Artificial valve retrograde implantation guider for aortic valve operation

Abstract

The utility model discloses an artificial valve retrograde implantation guider for an aortic valve operation, which relates to the technical field of medical instruments and comprises a fixing frame, a sliding block is arranged above the fixing frame, a sliding mechanism is arranged between the sliding block and the fixing frame, a mounting plate is arranged on the sliding block, and the mounting plate is connected with the fixing frame. And a plurality of limiting plates are rotationally mounted on the mounting plate, balls are arranged at one ends of the limiting plates, and limiting blocks are arranged on the limiting plates in a sliding mode. The device is reasonable in design structure, the limiting plate, the mounting plate, the balls, the limiting blocks, the fixing shaft and other components are arranged, and the driving mechanism controls the limiting block component to slide on the limiting plate in the working process, so that one end of the limiting plate component rotates around the fixing shaft, and the other end of the limiting plate component drives the balls to move towards the axis of the mounting plate; therefore, the distance between the ball and the axis is changed, puncture of different sizes is limited, and the effect of widening the application range of the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a guide for retrograde placement of artificial valves in aortic valve surgery. Background Art

[0002] When the calcification of the human body's valves or blood vessels is more obvious, especially when the femoral artery is severely calcified and the apex of the heart cannot be operated, an incision can be made on the right side of the chest to expose the aorta, and a puncture can be performed directly on the aorta to perform a heart valve intervention surgery. After the puncture is completed, the valve is released into the valve through a catheter and expanded with a balloon to make the original diseased valve no longer work, thereby promoting the work of the new valve and completing the heart valve intervention surgery.

[0003] Through searching, for example, the puncture needle guide device and the puncture surgical robot device with announcement number: CN219374859U, in the puncture needle guide device and the puncture surgical robot provided by the utility model, a magnetic field is generated by a first magnetic device, and the first spherical shell and the second spherical shell are driven to slide along the extension direction of the first spherical surface and the second spherical surface by controlling the current in the driving coil, so that the posture of the puncture needle installed on the puncture needle mounting structure can be adjusted to constrain the puncture angle. Compared with the prior art in which the posture of the puncture needle is adjusted by electric, pneumatic drive and transmission mechanism, the overall device does not require components such as motors and transmission mechanisms, and the overall structure is simpler, reducing the volume and cost of the puncture needle guide device.

[0004] The guide holes on existing puncture devices are generally of fixed size, but since the sizes of punctures vary, the guide device can only be used for punctures of the same size. When the size of the guide hole is larger than the puncture, the puncture is easily unstable, thus limiting the scope of application of the guide device. To this end, we provide a guide for retrograde placement of artificial valves in aortic valve surgery to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a guide for retrograde placement of an artificial valve in aortic valve surgery.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide for retrograde insertion of an artificial valve in aortic valve surgery, comprising a fixing frame, a slider is arranged above the fixing frame, a sliding mechanism is arranged between the slider and the fixing frame, a mounting plate is arranged on the slider, a plurality of limit plates are rotatably mounted on the mounting plate, one end of the limit plate is rotatably connected to the mounting plate through a fixed shaft, one end of the limit plate is arranged with a ball bearing, a limit block is slidably arranged on the limit plate, and a driving mechanism is arranged between the limit block and the mounting plate.

[0009] Furthermore, the driving mechanism includes a driving ring, the driving ring is rotatably mounted on the mounting plate, the limiting block is rotatably connected to the driving ring, and a fixing member is provided between one side of the driving ring and the mounting plate.

[0010] Furthermore, the fixing member includes a fixing rod, which is slidably mounted on the driving ring, a tension spring is arranged between the fixing rod and the driving ring, a fixing plate is arranged between the fixing rod and the driving ring, the fixing plate is fixedly mounted on the mounting plate, and the fixing rod and the fixing plate are clamped together.

[0011] Furthermore, the sliding mechanism includes a rotating shaft, which is rotatably mounted on the fixing frame and is slidably connected to the sliding block.

[0012] Furthermore, a guide plate is provided on the rotating shaft, a slide groove is provided on the sliding block, the guide plate and the slide groove are slidably arranged, an adjustment cap is provided at one end of the rotating shaft, and the adjustment cap is frictionally arranged with the fixing frame.

[0013] Furthermore, an adjusting rod is arranged on the slider on one side of the guide plate, the adjusting rod is threadedly connected to the slider, and one end of the adjusting rod is frictionally arranged with the guide plate.

