Release device of aortic aneurysm vascular stent

Abstract

The utility model relates to the technical field of medical instruments, and discloses an aortic aneurysm vascular stent releasing device which comprises a sleeve, a suction pipe is slidably connected to the middle of the sleeve, a limiting assembly is arranged between the sleeve and the suction pipe, a guide wire is fixedly connected to the middle of the suction pipe, an expansion sleeve is fixedly connected to the periphery of the suction pipe, and the expansion sleeve is fixedly connected to the periphery of the suction pipe. One end of the expansion sleeve is fixedly connected with an air pipe, the other end of the air pipe penetrates through the suction pipe, one end of the sleeve is fixedly connected with a first fixing plate, and the outer side of the first fixing plate is fixedly connected with a damping rod. According to the suction tube fixing device, the expansion sleeve can be moved out of the sleeve by pushing the second fixing plate, meanwhile, the protruding block can enter the second fixing plate when the second fixing plate moves, the protruding block can enter the groove by rotating the rotating rod and under the action of the damping rod at the moment, then the suction tube can be limited, the labor intensity of medical workers can be reduced, and the working efficiency is improved. Meanwhile, the difficulty of thrombus extraction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a releasing device for an aortic aneurysm vascular stent. Background Art

[0002] With the development of society, food has become more diverse. Long-term and excessive intake of high-fat, high-sugar foods, smoking, alcoholism, and lack of exercise can easily lead to atherosclerosis, which in turn causes thoracic aortic thrombosis. Thoracic aortic endovascular repair is a common treatment for thoracic aortic diseases. This surgical method uses a guide wire to drive the sheath and straw to the location of the vascular lesion, and at the same time, the straw can be pushed out by squeezing it, and the expansion piece on the outside of the straw can be expanded, thereby supporting the straw and sheath. At this time, the negative pressure device can be used to allow the straw to suck out the thrombus. Currently, this surgical method has become the main surgical method for treating thoracic aortic thrombosis.

[0003] Although the prior art can make the expansion member contact with the inner wall of the blood vessel to fix the straw and the sleeve, there are still some shortcomings. After the straw is pushed in, it needs to be supported by medical staff to prevent the straw from moving in the opposite direction. Long-term support will increase the labor intensity of medical staff. At the same time, the operation of the medical staff holding the straw will make it inconvenient for the medical staff to perform other thrombus removal steps, thereby increasing the difficulty of thrombus removal. For this reason, a release device for an aortic aneurysm vascular stent is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a release device for an aortic aneurysm vascular stent, aiming to improve the problem in the prior art that after the suction tube is pushed in, medical staff need to support it. Long-term support will increase the labor intensity of medical staff. At the same time, the operation of the medical staff holding the suction tube will make it inconvenient for the medical staff to perform other thrombus removal steps, thereby increasing the difficulty of thrombus removal.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a release device for an aortic aneurysm vascular stent, comprising a sleeve, a suction tube is slidably connected to the middle part of the sleeve, a limiting component is arranged between the sleeve and the suction tube, a guide wire is fixedly connected to the middle part of the suction tube, an expansion sleeve is fixedly connected to the outer periphery of the suction tube, one end of the expansion sleeve is fixedly connected to a trachea, the other end of the trachea passes through the suction tube, one end of the sleeve is fixedly connected to a fixing plate 1, the outer side of the fixing plate 1 is fixedly connected to a damping rod, the other end of the damping rod is fixedly connected to a fixing plate 2, and the fixing plate 1 is fixedly connected to the outer side of the fixing plate 1. Plate two is fixedly connected to the outer side of the straw, a cam is rotatably connected inside the fixed plate one, a rotating rod is fixedly connected to the side of the cam close to the fixed plate two, a protrusion is fixedly connected to the outer side of the rotating rod, the protrusion is slidably connected to the middle part of the fixed plate two, a groove is provided on the side of the fixed plate two away from the fixed plate one, the protrusion and the groove are plug-fitted, one end of the straw is fixedly connected to a connecting pipe, the other end of the connecting pipe is fixedly connected to a collecting tank, a connecting assembly is provided between the connecting pipe and the collecting tank, and a negative pressure device is fixedly connected to the top of the collecting tank.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly comprises a limiting block, the limiting block is fixedly connected to the outside of the straw, a limiting groove is arranged inside the sleeve, and the limiting block is slidably connected to the middle of the limiting groove.

