Shielded hypodermic needle

• US 3,134,380 A
• Filed: 02/08/1962
• Issued: 05/26/1964
• Est. Priority Date: 02/08/1962
• Status: Expired due to Term

• Current Assignee: Thomas A. Armao
• Original Assignee: Thomas A. Armao
• Inventors: Armao, Thomas A.
• Application Number:
  US04/171,899
• Time in Patent Office: 838 Days
• US Class Current: 604/198
• CPC Class Codes: A61M 2005/3256 having folding ring sections
• CPC Class Codes: A61M 2005/3267 Biased sleeves where the needle is uncovered by insertion of the needle into a patient's body
• CPC Class Codes: A61M 5/001 Apparatus specially adapted for cleaning or sterilising syringes or needles
• CPC Class Codes: A61M 5/326 Fully automatic sleeve extension, i.e. in which triggering of the sleeve does not require a deliberate action by the user
• CPC Class Codes: A61M 5/42 having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced

Claims

1. A DISPOSABLE HYPODERMIC NEEDLE ASSEMBLY COMPRISING A HUB ADAPTED FOR ATTACHMENT TO A SYRINGE, A HOLLOW NEEDLE EXTENDING THROUGH SAID HUB AND A COLLAPSIBLE INTEGRAL SHIELD AFFIXED TO SAID HUB, SAID SHIELD BEING TUBULAR AND ENVELOPING SAID NEEDLE ON ONE SIDE OF SAID HUB, SAID SHIELD EXTENDING IN THE UNCOLLAPSED STATE BEYOND THE END OF SAID NEEDLE, HAVING A SHIELD END WALL PENETRABLE BY SAID NEEDLE AND BEING CAPABLE OF COLLAPSING UPON ITSELF TOWARD SAID HUB WHEN SAID NEEDLE IS INSERTED INTO A PATIENT, SAID SHIELD BEING MADE OF A MATERIAL WHICH RESISTS