Reservoir Pressurized Or Exhausted By Squeeze Bulb Patents (Class 604/217)
  • Patent number: 10398257
    Abstract: A hot beverage maker is provided with a removable pump for cleaning a brewing needle. The pump fits into a brewing chamber which normally receives a pod of an infusible beverage material. A pod receptacle and a lid pivotally connected to the housing form the brewing chamber. After a brewing cycle or when cleaning of the brewing needle is desired, an interior chamber of the pump is filled with cleaning fluid and the pump inserted into the pod receptacle. When the lid is closed, the brewing needle is inserted into the interior chamber. The lid is closed and released repeatedly to operate the pump. This creates a pumping action of the cleaning fluid through the brewing needle to dislodge a buildup of minerals or residual deposits. The used cleaning fluid and dislodged deposits are discarded after the cleaning operation is completed.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 3, 2019
    Assignee: Sunbeam Products, Inc.
    Inventor: Yao Qin Meng
  • Patent number: 9629966
    Abstract: An internal dry powder delivery system through a working channel of an endoscopic cannula for directly applying the powder form medication to an internal tissue/organ site, includes an elongated tubular delivery channel and a powder supply device for producing pressurized gas mixing with the dry powder for feeding to form a mixture of dry powder and pressurized gas delivering to an internal tissue/organ site through the delivery channel via endoscopic cannula. It ensures a smooth powder release by preventing liquid from accumulation at the tip of the delivery channel and offers physicians a new powder form drug delivery method via endoscope. Also, it offers new minimal invasive application by directly and precisely applying the powder format drug to the internal sites of human gastrointestinal organ via endoscope to achieve hemostasis, anti-inflammation, anti-ulcer and anti-tumor treatment, etc.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: April 25, 2017
    Inventor: Xin Ji
  • Patent number: 8968257
    Abstract: A coded cartridge holder system is disclosed for use with a cartridge assembly (20) containing a fluid and a delivery device (10), where the system has keyed connectors (5, 5?, 6, 6?) to prevent accidental attachment of the wrong fluid delivery device (10). The system comprises a coupling (1) attachable to the dose setting portion (12) of the device (10) and keyed to the proximal end of the cartridge holder (14). The cartridge holder (14) may also contain medical coding (27, 28) to correspond to matching coding (27?, 28?) on the distal end of a cartridge assembly (20).
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: March 3, 2015
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Uwe Dasbach, Steffen Raab, Michael Harms, Udo Stauder, Volker Korger
  • Publication number: 20140276631
    Abstract: An anal irrigation kit provides an improved approach for emptying a bowel by instilling irrigation liquid and stimulating the rectal wall simultaneously. The anal irrigation kit includes an irrigation liquid reservoir, a hand pump, and a soft flow manifold, which can be folded for insertion into a rectum.
    Type: Application
    Filed: October 11, 2012
    Publication date: September 18, 2014
    Inventor: Thomas H. Gilman
  • Patent number: 8721582
    Abstract: An internal dry powder delivery system through a working channel of an endoscopic cannula for directly applying the powder form medication to an internal tissue/organ site, includes an elongated tubular delivery channel and a powder supply device for producing pressurized gas mixing with the dry powder for feeding to form a mixture of dry powder and pressurized gas delivering to an internal tissue/organ site through the delivery channel via endoscopic cannula. It ensures a smooth powder release by preventing liquid from accumulation at the tip of the delivery channel and offers physicians a new powder form drug delivery method via endoscope. Also, it offers new minimal invasive application by directly and precisely applying the powder format drug to the internal sites of human gastrointestinal organ via endoscope to achieve hemostasis, anti-inflammation, anti-ulcer and anti-tumor treatment, etc.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: May 13, 2014
    Inventor: Xin Ji
  • Patent number: 8551053
    Abstract: A receptacle of an elastically flexible plastic includes a dosing chamber (10) with a medium to be discharged. One end of the dosing chamber (10) has a discharge opening (18). The opposite end is connected via a junction point (20) to a compressible receptacle part (22) with a gaseous propelling medium. When compressing the receptacle part (22), the propelling medium forces the medium to be discharged out of the dosing chamber (10) via the discharge opening (18). The junction point (20) between the dosing chamber (10) and the receptacle part (22) is a bottleneck creating a capillary effect independent of the spatial position of the receptacle preventing transfer of the medium of the dosing chamber (10) into the receptacle part (22).
