equipped with fixed hole, one end of positioning block and movable block is fixedly connected with threaded block, and the outer side of threaded block is threadedly connected with fixed sleeve.

[0007] Further improvement lies in that: torsional spring is equipped at the hinge of positioning block and movable block, and the shape of threaded block is half-cylinder structure.

[0008] A further improvement is that a rubber sleeve is held inside the fixing hole, and both ends of the balloon dilation catheter are inserted into the rubber sleeve and engaged with it.

[0009] A further improvement is that the lifting mechanism includes a threaded sleeve and a lead screw, the threaded sleeve is rotatably connected inside the top plate, the lead screw is threadedly connected inside the threaded sleeve, and the bottom end of the lead screw is fixedly connected to the top of the sliding plate.

[0010] A further improvement is that a first gear is fixedly connected to the outer side of the threaded sleeve, a self-locking motor is fixedly installed on one side of the top of the top plate, and a second gear is fixedly connected to the output end of the self-locking motor. The outer walls of the first gear and the second gear mesh with each other.

[0011] A further improvement is that: sliding sleeves are symmetrically fixedly connected to both sides of the sliding plate, the bottom end of the guide rod extends through the interior of the sliding sleeve, and the interior of the sliding sleeve is coated with lubricating oil.

[0012] The beneficial effects of this utility model are: by pulling the movable block apart from the positioning block, the rubber sleeve with the balloon dilation catheter is inserted into the fixing hole inside the positioning block. After releasing, the elastic force generated by the torsion spring drives the movable block and the positioning block to close automatically. The two threaded blocks combine to form a cylindrical structure. The fixing sleeve is screwed into the outside of the cylinder to completely connect the positioning block and the movable block into one body. At the same time, the positioning block and the movable block clamp the rubber sleeve with the fixing hole, so that the two ends of the balloon dilation catheter are fixed to the sliding plate and the fixing plate respectively. Multiple balloon dilation catheters can be fixed at one time, which improves the accuracy of the test results. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the fixing component structure of this utility model;

[0015] Figure 3 This is a diagram showing the clamping state of the fixing component of this utility model.

[0016] In the diagram: 1. Base plate; 2. Guide rod; 3. Top plate; 4. Sliding plate; 5. Fixed plate; 6. Fixed assembly; 7. Positioning block; 8. Movable block; 9. Fixed hole; 10. Threaded block; 11. Fixed sleeve; 12. Torsion spring; 13. Rubber sleeve; 14. Threaded sleeve; 15. Lead screw; 16. Gear No. 1; 17. Self-locking motor; 18. Gear No. 2. Detailed Implementation

[0017] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0018] according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a strength testing device for a balloon dilation catheter, including a base plate 1, guide rods 2, a top plate 3, a sliding plate 4, and a fixed plate 5. A set of guide rods 2 are symmetrically fixedly connected to both sides of the base plate 1. The top plate 3 is fixedly connected to the top of the guide rods 2. The sliding plate 4 is slidably connected to the outer side of the guide rods 2. The fixed plate 5 is fixedly connected to the bottom of the guide rods 2. A fixing component 6 is provided between the sliding plate 4 and the fixed plate 5. A lifting mechanism is provided at the top of the top plate 3. When using this strength testing device, the two ends of the balloon dilation catheter are fixed to the sliding plate 4 and the fixed plate 5 respectively by the fixing component 6. Then, the lifting mechanism drives the sliding plate 4 to move upward. After moving to a specified distance, the balloon dilation catheter is observed to see if it breaks, thereby testing the strength of the balloon dilation catheter.

[0019] The fixing component 6 includes a positioning block 7, a movable block 8, a fixing hole 9, a threaded block 10, and a fixing sleeve 11. The fixing hole 9 holds a rubber sleeve 13. The two ends of the balloon dilation catheter are respectively inserted into the rubber sleeve 13 and engaged with it. The two ends of the balloon dilation catheter are respectively inserted into the rubber sleeve 13, and the rubber sleeve 13 is used to clamp the two ends of the balloon dilation catheter.

[0020] Positioning blocks 7 are fixedly connected to the bottom of the sliding plate 4 and the top of the fixed plate 5. A movable block 8 is hinged to one side of the positioning block 7. Both the positioning block 7 and the movable block 8 have fixing holes 9 inside. A threaded block 10 is fixedly connected to one end of the positioning block 7 and the movable block 8. A fixing sleeve 11 is threaded to the outside of the threaded block 10. A torsion spring 12 is provided at the hinge of the positioning block 7 and the movable block 8. The threaded block 10 is shaped as a semi-cylindrical structure. Pulling the movable block 8 separates it from the positioning block 7, thus securing the rubber tube containing the balloon dilation catheter. The rubber sleeve 13 is inserted into the fixing hole 9 inside the positioning block 7. After releasing, the elastic force generated by the torsion spring 12 drives the movable block 8 and the positioning block 7 to close automatically. The two threaded blocks 10 are combined to form a cylindrical structure. The fixing sleeve 11 is screwed into the outside of the cylinder to completely connect the positioning block 7 and the movable block 8 into one unit. At the same time, the positioning block 7 and the movable block 8 clamp the rubber sleeve 13 with the fixing hole 9, so that the two ends of the balloon dilation catheter are fixed to the sliding plate 4 and the fixing plate 5 respectively. Multiple balloon dilation catheters can be fixed at one time, which improves the accuracy of the test results.

