Needle and syringe destructor

• US 4,404,881 A
• Filed: 08/19/1981
• Issued: 09/20/1983
• Est. Priority Date: 08/19/1981
• Status: Expired due to Fees

• Current Assignee: Sage Products Incorporated
• Original Assignee: Sage Products Incorporated
• Inventors: Hanifl, Paul H.
• Primary Examiner(s): Meister, James M.
• Application Number:
  US06/294,326
• Time in Patent Office: 762 Days
• Field of Search: 83/167, 83/580, 83/618, 83/633, 83/635, 83/925 R
• US Class Current: 83/167
• CPC Class Codes: A61M 2005/3282 using mechanical means, e.g. mills
• CPC Class Codes: A61M 5/3278 Apparatus for destroying used needles or syringes needle resheathing means destroying the needle A61M5/321
• CPC Class Codes: B23D 15/12 characterised by drives or gearings therefor
• CPC Class Codes: Y10S 83/944 Syringe needle
• CPC Class Codes: Y10T 83/222 With receptacle or support for cut product
• CPC Class Codes: Y10T 83/8772 One tool edge of tool pair encompasses work [e.g., wire cutter]
• CPC Class Codes: Y10T 83/8828 Plural tools with same drive means
• CPC Class Codes: Y10T 83/885 Fixed axis lever
• CPC Class Codes: Y10T 83/8853 Including details of guide for tool or tool support

Abstract

A needle and syringe destructor is disclosed having particular suitability for the destruction of hypodermic syringe needles, of the single-use variety, immediately after use. The needle, and a portion of the syringe barrel, may be simultaneously severed in a single motion by means of the operator actuating a lever arm means. The lever arm means is linked to a pair of guillotine shears effectuating severance with increased mechanical advantage to the operator. Severed portions drop to a storage chamber. Remaining syringe barrel portions may then be discarded into the storage chamber through a movable closure lid providing separate access to the storage chamber. The severed needle and syringe are destroyed to prevent re-use and accidental injury to medical personnel.

Claims

1. A needle and syringe destructor comprising:

a base having a first portion including shearing means and a second portion including disposal means;

said shearing means comprising

a pair of guillotine shears each having a movable shear blade and a static shear blade, said movable shear blades having a shearing edge and a linkage slot, said static shear blades having opposing guide grooves accommodating said movable shear blades and each having an access aperture both being coaxial and each having a static shearing edge capable of shearing association with a movable shear blade,

a connector means movably engaging the linkage slots of said movable shear blades,

a lever arm means in pivotal relationship with said first base portion at hinge means and having attachment means engaged with said connector means linking said lever arm means with said guillotine shears,

entry portal means coaxial with said access apertures opening adjacent to a guillotine shear and opening outwardly of said first base portion,

said disposal means comprising

an opening in said second base portion,

a movable closure lid associating with said opening,

a receptacle having a peripheral edge associating with said base in removable relationship, an open side defined by said peripheral edge opening to said first and second base portions, and sidewall and lower wall portions defining a containment chamber therebetween,

wherein a needle and syringe is insertable through said entry portal means for positioning of a needle at one of the guillotine shears and a portion of a syringe barrel at the other, whereupon said lever arm is hand manipulable to actuate said movable shear blades to traverse across access apertures of said static shear blades whereby the needle and syringe barrel are severable in one traversal, whereupon severed portions enter said containment chamber and remaining syringe barrel portions extending outwardly of said entry portal means may be deposited at said disposal means through said opening by opening said movable closure lid and depositing such portions into said containment chamber of said receptacle.

2. A needle and syringe destructor as claimed in claim 1 wherein said shearing edges of said movable shearing blades are V-shaped.

3. A needle and syringe destructor as claimed in claim 1 wherein said static shearing edges of said static shear blades define peripheral edges of said access apertures.

4. A needle and syringe destructor as claimed in claim 3 wherein said static shearing edge is formed with a continuous peripheral edge of said access aperture.

5. A needle and syringe destructor as claimed in claim 4 wherein said access aperture is discontinuous having a periphiral edge disposed in a direction toward said movable shearing blade.

6. A needle and syringe destructor as claimed in claim 1 wherein said guillotine shears comprise hardened steel.

7. A needle and syringe destructor as claimed in claim 1 wherein said entry portal means is funnel-shaped.

8. A needle and syringe destructor as claimed in claim 7 wherein said access apertures of said static shear blades are funnel-shaped.

9. A needle and syringe destructor as claimed in claim 1 wherein said lever arm means associates with resilient biasing means capable of biasing said lever arm means to a retracted position facilitating insertion of a needle and syringe.

10. A needle and syringe destructor as claimed in claim 1 wherein said movable closure lid includes spring means resiliently biasing said lid to a closed position.

11. A needle and syringe destructor as claimed in claim 1 wherein said first base portion includes release means adapted to disengage said base portion from said receptacle along said peripheral edge.

12. A needle and syringe destructor capable of simultaneous dual severing of a syringe and needle in a single motion by the operator wherein severed portions safely fall to a storage chamber and wherein a remaining severed syringe barrel portion may be deposited separately into said storage chamber, said destructor comprising:

a pair of guillotine shears operable in response to an associated lever arm means, said guillotine shears and lever arm means linked by movable connector means supplying mechanical advantage to the operator, said guillotine shears and lever arm means included in a base portion having an entry portal facilitating access to said guillotine shears and hinge means pivotally connecting said lever arm means to said base portion,

said guillotine shears each comprising a movable shear blade movable downward to traverse past a cutting edge of a static shear blade by means of operation of said lever arm means, said movable shear blade residing in guide grooves of said static shear blade for close positioning of said blades to effectuate shearing action,

said guillotine shears being spaced-apart a sufficient distance whereby a syringe and needle can be positioned with a needle at one guillotine blade and a syringe barrel portion at the other guillotine shear,

said base portion removably fastened to a storage container means having a storage chamber opening to said guillotine shears whereby severed needles and syringe portions may fall safely into said storage chamber upon severance, said base portion further having disposal means including a closure lid means movably opening to said storage chamber whereby remaining severed syringe barrel portions may be discarded into said storage chamber following severance.

13. A needle and syringe destructor as claimed in claim 12 wherein said lever arm means associates with resilient biasing means urging said lever arm means to a retracted position facilitating insertion of a needle and syringe into the destructor.

14. A needle and syringe destructor as claimed in claim 12 wherein each said static shear blade includes an access aperture, at least a portion of which comprises said cutting edge, cooperative with said movable shearing blades and wherein said access apertures are coaxial with said entry portal of said base portion.

15. A needle and syringe destructor as claimed in claim 12 wherein said movable connector means comprises a rod member connecting said lever arm means to said movable shear blades.

16. A needle and syringe destructor as claimed in claim 15 wherein said movable shear blades include a linkage slot movably engaged by said rod member.