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: October 8, 2013
    Inventor: Bernd Hansen
  • Patent number: 8376972
    Abstract: A wound treatment device comprises a wound surface contacting plug (10) and a cover (24) for covering the wound surface (22) and the plug (10), wherein said plug (10) consists of a flat textile isolating material comprising at least one first surface layer (12), one second surface layer (14) and one intermediate space (18) arranged between said surface layers (12, 14). At least the first surface layer (12) is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space (18) is provided with isolating threads (16) elastically holding the first surface layer (12) and the second surface layer at a certain distance from each other.
    Type: Grant
    Filed: November 25, 2005
    Date of Patent: February 19, 2013
    Inventor: Wilhelm Fleischmann
  • Patent number: 8377029
    Abstract: A drug solution filling plastic ampoule having gas, steam and light ray barrier properties, a drug permeation preventing capability and an absorption/adsorption preventing capability, and a production method for the plastic ampoule. The drug solution filling plastic ampoule includes a container body, a fusion-bonded portion which seals a mouth of the container body, and a wrench-off holder tab connected to the fusion-bonded portion. The ampoule is formed from a parison including two or more layers, at least one of which is a functional layer having at least one characteristic property selected from the group consisting of a gas permeation preventing capability, a steam permeation preventing capability, a light ray permeation preventing capability, a drug permeation preventing capability and a drug absorption/adsorption preventing capability.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: February 19, 2013
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsuyoshi Nagao, Hideshi Okamoto, Masamitsu Izumi, Keiichi Kawakami, Fujio Inoue
  • Patent number: 8366656
    Abstract: A syringe comprises a barrel with a plunger in slidable and sealing engagement therein, and a needle attached to one end of the barrel. The barrel has an aspiration device in the form of manually-operable resilient portions, which can be operated to cause a pressure differential in the barrel, the pressure differential then being used to perform aspiration. The resilient portions are preferably formed by localized reductions of wall thickness in the external surface of the barrel.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: February 5, 2013
    Assignee: Star Syringe Limited
    Inventors: Graham John Madin, Marc Andrew Koska
  • Patent number: 8118780
    Abstract: A hand-held remote for a medical fluid injector includes a syringe and a conduit which may be coupled to a pressure transducer on a control circuit of the injector. Movement of a plunger within a syringe body on the syringe creates a pressure which is sensed by the pressure transducer and the control circuit responds to the sensed pressure by causing fluid to be ejected from, or drawn into, a syringe mounted to the injector. The pressure developed by the remote provides tactile feedback to an operator for improved control over injections.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: February 21, 2012
    Assignee: Liebel-Flarsheim Company LLC
    Inventors: Frank M. Fago, James E. Knipfer, Charles S. Neer
  • Patent number: 8048321
    Abstract: An apparatus that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the apparatus. It also provides for a new method of extracting the buffy coat phase from a whole blood sample. A buoy system that may include a first buoy portion and a second buoy member operably interconnected may be used to form at least three fractions from a sample during a substantially single centrifugation process. Therefore, the separation of various fractions may be substantially quick and efficient.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 1, 2011
    Assignee: Biomet Biologics, LLC
    Inventors: Michael D. Leach, Jennifer E. Woodell-May, Joel C. Higgins, Brandon Miller
  • Patent number: 7819845
    Abstract: A syringe plunger/jacket assembly may comprise a flexible jacket attached to a rigid plunger. The jacket may comprise at least two sealing rings (front and rear) that prevent fluid from leaking out of the rear of the barrel during injection of fluid from the syringe. The rear sealing ring may or may not contact or seal the interior surface of the syringe barrel in an unloaded state. In the loaded state, when force is applied in the direction of the forward discharge end of the syringe, pressure is created on the jacket. This condition causes the rear seal to expand and contact and/or seal the interior surface of the syringe barrel.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: October 26, 2010
    Assignee: Coeur, Inc.
