Intra-vaginal devices and methods for treating fecal incontinence
Devices and methods for intra-vaginal bowel control.
1. An intravaginal device for the control of passage of stool in an adult human female user, the device comprising:
an intravaginal stabilizing portion having a central lateral axis and a proximal portion and a distal portion, each on opposite sides of the central lateral axis, the proximal portion being configured to be positioned in a superior portion of a vaginal cavity of the user; and
an expandable member having a dome-shaped portion, the dome-shaped portion being positioned substantially entirely within the proximal half of the stabilizing portion, the expandable member having an expanded state and a retracted state,
wherein the stabilizing portion is sized and configured to fit entirely within the user's vagina with a longitudinal extent of the stabilizing portion extending substantially along a length of the vagina to hold the expandable member in contact with a rectovaginal septum and proximal to a perineal body of the user to control the passage of stool through a rectum of the user.
2. The intravaginal device of claim 1 wherein the device is sized and configured to maintain position and stability in the user's vagina through engagement of internal vaginal anatomy during repeated extensions of the dome-shaped portion.
3. The intravaginal device of claim 1 wherein the dome-shaped portion has a lateral span less than a lateral span of the stabilizing body.
4. The intravaginal device of claim 1 wherein the dome-shaped portion has a lateral width of 20-60 mm.
5. The intravaginal device of claim 1 wherein a lateral span of the stabilizing portion proximate to the dome-shaped portion is less than a lateral span of the stabilizing portion not proximate to the dome-shaped portion.
6. The intravaginal device of claim 1 wherein the dome-shaped portion is disposed in a posterior region of the stabilizing portion.
7. The intravaginal device of claim 1 wherein the thickness in the extension direction of the stabilizing portion is less than the length in the extension direction of the dome-shaped portion when the dome-shaped portion is fully extended.
8. The intravaginal device of claim 7 wherein the thickness in the extension direction of the stabilizing portion proximate to the dome-shaped portion is less than the length in the extension direction of the dome-shaped portion when the dome-shaped portion is fully extended.
9. The intravaginal device of claim 1 wherein the thickness of the stabilizing portion in the extension direction is less than the width of the stabilizing portion in a direction perpendicular to the extension direction.
10. The intravaginal device of claim 1 wherein an anterior side of the stabilizing portion is planar.
11. The intravaginal device of claim 1 wherein the stabilizing portion comprises a structural perimeter surrounding a substantially open space.
12. The intravaginal device of claim 10 further comprising a support structure in an open space adapted and configured to support the dome-shaped portion.
13. The intravaginal device of claim 1 further comprising a cushioning member adapted to reduce trauma to the user's vaginal tissue.
14. The intravaginal device of claim 13 wherein the cushioning member is disposed proximally on the device so as to be in the proximity of the cervix or vaginal cuff when the device is inserted into the user's vagina.
15. The intravaginal device of claim 13 wherein the cushioning member is disposed opposite to the dome-shaped portion.
16. The intravaginal device of claim 13 wherein the cushioning member comprises a part of the device that is more flexible than a part of the stabilizing portion.
17. The intravaginal device of claim 13 wherein the cushioning member comprises an outer layer of a material disposed over an inner gel or gel-like material.
18. The intravaginal device of claim 13 wherein the cushioning member comprises a part of the device that has a greater contact surface area than a part of the stabilizing portion.
19. The intravaginal device of claim 1 wherein the dome-shaped portion is inflatable and has an inner material that is less permeable to air than an outer material of the dome-shaped portion.
20. The intravaginal device of claim 1 further comprising a fluid inflation device adapted to inflate the dome-shaped portion, the fluid inflation device comprising a valve adapted to limit the force applied to the rectovaginal septum.
21. The intravaginal device of claim 1 wherein the dome-shaped portion is positioned entirely within the proximal half of the stabilizing portion.