[0014] Furthermore, two mounting plates are provided, the two mounting plates are installed at two ends of the sliding block, and protective covers are provided on the mounting plates.

[0015] 3) Beneficial effects:

[0016] Compared with the prior art, the guide for retrograde placement of artificial valves in aortic valve surgery has the following beneficial effects:

[0017] 1. The utility model is provided with a limit plate, a mounting plate, a ball, a limit block, a limit block, a fixed shaft and other components. During operation, the limit block component is controlled by a driving mechanism to slide on the limit plate, so that one end of the limit plate component rotates around the fixed shaft, and the other end drives the ball to move toward the axis of the mounting plate, thereby changing the distance between the ball and the axis, realizing the effect of limiting punctures of different sizes, and achieving the effect of improving the application range of the device.

[0018] 2. The utility model is provided with an adjusting cap, an adjusting rod, a driving ring, a fixing rod, a fixing plate and other components. During operation, the adjusting cap component cooperates with the adjusting rod to control the rotation of the adjusting rod component, thereby changing the friction between the slider and the rotating shaft, so that the resistance of the slider when moving on the rotation is changed. The adjusting cap is rotated to change the resistance between the rotating shaft and the fixing frame, and the driving ring component, the fixing rod component and the fixing plate component cooperate with each other to fix the rotation angle of the driving ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the slider of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection of the limit plate of the utility model.

[0023] In the figure: 1. fixed frame; 2. rotating shaft; 3. guide plate; 4. adjusting cap; 5. slider; 6. slide groove; 7. puncture; 8. mounting plate; 9. limit plate; 10. fixed shaft; 11. mounting block; 12. ball bearing; 13. limit block; 14. fixing rod; 15. fixing plate; 16. adjusting rod; 17. protective cover; 18. driving ring. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a guide for retrograde insertion of an artificial valve in aortic valve surgery, comprising a fixing frame 1, a slider 5 is arranged above the fixing frame 1, a sliding mechanism is arranged between the slider 5 and the fixing frame 1, a mounting plate 8 is arranged on the slider 5, a plurality of limit plates 9 are rotatably installed on the mounting plate 8, one end of the limit plate 9 is rotatably connected with the mounting plate 8 through a fixed shaft 10, a ball 12 is arranged at one end of the limit plate 9, the ball 12 is rotatably installed on the limit plate 9 through a mounting block 11, a limit block 13 is slidably arranged on the limit plate 9, a driving mechanism is arranged between the limit block 13 and the mounting plate 8, the limit block 13 on the limit plate 9 is controlled by the driving mechanism to rotate synchronously, so that one end of the limit plate 9 rotates around the fixed shaft 10, and the other end drives the ball 12 to move, and the distance between the ball 12 and the axis of the mounting plate 8 is adjusted, so that different punctures 7 can be clamped.

[0026] The driving mechanism includes a driving ring 18, which is rotatably mounted on the mounting plate 8. The driving ring 18 and the mounting plate 8 are coaxially arranged. The limit block 13 is rotatably connected to the driving ring 18. A fixing part is arranged between one side of the driving ring 18 and the mounting plate 8. The driving ring 18 drives the limit block 13 to rotate synchronously by adjusting the rotation of the driving ring 18 by the staff.

[0027] The fixing part includes a fixing rod 14, which is slidably mounted on the driving ring 18, a tension spring is arranged between the fixing rod 14 and the driving ring 18, a fixing plate 15 is arranged between the fixing rod 14 and the driving ring 18, and the fixing plate 15 is fixedly mounted on the mounting plate 8, and the fixing rod 14 and the fixing plate 15 are clamped together. The staff drives the fixing rod 14 to move and separates it from the fixing plate 15 to release the restriction on the driving ring 18, and then the driving ring 18 can be pushed to rotate by the fixing rod 14, and the position of the driving ring 18 is fixed by the clamping connection between the fixing rod 14 and the fixing plate 15, and the tension spring can achieve the effect of resetting after the fixing rod 14 moves.

[0028] The sliding mechanism comprises a rotating shaft 2 , which is rotatably mounted on a fixing frame 1 , and is slidably connected to a sliding block 5 , so that the moving direction of the sliding block 5 is limited by the rotating shaft 2 .

