Cervical pad

1. A cervical pad, comprising:

a rim configured to span a vaginal opening adjacent to a cervical os;

a first membrane layer sealingly connected to the rim, the first membrane layer configured to allow passage of vaginal discharge;

a second membrane layer sealingly connected to the rim, the second membrane layer configured to allow passage of vaginal discharge; and

a flexible absorbent insert disposed in and at least partially enclosed by the first membrane layer and the second membrane layer, the flexible absorbent insert configured to absorb and collect vaginal discharge.

2. The cervical pad as recited in claim 1 , wherein the rim has a generally rectangular transverse cross-section with an inner side surface substantially parallel to an outer side surface.

3. The cervical pad as recited in claim 2 , wherein a height of the rim is greater than a thickness of the rim.

4. The cervical pad as recited in claim 1 , wherein an outer diameter of the rim is about two inches to about four inches.

5. The cervical pad as recited in claim 1 , wherein an inner diameter of the rim is about ¾ inches to about 2½ inches.

6. The cervical pad as recited in claim 1 , wherein a thickness of the rim is about ¼ inch.

7. The cervical pad as recited in claim 1 , wherein the first and second membrane layers comprise a substantially impervious material.

8. The cervical pad as recited in claim 1 , wherein the first and second membrane layers are fenestrated.

9. The cervical pad as recited in claim 8 , wherein a total open area defined by apertures is between about 5% and about 95% of an area defined by the rim.

10. The cervical pad as recited in claim 8 , wherein a diameter of the apertures is about 0.2 inches to about 0.4 inches, and a density of apertures per square inch is about 2 apertures per square inch to about 8 apertures per square inch.

11. The cervical pad as recited in claim 1 , wherein a material for the absorbent insert comprises at least one of natural fibers, synthetic fibers, needle-punched engineered absorbents, fiber tows, tow webs, or cellulosic sponge materials.

12. The cervical pad as recited in claim 1 , wherein a material for the absorbent insert comprises a superabsorbent material.

13. The cervical pad as recited in claim 12 , wherein a material for the absorbent insert includes sodium carboxy methyl cellulose.

14. The cervical pad as recited in claim 1 , wherein a depth of the cervical pad is about 0.04 inches to about 0.4 inches.

15. The cervical pad as recited in claim 1 , wherein a thickness of the rim is about 0.004 inches to 0.2 inches.

16. The cervical pad as recited in claim 1 , wherein a volume of a collection space defined by the rim is about two ounces.

17. The cervical pad as recited in claim 1 , wherein the first membrane layer, the second membrane layer, and the flexible absorbent insert are generally flat.

18. The cervical pad as recited in claim 1 , wherein the first membrane layer and the second membrane layer are generally flat.

19. The cervical pad as recited in claim 1 , wherein the cervical pad comprises a non-woven fabric.

20. The cervical pad as recited in claim 1 , wherein an outer diameter of the cervical pad is greater than an inner diameter of the rim.

21. The cervical pad as recited in claim 1 , wherein the cervical pad is positioned below a lower edge of the rim.

22. The cervical pad as recited in claim 1 , wherein the first membrane layer and the second membrane layer comprise polyethylene.

23. The cervical pad as recited in claim 22 , wherein the first membrane layer and the second membrane layer are fenestrated.