    Inventor: J. Michael Cude
  • Patent number: 7686788
    Abstract: A catheter having a drug delivery unit at the distal end thereof. The drug delivery unit includes an actuator capable of assuming an activated and an inactivated configuration. The drug delivery unit also includes a receptacle capable of accepting a therapeutic agent. The actuator and receptacle are in communication with each other such that the actuator transmits force to the receptacle and the receptacle accepts force from the actuator in an activated configuration of the actuator. Also provided is a method of delivering a therapeutic agent to a target site using the catheter of the present invention.
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: March 30, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Toby Freyman, Maria Palasis, Wendy Naimark, Timothy J. Mickley
  • Publication number: 20080275404
    Abstract: The invention relates to a receptacle comprised of an elastically flexible plastic material, comprising a dosing chamber (10), inside of which a medium to be discharged is located. One end of the dosing chamber (10) has a discharge opening (18), and the opposite end is connected via a junction point (20) to a compressible receptacle part (22) inside of which an, in particular, gaseous propelling medium is located. When compressing the receptacle part (22), the propelling medium forces, at least in part, the medium to be discharged out of the dosing chamber (10) via the discharge opening (18).
    Type: Application
    Filed: July 26, 2005
    Publication date: November 6, 2008
    Inventor: Bernd Hansen
  • Patent number: 7250039
    Abstract: A compression hypodermic syringe is disclosed wherein two leaves are hinged together. One leaf contains a receptacle for a collapsible capsule which contains a pre-measured dose of medication. The second leaf has a structure that acts as a plunger when the second leaf is folded over the first leaf. A double ended hypodermic needle is provided that has one end that pierces a membrane on the collapsible capsule and a second end that is exposed for insertion into a patient when the two leaves are folded together.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: July 31, 2007
    Inventor: Lisa M. Fitzgerald
  • Patent number: 7144385
    Abstract: For safely inserting a catheter into a chest cavity of a child or corpulent patient to be retained therein and for preventing atmospheric air from proceeding into the chest cavity during a removal of a penetrating needle, discharge equipment for medical procedures is provided which equipment includes a connector cap and a storage bottle detachably connectable to each other, a connector to be connected to the catheter retained in the patient, a check valve including an outer periphery covered by a protective cover and being openable only toward a storage bottle side, and a coupling device to the storage bottle mounted on the connector cap. The storage bottle is a hollow container including an inlet port and a discharge port, a detachably connecting device for the connector cap mounted on the inlet port, and a check valve openable only toward an exterior of the storage bottle is mounted on the discharge port.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 5, 2006
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Yoshifumi Matsuura, Tomohiro Isono, Yukihiko Sakaguchi
  • Patent number: 6869419
    Abstract: An ampule having a body portion and a sealed end portion and a sealed delivery portion adapted for use in a delivery syringe system for controllably dispensing a low viscosity material, such as a liquid, gel, or paste. An ampule having sealed rear portions adapted to mate with a plunger of a syringe so as to facilitate controlled dispensing of a low viscosity material. The syringe has a breach positioned to provide controlled flow of the dispensed low viscosity material and facility easy removal from the syringe. Low viscosity materials, such as liquids and gels, are controllably dispensed in a measured unit dose quantity. The present invention has many applications, but is particularly applicable to dispensing low viscosity materials such as used in coatings and not injected parenterally, and is particularly applicable to dental applications.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: March 22, 2005
    Assignee: Centrix, Inc.
