Shaping device and processing method of spherical bracket

Abstract

The present application relates to a shaping device and a processing method for a spherical bracket, wherein the shaping device is used to shape a tubular bracket into a spherical bracket, wherein the tubular bracket includes a tubular body and a plurality of support rods connected to each other, and the shaping device includes a positioning rod for fixing the tubular body, a spherical core connected to one end of the positioning rod, and a connecting portion covering the outer peripheral wall of the spherical core; the outer peripheral wall of the connecting portion is provided with a plurality of positioning grooves extending along its axial direction, and the plurality of positioning grooves are arranged around the axis of the positioning rod at circumferential intervals, and the plurality of positioning grooves are used to respectively accommodate a plurality of support rods to shape the plurality of support rods. The shaping device of the present application can solve the problem that the spherical bracket is easily offset during the shaping process, resulting in a low qualified rate and a non-forming state, and the spherical bracket obtained by shaping has a stable shape and structure, a good spherical shape, and a high qualified rate.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a molding device and a processing method of a spherical bracket. Background Art

[0002] Catheter ablation has gradually become one of the important means of treating atrial fibrillation. Catheter ablation is to deliver the catheter to the vicinity of the atrial lesion, use ablation energy to ablate the atrial lesion, perforate the cells of the lesion, and make the cell contents flow out and die, thereby achieving the purpose of treatment.

[0003] The key to achieving ablation through catheter ablation is to place the stent at the distal end of the catheter close to the atrial lesion and use the energy of short-term, high-voltage pulses to selectively remove the myocardial cells that cause atrial fibrillation. The spherical stent has a stable structure and good ablation effect, but there are relatively few spherical stents on the market. This is because in the process of shaping into a spherical stent, the spherical stent is prone to breakage, low pass rate, easy displacement during shaping, and the stent is not shaped into a spherical shape. Summary of the invention

[0004] The purpose of the present application is to provide a shaping device and a processing method for a spherical bracket, which solve the problems that the spherical bracket is easily offset during the shaping process, the qualified rate of the spherical bracket obtained by shaping is low, and the spherical bracket is not spherical.

[0005] On the one hand, the present application provides a shaping device, which is used to shape a tubular bracket into a spherical bracket, the tubular bracket includes a tubular body and a plurality of support rods connected to each other, the shaping device includes a positioning rod for fixing the tubular body, a spherical core connected to one end of the positioning rod, and a connecting portion covering the outer peripheral wall of the spherical core; the outer peripheral wall of the connecting portion is provided with a plurality of positioning grooves extending along its axial direction, the plurality of positioning grooves are arranged around the axis of the positioning rod at circumferential intervals, and the plurality of positioning grooves are used to respectively accommodate the plurality of support rods so as to shape the plurality of support rods.

[0006] On the other hand, the present application also provides a method for processing a spherical bracket, which includes the following steps: fixedly sleeve the tubular body of the tubular bracket on the positioning rod of the above-mentioned shaping device, and the multiple support rods of the tubular bracket are respectively accommodated in the multiple positioning grooves of the shaping device; the first covering member and the second covering member of the shaping device clamp the grid structure and the multiple support rods of the tubular bracket and assemble them into a whole; heat the whole assembled from the shaping device and the tubular bracket, so that the tubular bracket is shaped into a spherical bracket by heating.

[0007] In the shaping device of the present application, the shaping device can shape the tubular bracket into a spherical bracket, and the spherical bracket after shaping is spherical. Wherein, the shaping device includes a spherical core, a positioning rod and a connecting part, and the tubular bracket includes a tube body and a plurality of support rods connected to the tube body. The spherical core is fixedly connected to one end of the positioning rod, the spherical core is spherical, the axis of the positioning rod passes through the geometric center of the spherical core, the connecting part covers the outer peripheral wall of the spherical core, and the outer peripheral wall of the connecting part is provided with a plurality of positioning grooves extending along its axial direction, and the plurality of positioning grooves are arranged around the axis of the positioning rod at circumferential intervals. During the shaping process, the plurality of support rods are fixed relative to the plurality of positioning grooves, and the tube body and the positioning rod are fixedly connected, thereby avoiding circumferential offset and axial displacement of the plurality of support rods. After shaping, the spherical bracket has a stable shape and structure, a good spherical shape, and a high pass rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 It is a structural schematic diagram of a shaping device provided in one embodiment of the present application.

[0010] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the positioning device positioning the tubular support.

[0011] Figure 3 It is a schematic diagram of the three-dimensional structure of a pipe provided in one embodiment of the present application.

[0012] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional structure of the tubular bracket obtained by processing the pipe in.

[0013] Figure 5 yes Figure 2 Schematic diagram of the structure in which the tubular bracket is formed into a spherical bracket.

[0014] Figure 6 It is a schematic diagram of the three-dimensional structure decomposition of a tubular bracket installed on the shaping device provided in the second embodiment of the present application.

[0015] Figure 7 It is a three-dimensional structural schematic diagram of a tubular bracket installed on a shaping device provided in the third embodiment of the present application.

[0016] Figure 8 yes Figure 7 Schematic diagram of the three-dimensional structure decomposition of the shaping device.

[0017] Fig. 9 It is a schematic diagram of the three-dimensional structure decomposition of a tubular bracket installed on a shaping device provided in the fourth embodiment of the present application.

[0018] Fig.10 yes Fig. 9 An enlarged view of the three-dimensional structure of the shaping device and the fixing parts.

[0019] Fig.11 yes Fig.10 Schematic diagram of the three-dimensional structure of the fixing parts.

[0020] Fig.12 yes Fig. 9 Schematic diagram of the three-dimensional structure of the tubular bracket being formed into a spherical bracket.

