CN219430263U - Bracket braiding tool - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, and provides a bracket braiding tool, which comprises the following components: the tool comprises a tool main body and a winding column; the frock main part has and weaves the inner chamber, the wrapping post have a plurality of and set up in weave on the inner wall of inner chamber, the wrapping post is configured as: the braiding cavity formed by the winding posts is of a structure with a narrow middle and large two ends. So dispose, the support of above-mentioned structure is woven the frock and is had the inner chamber of weaving, and the wrapping post sets up in weaving the inner chamber for weave the silk thread and have the space of inwards deformation, and can obtain certain support, can effectively weave and design the support of the big structure in middle narrow both ends.

Description

Bracket braiding tool

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a bracket braiding tool.

Background

Degradable sinus drug stents are used in patients suffering from chronic sinusitis and performing endoscopic rhinosurgery because of their degradability and drug release properties. Stents may be used to support bodily structures such as nasal passages, sinus cavities, and the like. Along with the increase of patients suffering from chronic nasal sinuses such as nasal polyps and the like, the nasal sinusitis operation has become one of the main treatment means. However, the post-operation treatment is needed, and the implanted degradable nasal sinus stent can be used as a better post-operation treatment method for preventing nasal adhesion and other symptoms.

At present, the domestic sinus support is mainly of a straight cylinder type, the structure and the shape are simple, so that a tool mould for weaving the sinus support is of a cylindrical structure, and a wire is attached to the outer wall of the mould to form the support of the straight cylinder structure.

The nasal sinus opening is narrow after operation, the nasal sinus cavity is wide, the nasal sinus channel is not straight tube-shape, in order to stabilize the bracket to release the medicine, the bracket which is adapted to the shape of the nasal sinus channel is needed. Therefore, the corresponding bracket is of a structure with narrow middle and large two ends, and the existing tooling die of the cylindrical structure cannot weave the bracket.

Therefore, there is a need for a stent braiding tool to accommodate braiding of stents of the above complex structure.

Disclosure of Invention

The utility model provides a bracket braiding tool, which is provided with a braiding inner cavity, wherein a winding post is arranged in the braiding inner cavity, so that braiding wires have inward deformation space, a certain support can be obtained, and a bracket with a structure with a narrow middle and two large ends can be effectively braided and shaped.

The tooling die comprises: the tool comprises a tool main body and a winding column;

the frock main part has and weaves the inner chamber, the wrapping post have a plurality of and set up in weave on the inner wall of inner chamber, the wrapping post is configured as: the braiding cavity formed by the winding posts is of a structure with a narrow middle and large two ends.

Optionally, the inner wall of the braiding cavity comprises a first winding section, a second winding section and a forming section which are arranged along the axial direction, the forming section is positioned between the first winding section and the second winding section, and the inner diameter of the forming section is smaller than the inner diameter of the first winding section and the inner diameter of the second winding section; the winding posts are respectively arranged on the first winding section and the second winding section.

Optionally, the molding section is provided with an annular groove along the circumferential direction.

Optionally, the first winding section gradually becomes smaller in inner diameter from one axial end to the other axial end; the second winding section gradually becomes smaller in inner diameter from one axial end to the other axial end; the inner diameters of the small-diameter ends of the first winding section and the second winding section are the same as the inner diameter of the forming section and are coaxially connected.

Optionally, the bracket braiding tool further comprises a wire fixing piece, and the wire fixing piece is arranged on the tool main body and used for fixing the head end and the tail end of the wire.

Optionally, the winding post is inclined towards a side far away from the forming section along the axial direction; and/or the winding post is provided with an anti-falling component.

Optionally, the tool main body comprises a first main body and a second main body, and the first main body and the second main body are detachably connected.

Optionally, the first body and the second body are in an annular structure and are detachably connected along an axial direction, or the first body and the second body are in a semi-annular structure and are detachably connected along a radial direction.

Optionally, the first winding section and the second winding section are provided with mounting holes, and a winding post is detachably inserted in the mounting holes.

