Improved central vein puncture needle

Abstract

The invention discloses an improved central vein puncture needle. The improved central vein puncture needle comprises a needle tube and a sleeve tube, wherein the sleeve tube is arranged on the needletube in a sleeving mode; the needle tube is movably arranged on a needle base; the sleeve tube is smoothly connected with the needle base; a fixed base is arranged at the other end of the needle base; a hose is arranged at the rear end of the fixed base and communicates with the sleeve tube; a detection device is arranged on the fixed base and comprises an optical signal transmitter, an optical signal receiver and a single-chip microcomputer; the optical signal transmitter and the optical signal receiver are both arranged in the needle tube; the optical signal receiver is connected with a signal processing circuit; the output end of the signal processing circuit is connected with the input end of an analog-digital converter; the analog-digital converter is electrically connected with a single-chip microcomputer; and a display screen is arranged on the detection device and connected with the single-chip microcomputer. The improved central vein puncture needle provided by the inventionis simple in structure and convenient to use, can identify arteries and veins by measuring the saturation of oxyhemoglobin during puncture, guarantees smooth puncture and operation, and effectively solves the problems of mistaken puncture of a puncture needle, heavy operation process and the like.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an improved central venous puncture needle. Background technique [0002] Central venous puncture combined with ultrasound guidance is one of the effective means to provide access for emergency resuscitation, critically ill patients, intraoperative monitoring, and long-term parenteral nutrition. During the surgical operation, the biggest risk of central venous puncture is that the artery is mistakenly punctured and cannot be detected in time, resulting in the artery being expanded or even the catheter being placed in the artery by mistake, which affects the smooth progress of the operation and also makes the follow-up operation process cumbersome. And now also lack the puncture needle that can identify artery and vein at present, be used for solving above-mentioned mispuncture problem, endanger the life safety of patient. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0003] In view of the above deficiencies, the present invention provides an improved central venous puncture needle, which is simple in structure and easy to use. It can distinguish between arteries and veins by measuring blood oxygen saturation during puncture, so as to ensure the smooth progress of puncture and surgery, and effectively solve the problem of puncture needle errors. Problems such as wear and heavy surgical procedures

Images