Cardiology department puncture device

Abstract

The invention discloses a cardiology department puncture device, belonging to the field of medical instruments. The cardiology department puncture device comprises an outer tube, an inner tube and a core tube which are arranged and sleeved in sequence from the outside to inside, wherein the corresponding positions of the inner tube and the core tube are respectively provided with a first extraction hole and a second extraction hole which are adaptive mutually; the core tube is internally provided with an extraction cavity which is located on one side of a rotating rod and communicated with thesecond extraction hole; the front end of the inner tube is in bulk connection with a buffer airbag, and the buffer airbag comprises a fixed airbag body located directly in front of the inner tube andan annular airbag body connected to the periphery of the fixed airbag body; the center of the rear side surface of the fixed airbag body is rotatably connected with a rotating rod through a connecting block, and the annular airbag body is provided with pulling ropes connected to the rotating rod at equal intervals along the circumference of the annular airbag body; the outer tube comprises a maintube body and an auxiliary tube body which are slidably connected, a reverse wheel is arranged on the main tube body, and a linkage rope winding on the reverse wheel is connected between the auxiliary tube body and the inner tube. The cardiology department puncture device provided by the invention has better protective effect on myocardium and corresponding blood vessels, and can buffer the vibration caused by heart beating and avoid affecting effusion extraction.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a puncture device for cardiology. Background technique [0002] Clinically, puncture is often used in the treatment of patients with pericardial fluid. At present, traditional needles are generally used for puncture. Because the front end of the needle is relatively sharp, after the needle penetrates into the pericardium, the heart is beating all the time, and the needle tip can easily stab the myocardium and even cause cardiac arrest, which poses a great safety hazard. After the needle position is determined, the position and speed of extracting the effusion cannot be adjusted, which affects its practical application. [0003] In the patent with authorized notification number CN 206333950U, a puncture device for cardiology is disclosed, which includes an outer cylinder, an inner cylinder, and a core cylinder; an annular friction belt is formed at the rear end of the inner wall of...

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: one, the cross-sectional area of ​​the cover is always smaller than the cross-sectional area of ​​the outer cylinder, and there is still the possibility of stabbing the myocardium and corresponding blood vessels; two, the cover does not have elasticity, and when it contacts the pericardium, it will follow the movement of the heart Bounces, vibrates, may interfere with extraction of effusion

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