Upper arm fixing device for peripherally inserted central catheter

Abstract

An upper arm fixation device for central venous catheterization through peripheral venous puncture. The annular cuff is cylindrical with a height of 10±2cm and a diameter of 8±1cm. There is an adjustable inflatable cushion inside the annular cuff. The adjustable inflatable cushion There is a pressure sensor on the surface of the inner ring, and in the control cavity installed outside the annular cuff, the pressure sensor, pressure adjustment device, wireless transmission module, and input module are respectively connected to the microprocessor, and the pressure adjustment device is connected to the adjustable inflatable cushion through pipelines . The invention has a simple design and can be directly placed on the upper arm without external pipelines; it does not require medical staff to keep watch during the puncture process, which improves work efficiency. The applied pressure is uniform, and the contact area with the arm is larger. Combined with the pressure sensor, the pressure on the arm can be accurately sensed. When the pressure is adjusted to an appropriate pressure, the blood vessel will not slide and shift after bursting, which facilitates the puncture. .

Description

technical field [0001] The invention relates to a fixing device, in particular to an upper arm fixing device for central venous catheterization through peripheral venous puncture. Background technique [0002] Central venous catheterization through peripheral venous puncture is to use a catheter to puncture from the vein of the peripheral arm. The catheter goes directly to the large vein close to the heart, which can avoid direct contact between chemotherapy drugs and the arm vein, and the blood flow of the large vein is very fast, which can Rapidly dilute chemotherapy drugs to prevent drugs from stimulating blood vessels, so it can effectively protect the veins of the upper limbs, reduce the occurrence of phlebitis, relieve pain of patients, and improve the quality of life of patients. The current puncture method is to first measure the length of the patient from the puncture site to the superior vena cava with a tape measure. After selecting the puncture site at the elbow,...

AI Technical Summary

Problems solved by technology

In practical application, it is found that some elderly patients are thin and have very thin blood vessels. After the ordinary venous tourniquet is tied on the upper arm of the patient, it is difficult to find the position of the needle, and multiple punctures are required, which increases the pain of the patient; On the one hand, the puncture process requires relatively high technical requirements for the operation. The patient's blood vessels are easy to slip during the puncture process using a common tourniquet, and it takes repeated punctures to succeed, which brings great pain to the patient.

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