[0021] The following are the descriptions of the reference numerals:

[0022] 100-forming device; 11-positioning rod; 112-jack; 12-core; 123-positioning hole; 124-first hemisphere; 125-second hemisphere; 13-connecting part; 131-positioning groove; 133-accommodating groove; 14-first cover piece; 144-first mounting hole; 146-first connecting plate; 1461-positioning convex strip; 147-second through hole; 15-second cover piece; 152-through hole; 153-second groove; 154-second mounting hole; 156-second Connecting plate; 1561-connecting groove; 16-limiting piece; 161-through hole; 163-limiting groove; 17-fastener; 18-fixing piece; 182-third through hole; 184-bump; 185-avoiding groove; 21-tube body; 212-locking hole; 23-support rod; 231-reinforcement rib; 232-shaping part; 233-positioning part; 25-grid structure; 251-connecting rod; 252-mesh; 200a-tubular bracket; 200b-spherical bracket; 201-tube. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] The following descriptions of the embodiments are made with reference to the attached drawings to illustrate specific implementations of the present application. Directional terms mentioned in the present application, such as "top", "bottom", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and should not be understood as a limitation on the present application.

[0025] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be an internal connection between two elements.

[0026] Axial refers to the direction of the central axis of the device, radial refers to the direction perpendicular to the axial direction and where the radius or diameter is located, and circumferential refers to the direction perpendicular to and surrounding the axial direction. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In this application, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0028] First embodiment

[0029] See also Figures 1 to 5 The present application provides a shaping device 100, which is used to shape a tubular stent 200a into a spherical stent 200b.

[0030] Before using the shaping device 100, the tubular stent 200a should be obtained first. The tubular stent 200a is obtained by mechanical processing of the tubular material 201, and the mechanical processing includes but is not limited to sawing, wire cutting, laser cutting and the like. Figure 3As shown, the tube 201 is a hollow tubular structure with an inner cavity. The tube 201 is generally made of shape memory functional materials such as nickel titanium, and has excellent elastic properties and strength. The tube 201 has a certain axial length, an inner diameter, an outer diameter and a thickness. Tubes 201 of different specifications are different in at least one of the axial length, inner diameter, outer diameter and thickness. Tubes 201 of different specifications can be machined into tubular stents 200a of different specifications. Tubular stents 200a of different specifications have different elastic properties and strengths and can be applied to different cardiac pathology areas and different ablation sites. The thickness here refers to the radial distance between the inner and outer walls of the tube 201.

[0031] Specifically, the tubular material 201 is cut to obtain a tubular stent 200a. The tubular stent 200a is as follows: Figure 4 As shown, the axial length, inner diameter, outer diameter and thickness of the tubular stent 200a do not change, and the tubular stent 200a includes a tubular body 21 and a plurality of struts 23 connected to each other, wherein the plurality of struts 23 are connected to one end of the tubular body 21, and the plurality of struts 23 are arranged around the circumference of the tubular body 21, and optionally, the plurality of struts 23 are evenly spaced around the circumference of the tubular body 21. The tubular body 21 has an axial length, and the struts 23 have an axial length, wherein the sum of the axial length of the tubular body 21 and the axial length of the struts 23 is equal to the axial length of the tubular stent 200a.

[0032] like Figure 1 As shown, the shaping device 100 includes a positioning rod 11, a ball core 12, and a connecting portion 13. The positioning rod 11 is cylindrical, has an outer diameter and an axial length, the ball core 12 is fixedly connected to one end of the positioning rod 11, the ball core 12 is spherical, the axis of the positioning rod 11 passes through the geometric center of the ball core 12, and the connecting portion 13 covers the outer peripheral wall of the ball core 12. The outer peripheral wall of the connecting portion 13 is provided with a plurality of positioning grooves 131 extending along the axial direction thereof, and the plurality of positioning grooves 131 are arranged around the axis of the positioning rod 11 at intervals in the circumferential direction; optionally, the plurality of positioning grooves 131 are arranged around the ball core 12 at even intervals in the circumferential direction. The tube body 21 is fixedly sleeved on the positioning rod 11 to fix the tube body 21, that is, the inner diameter of the tube body 21 should be greater than or equal to the outer diameter of the positioning rod 11, and the axial length of the positioning rod 11 should be greater than or equal to the axial length of the tube body 21. The multiple positioning grooves 131 are used to accommodate multiple support rods 23 respectively.

[0033] After the tube body 21 is fixed to the positioning rod 11 and the plurality of support rods 23 are respectively accommodated in the plurality of positioning grooves 131, the plurality of support rods 23 are fixed relative to the plurality of positioning grooves 131, thereby preventing the support rods 23 from circumferential deviation and axial movement. After the tubular support 200a and the shaping device 100 are assembled, the assembled whole is placed in a heat shaping heating device for heating. Figure 5As shown, after the plurality of supporting rods 23 are shaped, the tubular body 21 and the positioning rod 11 are released from the fixed state, and then the plurality of supporting rods 23 are respectively separated from the plurality of positioning grooves 131, so that the tubular bracket 200a is removed from the shaping device 100. The tubular bracket 200a is shaped into a spherical bracket 200b, and the plurality of supporting rods 23 of the spherical bracket 200b are circumferentially spaced around the axis of the tubular body 21, and the plurality of supporting rods 23 are spherical.

[0034] In some embodiments, see Figure 1 and Figure 2 The positioning groove 131 radially penetrates the inner and outer walls of the connecting portion 13, and at least a portion of the core 12 is exposed outside the positioning groove 131. When the plurality of support rods 23 are respectively received in the plurality of positioning grooves 131, the plurality of support rods 23 can be attached to the outer wall of the core 12, and after the plurality of support rods 23 are formed, the plurality of support rods 23 are spherical.

[0035] In this embodiment, the plurality of positioning grooves 131 correspond to the plurality of support rods 23 one by one, the number of support rods 23 is six, the number of positioning grooves 131 is correspondingly six, and the plurality of positioning grooves 131 are evenly spaced around the core 12. In other embodiments, the plurality of positioning grooves 131 may be unevenly spaced around the core 12, and the number of support rods 23 may be three, four, eight, ten, or any other suitable number, which is not limited here.

