Means For Intermixing Liquid With Solid Or Different Liquid Patents (Class 604/82)
  • Patent number: 6929620
    Abstract: An injector for liquid medicine comprises a cylindrical body 1, first and second gasket 2, 3 contained in a lumen of cylindrical body 1. The cylindrical body 1 is provided with a fluid inlet 13 and a fluid outlet 14 in opposite sides of the cylindrical body 1 with respect to the longitudinal axis thereof. Second gasket 3 is spaced from the first gasket 2 to form a fluid chamber 4 between them. The first gasket 2 is adapted to be moved by sliding along the inner wall of the cylindrical body 1 from a first position to the distal end 11 of cylindrical body 1 via a second position. The fluid inlet 13 is opened at a position closer to the distal end 11 of the cylindrical body 1 than the outlet 14 is. The first gasket 2 is stopped at a second position where the fluid chamber 4 is communicated with the fluid outlet 14 but prevented from fluid-communication with the fluid inlet 13.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 16, 2005
    Assignee: Nipro Corporation
    Inventor: Mitsuru Hasegawa
  • Patent number: 6921381
    Abstract: A laparoscopic spray device for selectively applying a multiple component material dispensed from a multiple component material applicator to a surgical site in vivo is disclosed. The device comprises an interface member capable of engaging a multiple component applicator, a body having at least two lumens therein, and a detachable spray tip in fluid communication with the body. The detachable spray tip includes a mixing chamber having at least one flexible mixing member positioned therein which is capable of creating a turbulent flow within a mixing chamber. In addition, the at least one mixing member prevents a back flow of material from the mixing chamber to the at least two lumens. The present invention is particularly useful in remotely applying multiple component tissue adhesives to an internal incision.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: July 26, 2005
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Richard Spero, Atif Yardimci, Gordon Epstein
  • Patent number: 6921380
    Abstract: A multi-component sealant applicator comprises a dual catheter for delivering sealant. Each catheter communicates with one of a pair of fluid sealant agent sources and comprises a mixing volume within the dual catheter for mixing multiple components of a multi-component sealant prior to discharge from a distal end of the catheter and a clearing system to clear undesired material from the mixing volume or the vicinity of the mixing volume, wherein one catheter is mounted for longitudinal movement within the other and the inner catheter is usable as a plunger to remove clogs. The catheter may comprise a reciprocal drive mechanism proximally coupled with the dual catheter to move one catheter longitudinally with respect to the other. The drive mechanism may comprise a ratchet and pawl.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 26, 2005
    Assignee: Baxter International Inc.
    Inventors: Gordon Howard Epstein, Mitchell E. Levinson
  • Patent number: 6902543
    Abstract: The invention relates to a syringe-type device for freshly preparing a solution, suspension or dispersion, for example injectable formulations, preferably according to a method for reconstitution in a vacuum. The device is shown in FIG. 1. The invention also relates to a method for packing the fresh preparation of the solution, suspension or dispersion in a cylindrical reservoir that can be used in a single or multi-dose syringe provided for the same. This is a method for packing the preparation inside the cylindrical reservoir, which is closed on one side by an injection plunger whose movement in the reservoir is limited. This method is characterised in that the elements to be packed are introduced into the reservoir from the injection plunger side before the reservoir is closed by said plunger. Said reservoir is a tube or ampule which is closed on the other side in advance.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 7, 2005
    Assignee: Societe de Conseils de Recherches et Applications Scientifiques (S.C.R.A.S.)
    Inventors: Roland Cherif-Cheikh, Christophe Aubert
  • Patent number: 6901283
    Abstract: A system for producing an image of a patient preferably includes a source of contrast medium, a pressurizing unit operably associated with the source of contrast medium for injecting the contrast medium into the patient, an imaging unit providing an internal image of the patient based upon a condition of the contrast medium in the patient, a control unit adapted to adjust the condition of the contrast medium injected into the patient, an electronic interface in communication with at least one of the pressurizing unit and the imaging unit, and a fluid path disposed between the pressurizing unit and the patient.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: May 31, 2005
    Assignee: Medrad, Inc.
