Hard waist combined anesthesia puncture bag for automatically detecting epidural space position

Abstract

The invention discloses a hard waist combined anesthesia puncture bag for automatically detecting the epidural space position. The hard waist combined anesthesia puncture bag comprises a push rod with tooth grooves, a spring, a spring baffle and an injector needle cylinder. The front portion of the push rod penetrates through the spring baffle to stretch into the injector needle cylinder, a piston is arranged at the top end of the front side of the push rod, and the spring baffle is fixed to the injector needle cylinder. The push rod is sleeved with the spring, the front end of the spring is connected to the piston, and the rear end of the spring is connected to the spring baffle. A lock catch matched with the tooth grooves is arranged on the spring baffle. The subjective judgment of an anesthetist and the visual effect are organically combined, a puncture needle is prevented from penetrating through the endorhachis, and the hard waist combined anesthesia puncture bag is safer and more effective for a patient and more practical and more reliable for the anesthetist.

Description

technical field [0001] The invention relates to a medical device, in particular to a combined epidural anesthesia puncture kit for automatically detecting the position of the epidural space. Background technique [0002] Epidural anesthesia, also known as epidural block, is to inject local anesthetic into the epidural space to block the afferent fibers of sensory nerves, motor nerves, sympathetic and parasympathetic nerves of the corresponding segment of the spinal cord, thereby blocking local The harmful stimulation of the peripheral blood vessels dilates the peripheral blood vessels, reduces the systemic circulation resistance, and reduces the preload and postload of the heart; the epidural space block of the upper thoracic segment can also improve the balance of myocardial oxygen supply and demand, and reduce the incidence of malignant arrhythmias. During epidural anesthesia, the plane of anesthesia is segmental, the anesthesia time is easy to adjust, the analgesia is per...

AI Technical Summary

Problems solved by technology

[0006] However, the retraction of the spring in the above-mentioned automatic detection syringe may also reflect the change of resistance between other tissues, rather than the disappearance of the resistance of the puncture needle from the ligamentum flavum into the epidural space, which leads to the wrong judgment of the anesthesiologist; when detecting the dura When the outer gap fails and the puncture needle needs to be withdrawn for re-puncture, the syringe spring will also retract due to the change of resistance, so it is necessary to withdraw the push rod and connect the puncture needle again, which increases the cumbersomeness of the epidural puncture process; and the spring The retraction force is relatively large, and the inertia may make the hands controlling the puncture needle continue to advance the puncture needle already in the epidural space, increasing the probability of puncturing the dura mater

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