[0036] In some embodiments, still refer to Figure 1 and Figure 2 The circumferential width of the positioning groove 131 is matched with the circumferential width of the support rod 23, that is, the opposite side walls of the positioning groove 131 can abut the support rod 23, and the opposite side walls of the positioning groove 131 form a circumferential constraint on the support rod 23, thereby limiting the circumferential movement of the support rod 23, preventing the tubular bracket 200a from shifting during the shaping process, thereby preventing the tubular bracket 200a from being unable to be shaped into the spherical bracket 200b.

[0037] The opening of the positioning groove 131 is tapered. Specifically, the opening of the positioning groove 131 at one end close to the positioning rod 11 is larger than the opening at one end away from the positioning rod 11. In this way, the support rod 23 can be accommodated in the positioning groove 131 more conveniently.

[0038] In one connection method between the positioning rod 11 and the tube body 21, the shaping device 100 also includes a first locking piece, the positioning rod 11 is provided with a socket 112, and the tube body 21 is provided with a locking hole 212, the locking hole 212 radially penetrates the inner and outer walls of the tube body 21, the tube body 21 is sleeved outside the positioning rod 11 and makes the socket 112 and the locking hole 212 face each other, and the first locking piece is passed through the socket 112 and the locking hole 212 to fix the tube body 21 on the positioning rod 11.

[0039] In another connection method between the positioning rod 11 and the tube body 21, the shaping device 100 also includes a first locking piece, the positioning rod 11 is provided with a plurality of sockets 112, and the plurality of sockets 112 are arranged at intervals along the axial direction of the positioning rod 11, and the tube body 21 is provided with a locking hole 212, and the locking hole 212 passes through the inner and outer walls of the tube body 21, and the tube body 21 can slide relative to the positioning rod 11 along its axial direction. When the tube body 21 is sleeved on the positioning rod 11 and the locking hole 212 is aligned with one of the plurality of sockets 112, the first locking piece is passed through the socket 112 and the locking hole 212 to fix the tube body 21 on the positioning rod 11.

[0040] When the axial length of the support rod 23 is less than the curved surface distance of the bottom surface of the positioning groove 131, the curved surface distance of the support rod 23 against the ball core 12 can be controlled by aligning the locking hole 212 with different sockets 112, and the curved surface distance of the support rod 23 when the locking hole 212 and the socket 112 close to the ball core 12 are aligned is greater than the curved surface distance of the support rod 23 when the locking hole 212 and the socket 112 far from the ball core 12 are aligned. "Curved surface distance" can be explained as follows, for example, the curved surface distance between two points on a spherical surface is the length of a minor arc of a circular surface passing through the two points between the two points, wherein the above-mentioned circular surface is obtained by cutting the spherical surface with a plane passing through the center of the sphere. The curved surface distance of the support rod 23 against the ball core 12 can also be explained with reference to the curved surface distance between the two points on the spherical surface. The curved surface distance of the bottom surface of the positioning groove 131 can also be explained with reference to the curved surface distance between the above-mentioned two points on the spherical surface.

[0041] When the axial length of the support rod 23 is greater than the curved surface distance of the bottom surface of the positioning groove 131, that is, the curved surface distance between the locking hole 212 and the insertion hole 112 away from the ball core 12 is greater than the curved surface distance of the bottom surface of the positioning groove 131, on the one hand, at least the part of the support rod 23 away from the tube body 21 cannot be accommodated in the positioning groove 131; on the other hand, the end of the support rod 23 away from the tube body 21 is not fixedly connected to the ball core 12 or the connecting part 13. The curved surface distance of the bottom surface of the positioning groove 131 can also be explained by referring to the curved surface distance between the two points on the above-mentioned spherical surface.

[0042] To solve the above problems, see Figure 1 and Figure 2 The end surface of the connecting portion 13 facing away from the positioning rod 11 is provided with a receiving groove 133, which penetrates the inner and outer walls of the connecting portion 13, and a plurality of positioning grooves 131 are connected to the receiving groove 133. The outer wall of the core 12 exposed to the receiving groove 133 is provided with a plurality of positioning holes 123, which are arranged around the axis of the positioning rod 11 at intervals in the circumferential direction, and the positioning holes 123 correspond to the positioning grooves 131 one by one. The positioning holes 123 are used for the end of the support rod 23 away from the tube body 21 to be bent and inserted therein, so as to shape the end of the support rod 23 away from the tube body 21 into a hook-shaped structure. Figure 2 and Figure 5As shown, each support rod 23 includes a shaping portion 232 and a positioning portion 233 connected to the shaping portion 232, the positioning portion 233 is away from the tube body 21 relative to the shaping portion 232, wherein the shaping portion 232 is accommodated in the positioning groove 131 and the accommodation groove 133, the positioning portion 233 is inserted into the positioning hole 123, and the shaping portion 232 is bent relative to the positioning portion 233, so that a hook-shaped structure is formed at the connection between the shaping portion 232 and the positioning portion 233. On the one hand, the tube body 21 of the tubular bracket 200a is fixed to the positioning rod 11 by inserting the first locking piece into the insertion hole 112 and the locking hole 212, and on the other hand, the support rod 23 of the tubular bracket 200a is fixed to the ball core 12 by the hook-shaped structure, so that the tubular bracket 200a is more firmly fixed on the shaping device 100, thereby avoiding the phenomenon of axial movement of the tubular bracket 200a during heat setting.

[0043] The bottom surface of the accommodating groove 133 and the inner wall of the plurality of positioning holes 123 are smoothly transitioned so that the shaping portion 232 and the positioning portion 233 have a smooth transition at the connection. This design can disperse the stress at the connection between the shaping portion 232 and the positioning portion 233, thereby maintaining the structural stability of the shaping portion 232 and the positioning portion 233.

