Resources Contact Us Home
Breastshield with multi-pressure and expansible chamber construction, related breastpump and method

Image Number 13 for United States Patent #6663587.

Inner and outer shield parts of a breastshield are joined to form an enclosure defining a pressurizable chamber. The inner shield part has at least a portion thereof movable relative to the outer shield part when the chamber is subject to a negative or a positive pressure. A first pressure port is in communication respectively with the chamber for connection with a fluid pressure source of a first pressure. A second pressure port is in communication with the interior for connection with a pressure source of a second pressure. The breastshield is thus capable of being subjected to two different pressures, such as a positive pressure to move (expand) the chamber into the interior, so as to compress or massage the nipple/breast, and a negative pressure in the interior to draw the nipple/breast further therein for the expression of milk. The pressures can be independently controlled, and may furthermore alternate being negative and positive through the same pressure port. In one embodiment, an enclosure defines first and second chambers. The chambers are separate from each other and independently pressurizable. A greater plurality of chambers is furthermore contemplated. The invention takes the form of a variety of different embodiments of breastshields and breastpumps for breastmilk pumping having sundry novel attributes and advantages.

  Recently Added Patents
Human renal disease marker substance
Automated processing machine used for processing samples placed on slides and having an output device
Sensor controller, navigation device, and sensor control method
Methods and system for providing drug pricing information from multiple pharmacy benefit managers (PBMs)
Method and system for encrypting data in a wireless communication system
System and method for displaying relationships between electronically stored information to provide classification suggestions via inclusion
Data recording apparatus with recording control based on defect block and control method thereof
  Randomly Featured Patents
Backlight assembly and liquid crystal display apparatus having the same
Distributed impedance sensor
Illumination device for an aircraft
"Channel guide" automatically activated by the absence of program information
Substrate for very large scale integrated circuit and apparatus for selective tinning of the substrate leads
Transfer fluxing method and apparatus for component placement on substrate
Entertainment center cabinet
Dry mix dispensing apparatus and method
Brushless generator with front cover inner-stator mount
Oven with improved functionality during grilling