Method of weaving an anchor disc and anchor disc

Abstract

The present application relates to the field of implantable medical devices, and discloses a braiding method of an anchoring disc and the anchoring disc. The braiding method of the anchoring disc is applied to an occluder, and comprises the following steps: providing a pre-braided piece comprising a pre-formed connecting part and a plurality of support rods; dividing the support rods into a plurality of support rod groups based on a braiding sequence, wherein at least two support rods in each support rod group have a preset length difference. The braiding is sequentially performed according to the braiding sequence. After the braiding sequence is determined, the support rods are divided into a plurality of support rod groups, and at least two support rods in each support rod group are subjected to length difference processing to compensate for the difference in the required path caused by stacking during the braiding process, so that the ends of each support rod finally remain at the same height, thereby enabling the plurality of support rods in the anchoring part to uniformly exert anchoring force and improving the stress uniformity and overall fixation reliability of the anchoring disc.

Description

Technical Field

[0001] This invention relates to the field of implantable medical devices, specifically to a method for weaving an anchoring disc and the anchoring disc itself. Background Technology

[0002] As the core load-bearing component of the occluder, the anchoring disc is responsible for securing the device firmly within the left atrial appendage to prevent displacement under pulsatile forces or blood flow impact. Although existing technologies enhance the structural support strength and recyclable compressibility through cross-weaving at the base of the support rod, the woven anchoring discs often suffer from poor symmetry and uneven stress distribution, thus affecting their anchoring performance in the atrial appendage. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a weaving method for anchor plates, which can improve the uniformity of stress distribution on the anchor plates and the overall reliability of their fixation.

[0004] The present invention also proposes an anchoring disc made by the above-described weaving method.

[0005] A method for weaving an anchoring disc according to a first aspect of the present invention, applied to an occluder, includes the following steps: providing a prefabricated braided component, comprising a pre-formed connecting portion and a plurality of support rods; the connecting portion extending axially; the support rods, evenly arranged circumferentially along the connecting portion, having a root connected to one end of the connecting portion and a rod body extending away from the root. The support rods are divided into a plurality of support rod groups based on the weaving sequence, wherein at least two support rods in each support rod group have a predetermined length difference. Weaving is performed sequentially according to the weaving sequence: the roots of later-woven support rods are overlapped on the roots of earlier-woven support rods, so that the roots of each support rod overlap and converge to fix them, and the rod bodies radiate outwards to form anchoring portions with consistent configuration dimensions, consistent end heights, and evenly distributed around the central axis of the connecting portion.

[0006] The weaving method for an anchoring disk according to an embodiment of the present invention has at least the following beneficial effects: since for an anchoring disk formed by weaving, support rods are usually stacked one on top of another, and each support rod requires a different path. Therefore, if the lengths of the support rods are consistent in the preformed state, the path difference caused by stacked weaving will result in different distances between the end of the rod body away from the root of each support rod and the connecting portion, so that the ends of the anchoring portion formed by weaving have different heights along the axial direction of the connecting portion. Such difference will prevent the support rods from uniformly applying anchoring force, cause uneven stress on the occluder in the cavity, and thus affect the reliability of the overall fixation. After the weaving sequence is determined, the weaving method for an anchoring disk according to an embodiment of the present invention divides the support rods into a plurality of support rod groups, and performs length differentiation processing on at least two of the support rods in each support rod group, so as to compensate for the difference in required paths caused by stacking during weaving, so that the ends of all support rods finally remain at the same height, thereby enabling the plurality of support rods in the anchoring portion to uniformly apply anchoring force, and improving the stress uniformity of the anchoring disk and the reliability of overall fixation.

[0007] According to some embodiments of the present invention, within the same support rod group, the lengths of the support rods are configured to increase in accordance with the weaving sequence thereof; the weaving sequence is the arrangement sequence of the support rods along the circumferential direction.

[0008] According to some embodiments of the present invention, the support rods include a first rod to a ninth rod arranged sequentially in the circumferential direction, and the division of the support rod groups and the lengths of the support rods are as follows: dividing the first rod, the second rod and the third rod into a first group, and setting the lengths thereof to satisfy L1 < L2 < L3; dividing the fourth rod, the fifth rod and the sixth rod into a second group, and setting the lengths thereof to satisfy L4 < L5 < L6, and L4 < L1; dividing the seventh rod, the eighth rod and the ninth rod into a third group, and setting the lengths thereof to satisfy L7 < L8 < L9.

