Silicone bracket

Abstract

The present invention relates to a silicone stent, comprising a stent body and a film, wherein the stent body is a tubular structure with openings at both ends, a plurality of flanges are arranged at intervals on the outer wall of the stent body, and a positioning area is provided on the stent body, wherein the stent body is provided with a plurality of positioning grooves in the positioning area, the plurality of positioning grooves are evenly arranged, and fill the positioning area, wherein the positioning area is located on the outer wall of the stent body and between the plurality of flanges; or, the positioning area is located on the inner wall of the stent body; the film covers the positioning area of ​​the stent body and seals the plurality of positioning grooves to form a plurality of sealed cavities in the positioning area. Compared with the traditional silicone stent, the above silicone stent has the advantages of simple positioning method, no trauma, and convenient clinical application.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a silicone stent. Background Art

[0002] Airway stenosis is a serious and fatal disease. The current treatment method is to implant a stent to open the narrowed part of the airway and restore normal breathing function. Stent products are usually made of silicone, plastic or metal. Among them, silicone stents are widely used because of their low price and convenient removal after implantation. However, after the implantation of traditional silicone stents, clinicians need to use a rigid bronchoscope to position them under general anesthesia. This positioning method is complicated, traumatic and inconvenient in clinical application. Summary of the invention

[0003] Based on this, it is necessary to provide a silicone stent with simple positioning, non-traumatic and convenient clinical application.

[0004] A silicone stent, comprising:

[0005] The bracket body is a tubular structure with two ends open, a plurality of flanges are arranged at intervals on the outer wall of the bracket body, the bracket body has a positioning area, the bracket body has a plurality of positioning grooves in the positioning area, the plurality of positioning grooves are evenly arranged and fill the positioning area, wherein the positioning area is located on the outer wall of the bracket body and between the plurality of flanges; or the positioning area is located on the inner wall of the bracket body;

[0006] The film covers the positioning area of ​​the bracket body and seals the plurality of positioning grooves to form a plurality of sealed cavities in the positioning area.

[0007] The above-mentioned silicone stent includes a stent body and a film. The stent body is a tubular structure with openings at both ends. A plurality of flanges are arranged at intervals on the outer wall of the stent body. The stent body has a positioning area. The stent body has a plurality of positioning grooves in the positioning area. The plurality of positioning grooves are evenly arranged and fill the positioning area. The positioning area is located on the outer wall of the stent body and between the plurality of flanges; or, the positioning area is located on the inner wall of the stent body; the film covers the positioning area of ​​the stent body and seals the plurality of positioning grooves to form a plurality of sealed cavities in the positioning area. Under the action of ultrasound, the gas in the sealed cavity vibrates and reflects a strong ultrasonic signal to distinguish the absorption and reflection of ultrasound by the airway tissue, thereby detecting and marking the contour of the positioning area, and then positioning the silicone stent. Compared with the traditional silicone stent, the above-mentioned silicone stent has the advantages of simple positioning method, non-traumatic, and convenient clinical application.

[0008] In one embodiment, the positioning area is in a strip shape, and an extending direction of the positioning area is the same as an extending direction of the bracket body.

[0009] In one embodiment, there are multiple positioning areas and multiple films, the multiple positioning areas are arranged at intervals and in parallel, the extension directions of the multiple positioning areas are the same as the extension direction of the bracket body, and each film is covered on one positioning area.

[0010] In one embodiment, the positioning area is in a strip shape, and an extension direction of the positioning area is perpendicular to an extension direction of the bracket body.

[0011] In one embodiment, there are multiple positioning areas and multiple films, the multiple positioning areas are spaced apart and arranged in parallel, the extension directions of the multiple positioning areas are perpendicular to the extension direction of the bracket body, and each film is covered on one positioning area.

[0012] In one embodiment, there are multiple positioning areas and films, and all of them are in strip shape. A part of the multiple positioning areas are arranged at intervals and in parallel, and an extension direction of a part of the multiple positioning areas is the same as an extension direction of the bracket body. Another part of the multiple positioning areas are arranged at intervals and in parallel, and an extension direction of another part of the multiple positioning areas is perpendicular to the extension direction of the bracket body, so that a part of the multiple positioning areas intersects with another part of the multiple positioning areas, and each film is covered on one of the positioning areas.

