Patents Examined by V. Alexander
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Patent number: 5630800Abstract: The invention relates to an injection syringe for mixing and applying injection substances having a syringe cylinder and a plunger displaceable therein. The plunger has a stopper at its distal end tightly engaged against the inner surface of the cylinder to form an injection volume in the syringe cylinder. A mixing plunger is displaceable in longitudinal direction and guided through the plunger. The mixing plunger projects from the stopper at its proximal end and, at its distal end, has a mixing piston with at least one opening, passing through the surface of the piston. Injection substances can pass through the one opening when the mixing piston is displaced in the injection volume. An effective thorough mixing of the injection substances takes place through to-and-fro movement of the mixing piston in the injection volume.Type: GrantFiled: October 28, 1994Date of Patent: May 20, 1997Assignee: Ferring Arzneimettel GmbHInventors: Norbert Blank, Joachim Zwick
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Patent number: 5630797Abstract: An everting catheter system comprising an elongated outer tubular body having an outer body lumen and an opening leading from the outer body lumen, an elongated inner tubular body movable longitudinally in the outer body lumen and having an inner body lumen and an everting element coupled to the outer body and the inner body so that with movement of the inner body longitudinally in the outer body lumen the everting element can be everted and inverted. The system also includes an elongated instrument, such as a transfer catheter, movable longitudinally in the inner body lumen relative to the inner body. A coupling releasably couples the instrument to the outer body in a substantially fixed longitudinal position with respect to the outer body.Type: GrantFiled: January 17, 1995Date of Patent: May 20, 1997Assignee: Imagyn Medical, Inc.Inventors: Klaus Diedrich, Otmar Bauer, Guy R. Lowery, Steven R. Bacich, Hien V. Nguyen
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Patent number: 5624402Abstract: A tip cap is provided for positive sealing engagement with the tip of a syringe barrel. The tip cap includes an inner cap formed from an elastomeric material dimensioned for sealing engagement with the tip of the syringe barrel. The tip cap further includes an outer cap engaged with the inner cap to limit or prevent both axial movement and rotational movement therebetween. The outer cap includes an array of threads for threaded engagement with a luer collar. The luer collar may be a separate component mountable to a syringe barrel or an integral part of the syringe barrel.Type: GrantFiled: December 12, 1994Date of Patent: April 29, 1997Assignee: Becton, Dickinson and CompanyInventor: Claude Imbert
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Patent number: 5624404Abstract: The hand held phlebotomy protection device of this invention is used for safe transfer of blood from a syringe container to a plurality of test tubes held in the device by gripping the resilient handle of the device. The device is usable for any body fluid being transferred to a test tube from a syringe. The device has a shield disk with a groove and a lip to receive and stop a misguided needle before it has an opportunity to reach the hand of a user holding the device. The resilient handle has a resilient handle wall that also protects the user from a needlestick. The handle is gripped to deform the cavity cross-section holding the test tubes so the needle can be safely withdrawn to complete a safe transfer of body fluid from the syringe to a test tube.Type: GrantFiled: June 29, 1995Date of Patent: April 29, 1997Inventor: Mitchell E. Fisler
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Patent number: 5624407Abstract: The present invention is a device for the administration, in humans and animals of therapeutical or diagnostic fluids, with the device already containing the fluid for injection, ready for use, eliminating the need for glass vials, ampules and conventional syringes. The device is constituted by a plastic, flexible, neutral non-reacting pressure resistant, internally coated recipient, with a conical or cylindrical shape in an upper view, oval in transversal cut-off, containing at its tapered portion a heat sealed terminal with a fitting connection, tubular section, wing and reinforced by a pressure ring. For low injection volumes, the recipient is placed between plates, with a scale portion and injected volume indicator. For drip infusion, the recipient is hung up, and is equipped with a luer-lock terminal, a flow control valve, dropping chamber, tubing, needle, and air filter.Type: GrantFiled: February 2, 1995Date of Patent: April 29, 1997Inventor: Jorge A. R. Claro
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Patent number: 5624406Abstract: Syringe consisting of a body in which is disposed a piston (2) of the kind including at least two racks (53, 54) fitting onto the body and at least one lug carried by the piston (2), each of the racks being capable of being shifted in a single direction in relation to a lug. According to the invention, the syringe includes two lugs (63, 64) carried by a yoke (6) which straddles the piston (2), and is rotatably movable about the piston's axis. The lugs (63, 64) are driven into translation by the piston (2) while rotating freely in relation to the latter.Type: GrantFiled: July 28, 1995Date of Patent: April 29, 1997Assignee: S.C.E.R. Securingue (Society Civile)Inventor: Joseph Labouze