[0009] According to some embodiments of the present invention, within the same support rod group, the support rods are sequentially divided into a first-woven rod, an intermediate-woven rod and a last-woven rod according to the weaving sequence, and the lengths of the support rods are configured such that the lengths of both the first-woven rod and the last-woven rod are greater than the length of the intermediate-woven rod; wherein support rods arranged at equal circumferential intervals are divided into one said support rod group, and the weaving sequence is determined based on the circumferential arrangement sequence of the support rods within the support rod group and the inter-group sequence of the support rod groups.

[0010] According to some embodiments of the present invention, the support rods include a first rod to a ninth rod arranged sequentially in the circumferential direction, and the division of the support rod groups and the lengths of the support rods are as follows: Dividing the first rod, the fourth rod and the seventh rod into a first group, and setting the lengths thereof to satisfy L4 < L7 and L4 < L1; Dividing the second rod, the fifth rod and the eighth rod into a second group, and setting the lengths thereof to satisfy L5 < L8 and L5 < L2; Dividing the third rod, the sixth rod and the ninth rod into a third group, and setting the lengths thereof to satisfy L6 < L9 and L6 < L3.

[0011] An anchoring disk according to an embodiment of the second aspect of the present invention is manufactured by the weaving method of the anchoring disk according to any one of the embodiments of the first aspect, and comprises a connecting portion and a plurality of support rods. The connecting portion extends axially. The plurality of support rods have root portions connected to one end of the connecting portion and uniformly arranged along the circumferential direction of the connecting portion, and rod bodies extending away from the root portions. The support rods are divided into a plurality of support rod groups, and at least two support rods in each support rod group have a preset length difference. The root portions of the support rods overlap with each other and are converged and fixed, and the rod bodies of the support rods radiate outward to form an anchoring portion with consistent configuration size, consistent end height and uniformly distributed around the central axis of the connecting portion.

[0012] The anchoring disk according to the embodiment of the present invention has at least the following beneficial effects: the support rods in the anchoring disk are divided into a plurality of support rod groups, and at least two support rods in each support rod group are subjected to length differentiation processing, so as to compensate for the difference in required path caused by stacking during weaving, so that the ends of each support rod finally stay at the same height, thereby enabling the plurality of support rods in the anchoring portion to uniformly apply anchoring force, and improving the stress uniformity of the anchoring disk and the reliability of overall fixation.

[0013] According to some embodiments of the present invention, the support rods comprise a first rod to a ninth rod sequentially arranged in the circumferential direction; the support rod groups are configured as three groups continuously distributed along the circumferential direction, comprising a first group consisting of the first rod, the second rod and the third rod, a second group consisting of the fourth rod, the fifth rod and the sixth rod, and a third group consisting of the seventh rod, the eighth rod and the ninth rod. Wherein, L1 < L2 < L3, L4 < L5 < L6 and L4 < L1, L7 < L8 < L9.

[0014] According to some embodiments of the present invention, the support rods comprise a first rod to a ninth rod sequentially arranged in the circumferential direction; the support rod groups are configured as three groups spaced apart along the circumferential direction, comprising a first group consisting of the first rod, the fourth rod and the seventh rod, a second group consisting of the second rod, the fifth rod and the eighth rod, and a third group consisting of the third rod, the sixth rod and the ninth rod. Wherein, L4 < L7 and L4 < L1, L5 < L8 and L5 < L2, L6 < L9 and L6 < L3.

[0015] According to some embodiments of the present invention, each of the support rods is provided with barbs, and the axial height of each barb is the same.

[0016] According to some embodiments of the present invention, the barb has a connecting end connected to the support rod and a tip away from the support rod; from the connecting end to the tip, the width of the barb first decreases and then increases, forming a tapered structure.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 A perspective view of a sequentially woven anchoring disc according to one embodiment of the present invention; Figure 2 One of the front views of a sequentially woven anchoring disc in one embodiment of the present invention; Figure 3 This is a second front view of a sequentially woven anchoring disc according to one embodiment of the present invention; Figure 4 The third front view of the sequentially woven anchor plate in one embodiment of the present invention; Figure 5 Fourth front view of a sequentially woven anchoring disc in one embodiment of the present invention; Figure 6 A top view of a sequentially woven anchoring disc according to one embodiment of the present invention; Figure 7 This is a schematic diagram of a sequentially woven prefabricated braid in one embodiment of the present invention; Figure 8 This is a schematic diagram of a cross-woven prefabricated braided component according to one embodiment of the present invention; Figure 9 One of the partial front views of the cross-woven anchoring disc in one embodiment of the present invention; Figure 10 One of the partial front views of the cross-woven anchoring disc in one embodiment of the present invention; Figure 11 One of the partial front views of the cross-woven anchoring disc in one embodiment of the present invention; Figure 12 This is a top view of a cross-woven anchoring disc according to one embodiment of the present invention.

