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Prosthetic system for treating nasosinusitis or allergic rhinitis

A technology for allergic rhinitis and sinusitis, applied in the field of medical devices, can solve problems such as channel blockage

Active Publication Date: 2013-03-27
PUYI (SHANGHAI) BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a prosthetic system for treating sinusitis or allergic rhinitis, so as to overcome the problems in the prior art that the expanded channel is blocked again after the balloon is withdrawn

Method used

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  • Prosthetic system for treating nasosinusitis or allergic rhinitis
  • Prosthetic system for treating nasosinusitis or allergic rhinitis
  • Prosthetic system for treating nasosinusitis or allergic rhinitis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like Figure 1A and 1B As shown, the prosthesis system for treating sinusitis or allergic rhinitis according to a preferred embodiment of the present invention is a prosthesis 10 braided from a monofilament made of a degradable polymer. The prosthesis 10 has a circumferentially extending wall 11 which is closed in the circumferential direction, ie a circumferentially closed cavity is bounded by the wall 11 , the cavity is open at both ends. The wall surface 11 is braided by monofilaments, and there are predetermined gaps between the monofilaments. Therefore, the wall surface 11 has certain elasticity and can be moderately compressed and expanded.

[0052] The monofilament consumption of the prosthesis 10 can be changed by adjusting the number of bending points 15 of the monofilament at both ends of the prosthesis during weaving, especially for the prosthesis 10 of the same diameter and length. The more the bending vertices 15 are, the more the monofilament consumption ...

Embodiment 2

[0068] like figure 2 As shown, the prosthesis system for treating sinusitis or allergic rhinitis according to another preferred embodiment of the present invention is a tubular prosthesis 20 braided from monofilaments composed of degradable polymers . The prosthesis 20 has a wall surface 21 extending in the circumferential direction, and the wall surface 21 is closed in the circumferential direction, that is, a cavity closed in the circumferential direction is defined by the wall surface 21, and the two ends (two ends) of the cavity are open, that is, the prosthesis The body 20 is formed in a cylindrical structure. The wall surface 21 is braided by monofilaments, and there are predetermined gaps between the monofilaments. Therefore, the wall surface 21 has a certain degree of elasticity, and can be moderately compressed and expanded. Similar to the preceding embodiments, the performance of the prosthesis, such as workability before implantation, implantation Transportabili...

Embodiment 3

[0073] like Figure 3A and 3B As shown, the prosthetic system for treating sinusitis or allergic rhinitis according to yet another preferred embodiment of the present invention is based on a cylindrical base body 30, and a void 32 is formed on the wall 31 of the base body 30 by laser cutting. The prosthesis system also includes a flared head end, the flared head end is formed by braiding axially outwards at both ends of the base body 30 through the gap 32 .

[0074] Figure 3A Shown is a base body 30 of equal diameter laser-cut from a hollow tube, the base body 30 of equal diameter has a wall surface 31 extending in the circumferential direction, and the wall surface 31 is closed in the circumferential direction, that is, a circumferential direction is defined by the wall surface 31 A closed cavity, the two ends of which are open, that is, the basic body 30 of equal diameter is formed into a cylindrical structure. The wall surface 31 is a flat plate structure made of degrad...

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Abstract

The invention provides a prosthetic system for treating the nasosinusitis or allergic rhinitis. The prosthetic system is provided with a wall surface which is formed by a degradable polymer and extends along the circumferential direction; the wall surface is provided with a plurality of gaps; and degradable fiber tows containing medicines are penetrated and inserted into the gaps. The prosthetic system formed by the degradable polymer can provide enough normal force vertical to the outer surface when being compressed, and after the planted part (the diseased part or the paranasal sinus opening) is released, an opened channel can be maintained with less closing possibility; and the prosthetic system is provided with a hole with the axially-hollow interior, so that after the prosthetic system is planted, the nasal cavity maintains a natural ventilating state. The prosthetic system can be naturally degraded in the nasal cavity, the degradable fiber tows containing the medicines, which are hung on the prosthetic system, can contact the diseased part which can not be directly contacted by a bracket, so that the treating effect is optimized.

Description

technical field [0001] The invention relates to the field of medical devices, and more specifically relates to a prosthesis system for treating sinusitis or allergic rhinitis. Background technique [0002] Sinusitis and allergic rhinitis are common and frequently-occurring diseases of ENT, which occur between the ages of 5 and 79. According to the survey by the health department: the current global incidence of allergic rhinitis is as high as 10% to 14%, and the incidence of sinusitis accounts for about 15% of the population. Nearly 600 million people in the world are suffering from rhinitis, and it is gradually Upward trend. [0003] 66% of asthma patients are victims of allergic rhinitis. According to experts, if allergic rhinitis is not properly treated, more than one-third of patients will eventually develop asthma. [0004] Nasal sinuses, also known as paranasal sinuses and paranasal sinuses, are multiple air-containing bony cavities around the nasal cavity, which co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/18A61M31/00
CPCA61B17/24A61F2220/0016A61F2230/0067A61F2250/0039A61F2250/0063A61F2250/0068A61F2/91A61F2/186A61F2/90A61F2210/0004A61F2230/0095A61F2250/0067
Inventor 谢建魏征
Owner PUYI (SHANGHAI) BIOTECHNOLOGY CO LTD
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