Gas collecting device for expiration test

• Main Authors: XU PINGZHEN, SHI YUNFU, FEI BAOYING
• Format: Patent
• Language: Chinese; English
• Published: 31.12.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The utility model discloses a gas collecting device for an expiration test. The gas collecting device comprises a collecting bag (1), an expiration nozzle (2) is arranged on the collecting bag (1), a cover (3) is arranged on the expiration nozzle (2), a plurality of one-way pieces (4) are arranged in the expiration nozzle (2), the one-way pieces (4) are evenly arranged along the center of the expiration nozzle (2), side edges (5) are arranged on the one-way pieces (4), the side edges (5) of the adjacent one-way pieces (4) are tightly attached, and protrusions (6) are arranged on the side edges (5). According to the respirator, gas exhaled by a patient can be effectively collected, and suck-back or outward leakage of the collected gas is prevented. 本实用新型公开了一种用于呼气试验的气体收集装置，包括收集袋(1)，收集袋(1)上设有呼嘴(2)，呼嘴(2)上设有盖子(3)，所述的呼嘴(2)内设有多块单向片(4)，多块单向片(4)沿呼嘴(2)中心均匀设置，单向片(4)上具有侧边(5)，相邻单向片(4)的侧边(5)紧密相贴，侧边(5)上设有凸起(6)。本实用新型能够对患者所呼出的气体进行有效的收集，防止倒吸或已经收集完成的气体向外泄漏。