[0008] As a further description of the above technical solution:

[0009] The connecting assembly includes a connecting plate 1, which is fixedly connected to one end of the suction tube, a connecting plate 2 is provided on a side of the connecting plate 1 close to the collecting tank, the connecting plate 2 is fixedly connected to the outer side of the collecting tank, a positioning block is fixedly connected to the outer side of the connecting plate 2, the positioning block and the connecting plate 1 are plugged together, a compression spring is fixedly connected to the inside of the connecting plate 1, a clamping block is fixedly connected to the other end of the compression spring, the clamping block is in contact with the positioning block, a clamping slot is provided in the middle of the positioning block, the clamping block and the clamping slot are plugged together, and a disassembly assembly is slidably connected to the middle of the connecting plate 1.

[0010] As a further description of the above technical solution:

[0011] The disassembly assembly comprises a pressure rod, the bottom end of which is fixedly connected to a movable plate, the outer side of which is fixedly connected to a pull rope, and the other end of the pull rope is fixedly connected to a side of the clamping block close to the compression spring.

[0012] As a further description of the above technical solution:

[0013] A movable groove is provided in the middle of the second fixing plate, and the protrusion is slidably connected to the middle of the movable groove.

[0014] As a further description of the above technical solution:

[0015] A positioning groove is provided in the middle of the first connecting plate, and the positioning block is plug-fitted into the positioning groove.

[0016] As a further description of the above technical solution:

[0017] A partition is slidably connected inside the first connecting plate, and the partition is fixedly connected between the compression spring and the clamping block.

[0018] As a further description of the above technical solution:

[0019] The interior of the connecting plate 1 is rotatably connected with a roller, and the pull rope and the roller are in rolling contact.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the damping rod can be compressed by pushing the fixing plate 2, and the expansion sleeve can be moved out of the middle part of the casing. At this time, the expansion sleeve is expanded by an external air pump to support the casing and the straw. When the fixing block 2 moves, the protrusion can enter the middle part of the fixing plate 2. At this time, the fixing plate 2 is loosened by rotating the rotating rod. At this time, the protrusion can be inserted into the groove through the damping rod, and then the fixing plate 2 can be limited. There is no need for medical staff to support the straw, thereby reducing the labor intensity of medical staff and reducing the difficulty of thrombus removal.

[0022] 2. In the utility model, by inserting the positioning block into the connecting plate, the card block can compress the compression spring. When the card slot moves to the original position of the card block, the card block and the card slot can be connected by the compression spring. At this time, the connecting tube and the collecting tank can be connected. By pressing the pressure rod, the movable plate can pull the pull rope, and then the card block and the card slot can be separated. At this time, the connecting tube and the collecting tank can be separated, thereby increasing the connection speed of the connecting tube and the collecting tank. After use, the connecting tube and the structure of the connecting tube away from the collecting tank can be removed, thereby facilitating the disinfection of the device. At the same time, another set of devices can be quickly connected to the collecting tank during disinfection, thereby saving waiting time and improving the efficiency of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of a release device for an aortic aneurysm vascular stent proposed by the utility model;

[0024] Figure 2 This is a structural schematic diagram of a limiting component of a release device for an aortic aneurysm vascular stent proposed by the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of a groove of a releasing device for an aortic aneurysm vascular stent proposed by the utility model;

[0026] Figure 4 This is a schematic structural diagram of a cam of a release device for an aortic aneurysm vascular stent proposed by the utility model;

[0027] Figure 5 This is a structural schematic diagram of a clamping slot of a release device for an aortic aneurysm vascular stent proposed by the utility model;

[0028] Figure 6 The utility model is a schematic diagram of the structure of a clamping block of a releasing device for an aortic aneurysm vascular stent.

[0029] Legend:

[0030] 1. Casing; 2. Suction tube; 3. Guide wire; 4. Expansion sleeve; 5. Trachea; 6. Limit block; 7. Fixed plate 1; 8. Fixed plate 2; 9. Damping rod; 10. Cam; 12. Turn bar; 13. Bump; 14. Groove; 15. Connecting pipe; 16. Collecting tank; 17. Negative pressure device; 18. Connecting plate 1; 19. Connecting plate 2; 20. Positioning block; 21. Compression spring; 22. Block; 23. Slot; 24. Pressure rod; 25. Movable plate; 26. Pull rope; 27. Limit slot; 28. Movable slot; 29. ​​Positioning slot. DETAILED DESCRIPTION

[0031] 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 the embodiments. 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.

