Bronchus flap and manufacturing method thereof

Abstract

The invention discloses a bronchus flap and a manufacturing method of the bronchus flap. The bronchus flap comprises a retractable frame and a continuous isolating membrane covering the frame; the frame comprises a proximal end, a far end and at least three longitudinal beams connected between the proximal end and the far end; each longitudinal beam comprises a far end bending part connected with the far end and a proximal end bending part connected with the proximal end; one end of the isolating membrane covers the far end of the frame; and the other end of the isolating membrane is provided with an edge that is positioned between the far end bending part and the proximal end bending part of the longitudinal beam. Through the adoption of the closed type frame structure, not only are the supporting capacity and the stability of the frame improved, but also the quoin points of the frame in contact with the inner wall of a bronchus are decreased, so that the damage ratio of the inner wall of the bronchus is reduced, and the occurrence probability of bronchitis is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a bronchial valve and a manufacturing method thereof. Background technique [0002] Chronic obstructive pulmonary disease such as emphysema is a common disease, especially in the elderly. Traditionally, the treatment of emphysema generally includes medical treatment and surgical treatment. Medical treatment includes oxygen inhalation, prevention of lung infection, bronchial spasm relief, etc., but the curative effect is extremely limited; surgical treatment is mainly based on lung volume reduction surgery, and there are many limitations, such as: strict surgical indications, there are More complications, anesthesia and anesthesia-related complications, unpredictable preoperative curative effect, unable to make up for unsatisfactory curative effect caused by too much or too little resection after surgery, high surgical costs and greater mental and physical In addition, some patien...

AI Technical Summary

Problems solved by technology

When the umbrella-shaped bronchial valve is placed in the bronchi, once the struts 204 and the anchor rods 205 are deformed non-axisymmetrically, the umbrella-shaped structure is easy to tilt, resulting in a large gap that may be formed between the insulating membrane 207 and the bronchial wall, so that Loss of the function of the umbrella-shaped bronchial valve to prevent the entry of external air into the tissue of the emphysema area

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