    Inventors: William B. Dragan, Gordon Rowe
  • Patent number: 6764470
    Abstract: A device for delivering a beneficial agent within a body cavity such as the ear canal. The device preferably includes a soft resilient casing that can be compressed to fit at least partially within the ear canal. Once inserted in the ear canal, the casing expands to form a seal between a boundary defining the ear canal and the device. The soft casing preferably encapsulates the beneficial agent within a reservoir formed inside the soft casing. As the device is squeezed, the beneficial agent is ejected through a release point. The device then maintains the beneficial agent within the ear canal until the beneficial agent has had time to take effect.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 20, 2004
    Inventor: Roland P. Dimick
  • Patent number: 6712803
    Abstract: A drug dispensing system for substantially preventing addictive use of drugs. The system has multiple dispensers each containing a drug such as nasal spray. The drug in at least one of the dispensers is diluted to a first pre-selected concentration level with a diluent and the drug in at least a second one of the dispensers is diluted to a second lower pre-selected concentration level with a diluent.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: March 30, 2004
    Inventor: Howard Paritsky
  • Patent number: 6689101
    Abstract: An injector device for delivery of liquid from a high pressure, the device comprising a housing, a pressure chamber 2 comprising a pressure barrel 4 for accommodation of at least one piston therein and having a front end opening 6 for ejection of the liquid, the pressure chamber being of sufficient strength to sustain the liquid pressure. The device further comprises a storage chamber 16, separate from the pressure chamber, for the liquid or the liquid precursor components, and a conduit 22 between the pressure chamber and the storage chamber. A pressurizing mechanism 26 in the housing is arranged to apply force, directly or indirectly, on the piston in the pressure barrel to create said liquid pressure.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: February 10, 2004
    Assignee: Pharmacia AB
    Inventors: Birger Hjertman, Jonas Fridholm
  • Patent number: 6645180
    Abstract: Disclosed is a single-use syringe comprising a needle housing, a bore-containing fluid-delivery needle and a volume-containing element. The needle housing has a top surface to which the volume-containing element is attached, a needle attachment side to which the bore-containing needle is attached, and a fluid delivery channel in communication between the top surface and the needle attachment side. The volume-containing element is fluid-tight but for communication with the fluid-delivery and a filling port. Embodiments are disclosed which include vapor-permeable portions which facilitate lyophilization of materials in situ.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 11, 2003
    Inventor: Thomas Hatch
  • Patent number: 6605064
    Abstract: Disclosed is a single-use syringe comprising a needle housing, a bore-containing fluid-delivery needle and a volume-containing element. The needle housing has a top surface to which the volume-containing element is attached, a needle attachment side to which the bore-containing needle is attached, and a fluid delivery channel in communication between the top surface and the needle attachment side. The volume-containing element is fluid-tight but for communication with the fluid-delivery and a filling port. Embodiments are disclosed which include vapor-permeable portions which facilitate lyophilization of materials in situ.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: August 12, 2003
    Inventor: Thomas Hatch
  • Patent number: 6585693
    Abstract: The present invention provides a unitary syringe having a mounted needle surrounded by a sheath having a break-zone. The fluid medicament to be injected is contained within a blister cavity formed between upper and lower polymeric layers. Accidental needle sticks are reduced by optional guard fingers surrounding the needle. These fingers extend past the and bracket the sharpened end of the needle.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 1, 2003
    Inventor: Louis Dischler
  • Publication number: 20020169422
    Abstract: An outlet portion (1) for nasal rinsers which is characterized in that it comprises an outlet end (2), a connection end (3) and a nozzle shaped channel (4), showing a restriction (5) and an expanded outlet (6), in between.
    Type: Application
    Filed: June 4, 2002
    Publication date: November 14, 2002
    Inventors: Peter Ahnblad, Susanne Lagerqvist
  • Publication number: 20020103110
    Abstract: The present invention provides for a system for treating migraine headaches including an administering mechanism for administering a medication composition, a rectal adapting mechanism operatively connected to the administering mechanism for insertion through an anus and into a rectum of a patient, and a medication composition contained within the administering mechanism. The present invention also provides for a medicine suppository including a medication composition having an effective amount of valproate for the treatment of a migraine headache. Furthermore, the present invention provides for a kit including the system of the present invention. Finally, the present invention provides for a method of treatment of a migraine by rectal administration of an effective amount of a medication composition.
    Type: Application
    Filed: January 25, 2002
    Publication date: August 1, 2002
    Inventor: A. Robert Spitzer
  • Publication number: 20020010429
    Abstract: A dose dispensing device such as a medicine dropper is improved by putting a dosing scales such as a body weight scale directly on the dose dispensing device. This improved device is used to simultaneously calculate and measure an exact dose of liquid medicine, based on the body weight of the patient.