Optionally, the mounting hole is the bell mouth, from the inner wall of frock main part to the outer wall direction, the internal diameter of mounting hole diminishes gradually, the wrapping post is from axial one end to the other end, and its external diameter diminishes gradually, just the outer peripheral face of wrapping post with the inner wall of mounting hole is conformal laminating.

To sum up, the tooling mold comprises: the tool comprises a tool main body and a winding column; the frock main part has and weaves the inner chamber, the wrapping post have a plurality of and set up in weave on the inner wall of inner chamber, the wrapping post is configured as: the braiding cavity formed by the winding posts is of a structure with a narrow middle and large two ends.

So dispose, the support of above-mentioned structure is woven the frock and is had the inner chamber of weaving, and the wrapping post sets up in weaving the inner chamber for weave the silk thread and have the space of inwards deformation, and can obtain certain support, can effectively weave and design the support of the big structure in middle narrow both ends.

Drawings

Fig. 1 is a schematic perspective view of a bracket braiding tool according to a first embodiment of the present utility model;

fig. 2 is a schematic cross-sectional structural view of a bracket braiding tool according to a first embodiment of the present utility model;

fig. 3 is a schematic diagram of a knitting structure of a stent knitting tool according to a first embodiment of the present utility model;

fig. 4 is a schematic perspective view of a bracket braiding tool according to a second embodiment of the present utility model;

fig. 5 is a schematic perspective view of a bracket braiding tool according to a third embodiment of the present utility model;

fig. 6 is a schematic perspective view of a bracket braiding tool according to a fourth embodiment of the present utility model;

fig. 7 is a schematic cross-sectional structural view of a bracket braiding tool according to a fourth embodiment of the present utility model;

fig. 8 is a schematic cross-sectional structural view of a bracket braiding tool according to a fifth embodiment of the present utility model;

fig. 9 is a schematic perspective view of a winding post according to a sixth embodiment of the present utility model;

fig. 10 is a schematic perspective view of a bracket braiding tool according to a seventh embodiment of the present utility model;

fig. 11 is a schematic perspective view of a bracket braiding tool according to an eighth embodiment of the present utility model;

wherein, the reference numerals are as follows:

101-a tool main body; 1011-mounting holes; 1012-grooves; 1013-convexity; 1014-recess; 102-winding posts; 103-stud; 104-winding a column;

111-a first winding segment; 112-a second winding segment; 113-a shaping section;

a. b-position of the wire;

positions of A1, A2, A3, A4, A5, A6, A7, B1, B2, B3, B4, B5, B6, B7-winding posts.

Detailed Description

The bracket braiding tool provided by the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

In the present utility model, "proximal" and "distal" are relative orientations, relative positions, directions of elements or actions relative to one another from the perspective of a physician using the product, although "proximal" and "distal" are not intended to be limiting, and "proximal" generally refers to the end of the product that is proximal to the physician during normal operation, and "distal" generally refers to the end that first enters the patient.

In the utility model, the outer diameter and the inner diameter correspond to the diameter size for a circular structure, the inner diameter refers to the diameter of an inscribed circle of the circular structure for a non-circular structure, and the outer diameter refers to the diameter of an circumscribed circle of the circular structure; the axial direction corresponds to the direction in which the axis is located for cylindrical rods, and corresponds to the length direction of rods for non-cylindrical rods.

As used in this disclosure, the singular forms "a," "an," and "the" include plural referents, the term "or" are generally used in the sense of comprising "and/or" and the term "several" are generally used in the sense of comprising "at least one," the term "at least two" are generally used in the sense of comprising "two or more," and the term "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance or number of features indicated. Thus, a feature defining "a first", "a second", "a third" may include one or at least two such features, either explicitly or implicitly. Furthermore, as used in this disclosure, "mounted," "connected," and "disposed" with respect to another element should be construed broadly to mean generally only that there is a connection, coupling, mating or transmitting relationship between the two elements, and that there may be a direct connection, coupling, mating or transmitting relationship between the two elements or indirectly through intervening elements, and that no spatial relationship between the two elements is to be understood or implied, i.e., that an element may be in any orientation, such as internal, external, above, below, or to one side, of the other element unless the context clearly dictates otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, directional terms, such as above, below, upper, lower, upward, downward, left, right, etc., are used with respect to the exemplary embodiments as they are shown in the drawings, upward or upward toward the top of the corresponding drawing, downward or downward toward the bottom of the corresponding drawing.