[0013] In one of the embodiments, a portion of the plurality of positioning areas are arranged evenly, and another portion of the plurality of positioning areas are arranged evenly.

[0014] In one embodiment, there are multiple positioning areas and multiple films, a portion of the multiple positioning areas are located on the outer wall of the bracket body and between the multiple flanges, and another portion of the multiple positioning areas are located on the inner wall of the bracket body. The positioning area on the outer wall of each bracket body corresponds to a positioning area on the inner wall of the bracket body, and each film cover is arranged on one of the positioning areas.

[0015] In one embodiment, the plurality of positioning areas are all in the shape of strips, a portion of the plurality of positioning areas located on the outer wall of the bracket body are arranged at intervals and in parallel, a portion of the plurality of positioning areas located on the outer wall of the bracket body extends in the same direction as the bracket body, another portion of the plurality of positioning areas located on the outer wall of the bracket body is arranged at intervals and in parallel, and another portion of the plurality of positioning areas located on the outer wall of the bracket body extends in a direction perpendicular to the bracket body, so that a portion of the plurality of positioning areas located on the outer wall of the bracket body intersects with another portion of the plurality of positioning areas located on the outer wall of the bracket body, and the positioning areas located on the inner wall of the bracket body are arranged at intervals and in parallel. A portion of the multiple positioning areas are arranged at intervals and in parallel, an extension direction of a portion of the multiple positioning areas located on the inner wall of the bracket body is the same as the extension direction of the bracket body, another portion of the multiple positioning areas located on the inner wall of the bracket body is arranged at intervals and in parallel, and an extension direction of another portion of the multiple positioning areas located on the inner wall of the bracket body is perpendicular to the extension direction of the bracket body, so that a portion of the multiple positioning areas located on the inner wall of the bracket body intersects with another portion of the multiple positioning areas located on the inner wall of the bracket body, and each of the positioning areas located on the outer wall of the bracket body corresponds to a positioning area located on the inner wall of the bracket body.

[0016] In one embodiment, the thickness of the film is 0.1 mm to 0.2 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a silicone stent according to one embodiment;

[0018] Figure 2 for Figure 1 A schematic structural diagram of a stent body of the silicone stent shown;

[0019] Figure 3 for Figure 2 A schematic structural diagram of the bracket body at another angle shown;

[0020] Figure 4 for Figure 1 A schematic structural diagram of a stent body of another embodiment of a silicone stent is shown;

[0021] Figure 5 for Figure 4 A schematic structural diagram of the bracket body at another angle shown;

[0022] Figure 6 for Figure 1A schematic structural diagram of a stent body of another embodiment of a silicone stent is shown;

[0023] Figure 7 for Figure 6 A schematic structural diagram of the bracket body at another angle shown;

[0024] Figure 8 is a schematic structural diagram of a silicone stent according to another embodiment;

[0025] Fig. 9 for Figure 8 A schematic structural diagram of the silicone stent from another angle shown;

[0026] Fig.10 is a schematic structural diagram of a silicone stent according to another embodiment;

[0027] Fig.11 for Fig.10 A schematic structural diagram of the silicone bracket shown in another angle. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] See also Figure 1 The silicone stent 10 of one embodiment can be used to treat airway stenosis. Specifically, the silicone stent 10 includes a stent body 100 and a film 200 .

[0032] Please also read Figure 2 and Figure 3The bracket body 100 is a tubular structure with two ends open. A plurality of flanges 101 are arranged at intervals on the outer wall of the bracket body 100. The bracket body 100 has a positioning area 102. The bracket body 100 has a plurality of positioning grooves 103 in the positioning area 102. The plurality of positioning grooves 103 are evenly arranged and fill the positioning area 102. In the illustrated embodiment, the positioning area 102 is located on the outer wall of the bracket body 100 and between the plurality of flanges 101.

