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A device for oxygen-driven atomization and phase formation of exogenous positive end-expiratory pressure

A positive end-expiratory pressure and exogenous technology, applied in the field of nebulizers, can solve the problems of reduced ventilation, aggravated respiratory acidosis, and unfavorable clearance of airway secretions by patients

Active Publication Date: 2015-12-09
THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV (GUANGZHOU RESPIRATORY CENT) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when AECOPD patients with hypercapnia use oxygen-driven aerosol inhalation, due to the elimination of hypoxemia, the respiratory rate and depth decrease, and the alveolar minute ventilation decreases, resulting in an increase in blood carbon dioxide levels and aggravating respiratory acidosis , reduce cough ability, is not conducive to the patient's clearance of airway secretions

Method used

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  • A device for oxygen-driven atomization and phase formation of exogenous positive end-expiratory pressure
  • A device for oxygen-driven atomization and phase formation of exogenous positive end-expiratory pressure

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Embodiment Construction

[0022] Please refer to figure 1 with figure 2 As shown, it shows the specific structure of the preferred embodiment of the present invention, including an oxygen-driven atomizing mechanism 10, a T-shaped joint 20, and a mouthpiece 30.

[0023] Wherein, the oxygen-driven atomization mechanism 10 includes an atomization cup, a medicine storage tank, a siphon, an oxygen gas inlet, an atomization nozzle and other structures. When high-pressure oxygen flows out of the atomization nozzle through the oxygen gas inlet, the airflow is generated around it. Negative pressure, the negative pressure sucks out the liquid in the medicine storage tank through the siphon, and sprays it out with high-pressure oxygen, thereby generating atomized gas. This is an existing mature technology. Here, the specific structure and work of the oxygen-driven atomizing mechanism 10 The principle is not described in detail.

[0024] The T-shaped joint 20 includes a first opening 21, a second opening 22, and a th...

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Abstract

The invention discloses a device for bi-phase forming of exogenous positive end-expiratory pressure through oxygen driven inhalation. The device comprises an oxygen driven inhalation mechanism, a T-shaped joint and a mouthpiece, wherein an inspiration one-way valve is arranged in a first opening; and the mouthpiece is connected with a second opening of the T-shaped joint. Therefore, atomizing gas with inspiration oxygen helps dilute secretion of the air passage and improve the blood oxygen saturation, blood oxygen improvement facilitates improving expiratory dyspnea of patients and active cough to remove secretion of the air passage, and meanwhile, the exogenous positive end-expiratory pressure resists endogenous positive end-expiratory pressure of a COPD (Chronic Obstructive Pulmonary Disease) patient so as to be favorable for reducing the concentration of carbon dioxide in blood. Accordingly, not only is secretion of the air passage removed, but also carbon dioxide retention caused by oxygen inhalation is prevented.

Description

Technical field [0001] The invention relates to the field of nebulizer technology, in particular to a device that drives nebulization by oxygen and forms an exogenous positive end-expiratory pressure. Background technique [0002] Chronic obstructive pulmonary disease (Chronic Obstructive Pulmonary Disease, COPD) is a disease with the characteristics of airflow limitation, which mainly manifests as chronic cough, sputum expectoration, and acute exacerbation (acuteexacerbationofchronicobstructivepulmonarydisease, AECOPD). Difficulty breathing, even hypoventilation, and finally lead to respiratory failure of hypoxemia and hypercapnia. Sputum can aggravate hypoventilation, so promoting sputum is one of the main treatment measures for acute exacerbation of chronic obstructive pulmonary disease. Nebulized inhalation is currently the main method to promote sputum, and the most common method of nebulization is oxygen-driven nebulization. However, when AECOPD patients with hypercapnia ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M16/00A61M11/00
Inventor 郑则广陈荣昌钟南山徐结兵陶基祥符国富
Owner THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV (GUANGZHOU RESPIRATORY CENT)
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