Valve stent heat treatment shaping tool

Abstract

The utility model discloses a valve stent heat treatment shaping tool, which comprises a valve stent main body and a turntable, the rear side of the turntable is rotatably connected with a fixing plate, the inner middle part of the turntable is fixedly connected with a connecting rotating rod, one side of the connecting rotating rod penetrates through a supporting plate, the rear side of the fixing plate is fixedly connected with a rear side plate, and the rear side plate is fixedly connected with a fixing plate. A plurality of arc-shaped grooves are formed in the rotating disc, connecting shafts are arranged in the arc-shaped grooves in a sliding fit mode, telescopic rods are fixedly connected to one ends of the connecting shafts, supporting arc-shaped blocks are fixedly connected to the outer sides of the telescopic rods, and the number of the telescopic rods, the number of the connecting shafts and the number of the arc-shaped grooves are all five. And a valve stent main body is supported outside the supporting arc-shaped block. By arranging the bolt rod, the supporting spring and the rotating rod, the bolt rod and the connecting rotating rod are matched in an inserted mode through elastic supporting of the supporting spring on the inner side of the bolt rod, the locking effect on the connecting rotating rod is achieved, and the rotating rod can be fixed to limit the rotating disc so that rotating operation can not be conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stent shaping tooling, in particular to a valve stent heat treatment shaping tooling. Background Art

[0002] With the aging population and the increasing incidence of valvular heart disease, transcatheter heart valve replacement surgery is becoming increasingly popular. Mainstream heart valve stents are divided into two types: self-expanding and balloon-expanding. Self-expanding valve stents are made of the shape-memory material nickel-titanium alloy. Nickel-titanium alloy tubing with a diameter of several millimeters is laser-cut into stents, which then undergo multiple heat treatments to gradually expand to a fixed radial size before the final valve stent is manufactured.

[0003] The valve stent in the existing technology needs to be shaped during the heat treatment process to maintain a specified size to prevent deformation due to thermal expansion and contraction during the molding process. Traditional methods can only support fixed sizes and are not easy to adjust, resulting in limitations during use and lack of adjustment. Utility Model Content

[0004] The purpose of the utility model is to provide a valve stent heat treatment shaping tooling, wherein the knob is rotated to drive the connecting rotating rod to rotate, and the turntable can be rotated after the rotation. Since a plurality of arc grooves are provided inside the turntable, the connecting shaft can be expanded around the arc grooves. Since the position of the fixed plate is fixed and the telescopic rod is restricted to slide inside the fixed plate, the outer supporting arc block of the telescopic rod can be expanded, thereby facilitating the support of the valve stent main body.

[0005] To achieve the above-mentioned purpose, a valve stent heat treatment shaping tool is provided, comprising: a valve stent body and a turntable, the rear side of the turntable is rotatably connected to a fixed plate, the interior of the turntable is fixedly connected to a connecting rotating rod, one side of the connecting rotating rod is penetrated by a support plate, the rear side of the fixed plate is fixedly connected to a rear side plate, a plurality of arc grooves are opened inside the turntable, the interior of the arc groove is slidably fitted with a connecting shaft, one end of the connecting shaft is fixedly connected to a telescopic rod, the outer side of the telescopic rod is fixedly connected to a supporting arc block, the number of the telescopic rod, the connecting shaft and the arc groove are all five, and the outside of the supporting arc block supports the valve stent body.

[0006] The connecting rotating rod passes through the outer side of the supporting plate and is provided with a plurality of latch holes. A latch rod passes through the upper outer side of the supporting plate, and the latch rod is plugged and matched with the latch hole.

[0007] One end of the connecting rod is fixedly connected with a knob.

[0008] The inner wall of the support plate is fixedly connected with a support spring, and the support spring is in abutment with the end of the latch rod.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. The utility model is provided with a connecting rotating rod, a rotating disk, a telescopic rod, an arc groove and a supporting arc block. When the knob is rotated, the connecting rotating rod is driven to rotate, and the rotating disk can be rotated after the rotation. Since a plurality of arc grooves are provided inside the rotating disk, the connecting shaft can be expanded around the arc grooves. Since the position of the fixed plate is fixed, the telescopic rod is restricted to slide inside the fixed plate, and the outer supporting arc block of the telescopic rod can be expanded, which is convenient for supporting the valve stent body. Through the arrangement of the arc groove and the supporting arc block, different diameters of the valve stent can be supported, thereby improving the supporting effect.

[0011] 2. The utility model sets a latch rod, a support spring and a rotating rod. The latch rod and the connecting rotating rod are plugged together by the elastic support of the support spring inside the latch rod, so as to achieve the locking effect of the connecting rotating rod, and can fix the rotating rod to limit the turntable and prevent it from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a top view of a valve stent main body of a valve stent heat treatment shaping tooling according to the utility model.

[0013] Figure 2 This is a three-dimensional structural diagram of a supporting arc block of a valve stent heat treatment shaping tooling of the utility model.

[0014] Figure 3 This is a rear stereoscopic view of a supporting arc block of a valve stent heat treatment shaping tooling according to the utility model.

[0015] Figure 4 This is an enlarged view of the latch rod structure of a valve stent heat treatment shaping tooling of the utility model.