[0044] The insertion length of the end of the support rod 23 away from the tube body 21 along the depth direction of the positioning hole 123 can be changed, and the insertion length is the length of the positioning portion 233 extending along the axial direction, which is controlled by the relative positions of the locking hole 212 and the insertion hole 112. It can be understood that the longer the insertion length of the positioning portion 233 along the depth direction of the positioning hole 123 is, the longer the length of the positioning portion 233 is, the greater the restraint force formed by the positioning portion 233 in the positioning hole 123, and the stronger the restraint between the support rod 23 and the core 12 is.

[0045] In some embodiments, see Figures 1 to 4 The tubular support 200a also includes a grid structure 25, which is connected between the tube body 21 and the plurality of support rods 23. The grid structure 25 includes a plurality of connecting rods 251, which are connected end to end to form a plurality of meshes 252. The grid structure 25 is arranged circumferentially around the axis of the tube body 21, which can provide good support and increase the structural stability of the tubular support 200a during heat setting. In addition, a reinforcing rib 231 is provided at the connection between the grid structure 25 and the support rod 23 to prevent the connection between the support rod 23 and the grid structure 25 from breaking.

[0046] The core 12 includes a first hemisphere 124 and a second hemisphere 125 connected to the first hemisphere 124. The first hemisphere 124 and the second hemisphere 125 are combined to form a sphere. The second hemisphere 125 is located between the positioning rod 11 and the first hemisphere 124. The connecting portion 13 covers the outer peripheral wall of the first hemisphere 124 away from the second hemisphere 125. The support rod 23 can be accommodated in the positioning groove 131 and abut against the outer wall of the first hemisphere 124 to shape the support rod 23. The grid structure 25 abuts against the outer wall of the second hemisphere 125. The second hemisphere 125 is used to shape the grid structure 25 so that the grid structure 25 and the plurality of support rods 23 are spherical as a whole. Optionally, the positioning rod 11 and the second hemisphere 125 are smoothly connected, so that the tube body 21 and the grid structure 25 can be smoothly transitioned.

[0047] Second embodiment

[0048] In a possible usage scenario, the end of the support rod 23 of the tubular support 200a away from the tube body 21 can be inserted into the positioning hole 123, but the insertion length of the positioning portion 233 along the depth direction of the positioning hole 123 is insufficient, resulting in a small restraining force formed by the positioning portion 233 in the positioning hole 123, and the tubular support 200a is prone to axial movement.

[0049] In order to solve the above problems, the present embodiment provides a shaping device 100, which includes a positioning rod 11, a ball core 12 and a connecting portion 13. The ball core 12 includes a first hemisphere 124 and a second hemisphere 125 connected to the first hemisphere 124. The first hemisphere 124 and the second hemisphere 125 are combined to form a spherical shape. The second hemisphere 125 is located between the positioning rod 11 and the first hemisphere 124. The connecting portion 13 covers the outer peripheral wall of the first hemisphere 124. The tubular support 200a includes a tubular body 21, a plurality of support rods 23 and a grid structure 25 connected between the tubular body 21 and the plurality of support rods 23. The structural forms of the shaping device 100 and the tubular support 200a of the present embodiment can be referred to the first embodiment, and will not be repeated here.

[0050] See also Figure 6 The main difference between the shaping device 100 of the second embodiment and the shaping device 100 of the first embodiment is that the shaping device 100 of the second embodiment further comprises a first cover member 14 and a second cover member 15 that can be coupled to each other. When the first cover member 14 and the second cover member 15 are coupled to each other, the plurality of support rods 23 and the grid structure 25 can be abutted against the outer wall of the core 12, and the contours of the plurality of support rods 23 and the grid structure 25 of the tubular support 200a can be shaped into an arc surface. The structure shaped by the tubular support 200a is as follows: Figure 5 The spherical bracket 200b shown basically meets the design requirements.

[0051] The first cover member 14 faces the connecting portion 13, and the second cover member 15 faces the first cover member 14. The first cover member 14 is arranged above the second cover member 15. The second cover member 15 is provided with a through hole 152 along its axial direction. The through hole 152 penetrates the second cover member 15. The through hole 152 is used for the positioning rod 11 and the tube body 21 fixed on the positioning rod 11 to pass through. The first cover member 14 and the second cover member 15 are connected to each other to form an internal space, which can clamp multiple support rods 23 and the grid structure 25 between the outer wall and the inner space of the ball core 12, that is, the multiple support rods 23 are clamped between the outer wall and the inner space of the first hemisphere 124, and the grid structure 25 is clamped between the outer wall and the inner space of the second hemisphere 125, so as to prevent the multiple support rods 23 and the grid structure 25 from detaching from the ball core 12 during shaping.

[0052] Specifically, the first cover member 14 is recessed inwardly toward one side of the second cover member 15 to form a first groove, the inner wall of the first groove is used to abut the connecting portion 13, the second cover member 15 is recessed inwardly toward one side of the first cover member 14 to form a second groove 153, the inner wall of the second groove 153 is used to abut the grid structure 25, when the first cover member 14 and the second cover member 15 are mutually matched and connected, the first groove and the second groove 153 are enclosed to form the above-mentioned internal space, the edge of the internal space is enclosed to form a sphere, and the above-mentioned sphere and the ball core 12 are concentric. Among them, the through hole 152 is axially arranged on the inner wall of the second groove 153, and the through hole 152 is connected to the second groove 153.

[0053] In the connection method between the first cover member 14 and the second cover member 15, the first cover member 14 is provided with at least one first mounting hole 144, and the second cover member 15 is provided with a second mounting hole 154 corresponding to the first mounting hole 144. When the first cover member 14 and the second cover member 15 are matched and connected, the first mounting hole 144 and the second mounting hole 154 are opposite to each other. The shaping device 100 also includes a second fastening member, which is passed through the first mounting hole 144 and the second mounting hole 154 to fix the first cover member 14 to the second cover member 15.

