| 摘要 |
An intravenous catheter introducing device includes a needle cannula with a rear connecting end that is forced by a needle retracting member to displace relative to a barrel between a position of use to permit a needle tip to pierce a patient's vein, and a disposal position to permit retraction of the needle tip into the barrel. A tubular outlet member is disposed downstream of the rear connecting end, and is mounted radially and outwardly of the barrel. A flashback member can be connected to and in fluid communication with the tubular outlet member so as to permit the user to check whether a tubular catheter has been successfully introduced into a target vein of the patient. In addition, the flashback member can provide a blood drawing function to facilitate flow of blood into the flashback member.
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