Infusion hose used for remaining needle

Abstract

Provided is an infusion hose used for a remaining needle. The infusion hose comprises a hose body, the inner wall surface of which is provided with protruding strips. The protruding strips surround an inner cavity of the hose along the inner wall of the hose. The included angles of 5 to 60 degrees are formed between the protruding strips and a tangent line for the inner wall of the hose. By adoption of the structure, a clamp is utilized for clamping the hose when the remaining needle is stopped for infusion such that the protruding strips on the inner wall surface of the hose are intersected and in contact and then closed. Therefore, flow of medicine liquid is prevented. Due to the fact that a small portion of medicine liquid remains in the hose, pressure of all closed sections in the hose does not exceed that of the remaining needle and positives pressure is formed in the hose. Therefore, blood liquid can be effectively prevented from flowing back to the remaining hose and no thrombus is formed in the remaining hose. When the protruding strips are not strutted by the insufficient positive pressure of the hose, the protruding strips can restore to be in the intersected contact and closed state. While the protruding strips are not strutted by lack of venous pressure, the hose is enclosed to the needle-remaining section in order to form an enclosed space and therefore liquid flow is completely blocked. Blood backflow is avoided and no thrombus is formed in the remaining hose.

Description

technical field [0001] The invention relates to a medical appliance, in particular to an infusion tube for indwelling needles. Background technique [0002] The commonly used medical infusion refers to the infusion method in which the metal infusion needle is left in the human body. The intravenous indwelling needle refers to the indwelling hose instead of the traditional metal needle, which can reduce the infusion process. Injury to the patient's body. [0003] The above-mentioned venous indwelling needle is easy to operate and is suitable for puncture in any part, and at the same time reduces the pain of repeated puncture for patients and the workload of nurses, and is very popular among nurses and patients in clinic. But in the process of suspending the infusion and indwelling the venous indwelling needle in the venous blood vessel, the infusion channel is blocked due to blood backflow into the indwelling hose and thrombus is formed. In recent years, there have been som...

AI Technical Summary

Problems solved by technology

However, during the process of suspending the infusion and indwelling the venous indwelling needle in the venous blood vessel, blood backflows into the indwelling hose and forms a thrombus, thereby blocking the infusion channel

In recent years, there have been some patented products of "positive pressure connector" and "anti-reflux", but they still cannot prevent the formation of thrombus. The tube must be flushed with normal saline, and sealed with low-concentration heparin sodium injection after flushing. According to the requirements of nursing regulations, the tube needs to be sealed every 6 to 8 hours, so the workload is heavy

In addition, when the traditional indwelling needle is used, a large number of thrombus will be rushed into the blood vessels of the human body during the nursing operation of the tube, which will cause very serious potential hidden dangers. Redness, swelling and pain occurred at the injection site, which caused harm to the patient; in addition, the above-mentioned nursing procedures required expenses for flushing fluid, locking fluid, and labor costs for nursing, which greatly exceeded the indwelling needle itself. price, so the medical cost is higher

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