Medical chest cavity puncture and drainage tool

Abstract

The invention discloses a medical chest cavity puncture and drainage tool comprising a puncture needle (3), an outer protection cannula (1) and an inner sliding cannula (2). The inner sliding cannula(2) is sleeved in the outer protection cannula (1) and slidably connected with the outer protection cannula (1), the puncture needle (3) is sleeved in the inner sliding cannula (2) and slidably connected with the inner sliding cannula (2), and the front end of the inner sliding cannula (2) is a cannula tip (5). The inner sliding cannula (2) is provided with a plurality of liquid permeation throughholes (6), the liquid permeation through holes (6) are communicated with the inside of the inner sliding cannula (2) and the inside of the outer protection cannula (1), the puncture needle (3) is provided with a strip-shaped through groove (7), and after the puncture needle (3) slides in the front-end direction of the inner sliding cannula (2) inside the inner sliding cannula (2), the strip-shaped through groove (7) is communicated with the liquid permeation through holes (6). In the technical scheme, blood is blocked by a blood flow blocking stent to obtain a clear surgical field, the structure is simple, and the blocking effect is good.

Description

technical field [0001] The invention relates to a medical thoracentesis and drainage tool, which belongs to the field of medical devices. Background technique [0002] Pericardial effusion and pleural effusion are common medical diseases. Pleural effusion is the excessive leakage or exudation of interstitial fluid on the surface of the pleura and accumulation in the pleural cavity, commonly known as pleural effusion. Pleural effusion is not a disease but a consequence of systemic or pleural disease. Its symptoms include pleuritic chest pain and shortness of breath; therefore, the extraction of pleural effusion can reduce the pressure of liquid on the lung tissue, re-expand the lung tissue, and relieve the patient's dyspnea and other symptoms. In the case of field first aid, if the patient's body is inconvenient to move, it is necessary to extract pleural effusion in the field in a complex environment. After the thoracentesis needle is taken out, the puncture needle will be...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem existing in the prior art that "after the thoracocentesis needle is taken out, the puncture needle will be exposed to the air in the field for a long time, causing the pollution of the puncture needle, and because the field environment is relatively complicated, it is easy to be contaminated during the puncture process." Pollutants enter the tissue of the patient's body from the puncture needle hole, which is likely to cause puncture infection". The invention provides a medical thoracentesis drainage tool

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