    Type: Application
    Filed: May 17, 2001
    Publication date: January 24, 2002
    Inventor: Jack Raymond Grogan
  • Publication number: 20020010430
    Abstract: An ampule having a body portion and a sealed end portion and a sealed delivery portion adapted for use in a delivery syringe system for controllably dispensing a low viscosity material, such as a liquid, gel, or paste. An ampule having sealed rear portions adapted to mate with a plunger of a syringe so as to facilitate controlled dispensing of a low viscosity material. The syringe has a breach positioned to provide controlled flow of the dispensed low viscosity material and facility easy removal from the syringe. Low viscosity materials, such as liquids and gels, are controllably dispensed in a measured unit dose quantity. The present invention has many applications, but is particularly applicable to dispensing low viscosity materials such as used in coatings and not injected parenterally, and is particularly applicable to dental applications.
    Type: Application
    Filed: October 1, 2001
    Publication date: January 24, 2002
    Inventors: William B. Dragan, Gordon Rowe
  • Patent number: 6277100
    Abstract: A catheter guide wire introducing device for aspiration of a body part and insertion of a guide wire into the body part is provided. The catheter guide wire introducing device includes a flexible bulb. A fitting is located on the first end of the bulb. The fitting includes an internal chamber and first and second axially aligned passageways in fluid communication with the chamber. A third passageway is provided in fluid communication between the chamber and the interior of the cavity of the flexible bulb. An introducer needle having first and second ends and a lumen is provided. The first end of the needle is connected to the fitting such that the first passageway is in fluid communication with the lumen. A conduit having first and second ends and a passageway extending therethrough is also provided. The conduit is axially aligned with the introducer needle. The first end of the conduit is connected to the fitting such that the conduit passageway is in fluid communication with the second passageway.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: August 21, 2001
    Assignee: Medical Components, Inc.
    Inventors: J. Daniel Raulerson, Timothy M. Schweikert
  • Patent number: 6120478
    Abstract: There is disclosed herein a single use syringe (1) having a container section (2), a valve section (4) and a hollow needle (4a). The valve section (4) contains a one-way valve (40) which allows fluid to flow in only one direction through the valve section (4). The single use syringe (1) may also be provided with locking means to prevent the separation of the container section (2) from the valve section (4). There is also disclosed herein packaging (16, 17) and a carry case (10, 11) in which to store and transport the single use syringe (1).
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: September 19, 2000
    Inventors: Ian Marshall Moore, Colin Campbell Marshall Moore
  • Patent number: 5873860
    Abstract: The invention concerns a complete injection device which is ready for immediate use and whose injection member charged with an active substance solution and cannula form an inseparable unit. The invention also concerns a blister pack comprising at least two units, of which the basic unit is a complete injection device ready for immediate use. The advantages of the injection device are that it is a disposable syringe charged with active substance solution available for immediate use without the need of additional manipulation, remains sterile until the point immediately before use and is particularly suitable for small dosages.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: February 23, 1999
    Assignee: Schwarz Pharma AG
    Inventor: Ulrich Kahlert
  • Patent number: 5848993
    Abstract: A bulb syringe providing for uniform, hence repeatable, deflation/inflation of the bulb and a tactile-discernible limit of deflation of the bulb and resultant control over the consistency of degree of suction produced with the deflated bulb is allowed to inflate in response to its resiliency and memory. The bulb syringe includes a bottom portion having a spout and a top portion whose resiliency is enhanced by a plurality of ribs. The top and bottom portions are provided with equatorial shoulders which are joined and which establish a tactile-discernible limit of deflation of the top portion. In one embodiment, the bottom portion is provided with a pair of lugs on the outer surface therefor for receipt of the palmar surfaces of two adjacent fingers of a user. Preferably, the syringe is transparent or at least sufficiently translucent as permits the visual inspection of any fluid contained therein.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: December 15, 1998
    Assignee: DeRoyal Industries, Inc.
