| 摘要 |
Device in an I.V. Catheter including a catheter housing (7), a catheter tube (1), an insertion needle (9) and a needle guard (10) inside the catheter housing for enclosing the tip (2) of the insertion needle to prevent accidental injuries at removal of the insertion needle from the catheter housing after the catheter tube having been inserted into a blood vessel. The insertion needle can be passed through a central passage (12) in the needle guard into the catheter tube to a position wherein the tip of the insertion needle is located outside the catheter tube (1). In order that the tip (2) of the insertion needle shall be enclosed in the needle guard (10), after a blood vessel having been penetrated the needle guard is attached in the catheter housing by means of a snap means (8) to the Luer-lock fitting/Luer cone (5) of the catheter housing, and by a cord (6) of the needle guard to the rear portion (3) of the insertion needle (9) passed into the catheter housing the needle guard enclosing the tip (2) of the insertion needle when the insertion needle is withdrawn from the catheter housing (7) and the cord (6) is extended, the snap means (8) being released from the catheter housing and the needle guard (10) enclosing the tip (2) of the insertion needle. |