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Patent number: 5624408Abstract: The invention relates to a syringe (1) which comprises a rod (5) mounted for reciprocating movement in relation to a container (8), wherein one end of the rod has the form of a needle (3) or is able to coact with a needle. The syringe further comprises a piston (4) and coupling member (6) which connect and disconnect the piston to and from the rod. The coupling member assumes a connecting state when the piston is drawn by the rod from a position proximate to the needle to a position in which it is distanced therefrom, and are brought to a disconnecting or disconnected state when the piston is pressed by the rod towards the needle. The coupling member comprises support and/or slide surfaces (5k', 5k) arranged on that part of the rod which is proximal to the needle, and opposing support and/or slide surfaces (4k', 4k) on the piston.Type: GrantFiled: May 9, 1995Date of Patent: April 29, 1997Assignee: Dille Safe ABInventor: Nils G. Helldin
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Patent number: 5620425Abstract: A novel method for the preparation of a pre-filled plastic syringe, and preferably the preparation of a plastic syringe pre-filled with a diagnostic contrast agent, wherein said syringe comprises as components a barrel, a tip seal capable of sealing the nozzle of the barrel and a piston capable of sliding in the barrel and sealing the open end of the barrel opposite the nozzle, comprising the steps of (a) providing at least one component of said syringe which is molded under conditions which are substantially free of pyrogens and viable and non-viable particulates; and (b) filling and assembling said syringe.Type: GrantFiled: November 3, 1993Date of Patent: April 15, 1997Assignee: Bracco International B.V.Inventors: Gayle Heffernan, Allen Welsher
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Patent number: 5620423Abstract: 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: GrantFiled: September 23, 1994Date of Patent: April 15, 1997Assignee: Heraeus Kulzer GmbHInventors: Rudolf Eykmann, Joachim Fritze, Birgit Uhrig, Dieter Schodel
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Patent number: 5616132Abstract: This invention relates to a portable medicant injection device having a diaphragm mounted within its housing and a hypodermic needle that moves in response to the movement of the diaphragm when pressurized gas is released into the housing.Type: GrantFiled: June 12, 1995Date of Patent: April 1, 1997Assignee: Subot, Inc.Inventor: Duncan Newman
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Patent number: 5616133Abstract: A special epidural catheter syringe, epidural catheter connector, and continuous epidural tubing connector are provided to provide mechanical lockouts to prevent epidural anesthetic from being injected intravenously and to prevent medications intended for intravenous use from being injected into the epidural catheter.Type: GrantFiled: October 23, 1995Date of Patent: April 1, 1997Inventor: Juan M. Cardenas
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Patent number: 5611785Abstract: A luer needle unit and an injector effectively prevent a user's fingers from being hurt when a disposable needle is separated from the luer needle after use, while realizing simple and positive attachment of the luer needle to a supporting cap. Guide protrusions and guide recesses are provided between the luer needle and the supporting cap to prevent the rotation thereof. Guiding projecting portions are formed in the supporting cap to guide a needle part of the luer needle in the axial direction.Type: GrantFiled: December 21, 1995Date of Patent: March 18, 1997Assignee: Nihon Medi-Physics Co., Ltd.Inventors: Yutaka Mito, Hitoshi Katayama, Hisao Tobiki
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Patent number: 5611781Abstract: A needle tip protecting device is provided for catheters having an insertion needle. The device is small enough to be stored at the base of the catheter needle prior to and during use. After use it may be slip to cover the needle tip where it automatically self-attaches and becomes non-removable. Various embodiments of mechanisms to achieve this effect are described.Type: GrantFiled: July 11, 1994Date of Patent: March 18, 1997Inventors: Richard C. Sircom, Youssef M. Youssef, Robert S. Solomon
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Patent number: 5611786Abstract: A fastening mechanism for a needle system with the liquid system being a cartridge ampoule (4) and with a needle holder (3). The needle holder (3) is snapped onto the cartridge ampoule (4) or a cartridge ampoule holder containing the cartridge ampoule (4) by means of a snap-in closure means. The fastening mechanism of the invention allows sanitary application of injected medicines.Type: GrantFiled: February 27, 1995Date of Patent: March 18, 1997Assignee: Disetronic AGInventors: Fritz Kirchhofer, Willy Michel
