Protector for intravenous and syringe needles

• US 5,011,475 A
• Filed: 06/02/1989
• Issued: 04/30/1991
• Est. Priority Date: 06/02/1989
• Status: Expired due to Fees

• Current Assignee: Richard A. Olson
• Original Assignee: Richard A. Olson
• Inventors: Olson, Richard A.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): Lewis, Ralph A.
• Application Number:
  US07/360,770
• Time in Patent Office: 697 Days
• Field of Search: 604/192, 604/263, 604/197, 604/198
• US Class Current: 604/192
• CPC Class Codes: A61M 2039/042 Shrouds encircling the access needle preventing accidental needle-stick
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
• CPC Class Codes: A61M 5/3243 being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel devices for protecting guide needles in combination with catheters A61M25/0612

Abstract

This invention includes an external protective sheath for normally enclosing a medical needle to provide a safety protective enclosure normally surrounding the needle, but being adapted to be temporarily removed from needle enclosing protective position to expose the needle for use in penetrating a patient'"'"'s blood vessel for injection of medication from a syringe or for introduction of intravenous tubing and said sheath being moveable back into protective position around the needle after use.

Claims

1. A projector assembly for injection needles comprising,

a mounting hub,

a needle attached to said mounting hub,

an elongated hollow protective sheath member mounted on said hub to normally surround the entire needle, and having openings extending longitudinally along both sides thereof to permit the needle to be inserted into one of two conduits of an IV tube assembly in place in a patient'"'"'s blood vessel,

the sheath being pivotally mounted on the mounting hub to permit pivotal retraction of the sheath from the needle on either side thereof to expose the needle for use and permit the sheath to be moved back into protective position around the needle after use and

a pair of respectively engageable positioning stop elements respectively mounted on the hub and the sheath for positively positioning the sheath in its desired protective position when said stop elements are engaged.

2. A protector assembly for injection needles comprising,

a mounting hub,

a needle attached to said mounting hub,

an elongated hollow protective sheath member mounted on said hub to normally surround entire needle, and having openings extending longitudinally along both sides thereof to permit the needle to be inserted into one of two conduits of and IV tube assembly in place in a patient'"'"'s blood vessel,

the sheath is pivotally mounted on the mounting hub to permit pivotal retraction of the sheath from the needle to expose the needle for use and permit the sheath to be moved back into protective position around the needle after use,

and a slide member mounted for longitudinal movement on the mounting hub axially of the needle and having camming means connected with said sheath and the slide in a manner to cause the sheath to be pivoted upwardly into retracted position when the slide is shifted forwardly and to project the sheath downwardly into protective position when the slide is retracted rearwardly.

3. The structure set forth in claim 2 and said camming means including a pair of camming slots formed in the sheath, and

a camming pin mounted on said slide and extending outwardly into the camming slots formed in said sheath to forcibly project the sheath upwardly when the slide is projected forwardly.