Bellows-type Reservoir Patents (Class 604/216)
  • Patent number: 5024653
    Abstract: An aspirator for removing a body liquid from a body cavity comprising a cylindrical receptacle having a top wall comprising a flap valve, and an aspirating tube, one end of said aspirating tube being connected with the upper part of the receptacle and the other end having such a shape that it can be inserted into the body cavity, said receptacle being partly surrounded by a cylindrical cap-shaped member having a top wall including a flap valve, the cap-shaped member having such a shape that an axial displacement of the cap-shaped member relative to the receptacle produces a vacuum in the space between the cap-shaped member and the receptacle.The aspirator is more compact and of a simpler construction than the corresponding prior art aspirators.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: June 18, 1991
    Assignee: Testa-Laboratorium A/S
    Inventor: Ole B. Kohnke
  • Patent number: 5000739
    Abstract: A programmable pump with three separate components: a driver, a reservoir and a tubing set connector. The driver provides an electromechanical assembly causing fluid to flow from the reservoir. The driver can be programmed for varying flow rates and alternating on/off delivery cycles through the control of switches externalized on the driver face. The reservoir is designed as a separate component. The driven side of the reservoir is the bottom. The top of the reservoir includes a port, and the bottom includes a septum for filling by a needle. The tubing set connector subsequently mounts into the port connector of the reservoir. The tubing set connector provides the interface to any standard luer-type tubing set which then connects to a needle for infusion. The circuitry is hardware logic programmable circuitry.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: March 19, 1991
    Assignee: Pinewood Medical, Inc.
    Inventors: Andrzej Kulisz, Robert Kendig, Jeffrey Williams
  • Patent number: 4966312
    Abstract: A disposable oral liquid measure/dispenser for administering measured, pre-packaged dosages of liquid medication or food to human or animal patients comprises a one-piece structure made of a flexible thermoplastic, preferably by blow-molding. The container/dispenser has an upper cylindrical neck section for filling with liquid and sealable with a tamper-evident seal. A flexible bellows section extending downwards from the neck section joins a central fluid reservoir section, which is in turn joined at its lower end to a dispensing tube shaped like an inverted U-tube. The outer, outlet leg of the dispensing tube has a cap which is serverable by a scissors when it is desired to dispense the contents. Pushing downward on the upper surface of the sealing cap collapses the bellows, pressurizing the fluid storage reservoir section of the container. This in turn forces fluid upwards into the inner, inlet leg of the dispenser tube, and out the outlet leg into a patient's mouth.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: October 30, 1990
    Inventor: Donald A. Waring
  • Patent number: 4950247
    Abstract: An aspirator including a container having two separate chambers with one chamber having a suction tube connected to a closed bellows within the chamber for creating a vacuum, and the second chamber having a patient tube for insertion into the body cavity of a patient for sucking removal of mucus and other excess bodily fluids by the vacuum, with the two containers being connected for gaseous communication. The aspirator further includes an injection port by which mucus may be removed from the container and a pressure relief valve to permit air to escape from the container as the flexible bellows expands to its equilibrium state. The suction tube further includes a moisture trap to occlude gaseous flow to the mouthpiece in the event moisture enters the suction system. The apparatus further includes a clip to occlude fluid flow through the patient tube when the operation is completed. The patient tube may include a Yankauer tip.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: August 21, 1990
    Assignee: Rosenblatt/IMA Invention Enterprises
    Inventor: Richard Rosenblatt
  • Patent number: 4775366
    Abstract: An aspirator includes a closed container having a suction tube connected to a closed bellows within the container for creating a vacuum, and a patient tube for insertion into the body cavity of a patient for sucking removal of mucus and other excess bodily fluids by the vacuum. An upstanding partition inside the container creates a fluid collection chamber separate from the vacuum chamber, but in gaseous communication therewith. A valve system insures only vacuum pressure in the patient tube.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: October 4, 1988
    Inventor: Richard Rosenblatt
  • Patent number: 4753638
    Abstract: A device for use in surgical procedures formed of a concertina cartridge (1) of a resilient material. The cartridge (1) has a nozzle (5), the throat of which is designed to receive by snap-click action, a projection (9) formed internally of the chamber (1), to hold the cartridge in a collapsed, but resiliently releasable, state as it is compressed to that state under concertina action. The device has applicability to surgical procedures such as blood collection, drug infusion, and balloon catheter inflation while eliminating the dangers of bacterial infection always present when performing such procedures using devices and systems of the prior art.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: June 28, 1988
    Assignee: Clinical Product Development, Ltd.
    Inventor: Joseph L. Peters
  • Patent number: 4704104
    Abstract: A disposable tube includes two compartments separated by a breakable partition. One of the compartments initially contains one element of a medicament, the other compartment initially contains a second element of the medicament. The first compartment, includes a bellows, maintained compressed in its initial condition. The partition is breakable whereby the first and second elements are mixed together. The bellows is expandable from its initial condition whereby the second element is drawn into the first compartment for mixing the first and second elements together. A hollow tip permits evacuating the interior of the first and second compartments for administration of the mixture.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: November 3, 1987
    Inventor: John F. Christensen
  • Patent number: 4664652
    Abstract: A wound evacuator comprises a pair of walls which are pushed apart by springs to generate suction in a cavity. A strap coupled to one of the walls includes a plug to close an outlet, a slot cooperating with a peg on the one wall to retain the strap adjacent the one wall and a tab to prevent contact by an individual with the plug upon removal and reinsertion of the plug in the outlet.
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: May 12, 1987
    Assignee: Snyder Laboratories, Inc.
    Inventor: Eugene E. Weilbacher
  • Patent number: 4642088
    Abstract: In apparatus for receiving and reinfusing a patient's own blood, a rigid container encloses a readily deformable inner container, blood being drawn into the readily deformable container by suction and being displaced therefrom by pressure applied between the outer container and the inner container, for pressure reinfusion. Alternatively, the apparatus has a concertina-like container which is held in its expanded condition by a support structure during the blood-intake suction phase, the blood being displaced from the container back into the patient by compression of the container. In another alternative form, the container is a concertina-like container with a high degree of resiliency adapted to expand it into an expanded condition, the container drawing blood from the patient by being compressed before being connected to the patient and then sucking the blood into the container by expansion under the effect of the resiliency.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: February 10, 1987
    Assignee: Solco Basel AG
    Inventor: Mary Gunter
  • Patent number: 4386607
    Abstract: An enema administering apparatus insertable into the rectum for delivery of a contrast medium to internal portions of a patient's anatomy includes an enema tube joined to an enema tip wherein the enema tube and enema tip have a common contrast medium passageway extending therethrough and an air passageway which is exterior of the contrast medium passageway and is able to be coupled to a source of air for double contrast studies. The air passageway may be a passageway disposed within the enema tube and enema tip construction or may be a separate tubing member joined therewith in a suitable arrangement to introduce air for the double contrast studies once the barium has been evacuated from the patient. Air introduction means and contrast medium introduction means are provided by various arrangements suitable for use with the main enema administering apparatus concept disclosed.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: June 7, 1983
    Inventor: Roscoe E. Miller