Blister pack opener-ejector

• US 5,431,283 A
• Filed: 04/01/1994
• Issued: 07/11/1995
• Est. Priority Date: 01/21/1993
• Status: Expired due to Term

• Current Assignee: Primary Delivery Systems Incorporated
• Original Assignee: Primary Delivery Systems Incorporated
• Inventors: Harrold, John E., Weinstein, Jack
• Primary Examiner(s): Sipos, John
• Assistant Examiner(s): TOLAN, EDWARD THOMAS
• Application Number:
  US08/222,403
• Time in Patent Office: 466 Days
• Field of Search: 53/492, 53/381.2, 206/531 I, 206/532, 206/539, 206/469, 206/528, 206/535, 220/284, 229/204, 229/229, 229/103, 30/358, 30/363, 30/125, 30/124, 83/167, 225/103, 225/93
• US Class Current: 206/531
• CPC Class Codes: A61J 1/035 Blister-type containers blisters in general B65D75/36
• CPC Class Codes: B65B 69/0041 by puncturing
• CPC Class Codes: B65D 5/42 Details of containers or of foldable or erectable container blanks
• CPC Class Codes: B65D 5/5286 the container being provided with an opening or weakened area in which an item is inserted
• CPC Class Codes: B65D 75/34 and having several recesses to accommodate a series of articles or quantities of material not used
• CPC Class Codes: B65D 77/40 Rigid cutting or tearing devices

Abstract

The present invention is directed to a blister pack opener which includes a structure designed to receive a soft pack of individually segregated unit dosages of medication. The opener or soft pack puncturing mechanism has a first component, a second component and a third component which are hingedly connected to one another. The first component is a blister pusher and has a unit dosage section base protrusion thereon. The second component is a blister positioner and has an orifice located thereon which is of sufficient size to receive a unit dosage section of a soft pack commonly referred to as a "blister" and the third component is a blister cutter/ejector and has a cutting protrusion adapted to nest within the orifice of the second component and around the base protrusion of the first component so as to cut the packaging and eject the cut piece of the packaging along with the pill. Thus, the cutting protrusion has sufficient height so as to puncture a blister or dosage unit section of a soft pack medication. When a pack is placed within the first component so that dosage unit or "blister" is placed within the orifice of the second component, and then the second component and third component are hingedly pushed downwardly, the cutting protrusion on the third component will puncture the foil or flat element of the blister pack. Preferably, the cutting protrusion has toothed edges on this protrusion to enhance puncturing.

Claims

1. A soft pack opener, which comprises:

(a) a first component, being a blister pusher, and having a bottom and a blister base protrusion on said bottom of a respective size to receive a corresponding dosage unit section of a soft pack;

(b) a second component being hingedly connected to said first component, said second component being a blister positioner and having a guide orifice therethrough of sufficient size and height so as to fit over said base protrusion of said first component; and

,

(c) a third component, being a cutter/ejector, said third component having a puncture mechanism, said puncture mechanism having a puncture mechanism protrusion of a predetermined size and shape selected so as to nest within said guide orifice of said second component, the puncture mechanism protrusion having a predetermined height and a cross-sectional opening, both relating to the dimensions of a dosage unit of a soft pack backing, the predetermined height and cross-sectional opening being selected so as to puncture said dosage unit of a soft pack backing and so as to retain space between the puncture mechanism protrusion and the dosage unit when said dosage unit section is placed within upon said base protrusion of said first component and in said guide orifice of said second component while said second component and said third component are hingedly pushed downwardly toward said first component, said third component being hingedly connected to at least one of said first component and said second component.

2. The opener of claim 1 wherein the puncturing mechanism protrusion has a predetermined strength, the predetermined strength being greater than the strength of the soft pack backing, the predetermined strength selected to puncture a dosage unit section of the soft pack backing of the soft pack.

3. The opener of claim 1 wherein the puncturing mechanism protrusion is a thin, tapered protrusion.

4. The opener of claim 3 wherein the puncturing mechanism protrusion has a cutting edge.

5. The opener of claim 1 wherein said puncturing mechanism protrusion is a thin, tapered member formed of a plastic material.

6. The opener of claim 1 wherein said first component and said second component are in the form of a unistructural member and are hingedly connected to one another by a living hinge.

7. The opener of claim 1 wherein said third component is hingedly connected to said second component at one end being a hingeable portion, said puncturing mechanism protrusion being located near the opposite end of the hingeable portion.

8. The opener of claim 7 wherein said puncturing mechanism protrusion is a thin, tapered member formed of a plastic material.

9. The opener of claim 1 wherein said first component and said second component have interacting ledges and protrusions to hold them together in a closed position.

10. The opener of claim 9 wherein said first component and said second component are constructed so as to create a spring bias relative to one another when in said closed position.

11. The opener of claim 1 wherein said first and second components have side walls of predetermined dimensions so as to allow said second component to at least partially rest within said first component.

12. The opener of claim 2 wherein said first and second components have side walls of predetermined dimensions so as to allow said second component to at least partially rest within said first component.

13. The opener of claim 6 wherein said first and second components have side walls of predetermined dimensions so as to allow said second component to at least partially rest within said first component.

14. The opener of claim 7 wherein said first and second components have side walls of predetermined dimensions so as to allow said second component to at least partially rest within said first component.