Manual breast pump

Details Manual breast pump Manual breast pump

1997-12-30

1999-10-26

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 106

Patent

active

059719524

ABSTRACT:
A manual powered breast pump for efficiently removing milk from a patient's breasts which provides additional milk storage capacity. The breast pump includes an outer pumping cylinder, an inner pumping cylinder and pumping seal. The inner pumping cylinder or plunger is generally a hollow cylinder having a closed end and open end. The open end is fitted with a removable cap creating a secondary collection container. The plunger is also fitted with a seal for slidably contacting the interior wall of the hollow outer pumping cylinder. The outer pumping cylinder is fitted with a nipple for connection with a breast flange and an open end for collection with a collection container. A one-way valve is fitted within the outer pumping cylinder to provide for the efficient flow of milk into the collection container and to prevent the return of milk into the breast pump during pumping operations.

REFERENCES:
patent: 883158 (1908-03-01), Wallis
patent: 933398 (1909-09-01), Stahl
patent: 4772262 (1988-09-01), Grant et al.
patent: 4813932 (1989-03-01), Hobbs
patent: 4892517 (1990-01-01), Yuan et al.
patent: 5009638 (1991-04-01), Riedweg et al.
patent: 5749850 (1998-05-01), Williams et al.
patent: 5843029 (1998-12-01), Bachman et al.

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