Patents by Inventor Robert Virag
Robert Virag has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110067703Abstract: A medical device includes a conduit for a fluid. The conduit has a wall formed of a hydrophobic polymer with a hydrophilic polymer layer extruded over it, and an antimicrobial substantially dispersed within the hydrophilic polymer. The antimicrobial compound may be a predetermined amount of phosphorus-based glass having a predetermined quantity of a metal such as silver substantially dispersed therein. The medical device may be an endotracheal tube made by providing a hydrophobic polymer, a hydrophilic polymer and an antimicrobial compound, forming the hydrophobic polymer, the hydrophilic polymer and the antimicrobial compound into a conduit, and forming a cuff on an end of the conduit.Type: ApplicationFiled: December 1, 2010Publication date: March 24, 2011Applicant: Mallinckrodt Inc.Inventors: Paul W. Martens, Robert L. Nieto, Robert Virag, Adin M. Potter
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Publication number: 20060118122Abstract: A medical device includes a conduit for a fluid. The conduit has a wall formed of a hydrophobic polymer with a hydrophilic polymer layer extruded over it, and an antimicrobial substantially dispersed within the hydrophilic polymer. The antimicrobial compound may be a predetermined amount of phosphorus-based glass having a predetermined quantity of a metal such as silver substantially dispersed therein. The medical device may be an endotracheal tube made by providing a hydrophobic polymer, a hydrophilic polymer and an antimicrobial compound, forming the hydrophobic polymer, the hydrophilic polymer and the antimicrobial compound into a conduit, and forming a cuff on an end of the conduit.Type: ApplicationFiled: January 24, 2006Publication date: June 8, 2006Inventors: Paul Martens, Robert Nieto, Robert Virag, Adin Potter
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Publication number: 20060118121Abstract: A medical device includes a conduit for a fluid. The conduit has a wall formed of a hydrophobic polymer with a hydrophilic polymer layer extruded over it, and an antimicrobial substantially dispersed within the hydrophilic polymer. The antimicrobial compound may be a predetermined amount of phosphorus-based glass having a predetermined quantity of a metal such as silver substantially dispersed therein. The medical device may be an endotracheal tube made by providing a hydrophobic polymer, a hydrophilic polymer and an antimicrobial compound, forming the hydrophobic polymer, the hydrophilic polymer and the antimicrobial compound into a conduit, and forming a cuff on an end of the conduit.Type: ApplicationFiled: January 24, 2006Publication date: June 8, 2006Inventors: Paul Martens, Robert Nieto, Robert Virag, Adin Potter
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Publication number: 20040220534Abstract: A medical device includes a conduit for a fluid. The conduit has a wall formed of a hydrophobic polymer with a hydrophilic polymer layer extruded over it, and an antimicrobial substantially dispersed within the hydrophilic polymer. The antimicrobial compound may be a predetermined amount of phosphorus-based glass having a predetermined quantity of a metal such as silver substantially dispersed therein. The medical device may be an endotracheal tube made by providing a hydrophobic polymer, a hydrophilic polymer and an antimicrobial compound, forming the hydrophobic polymer, the hydrophilic polymer and the antimicrobial compound into a conduit, and forming a cuff on an end of the conduit.Type: ApplicationFiled: April 29, 2003Publication date: November 4, 2004Inventors: Paul W. Martens, Robert L. Nieto, Robert Virag
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Patent number: 5974605Abstract: The present invention relates to a blanket for use with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: September 15, 1998Date of Patent: November 2, 1999Assignee: Mallinckrodt Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 5839133Abstract: The present invention relates to a blanket for use with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: July 19, 1996Date of Patent: November 24, 1998Assignee: Mallinckrodt Medical, Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 5546936Abstract: The present invention relates to a specialized tracheal tube and a method of using such for introduction of gasses or vapors along the trachea, such as by an anesthesiologist during the administration of anesthesia to a patient undergoing surgery. In particular, the present invention relates to a tracheal tube having a filament reinforced flexible portion that allows for movement of the proximal end relative to the distal end of the tracheal tube without creating stress at the proximal or distal ends. The tracheal tube according to the present invention allows 360.degree. access to the head and neck area of a patient, and allows for movement of the proximal end of the tracheal tube during a surgical procedure without requiring re-intubation.Type: GrantFiled: November 8, 1994Date of Patent: August 20, 1996Assignee: Mallinckrodt Medical, Inc.Inventors: Robert A. Virag, Richard V. Nye, Duane L. Horton
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Patent number: 5540224Abstract: The present invention relates to endotracheal tubes used for conducting gases or vapors along the trachea, for example by an anesthesiologist, paramedic or emergency room doctor. In particular, the present invention relates to an improved and novel endotracheal tubes having structure which enables the simultaneous administration of medication to both lungs of the patient.Type: GrantFiled: July 1, 1993Date of Patent: July 30, 1996Assignee: Mallinckrodt Medical, Inc.Inventors: Anne M. Buret, Pam Jablenski, Robert A. Virag
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Patent number: 5514169Abstract: The present invention relates to a blanket for use with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: June 5, 1995Date of Patent: May 7, 1996Assignee: Mallinckrodt Medical, Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 5384924Abstract: The present invention relates to a blanket for use with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: August 3, 1992Date of Patent: January 31, 1995Assignee: Mallinckrodt Medical, Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 5360439Abstract: The present invention relates to a method for warming a patient with a blanket used with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: November 24, 1992Date of Patent: November 1, 1994Assignee: Mallinckrodt Medical, Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 5343579Abstract: The present invention relates to a blanket for use with forced air convection systems, wherein the blanket includes multiple inlet ports. By providing a blanket with multiple inlets, the user has the choice of positioning the air supply or blower unit and the supply hose on either side of the patient. In addition, in a preferred embodiment, the inlet ports are resealable, thus allowing the user to switch inlets during use.Type: GrantFiled: March 12, 1993Date of Patent: September 6, 1994Assignee: Mallinckrodt Medical, Inc.Inventors: Scott D. Dickerhoff, Thomas F. Kappel, Robert A. Virag