    Inventors: Benito Li Tanhehco, Steven Edward Saad, Brian Jay Donahue, Brian Jay Mitchell
  • Patent number: 5817066
    Abstract: The invention is an improved bulb-type irrigation syringe having an open end that is of a funnel shaped construction and having a recloseable lid that fits onto the top of the funnel shaped end of the syringe and down inside the top barrel portion of the syringe. The top of the syringe is modified by making it larger so as to resemble a funnel shaped construction. The lid is able to frictionally fit inside the barrel of the syringe creating an airtight frictional seal and has another aperture in order to hold a squeeze bulb in airtight frictional connection as well. A squeeze bulb is normally attached to the top of the syringe and in this invention may be closed inside the barrel of the syringe by simply closing the lid on top of the funnel shaped syringe.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: October 6, 1998
    Inventor: Thomas Leonard Goforth
  • Patent number: 5775546
    Abstract: A dispensing bulb having a squeezable body portion and integral squeezable neck portion having a pair of diametrically disposed vent holes. An adaptor is mounted in the neck portion and is provided with a cylindrical portion extending into the bulb neck portion beyond the vent holes and spaced radially inwardly therefrom. A dispensing tube is connected to the adaptor and communicates with the interior of the bulb. The neck portion of the bulb is squeezed to draw liquid into the tube, and the cylindrical portion of the adaptor limits the squeezing of the neck portion to prevent liquid from being drawn through the tube into the body portion of the bulb.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: July 7, 1998
    Assignee: Comar, Inc.
    Inventor: John D. Buehler
  • Patent number: 5725509
    Abstract: An air introduction system for a medical needle assembly is provided and includes a flexible bladder, and a male luer assembly with an air valve which is biased to allow air to enter the air introduction system but not to exit. The air introduction system is coupled to a needle assembly which is to be introduced into the epidural space. As the needle traverses the tissue layers overlying the epidural space, and the practitioner applies pressure to the bladder, the practitioner experiences resistance to the forcing of air through the needle assembly. If air is lost from the bladder, the bladder may be refilled by releasing the pressure on it and allowing outside air to enter via the air valve. Once the epidural space is penetrated, air is quickly forced from the bladder through the needle assembly and the practitioner can feel a sudden drop in pressure.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: March 10, 1998
    Assignee: Symbiosis Corporation
    Inventors: Frank A. Scarfone, David Turkel, David P. Gordon
  • Patent number: 5701910
    Abstract: An aspiration needle apparatus for collecting cell samples by withdrawing aspirate from tissue in a living body. An aspiration needle is provided which has a flow passage extending from its proximal extremity to its distal extremity. The proximal extremity has a hub end a cell collection chamber therein in communication with the flow passage. A vacuum container is provided which has an enclosed evacuated space evacuated to a subambient pressure to provide a predetermined volume of evacuated space devoid of a solid or a liquid and devoted solely to providing the desired vacuum. The vacuum container is sealed by a penetrable diaphragm providing access to the evacuated space. An adapter mounted on the hub and making a fluid-tight connection therewith is formed to receive the vacuum container. The adapter includes a needle having a flow passage in communication with the flow passage in the aspiration needle. A spring is carried by the adapter.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: December 30, 1997
    Assignee: Advanced Cytometric Inc.
    Inventors: Trevor J. Powles, Mir A. Imran
  • Patent number: 5620423
    Abstract: A syringe having a stopper configured at least partly as a membrane surface. The stopper is prestressed opposite to the direction of insertion of a rotary piston so that it assumes a stable position at rest. After displacement by the rotary piston, the membrane surface reversibly returns to this stable position after it is depressurized.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: April 15, 1997
    Assignee: Heraeus Kulzer GmbH
    Inventors: Rudolf Eykmann, Joachim Fritze, Birgit Uhrig, Dieter Schodel
  • Patent number: 5538506
    Abstract: A syringe which has been prefilled to include a prescribed liquid and also a gas. The syringe includes a reservoir, a chamber which is in fluid communication with the reservoir and an outlet which is interposed between the chamber and the reservoir. Severing the chamber from the reservoir at the outlet will provide a syringe that includes a reservoir and an outlet. Prior to severing the chamber from the reservoir, the syringe may first be oriented such that all gas is directed into the chamber so that the syringe's reservoir will be completely filled with non-compressible fluid such as the medicating liquid.