[0016] In the figure: 1. Valve stent body; 2. Support arc block; 3. Arc groove; 4. Knob; 5. Support plate; 6. Latch rod; 7. Connecting rotating rod; 8. Connecting shaft; 9. Fixed plate; 10. Telescopic rod; 11. Support spring; 12. Turntable. DETAILED DESCRIPTION

[0017] See also Figure 1-4The utility model provides a valve stent heat treatment shaping tool, comprising: a valve stent body 1 and a turntable 12, the rear side of the turntable 12 is rotatably connected to a fixing plate 9, by sleeved on the outside of the supporting arc block 2, and then connected to the rear side plate through the fixing plate 9 at the rear end, the position of the fixing plate 9 can be fixed, the interior of the turntable 12 is fixedly connected to a connecting rod 7, one side of the connecting rod 7 passes through a support plate 5, the rear side of the fixing plate 9 is fixedly connected to the rear side plate, the interior of the turntable 12 is provided with a plurality of arc grooves 3, the interior of the turntable 12 is provided with a plurality of arc grooves 3, and the interior of the turntable 12 is provided with a plurality of arc grooves 3. It is provided with a plurality of arc-shaped grooves 3, which can expand the connecting shaft 8 around the arc-shaped groove 3. The internal sliding of the arc-shaped groove 3 is matched with the connecting shaft 8. One end of the connecting shaft 8 is fixedly connected to the telescopic rod 10. The position of the fixed plate 9 is fixed. The telescopic rod 10 is limited to slide inside the fixed plate 9, so that the outer supporting arc block 2 of the telescopic rod 10 can be expanded, which is convenient for supporting the valve stent body 1. The outer side of the telescopic rod 10 is fixedly connected to the supporting arc block 2. The number of telescopic rods 10, connecting shafts 8 and arc-shaped grooves 3 are all five, and the outer side of the supporting arc block 2 supports the valve stent body 1.

[0018] The connecting rotating rod 7 passes through the outer side of the support plate 5 and is provided with a plurality of latch holes. A latch rod 6 passes through the upper outer side of the support plate 5. The latch rod 6 is pulled outward to disengage the connecting rotating rod 7. The latch rod 6 and the latch hole are plugged into each other. One end of the connecting rotating rod 7 is fixedly connected to the knob 4. When the knob 4 is rotated, the connecting rotating rod 7 is driven to rotate. After rotation, the turntable 12 can be rotated. The inner wall of the support plate 5 is fixedly connected to the support spring 11. The support spring 11 on the inner side of the latch rod 6 is elastically supported, and the latch rod 6 and the connecting rotating rod 7 are plugged into each other to achieve the locking effect of the connecting rotating rod 7. The support spring 11 and the end of the latch rod 6 are in contact with each other.

[0019] When in use, first, the valve stent body 1 after production is sleeved on the outside of the supporting arc block 2, and then connected through the rear end fixing plate 9 and the rear side plate, so as to fix the position of the fixing plate 9. After the position is fixed, the knob 4 is rotated, and the latch rod 6 is pulled outward to disengage the connecting rotating rod 7 before rotation. Then, the knob 4 is rotated to drive the connecting rotating rod 7 to rotate. After rotation, the turntable 12 can be rotated. Since a number of arc grooves 3 are provided inside the turntable 12, the connecting shaft 8 can be expanded around the arc groove 3. Since the position of the fixing plate 9 is fixed, the telescopic rod 10 is restricted to slide inside the fixing plate 9, and the outer support arc block 2 of the telescopic rod 10 can be expanded, which is convenient for supporting the valve stent body 1. Then, the latch rod 6 and the connecting rotating rod 7 are plugged and matched through the elastic support of the inner support spring 11 of the latch rod 6 to achieve the locking effect of the connecting rotating rod 7.

Claims

1. A valve stent heat treatment shaping tool, characterized in that: The invention comprises a valve support body (1) and a turntable (12), wherein the rear side of the turntable (12) is rotatably connected to a fixed plate (9), the middle of the interior of the turntable (12) is fixedly connected to a connecting rotating rod (7), one side of the connecting rotating rod (7) is penetrated by a support plate (5), the rear side of the fixed plate (9) is fixedly connected to a rear side plate, a plurality of arc grooves (3) are provided inside the turntable (12), the interior of the arc groove (3) is slidably fitted with a connecting shaft (8), one end of the connecting shaft (8) is fixedly connected to a telescopic rod (10), the outer side of the telescopic rod (10) is fixedly connected to a supporting arc block (2), the number of the telescopic rod (10), the connecting shaft (8) and the arc groove (3) are all five, and the outer side of the supporting arc block (2) supports the valve support body (1).

2. The valve stent heat treatment shaping tool according to claim 1, characterized in that: The connecting rotating rod (7) passes through the outer side of the support plate (5) and is provided with a plurality of latch holes. A latch rod (6) passes through the upper side of the outer side of the support plate (5), and the latch rod (6) is plugged into and fitted with the latch holes.

3. The valve stent heat treatment shaping tool according to claim 1, characterized in that: One end of the connecting rotating rod (7) is fixedly connected to a knob (4).

4. The valve stent heat treatment shaping tool according to claim 1, characterized in that: A support spring (11) is fixedly connected to the inner wall of the support plate (5), and the support spring (11) and the end of the latch rod (6) are in abutment with each other.

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