[0019] Reference numerals: Anchor plate 100; Connecting part 101; Support rod 102; Root part 103; Rod body 104; Barb 201; Connecting end 401; Tip 402; First rod 1; Second rod 2; Third rod 3; Fourth rod 4; Fifth rod 5; Sixth rod 6; Seventh rod 7; Eighth rod 8; Ninth rod 9. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] refer to Figure 1 , Figure 7 , Figure 8 as well as Figure 10The method of weaving the anchoring disc 100 according to a first aspect embodiment of the present invention, applied to an occluder, includes the following steps: A prefabricated braided component is provided, comprising a pre-formed connecting portion 101 and a plurality of support rods 102; the connecting portion 101 extends axially; the support rods 102 are evenly arranged circumferentially along the connecting portion 101, and have a root portion 103 connected to one end of the connecting portion 101 and a rod body 104 extending away from the root portion 103.

[0026] Based on the weaving sequence, the support rod 102 is divided into multiple support rod groups, wherein at least two support rods 102 in each support rod group have a preset length difference.

[0027] Weaving is performed sequentially according to the weaving order: the root 103 of the later woven support rod 102 is overlapped on the root 103 of the earlier woven support rod 102, so that the roots 103 of each support rod 102 overlap and converge to fix them. The rod body 104 radiates outward and forms an anchoring part with consistent configuration size, basically consistent end height, and evenly distributed around the central axis of the connecting part 101.

[0028] The weaving method of the anchoring disc 100 according to an embodiment of the present invention has at least the following beneficial effects: Since the anchoring disc 100 formed by weaving typically has one support rod 102 stacked on top of another, and each support rod 102 requires a different path, if each support rod 102 has the same length in the pre-formed state, the path difference caused by the stacking and weaving will result in different distances between the end of the rod body 104 of each support rod 102 away from the root 103 and the connecting part 101, causing the height of each end of the anchoring part formed by weaving to be different along the axial direction of the connecting part 101. This difference will cause the support rod 102 to be unable to apply anchoring force evenly, resulting in uneven force on the plugger in the cavity, thereby affecting the overall reliability of the fixation. After determining the weaving sequence, the anchoring disc 100 of this embodiment of the invention divides the support rod 102 into multiple support rod groups, and performs length differentiation processing on at least two support rods 102 in each support rod group to compensate for the difference in the required path caused by stacking during the weaving process, so that the ends of each support rod 102 are ultimately kept at the same height, thereby enabling multiple support rods 102 in the anchoring part to apply anchoring force evenly, improving the uniformity of force on the anchoring disc 100 and the reliability of overall fixation.

[0029] It should be noted that, in some embodiments, the prefabricated braided component is a nickel-titanium alloy tube. Figure 7 and Figure 8 This is a schematic diagram of the prefabricated braided component laid out. The tubular structure itself forms the connecting part 101, which is cut out on the tube using methods such as laser cutting. Figure 7 and Figure 8The shape of the unwoven support rod 102 is shown, as well as the process of making holes or cutting barbs 201 on the support rod 102, and then bending the support rod 102 to weave it, so that the support rod 102 is bent in a predetermined weaving sequence to form the shape shown. Figure 1 Anchor plate 100 is shown in the diagram. During weaving, using the central axis of the connecting part 101 as a reference, each support rod 102 must cross the central axis of the connecting part 101 and then bend to the opposite side, as shown. Figure 2 and Figure 6 As shown, this ensures that the roots 103 of each support rod 102 converge and are fixed. The consistent dimensions of the anchoring section refer to the fact that after weaving, each support rod 102... Figure 6 and Figure 12 The top view shown is evenly distributed, and the front view is as follows: Figure 2 As shown, the end of each support rod 102 furthest from the root 103 is equidistant from the end of the connecting part 101 along the axial direction of the connecting part 101 (i.e., the end heights of each support rod are basically the same). This ensures that the support rods 102 can apply anchoring force evenly, improving the uniformity of force on the anchoring plate 100 and the reliability of overall fixation. If the support rods 102 are of uniform length in the prefabricated woven state, the distance H between each support rod 102 after weaving will not be completely equal, resulting in uneven force distribution.