[0054] The first cover member 14 further includes a first connection plate 146 disposed at the edge of the first groove, and the second cover member 15 further includes a second connection plate 156 disposed at the edge of the second groove 153. The first mounting hole 144 is axially opened in the first connection plate 146, and the second mounting hole 154 is axially opened in the second connection plate 156. The first connection plate 146 is provided with two first mounting holes 144, and the second connection plate 156 is provided with two second mounting holes 154. The two first mounting holes 144 are respectively opposite to the two second mounting holes 154. The second locking member is penetrated through the first mounting holes 144 and the second mounting holes 154, so that the first cover member 14 is fixedly connected to the second cover member 15. The two second mounting holes 154 and the two second mounting holes 154 are provided, so that the first cover member 14 and the second cover member 15 can be more firmly locked. Of course, the first connection plate 146 and the second connection plate 156 can also be provided with other numbers of first mounting holes 144 and second mounting holes 154, which are not limited here.

[0055] One of the side of the first connecting disk 146 facing the second connecting disk 156 and the side of the second connecting disk 156 facing the first connecting disk 146 is provided with a positioning ridge 1461, and the other is provided with a connecting groove 1561. The matching connection between the positioning ridge 1461 and the connecting groove 1561 fixes the position of the first cover member 14 and the second cover member 15 when they are matched and connected, thereby reducing human assembly errors; in addition, it can also avoid circumferential movement when the first cover member 14 and the second cover member 15 are matched and connected.

[0056] In this embodiment, the first connection disk 146 is provided with a plurality of positioning ridges 1461, and the plurality of positioning ridges 1461 are arranged around the axis of the first connection disk 146 at circumferential intervals, and the second connection disk 156 is provided with a plurality of connection grooves 1561, and the plurality of connection grooves 1561 are arranged around the axis of the second connection disk 156 at circumferential intervals, and the plurality of positioning ridges 1461 and the plurality of connection grooves 1561 correspond to each other and are connected in a cooperative manner. In other embodiments, the first connection disk 146 is provided with a connection groove 1561, and the second connection disk 156 is provided with a positioning ridge 1461, and the positioning ridge 1461 and the connection groove 1561 are connected in a cooperative manner. In this embodiment, the number of positioning ridges 1461 is six, and the number of connection grooves 1561 is six. Of course, the number of positioning ridges 1461 and the connection grooves 1561 can also be one, three, five, or other suitable numbers, which are not limited here.

[0057] The present application also provides a method for processing a spherical bracket, the method comprising the following steps:

[0058] The first step is to obtain a tubular support 200 a. The tubular support 200 a is obtained by machining the tubular material 201. The tubular support 200 a includes a tubular body 21, a grid structure 25, and a plurality of support rods 23 connected to one end of the grid structure 25 away from the tubular body 21.

[0059] Step 2: The tube body 21 is sleeved on the positioning rod 11, and the first locking piece is inserted into the insertion hole 112 and the locking hole 212, and the tube body 21 is fixed to the positioning rod 11. Multiple support rods 23 are respectively accommodated in multiple positioning grooves 131, and one end of the support rod 23 away from the tube body 21 is inserted into the positioning hole 123 to form a hook-shaped structure, and the multiple support rods 23 are fixed to the ball core 12 through the hook-shaped structure.

[0060] Step 3: Assemble the tubular support 200a and the shaping device 100 into a whole. The positioning rod 11 and the tube body 21 sleeved on the positioning rod 11 are inserted into the through hole 152 of the second cover member 15, and the second locking piece is inserted into the first mounting hole 144 and the second mounting hole 154 to fix the first cover member 14 to the second cover member 15, thereby completing the assembly of the tubular support 200a and the shaping device 100.

[0061] Step 4: Heat the whole assembled tubular support 200a and the shaping device 100 in step 3. The whole assembly can be placed in a heating device, such as a heat shaping oven, and the heating time and heating temperature are set.

[0062] Step 5: Cool down the whole after the heating in step 4. For example, put it in a water tank to cool it down quickly. The temperature of the cooling water in the water tank can be set.

[0063] Step 6: Disassemble the shaping device 100 and take out the spherical bracket 200b. First, withdraw the second locking piece from the first mounting hole 144 and the second mounting hole 154, and the first cover piece 14 and the second cover piece 15 can be separated from each other. Then, withdraw the hook-shaped structure at one end of the support rod 23 away from the tube body 21 from the positioning hole 123, withdraw the first locking piece from the insertion hole 112 and the locking hole 212, and withdraw the tube body 21 from the positioning rod 11, and take out the spherical bracket 200b.

[0064] Step 7: Quality inspection of the spherical bracket 200b: Check whether the shape of the spherical bracket 200b meets the requirements, check whether the surface color of the spherical bracket 200b meets the requirements, etc.

[0065] Third embodiment

[0066] In a possible usage scenario, the tube body 21 of the tubular bracket 200a is fixed to the positioning rod 11 by passing the first locking piece through the insertion hole 112 and the locking hole 212, and the support rod 23 of the tubular bracket 200a is fixed to the ball core 12 by inserting the positioning portion 233 into the positioning hole 123, that is, the restraining force formed by the positioning portion 233 in the positioning hole 123 is relatively large. When the tubular bracket 200a can be firmly fixed on the shaping device 100, in order to shorten the time for the grid structure 25 and multiple support rods 23 to be shaped into a spherical shape, the tubular bracket 200a needs to be exposed to the heating equipment as much as possible.

[0067] In this regard, the present embodiment provides a shaping device 100, which includes a positioning rod 11, a ball core 12, and a connecting portion 13. The ball core 12 includes a first hemisphere 124 and a second hemisphere 125 connected to the first hemisphere 124. The first hemisphere 124 and the second hemisphere 125 are combined to form a spherical shape. The second hemisphere 125 is located between the positioning rod 11 and the first hemisphere 124. The connecting portion 13 covers the outer peripheral wall of the first hemisphere 124. The tubular support 200a includes a tubular body 21, a plurality of support rods 23, and a grid structure 25 connected between the tubular body 21 and the plurality of support rods 23. The structural forms of the shaping device 100 and the tubular support 200a of the present embodiment can be referred to the first embodiment, and will not be repeated here.