    Inventors: Russell Morrison Evans, III, Arthur E. Uber, III
  • Patent number: 6884232
    Abstract: A laparoscopic spray device for selectively applying a multiple component material dispensed from a multiple component material applicator to a surgical site in vivo is disclosed. The device comprises an interface member capable of engaging a multiple component applicator, a body having at least two lumens therein, and a detachable spray tip in fluid communication with the body. The detachable spray tip includes a mixing chamber having at least one flexible mixing member positioned therein which is capable of creating a turbulent flow within a mixing chamber. In addition, the at least one mixing member prevents a back flow of material from the mixing chamber to the at least two lumens. The present invention is particularly useful in remotely applying multiple component tissue adhesives to an internal incision.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: April 26, 2005
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Adam Hagmann, Richard Spero, Atif M. Yardimci
  • Patent number: 6884231
    Abstract: A dual-chambered dispensing device having a single piston. The device is driven by an electric precision motor. Each chamber is capable of aspiration and dispensation. When one chamber is aspirating, the other is dispensing.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: April 26, 2005
    Assignee: Hamilton Company
    Inventors: Rod Mitchell Walters, Chih-Chung Chen
  • Patent number: 6884230
    Abstract: The invention provides a handheld, manually operable fluid applicator, particularly suited to the needs of surgeons, for dispensing a multi-component fluid applicator, for example fibrin and thrombin components of a tissue adhesive. A preferred applicator has a body containing reservoirs for the sealants and a detachable dispensing head which can be removed to refill the reservoirs. In the mixing head, the sealant components undergo turbulent mixing, for mixing efficacy, in a mixing chamber provided in a one-piece flexible and resilient manifold have “self-sealing” inlet and outlet ports. To enhance mixing, the mixing chamber has an increased cross-sectional area over the combined areas of the component supply passages and the fluid flows are directly opposed to impinge on each other in the mixing chamber. The applicator body and mixing head each have a housing with an ergonomic, streamlined or otherwise smoothly contoured shape and esthetic appearance.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: April 26, 2005
    Assignee: Baxter International Inc.
    Inventors: Gordon H. Epstein, Alan Kirby Plyley, Russel James Redmond
  • Patent number: 6878338
    Abstract: A reagent dissolution device and methods of using the same, wherein the device comprises a housing (40), a diluent (25), and at least one reagent bed (35), wherein the diluent (25) and the at least one reagent bed (35) are separated by a friable barrier (50) and a flow distribution disk (100). Alternate embodiments include chambers with a plurality of reagent beds as well as chambers for the mixing of two or more liquid reagents.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: April 12, 2005
    Assignee: Prismedical Corporation
    Inventors: Michael A. Taylor, Carolyn Fitzgerald
  • Patent number: 6871087
    Abstract: A device and method for providing a suspended agent such as a contrast agent without mechanical resuspension. A volume of agent is divided into sub-volumes in a network of tubes, cells, sponges, grooves, etc. A propellant fluid flows through the network to release the suspended agent. The network may be internal to a container for the propellant fluid. Alternatively, the network may be adjacent an exit port of a container for the propellant fluid, or may be in-line between a propellant fluid container and a patient. The invention reduces sedimentation of agents into one or a few aggregates and eliminates a mechanical mixing step. The invention thus provides a uniformly suspended agent, improving patient health and safety and increasing cost and time savings.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: March 22, 2005
    Assignee: Mallinckrodt Inc.
    Inventors: Michael Scott Hughes, William Hagen, Mark Boyce, Frank M. Fago
  • Patent number: 6863660
    Abstract: An applicator for dispensing a first and second component of a biological adhesive, such as fibrin glue. At least one of said components may contain a suspension of fibrin microbeads (FMB) or a suspension of cells. The present invention uses a single supply of pressurized gas to force the components from the applicator using positive fluid pressure and to atomize them into a convergent spray. Another embodiment of the present invention also provides for the endoscopic application of the biological adhesive directly to tissue defects. The application of positive pressure allows precise metering of the components and application of the adhesive, prevents internal coagulation of the fibrin or clogging by suspended particles and reduces waste and contamination of the components.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: March 8, 2005
    Assignee: Hapio Biotech, Inc.
    Inventor: Gerard Marx
  • Patent number: 6860870
    Abstract: A gas powered spraying device that can be used for single or multi-part reactive medical polymer compositions is provided. A fluid or one or more reactive solutions are sprayed independently at a tissue surface, and the spraying of each solution of multi-component embodiments is controlled by a separate valve. Each solution is provided with a separate spray outlet, and each spray outlet is surrounded by an annular sheath of flowing gas. Gas flow is provided at two or more flow levels, including a high level flow for active spraying and a low level bypass flow to remove drips and prevent clogging, which can improve device reliability. Gas pressure can be used to drive fluid to its spray outlet, as well as to spray the fluid from the outlet to the tissue surface.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 1, 2005
    Assignee: Focal, Inc.