In the utility model, the axial direction is based on the braiding inner cavity of the tool main body 101.

Example 1

The embodiment provides a frock is woven to support, includes: a tooling main body 101 and a winding post 102;

the tool body 101 has a braiding inner cavity, the winding posts 102 have a plurality of winding posts and are arranged on the inner wall of the braiding inner cavity 101, and the winding posts 102 are configured to: the braiding cavity formed by the winding posts 102 is of a structure with a narrow middle and large two ends. The winding posts 102 can be reasonably arranged to form corresponding braiding cavities, for example, three rows of winding posts 102 can be axially arranged in the braiding cavity, and the braiding cavities can be controlled by adjusting the positions of the wires wound on the winding posts, so that the braided stent is consistent with the shapes of the braiding cavities.

Further, the inner wall of the braiding cavity comprises a first winding section 111, a second winding section 112 and a forming section 113 which are arranged along the axial direction, the forming section 113 is positioned between the first winding section 111 and the second winding section 112, and the inner diameter of the forming section 113 is smaller than the inner diameters of the first winding section 111 and the second winding section 112;

the winding post 102 is respectively disposed on the first winding section 111 and the second winding section 112.

The specific structure of the tool main body 101 is not limited herein, the shape of the braiding inner cavity of the tool main body 101 adapted to the support is set to be an hourglass shape, and the outer contour of the tool main body 101 can be adjusted based on the adaptability of the actual use requirement, for example, a cuboid structure or a cylindrical structure. In this embodiment, the outer contour of the tool main body 101 is set to be a cylindrical structure, and the braiding inner cavity of the tool main body 101 is coaxially set with the outer contour thereof.

The structure and the installation direction of the winding post 102 are not limited herein, for example, the winding post 102 may be a square post, a cylinder or other shapes, the installation direction of the winding post 102 is based on the prevention of the wire from falling, and the installation direction of the specific winding post 102 may be adjusted based on the adaptability of the actual winding structure.

Referring to fig. 1, a first wire winding section 111, a second wire winding section 112 and a forming section 113 are coaxially arranged, a knitting inner cavity of the tool main body 101 is in an hourglass shape with small middle and large two ends, after a wire is wound around a winding column 102 at the position of the first wire winding section 111, the wire is wound around the winding column 102 at the position of the second wire winding section 112 after extending along the inner walls of the first wire winding section 111, the forming section 113 and the second wire winding section 112, and the wire is routed along the knitting inner cavity, so that the knitted support forms a shape adapting to the current situation of the knitting inner cavity, and the support with a complex structure can be effectively knitted and shaped.

Further, the first winding section 111 gradually decreases in inner diameter from one axial end to the other axial end; the second winding section 112 gradually becomes smaller in inner diameter from one axial end to the other axial end; the inner diameters of the small diameter ends of the first winding section 111 and the second winding section 112 are the same as the inner diameter of the forming section 113 and are coaxially connected.

Referring to fig. 1, the first wire winding section 111 and the second wire winding section 112 are tapered cavities and are smoothly connected with the forming section 113, so that the wires can be attached to the inner walls of the first wire winding section 111, the second wire winding section 112 and the forming section 113 in the weaving process, thereby being more beneficial to the forming of the bracket.

Further, the molding section 113 is provided with an annular groove 1012 in the circumferential direction. The yarn will have a crossing position during the braiding process, the crossing position is located at the forming section 113, the groove 1012 is adapted to the crossing position of the yarn, and the crossing position is in an overhead state, which is beneficial to the later process of bonding the yarn crossing point.

Further, the bracket braiding tool further comprises a wire fixing piece, and the wire fixing piece is arranged on the tool main body 101 and used for fixing the head end and the tail end of the wire.