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Patent number: 5609590Abstract: An osmotic bursting device for dispensing a beneficial agent to an aqueous environment. The device comprises a beneficial agent and osmagent surrounded at least in part by a semipermeable membrane. Alternatively the beneficial agent may also function as the osmagent. The semipermeable membrane is permeable to water and substantially impermeable to the beneficial agent and osmagent. A trigger means is attached to the semipermeable membrane (e.g., joins two capsule halves). The trigger means is activated by a pH of from 3 to 9 and triggers the eventual, but sudden, delivery of the beneficial agent. These devices enable the pH-triggered release of the beneficial agent core as a bolus by osmotic bursting.Type: GrantFiled: October 19, 1994Date of Patent: March 11, 1997Assignee: Pfizer Inc.Inventors: Scott M. Herbig, Kelly L. Smith
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Patent number: 5609580Abstract: Combination plungerless syringe and ejector for applying force to the bellows portion of the syringe to eject liquid received by the syringe through the cannula portion of the syringe; the injector includes a receptacle generally complementary in shape to and for releasably receiving at least the bellows portion of the syringe. Injector for injecting liquid from a plungerless syringe which includes a cannula portion and a bellows portion, the injector includes a receptacle generally complementary in shape to and for receiving at least the bellows portion of the syringe.Type: GrantFiled: July 14, 1995Date of Patent: March 11, 1997Assignee: Vital Signs, Inc.Inventors: Edward J. Kwiatkowski, David G. Swaim
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Patent number: 5607402Abstract: A safety needle holder (2) includes a tubular housing (4) as well as a double-ended cannula (16) mounted within the housing (4) for slidably moving between an extended distal position, wherein the cannula (16) projects from the housing (4) and is exposed, e.g., for drawing blood, and a retracted proximal position, wherein the cannula (16) is safely located within the housing (4). An intermediate, pre-assembled position is provided between said distal and proximal positions, wherein the cannula (16) is located during assembly of the needle holder (2).Type: GrantFiled: September 19, 1994Date of Patent: March 4, 1997Assignee: Becton Dickinson and CompanyInventors: Christopher Dufresne, Patrice Mousset
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Patent number: 5607401Abstract: This invention relates to augmented polymeric hypodermic needles and lancets. The needles and lancets are stiffened by augmenting means so that they are able to pierce the skin. The devices cost less to manufacture and are safer to use than present metal hypodermic devices. They make possible new types of ampules, phlebotomy devices and intravenous catheters. Most of the models are completely burnable. This invention makes possible safe, easy to use, low cost, disposable hypodermic devices for injection, blood withdrawal and testing.Type: GrantFiled: March 10, 1995Date of Patent: March 4, 1997Inventor: Bruce H. Humphrey
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Patent number: 5605542Abstract: A prefilled syringe is capable of separate storage of different substances before use. It includes a tubular body having an injection needle at one end and a plunger at the other end, and a partition axially slidable in the tubular body. The partition includes a front part and a rear part independent of each other, and as a whole divides the interior space of the tubular body into a front compartment and a rear compartment in a sealing manner for storing mutually different substances. A bypass is disposed generally between the front and rear compartments to introduce the substance in the rear compartment into the front compartment when the partition is slid under pressure provided by the plunger to be adjacent to the bypass to thereby mix the substances immediately prior to injection.Type: GrantFiled: November 14, 1995Date of Patent: February 25, 1997Assignee: Takeda Chemical Industries, Ltd.Inventors: Nobuo Tanaka, Jotaro Kishimoto, Kotaro Wakamatsu, Takayuki Hagihara, Seiji Ohtani
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Patent number: 5601536Abstract: A needle and a cover with a needle having an elongate shank and a tip with a sharpened point. The cover is coaxially associated with the elongate shank for movement therealong toward the tip and includes a part for extending beyond the sharpened point when the cover is positioned near the tip. A lock associated with the needle and cover cooperates with and holds the cover to prevent axial movement relative to the needle tip after positioning the cover near the tip. A retaining member on the adapter and on the cover releasably attach the cover to the adapter while on the elongate shank of the needle allowing the needle and cover to be disengaged from the catheter and adapter after placement.Type: GrantFiled: June 5, 1995Date of Patent: February 11, 1997Assignee: Becton Dickinson and CompanyInventors: Mark A. Crawford, Timothy J. Erskine, Gerald H. Peterson