[0032] Reference Figure 1-Figure 4The utility model provides an embodiment: a release device for an aortic aneurysm vascular stent, comprising a sleeve 1, a suction pipe 2 is slidably connected to the middle part of the sleeve 1, a limiting component is arranged between the sleeve 1 and the suction pipe 2, and the limiting component can prevent the suction pipe 2 from rotating when moving, a guide wire 3 is fixedly connected to the middle part of the suction pipe 2, an expansion sleeve 4 is fixedly connected to the outer periphery of the suction pipe 2, one end of the expansion sleeve 4 is fixedly connected to a trachea 5, and the other end of the trachea 5 passes through the suction pipe 2, one end of the sleeve 1 is fixedly connected to a fixing plate 7, the outer side of the fixing plate 7 is fixedly connected to a damping rod 9, and the other end of the damping rod 9 is fixedly connected to a fixing plate 2 8, and the fixing plate 2 8 is fixedly connected to the outer side of the suction pipe 2, and the fixing plate 2 8 can be pressed to make the fixing plate 2 8 drive the suction pipe 2 to move at the same time, so that the expansion sleeve 4 can be extended, and at this time, the gas is allowed to enter the trachea 5 and be transmitted to the expansion sleeve 4 through an external air pump, and at this time, the expansion sleeve 4 can be expanded, and then the sleeve 1 and the suction pipe 2 can be supported.

[0033] Reference Figure 2-Figure 4 The interior of the fixed plate 1 7 is rotatably connected with a cam 10, a rotating rod 12 is fixedly connected to the side of the cam 10 close to the fixed plate 2 8, a protrusion 13 is fixedly connected to the outside of the rotating rod 12, the protrusion 13 is slidably connected to the middle of the fixed plate 2 8, a movable groove 28 is provided in the middle of the fixed plate 2 8, the protrusion 13 is slidably connected to the middle of the movable groove 28, the protrusion 13 can be limited by the movable groove 28, and the protrusion 13 can pass through the fixed plate 2 8 while pressing the fixed plate 2 8, and a groove is provided on the side of the fixed plate 2 8 away from the fixed plate 1 7 14, the protrusion 13 and the groove 14 are plugged together. After the protrusion 13 passes through the fixing plate 28, the protrusion 13 is rotated and then the fixing plate 28 is loosened. At this time, under the action of the damping rod 9, the fixing plate 28 can be squeezed and moved in the opposite direction. While the fixing plate 28 moves in the opposite direction, the protrusion 13 can enter the groove 14, and then the fixing plate 28 can be limited. At this time, the current position of the straw 2 can be fixed, and the medical staff does not need to continuously squeeze the straw 2, which can reduce the labor intensity of the medical staff and reduce the difficulty of thrombus removal.

[0034] Reference Figure 2-Figure 4 One end of the suction tube 2 is fixedly connected to a connecting tube 15, and the other end of the connecting tube 15 is fixedly connected to a collecting tank 16. A connecting assembly is provided between the connecting tube 15 and the collecting tank 16. A negative pressure device 17 is fixedly connected to the top of the collecting tank 16. By driving the negative pressure device 17, the connecting tube 15 can suck out the thrombus through the suction tube 2. At the same time, the sucked thrombus can be stored under the action of the collecting tank 16, thereby avoiding impact on the environment and uniformly treating the thrombus.

[0035] Reference Figure 2The limiting assembly includes a limiting block 6, which is fixedly connected to the outside of the straw 2. A limiting groove 27 is provided inside the sleeve 1. The limiting block 6 is slidably connected to the middle of the limiting groove 27. The limiting groove 27 can be used to limit the limiting block 6, thereby limiting the straw 2, thereby preventing the straw 2 from rotating when moving, thereby reducing the influence of the guide wire 3 on the blood vessel.

