Easily sealed and opened pre-filled, disposable pipette

Details Easily sealed and opened pre-filled, disposable pipette Easily sealed and opened pre-filled, disposable pipette

2007-05-22

2007-05-22

Nicolas, Frederick C. (Department: 3754)

Dispensing

Resilient wall

Fluid pressure generating pump or pulsator and/or removable...

C222S215000, C222S541100, C222S541900, C222S562000, C222S633000, C073S864010, C422S105000

Reexamination Certificate

active

10688818

ABSTRACT:
A pre-filled disposable pipette (10) consisting of a hollow bulb (12) dimensioned to enclose a medicinal product. From a lower end (16) of the bulb (12) is attached sequentially a medicinal transfer tube (24) and a medication fill tube (32), from where the medicinal product is applied. Between a lower end (28) of the tube (24) and an upper end (34) of the tube (32) is formed a break-away notch (40). When the tube (24) or the tube (32) is rotated, the notch (40) is twisted and breaks-off, thus allowing the medicinal product to flow from the bulb (12) and be released from the tube (24). The pipette (10) includes a primary grasping tab (46) attached to an upper end (14) of the bulb (12); a secondary grasping tab (54) attached to each side of the tube (24); and a support tab (70) attached to each side of the tube (32). The invention also discloses several methods for sealing the lower tip (36) of the medication fill tube (32).

REFERENCES:
patent: 3785366 (1974-01-01), Davis
patent: 4212204 (1980-07-01), St. Amand
patent: 4779768 (1988-10-01), St. Amand
patent: 4875602 (1989-10-01), Chickering et al.
patent: 5125544 (1992-06-01), Millner et al.
patent: 5261881 (1993-11-01), Riner
patent: 5538506 (1996-07-01), Farris et al.
patent: 6241124 (2001-06-01), Hoyt
patent: 6357626 (2002-03-01), Zhang et al.
patent: 6457612 (2002-10-01), Zhang et al.

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