In the process of knitting the support, the head and the tail of the silk thread are required to be fixed, so that the silk thread is in a tensioning state in the process of knitting, and a good forming effect is ensured. The specific structure of the wire fixing member is not limited herein, and for example, the wire fixing member may be a clamping structure for clamping and fixing the wire, or may be a winding structure for winding and fixing the wire. Referring to fig. 1, in this embodiment, the wire fixing member includes two studs 103, a groove body is axially formed on the outer wall of the tool main body 101, two threaded holes penetrating through the braiding inner cavity are formed on the bottom of the groove body, the two threaded holes are axially arranged, and the two studs are respectively in threaded connection with the two threaded holes. Wherein the two threaded holes correspond to the head end and the tail end of the wire respectively, the head end of the wire passes through one of the threaded holes into the braiding cavity, and one of the studs 103 is in threaded connection with the threaded hole to fix the head end of the wire; after the silk thread is woven, the tail end of the silk thread passes through the other threaded hole, and at the moment, the other stud is in threaded connection with the threaded hole so as to fix the tail end of the silk thread.

Further, the first winding section 111 and the second winding section 112 are provided with mounting holes 1011, and the mounting holes 1011 are detachably inserted with a winding post 102.

The specific structure of the mounting hole 1011 is not particularly limited, and may be, for example, a cylindrical hole, a square hole, etc., and the specific structure of the mounting hole 1011 is adapted to the shape setting of the winding post 102, so that the detachable installation of the winding post 102 is facilitated by the setting of the mounting hole 1011, the winding post 102 is convenient to detach after the weaving is completed, and the taking out of the bracket after the weaving is further facilitated.

Referring to fig. 1, in this embodiment, the mounting hole 1011 is a tapered hole, the inner diameter of the mounting hole 1011 gradually decreases from the inner wall of the tool body 101 to the outer wall, the outer diameter of the winding post 102 gradually decreases from one axial end to the other axial end, and the outer circumferential surface of the winding post 102 is in conformal fit with the inner wall of the mounting hole. The mounting hole 1011 is a through hole penetrating the inside and the outside of the tool main body 101, the winding post 102 is inserted into the mounting hole 1011 from inside to outside and is naturally positioned and locked by the conical mounting hole 1011, and the mounting and positioning of the winding post 102 are convenient by the cooperation of the conical mounting hole 1011 and the round table-shaped winding post 102.

The installation direction of the winding post 102 is not limited, and the installation direction of the winding post 102 is consistent with the opening direction of the installation hole 1011, and as shown in fig. 1 and 2, the installation hole 1011 is opened in the radial direction, and the winding post 102 is adaptively extended in the radial direction after being inserted into the installation hole 1011. The wire is wound around the winding post 102 and then is attached to the inner wall of the first winding wire segment 111 or the second winding wire segment 112 to extend obliquely, and at this time, the wire is located at the position of the winding post 102 and is subjected to a radially inward pulling force, so that the wire is easily separated from the winding post in the radial direction. Therefore, the winding post 102 may be provided with a groove to prevent the wire from being pulled out of the winding post radially inward, or the shape and structure of the winding post may be improved to prevent the wire from being pulled out of the winding post.

Further, at least one row of winding posts 102 is disposed on each of the first winding segment 111 and the second winding segment 112, and a plurality of winding posts 102 are disposed in each row and each winding post 102 is arranged along the circumferential direction.

The number of the setting rows of the winding posts 102 is not limited, and the setting is based on the adaptability of the requirement of the stent knitting, and in this embodiment, the stent is applied in the sinus passageway, and based on the knitting requirement of the stent, a row of the winding posts 102 are disposed on the first winding segment 111 and the second winding segment 112.

Further, each row includes an odd number of winding posts 102, the odd number being greater than 1; each winding post 102 arranged on the first winding segment 111 corresponds to each winding post 102 arranged on the second winding segment 112 one by one and is opposite to each other in axial direction.

The number of winding posts 102 in each row is determined according to the bracket structure and the use requirement, and preferably the number of winding posts 102 in each row is 7, 9 or 11.

