Needle hub and sheath structure

• US 3,073,307 A
• Filed: 10/28/1959
• Issued: 01/15/1963
• Est. Priority Date: 10/28/1959
• Status: Expired due to Term

• Current Assignee: Peter A. Stevens
• Original Assignee: Peter A. Stevens
• Inventors: Stevens, Peter A.
• Application Number:
  US03/849,243
• Time in Patent Office: 1,175 Days
• US Class Current: 604/192
• CPC Class Codes: A61M 2005/2414 from the side
• CPC Class Codes: A61M 2005/312 comprising sealing means, e.g. severable caps, to be removed prior to injection by, e.g. tearing or twisting
• CPC Class Codes: A61M 5/002 Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001
• CPC Class Codes: A61M 5/24 Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic ampoules or carpules A61J1/06
• CPC Class Codes: A61M 5/3202 Devices for protection of the needle before use, e.g. caps A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/343 Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub A61M5/322 takes precedence
• CPC Class Codes: A61M 5/5086 for indicating if defective, used, tampered with or unsterile

Claims

1. A DISPOSABLE HYPODERMIC NEEDLE CONTAINING UNIT FOR PROTECTIVELY ENCLOSING AT LEAST ONE END OF A HYPODERMIC NEEDLE CANNULA WHICH COMPRISES;

A DISPOSABLE NON-VITREOUS PLASTIC NEEDLE HUB-SUPPORTING SECTION WITH AN AXIAL PASSAGE EXTENDING THERETHROUGH, SAID HUB-SUPPORTING SECTION ADAPTED TO FIXEDLY ENGAGE AN ENLARGED DIAMETER HUB SECTION FORMED ON A HYPODERMIC NEEDLE CANNULA SPACED LONGITUDINALLY FROM A PENETRATING POINT AT AN END THEREOF, A POINTED HYPODERMIC NEEDLE CANNULA WITH AN ENLARGED DIAMETER HUB SECTION FIXEDLY FORMED THEREON AND SEALABLY MOUNTED IN SAID HUB-SUPPORTING SECTION WITH A PORTION OF SAID ENLARGED DIAMETER HUB SECTION EXTENDING AXIALLY BEYOND THE END OF SAID HUB-SUPPORTING SECTION, A SHEATH SECTION EXTENDING AXIALLY FROM SAID END OF SAID HUB-SUPPORTING SECTION AND HAVING AN AXIALLY EXTENDING RECESS THEREIN CONNECTING WITH SAID AXIAL PASSAGE, A REDUCED DIAMETER SEALABLY CONNECTING SAID END OF SAID HUB-SUPPORTING SECTION WITH SAID SHEATH SECTION AND SAID FRANGIBLE SECTION BEING DISPOSED INTERMEDIATE THE ENDS OF SAID ENLARGED DIAMETER HUB SECTION AND IN ENGAGEMENT WITH SAID ENLARGED DIAMETER HUB SECTION, SAID SHEATH SECTION ADAPTED TO SEALABLY ENCLOSE SAID HYPODERMIC NEEDLE CANNULA FROM SAID CANNULA HUB SECTION TO SAID POINT WHEN SAID CANNULA HUB SECTION IS IN SEALING ENGAGEMENT WITH SAID HUB-SUPPORTING SECTION, AND SAID SHEATH SECTION ADAPTED TO BE SEVERABLE FROM SAID HUB-SUPPORTING SECTION WITHOUT DESTROYING SAID SHEATH SECTION ONLY BY ROTATION OF SAID SHEATH SECTION ABOUT SAID EXTENDING PORTION OF SAID ENLARGED DIAMETER HUB SECTION WHICH SERVES AS A PIVOTAL SUPPORT DURING ROTATION OF SAID SHEATH SECTION;

THEREBY PERMITTING REMOVAL OF SAID SHEATH SECTION WITHOUT DAMAGING SAID CANNULA.