A type of nasal prosthesis

Abstract

This invention provides a nasal prosthesis, including a nasal dorsum portion. The inner surface of the nasal dorsum portion is recessed inward based on the outer surface of the nasal dorsum portion to form a depression, wherein a support portion is provided within the depression. The nasal dorsum portion of this invention has a relatively thin overall thickness, strong adaptability, and after the product is removed, the newly formed tissue can allow the nose to still maintain a certain height.

Description

Technical Field

[0001] This invention relates to a nasal prosthesis, specifically, to a nasal prosthesis that allows for the formation of new tissue after removal, enabling the nose to retain a certain height. Background Technology

[0002] Nasal implantation refers to a surgical procedure that improves the appearance of the nose by filling it with autologous, allogeneic, or tissue substitutes to augment its shape. Nasal implants are commonly used cosmetic materials, and current nasal implants are generally made of solid materials such as silicone rubber and polytetrafluoroethylene.

[0003] In the prior art, Chinese patent 01258164.X discloses a nasal implant that is implanted in the nose, which consists of a root and a tip, with the tip being hollow to form a cavity.

[0004] Chinese Patent 201520668668.3 discloses a silicone nasal implant. The nasal implant is L-shaped and includes a nasal bridge, a nasal tip, and a columella, with several transverse incisions on the nasal bridge.

[0005] Chinese Patent 01237585.3 discloses a nasal implant, which has an L-shaped solid silicone rubber implant with an expanded polytetrafluoroethylene (ePTFE) covering the outer surface and sides of the long and short arms. The silicone rubber nasal mold is closely attached to the covered ePTFE and is fixed by surgical sutures or adhesives, and the two are combined into a whole.

[0006] Chinese Patent 201520127993.9 discloses a novel nasal prosthesis, comprising a smooth L-shaped whole composed of a nasal dorsum, a nasal tip, and a nasal columella, with several first blind holes in the middle part of the nasal dorsum and several through holes in the edge part.

[0007] In the existing technology, the nasal dorsum portion of nasal implants is quite thick. After the nasal implant is removed from the user's nose, the user's nose will collapse and cannot maintain a high height, requiring the implantation of a nasal implant again to maintain the height of the nose. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a nasal prosthesis with a relatively thin overall thickness in the nasal dorsum portion, strong adaptability, and the ability for the nose to retain a certain height after removal of the prosthesis and the regeneration of new tissue.

[0009] To achieve the above objectives, the present invention provides a nasal prosthesis, including a nasal dorsum portion, wherein the inner surface of the nasal dorsum portion is recessed inward based on the outer surface of the nasal dorsum portion to form a pit, wherein a support portion is provided within the pit.

[0010] In another specific embodiment of the present invention, the support portion is configured not to extend beyond the recess, which facilitates implantation and tissue growth.

[0011] As another specific embodiment of the present invention, the support portion has a long support rib that extends along the front-back direction of the nasal bridge portion.

[0012] As another specific embodiment of the present invention, it further includes a nasal tip portion and a nasal columella portion, with the nasal bridge portion connected to the nasal columella portion via the nasal tip portion, wherein a long supporting rib extends to the nasal columella portion.

[0013] As another specific embodiment of the present invention, the long support rib is provided with a notch and / or small hole that runs through in the left and right direction to allow for tissue growth.

[0014] As another specific embodiment of the present invention, the support portion has short support ribs that extend in the left-right direction along the bridge of the nose.

[0015] As another specific embodiment of the present invention, the short support rib is provided with a notch and / or a small hole that runs through the front and rear directions.

[0016] As another specific embodiment of the present invention, the nasal dorsum portion is provided with a channel / through-hole penetrating its inner and outer sides to allow tissue growth to form a stable structure.

[0017] As another specific embodiment of the present invention, the outer side of the nasal dorsum portion is provided with anti-slip protrusions / anti-slip grooves, so that the connection between the nasal dorsum portion and the nasal tissue is tight and integrated, with good stability, and will not shift after implantation into the nose.

[0018] As another specific embodiment of the present invention, the distance between the inner and outer sides of the nasal bridge portion does not exceed 5mm. Here, the distance between the inner and outer sides of the nasal bridge portion does not include the thickness of the support portion in the pit. More specifically, the inner side of the nasal bridge portion is the wall of the pit.

[0019] The present invention has the following beneficial effects:

[0020] The nasal implant of the present invention has a depression formed on the inner side of the nasal dorsum portion, which can not only reduce the weight of the nasal implant, but also increase the deformability of the nasal implant and improve the softness of the nasal implant; in addition, tissue can grow into the depression to form a stable connection and support, and after removal, the new tissue can allow the nose to still have a certain height.

[0021] The present invention is provided with notches, holes and / or through holes, through grooves and other structures, which allow tissue to grow fully so that the nasal implant has good stability and will not shift after being implanted in the nose.