In this embodiment, 7 winding posts are provided in each row, please refer to fig. 3, which is a schematic diagram of an unfolding structure of two rows of winding posts, wherein the winding post 102 located in the first winding section 111 is a row, and the row has 7 winding posts A1, A2, A3, A4, A5, A6 and A7; the winding posts 102 located on the second winding segment 112 are in a row B, 7 winding posts are respectively in a row B1, B2, B3, B4, B5, B6 and B7, during the braiding process, the head end of the wire is firstly fixed through one stud 103, then is wound through A1 and then sequentially winds around the weaving cavity of the tooling main body 101 in a V-shaped manner, the wire is continuously wound around the weaving cavity of the tooling main body 101 in a circle, then sequentially passes through a position a in the figure and sequentially winds around the weaving cavity of the tooling main body 101 in a V-shaped manner, at this time, the wire is wound around the weaving cavity of the tooling main body 101 for two circles, and because the number of winding posts 102 in each row is odd, the winding posts 102 wound around the first circle and the second circle of the wire are not overlapped, and then the tail end of the wire extends from the position B and is fixed by the other stud 103.

Example two

The difference between this embodiment and the first embodiment is that the fixing members are arranged in different manners; referring to fig. 4, the fixing member is still two studs 103, which are different in that the outer wall of the tool body 101 has an axially extending protrusion, and two threaded holes are formed on the protrusion. In other alternative embodiments, the specific structure of the opening position of the threaded hole can be adaptively adjusted based on actual requirements.

Example III

The embodiment differs from the first embodiment in the structure of the wire fixing member; referring to fig. 5, the wire fixing member is a winding column 104, the winding column 104 is fixedly connected to one axial end of the tool main body 101, an annular winding groove is formed on the outer wall of the winding column 104, and the wire can be wound on the winding column 104 and the head and tail ends of the wire are fixed by knotting. In other alternative embodiments, the winding post 104 may be further connected to other parts of the tool main body 101 based on actual use requirements, which will not be described in detail herein.

Example IV

This embodiment is different from the first embodiment in that the arrangement direction of the winding post 102 and the mounting hole 1011 is different, as shown in fig. 6 and 7, in which the mounting hole 1011 is inclined in the axial direction to the side away from the molding section 113; and the axial direction of the mounting hole 1011 is between the axial direction and the radial direction of the tool main body 101, and correspondingly, after the winding post 102 is inserted into the mounting hole 1011, the winding post 102 is inclined along the axial direction to the side far away from the forming section 113. This structure makes it difficult for the wire to be pulled out of the winding post 102 in the radial direction when the wire is wound around the winding post 102, and in this embodiment, the structure of the wire fixing member is not shown, and it may be identical to that of the first, second or third embodiments.

Example five

The difference between this embodiment and the first embodiment is that the arrangement direction of the winding post 102 and the mounting hole 1011 is different, please refer to fig. 8, wherein the mounting hole 1011 is opened along the axial direction of the tool body 101, and accordingly, after the winding post 102 is inserted into the mounting hole 1011, the winding post 102 extends along the axial direction. This structure makes it difficult to take out the winding post 102 in the radial direction when the wire is wound around the winding post 102.

Example six

The difference between this embodiment and the first embodiment is that the structure of the winding post 102 is different, please refer to fig. 9, in which an anti-falling member is further disposed on the outer wall of the winding post 102 near the large diameter end thereof, the anti-falling member is configured to block the wire from sliding out of the winding post 102, and the anti-falling member may be a block, a rod or other current protruding structures, and the structure of the anti-falling member is not particularly limited herein. In fig. 9, the anti-falling member adopts a cylindrical structure, and an included angle is formed between the anti-falling structure and the winding post 102, so that when the wire is wound on the winding post 102, the anti-falling structure is blocked on the wire in the radial direction to prevent the wire from falling out of the winding post 102 in the radial direction.

Example seven

This embodiment differs from the first embodiment in that the tool body 101 is a detachable structure, and the tool body 101 includes a first body and a second body, and the first body and the second body are detachably connected.

In the present embodiment, the material of the tool main body 101 is not limited, and a high temperature resistant material is preferable, for example, a metal material such as aluminum alloy is used.

In this embodiment, the connection manner of the first body and the second body is not limited, and may be, for example, a bolt connection, a snap connection, a mortise-tenon connection, or other known detachable connection manners.