[0036] Reference Figure 5 and Figure 6 The connecting assembly includes a connecting plate 18, which is fixedly connected to one end of the suction tube 2. A connecting plate 2 19 is provided on one side of the connecting plate 18 close to the collecting tank 16. The connecting plate 2 19 is fixedly connected to the outer side of the collecting tank 16. A positioning block 20 is fixedly connected to the outer side of the connecting plate 2 19. The positioning block 20 and the connecting plate 18 are plugged together. A positioning groove 29 is provided in the middle of the connecting plate 18. The positioning block 20 and the positioning groove 29 are plugged together. The positioning block 20 can be limited by the positioning groove 29, so that the connecting plate 18 and the connecting plate 2 19 can be quickly aligned and connected, which can improve the connection speed between the connecting pipe 15 and the collecting tank 16.

[0037] Reference Figure 5 and Figure 6 A compression spring 21 is fixedly connected to the interior of the connecting plate 18, and a card block 22 is fixedly connected to the other end of the compression spring 21. The card block 22 contacts the positioning block 20. A card slot 23 is provided in the middle of the positioning block 20. The card block 22 and the card slot 23 are plugged together. When the positioning block 20 enters the positioning slot 29, it will contact the card block 22. At this time, the card block 22 can be squeezed and moved. When the card block 22 moves, the compression spring 21 can be compressed and received in the connecting plate 18. At this time, the positioning block 20 can be completely entered into the connecting plate 18. When the card slot 23 moves When the block 22 is in its original position and the block 22 is squeezed by an external force, the block 22 can be bounced into the slot 23 by the compression spring 21, so that the connecting pipe 15 and the collecting tank 16 can be connected. The interior of the connecting plate 18 is slidably connected with a partition, and the partition is fixedly connected between the compression spring 21 and the block 22. The block 22 can be limited by the partition, so as to prevent the block 22 from tilting during movement, and at the same time, the compression spring 21 can be prevented from being deformed and damaged by the tilting and squeezing of the block 22. The middle part of the connecting plate 18 is slidably connected with a disassembly component.

[0038] Reference Figure 6The disassembly assembly includes a pressure rod 24, the bottom end of which is fixedly connected to a movable plate 25, and the outer side of the movable plate 25 is fixedly connected to a pull rope 26, and the other end of the pull rope 26 is fixedly connected to a side of the card block 22 close to the compression spring 21. By pressing the pressure rod 24, the movable plate 25 can be moved downward, and at this time, one end of the pull rope 26 can be pulled to move, and the card block 22 can be pulled out from the middle of the card slot 23 by the pull rope 26, so that the connecting pipe 15 and the collecting tank 16 can be separated. The internal rotation of the connecting plate 18 is connected to a roller, and the pull rope 26 and the roller are rollingly abutted. The pull rope 26 can be limited by the roller, so as to prevent the pull rope 26 from rubbing against the connecting plate 18 at the corner, thereby improving the service life of the pull rope 26.

[0039] Working principle: When in use, the expansion sleeve 4 can be moved out of the middle of the sleeve 1 by pushing the fixing plate 2 8 and under the action of the limit block 6. At this time, the air pipe 5 can send air into the expansion sleeve 4 under the action of the external air pump. At this time, the sleeve 1 and the straw 2 can be supported by the expansion sleeve 4. At the same time, the damping rod 9 can be compressed when the fixing plate 2 8 moves, and the protrusion 13 can enter the middle of the fixing plate 2 8. At this time, the fixing plate 2 8 can be loosened by rotating the rotating rod 12 and the fixing plate 2 8 can be squeezed under the action of the damping rod 9. At this time, the protrusion 13 will be inserted into the groove 14, and then the fixing plate 2 8 can be limited, and the medical staff does not need to support the straw 2;