    Inventors: Dean M. Pichon, David J. Nedder, John R. Sousa, J. Jeffrey Kablik, Albert H. Linder
  • Patent number: 6852099
    Abstract: A system and method for controllably applying the fluids to a body surface or cavity is disclosed. These fluids can include tissue adhesives, hemostats, sealants, anti-adhesives, or any other fluid capable of being applied to a body surface or cavity. In one embodiment, the system and method is used to apply components of a tissue adhesive with the aid of pressurized gas. This system comprises a tube having a proximal end and a distal end, at least one component lumen and a gas lumen which open at the distal end of the tube, a component source connected to the component lumen, a source of pressurized gas connected to the gas lumen, a sensor capable of delivering a sensor signal, a switch connected to the source of pressurized gas, and a control system programmed to switch off the pressurized gas supply when the sensor signal corresponds to a predetermined limit value.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: February 8, 2005
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Heinz Redl, Zafar Khakpour
  • Publication number: 20040267193
    Abstract: Apparatus for sealing a puncture communicating with a blood vessel includes a pair of syringe barrels having sealing components therein, and a plunger assembly biased to slide within the barrels from proximal to distal positions for injecting the components through outlets of the barrels. An auto-injector assembly is coupled to the plunger apparatus, and includes a spring mechanism locked in an inactive condition and an actuator activatable to release the spring mechanism, whereupon the spring mechanism automatically advances the plunger assembly towards the distal position to inject the components from the barrels. A valve coupled to the outlets and movable from a first position for mixing and/or reconstituting the sealing components from vials, a second position where the outlets communicate with a delivery line for delivering the sealing components into a puncture, and a third position for closing the outlets.
    Type: Application
    Filed: March 22, 2004
    Publication date: December 30, 2004
    Applicant: AccessClosure, Inc.
    Inventors: Celso J. Bagaoisan, Nicanor Domingo, Farhad Khosravi, Suresh S. Pai
  • Patent number: 6835186
    Abstract: This invention provides a medical device for delivering volumetric quantities of a first and a second biochemically reactive fluid in which separate MBUs atomize the fluids. The device of the present invention includes a fluid delivery device for laparoscopically delivering fluids having two feed conduits for delivering fluid to feed ports of the mechanical breakup units, the mechanical breakup units having two feed ports for receiving fluid from the feed conduits and directing such fluid into spin chambers and funneling portions having a sloped sidewall for directing fluid from the spin chambers through an exit port. The device is suitably dimensioned for creating a spray of two fluids with different viscosities such as fibrinogen and thrombin in such a manner that the thrombin spray cone encompasses the fibrinogen spray cone at a distance of about one inch from the exit port with a 0.5 cc/second flow rate to avoid depositing unreacted fibrinogen on a surface.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: December 28, 2004
    Assignee: Baxter International, Inc.
    Inventors: David W. Pennington, Atif M. Yardimci, David Amrani, Arnold C. Bilstad, Yves A. Delmotte, James P. Diorio, Robert L. Petersen, Joseph F. Prybell, James Slepicka, Cristina Stadler, John Womelsdorf
  • Patent number: 6835187
    Abstract: The technical field of the invention is that of needleless syringes used for injecting active principles in powder form for therapeutic purposes. The invention concerns a needleless syringe (1) comprising successively a gas generator (2), a gas expanding chamber (3), means for retaining active particles and an ejection tube (4). The invention is characterised in that the particle retaining means consists of an inner seal (14) having at least a cavity (15), the inner seal (14) serves both to contain the active principle and to generate a shock wave when it is ruptured.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: December 28, 2004
    Assignee: Crossject
    Inventors: Patrick Alexandre, Georges Baud, Philippe Gautier, Denis Roller
  • Publication number: 20040260242
    Abstract: A device and method for providing a suspended agent such as a contrast agent without mechanical resuspension. A volume of agent is divided into sub-volumes in a network configured to suspend and deliver the sub-volumes of agent to a patient when a propellant fluid flows through the network. The invention reduces sedimentation of agents into one or a few aggregates and eliminates a mechanical mixing step. The invention thus provides a uniformly suspended agent, improving patient health and safety and increasing cost and time savings.
    Type: Application
    Filed: July 9, 2004
    Publication date: December 23, 2004
    Applicant: MALLINCKRODT INC.