Referring to fig. 10, the tool main body 101 is axially divided into a first main body and a second main body, the first main body and the second main body are both in an annular structure, axial end parts of the first main body and the second main body are detachably assembled along the axial direction to form the tool main body 101, wherein the first main body and the second main body are connected through a mortise and tenon structure, the axial end part of the first main body is provided with a protrusion 1013, the axial end part of the second main body is provided with a recess 1014, the first main body and the second main body are axially butted, and the protrusion 1013 is clamped in the recess 1014. In other alternative embodiments, the first body and the second body may be detachably connected by other known connection methods, which will not be described in detail herein.

The tool main body 101 is arranged into a split detachable connection structure, so that the disassembly of the molded bracket is facilitated, and the phenomenon that the bracket is damaged in the disassembly process of the bracket from the tool main body 101 is improved;

in this embodiment, the structure of the wire fixing member is not shown, and it may be identical to that of the first, second or third embodiment.

Example eight

The difference between this embodiment and the seventh embodiment is that the tool body 101 is of a detachable structure. Referring to fig. 11, a tool main body 101 is radially divided into a first main body and a second main body, the first main body and the second main body are both in a semi-annular structure, and radial end portions of the first main body and the second main body are detachably assembled along a radial direction to form the tool main body 101. Wherein the first body and the second body are connected by a mortise and tenon structure, the radial end of the first body is provided with a convex part 1013, the radial end of the second body is provided with a concave part 1014, wherein the first body and the second body are radially butted, and the convex part 1013 is clamped in the concave part 1014. By means of radial assembly, the inner braiding cavity of the tool main body 101 is opened in the radial direction, and then the braided support is taken out. In other alternative embodiments, the first body and the second body may be detachably connected by other known connection methods, which will not be described in detail herein.

In this embodiment, the structure of the wire fixing member is not shown, and it may be identical to that of the first, second or third embodiment.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims (10)

1. Frock is woven to support, its characterized in that includes: the tool comprises a tool main body and a winding column;

the frock main part has and weaves the inner chamber, the wrapping post have a plurality of and set up in weave on the inner wall of inner chamber, the wrapping post is configured as: the braiding cavity formed by the winding posts is of a structure with a narrow middle and large two ends.

2. The stent braiding tool of claim 1, wherein an inner wall of the braiding lumen comprises a first wire winding section, a second wire winding section, and a shaping section arranged in an axial direction, the shaping section being located between the first wire winding section and the second wire winding section, an inner diameter of the shaping section being smaller than an inner diameter of the first wire winding section and an inner diameter of the second wire winding section; the winding posts are respectively arranged on the first winding section and the second winding section.

3. The stent braiding tool of claim 2, wherein the forming section is circumferentially provided with an annular groove.

4. The stent braiding tool of claim 2, wherein the first wire winding section is tapered from one axial end to the other axial end; the second winding section gradually becomes smaller in inner diameter from one axial end to the other axial end; the inner diameters of the small-diameter ends of the first winding section and the second winding section are the same as the inner diameter of the forming section and are coaxially connected.

5. The stent braiding tool of claim 1, further comprising a wire securing member disposed on the tool body for securing the head and tail ends of the wire.

6. The stent braiding tooling of claim 2, wherein the winding post is inclined axially to a side remote from the forming section; and/or the winding post is provided with an anti-falling component.

7. The stent braiding tool of claim 1, wherein the tool body comprises a first body and a second body, the first body and the second body being detachably connected.

8. The stent braiding tool of claim 7, wherein the first body and the second body are in a ring-shaped structure and are detachably connected in an axial direction, or wherein the first body and the second body are in a semi-ring-shaped structure and are detachably connected in a radial direction.

9. The fixture of claim 2, wherein the first wire winding section and the second wire winding section are provided with mounting holes, and a winding post is detachably inserted into the mounting holes.

10. The fixture of claim 9, wherein the mounting hole is a tapered hole, the inner diameter of the mounting hole is gradually reduced from the inner wall of the fixture body to the outer wall, the winding post is gradually reduced from one axial end to the other axial end, and the outer peripheral surface of the winding post is in conformal fit with the inner wall of the mounting hole.