[0068] See also Figures 7 and 8 The main difference between the shaping device 100 of the third embodiment and the shaping device 100 of the first embodiment is that the shaping device 100 of this embodiment further includes a limiting member 16, which is used to be sleeved outside the tube body 21. Specifically, the limiting member 16 is provided with a through hole 161 along its axial direction, and the through hole 161 is for the positioning rod 11 and the tube body 21 fixed on the positioning rod 11 to pass through. The limiting member 16 is provided with a smoothly transitioned limiting groove 163 at one end facing the ball core 12, and at least part of the grid structure 25 is accommodated in the limiting groove 163. The limiting groove 163 is connected to the through hole 161, and the inner diameter of the limiting groove 163 close to the ball core 12 is larger than the inner diameter of the limiting groove 163 away from the ball core 12, so that the inner wall of the limiting groove 163 can be close to the outer wall of the grid structure 25. The end of the limiting member 16 facing the core 12 is used to press against the grid structure 25, that is, the inner wall of the limiting groove 163 presses against the grid structure 25, and the inner wall of the through hole 161 presses against the tube body 21, so that the tube body 21 and the grid structure 25 are respectively abutted against the positioning rod 11 and the core 12. Since the positioning rod 11 and the core 12 are smoothly connected, the tube body 21 and the grid structure 25 can also form a smooth transition.

[0069] In some embodiments, the shaping device 100 also includes a fastener 17 that pushes against the limit member 16. The fastener 17 is provided with an internal thread. The end of the positioning rod 11 away from the core 12 is provided with an external thread. Through the cooperation of the internal thread and the external thread, the fastener 17 is threadedly connected to the end of the positioning rod 11 away from the core 12. The fastener 17 can rotate relative to the positioning rod 11 and can move axially along the positioning rod 11. The fastener 17 pushes against the limit member 16, driving the limit member 16 to move axially along the positioning rod 11. The limit member 16 can push against the grid structure 25 and stick to the outer wall of the core 12.

[0070] During the shaping process of the tubular support 200a in the third embodiment, the grid structure 25 and the plurality of support rods 23 are exposed to the heating device, making it easier and faster to obtain heat, thereby greatly shortening the heat shaping time and saving time costs.

[0071] The present application also provides a method for processing a spherical bracket, the method comprising the following steps:

[0072] The first step is to obtain a tubular support 200 a. The tubular support 200 a is obtained by machining the tubular material 201. The tubular support 200 a includes a tubular body 21, a grid structure 25, and a plurality of support rods 23 connected to one end of the grid structure 25 away from the tubular body 21.

[0073] Step 2: The tube body 21 is sleeved on the positioning rod 11, the first locking piece is passed through the insertion hole 112 and the locking hole 212, the tube body 21 is fixed to the positioning rod 11, and the multiple support rods 23 are respectively accommodated in the multiple positioning grooves 131, and one end of the support rod 23 away from the tube body 21 is inserted into the positioning hole 123 to form a hook-shaped structure, and the multiple support rods 23 are fixed to the ball core 12 through the hook-shaped structure.

[0074] The third step is to insert the positioning rod 11 and the tube body 21 sleeved on the positioning rod 11 into the through hole 161 of the limiting member 16, and the fastener 17 is threadedly connected to the end of the positioning rod 11 away from the ball core 12. The fastener 17 pushes against the limiting member 16, driving the limiting member 16 to push against the grid structure 25 and abut against the ball core 12, thereby completing the assembly of the tubular bracket 200a and the shaping device 100.

[0075] Step 4: Heat the whole assembled tubular support 200a and the shaping device 100 in step 3. The whole assembly can be placed in a heating device, such as a heat shaping oven, and the heating time and heating temperature are set.

[0076] Step 5: Cool down the whole after the heating in step 4. For example, put it in a water tank to cool it down quickly. The temperature of the cooling water in the water tank can be set.

[0077] Step 6: Disassemble the shaping device 100 and take out the spherical bracket 200b. First, withdraw the fastener 17 from the positioning rod 11, and withdraw the stopper 16 from the tube body 21. Then, withdraw the hook structure at one end of the support rod 23 away from the tube body 21 from the positioning hole 123, withdraw the first locking piece from the insertion hole 112 and the locking hole 212, and withdraw the tube body 21 from the positioning rod 11, and then take out the spherical bracket 200b.

[0078] Step 7: Quality inspection: Check whether the shape of the spherical bracket 200b meets the requirements, check whether the surface color of the spherical bracket 200b meets the requirements, etc.

[0079] Fourth embodiment

[0080] In a possible use scenario, the axial length of the support rod 23 is less than the curved distance of the bottom surface of the positioning groove 131, and the end of the support rod 23 away from the tube body 21 cannot be inserted into the positioning hole 123, and the end of the support rod 23 away from the tube body 21 has no hook-shaped structure. When the tubular bracket 200a is formed, multiple support rods 23 are easy to separate from the outer wall of the ball core 12 along the tangent direction of the ball core 12, forming an "open trumpet" shape, making it difficult to align and connect the first cover member 14 and the second cover member 15.

[0081] To solve the above problems, please refer to Figures 9 to 11 In this regard, the present embodiment provides a shaping device 100, which includes a positioning rod 11, a ball core 12, a connecting portion 13, and a first cover member 14 and a second cover member 15 that can be mutually matched and connected. The ball core 12 includes a first hemisphere 124 and a second hemisphere 125 connected to the first hemisphere 124. The first hemisphere 124 and the second hemisphere 125 are combined to form a spherical shape. The second hemisphere 125 is located between the positioning rod 11 and the first hemisphere 124. The connecting portion 13 covers the outer peripheral wall of the first hemisphere 124. The tubular support 200a includes a tubular body 21, a plurality of support rods 23, and a grid structure 25 connected between the tubular body 21 and the plurality of support rods 23. The structural forms of the shaping device 100 and the tubular support 200a of the present embodiment can be the same as those of the second embodiment, and will not be repeated here.

