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Abstract

An anasesthesia set which includes a straight epidural cannula with a ground opening, a spinal cannula which is longer and thinner than the epidural cannula and which is insertable therein such that its front end projects from the epidural cannula, and a catheter adapted to be advanced through the epidural cannula. The tip of the epidural cannula is bent and the opening is directed sideward. A hole is formed in the outer wall of the bend of the tip. The hole is centered on the longitudinal central axis of the epidural cannula and is smaller than the outer diameter of an epidural catheter. The tip of the spinal cannula enters the spinal channel straightly, whereas the epidural catheter is deflected from the spinal channel and introduced into the epidural space. Without requiring any particular knowledge, spinal anaesthesia and epidural anaesthesia are performed in combination so that full use is made of the fast effect of the spinal anaesthesia and of the expansion of the area of the anaesthesia provided by the epidural analgesia. The duration of the analgesia is optionally extensible by subsequent injections.

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First Claim