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Inflatable medicine sustained-release stent

An inflatable, drug technology, applied in the field of medical devices, can solve the problems of not being able to use alone, insufficient mechanical properties of polymer membrane stents, etc., and achieve the effect of strong adaptability

Pending Publication Date: 2019-09-27
乐畅医疗器械(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the obvious lack of mechanical properties of the polymer membrane stent, it cannot be directly placed in the cavity of nasal polyposis to open the nasal cavity blocked by nasal polyps. The stent can only be used in conjunction with endoscopic sinus surgery, and cannot be used alone. Operation

Method used

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  • Inflatable medicine sustained-release stent
  • Inflatable medicine sustained-release stent
  • Inflatable medicine sustained-release stent

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] An inflatable drug sustained-release stent, such as figure 1 As shown, it includes a support pipe frame 1 , a one-way valve 2 and an intake pipe 3 communicating with the intake end of the one-way valve 2 . The support tube rack 1 includes a drug release tube group 11 communicated with each other and a drug release member 12 arranged on the drug release tube group 11 (see figure 2 ).

[0032] The drug release tube set 11 includes a plurality of symmetrically arranged first drug release tubes 111 and a plurality of symmetrically arranged second drug release tubes 112 . In this embodiment, the second drug release tube 112 is an annular tube, and there are two, the two second drug release tubes 112 are intersected and arranged in a sinusoidal shape. It has stronger adaptability to uneven lesions. One end of the first drug release tube 111 comm...

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Abstract

The invention relates to the field of medical devices and discloses an inflatable medicine sustained-release stent. The inflatable medicine sustained-release stent comprises a supporting pipe frame and also comprises a one-way air valve and an air inlet pipe which is communicated with an air inlet end of the one-way air valve; the supporting pipe frame comprises a medicine release pipe group and a medicine release piece which are communicated with each other; sustained-release medicines are pre-stored in the medicine release piece; the medicine release pipe group is closed and is communicated with an air outlet end of the one-way air valve; and the medicine release piece is arranged on the medicine release pipe group. The medicine sustained-release stent has relatively strong supporting force, and can be directly implanted into a nasal cavity with nasal polyp in outpatient service without performing nasal endoscopic surgery, so that a the blocked nasal cavity channel can be opened.

Description

technical field [0001] The invention relates to the field of medical equipment, more specifically, it relates to an inflatable drug slow-release bracket. Background technique [0002] The sinuses, also known as paranasal sinuses and paranasal sinuses, are multiple air-filled bony cavities around the nasal cavity. The mucous membranes of the sinuses are connected with the nasal mucous membranes, so the inflammation of the nasal mucous membranes often spreads to the sinus mucous membranes, causing sinusitis. At present, it is believed that the pathogenesis of sinusitis is mainly due to the infection of the sinuses due to the obstruction of the sinus opening caused by various reasons. Among them, nasal polyps are an important reason for the obstruction of the opening of the sinuses, and the inflammatory stimulation of the sinuses in turn promotes the growth of nasal polyps. Form a vicious circle. For chronic sinusitis caused by sinus meat, the current treatment method is main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/82A61M31/00
CPCA61F2/82A61M31/002A61M2210/0618A61F2250/0068A61M2210/005
Inventor 余洪猛许伦王丽杨海
Owner 乐畅医疗器械(上海)有限公司