Intracardiac stent surface medicine spraying device
By designing a drug spraying device on the surface of the intracardiac stent, using the cooperation of the rubber sleeve ring and the liquid-absorbing cotton tube, the problem of the traditional spraying technology of the drug liquid flowing down to the inner surface of the stent is solved, and the drug is evenly sprayed and improved. quality.
Patent Information
- Application Number
- CN202420593015.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-03-26
AI Technical Summary
When spraying drugs in traditional heart stents, the liquid can easily flow down to the inner surface of the stent, resulting in unqualified spraying and affecting medical results.
A drug spraying device on the surface of the intracardiac stent is designed. By setting up a rubber sleeve ring and a suction cotton tube, and using the cooperation of the expansion block and the spring, the diameter of the suction cotton tube is reduced and expanded, thereby fixing the cardiac stent on the suction tube. On the liquid cotton tube, the driving motor drives the liquid suction cotton tube to rotate to achieve uniform spraying of the drug.
It effectively prevents the chemical liquid from entering the inner surface of the stent, improves the spraying quality, makes the spraying process more uniform, and ensures the qualified specifications of the stent.
Smart Images
Figure CN222369393U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drug spraying, and in particular relates to a device for spraying drugs on the surface of an intracardiac stent. Background Art
[0002] Heart stents, also known as coronary artery stents, are commonly used medical devices in cardiac interventional surgery and have the function of clearing arterial blood vessels. The main materials are stainless steel, nickel-titanium alloy or cobalt-chromium alloy. They first appeared in the 1980s and have gone through the development process of metal stents, drug-coated stents, and bioresorbable stents.
[0003] Before implantation, a heart stent often needs to have its outer surface sprayed with drugs to prevent inflammation after it is implanted in the pipeline. When spraying drugs on the outside of a traditional heart stent, the drug liquid sometimes inevitably flows down to the inner surface of the heart stent, which can easily make the spraying unqualified and thus affect the medical effect of the heart stent. Therefore, a device for spraying drugs on the surface of an intracardiac stent is needed to solve the above problem. Utility Model Content
[0004] The utility model aims to provide a device for spraying drugs on the surface of an intracardiac stent, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device for spraying medicine on the surface of an intracardiac stent, comprising a base, one side of the base is fixedly connected with a top block, one side of the top block is rotatably connected with a connecting block, a driving motor is arranged at the rotation position of the connecting block and one side of the top block, the connecting block is fixedly connected with two connecting blocks, the proximal sides of the two connecting blocks are jointly fixedly connected with a sliding rod, the outer side of the sliding rod is slidably connected with two expansion blocks, the outer side of the sliding rod is sleeved with a spring, one side of the top block is fixedly connected with a double-headed telescopic rod, the two ends of the double-headed telescopic rod are respectively fixedly connected to the proximal sides of the two expansion blocks, the outer sides of the two expansion blocks are jointly fixedly connected with a rubber sleeve ring, the rubber sleeve ring is provided with a guide notch, the outer side of the rubber sleeve ring is fixedly connected with a liquid-absorbing cotton tube, the base is fixedly connected with a fixing block, the fixing block is fixedly connected with a displacement mechanism, and the displacement mechanism is provided with a stent medicine sprayer.
[0006] By setting the above structure, when the two expansion blocks are clamped and displaced, the rubber sleeve ring and the liquid-absorbing cotton tube will be driven to reduce their diameters to a certain extent, so that the heart stent can be sleeved on the liquid-absorbing cotton tube. During this process, the rubber sleeve ring will allow the protruding part of the rubber sleeve ring to be squeezed and distributed centripetally through the thin guide notch, so that the rubber sleeve ring can drive the liquid-absorbing cotton tube to achieve the effect of reducing the diameter. After that, the expansion block can be released, and the rubber sleeve ring and the liquid-absorbing cotton tube will be stretched open by the two expansion blocks under the rebound of the spring, so that the sleeved heart stent can be fixed on the liquid-absorbing cotton tube, and then the surface of the heart stent can be sprayed by the stent drug sprayer, and the heart stent on the liquid-absorbing cotton tube can be driven to rotate and change the surface under the operation of the driving motor, which helps to make the heart stent spray more evenly. During this period, the liquid medicine sprayed in the gap on the outer surface of the heart stent will be blocked and absorbed by the liquid-absorbing cotton tube, so that the inner surface of the heart stent is not easy to contact the spray liquid, which helps to improve the spraying quality of the heart stent and make it qualified.
[0007] As a preferred implementation, the cross section of the expansion block is arc-shaped.
[0008] As a preferred implementation, two ends of the spring are respectively fixedly connected to adjacent sides of the two expansion blocks.
[0009] As a preferred implementation, a protrusion is fixedly connected to one side of the top block.
[0010] As a preferred implementation, a scissor-type clamping rod is provided on one side of the protrusion.
[0011] As a preferred implementation, the scissor-type clamping rod is located above the two expansion blocks.
