A needle holder assembly for taking a blood sample with an evacuated tube includes a needle affixed to a hub and a tubular needle holder removably affixed to the hub. A thermoplastic elastomeric sleeve fits snugly over one end of the needle and is punctured by the needle during sampling and is...http://www.google.es/patents/US5687740?utm_source=gb-gplus-sharePatente US5687740 - Needle holder assembly including sleeve of thermoplastic elastomer
Needle holder assembly including sleeve of thermoplastic elastomer