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Patent number: 4606866Abstract: A humidifier (10) used in respiratory therapy is disclosed where the surface tension of a light probe (32) used therewith is maintained greater than the surface tension of the aqueous liquid used in the humidifier (10). Maintaining the surface tension of the light probe (32) greater than the surface tension of the aqueous liquid generally avoids erroneous indication of aqueous liquid level in the humidifier (10). Erroneous indications of liquid level can be caused by gas bubbles adhering to submerged portions of the light probe (32) or liquid droplets adhering to unsubmerged portions of the light probe (32).Type: GrantFiled: April 8, 1985Date of Patent: August 19, 1986Assignee: Baxter Travenol Laboratories, Inc.Inventors: Mark McGlothlin, Dennis Reisdorf, Robert Virag
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Patent number: 4595002Abstract: A nebulizer is provided which includes a liquid container and a cap attachable thereto. The cap includes a outlet port for delivery of a nebulized liquid/gas mixture to a patient, a gas inlet, a venturi in communication with the gas inlet, a conduit through which liquid may be circulated in the cap and heated by an external heater, a liquid outlet adjacent the end of the venturi, so that the gas flowing through the venturi draws out the liquid, and a dial rotatable on the cap. The dial has windows which may be positioned over openings in the cap to allow air from the environment to enter the cap and dilute the gas to a desired concentration. The dial engages the cap securely once its position is set on the cap, so the gas concentration is not inadvertently changed during use of the nebulizer.Type: GrantFiled: October 20, 1983Date of Patent: June 17, 1986Assignee: Baxter Travenol Laboratories, Inc.Inventors: Thomas L. Michaels, Michael J. Finley, Robert A. Virag
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Patent number: 4303601Abstract: A humidifier for gases, for example for medical administration, may be adapted for insertion into a well of a heater for warming liquid in the humidifier. A seamless metal can defines a cylindrical wall and a closed bottom end, containing wick means for absorbing water and presenting it in dispersed form to gases flowing through the can. Transparent probe means extend into the can and serve as a liquid level control for preferably automatically controlling the liquid level in the can to be maintained in the lower one third of the can.Type: GrantFiled: March 31, 1980Date of Patent: December 1, 1981Assignee: Baxter Travenol Laboratories, Inc.Inventors: Daniel J. Grimm, John M. Unger, Robert A. Virag
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Patent number: 4198969Abstract: A nebulizer for forming a liquid mist in a stream of gas. The nebulizing chamber carries a liquid suction conduit adapted to communicate with a supply of liquid below the nebulizing chamber. Accordingly, as suction is exerted on the nebulizing chamber, for example, by a patient breathing in, liquid is drawn upwardly into the nebulizing chamber through the suction conduit. When the liquid reaches a predetermined level it enters into the nebulizing apparatus of the device, with the result that nebulization only takes place at a predetermined minimum level of suction.Type: GrantFiled: January 4, 1979Date of Patent: April 22, 1980Assignee: Baxter Travenol Laboratories, Inc.Inventor: Robert A. Virag
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Patent number: 4190046Abstract: A nebulizer cap for oxygen therapy and the like includes a cap body, having attachment means for sealingly connecting the cap body to a container for liquid to be neubulized. A dip tube is carried by the cap body to extend into the container, with the one end of the tube being in flow communication with conduit means defined by the cap body. The conduit means communicates with the liquid inlet of a nebulizing venturi, while a gas port passes through the cap body to the exterior, and is in communication with a gas inlet of the nebulizing venturi. The conduit leading from the dip tube to the liquid inlet of the venturi is defined by open channels, positioned on an upstanding portion of the cap body. A thin metal heat exchange shell is sealingly positioned over the upstanding portion of the cap body to enclose the channels, which preferably define a zig-zag flow pattern. A toroidal heater can fit over the shell when heating is desired.Type: GrantFiled: March 10, 1978Date of Patent: February 26, 1980Assignee: Baxter Travenol Laboratories, Inc.Inventor: Robert A. Virag
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Patent number: 4105029Abstract: A parenteral liquid infusion set comprising flow tubing as an intermediate site for the potential access of air suitable for connection with another set or the like, and a drip chamber upstream thereof having a constricted drop-forming member. To avoid the possibility of suction of air through the air access site, a tubing section of constricted bore is provided downstream from the potential air access site and so proportioned as to cause the pressure drop of the portion of the set upstream from the potential air access site to be always less than the pressure drop of the portion of the set downstream from the potential air access site under conditions of normal use and specifically under a precise set of test conditions.Type: GrantFiled: April 28, 1977Date of Patent: August 8, 1978Assignee: Baxter Travenol Laboratories, Inc.Inventor: Robert A. Virag
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Patent number: D267975Type: GrantFiled: August 20, 1980Date of Patent: February 15, 1983Assignee: Baxter Travenol Laboratories, Inc.Inventors: Edward van Amerongen, Frank Cammarata, III, Robert A. Virag
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Patent number: D295380Type: GrantFiled: June 25, 1985Date of Patent: April 26, 1988Assignee: Baxter Travenol Laboratories, Inc.Inventors: Robert A. Virag, Michael W. Scharf