[0012] By setting up a scissor-type clamp rod, when the scissor-type clamp rod is held and clamped, the scissor-type clamp rod will clamp the two expansion blocks for displacement, thereby facilitating the clamping and manipulation of the two expansion blocks. In addition, by setting up a displacement mechanism, the stent drug sprayer can be displaced, thereby allowing the stent drug sprayer to adapt to the drug spraying of longer heart stents.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model, by setting the above structure, when the two expansion blocks are clamped and displaced, the rubber sleeve ring and the liquid-absorbing cotton tube will be driven to reduce their diameters to a certain extent, so that the heart stent can be sleeved on the liquid-absorbing cotton tube. During this process, the rubber sleeve ring will allow the protruding part of the rubber sleeve ring to be squeezed and distributed centripetally through the thin part of the guide notch, so that the rubber sleeve ring can drive the liquid-absorbing cotton tube to achieve the effect of reducing the diameter. After that, the expansion block can be released. Under the rebound of the spring, the expansion block will open the rubber sleeve ring and the liquid-absorbing cotton tube through the two expansion blocks, so that the sleeved heart stent can be fixed on the liquid-absorbing cotton tube, and then the surface of the heart stent can be sprayed by the stent drug sprayer, and the heart stent on the liquid-absorbing cotton tube can be driven to rotate and change the surface under the operation of the driving motor, so as to help make the heart stent spray more evenly. During this period, because the liquid sprayed in the gap on the outer surface of the heart stent will be blocked and absorbed by the liquid-absorbing cotton tube, the inner surface of the heart stent is not easy to contact the sprayed liquid, so as to help improve the spraying quality of the heart stent and make it qualified and standardized.
[0015] The utility model provides a scissor-type clamp rod. When the scissor-type clamp rod is held and clamped, the scissor-type clamp rod will clamp the two expansion blocks for displacement, thereby facilitating the clamping and manipulation of the two expansion blocks. In addition, by providing a displacement mechanism, the stent drug sprayer can be displaced, thereby allowing the stent drug sprayer to adapt to drug spraying of longer heart stents. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model from a side view;
[0018] Figure 3 For this utility model Figure 2 A is a schematic diagram of the magnified three-dimensional structure;
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding rod of the utility model when viewed from above;
[0020] Figure 5 It is a schematic diagram of the rear-view stereoscopic structure of the utility model.
[0021] In the figure: 1. base; 2. top block; 3. connecting block; 4. connecting block; 5. sliding rod; 6. expansion block; 7. spring; 8. rubber sleeve ring; 9. guide notch; 10. absorbent cotton tube; 11. fixing block; 12. displacement mechanism; 13. bracket drug sprayer; 14. bump; 15. scissor-type clamp rod; 16. driving motor; 17. double-head telescopic rod. DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with the embodiments.
[0023] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0024] See also Figure 1-5 The utility model provides a device for spraying drugs on the surface of an intracardiac stent, comprising a base 1, a top block 2 is fixedly connected to one side of the base 1, a connecting block 3 is rotatably connected to one side of the top block 2, a driving motor 16 is arranged at the rotating position of the connecting block 3 and one side of the top block 2, two connecting blocks 4 are fixedly connected to the connecting block 3, the adjacent sides of the two connecting blocks 3 are fixedly connected to a sliding rod 5, the outside of the sliding rod 5 is slidably connected to two expansion blocks 6, the outside of the sliding rod 5 is provided with a spring 7, and one side of the top block 2 is fixedly connected to a double-head telescopic rod 1 7, the two ends of the double-head telescopic rod 17 are respectively fixedly connected to the adjacent sides of the two expansion blocks 6, the outsides of the two expansion blocks 6 are commonly fixedly connected with a rubber sleeve ring 8, the rubber sleeve ring 8 is provided with a guide notch 9, the outside of the rubber sleeve ring 8 is fixedly connected with a liquid-absorbing cotton tube 10, the base 1 is fixedly connected with a fixed block 11, the fixed block 11 is fixedly connected with a displacement mechanism 12, and the displacement mechanism 12 is provided with a stent drug sprayer 13. By setting the above structure, when the two expansion blocks 6 are clamped and displaced, the rubber sleeve will be driven The tube ring 8 and the absorbent cotton tube 10 are reduced in diameter to a certain extent, so that the heart stent can be sleeved on the absorbent cotton tube 10. In this process, the rubber sleeve ring 8 will be squeezed and distributed centripetally through the thin part of the guide notch 9, so that the rubber sleeve ring 8 can drive the absorbent cotton tube 10 to achieve the effect of reducing the diameter. After that, the expansion block 6 can be released. The expansion block 6 will open the rubber sleeve ring 8 and the absorbent cotton tube 10 through the two expansion blocks 6 under the rebound of the spring 7, so that the sleeved The heart stent can be fixed on the absorbent cotton tube 10, and then its surface can be sprayed by the stent drug sprayer 13. The driving motor 16 can drive the heart stent on the absorbent cotton tube 10 to rotate and change surface, which helps to make the heart stent spray more evenly. During this period, the drug liquid sprayed in the gap on the outer surface of the heart stent will be blocked and absorbed by the absorbent cotton tube 10, making it difficult for the inner surface of the heart stent to contact the spray liquid, which helps to improve the spraying quality of the heart stent and make it meet the standards.
