Pericardium mediastinum drainage device capable of continuously generating negative pressure

Abstract

The present invention discloses a pericardium mediastinum drainage device capable of continuously generating negative pressure. The pericardium mediastinum drainage device capable of continuously generating negative pressure comprises a balloon (1), a head end of the balloon (1) is provided with a one-way valve I (2), and the one-way valve I (2) is connected with a pericardium mediastinum drainagetube (3); a tail end of the balloon (1) is provided with a one-way valve II (4) and the one-way valve II (4) is connected with a catheter (5); and a flow direction of the one-way valve I (2) is the same as a drainage direction and the flow directions of the one-way valve I and the one-way valve II are the same. The pericardium mediastinum drainage device has characteristics of convenient operation and high safety.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a pericardial mediastinum drainage device capable of continuously generating negative pressure. Background technique [0002] After conventional thoracotomy, a drainage tube needs to be placed in the pericardium and mediastinum to drain postoperative blood out of the body, so as to prevent postoperative pericardial tamponade, a complication that seriously threatens the safety of patients after surgery. At present, there are mainly two types of pericardial and mediastinal drainage tubes routinely used clinically: one is a slightly harder silicone tube. The pressure on the muscle process will not cause the lumen to narrow; the other is a rubber tube with good elasticity and soft texture. The air is expelled, thereby forming a negative pressure in the pericardial cavity, and draining the accumulated blood in the pericardial cavity. However, both of the above two drainage tubes have ...

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Problems solved by technology

However, both of the above two drainage tubes have their own defects: the hard silicone tube cannot generate negative pressure through extrusion and exhaust, and can only rely on the free flow of liquid. It is easy to form thrombus to block the lumen due to blood stasis, resulting in insufficient drainage. and the soft rubber tube is easy to be squeezed by the skin and muscles due to its soft texture, resulting in narrow lumen and poor drainage, and because of the small space of the drainage tube, blood clots are easy to block the lumen, and through the extruded tube The negative pressure generated by the exhaust is small, the suction effect is not good, and it is often necessary to repeat it repeatedly, and this operation is laborious, so it is inconvenient to use; in addition, frequent extrusion of the drainage tube will reduce the elasticity and reduce the exhaust effect. decline

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