    Inventors: Michael Scott Hughes, William Hagen, Brian Doty, Gordon Persaud
  • Publication number: 20040254527
    Abstract: Bioactive agents are dosed by a jet dispenser using inkjet technology, such as that used in printing devices. The jet dispenser dispenses precise amounts of bioactive agent into a fluid manifold, in which the bioactive agent can be mixed with an infusion liquid for infusing into a patient. A controller may control delivery of one or more drugs, timing of drug administration, or change drug regimens in response to a changing medical condition of a patient. A drop detector can be used to detect various characteristics of the droplets of the bioactive agent dispensed by the jet dispenser and provide a feedback signal to the controller to determine whether a detected characteristic satisfies a predetermined condition. Methods for administering bioactive agents using a jet dispenser also are disclosed.
    Type: Application
    Filed: June 10, 2003
    Publication date: December 16, 2004
    Inventors: Christopher John Vitello, William F. King, Eric L. Ames, Frederic Adam Ornellas
  • Publication number: 20040249339
    Abstract: Injection devices, such as needleless injection devices, and methods of making the using the same are disclosed.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 9, 2004
    Applicant: BIOVALVE TECHNOLOGIES, INC.
    Inventors: John Willis, Thaddeus Minior, Robert Gonnelli
  • Publication number: 20040243055
    Abstract: Methods and systems for treating medical devices. The treatment includes introducing liquid antimicrobial agents into medical devices.
    Type: Application
    Filed: June 2, 2003
    Publication date: December 2, 2004
    Inventor: Sharon Mi Lyn Tan
  • Publication number: 20040236262
    Abstract: A double syringe delivery system is disclosed for holding a pair of syringes in a manner so as to accommodate the simultaneous activation of the plunger of each syringe in order to effect simultaneous delivery of the contents of each syringe. The delivery system includes a delivery mechanism for delivering the contents of both syringes to a site of application. The delivery system further includes a support member that is positioned between the two syringe bodies. The elongated support member has resilient, C-shaped clamps on one end of the support member. The clamps are designed to be removably clamped onto the applicator so that the syringe barrels will be held together in a parallel manner. The elongated support member further comprises finger grips. A plunger connects the two syringe plungers so that they can also be simultaneously activated.
    Type: Application
    Filed: June 24, 2004
    Publication date: November 25, 2004
    Inventors: Kevin D. McIntosh, Richard M. Albrecht
  • Publication number: 20040228208
    Abstract: A mixing vial for storing and mixing first and second components includes a mixing container for holding one of the components, and a supplemental container received within the mixing container for holding the other of the components separated from the first component. Manually operable release mechanism is actuatable to produce opening of the supplemental container within the mixing container to permit mixing of the previously segregated components to form a combined mixture in the mixing container.
    Type: Application
    Filed: June 22, 2004
    Publication date: November 18, 2004
    Applicants: The Government of the United States of America,, The Department of Health and Human Services, Centers for Disease Control and Prevention
    Inventors: Mark James Papania, James J. Barry, Mark C. Bagley
  • Publication number: 20040220518
    Abstract: Devices, systems and methods for delivering one or more drugs to one or more internal body locations (such as the cerebrospinal fluid) are disclosed. In various aspects, the systems and methods may involve catheters having infusion sections with permeable membranes that develop significant back pressure to enhance uniform delivery of the drug over an infusion section; catheters that have two or more infusion sections spaced apart along the length of the same catheter, catheters that include two or more infusion sections serviced by independent lumens (such that, e.g., different drug solutions can be delivered to the different infusion sections); implantable drug delivery systems with pumps and multiple reservoirs from which drugs can be delivered; systems that are capable of delivering drug solutions with selected densities; etc.
    Type: Application
    Filed: December 23, 2003
    Publication date: November 4, 2004
    Applicant: Medtronic, Inc.
    Inventors: Kenneth T. Heruth, Mark S. Lent, Justin A. Blanco
  • Publication number: 20040215149
    Abstract: The invention relates to an injector device for delivery of liquid from a high pressure source, and also to a method of performing such an injection. The device comprises a storage chamber 6, for the liquid or the liquid precursor components, comprising a storage barrel 16 with at least a section of substantially constant cross-section, defining a storage chamber axis, and a pressure chamber 4 comprising a pressure barrel 10 of substantially constant cross-section, defining a pressure chamber axis, for accommodation of at least one piston therein and having a front end opening 14 for ejection of the liquid. The pressure chamber being of sufficient strength to sustain the liquid pressure.