[0025] The cross section of the expansion block 6 is arc-shaped.
[0026] Two ends of the spring 7 are fixedly connected to adjacent sides of the two expansion blocks 6 .
[0027] A protrusion 14 is fixedly connected to one side of the top block 2 .
[0028] A scissor-type clamping rod 15 is provided on one side of the protrusion 14 .
[0029] The scissor-type clamp rod 15 is located above the two expansion blocks 6. By setting the scissor-type clamp rod 15, when the scissor-type clamp rod 15 is held and clamped, the scissor-type clamp rod 15 will clamp the two expansion blocks 6 for displacement, thereby facilitating the clamping and manipulation of the two expansion blocks 6. In addition, by setting the displacement mechanism 12, the stent drug sprayer 13 can be displaced, thereby allowing the stent drug sprayer 13 to adapt to the drug spraying of longer heart stents.
[0030] The working principle and use process of the utility model are as follows: first, when the scissor-type clamping rod 15 is held and clamped, the scissor-type clamping rod 15 will clamp the two expansion blocks 6 for displacement, thereby facilitating the clamping and manipulation of the two expansion blocks 6. When the two expansion blocks 6 are clamped and displaced, the rubber sleeve ring 8 and the absorbent cotton tube 10 will be driven to reduce their diameters to a certain extent, so as to facilitate the heart stent to be sleeved on the absorbent cotton tube 10. In this process, when the two expansion blocks 6 drive the rubber sleeve ring 8 to reduce its diameter, the rubber sleeve ring 8 will pass through the thin part of the guide notch 9 to allow the rubber sleeve ring 8 to be clamped and protrude. The rubber sleeve ring 8 and the absorbent cotton tube 10 are centripetally extruded and distributed, so that the rubber sleeve ring 8 can drive the absorbent cotton tube 10 to achieve the effect of reducing the diameter. After that, the expansion block 6 can be released. Under the rebound of the spring 7, the expansion block 6 will open the rubber sleeve ring 8 and the absorbent cotton tube 10 through the two expansion blocks 6, so that the heart stent on the sleeve can be fixed on the absorbent cotton tube 10, and then the surface of the heart stent can be sprayed by the stent drug sprayer 13, and the heart stent on the absorbent cotton tube 10 can be driven to rotate and change the surface under the operation of the driving motor 16, which helps to make the heart stent spray more evenly.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A drug spraying device for a surface of an intracardiac stent, comprising a base (1), characterized in that: One side of the base (1) is fixedly connected to a top block (2), one side of the top block (2) is rotatably connected to a connecting block (3), a driving motor (16) is provided at the rotating portion of the connecting block (3) and one side of the top block (2), two connecting blocks (4) are fixedly connected to the connecting block (3), adjacent sides of the two connecting blocks (3) are commonly fixedly connected to a sliding rod (5), the outside of the sliding rod (5) is slidably connected to two expansion blocks (6), the outside of the sliding rod (5) is sleeved with a spring (7), and one side of the top block (2) is fixedly connected to a double-head telescopic rod (17), the two ends of the double-head telescopic rod (17) are respectively fixedly connected to the adjacent sides of the two expansion blocks (6), the outsides of the two expansion blocks (6) are commonly fixedly connected with a rubber sleeve ring (8), the rubber sleeve ring (8) is provided with a guide notch (9), the outside of the rubber sleeve ring (8) is fixedly connected with a liquid-absorbing cotton tube (10), the base (1) is fixedly connected with a fixed block (11), the fixed block (11) is fixedly connected with a displacement mechanism (12), and the displacement mechanism (12) is provided with a stent drug sprayer (13).
2. The device for spraying drugs on the surface of an intracardiac stent according to claim 1, characterized in that: The cross section of the expansion block (6) is in the shape of an arc.
3. The device for spraying drugs on the surface of an intracardiac stent according to claim 1, characterized in that: The two ends of the spring (7) are respectively fixedly connected to the adjacent sides of the two expansion blocks (6).
4. The device for spraying drugs on the surface of an intracardiac stent according to claim 1, characterized in that: A protrusion (14) is fixedly connected to one side of the top block (2).
5. The device for spraying drugs on the surface of an intracardiac stent according to claim 4, characterized in that: A scissor-type clamping rod (15) is provided on one side of the protrusion (14).
6. The device for spraying drugs on the surface of an intracardiac stent according to claim 5, characterized in that: The scissor-type clamping rod (15) is located above the two expansion blocks (6).