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Nasal sinus stent and conveying system

A delivery system and sinus technology, applied in the field of expandable stents, can solve problems such as perversion of smell, hyposmia, and olfactory disorder, and achieve the effect of maintaining permeability

Active Publication Date: 2016-11-23
PUYI (SHANGHAI) BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such excision and reconstruction operations disrupt the natural filtration and humidification provided by these structures, leading to dryness, bleeding, crusting, increased risk of infection, and altered sense of smell, including hyposmia, anosmia, paraosmia, and loss of smell

Method used

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  • Nasal sinus stent and conveying system
  • Nasal sinus stent and conveying system
  • Nasal sinus stent and conveying system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0032] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0033] Figure 1-Figure 2 Shown is a sinus stent 1 according to a first embodiment of the present invention, which when deployed has the following features: figure 1 The lantern-like shape shown, when shrunk, has a figure 2 Cylindrical shape shown. In the center there is a support rod 11 extending along the longitudinal axis L and a sleeve 12 sleeved on the outer wall of the support rod 11, and the two are fixedly connected at one end.

[0034] The structure of support rod 11 is as image 3 As shown, the support rod 11 is a straight tubular structure, one end is a top end 111 fixedly connected to the casing 12 , and the other end is a free end 112 . On the pipe wall adjacent to the free end 112 , there is provided a radially outwardly protruding clamping structure 113 . Such as Figure 4 As shown, the clamping structure 113 in this embodimen...

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Abstract

The invention relates to a nasal sinus stent. The nasal sinus stent extends along the longitudinal shaft and is loaded with drugs, and comprises a supporting rod with a straight tube structure and a sleeve, wherein the supporting rod is provided with a top end and a free end; a clamping structure which is outward extruded in the radial direction is arranged on the tube wall, close to the free end, of the supporting rod; the sleeve is arranged on the outer wall of the supporting rod in a sleeving manner, and is provided with an annular connecting end and a movable end; a plurality of connecting spokes are arranged between the connecting end and the movable end and are arranged at intervals one another; the top end is fixedly connected with the connecting end; and the movable end can be used for clamping the clamping structure. The invention further provides a conveying system. The nasal sinus stent is used for conveying under a contracted state, is used for supporting the lesion position under an unfolded state, and is used for treatment by utilizing the drugs.

Description

technical field [0001] The invention relates to an expandable stent, more particularly to a sinus stent and delivery system. Background technique [0002] The sinuses are multiple air-filled bony cavities around the nasal cavity, which communicate with the nasal cavity through small tubes. The epidermal mucosal cells in the nasal cavity and paranasal sinuses of normal people continuously secrete clear liquid, and then the cilia on the mucosal cells pulsate regularly, and these secretions flow from the nasal sinuses, through the nasal cavity, to the nasopharynx and throat Then swallowed into the esophagus and stomach. The average adult secretes about 1 liter of mucus every day. These mucus are used to maintain the humidity inside the nasal cavity and sinuses, and at the same time absorb dust and foreign objects in the air to protect the health of the respiratory tract. Once due to the invasion of viruses, bacteria, or the stimulation of foreign objects, the secretion of cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/91A61F2/966A61M31/00
Inventor 黄彬谢建李建军魏征
Owner PUYI (SHANGHAI) BIOTECHNOLOGY CO LTD
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