Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Organic light-emitting display and method of manufacturing the same
Bi-directional switch using series connected N-type MOS devices in parallel with series connected P-type MOS devices
Cellulose derivative and hydrogel thereof
Stool
All-in-one information handling system
Adaptive flow for thermal cooling of devices
Multiple CQI feedback for cellular networks
  Randomly Featured Patents
Polysiloxane-styrene-butadiene terpolymers and use in toners
Query processing method
Method and apparatus for producing composites of materials exhibiting thermoplastic properties
Method of inducing memory B cell development and terminal differentiation
Mapping a port on a packet switch appliance
Switching power supply
Procsss for preparing carbonyl compounds
Scheduling and tracking system and method for bakery products
Scalable and efficient intra-domain tunneling mobile-IP scheme
Apparatus for continuously producing raised marks on plastic cable jackets