A safety needle device for protecting a user against inadvertent needle-stick injury. This needle device includes a needle housing having a distal housing opening. An arcuate groove extends within the needle housing terminating adjacent the distal housing opening. A needle is disposed within the arcuate...http://www.google.es/patents/US6878136?utm_source=gb-gplus-sharePatente US6878136 - Huber needle with anti-rebound safety mechanism