[0029] A guide plate 3 is provided on the rotating shaft 2, and a slide groove 6 is provided on the slider 5. The guide plate 3 and the slide groove 6 are slidably arranged. An adjusting cap 4 is provided at one end of the rotating shaft 2. The adjusting cap 4 is threadedly connected to the rotating shaft 2. The adjusting cap 4 and the fixing frame 1 are frictionally arranged. The position between the rotating shaft 2 and the slider 5 is limited by the guide plate 3, so that the slider 5 can only slide on the rotating shaft 2 but cannot rotate on the rotating shaft 2. The friction between the slider 5 and the fixing frame 1 is changed by rotating the adjusting cap 4, so that when the slider 5 drives the rotating shaft 2 to rotate, the resistance encountered is different.

[0030] An adjusting rod 16 is arranged on the slider 5 on one side of the guide plate 3. The adjusting rod 16 is threadedly connected to the slider 5. One end of the adjusting rod 16 is frictionally arranged with the guide plate 3. By driving the adjusting rod 16 to rotate, the pressure between one end of the adjusting rod 16 and the guide plate 3 changes, thereby adjusting the friction between the slider 5 and the rotating shaft 2 and the guide plate 3.

[0031] Two mounting plates 8 are provided, and the two mounting plates 8 are installed at both ends of the slider 5 to improve the stability of the puncture 7. A protective cover 17 is provided on the mounting plate 8 to protect the limit plate 9 and other components to avoid collision with external forces.

[0032] Working principle: by passing one end of the puncture 7 through the middle of the mounting plate 8 and the slider 5, and then driving the fixing rod 14 away from the fixing plate 15, the restriction on the position of the driving ring 18 is released, and the driving ring 18 is pushed to rotate on the mounting plate 8 by the fixing rod 14, and the driving ring 18 drives the limit block 13 to slide on the limit plate 9, so that one end of the limit plate 9 rotates around the fixed axis 10, and the other end pushes the ball 12 to move through the mounting block 11, and the ball 12 contacts with the surface of the puncture 7, so as to limit the position of the puncture 7 and prevent the puncture 7 from shaking, and by driving the slider 5 to slide on the rotating shaft 2, the horizontal position of the slider 5 is adjusted, and by driving the slider 5 to drive the rotating shaft 2 to rotate on the fixed frame 1, the guide of the puncture 7 is adjusted.

Claims

1. A guide for retrograde placement of an artificial valve in aortic valve surgery, comprising a fixing frame (1), characterized in that: A slider (5) is arranged above the fixing frame (1), a sliding mechanism is arranged between the slider (5) and the fixing frame (1), a mounting plate (8) is arranged on the slider (5), a plurality of limit plates (9) are rotatably mounted on the mounting plate (8), one end of the limit plate (9) is rotatably connected to the mounting plate (8) via a fixed shaft (10), a ball bearing (12) is arranged at one end of the limit plate (9), a limit block (13) is slidably arranged on the limit plate (9), and a driving mechanism is arranged between the limit block (13) and the mounting plate (8).

2. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 1, characterized in that: The driving mechanism comprises a driving ring (18), the driving ring (18) is rotatably mounted on the mounting plate (8), the limiting block (13) is rotatably connected to the driving ring (18), and a fixing member is provided between one side of the driving ring (18) and the mounting plate (8).

3. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 2, characterized in that: The fixing member comprises a fixing rod (14), the fixing rod (14) is slidably mounted on the driving ring (18), a tension spring is arranged between the fixing rod (14) and the driving ring (18), a fixing plate (15) is arranged between the fixing rod (14) and the driving ring (18), the fixing plate (15) is fixedly mounted on the mounting plate (8), and the fixing rod (14) and the fixing plate (15) are clamped together.

4. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 1, characterized in that: The sliding mechanism comprises a rotating shaft (2), the rotating shaft (2) is rotatably mounted on the fixing frame (1), and the rotating shaft (2) is slidably connected to the sliding block (5).

5. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 4, characterized in that: The rotating shaft (2) is provided with a guide plate (3), the sliding block (5) is provided with a slide groove (6), the guide plate (3) and the slide groove (6) are slidably arranged, and an adjustment cap (4) is provided at one end of the rotating shaft (2), and the adjustment cap (4) and the fixing frame (1) are frictionally arranged.

6. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 5, characterized in that: An adjusting rod (16) is arranged on the slider (5) on one side of the guide plate (3); the adjusting rod (16) is threadedly connected to the slider (5); one end of the adjusting rod (16) is frictionally arranged with the guide plate (3).

7. The guide for retrograde placement of an artificial valve in aortic valve surgery according to claim 1, characterized in that: Two mounting plates (8) are provided, and the two mounting plates (8) are installed at two ends of the sliding block (5). A protective cover (17) is provided on the mounting plates (8).

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