Safety shield assembly

• US 6,837,877 B2
• Filed: 08/06/2001
• Issued: 01/04/2005
• Est. Priority Date: 08/23/1999
• Status: Expired due to Term

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Zurcher, Robert
• Primary Examiner(s): Thanh, LoAn H.
• Application Number:
  US09/922,620
• Publication Number:
  US 20020099342A1
• Time in Patent Office: 1,247 Days
• Field of Search: 604/187, 604/192, 604/198, 604/263, 604/164.01, 604/165.03, 604/174, 604/179, 128/919, 600/573, 600/576
• US Class Current: 604/263
• CPC Class Codes: A61B 5/15003 for venous or arterial blood
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150389 Hollow piercing elements, e.g. canulas, needles, for piercing the skin
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/150595 by snap-lock (i.e. based on axial displacement)
• CPC Class Codes: A61B 5/150671 comprising means to impede repositioning of protection sleeve from covering to uncovering position
• CPC Class Codes: A61B 5/15074 Needle sets comprising wings, e.g. butterfly type, for ease of handling
• CPC Class Codes: A61B 5/150816 by tactile feedback, e.g. vibration
• CPC Class Codes: A61B 5/153 Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
• CPC Class Codes: A61M 2005/3109 Caps sealing the needle bore by use of, e.g. air-hardening adhesive, elastomer or epoxy resin
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
• CPC Class Codes: A61M 25/0637 Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
• CPC Class Codes: Y10S 128/919 Syringe, means to protect user

Abstract

An intravenous (IV) infusion and/or blood collection assembly including a safety shield. The shield is particularly useful with winged needle assemblies. The shield is pivotally secured to the winged needle assembly to enable pivotal movement from a position away from the needle to a position enclosing the needle. The shield is lockable in a position over the used needle to prevent the user from contacting the used needle.

Claims

1. A shielded intravenous infusion or blood collection assembly comprising:

an elongate needle;

a length of tubing;

an elongate housing being supportingly interposed between said needle at a distal end and said tubing at a proximal end and in fluid communication therewith, said housing comprising a pair of oppositely directed outwardly extended wings;

a shield having a hinge with hinge axis about which said shield pivots, said shield being secured to said housing for pivotal movement about said hinge from an open position away from said needle to a closed position enclosing said needle, wherein said hinge axis is normal to a plane that bisects said wings; and

mounting means for mounting said shield to said housing wherein said mounting means includes a clip positionable about said wings adjacent said housing for securing said shield to said housing,

wherein said shield comprises a proximal end, a distal end, a pair of opposed shield sidewalls and a top surface thereby defining an elongated recess extending from said distal end to said proximal end for housing said needle therein when said shield is in said closed position;

wherein said shield sidewalls comprise at least one inwardly directed protrusion adjacent said distal end of said recess of said shield, said distal protrusion being configured so as to be deflectable by said needle when said needle enters said elongated recess and returnable to an undeflected position when said shield is in said closed position.

2. A shielded intravenous infusion or blood collection assembly comprising:

an elongate needle;

a length of tubing;

an elongate housing being supportingly interposed between said needle at a distal end and said tubing at a proximal end and in fluid communication therewith, said housing comprising a pair of oppositely directed outwardly extended wings;

a shield having a hinge with hinge axis about which said shield pivots, said shield being secured to said housing for pivotal movement about said hinge from an open position away from said needle to a closed position enclosing said needle, wherein said hinge axis is normal to a plane that bisects said wings; and

mounting means for mounting said shield to said housing wherein said mounting means includes a clip positionable about said wings adjacent said housing for securing said shield to said housing;

wherein said shield comprises a proximal end, a distal end, a pair of opposed shield sidewalls and a top surface thereby defining an elongated recess extending from said distal end to said proximal end for housing said needle therein when said shield is in said closed position,

wherein said shield comprises a top finger guide area including a first ramp that extends slightly in an upwardly slope from said proximal end of said shield to a shoulder.

3. The assembly of claim 2, wherein said first ramp includes a plurality of touch bumps.

4. A safety device for a winged needle assembly having a needle, tubing and a housing in mutual fluid communication, said device comprising:

a shield pivotally supportable to said housing for pivotal movement from an open position away from said needle to a closed position enclosing said needle, said shield being connected to said housing, wherein said shield comprises a proximal end, a distal end, a pair of opposed shield sidewalls and a top surface thereby defining an elongated recess extending from said distal end to said proximal end for housing said needle therein,

mounting means for mounting said shield to said housing, wherein said mounting means includes a pair of outwardly extending wings and a pair of clip extensions positionable about said wings adjacent said housing for securing said shield to said housing; and

a hinge interposed between said shield and mounting means, said shield having a hinge with a hinge axis about which said shield pivots, wherein said axis is normal to a plane that bisects said wings,

wherein said shield sidewalls comprise at least one inwardly directed protrusion adjacent said distal end of said recess of said shield, said distal protrusion being configured so as to be deflectable by said needle when said needle enters said elongated recess and returnable to its undeflected position when said shield is in said closed position.

5. The assembly of claim 4, wherein said shield comprises a top finger guide area including a first ramp that extends slightly on an upwardly slope from said proximal end of said shield to a shoulder, wherein said first ramp includes a plurality of touch bumps.