Patents Assigned to Ameda AG
  • Patent number: 5009638
    Abstract: The breast pump comprises a milk reservoir and a flanged closure member for connection with the reservoir; the closure member comprises a suction bell and a suction pump suitable for single-handed manual operation and includes (a) a cylinder integrally connected with the closure member; (b) a piston for reciprocating motion within the cylinder between a first or lower position and a second or upper position, and (c) a spring-loaded actuator for insteraction with the piston.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: April 23, 1991
    Assignee: Ameda AG
    Inventors: Robert Riedweg, Klaus Schlensog
  • Patent number: 4799922
    Abstract: A breast pump insert formed of a soft, resilient and translucent polymer material, such as a silicon polymer, that is inert against boiling water has a monolithic self-supporting structure consisting of a first or funnel-shaped portion for contact with a nipple-encompassing breast area and for providing a deformable sealing connection between the nipple-encompassing area and the suction bell of the breast pump when the pressure is reduced therein; and of a second or thimble-shaped portion for maintaining an enclosure around the nipple-encompassing area when the pressure is reduced within the pump; the thimble-shaped portion of the insert has an elongated and essentially tubular longitudinal wall section and an essentially transverse end wall section that provides a helmet-shaped end of the structure and includes at least one perforation for permitting passage of milk; the timble-shaped portion is formed and dimensioned to prevent axial collapse thereof under normal use conditions.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: January 24, 1989
    Assignee: Ameda AG
    Inventors: Christian Beer, Robert Riedweg, Klaus Schlensog
  • Patent number: 4673388
    Abstract: The breast pump (1) for sucking off breast milk has a suction bell (10), which is intended to be laid against the breast and which is connected with a storage container (12) for pumped-off milk arranged at an angle to the longitudinal axis (A.sup.3) of the suction bell and with a suction pump (15) driven by an electric motor (11), in order to produce sufficient suction for the pumping-off process inside the suction bell; the pump (1) has an attachment housing (18) which comprises two limbs (14, 16) connected to each other at an angle, which housing is connected in a detachable manner with the suction bell (10) and contains the electric motor (11), a low voltage current source (13) for the latter, for example, a battery or an accumulator, and the suction pump (15). The longitudinal axis (A.sup.1) of one (14) of the limbs of the housing lies practically parallel to the longitudinal axis (A.sup.3) of the suction bell (10) and the longitudinal axis (A.sup.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: June 16, 1987
    Assignee: Ameda AG
    Inventors: Klaus Schlensog, Christian Beer, Robert Riedweg
  • Patent number: 4617912
    Abstract: An incubator for neonatology has a chamber to receive a baby and to maintain it under aerated and heat-controlled conditions; the chamber is enclosed by a bottom shell and a transparent topy casing; heating and aerating means as well as an air distribution system are provided; passage of heat-controlled air through the chamber is optimized by a pair of superimposed horizontal trays that define two air-conducting spaces, one between the lower tray and the bottom shell and the other between the lower and the upper tray; the upper tray includes an insert that supports the baby; the lower tray is about as long as the chamber; the upper tray is shorter but less wide than the chamber; longitudinal air-passing gaps are formed between the lower tray and the bottom shell and communicate with the lower air-conducting space; transverse air-passing gaps are formed between adjacent end walls of the trays and communicate with the upper air-conducting space.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: October 21, 1986
    Assignee: Ameda AG
    Inventors: Christian Beer, Robert Riedweg, Klaus Schlensog
  • Patent number: 4573969
    Abstract: A breast pump for manual operation of the type comprising a receptacle that is put against the breast to surround a teat and has a variable enclosed volume in the manner of a cylinder-and-piston-pump which when operated in contact with a breast causes the milk to be drawn into the receptacle due to the suction generated by an enlargement of the enclosed volume.The tubular part of the hollow piston is tapered such that its upper end has a smaller outer diameter than its lower end that carries an annular lip seal; consequently, the outer cylinder which is manipulated, i.e. moved to-and-fro relative to the hollow piston, can be tilted to some extent without concurrent tilting of the piston and the suction bell that is integrally connected therewith; thus, pump-induced motion of or at the sensitive area of teat and areola is minimized for improved user comfort.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: March 4, 1986
    Assignee: Ameda AG
    Inventors: Klaus Schlensog, Christian Beer, Robert Riedweg