[0021] The lifting mechanism includes a threaded sleeve 14 and a lead screw 15. The threaded sleeve 14 is rotatably connected inside the top plate 3, and the lead screw 15 is threadedly connected inside the threaded sleeve 14. The bottom end of the lead screw 15 is fixedly connected to the top of the sliding plate 4. A first gear 16 is fixedly connected to the outside of the threaded sleeve 14. A self-locking motor 17 is fixedly installed on one side of the top of the top plate 3. A second gear 18 is fixedly connected to the output end of the self-locking motor 17. The outer walls of the first gear 16 and the second gear 18 mesh with each other. The output end of the self-locking motor 17 drives the second gear 18 to rotate. The second gear 18 meshes with the first gear 16, and the first gear 16 is integrated with the threaded sleeve 14. The self-locking motor 17 can drive the threaded sleeve 14 to rotate. The threaded sleeve 14 is threadedly engaged with the lead screw 15. The sliding plate 4 is connected to the bottom end of the lead screw 15, and the guide rod 2 restricts the movement trajectory of the sliding plate 4. When the self-locking motor 17 drives the threaded sleeve 14 to rotate in both directions, the lead screw 15 can drive the sliding plate 4 to move up and down along the guide rod 2. After the sliding plate 4 moves upward to a specified distance, the strength of the balloon dilation catheter is tested by checking whether it breaks after being pulled. After the test, the fixing sleeve 11 is unscrewed from the outside of the threaded block 10, the movable block 8 is rotated to separate from the positioning block 7, the top plate 3 is taken out from the inside of the fixing hole 9, and then the balloon dilation catheter is taken out from the inside of the top plate 3.

[0022] The sliding plate 4 is symmetrically fixedly connected to two sides with sliding sleeves. The bottom end of the guide rod 2 extends through the interior of the sliding sleeve. The interior of the sliding sleeve is coated with lubricating oil, which can reduce the friction between the sliding sleeve and the guide rod 2, making the sliding plate 4 move more smoothly.

[0023] The strength testing device for this balloon dilation catheter involves pulling the movable block 8 to separate it from the positioning block 7. The rubber sleeve 13, which holds the balloon dilation catheter, is then placed into the fixing hole 9 inside the positioning block 7. Upon release, the spring force generated by the torsion spring 12 automatically closes the movable block 8 and the positioning block 7. Two threaded blocks 10 combine to form a cylindrical structure. The fixing sleeve 11 is screwed into the outer side of the cylinder to completely connect the positioning block 7 and the movable block 8 as one unit. Simultaneously, the positioning block 7 and the movable block 8 clamp the rubber sleeve 13 using the fixing hole 9, thus fixing both ends of the balloon dilation catheter to the sliding plate 4 and the fixing plate 5 respectively. Multiple balloon dilation catheters can be fixed at once, improving the accuracy of the test results.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for a balloon dilation catheter, comprising a base plate (1), a guide rod (2), a top plate (3), a sliding plate (4), and a fixing plate (5), characterized in that: A set of guide rods (2) are symmetrically fixedly connected to both sides of the base plate (1). A top plate (3) is fixedly connected to the top of the guide rods (2). A sliding plate (4) is slidably connected to the outer side of the guide rods (2). A fixing plate (5) is fixedly connected to the bottom of the guide rods (2). A fixing component (6) is provided between the sliding plate (4) and the fixing plate (5). A lifting mechanism is provided at the top of the top plate (3). The fixing component (6) includes a positioning block (7), a movable block (8), a fixing hole (9), a threaded block (10), and a fixing sleeve (11). The bottom of the sliding plate (4) and the top of the fixing plate (5) are both fixedly connected to the positioning block (7). The movable block (8) is hinged to one side of the positioning block (7). The positioning block (7) and the movable block (8) are both provided with fixing holes (9). The threaded block (10) is fixedly connected to one end of the positioning block (7) and the movable block (8). The fixing sleeve (11) is threadedly connected to the outer side of the threaded block (10).

2. The strength testing device for a balloon dilation catheter according to claim 1, characterized in that: A torsion spring (12) is provided at the hinge of the positioning block (7) and the movable block (8), and the threaded block (10) is shaped as a semi-cylindrical structure.

3. The strength testing device for a balloon dilation catheter according to claim 1, characterized in that: The rubber sleeve (13) is held inside the fixing hole (9), and the two ends of the balloon dilation catheter are inserted into the rubber sleeve (13) and engaged with it.

4. The strength testing device for a balloon dilation catheter according to claim 1, characterized in that: The lifting mechanism includes a threaded sleeve (14) and a lead screw (15). The threaded sleeve (14) is rotatably connected inside the top plate (3), and the lead screw (15) is threadedly connected inside the threaded sleeve (14). The bottom end of the lead screw (15) is fixedly connected to the top of the sliding plate (4).

5. The strength testing device for a balloon dilation catheter according to claim 4, characterized in that: A first gear (16) is fixedly connected to the outer side of the threaded sleeve (14). A self-locking motor (17) is fixedly installed on one side of the top of the top plate (3). A second gear (18) is fixedly connected to the output end of the self-locking motor (17). The outer walls of the first gear (16) and the second gear (18) mesh with each other.

6. The strength testing device for a balloon dilation catheter according to claim 1, characterized in that: The sliding plate (4) is symmetrically fixedly connected to the two sides of the sliding sleeve, and the bottom end of the guide rod (2) extends through the interior of the sliding sleeve. The interior of the sliding sleeve is coated with lubricating oil.

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