[0030] It should be noted that the length of support rod 102 refers to... Figure 7 and Figure 8 The length of the prefabricated woven parts, and the preset length difference setting, are also formed when the prefabricated woven parts are processed by laser cutting or other methods.

[0031] refer to Figure 7 In some embodiments of the present invention, within the same support rod group, the lengths of the support rods 102 are configured to increase sequentially according to their weaving order; the weaving order is the circumferential arrangement of the support rods 102. The method for weaving the circumferential arrangement of the support rods 102 is sequential weaving. In sequential weaving, each subsequent support rod 102 presses down on the adjacent preceding support rod 102. Therefore, due to the stacking effect, each subsequent support rod 102 needs a longer length. Therefore, increasing the length of the support rods 102 sequentially can effectively offset the extra length required for stacking, making the distance H between each ultimately formed support rod 102 and the end of the connecting portion 101 consistent. Furthermore, the dimensions of the rod body 104 of the support rods 102 radiating outwards are also consistent, referring to... Figure 2 and Figure 6, a part of the projection of the rod body 104 along the axial direction of the connecting portion 101 is located within the outer contour of the connecting portion, and this portion overlaps and converges together, and the paths of the rod bodies 104 are different; the other part is located outside the contour of the connecting portion 101, and this part is the outwardly radiating portion. The outward extension, downward bending or the angle and dimension of inward bending at the end of this part of each rod body are all consistent, forming the feature that the rod bodies 104 have consistent configuration and dimensions.

[0032] Reference Figures 2 to 7 , in some embodiments of the present invention, the support rods 102 include a first rod 1 to a ninth rod 9 sequentially arranged in the circumferential direction, the division of the support rod groups and the lengths of the support rods 102 are as follows: the first rod 1, the second rod 2 and the third rod 3 are divided into a first group, and the lengths are set to satisfy L1<L2<L3; the fourth rod 4, the fifth rod 5 and the sixth rod 6 are divided into a second group, and the lengths are set to satisfy L4<L5<L6, and L4<L1; the seventh rod 7, the eighth rod 8 and the ninth rod 9 are divided into a third group, and the lengths are set to satisfy L7<L8<L9, for the specific weaving path, see Figures 2 to 5 .

[0033] Reference Figures 8 to 12 , in some embodiments of the present invention, within the same support rod group, the support rods 102 are sequentially divided into the first woven rod, the intermediate woven rod and the last woven rod according to the weaving sequence, and the length of the support rods 102 is configured such that both the length of the first woven rod and the length of the last woven rod are greater than the length of the intermediate woven rod; wherein, the support rods 102 arranged at equal circumferential intervals are divided into one support rod group, and the weaving sequence is determined based on the circumferential arrangement sequence of the support rods 102 in the support rod group and the inter-group sequence of the support rod groups.

[0034] In some embodiments of the present invention, the support rods 102 include a first rod 1 to a ninth rod 9 sequentially arranged in the circumferential direction, the division of the support rod groups and the lengths of the support rods 102 are as follows: the first rod 1, the fourth rod 4 and the seventh rod 7 are divided into a first group, and the lengths are set to satisfy L4<L7, and L4<L1; the second rod 2, the fifth rod 5 and the eighth rod 8 are divided into a second group, and the lengths are set to satisfy L5<L8, and L5<L2; the third rod 3, the sixth rod 6 and the ninth rod 9 are divided into a third group, and the lengths are set to satisfy L6<L9, and L6<L3. The first rod 1, the fourth rod 4, the seventh rod 7, the second rod 2, the fifth rod 5, the eighth rod 8, the third rod 3, the sixth rod 6 and the ninth rod 9 are woven sequentially, that is, the ninth rod 9 is superimposed on the sixth rod 6, the sixth rod 6 is superimposed on the third rod 3, the third rod 3 is superimposed on the eighth rod 8, the eighth rod 8 is superimposed on the fifth rod 5, the fifth rod 5 is superimposed on the second rod 2, the second rod 2 is superimposed on the seventh rod 7, the seventh rod 7 is superimposed on the fourth rod 4, and the fourth rod 4 is superimposed on the first rod 1, for the specific weaving path, see Figures 9 to 11 .

