PERCUTANEOUS NEEDLE WITH ENTRY FOR INSERTION OF A WIRE

摘要

A needle (7) is attached to a connector portion (2) having a common passage (10) with an arm (4) having a lumen (9), and a one-way valve (5) to prevent flow of fluid from the needle (7) through the lumen (9) of the arm (4). The one-way valve (5) acts as a conduit for insertion of a wire (18) into the channel of the needle (7) which has been inserted into a blood vessel. The connector portion (2) having the arm (4) may be provided as a separable adapter for use with a conventional needle hub or may be a part of the needle assembly.