    Type: Application
    Filed: May 20, 2004
    Publication date: October 28, 2004
    Inventor: Birger Hjertman
  • Patent number: 6802822
    Abstract: A dispensing tip for e.g. a syringe dispensing an adhesive tissue sealant, having two rigid sections connected together by a flexible section. Preferably, although bendable, the flexible section has enough resilience that in the absence of external force the two rigid sections are held at a predictable angle to one another. In this way manual dispensing into hard to reach places during surgery is facilitated. This flexibility also facilitates use of the dispensing tip with a cannula.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 12, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Larry H. Dodge
  • Patent number: 6796966
    Abstract: The invention relates to compositions, methods, apparatus, and kits for alleviating or preventing vasoconstriction or vasospasm in a mammal. The compositions, methods, apparatus, and kits are also useful for alleviating or preventing ischemic tissue damage resulting from ischemia associated with cerebral vasoconstriction which follows aneurysmal subarachnoid hemorrhage, with embolic stroke, with coronary artery obstruction, and with other conditions. These compositions, methods, apparatus, and kits generally relate to adventitial (i.e., extra-luminal) administration of a nitric oxide donor compound to a blood vessel in a mammal.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: September 28, 2004
    Inventor: Jeffrey E. Thomas
  • Publication number: 20040186425
    Abstract: A power assisted method and injector device for controllably delivering to patients a dispersion medicament or diagnostically active agent, the homogeneity of which is preserved throughout delivery. Diagnostically active agents disclosed are gas microbubble suspensions useful in ultrasonic diagnostic imaging and liposomal formulations in which liposome vesicles are loaded with iodinated compounds.
    Type: Application
    Filed: January 30, 2004
    Publication date: September 23, 2004
    Inventors: Michel Schneider, Christophe Golay, Laurent Jacob, Jean Brochot, Feng Yan, Christian Mathieu
  • Publication number: 20040171984
    Abstract: A syringe for sequentially administering different fluids includes a floating piston which separates the syringe into a first portion for receiving a first fluid to be administered and a second portion for receiving a second fluid to be administered. The floating piston includes a fluid tight seal which initially separates the first and second portions of the syringe and apparatus for connecting the second portion of the syringe to the syringe needle after the first fluid has been discharged from the syringe.
    Type: Application
    Filed: February 27, 2004
    Publication date: September 2, 2004
    Inventor: Christian John Greenfield
  • Patent number: 6783514
    Abstract: An applicator is provided for dispensing a first and a second component of a biological adhesive. The applicator includes a housing having a housing head for enclosing therein a first reservoir containing the first component, and a second reservoir containing the second component. The housing further includes an elongated body portion defining a longitudinal axis for enclosing therein a conduit assembly having a first and a second conduit in communication with the first and second reservoir, respectively. An activator assembly is provided which includes an activator and a rachet mechanism for compressing the reservoirs within the housing for dispensing the biological components into the conduits. An applicator tip having two separate channels in communication with the conduits may be provided on a distal end of the elongated body portion for dispensing the components on the application site. The first and second components are preferably fibrinogen and thrombin which intermix to form a fibrin sealant.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: August 31, 2004
    Assignee: United States Surgical Corporation
    Inventors: H. Johnathan Tovey, Ernie Aranyi, Vinod C. Nagori, Stanley Marczyk
  • Patent number: 6780167
    Abstract: The multi-lumen intravenous extension system and method for independently conveying medicinal fluids include an extension including an elongate cylindrical body having a main lumen extending axially therein and at least one satellite lumen extending parallel with the main lumen in the extension, a coupling/connector at a proximal end of the extension, a liquid supply system connected to the proximal end connector for delivering liquid to the main lumen, at least one syringe coupled to the proximal connector for supplying a drug medication, pharmaceutical agent, or other liquid to the satellite or secondary lumen, and a connector forming a mixing chamber coupled to a distal end of the extension. The connector is adapted for connection to an intravenous or intra-vascular catheter or needle leading to an intra-vascular access site. The fluidic connection between the mixing connector and the multi-lumens of the extension substantially prevents over-pressurization of the vascular access device.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: August 24, 2004
    Inventor: James Ernest Leone
  • Publication number: 20040158136
    Abstract: An injection device for use with tissue of a mammalian body comprising a first tubular member and a second tubular member slidably disposed in the first tubular member. The first and second tubular members have respective proximal and distal extremities. The distal extremity of the second tubular member is provided with a needle that is extendable from the distal extremity of the first tubular member. The proximal extremity of the second tubular member is lockable relative to the proximal extremity of the first tubular member. The second tubular member has a column strength when locked within the first tubular member for limiting retraction of the second tubular member relative to the first tubular member during puncture of the tissue by the needle.