[0035] Reference Figure 1 , Figure 7 and Figure 8 , the anchor disc 100 according to the embodiment of the second aspect of the present invention is manufactured by the weaving method of the anchor disc 100 according to any one of the embodiments of the first aspect, and comprises a connecting portion 101 and a plurality of support rods 102. The connecting portion 101 extends in the axial direction. The plurality of support rods 102 have root portions 103 connected to one end of the connecting portion 101 and uniformly arranged along the circumferential direction of the connecting portion 101, and rod bodies 104 extending away from the root portions 103. The support rods 102 are divided into a plurality of support rod groups, and at least two support rods 102 in each support rod group have a preset length difference. The root portions 103 of the respective support rods 102 overlap each other and are converged and fixed, and the rod bodies 104 of the respective support rods 102 radiate and expand outward to form an anchor portion with a consistent configuration size, substantially uniform end heights, and uniformly distributed around the central axis of the connecting portion 101. The support rods 102 in the anchor disc 100 are divided into a plurality of support rod groups, and at least two support rods 102 in each support rod group are subjected to length differentiation treatment, so as to compensate for the difference in required paths caused by overlapping during the weaving process, so that the ends of each support rod 102 finally remain at the same height, thereby enabling the plurality of support rods 102 in the anchor portion to uniformly apply anchoring force, and improving the stress uniformity of the anchor disc 100 and the reliability of overall fixation.

[0036] Reference Figures 2 to 7 , in some embodiments of the present invention, the support rods 102 comprise a first rod 1 to a ninth rod 9 sequentially arranged in the circumferential direction; the support rod groups are configured as three groups continuously distributed in the circumferential direction, comprising a first group consisting of the first rod 1, the second rod 2 and the third rod 3, a second group consisting of the fourth rod 4, the fifth rod 5 and the sixth rod 6, and a third group consisting of the seventh rod 7, the eighth rod 8 and the ninth rod 9. Wherein, L1<L2<L3, L4<L5<L6 and L4<L1, L7<L8<L9, for the weaving path thereof, please refer to Figures 2 to 5 . Dividing the support rods 102 into nine rods enables a moderate angle between each support rod 102, which facilitates weaving while ensuring supporting capacity and elastic force. If the number of support rods 102 is too large, the rods will be relatively dense and slender, which is not conducive to weaving; if the number of support rods 102 is too small, the supporting capacity of the processed anchor disc 100 will be insufficient, and each support rod 102 is relatively thick with poor elasticity.

[0037] Reference Figures 8 to 12, in some embodiments of the present invention, the support rod 102 includes a first rod 1 to a ninth rod 9 arranged sequentially in the circumferential direction; the support rod groups are configured as three groups spaced apart in the circumferential direction, comprising a first group formed by the first rod 1, the fourth rod 4 and the seventh rod 7, a second group formed by the second rod 2, the fifth rod 5 and the eighth rod 8, and a third group formed by the third rod 3, the sixth rod 6 and the ninth rod 9. Wherein, L4<L7 and L4<L1, L5<L8 and L5<L2, L6<L9 and L6<L3, for the weaving path thereof, see specifically Figures 9 to 11 .

[0038] reference Figure 2 and Figure 7 , in some embodiments of the present invention, each support rod is provided with a barbs 201, and after the anchoring disc is deployed, the height of each barb in the axial direction is the same. The barb 201 has a connecting end 401 connected to the support rod 102 and a tip 402 away from the support rod 102; from the connecting end 401 to the tip 402, the width of the barb 201 first decreases and then increases, forming a waisted structure. The barbs 201 function for anchoring and fixing. The tip of the barb 201 will pierce the inner wall tissue, so that the anchoring disc 100 is firmly fixed in the cavity, preventing it from shifting or falling off under the impact of blood flow or the beating of the heart. At the same time, the design of the barbs 201 can adapt to the uneven and irregular shape of the inner wall of human tissue, improve the stability and adherence effect of the anchoring disc 100, and reduce the risk of the occluder falling off. The waisted design of the anchor barbs is to facilitate bending molding during processing, improve the structural stability of the anchor barbs after bending, enable the anchor barbs to maintain a relatively stable angle and are not easy to deform after bending, and enhance the anchoring and fixing ability thereof.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made without departing from the scope of the present invention within the knowledge possessed by a person skilled in the art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other under the condition of no conflict.

Claims

1. A method for weaving an anchoring disc, applied to an occluder, characterized in that, comprising the following steps: providing a prefabricated woven member, which comprises a preformed connecting portion and a plurality of support rods; the connecting portion extends along an axial direction; the support rods are uniformly arranged along a circumferential direction of the connecting portion, and have a root portion connected to one end of the connecting portion and a rod body extending away from the root portion; dividing the support rods into a plurality of support rod groups based on a weaving sequence, wherein at least two support rods in each support rod group have a preset length difference; performing weaving sequentially according to the weaving sequence: overlapping the root portion of a subsequently woven support rod on the root portion of a previously woven support rod, so that the root portions of the support rods are overlapped with each other, converged and fixed, and the rod bodies radiate outward to form an anchoring portion with consistent configuration size, consistent end height and uniformly distributed around a central axis of the connecting portion.

