The position and the sequence of versatile exhausting box and flow governor on the transfusional device

Abstract

The position and the compositor project on the infusion apparatus for a universal exhaust case and a flux adjuster, are characterized by including an exhaust filter (1), a universal exhaust case (2), a flux adjuster (3) and a gravity type transfusion pipeline (5), wherein the exhaust filter (1), the universal exhaust case (2) and the flux adjuster (3) are in series mounted on the gravity type transfusion pipeline (5) according to the special position and sequence. The exhaust filter (1) and the universal exhaust case (2) are mounted on the upstream direction of the flux adjuster (3), and the exhaust filter (1) is provided on the upstream of the universal exhaust case (2). A plurality of tubes composed of a transfusion slot (17) and a capillary exhaust film (11) are arranged in the universal exhaust case (2) and in parallel. The V-shape exhaust hole on the exhaust filter (1) are in V-shape, and the central extruding surface points to the gas gathering discharge chamber (20) in the exhaust filter (1). The invention prevents the pumping back air permeating the exhaust film from entering the transfusion pipeline, meanwhile realizing the reliable exhaust function at each angle of each posture, finally overcomes the problem of dead angle pneumatosis.

Description

technical field [0001] The present invention relates to a disposable infusion set in a medical device, in particular to a position and arrangement scheme of a universal exhaust box and a flow regulator on the infusion set, so as to prevent the air from being sucked back into the air by the exhaust membrane during gravity infusion In the event of dangerous situations in the infusion pipeline, at the same time, it realizes the exhaust function at various angles in various positions, ensuring that there is no exhaust dead angle, and finally overcomes the problem of gas accumulation in the dead angle, and at the same time can realize liquid medicine filtration And heating degassing and near body temperature infusion and other functions. technical background [0002] The purpose of the present invention is to provide a position and sorting scheme of the universal exhaust box and the flow regulator on the infusion set. The present invention realizes the danger of preventing the ai...

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Problems solved by technology

[0003] The existing technology includes the problems in the design of "direct membrane temperature sensitive blood return self-venting infusion filter" invented by myself with the patent application number of 200510276096. For example: the filter membrane is designed in the middle and protrudes outward, so that the edge has exhaust Dead angle exists, and under certain circumstances, for example, under the infusion conditions commonly used today, after the infusion of the upstream liquid medicine is stopped or the exhaust part is raised so that the upstream liquid medicine no longer flows downstream, air reaction may occur. The dangerous situation of continuing infusion into the body into the inhaled infusion line; other existing products, such as: the precision filter of American Ball, the precision filter infusion set of Tianjin HANACO, the precision filter exhaust produced by Weihai Polymer Factory Infusion sets, etc., all use a single exhaust hole on the plane and a single exhaust film sealed inside. There is obviously a dead angle for exhaust during use, and there is a choice of direction. It has been proved by experiments that the shared ones are more serious. The problem also lies in the fact that the flow regulator is located upstream of the exhaust membrane. During use, there will be the aforementioned dangerous problem of reverse pumping gas entering the infusion line. In addition, the problem of repeated needle tip dripping in the preparation stage before use is also due to the Caused by back pumping of exhaust film

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