Methods of packaging intravaginal device
View Patent ↗A method of folding a plurality of flexible elements about a central fluid storage element includes of urging an intravaginal device into a folding device; imparting relative rotation between at least a portion of the folding device and the intravaginal device; and contacting the plurality of flexible extensions with the folding device. Wherein the intravaginal device includes a fluid storage element and a plurality of flexible extensions extending therefrom, and the flexible extensions are folded about the fluid storage element in a uniform direction. Alternatively, in place of relative rotation, the flexible extensions are folded by means of guide rails of the folding device. Several apparatus may be employed in this and related methods.
1. A method of folding a plurality of flexible elements about a central fluid storage element comprising the steps of:
a. urging an intravaginal device comprising a fluid storage element which comprises a substantially cylindrical mass of compressed absorbent material having a fluid-permeable cover disposed about an outer circumferential surface of the substantially cylindrical mass of compressed absorbent material and a plurality of sheet-like flexible extensions attached by at least one attachment to the cover of the fluid storage element, the sheet-like flexible extensions having a thickness of about 0.005 to about 0.25 inches extending therefrom into a folding device;
b. imparting relative rotation between at least a portion of the folding device and the intravaginal device; and
c. contacting the plurality of flexible extensions with the folding device thereby folding the flexible extensions about the fluid storage element in a uniform direction.
2. The method of claim 1 , wherein the folding device comprises a rotating element having an inner bore defined along its axis of rotation.
3. The method of claim 2 , wherein the rotating element comprises a cylinder centered on the axis of rotation.
4. The method of claim 2 , wherein a feed aperture is enlarged with respect to the inner bore.
5. The method of claim 2 , wherein the inner bore is substantially smooth.
6. The method of claim 2 , wherein the inner bore has a plurality of roller bearings disposed thereabout.
7. The method of claim 2 , wherein the inner bore has a plurality of radial slots extending therefrom.
8. The method of claim 7 , wherein the number of slots corresponds to the number of flexible extensions on the intravaginal device.
9. The method of claim 2 , wherein the rotating element rotates substantially continuously.
10. The method of claim 9 , wherein the rotating element rotates at about 600 to about 1,000 revolutions per minute (“rpm”).
11. The method of claim 2 , wherein the rotating element rotates substantially intermittently.
12. The method of claim 11 , wherein the rotating element rotates in a reciprocating manner.
13. The method of claim 11 , wherein the rotating element rotates in a single rotational direction.
14. The method of claim 1 , wherein the folding device folds each flexible element through an angle of at least 180 degrees.
15. The method of claim 1 , wherein the at least one attachment of the extensions is located at the side of the fluid storage element.
16. The method of claim 1 , wherein the at least one attachment of the extensions is located proximate the insertion end of the fluid storage element.
17. The method of claim 1 , wherein the at least one attachment of the extensions is located proximate the withdrawal end of the fluid storage element.