Tampon applicator assembly
View Patent ↗A tampon applicator assembly having a barrel, a plunger, and a pledget is provided. The barrel has an insertion tip, a main section, and a finger grip. The main section can have a maximum outer dimension located closer to the finger grip than to the insertion tip and/or can have a main section taper ratio of about 1.07 to about 1.15. The insertion tip can have a taper ratio of more than about 0.66 and/or a plurality of petals with a petal length-to-width ratio over about 2 to less than about 3.
1. A tampon applicator assembly comprising:
a barrel having a first end and a second end opposite said first end, said barrel having a tubular shape and a longitudinal axis that is substantially straight, said barrel having an insertion tip at said first end, a fingergrip proximal to said second end, and a tapered main section adjacent said insertion tip and said finger grip,
said tapered main section having a maximum outer diameter located directly adjacent to said finger grip and a first wall taper that decreases in diameter from said finger grip to said insertion tip, said first wall taper having a taper ratio of about 1.07 to about 1.15,
said insertion tip having a second wall taper that decreases from said tapered main section to a distal end of the insertion tip,
said finger grip having a shoulder region adjacent to said tapered main section, a gripping region adjacent to said shoulder region, and a flared region adjacent to said gripping region opposite said shoulder region, wherein said shoulder region decreases in diameter from said tapered main section to said gripping region, and wherein said flared region has an outer diameter that continuously increases from said gripping region to said second end of said barrel, and wherein said shoulder region and said flared region can mitigate slipping of a user's fingers from said gripping region;
a plunger being slidably received in said barrel; and
a pledget being disposed in said barrel so that a force applied on said plunger expels said pledget from said barrel at said insertion end,
wherein said maximum outer diameter is located from said insertion tip about 55% to 85% of an overall length of said barrel.
2. The assembly as in claim 1 , wherein said maximum outer diameter is located from said insertion tip about 60% to 75% of said overall length of said barrel.
3. The assembly as in claim 1 , wherein said first wall taper has said taper ratio that is about 1.08 to about 1.13.
4. The assembly as in claim 1 , wherein said insertion tip further comprises a plurality of petals.
5. The assembly as in claim 1 , wherein said second wall taper has a taper ratio of between about 0.66 and about 1.6.
6. The assembly as in claim 1 , wherein said second wall taper has a taper ratio is between about 0.7 and about 0.9.
7. The assembly as in claim 4 , wherein said plurality of petals have a petal length-to-width ratio of about 0.8 to about 3.
8. The assembly as in claim 7 , wherein said petal length-to-width ratio is over about 2.
9. The assembly as in claim 1 , wherein said shoulder and flared regions each have an outer diameter that is about 10% to about 30% larger than an outer diameter of said gripping region.
10. The assembly of claim 1 , wherein said insertion tip has a plurality of petals and said second wall taper has a taper ratio of more than about 0.66.
11. The assembly of claim 1 , wherein said insertion tip has a plurality of petals, and wherein said plurality of petals have a petal length-to-width ratio over about 2 to about 3.
12. The assembly as in claim 1 , wherein said tapered main section is tapered linearly from said maximum outer diameter to said insertion tip.
13. The assembly as in claim 1 , wherein said plunger has a plunger main body between a plunger first end and a plunger second end, and wherein said plunger first end has a first outer diameter that is larger than a main outer diameter of said plunger main body.
14. The assembly as in claim 13 , wherein said plunger second end has a gradual enlargement or taper from said plunger main body that is greater than said main outer diameter.
15. The assembly as in claim 1 , wherein said plunger has a plunger main body portion between a plunger first end and a plunger second end, and wherein said plunger main body portion has a plunger main body diameter that is less than said diameter of said gripping region so that said plunger main body portion is movable through said gripping region to expel said pledget from said barrel.
16. The assembly as in claim 1 , wherein said flared region has an outer diameter that is about 15% larger than said diameter of said gripping region.
17. The assembly as in claim 1 , wherein said flared region has an outer diameter that is about 25% larger than said diameter of said gripping region.