Lung collateral ventilation detection device

A detection device and bypass technology, applied in the directions of diagnostic recording/measurement, medical science, sensors, etc., can solve the problems of resolution limitation, limited application, unclear display of interlobar fissure in patients, etc.

Inactive Publication Date: 2015-02-25
田庆
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  • Abstract
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Problems solved by technology

This method requires special CT equipment, which is expensive and difficult to promote
[0005] ③ High-resolution CT can fully display the horizontal fissures and interlobar fissures, but limited by the resolution, the interlobar fissures cannot be clearly displayed in some patients
[0006] Due to the disadvantages of the above-mentioned techniques for detecting pulmonary bypass ventilation, their application is limited. Therefore, an economical, simple, and accurate method is urgently needed to detect the existence of pulmonary bypass ventilation in clinical practice. One-way valve implantation to treat more COPD patients

Method used

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Embodiment Construction

[0020] Such as figure 1 As shown, the structure of the lung bypass ventilation detection device of the present invention includes three parts: a gas sampling component, a helium concentration sensor, and a signal analysis device, and a helium source 5 and an oxygen source 6 are also configured. among them,

[0021] The main body of the gas sampling component is a hollow ventilation tube 4, which is made of suitable materials so that its length, caliber and flexibility are compatible with the biopsy channel of the bronchoscope. The rear end of the ventilation duct 4 is connected to the gas extraction pump 3. The gas pump 3 generates negative pressure and collects gas at the front end of the ventilation tube 4. The gas sampling pump 3 used has a sampling flow rate of 10-100 ml / min.

[0022] A spherical balloon 7 is attached to the outer wall of the front end of the ventilation catheter 4, and the spherical balloon 7 is connected to the balloon catheter 4. The balloon catheter 4 i...

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Abstract

The invention discloses a lung collateral ventilation detection device. The lung collateral ventilation detection device structurally comprises a gas sampling component, a helium concentration sensor and a signal analysis device. The body of the gas sampling component is a ventilation catheter, the rear end of the ventilation catheter is connected with a gas sampling pump and the helium concentration sensor, and a spherical gas bag is attached to the front end of the ventilation catheter and connected with a rear injection end port through a gas bag catheter. The helium concentration sensor is connected with the signal analysis device through a serial port, data measured by the helium concentration sensor are transmitted to the signal analysis device in real time, and the signal analysis device is provided with data analysis software and displays, stores and records the collected data.

Description

Technical field [0001] The invention relates to the field of medical testing equipment. Background technique [0002] Chronic obstructive pulmonary disease (COPD) is a type of disease characterized by airflow limitation caused by chronic bronchitis and emphysema. A common pathophysiological phenomenon in such patients is bypass ventilation. The so-called bypass ventilation refers to the communication between the lung lobes, which is the phenomenon of ventilation in the pathways that exist outside the normal airways of the alveoli. There are no specific treatments for COPD in the medical community today. One-way valve implantation under bronchoscope is an effective treatment method. However, this surgical method is only suitable for patients who do not have bypass ventilation on the target lobe, so it must be tested before surgery. Confirm that the patient has no bypass ventilation. Existing techniques for detecting pulmonary bypass ventilation include: [0003] ① Airflow obstru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/08
CPCA61B5/082
Inventor 田庆曹璐
Owner 田庆
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