    Type: Application
    Filed: November 25, 2003
    Publication date: August 12, 2004
    Inventors: Edward J. Gough, Alan Stein
  • Patent number: 6773414
    Abstract: A device for dispensing at least two mutually reactive components, such as fibrinogen and thrombin, comprising a supplier (12A, 12B) having a primary channel for supplying a respective one of said at least two reactive components to a dispenser (14) having secondary channels (18A, 18B) for separately discharging said components at a distal end orifice thereof opening into a target area for external intimate mixing of the respective reactive components outside a distal tip end of said dispenser (14). A distributor (38, 40) is interposed between said supplier and said dispenser for multiplying the number of the respective primary channels with at least a factor 2. Adjacent ones of said secondary channels (18A, 18B) are adjoined to primary channels (32, 34) intended for supply of reactive components of different kind.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: August 10, 2004
    Assignee: Biovitrum AB
    Inventor: Olle Ljungquist
  • Publication number: 20040147873
    Abstract: A delivery system for delivering a shear-sensitive injectable material into the body of a mammal, such as a human being, acts as a mechanical feed that continuously mixes a shear-sensitive injectable material as it delivers the shear-sensitive injectable material to a target tissue, or to a site adjacent a target tissue. In one embodiment of the invention, the delivery system comprises an injector system including a rotatable mixing member coupled to a driving system. The injector system comprises a housing defining a lumen and having an output end and a driving system connection end and includes a rotatable mixing member for coupling to the driving system and for mixing and delivering the shear-sensitive injectable material. The driving system comprises a drive mechanism, an actuator capable of actuating the drive mechanism, and an interfacing member coupled to the drive mechanism for coupling with the mixing member to rotate the mixing member when the interfacing member is driven by the drive mechanism.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Inventor: Barry N. Gellman
  • Publication number: 20040143238
    Abstract: A system forms a cardiac conduction block at a location in a heart of a patient without substantially ablating cardiac tissue. The system includes a delivery system coupled to a source of material that is substantially non-ablative with respect to cardiac tissue. The delivery system delivers the material to the location, and the material at the location forms a conduction block without ablating the cardiac cells there. The material may include living cells, such as for example skeletal myocytes, and/or may include a non-living matter such as biopolymers such as a fibrin glue agent, or collagen agents. An expandable member with needle assembly is used to deliver the material so as to form a non-ablative circumferential conduction block at a location where a pulmonary vein extends from an atrium.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 22, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Randall J. Lee
  • Patent number: 6764463
    Abstract: A method and an apparatus for the storage and transfer of a lyophilisate, oncolytic, mutagenic, or other prescription is disclosed. An ampule prior to its being sealed has an orifice at one end for the addition of the lyophilisate, for example or one component of a multi-component mixture. After placement of the lyophilisate, the orifice is sealed. The ampule has a body portion formed with flexibly deformable walls and with the sealed orifice defines a blind bore. An opening of the ampule is also included and has a tapered section adapted to frictionally fit over a taper of a male luer-type fitting commonly found on syringes and needleless cannulas. The opening is protected by a frangible cap integrally formed during manufacture. By removing the cap and docking the opening with a syringe, liquid enters the ampule for mixing with the dry contents in the ampule without ambient air.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: July 20, 2004
    Inventor: Barry Farris
  • Patent number: 6764467
    Abstract: A fibrin mixture and dispenser assembly is provided for mixing a first protein component with sterile water to form a first protein solution and for dispensing the first protein solution. The first protein solution forms a biological adhesive when intermixed with a second protein solution. The second protein solution is preferably mixed and dispensed by a similar fibrin mixture and dispenser assembly. The two fibrin mixture and dispenser assemblies can be housed within a single housing. The assembly includes a piercer and a first tubular extension having grooves for providing fluid communication between a reservoir and a mixing chamber or a vial. The reservoir is also in fluid communication with a dispensing needle through a second tubular extension. The reservoir is configured to contain water which is introduced to the mixing chamber. The mixing chamber is configured to contain the first protein component.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: July 20, 2004
    Assignee: United States Surgical Corporation
    Inventors: Mark S. Roby, Ernie Aranyi, Richard Yagami, H. Jonathan Tovey
  • Publication number: 20040138611
    Abstract: An automatic medicament injector having a compartment for a dry medicament component and a compartment for a wet medicament component. The two compartments are separated by a seal structure that has a plug that is moved from a sealing position into a mixing position when the device is activated. The seal structure includes a wiper that scrapes the interior walls in the dry component compartment to prevent the dry component from accumulating at the seal/glass interface. A tapered insert “funnels” the mixed medicament components to an attached needle assembly, but can be removed when the device is filled. A filter is provided between the medicament compartments and the needle assembly. A chamber between the filter and the needle assembly allows for better flow through the filter. An actuation assembly drives the plug into the mixing position and forces the mixed medicament through the needle and into the user.