[0033] Specifically, the positioning groove 103 is selected from one of a circular groove, a trumpet-shaped groove, a rectangular groove and a diamond-shaped groove. Among them, the circular groove refers to the notch of the positioning groove 103 being circular, and other shapes of grooves are defined in the same way. In addition, the positioning groove 103 can be formed by a mold or by mechanical punching. Furthermore, the bottom surface of the positioning groove 103 is an arc surface, a plane or a curved surface.

[0034] Furthermore, the depth of the positioning groove 103 is 0.1 mm to 0.2 mm. Furthermore, the positioning groove 103 is a circular groove, and the diameter of the positioning groove 103 is 0.1 mm to 0.2 mm, so that the positioning of the silicone bracket 10 is more accurate.

[0035] In one embodiment, the positioning area 102 is strip-shaped, and the extending direction of the positioning area 102 is perpendicular to the extending direction of the bracket body 100. Further, there are multiple positioning areas 102, and the multiple positioning areas 102 are spaced and arranged in parallel, and the extending directions of the multiple positioning areas 102 are perpendicular to the extending direction of the bracket body 100.

[0036] Please also read Figure 4 and Figure 5 In another embodiment, the positioning area 102 is in a strip shape, and the extending direction of the positioning area 102 is the same as the extending direction of the bracket body 100. Further, there are multiple positioning areas 102, and the multiple positioning areas 102 are spaced and arranged in parallel, and the extending directions of the multiple positioning areas 102 are the same as the extending direction of the bracket body 100.

[0037] Please also read Figure 6 and Figure 7In another embodiment, there are multiple positioning areas 102, and all of them are strip-shaped. A portion of the multiple positioning areas 102 is arranged at intervals and in parallel, and the extension direction of a portion of the multiple positioning areas 102 is the same as the extension direction of the bracket body 100. Another portion of the multiple positioning areas 102 is arranged at intervals and in parallel, and the extension direction of another portion of the multiple positioning areas 102 is perpendicular to the extension direction of the bracket body 100, so that a portion of the multiple positioning areas 102 intersects with another portion of the multiple positioning areas 102. Further, a portion of the multiple positioning areas 102 extends from one end of the bracket body 100 to the other end of the bracket body 100. Further, another portion of the multiple positioning areas 102 is arranged around the bracket body 100.

[0038] Further, a portion of the plurality of positioning areas 102 are evenly arranged, and another portion of the plurality of positioning areas 102 are evenly arranged. In other words, the spacing between two adjacent positioning areas 102 in a portion of the plurality of positioning areas 102 is the same, and the spacing between two adjacent positioning areas 102 in another portion of the plurality of positioning areas 102 is the same.

[0039] Please also read Figure 8 and Fig. 9 In another embodiment, the positioning area 102 is located on the inner wall of the bracket body 100 .

[0040] Please also read Fig.10 and Fig.11 In another embodiment, there are multiple positioning areas 102, a portion of the multiple positioning areas 102 is located on the outer wall of the bracket body 100 and between the multiple flanges 101, and another portion of the multiple positioning areas 102 is located on the inner wall of the bracket body 100, and the positioning area 102 on the outer wall of each bracket body 100 corresponds to the positioning area 102 on the inner wall of a bracket body 100.

[0041] Further, the plurality of positioning areas 102 are all in a strip shape, a portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100 is arranged in parallel and at intervals, a portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100 extends in the same direction as the bracket body 100, another portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100 is arranged in parallel and at intervals, another portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100 extends in a direction perpendicular to the extension direction of the bracket body 100, so that a portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100 intersects with another portion of the plurality of positioning areas 102 located on the outer wall of the bracket body 100, and a portion of the plurality of positioning areas 102 located on the inner wall of the bracket body 100 is arranged in parallel and at intervals. The extension direction of a part of the multiple positioning areas 102 located on the inner wall of the bracket body 100 is the same as the extension direction of the bracket body 100, and another part of the multiple positioning areas 102 located on the inner wall of the bracket body 100 is spaced and arranged in parallel, and the extension direction of another part of the multiple positioning areas 102 located on the inner wall of the bracket body 100 is perpendicular to the extension direction of the bracket body 100, so that a part of the multiple positioning areas 102 located on the inner wall of the bracket body 100 intersects with another part of the multiple positioning areas 102 located on the inner wall of the bracket body 100, and each positioning area 102 located on the outer wall of the bracket body 100 corresponds to a positioning area 102 located on the inner wall of the bracket body 100, so that the positioning area 102 has a stronger ultrasonic imaging effect and the positioning of the silicone bracket 10 is more accurate.