    Type: Grant
    Filed: November 3, 1993
    Date of Patent: July 23, 1996
    Inventors: Barry Farris, Bernhard Kreten
  • Patent number: 5505712
    Abstract: A fluid applicator includes a suction bulb, a screw cap, a finger support, an inner shaft, and an outer shaft that ends in a spatulate dispenser. The suction bulb connects with the thin tubular inner shaft, which extends throughout the applicator to terminate at a release opening in the spatulate dispenser. The suction bulb, which is preferably made of rubber or flexible plastic, has a toroidal lower lip that hooks over a complementary toroidal projection of the screw cap. The tubular inner shaft has an upper lip that projects horizontally into contact with the inside of the suction bulb and that rests on the toroidal projection of the screw cap. The screw cap, which is innerly threaded, is positioned immediately above and integral with the oblong winged member that provides finger support for a user. Also integral with the screw cap and finger supports is the outer shaft, which shields the inner tubular shaft and is configured mainly as a cylinder.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: April 9, 1996
    Inventor: Ray M. McMillian
  • Patent number: 5400923
    Abstract: A pump for discharging the contents of a sealed container, such as a test tube, is connected to a body member which includes an inlet path and a discharge path with a delivery tube in the discharge path. A predetermined clearance is provided between the exterior of the delivery tube and the interior of the discharge path, the clearance providing venting, or blow-by, such that temperature changes do not cause accidental discharge of the contents of the container, while still maintaining sufficient resistance to venting for permitting pressurizing the interior of the test tube with the pump for accurately controlling the discharge of the test tube contents. A second or supplemental vent is provided in the pump.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: March 28, 1995
    Assignee: Helena Laboratories Corporation
    Inventors: Tipton L. Golias, Robert J. Sarrine, Joseph H. Golias, Ronald A. Mayes
  • Patent number: 5370626
    Abstract: A hollow, molded, disposable, plastic syringe is provided with an air trap chamber in fluid communication with a collapsible container portion. An umbilical passage connects the container to the chamber. With the air trap chamber extending upwardly from the container portion, air is trapped in the chamber. The chamber is then removed by sealing the umbilical passage shut and severing the passage between the seal and the chamber. The syringe is then useable without any air contained in the container. The container is shaped to facilitate ejection of an accurate dose without injecting too little or too much of the contained liquid.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: December 6, 1994
    Inventor: Barry Farris
  • Patent number: 5370631
    Abstract: An apparatus for de-airing the heart comprises a clear, resilient bulb fixedly secured to an aspirating needle. The bulb includes a valve which permits air, upon squeezing the bulb, to be discharged therefrom. The aspirating needle includes an axial passage which is closed at the distal end of the needle. One or more longitudinal slots formed in the wall of the needle provide access to the axial passage of the needle for aspirating air from the heart.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: December 6, 1994
    Inventor: Being-Tang Zhong
  • Patent number: 5364358
    Abstract: A device for controlling the inflation of a balloon catheter includes a variable volume chamber and an actuator to expel air from the chamber. Movement of the actuator is inhibited by a releasable latch to prevent unintentional inflation of the catheter. An adjustable abutment limits movement of the actuator after the latch is released to prevent overinflation of the balloon.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: November 15, 1994
    Assignee: Cardio-Search Limited
    Inventors: Geoffrey A. Hewitt, Andrew K. Rath, Harvey K. McQuarrie
  • Patent number: 5290257
    Abstract: An apparatus for de-airing the heart comprises a clear, resilient bulb fixedly secured to an aspirating needle. The bulb includes a valve which permits air, upon squeezing the bulb, to be discharged therefrom. The aspirating needle includes an axial passage which is closed at the distal end of the needle. One or more longitudinal slots formed in the wall of the needle provide access to the axial passage of the needle for aspirating air from the heart.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: March 1, 1994
    Inventor: Being-Tang Zhong
  • Patent number: 5154702
    Abstract: A variable dosage dropper system improves upon the conventional dropper assembly (container, cap, pipette, bulb) by providing an annular overcap housing which completely encloses the cap and bulb to provide tamper resistant protection and has a locking collar at its lower end to secure the cap within the housing. A plunger slidably, rotatably, and sealingly mates with the housing. The plunger contacts and compresses the bulb when pushed downward toward the housing a predetermined distance corresponding to various dosages and allows the bulb to return to its decompressed position when released. The system is also adapted to resist undesired opening of the container by children.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: October 13, 1992