    Type: Application
    Filed: October 23, 2003
    Publication date: July 15, 2004
    Applicant: MERIDIAN MEDICAL TECHNOLOGIES, INC.
    Inventors: Steven M. Griffiths, Robert L. Hill, John G. Wilmot
  • Publication number: 20040127846
    Abstract: The present invention relates generally to medical devices for mixing, preparing and administering therapeutic compositions, and more particularly to a system comprising two syringes and a locking ring wherein two compositions are mixed between the two syringes immediately prior to administration.
    Type: Application
    Filed: August 5, 2003
    Publication date: July 1, 2004
    Inventors: Richard L. Dunn, Cody L. Yarborough
  • Publication number: 20040122359
    Abstract: The apparatus for production of mixtures from two components has a container for each and devices to combine the components in the mixing space and for extrusion of the mixture. The powdered component (4) is situated in the lower part of the inner space (21), which is sealed by a bottom (10). This carries a nozzle (2) with closure membrane (3). The inner space (21) is closed on the top by the lower wall (6) and the sliding seal (8). The liquid component (9) is situated in the inner space (18) of the inner hollow cylinder (5). This is closed on the top by the upper wall (11). The lower and upper wall (6) and (11) each have an opening with sealing lips (7) and (12) that are closed by parts of the mixing rod (15). A torus (20), a section with smaller diameter (19), a mixing disk (22), as well as a mandrel (24), are present on the lower part of the mixing rod (15).
    Type: Application
    Filed: September 10, 2003
    Publication date: June 24, 2004
    Applicant: Kyphon Inc.
    Inventors: Robert Wenz, Paul M. Sand
  • Publication number: 20040106896
    Abstract: A system forms a cardiac conduction block at a location in a heart of a patient without substantially ablating cardiac tissue. The system includes a delivery system coupled to a source of material that is substantially non-ablative with respect to cardiac tissue. The delivery system delivers the material to the location, and the material at the location forms a conduction block without ablating the cardiac cells there. The material may include living cells, such as for example skeletal myocytes, and/or may include a non-living matter such as biopolymers such as a fibrin glue agent. An expandable member with needle assembly is used to deliver the material so as to form a non-ablative circumferential conduction block at a location where a pulmonary vein extends from an atrium.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 3, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Randall J. Lee, Karen Christman, Richard Sievers
  • Patent number: 6740062
    Abstract: The invention relates to an injector device for delivery of liquid from a high pressure source, and also to a method of performing such an injection. The device comprises a storage chamber 6, for the liquid or the liquid precursor components, comprising a storage barrel 16 with at least a section of substantially constant cross-section, defining a storage chamber axis, and a pressure chamber 4 comprising a pressure barrel 10 of substantially constant cross-section, defining a pressure chamber axis, for accommodation of at least one piston therein and having a front end opening 14 for ejection of the liquid. The pressure chamber being of sufficient strength to sustain the liquid pressure.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: May 25, 2004
    Assignee: Pharmacia AB
    Inventor: Birger Hjertman
  • Publication number: 20040092905
    Abstract: A fluid mixing unit insertable along conveyance and/or distribution lines, particularly for mixing diagnostic or medical fluids or the like along biomedical lines, comprising a body that is internally hollow and is provided with at least one pair of intake ports for introducing two fluids to be mixed, which are associable with respective feeder devices, and a discharge port for discharging the mixture of the two fluids, which is associable with an outflow device, and a duct for the flow and mixing of the two fluids that is formed in the body and is connected to the intake ports and to the discharge port.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 13, 2004
    Applicant: SIDAM DI AZZOLINI GRAZIANO E C.S.A.S.