[0082] The main difference between the shaping device 100 of the fourth embodiment and the shaping device 100 of the second embodiment is that the shaping device 100 of the fourth embodiment further includes a fixing member 18, which is used to push against one end of the support rod 23 away from the tube body 21 to make it close to the outer wall of the core 12, thereby preventing multiple support rods 23 from detaching from the outer wall of the core 12 along the tangent direction of the core 12.

[0083] Specifically, the first cover member 14 is provided with a second through hole 147 along its axis, the second through hole 147 penetrates the inner and outer walls of the first groove, and the fixing member 18 is penetrated through the first cover member 14. The end of the ball core 12 away from the positioning rod 11 is provided with a fastening hole along its axial direction, and the fixing member 18 is provided with a third through hole 182 along its axial direction, and the fastening hole and the third through hole 182 are directly opposite, and the shaping device 100 further includes a third locking member, and the third locking member is penetrated through the fastening hole and the third through hole 182, so that the fixing member 18 is fixedly connected to the end of the ball core 12 away from the positioning rod 11.

[0084] like Fig.11 As shown, the fixing member 18 is provided with a plurality of protrusions 184, which are provided on the end surface of the fixing member 18 facing the ball core 12. After the plurality of protrusions 184 are respectively accommodated in the plurality of positioning grooves 131, there is a gap between the protrusions 184 and the positioning grooves 131, and the plurality of support rods 23 are inserted in the above gap. The plurality of protrusions 184 are used to abut against the plurality of support rods 23 so that the plurality of support rods 23 are close to the ball core 12.

[0085] When the tubular bracket 200a is formed, the plurality of support rods 23 can be inserted into the plurality of gaps respectively, and the first cover member 14 and the second cover member 15 can be conveniently connected and matched, which is convenient to operate. After the plurality of support rods 23 are respectively inserted into the plurality of gaps, the plurality of protrusions 184 of the fixing member 18 respectively abut against the plurality of support rods 23 and form a restraining force on the plurality of support rods 23 to prevent the plurality of support rods 23 from falling off from the gaps, thereby preventing the tubular bracket 200a from being unable to be formed into the spherical bracket 200b.

[0086] The end of the fixing member 18 facing the connecting portion 13 is provided with a smooth transition avoidance groove 185, and a plurality of protrusions 184 are provided on the inner wall of the avoidance groove 185. The avoidance groove 185 is connected to the third through hole 182, that is, the inner diameter of the avoidance groove 185 close to the connecting portion 13 is larger than the inner diameter of the avoidance groove 185 away from the connecting portion 13, so that the inner wall of the avoidance groove 185 can be close to the outer wall of the connecting portion 13, and at least part of the connecting portion 13 can be accommodated in the avoidance groove 185. The plurality of protrusions 184 can abut against the plurality of support rods 23, so that the plurality of support rods 23 are close to the ball core 12. Since the outer wall of the ball core 12 is spherical, the plurality of support rods 23 can also form a shape as shown in FIG. Fig.12 The spherical bracket shown.

[0087] The present application also provides a method for processing a spherical bracket, the method comprising the following steps:

[0088] The first step is to obtain a tubular support 200 a. The tubular support 200 a is obtained by machining the tubular material 201. The tubular support 200 a includes a tubular body 21, a grid structure 25, and a plurality of support rods 23 connected to one end of the grid structure 25 away from the tubular body 21.

[0089] The second step is to sleeve the tube body 21 on the positioning rod 11, and the first locking piece is inserted into the insertion hole 112 and the locking hole 212, and the tube body 21 is fixed to the positioning rod 11; then the fixing piece 18 is fixedly connected to the end of the ball core 12 away from the positioning rod 11, and the multiple protrusions 184 of the fixing piece 18 are respectively accommodated in the multiple positioning grooves 131 and there is still a gap, and the multiple support rods 23 are inserted in the above-mentioned gap.

[0090] Step 3: Assemble the tubular support 200a and the shaping device 100 into a whole. The positioning rod 11 and the tube body 21 sleeved on the positioning rod 11 are inserted into the through hole 152 of the second cover member 15, and the first cover member 14 and the second cover member 15 are inserted into the first mounting hole 144 and the second mounting hole 154 through the second locking member, so that the first cover member 14 is fixedly connected to the second cover member 15, thereby completing the assembly of the tubular support 200a and the shaping device 100.

[0091] Step 4: Heat the whole assembled tubular support 200a and the shaping device 100 in step 3. The whole assembly can be placed in a heating device, such as a heat shaping oven, and the heating time and heating temperature are set.

[0092] Step 5: Cool down the whole after the heating in step 4. For example, put it in a water tank to cool it down quickly. The temperature of the cooling water in the water tank can be set.

[0093] Step 6: Disassemble the shaping device 100 and take out the spherical bracket 200b. First, withdraw the second locking piece from the first mounting hole 144 and the second mounting hole 154, and the first cover piece 14 and the second cover piece 15 can be separated from each other. Then, the fixing piece 18 falls off the ball core 12, and the tube body 21 is withdrawn from the positioning rod 11, and the spherical bracket 200b is taken out.

[0094] Step 7: Quality inspection: Check whether the shape of the spherical bracket 200b meets the requirements, check whether the surface color of the spherical bracket 200b meets the requirements, etc.

[0095] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. In other words, the multiple embodiments described above can also be combined arbitrarily according to actual needs.

