Y-type blood-return cavity device and artery puncture needle comprising same

Abstract

The invention relates to medical injection equipment, in particular relates to a Y-type blood-return cavity device and an artery puncture needle comprising the same. The type-Y blood-return cavity device comprises a puncture needle seat connector, a guide wire slide rail connector and a blood return cavity branch, wherein the puncture needle seat connector is fixedly communicated with the guide wire slide rail connector, and the blood return cavity branch is communicated to the side edge of the guide wire slide rail connector. The artery puncture needle comprises an indwelling sleeve, a puncture steel needle and a type-Y blood return cavity device. The artery puncture needle can replace an exhaust connector of the type-Y blood return cavity device, so that the puncture cost is reduced, and the puncture success rate is increased.

Description

technical field [0001] The invention relates to a medical injection device, in particular to a Y-shaped blood return chamber device and an arterial puncture needle containing the device. Background technique [0002] The arterial puncture needle is used to puncture and collect arterial blood samples, and monitor the dynamic blood gas, electrolyte and arterial blood pressure of critically ill patients. The pain of the patient is beneficial to the dynamic observation of rescue, treatment and condition. Arterial puncture needles have many advantages, such as reducing blood vessel damage caused by repeated punctures, reducing patient pain, opening up arterial "green channels" for the rescue of critically ill patients, and reducing the workload of medical staff. [0003] Western countries pay great attention to puncture safety issues, and have long managed indwelling needles as the basic work of medical treatment. Basic components such as needles, valves, tubes, switches, joints...

AI Technical Summary

Problems solved by technology

In my country, there is currently no manufacturer specializing in the production of arterial puncture needles. They mainly confuse venous indwelling needles with arterial puncture needles and name them arteriovenous indwelling needles. Due to the relatively backward production technology, this kind of needles can only meet the purpose of venous indwelling. , and as an arterial puncture, the probability of failure is extremely high, and the product is difficult to meet clinical requirements

With the existing arteriovenous indwelling needle (arterial puncture needle), when the puncture fails and needs to be punctured again, the entire indwelling needle needs to be replaced due to the contamination of the blood return cavity, which requires high cost; the blood return cavity of the existing indwelling needle is arranged at the same level as the needle body When the doctor operates, the blood return cavity is located under the palm of the hand, which is not conducive to the operator to observe the blood return situation, so that the needle insertion direction cannot be adjusted in time, resulting in the failure of the entire arterial cavity puncture, or the blood return cavity cannot be seen clearly during the second puncture. Failure; without a hemostatic valve, resulting in a large amount of bleeding, and long-term contact between blood and air, increasing the possibility of infection, and prone to false blood return (the puncture needle is in the arterial vessel, but the indwelling catheter is outside the blood vessel). The indwelling catheter behind the needle cannot be fed into the blood vessel, resulting in puncture failure

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