Lacteal Extractors (e.g., Breast Pump, Etc.) Patents (Class 604/74)
  • Patent number: 4740196
    Abstract: A nursing apparatus is utilized for stimulating lactation in the female human breast. A breast receiving opening permits the positioning of the apparatus over the female breast, and means for pressurizing and depressurizing an attached chamber then operates to provide a suction action. Additional stimulation is provided by an electrically powered vibrator, while the breast receiving portion includes a chamber which may be filled with warm water to thus simulate the temperature of an infant's mouth.
    Type: Grant
    Filed: July 24, 1986
    Date of Patent: April 26, 1988
    Inventor: Margaret D. Powell
  • Patent number: 4680028
    Abstract: A breast receptor for a breast pump having means for creating a vacuum within the breast receptor in which the wall thicknesses of the flexed portions of the receptor engaging the nipple and areola are reduced in order to produce optimum lactating conditions, including optimum responsiveness to the external touch stimulus, and which will most nearly simulate the mouth of a suckling infant.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: July 14, 1987
    Assignee: Lact-Assist, Incorporated
    Inventor: Herbert H. Stuart
  • 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: 4583970
    Abstract: A milk suction device consisting of a funnel and a piston pump connected thereto which can be operated easily as a hand-operated pump or as a motor driven pump. A hollow piston rod is constructed as an outwardly guided aeration duct and has a return valve as its opening located in the suction space of a cylinder of the pump, which return valve is closed during the suction stroke of the piston pump and is constructed as an aeration valve. A ventilation valve is arranged in a front face of the pump cylinder opposite the piston rod and in order to connect a motor driven pump, it is only necessary to slide its tube onto the free end of the piston rod.
    Type: Grant
    Filed: May 23, 1985
    Date of Patent: April 22, 1986
    Assignee: Kirchner & Wilhelm
    Inventor: Hansjorg Kirchner
  • 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