[0096] It should be noted that all the above drawings are exemplary illustrations of the present application and do not represent the actual size of the product. And the dimensional ratio relationship between the components in the drawings does not serve as a limitation on the actual product of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. The scope of protection of the present application is not limited to this. Any technician familiar with the field can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the scope of protection of the present application. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A shaping device, characterized in that: The shaping device is used to shape a tubular bracket into a spherical bracket. The tubular bracket includes a tubular body and a plurality of support rods connected to each other. The shaping device includes a positioning rod for fixing the tubular body, a spherical core connected to one end of the positioning rod, and a connecting portion covering the outer peripheral wall of the spherical core; the outer peripheral wall of the connecting portion is provided with a plurality of positioning grooves extending along its axial direction, and the plurality of positioning grooves are arranged around the axis of the positioning rod at circumferential intervals, and the plurality of positioning grooves are used to respectively accommodate the plurality of support rods so as to shape the plurality of support rods.

2. The shaping device according to claim 1, characterized in that: The positioning groove penetrates through the inner and outer walls of the connecting portion in a radial direction, and the plurality of support rods abut against the outer wall of the core to shape it.

3. The shaping device according to claim 1, characterized in that: The circumferential width of the positioning groove is matched with the circumferential width of the support rod to limit the circumferential movement of the support rod.

4. The shaping device according to claim 1, characterized in that: The shaping device also includes a first locking piece, the positioning rod is provided with an insertion hole, the tube body is provided with a locking hole, and the first locking piece is passed through the locking hole and the insertion hole to fix the tube body to the positioning rod.

5. The shaping device according to claim 1, characterized in that: The shaping device also includes a first locking piece. The positioning rod is provided with a plurality of insertion holes, and the plurality of insertion holes are arranged at intervals along the axial direction of the positioning rod. The tube body is provided with a locking hole. When the tube body is sleeved on the positioning rod, the first locking piece is passed through the locking hole and can engage with one of the plurality of insertion holes to fix the tube body to the positioning rod.

6. The shaping device according to claim 1, characterized in that: The end surface of the connecting portion facing away from the positioning rod is provided with a receiving groove, and the receiving groove penetrates the inner and outer walls of the connecting portion, and a plurality of the positioning grooves are connected to the receiving groove. The outer wall of the ball core exposed to the receiving groove is provided with a plurality of positioning holes, and the plurality of positioning holes are arranged around the axis of the positioning rod at circumferential intervals, and the positioning holes correspond to the positioning grooves one by one. The positioning holes are used for bending and inserting one end of the support rod away from the tube body, so as to shape the end of the support rod away from the tube body into a hook-shaped structure.

7. The shaping device according to claim 1, characterized in that: The tubular support also includes a grid structure, which is connected between the tube body and the plurality of support rods. The spherical core includes a first hemisphere and a second hemisphere. The second hemisphere is located between the positioning rod and the first hemisphere. The positioning rod and the second hemisphere are smoothly connected. The connecting portion covers the outer wall of the first hemisphere, and the grid structure is attached to the second hemisphere to shape it.

8. The shaping device according to claim 7, characterized in that: The shaping device also includes a first covering member and a second covering member that can be coupled to each other. The second covering member is provided with a through hole along its axial direction. The through hole is used for the positioning rod and the tube body fixed on the positioning rod to pass through. The first covering member and the second covering member can push the multiple support rods and the grid structure against the ball core when coupled to each other to prevent the multiple support rods and the grid structure from separating from the ball core during shaping.

9. The shaping device according to claim 8, characterized in that: A first groove corresponding to the connecting portion is provided on a side of the first covering member facing the second covering member, and a second groove corresponding to the first groove is provided on a side of the second covering member facing the first covering member. The through hole is provided on the inner wall of the second groove, and the inner wall of the first groove is used to abut against the plurality of support rods, and the inner wall of the second groove is used to abut against the grid structure.

10. The shaping device according to claim 9, characterized in that: When the first cover member and the second cover member are connected to each other, the sphere formed by the first groove and the second groove has the same center as the ball core.

11. The shaping device according to claim 9, characterized in that: The first covering member is provided with at least one first mounting hole, the second covering member is provided with a second mounting hole corresponding to the first mounting hole, and the shaping device also includes a second locking member, which is passed through the first mounting hole and the second mounting hole so that the first covering member can be detachably connected to the second covering member.

12. The shaping device according to claim 7, characterized in that: The shaping device further comprises a limiting member, which is used to be sleeved on the tube body and to push the grid structure so as to form a smooth transition between the tube body and the grid structure.

13. The shaping device according to claim 12, characterized in that: The shaping device also includes a fastener that presses against the limiting member. The fastener is threadedly connected to the end of the positioning rod away from the core. The fastener can rotate and move relative to the positioning rod to drive the end of the limiting member away from the fastener to press against the grid structure.

14. The shaping device according to claim 9, characterized in that: The shaping device also includes a fixing part, which is passed through the first covering part and is detachably connected to an end of the ball core away from the positioning rod. A plurality of protrusions are provided at an end of the fixing part facing the ball core. After the plurality of protrusions are respectively accommodated in the plurality of positioning grooves, the positioning grooves also have gaps, and the plurality of support rods are inserted in the gaps.

15. The shaping device according to claim 14, characterized in that: An avoidance groove is provided at one end of the fixing member facing the connecting portion, a plurality of protrusions are arranged on the inner wall of the avoidance groove, and at least a part of the connecting portion is accommodated in the avoidance groove.

16. A method for processing a spherical bracket, characterized in that: The method comprises the following steps: The tubular body of the tubular stent is fixedly sleeved on the positioning rod of the shaping device according to any one of claims 9 to 11, and the plurality of supporting rods of the tubular stent are respectively accommodated in the plurality of positioning grooves of the shaping device; The first covering member and the second covering member of the shaping device clamp the grid structure and the plurality of supporting rods of the tubular support and assemble them into a whole; The whole assembly of the shaping device and the tubular support is heated so that the tubular support is shaped into a spherical support by heating.

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