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of embodiment 1 of the nasal prosthesis of the present invention;

[0024] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0025] Figure 3 This is a schematic diagram showing the pit in Embodiment 1 of the nasal prosthesis of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of embodiment 2 of the nasal prosthesis of the present invention;

[0027] Figure 5 yes Figure 4 A structural diagram from another perspective. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0030] Example 1

[0031] This embodiment provides a nasal prosthesis, such as Figure 1 As shown in Figure 3, the nasal dorsum portion 10, the nasal tip portion 20, and the columella portion 30 are connected together via the nasal tip portion 20.

[0032] The inner surface 10a of the nasal dorsum portion 10 is recessed inward based on the outer surface 10b of the nasal dorsum portion 10 to form a pit 11, wherein a support portion 40 is provided in the pit 11.

[0033] Specifically, the nasal dorsum portion 10 is formed into an arc-shaped piece with uniform or nearly uniform thickness and achieves a uniform transition. The distance between the inner side 10a and the outer side 10b of the nasal dorsum portion 10 does not exceed 5mm, for example, 3mm. Here, the distance between the inner side 10a and the outer side 10b of the nasal dorsum portion 10 does not include the thickness of the support portion 40 in the recess 11. It mainly refers to the thickness of the thin arc-shaped piece forming the nasal dorsum portion 10, rather than the thickness of the nasal dorsum portion 10 in each projection. This embodiment has a thinner nasal dorsum portion 10, which greatly reduces the weight of the nasal implant, makes the nasal implant have better deformability, and improves the softness of the nasal implant.

[0034] In this embodiment, the support portion 40 is preferably configured not to extend beyond the recess 11, which facilitates implantation and tissue growth.

[0035] The support portion 40 has a long support rib 41 that extends along the front-back direction of the nasal bridge portion 10. The long support rib 41 preferably extends to the columella portion 30 to form a stable connection.

[0036] The long support rib 41 is also provided with a notch 42 (and / or a small hole) that runs through the left and right directions to allow the nasal tissue to grow and form a stable structure.

[0037] The support portion 40 has a short support rib 43, which extends along the left and right directions of the nasal bridge portion 10. The short support rib 43 may also have a through notch (and / or small hole) in the front and back directions to allow nasal tissue to grow and form a stable connection.

[0038] Furthermore, the outer surface 10b of the nasal dorsum portion 10 is provided with anti-slip protrusions 12 (anti-slip grooves) to facilitate better growth of nasal tissue, so that the connection between the nasal dorsum portion 10 and the nasal tissue is tight and integrated, with good stability, and will not shift after implantation into the nose.

[0039] Example 2

[0040] This embodiment provides a nasal prosthesis, such as Figure 4 As shown in Figure 5, based on Example 1, the nasal dorsum portion 10 is provided with a through hole 13 that penetrates its inner side 10a and outer side 10b to allow tissue growth to form a stable structure.

[0041] Correspondingly, a through hole 13 may also be provided on the tip of the nose 20.

[0042] Anything not covered above applies to existing technologies.

[0043] The nasal bridge portion 10 in this invention can be used independently, for example, in conjunction with a traditional nasal tip support frame, and can still achieve the technical effects of this invention.

[0044] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make modifications without departing from the scope of the invention; all equivalent modifications made in accordance with the invention should be covered by the scope of the invention.

Claims

1. A nasal prosthesis suitable for implantation and removal, comprising a nasal dorsum portion, a nasal tip portion, and a columellar portion, characterized in that, The inner surface of the nasal bridge portion is recessed inward based on the outer surface of the nasal bridge portion to form a pit, wherein there is a support portion within the pit that does not extend beyond the pit; the support portion has a long support rib and a short support rib. The long support rib extends along the front-back direction of the nasal dorsum portion and extends to the columella portion; the short support rib extends along the left-right direction of the nasal dorsum portion; the distance between the inner and outer surfaces of the nasal dorsum portion does not exceed 5mm, wherein the distance between the inner and outer surfaces of the nasal dorsum portion does not include the thickness of the support portion in the pit, and the inner surface of the nasal dorsum portion is the wall of the pit.

2. The nasal prosthesis as described in claim 1, characterized in that, The long support rib is provided with a notch and / or small hole that runs through in the left and right direction.

3. The nasal prosthesis as described in claim 1, characterized in that, The short support rib is provided with a notch and / or a small hole that runs through the front and rear directions.

4. The nasal prosthesis as described in claim 1, characterized in that, The nasal dorsum portion is provided with a channel / hole that extends through its inner and outer sides.

5. The nasal prosthesis as described in claim 1, characterized in that, The outer surface of the nasal bridge portion is provided with anti-slip protrusions / anti-slip grooves.

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