    Assignee: Wheaton Industries
    Inventor: Mark L. Foyil
  • Patent number: 5114033
    Abstract: An apparatus for discharging the contents of a sealed container, such as a test tube, includes an inlet path and a discharge path with a delivery tube in the discharge path. A predetermined clearance is provided between the exterior of the delivery tube and the interior of the discharge path, the clearance providing venting, or blow-by, such that temperature changes do not cause accidental discharge of the contents of the container, while still maintaining sufficient resistance to venting for permitting pressurizing the interior of the test tube for accurately controlling the discharge of the test tube contents.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: May 19, 1992
    Assignee: Helena Laboratories Corporation
    Inventors: Tipton L. Golias, Robert J. Sarrine, Joseph H. Golias
  • Patent number: 5061239
    Abstract: A system for the air reduction of intussusception in infants and children. The system comprises a main tube terminating of its distal end in an enema tip. The proximal end of the main tube is connected to an in-line filter which stops reflux of aerosol and liquid/solid contaminants therebeyond. The filter is connected to a three-way, lever-actuated stopcock which, in turn, is connected to a hand-operated insufflator bulb. The air reduction system is provided with an aneroid gauge. The guage and bulb may constitute a reusable, integral assembly, the remainder of the system being disposable. The entire system may be disposable with a disposable gauge connected ahead of the in-line filter. A reusable gauge may be remotely located and connected to the air reduction system via a branch tube and a T-fitting located between the filter and the three-way valve, all of the system save the remote gauge being disposable.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: October 29, 1991
    Inventor: William E. Shiels
  • Patent number: 4955871
    Abstract: A single-use disposable syringe. In the syringe, a reservoir is formed of two sheets of thermoplastic material having expanded central portions that form a pair of convex domes. Both of the domes are compressible, and a connecting member spaces apart the domes. In response to complete compression of both of the central portions together, the reservoir substantially collapses and each of the domes becomes concave to prevent the reservoir from being reformed and to prevent reuse of the syringe. After partial compression of both of the central portions together and partial collapse of the reservoir, the central portions expand to reform the reservoir and draw fluid into the reservoir, thereby aspirating a hypodermic needle.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: September 11, 1990
    Assignee: PATH
    Inventor: Ronny D. Thomas
  • Patent number: 4883473
    Abstract: A single use, single dose injection administering device including a drug or vaccine containing body and a needle wherein the sidewalls have memory causing at least one sidewall to collapse into the other during the administration of the vaccine.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: November 28, 1989
    Assignee: Path
    Inventor: Ronny D. Thomas
  • Patent number: 4693709
    Abstract: An irrigation syringe is provided which includes a barrel having an axially extending annular groove open at the proximal end for receiving the connector portion of a resilient compressible syringe bulb in tight frictional fitting relation. The syringe barrel is adapted to receive, instead of the bulb, a plunger having a piston that may be inserted into the barrel to provide a piston-type syringe so that the barrel can be used either with a syringe bulb or a syringe plunger. The inner wall of the groove has a plurality of slots so that if the syringe barrel is employed as a funnel, liquid will flow from the groove into the barrel.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: September 15, 1987
    Assignee: Sherwood Medical Company
    Inventors: Robert D. George, Robert D. Banning
  • Patent number: RE37734
    Abstract: A dispensing bulb having a squeezable body portion and integral squeezable neck portion having a pair of diametrically disposed vent holes. An adaptor is mounted in the neck portion and is provided with a cylindrical portion extending into the bulb neck portion beyond the vent holes and spaced radially inwardly therefrom. A dispensing tube is connected to the adaptor and communicates with the interior of the bulb. The neck portion of the bulb is squeezed to draw liquid into the tube, and the cylindrical portion of the adaptor limits the squeezing of the neck portion to prevent liquid from being drawn through the tube into the body portion of the bulb.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: June 11, 2002
    Assignee: Comar, Inc.
    Inventor: John D. Buehler