2. The method for weaving the anchor plate according to claim 1, characterized in that, in the same support rod group, the lengths of the support rods are configured to increase in accordance with the weaving sequence thereof; the weaving sequence is an arrangement sequence of the support rods along the circumferential direction.

3. The method for weaving the anchor plate according to claim 2, characterized in that, the support rods comprise a first rod to a ninth rod arranged sequentially along the circumferential direction, and the division of the support rod groups and the lengths of the support rods are as follows: dividing the first rod, the second rod and the third rod into a first group, and setting the lengths thereof to satisfy L1<L2<L3; dividing the fourth rod, the fifth rod and the sixth rod into a second group, and setting the lengths thereof to satisfy L4<L5<L6 and L4<L1; dividing the seventh rod, the eighth rod and the ninth rod into a third group, and setting the lengths thereof to satisfy L7<L8<L9.

4. The method for weaving the anchor plate according to claim 1, characterized in that, in the same support rod group, the support rods are sequentially divided into a first-woven rod, an intermediate-woven rod and a last-woven rod according to the weaving sequence, and the lengths of the support rods are configured such that the lengths of both the first-woven rod and the last-woven rod are greater than the length of the intermediate-woven rod; wherein the support rods arranged at equal intervals along the circumferential direction are divided into one support rod group, and the weaving sequence is determined based on the circumferential arrangement sequence of the support rods in the support rod group and an inter-group sequence of the support rod groups.

5. The method for weaving the anchor plate according to claim 4, characterized in that, the support rods comprise a first rod to a ninth rod arranged sequentially along the circumferential direction, and the division of the support rod groups and the lengths of the support rods are as follows: dividing the first rod, the fourth rod and the seventh rod into a first group, and setting the lengths thereof to satisfy L4<L7 and L4<L1; dividing the second rod, the fifth rod and the eighth rod into a second group, and setting the lengths thereof to satisfy L5<L8 and L5<L2; dividing the third rod, the sixth rod and the ninth rod into a third group, and setting the lengths thereof to satisfy L6<L9 and L6<L3.

6. An anchoring disc, manufactured by the weaving method of any one of claims 1 to 5, characterized in that, comprising: a connecting portion extending along an axial direction; a plurality of support rods, wherein the plurality of support rods have root portions connected to one end of the connecting portion and uniformly arranged along the circumferential direction of the connecting portion, and rod bodies extending away from the root portions; wherein the support rods are divided into a plurality of support rod groups, and at least two support rods in each support rod group have a preset length difference; the root portions of the support rods are overlapped with each other, converged and fixed, and the rod bodies of the support rods radiate and expand outward to form an anchoring portion with consistent configuration size, consistent end height and uniformly distributed around the central axis of the connecting portion.

7. The anchoring disk according to claim 6, characterized in that, The support rods comprise a first rod to a ninth rod arranged sequentially in the circumferential direction; The support rod groups are configured as three groups continuously distributed in the circumferential direction, comprising a first group consisting of the first rod, the second rod and the third rod, a second group consisting of the fourth rod, the fifth rod and the sixth rod, and a third group consisting of the seventh rod, the eighth rod and the ninth rod; wherein L1<L2<L3, L4<L5<L6 and L4<L1, L7<L8<L9.

8. The anchoring disk according to claim 6, characterized in that, The support rods comprise a first rod to a ninth rod arranged sequentially in the circumferential direction; The support rod groups are configured as three groups spaced apart in the circumferential direction, comprising a first group consisting of the first rod, the fourth rod and the seventh rod, a second group consisting of the second rod, the fifth rod and the eighth rod, and a third group consisting of the third rod, the sixth rod and the ninth rod; wherein L4<L7 and L4<L1, L5<L8 and L5<L2, L6<L9 and L6<L3.

9. The anchoring disc according to claim 6, characterized in that, Each of the support rods is provided with a barb, and the axial heights of the barbs are the same.

10. The anchoring disc according to claim 9, characterized in that, The barb has a connecting end connected with the support rod and a tip end away from the support rod; from the connecting end to the tip end, the width of the barb decreases first and then increases, forming a waisted structure.

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