    Inventor: Graziano Azzolini
  • Publication number: 20040092864
    Abstract: A syringe assembly for administering a variety of fluids includes a syringe provided with a plurality of flow-isolated chambers, each of which is in flow communication with a respective lumen of a multi-lumen needle located downstream from the syringe. Each lumen is flow-isolated from the rest of the lumens and guides a respective one of the variety of fluids toward an outlet port formed in the needle so that the fluids mix with one another only upon exiting the outlet port.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Inventors: Frank H. Boehm, Benedetta D. Malnick
  • Patent number: 6726656
    Abstract: A system and method for the preparation and delivery of intravenous drugs includes a liquid inlet for connection to a liquid supply and vial receptacles. The system may also include a liquid outlet for providing the intravenous drug in mixed, liquid form to the patient. The system may include a chamber having a variable volume, and a valve mechanism, which may be actuated to control flow between the liquid outlet, the variable-volume chamber, the vial receptacles and the liquid inlet. The liquid inlet, the vial receptacles, the variable-volume chamber, the liquid outlet and the valve mechanism may be located in a disposable cassette, which may be received in a control unit.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: April 27, 2004
    Assignee: Deka Products Limited Partnership
    Inventors: Dean L. Kamen, Charles M. Grinnell, Marc A. Mandro, Dennis Gilbreath, Kevin Grant, Jason A. Demers, William T. Larkins, Robert Manning, Richard Lanigan
  • Patent number: 6726650
    Abstract: A power assisted method and injector device for controllably delivering to patients a dispersion medicament or diagnostically active agent, the homogeneity of which is preserved throughout delivery. Diagnostically active agents disclosed are gas microbubble suspensions useful in ultrasonic diagnostic imaging and liposomal formulations in which liposome vesicles are loaded with iodinated compounds.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: April 27, 2004
    Assignee: Bracco Research S.A.
    Inventors: Michel Schneider, Christophe Golay, Laurent Jakob, Jean Brochot, Feng Yan, Christian Mathieu
  • Patent number: 6723067
    Abstract: An apparatus for delivering aerosolized fibrin endoscopically to a wound is disclosed. The apparatus has a pair of syringes for holding fibrin precursors, a mixing chamber for mixing the fibrin precursors separately with pressurized gas to form individual aerosol solutions, and a delivery tube for delivery of the aerosol solutions to a remote surgical site for formation of an aerosolized fibrin seal.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: April 20, 2004
    Inventor: David H. Nielson
  • Patent number: 6723068
    Abstract: The present invention relates to a drug delivery device for mixing and delivering a drug by injection. The device includes a housing having a first port or opening therein that receives a first container that contains a fluid or powdered drug, for example a lyophilized drug. The housing can also include a second port or opening that receives a second container that contains a fluid to be mixed with the drug to form an injectable fluid. The device includes a manifold having a channel that fluidly connects the first and second containers. A penetrating membrane such as a needle is used to inject the drug into a patient which is in fluid communication with the first container. The needle is movable from a storage position in the housing to an injection position extending through the housing.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: April 20, 2004
    Assignee: Elan Pharma International Limited
    Inventors: Gilad Lavi, Gil Ygal, Israil Tsals, Joseph Gross
  • Patent number: 6719719
    Abstract: A spike for facilitating the introduction of liquid under pressure into a container containing a substance is provided which includes an elongate spike shaft having a spike side wall, a longitudinal axis, a distal end and a proximally located end portion, where the distal end has a sharp, pointed tip. An introduction channel is located within the spike shaft for receiving liquid into the container where a portion of the introduction channel is angled to cause liquid to travel out of the introduction channel in a direction non-parallel to the longitudinal axis of the spike shaft. An extraction channel may be included within the spike shaft for removing liquid from the container, where the extraction channel extends through the elongate spike shaft towards the proximally located end portion.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: April 13, 2004
    Assignee: Elan Pharma International Limited
    Inventors: Ehoud Carmel, Gilad Lavi, Gil Yigal, Izrail Tsals
  • Patent number: 6719729
    Abstract: A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components includes a container and a piston unit. The container has at least two axially extending chambers with circumferential sealing means projecting inwardly from inner walls of the chambers. The piston unit has at least two pistons and a transversely extending mount integrally adjoining forward ends of the pistons. Each piston has a passage axially extending within its interior as well as an outlet opening at a forward end and a transverse inlet opening near a rearward end. The pistons are arranged for coaxial telescoping movement of the container and the piston unit toward one another from a closed storage position into an open release position. In the closed storage position, the rearward ends of the pistons are spaced from the rearward ends of the chambers so as to define therein reservoirs containing one of the components.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 13, 2004
    Assignee: Dentaco Dentalindustrie und-Marketing GmbH
    Inventor: Alberto C. Sogaro
  • Patent number: 6719901
    Abstract: A system for the production of autologous thrombin, comprising a centrifuge including a blood reservoir for receiving and separating an autologous anticoagulated blood sample having multiple inactive blood components and means for removing at least one of said inactive blood components upon separation, and a dispenser having at least two collection chambers for receiving said at least one of said inactive blood components, wherein a first collection chamber activates a first portion of said inactive blood component and stores the resulting coagulated blood component comprising a clot and said autologous thrombin.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: April 13, 2004
    Assignee: Medtronic, Inc.
    Inventors: Victor D. Dolecek, Robert F. Baugh, John G. Rivera, William F. McKay, Jeffery C. Marx