Passive milk collection vessel
A passive milk collection device for storing milk comprises a flexible inner member including a nipple hole for receiving a nipple, and in which, in use, part of the rear surface of the inner member is configured to securely seal onto a user's breast. The device includes a removable rigid outer member configured to attach onto the front surface of the inner member and to provide a free air space around the nipple area for storing milk from the nipple. The circumference of the outer edge of the rear surface of the flexible inner member is substantially larger than the circumference of the rigid outer member.
1. A passive milk collection device for storing milk comprising:
a flexible inner member comprising a front surface, a rear surface, and a nipple hole configured to receive a nipple, wherein in use, at least part of the rear surface of the inner member is configured to securely seal onto a user's breast; and
a removable rigid outer member configured to attach onto the front surface of the inner member and to provide a free air space around the nipple area for storing milk from the nipple, wherein the circumference of an outer edge of the rear surface of the flexible inner member is larger than the circumference of the rigid outer member.
2. The device of claim 1 , wherein at least part of the rear surface of the flexible inner member around or near the nipple hole is configured to seal or self-seal against the breast.
3. The device of claim 1 , wherein the flexible inner member is configured to, in use, provide a substantially continuous contour or surface with the breast.
4. The device of claim 1 , wherein the flexible inner member is configured at least in part to deform outwards when pressed against the breast to create a low negative air pressure inside the device sufficient to adhere the device to the breast.
5. The device of claim 1 , further comprising one or more ventilation holes or openings.
6. The device of claim 5 , wherein the ventilation hole or opening is configured to be plugged using an elastic feature built into the inner member, or a separate plugging member.
7. The device of claim 1 , wherein the flexible inner member is not circular.
8. The device of claim 1 , wherein a rear or outermost edge of the inner member is not parallel with a rear edge of the outer member, but instead a top of the rear or outermost edge of the inner member is further away from the rear edge of the outer member than a bottom of the edge of the inner member.
9. The device of claim 1 , wherein the nipple hole comprises an asymmetrical shape.
10. The device of claim 1 , wherein the nipple hole is located, in use, above the height mid-point line of the rear surface of the inner member.
11. The device of claim 1 , wherein the outer member is configured to collect let-down milk.
12. The device of claim 1 , wherein the outer member comprises a convex outer surface.
13. The device of claim 1 , wherein the outer member is configured to be pressed or pushed into engagement with the inner member such that the inner member retains the outer member.
14. The device of claim 1 , wherein the outer member is configured to seal against the inner member.
15. The device of claim 1 , further comprising an attachment is configured to retain the outer member in attachment with the inner member.
16. The device of claim 1 , wherein a sealing lip extends transversely around or near a periphery of the front surface of the inner member.
17. The device of claim 1 , wherein a bump feature extends transversely around or near an internal periphery of the inner member.
18. The device of claim 1 , wherein the outer member includes a flat portion configured to allow the device to rest on its front on a surface.
19. The device of claim 1 , wherein the device is configured to substantially fit inside a bra.
20. The device of claim 1 , wherein the device is substantially transparent.