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Breast pump adapter for filling infant nursers having disposable liners and methods of operation

  • US 5,358,476 A
  • Filed: 01/28/1993
  • Issued: 10/25/1994
  • Est. Priority Date: 08/17/1990
  • Status: Expired due to Fees
First Claim
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1. A method of filling an infant nurser including a rigid shell and a flexible liner within said shell romping a container for storing milk and employing an adapter having a chamber in the adapter in communication with a breast shield, and a passage through said adapter for communication between said chamber and said flexible container, comprising the steps of:

  • applying a first pressure within the chamber in communication with a female breast through the breast shield for expressing milk from the breast into the chamber in response to the application of said first pressure in said chamber, the step of applying said first pressure including applying a negative suction to said chamber to draw a portion of said flexible liner against said adapter to seal said passage;

    applying a second pressure within said chamber higher than said first pressure to displace the flexible liner portion away from said adapter to enable flow of milk from said chamber through said passage into the flexible container;

    temporarily storing in said chamber the milk expressed during application of said first pressure;

    flowing the milk from said chamber into said flexible container during application of said second pressure; and

    alternating the pressure applied to said chamber between said first and second pressures.

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