[0042] It should be noted that the positioning area 102 is not limited to being in a bar shape, and the positioning area 102 may also be in other shapes, such as a digital mark, to facilitate the positioning of the silicone stent 10 .

[0043] The stent body 100 is formed by a mold. Specifically, the material of the stent body 100 is a medical-grade long-term implantable silicone material.

[0044] The film 200 covers the positioning area 102 of the bracket body 100 and seals the plurality of positioning grooves 103 to form a plurality of sealed cavities in the positioning area 102 .

[0045] In one embodiment, the film 200 is in a strip shape, and the extending direction of the film 200 is the same as the extending direction of the bracket body 100. Further, when there are multiple positioning areas 102, there are also multiple films 200, and each film 200 is covered on one positioning area 102.

[0046] In another embodiment, the film 200 is in a strip shape, and the extension direction of the film 200 is perpendicular to the extension direction of the bracket body 100. Further, when there are multiple positioning areas 102, there are also multiple films 200, and each film 200 is covered on one positioning area 102.

[0047] In another embodiment, when there are multiple positioning areas 102 and all of them are in strip shape, the film 200 is arranged at intervals and in parallel with a portion of the multiple positioning areas 102, and the extension direction of a portion of the multiple positioning areas 102 is the same as the extension direction of the bracket body 100, and another portion of the multiple positioning areas 102 is arranged at intervals and in parallel, and the extension direction of another portion of the multiple positioning areas 102 is perpendicular to the extension direction of the bracket body 100, so that a portion of the multiple positioning areas 102 intersects with another portion of the multiple positioning areas 102, and each film 200 is covered on a positioning area 102.

[0048] Specifically, the thickness of the film 200 is 0.1 mm to 0.2 mm.

[0049] Specifically, the film 200 is selected from one of a medical-grade silicone film 200 , a medical-grade e-PTFE film 200 , and a medical-grade PU film 200 .

[0050] The above silicone bracket 10 has at least the following advantages:

[0051] 1) The traditional silicone stent 10 is made of medical silicone material through mold extrusion. Since the silicone stent 10 is inserted into the airway and the interior of the stent is a cylindrical hollow structure, the ultrasound is basically absorbed or scattered by the outer wall surface after passing through the silicone stent 10 tube wall, and it is difficult to produce a strong echo. Therefore, the silicone stent 10 is very fuzzy under ultrasound. In addition, the tracheal tissue (including cartilage rings) has a stronger imaging effect under ultrasound, which makes it more difficult to find the outline of the silicone stent 10 and measure and locate it under ultrasound. Therefore, in clinical practice, doctors can only use rigid bronchoscope observation under general anesthesia for examination.

[0052] The above-mentioned silicone bracket 10 includes a bracket body 100 and a film 200. The bracket body 100 is a tubular structure with openings at both ends. A plurality of flanges 101 are arranged at intervals on the outer wall of the bracket body 100. The bracket body 100 has a positioning area 102. The bracket body 100 has a plurality of positioning grooves 103 in the positioning area 102. The plurality of positioning grooves 103 are evenly arranged and fill the positioning area 102, wherein the positioning area 102 is located on the outer wall of the bracket body 100 and between the plurality of flanges 101; or, the positioning area 102 is located on the inner wall of the bracket body 100; the film 200 covers the positioning area 102 of the bracket body 100 and seals the plurality of positioning grooves 103 to form a plurality of sealed cavities in the positioning area 102. Under the action of ultrasound, the gas in the sealed cavity vibrates and reflects a strong ultrasound signal to distinguish the absorption and reflection of ultrasound by the airway tissue, and form a plurality of closed bubble structures in the positioning area 102, thereby detecting and marking the contour of the positioning area 102, and then positioning the silicone stent 10. Compared with the traditional silicone stent 10, the above silicone stent 10 has the advantages of simple positioning, no trauma, and convenient clinical application.

