Conception device and related methods
A conception device includes a dome having a collapsible sidewall, an annular rim, an integral dome rib, and three or more gripping flanges along the inner surface of the rim. The gripping flanges may effectively position and secure the device over the cervix for the concentration of semen on the cervical os to effect fertilization independently or with the aid of biologically active agents. The device may additionally include a handle extending from the annular rim at an angle.
1. A conception device for positioning over a cervix to concentrate semen and promote fertilization, the device comprising:
an annular rim; and
a dome formed of a unitary construction extending from the annular rim, the dome defining a receptacle area and including a closed tip, a base portion and a sidewall extending between the closed tip and the base portion, and the dome having an integral dome rib
wherein the integral dome rib is configured to cause or allow a predetermined collapse of the sidewall in a direction generally perpendicular to the annular rim.
2. The conception device of claim 1 , wherein the integral dome rib is a spiral rib extending in a downward spiral around the dome and extending between the base portion to a portion of the sidewall proximate to the closed tip.
3. The conception device of claim 2 , wherein the spiral rib is formed of a plurality of discrete raised projections disposed in an end-to-end configuration.
4. The conception device of claim 2 , wherein the spiral rib is configured to provide rigidity to cause or allow the predetermined collapse.
5. The conception device of claim 2 , further comprising a plurality of ridges outwardly extending from the sidewall, and connecting to the annular rim; and wherein the spiral rib extends on both sides of a ridge of the plurality of ridges.
6. The conception device of claim 5 , wherein the sidewall includes a first portion adjacent the annular rim and a second portion proximate the closed tip, the plurality of ridges formed on the first portion.
7. The conception device of claim 2 , wherein the spiral rib extends from the annular rim to the portion of the sidewall proximate to the closed tip.
8. The conception device of claim 1 , wherein the integral dome rib is one or more ring ribs extending around the dome.
9. The conception device of claim 8 , wherein each ring rib of the one or more ring ribs is formed of a plurality of discrete raised projections disposed in an annular or spiral configuration.
10. The conception device of claim 8 , wherein there is more than one ring rib and the more than one ring ribs are equidistantly spaced.
11. The conception device of claim 1 , wherein the unitary construction has a first thickness at the closed tip, has a second thickness at the sidewall proximate the closed tip, and has a third thickness at the sidewall proximate the annular rim, the second thickness being less than both the first thickness and the third thickness such that the sidewall is collapsible at a portion of the sidewall including the second thickness in a predefined manner due to compression by a vaginal cavity to raise a floor defined by an inner surface of the tip toward the annular rim in the direction generally perpendicular to the annular rim.
12. The conception device of claim 11 , wherein the base portion includes a base thickness, the base thickness being greater than the second thickness; and a portion of the sidewall including the second thickness is configured to collapse about a perimeter thereof in the direction perpendicular to the annular rim.
13. The conception device of claim 1 , wherein the annular rim and the dome are formed of a material suitable for use in a vagina.
14. The conception device of claim 1 , wherein the integral dome rib is configured to restrict bunching up of the device against a side of said cervix.
15. The conception device of claim 1 , further comprising two or more flanges extending radially inward from the annular rim about a half millimeter.
16. The conception device of claim 1 , wherein the integral dome rib is configured to provide strength, rigidity, and lateral stability to the dome to allow for the device to be frozen with sperm in the receptacle area.
17. The conception device of claim 1 , wherein the dome has a length greater than a width.
18. A method of increasing a likelihood of conception in a subject having a cervix, the method comprising the steps of:
(a) providing a conception device having an annular rim, a dome of a unitary construction, the dome including a base portion, a closed tip, a sidewall extending between the closed tip and the annular rim, and the dome having an integral dome rib, wherein the closed tip having a first thickness and the sidewall having a second thickness proximate the closed tip and a third thickness proximate the annular rim, the second thickness being less than both the first thickness and the third thickness, an inner surface of the tip defining a floor;
(b) positioning the annular rim around the cervix to secure the conception device to the cervix; and
(c) collapsing a first portion of the sidewall of the conception device including the second thickness after step (b) in a predefined manner due to compression by a vaginal cavity so as to raise the floor in a direction perpendicular to the annular rim and toward the cervix while providing a direct path to a cervical os for contents within the device and supported by the tip; and
wherein the integral dome rib is configured to cause or allow the collapsing of the first portion.
19. The method of claim 18 , wherein the integral dome rib is a spiral rib extending in a downward spiral around the dome and extending between the base portion to a portion of the sidewall proximate to the closed tip.
20. The method of claim 18 , wherein the integral dome rib is one or more ring ribs extending around the dome.
21. The method of claim 18 , wherein the closed tip and the sidewall are formed of a single material that defines the first and second thicknesses.
22. The method of claim 18 , wherein a second portion of the sidewall has a plurality of ridges outwardly extending therefrom, and further comprising maintaining the shape of the second portion of the sidewall with the plurality of ridges.
23. The method of claim 18 , further comprising uniformly collapsing a second portion of the sidewall about a perimeter thereof in the direction perpendicular to the annular rim.
24. A conception device for positioning over a cervix to concentrate semen and promote fertilization, the device comprising:
an annular rim; and
a dome of a unitary construction formed of a single material, the dome extending from the annular rim, the dome defining a receptacle area and including a closed tip, a base portion and a sidewall extending between the closed tip and the base portion, and the dome having an integral spiral rib extending in a downward spiral around the dome and extending between the base portion to a portion of the sidewall proximate to the closed tip; and
wherein the integral spiral rib is configured to cause or allow collapse of the sidewall in a predefined manner in a direction generally perpendicular to the annular rim.
25. The conception device of claim 24 , wherein the dome has a first thickness at the closed tip, a second thickness at the sidewall proximate the tip and a third thickness at the sidewall proximate the annular rim, the second thickness being less than both the first thickness and the third thickness, such that the sidewall is collapsible at a portion including the second thickness in the predefined manner due to compression by a vaginal cavity to raise a floor defined by an inner surface of the tip toward the annular rim in the direction generally perpendicular to the annular rim.