A Detection System for Accurately Measuring the Tension of Narrow Airways

Abstract

The invention relates to a detecting system for accurately measuring tracheobronchial stenosis tension. The detecting system comprises a detecting device and a computer data collecting analyzing system connected with the detecting device; the detecting device comprises a balloon, a pushing rod, an injector and a pressure transducer; a tubular hollow structure is formed in the balloon; a pressure detecting film is arranged on an outer wall of the balloon; the pressure detecting film comprises a plurality of uniformly distributed pressure sensors; one side of the pushing rod is connected with the balloon; the other side of the pushing rod is respectively connected with the injector and the pressure transducer; a guide wire chamber is formed in the pushing rod; a guide wire is arranged in theguide wire chamber; the guide wire passes through a hollow structure in the balloon; a tip head is formed by a part of the guide wire protruded from the balloon; the computer data collecting analyzing system is used for calculating the tension received by the pressure detecting film.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a detection system for accurately measuring the tension of a narrow airway. Background technique [0002] The airway, including the trachea and bronchi at all levels, can be benign or malignant narrowing of the airway due to tumors, inflammation, trauma, tuberculosis and other diseases. In severe cases, the life of the patient will be endangered. Inserting a stent into the narrowed airway through a balloon catheter is the solution Airway stenosis is a very effective method, but different causes and different degrees of stenosis lead to different tensions at the stenosis. For example, scar stenosis such as trauma or tuberculosis has high tension, while stenosis caused by malignant tumors has relatively low tension. The supporting force of the inserted stent must be suitable for the tension of the stenosis. If the supporting force of the stent is too small, the narrow airway may not ...

AI Technical Summary

Problems solved by technology

The supporting force of the inserted stent must be suitable for the tension of the stenosis. If the supporting force of the stent is too small, the narrow airway may not be able to open, and the supporting effect may not be achieved. Moreover, the stent is easy to slip and block the distal airway, which may lead to It may cause greater risks; if the support force of the stent is too large, it may also cause tearing of the airway mucosa and cartilage, resulting in tracheal fistula, which will also cause more serious scar stenosis after future repair, and also stimulate the hyperplasia of granulation tissue

[0003] None of the existing technologies and methods can accurately detect the tension of the narrow airway, and it is impossible to select a suitable stent more accurately. It is urgent to develop a device that can accurately measure the tension of each point of airway stenosis, so as to provide a basis for the future according to the various points of the narrow airway. The difference in tension, accurate and reasonable design of suitable stents, laying the foundation, which has very important clinical significance and economic benefits

Images