[0040] Among them, by inserting the positioning block 20 into the connecting plate 18, the positioning block 20 will squeeze the card block 22 while entering, and the card block 22 will compress the compression spring 21. At this time, the positioning block 20 can completely enter the middle part of the connecting plate 18. When the slot 23 moves to the original position of the card block 22, the card block 22 can be bounced into the slot 23 under the action of the compression spring 21, so that the connecting pipe 15 and the collecting tank 16 can be connected. By pressing the pressure rod 24, the movable plate 25 can be moved downward. When the movable plate 25 moves, the card block 22 and the slot 23 can be separated by the pull rope 26. At this time, the connecting pipe 15 and the collecting tank 16 can be separated, so as to increase the connection speed of the connecting pipe 15 and the collecting tank 16. After use, the connecting pipe 15 and the structure of the connecting pipe 15 away from the collecting tank 16 can be removed, so as to facilitate the disinfection of the device. At the same time, another set of devices can be quickly connected to the collecting tank 16 during disinfection, so as to save waiting time and improve the efficiency of treatment.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for releasing an aortic aneurysm vascular stent, comprising a sleeve (1), characterized in that: The middle part of the sleeve (1) is slidably connected to a suction tube (2), a limiting assembly is provided between the sleeve (1) and the suction tube (2), the middle part of the suction tube (2) is fixedly connected to a guide wire (3), the outer periphery of the suction tube (2) is fixedly connected to an expansion sleeve (4), one end of the expansion sleeve (4) is fixedly connected to an air tube (5), the other end of the air tube (5) passes through the suction tube (2), one end of the sleeve (1) is fixedly connected to a fixing plate 1 (7), the outer side of the fixing plate 1 (7) is fixedly connected to a damping rod (9), the other end of the damping rod (9) is fixedly connected to a fixing plate 2 (8), the fixing plate 2 (8) is fixedly connected to the outer side of the suction tube (2), and the interior of the fixing plate 1 (7) is rotatably connected to a cam The cam (10) is fixedly connected to a rotating rod (12) on one side close to the second fixing plate (8), a protrusion (13) is fixedly connected to the outer side of the rotating rod (12), the protrusion (13) is slidably connected to the middle part of the second fixing plate (8), a groove (14) is provided on the side of the second fixing plate (8) away from the first fixing plate (7), the protrusion (13) and the groove (14) are plug-fitted, one end of the suction tube (2) is fixedly connected to a connecting tube (15), the other end of the connecting tube (15) is fixedly connected to a collecting tank (16), a connecting assembly is provided between the connecting tube (15) and the collecting tank (16), and a negative pressure device (17) is fixedly connected to the top of the collecting tank (16).

2. The device for releasing an aortic aneurysm vascular stent according to claim 1, characterized in that: The limiting assembly comprises a limiting block (6), wherein the limiting block (6) is fixedly connected to the outside of the straw (2), a limiting groove (27) is provided inside the sleeve (1), and the limiting block (6) is slidably connected to the middle of the limiting groove (27).

3. The device for releasing an aortic aneurysm vascular stent according to claim 1, characterized in that: The connecting assembly comprises a connecting plate 1 (18), wherein the connecting plate 1 (18) is fixedly connected to one end of the suction tube (2); a connecting plate 2 (19) is arranged on a side of the connecting plate 1 (18) close to the collecting tank (16); the connecting plate 2 (19) is fixedly connected to the outer side of the collecting tank (16); a positioning block (20) is fixedly connected to the outer side of the connecting plate 2 (19); the positioning block (20) and the connecting plate 1 (18) are plug-fitted; a compression spring (21) is fixedly connected inside the connecting plate 1 (18); a clamping block (22) is fixedly connected to the other end of the compression spring (21); the clamping block (22) and the positioning block (20) are in contact; a clamping groove (23) is provided in the middle of the positioning block (20); the clamping block (22) and the clamping groove (23) are plug-fitted; and a disassembly assembly is slidably connected to the middle of the connecting plate 1 (18).

4. The device for releasing an aortic aneurysm vascular stent according to claim 3, characterized in that: The disassembly assembly comprises a pressure rod (24), the bottom end of the pressure rod (24) is fixedly connected to a movable plate (25), the outer side of the movable plate (25) is fixedly connected to a pull rope (26), and the other end of the pull rope (26) is fixedly connected to a side of the clamping block (22) close to the compression spring (21).

5. The device for releasing an aortic aneurysm vascular stent according to claim 1, characterized in that: A movable groove (28) is provided in the middle of the second fixing plate (8), and the protrusion (13) is slidably connected to the middle of the movable groove (28).

6. The device for releasing an aortic aneurysm vascular stent according to claim 3, characterized in that: A positioning groove (29) is provided in the middle of the connecting plate 1 (18), and the positioning block (20) and the positioning groove (29) are plug-fitted.

7. The device for releasing an aortic aneurysm vascular stent according to claim 3, characterized in that: A partition is slidably connected inside the first connecting plate (18), and the partition is fixedly connected between the compression spring (21) and the clamping block (22).

8. The device for releasing an aortic aneurysm vascular stent according to claim 4, characterized in that: The connecting plate 1 (18) is internally rotatably connected with a roller, and the pull rope (26) and the roller are in rolling contact.

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