[0053] 2) The silicone stent 10 has a very good and clear imaging effect under the action of ultrasound, and is accurately positioned, and can accurately determine the displacement of the silicone stent 10; at the same time, it is safe for patients and has no toxic side effects.

[0054] 3) The above-mentioned silicone stent 10 selectively makes structural improvements to the tube wall of the stent body 100 so that the positioning area 102 has a sealed cavity to produce a stronger ultrasonic imaging effect; at the same time, multiple sealed cavities fill the positioning area 102, and by judging the outline of the positioning area 102, the silicone stent 10 can be clearly and accurately observed and positioned.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A silicone stent, characterized in that: include: The bracket body is a tubular structure with two ends open, a plurality of flanges are arranged at intervals on the outer wall of the bracket body, the bracket body has a positioning area, the bracket body has a plurality of positioning grooves in the positioning area, the plurality of positioning grooves are evenly arranged and fill the positioning area; wherein the positioning area is located on the inner wall of the bracket body, or on the outer wall of the bracket body and between the plurality of flanges; A film is covered on the positioning area of ​​the bracket body and seals the plurality of positioning grooves to form a plurality of sealed cavities in the positioning area; Under the action of ultrasound, the gas in the sealed cavity is used to vibrate and reflect strong ultrasound signals to distinguish the absorption and reflection of ultrasound by airway tissue. The gases in the multiple sealed cavities form multiple closed bubble structures in the positioning area, and the contour of the positioning area can be detected and marked through the multiple bubble structures; There are multiple positioning areas and films, and they are all in strip shape. Some of the multiple positioning areas are arranged in parallel and at intervals, and the extension direction of some of the multiple positioning areas is the same as the extension direction of the bracket body. Another part of the multiple positioning areas is arranged in parallel and at intervals, and the extension direction of another part of the multiple positioning areas is perpendicular to the extension direction of the bracket body, so that one part of the multiple positioning areas intersects with another part of the multiple positioning areas, and each film is covered on one positioning area. A portion of the plurality of positioning areas parallel to the extension direction of the bracket body extends from one end of the bracket body to the other end of the bracket body, and another portion of the plurality of positioning areas perpendicular to the extension direction of the bracket body is arranged around the bracket body.

2. The silicone stent according to claim 1, characterized in that: A portion of the plurality of positioning areas are arranged evenly, and another portion of the plurality of positioning areas are arranged evenly.

3. The silicone stent according to claim 1, characterized in that: The plurality of positioning areas are all in the shape of strips, a portion of the plurality of positioning areas located on the outer wall of the bracket body are arranged in parallel and at intervals, a portion of the plurality of positioning areas located on the outer wall of the bracket body extends in the same direction as the bracket body, another portion of the plurality of positioning areas located on the outer wall of the bracket body is arranged in parallel and at intervals, a portion of the plurality of positioning areas located on the outer wall of the bracket body extends in a direction perpendicular to the bracket body, so that a portion of the plurality of positioning areas located on the outer wall of the bracket body intersects with another portion of the plurality of positioning areas located on the outer wall of the bracket body, and a plurality of positioning areas located on the inner wall of the bracket body are arranged in parallel and at intervals, a portion of the plurality of positioning areas located on the outer wall of the bracket body extends in a direction perpendicular to the bracket body, A portion of the positioning areas are arranged at intervals and in parallel, an extension direction of a portion of the multiple positioning areas located on the inner wall of the bracket body is the same as the extension direction of the bracket body, another portion of the multiple positioning areas located on the inner wall of the bracket body is arranged at intervals and in parallel, an extension direction of another portion of the multiple positioning areas located on the inner wall of the bracket body is perpendicular to the extension direction of the bracket body, so that a portion of the multiple positioning areas located on the inner wall of the bracket body intersects with another portion of the multiple positioning areas located on the inner wall of the bracket body, and each of the positioning areas located on the outer wall of the bracket body corresponds to a positioning area located on the inner wall of the bracket body.

4. The silicone stent according to claim 1, characterized in that: The thickness of the film is 0.1 mm to 0.2 mm.

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