Pressure system with absolute pressure sensor

Patent metadata

Field	Value
Publication number	US-11058808-B2
Application number	US-201615096720-A
Country	US
Kind code	B2
Filing date	Apr 12, 2016
Priority date	Apr 13, 2015
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A pressure system in a communication loop with an atmospheric pressure data source is set forth. Atmospheric pressure data from the atmospheric pressure data source can be received by a processor to set one or more operating parameters for the pressure system based on environmental data provided in the atmospheric pressure data from an absolute pressure sensor or other atmospheric data source.

First claim

What is claimed is:

1. A breastmilk expression system comprising:
a pressure circuit;
a breastshield component in communication with the pressure circuit to apply pressure to a breast of a user;
a user interface;
a pressure source connected to the pressure circuit and comprising a volume displacing mechanism; and
a controller in communication with the pressure source and the user interface, and configured to:
receive, via the user interface, location data identifying a location,
determine an atmospheric pressure associated with the location identified by the location data,
determine, based on the atmospheric pressure, (i) a minimum vacuum level for operating the breastmilk expression system, and (ii) a peak vacuum level for operating the breastmilk expression system,
set the peak vacuum level,
set the minimum vacuum level, and
control a displacement of the volume displacing mechanism to cause the breastshield component to adjust the pressure applied by the breastshield component to the breast of the user to be within the minimum vacuum level and the peak vacuum level.

2. The breastmilk expression system of claim 1 , wherein the pressure source is a positive pressure source or a negative pressure source.

3. The breastmilk expression system of claim 1 , further comprising:
an atmospheric pressure element exposed to ambient air.

4. A method for operating a breastmilk expression system, the method comprising:
providing the breastmilk expression system comprising:
a pressure circuit,
a breastshield component in communication with the pressure circuit to apply pressure to a breast of a user,
a user interface, and
a pressure source connected to the pressure circuit and comprising a volume displacing mechanism;

receiving, via the user interface, location data identifying a location;
determining an atmospheric pressure associated with the location identified by the location data;
determining, by a controller in communication with the user interface and the pressure source, and based on the atmospheric pressure, (i) a minimum vacuum level for operating the breastmilk expression system, and (ii) a peak vacuum level for operating the breastmilk expression system;
setting, by the controller, the peak vacuum level;
setting, by the controller, the minimum vacuum level; and
controlling, by the controller, a displacement of the volume displacing mechanism to cause the breastshield component to adjust the pressure applied by the breastshield component to the breast of the user to be within the minimum vacuum level and the peak vacuum level.

5. The method of claim 4 , wherein the pressure source is a positive pressure source or a negative pressure source.

6. The method of claim 4 , wherein providing the breastmilk expression system further comprises an atmospheric pressure element exposed to ambient air.

Assignees

• Medela Holding Ag

Inventors

• Simmons Bryan D
• Skach John R
• Cho David

Classifications

• A61M1/74 Primary

  Suction control (underwater drainage A61M1/61) · CPC title

• A61M2205/52

  with memories providing a history of measured variating parameters of apparatus or patient · CPC title

• A61M2205/3358

  Measuring barometric pressure, e.g. for compensation · CPC title

• A61M2205/3584

  using modem, internet or Bluetooth® · CPC title

• A61M2205/50

  with microprocessors or computers · CPC title