Patents by Inventor Joseph Kost
Joseph Kost 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: 20110319790Abstract: Provided is a pharmaceutical composition for permeabilizing fetal membranes including an active ingredient having a log K in the range of 2 to 4, where K is the octanol/water partition coefficient. The active ingredient may be, for example, bupivacaine, sodium lauryl sulfate or oleic acid. Further provided is a system for transfetal membrane transport. The system includes a probe unit adapted for insertion into a female reproductive tract and releasing a substance onto fetal membranes that permeabilizes the membranes. The system is also configured to apply ultrasound radiation to the fetal membranes to further increase the membrane permeability.Type: ApplicationFiled: November 25, 2009Publication date: December 29, 2011Applicant: B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD.Inventors: Joseph Kost, Mordechai Halak, Drora Shmilovitch, Tamar Triatel, Rivka Goldbart, Aharon Azaguri, Lior Wollach
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Publication number: 20100168648Abstract: The invention provides a system and method for trans-fetal membranes transport. A source of ultrasound sonication is used to deliver ultrasound sonication to fetal membranes to enhance the permeability of the fetal membranes of a gestational sac. In one embodiment, a device is used to collect substances transported from the interior of the gestational sac to the exterior of the gestational sac, such as amniotic or coelomic fluid. In another embodiment a device is used to deliver one or more substances, such as a drug, to an external surface of the fetal membranes.Type: ApplicationFiled: June 13, 2007Publication date: July 1, 2010Inventors: Joseph Kost, Israel Patla, AVraham Schroeder, Lior Wolloch, Mordechi Hallak
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Publication number: 20090155345Abstract: The present invention provides methods for loading of agents and substances into per-formed liposomes, preferably a suspension of pre-formed liposomes as well as to methods for the controlled quantum (step-wise) release of agents and substances from liposomes. One of the principle features of the methods of the invention is to expose the liposomes to ultrasound irradiation having predefined parameters, resulting in an increase in permeability of the liposomes, thereby permitting, respectively, the loading and/or release of agents and substances into and/or from the liposomes.Type: ApplicationFiled: December 7, 2006Publication date: June 18, 2009Applicants: BEN GURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITY, YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM, HI TECH PARK EDMOND CAMPUS GIVAT RAMInventors: Yechezkel Barenholz, Avi Schroeder, Joseph Kost
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Publication number: 20080281178Abstract: Transdermal analyte monitoring systems (TAMS) having increased longevity and improved analyte detection are described herein. Kits for use with the TAMS and methods of using the TAMS and kits are also described. In a preferred embodiment, the TAMS includes a protective, semi-permeable membrane covering the surface of the hydrogel. The protective, semi-permeable membrane contacts with the skin of a user and prevents contamination or fouling of the hydrogel. Optionally, the hydrogel comprises one or more humectants and/or an immobilized enzyme. In another preferred embodiment, the TAMS contains at least one channel or pocket for increasing the amount of oxygen provided to the hydrogel. In one embodiment, a method for improving analyte detection by the TAMS is provided. For example, after the skin porosity is increased by an appropriate pretreatment, a skin preparation wipe is applied to the treated skin area and then the TAMS is applied to the treated area.Type: ApplicationFiled: March 6, 2008Publication date: November 13, 2008Inventors: Han Chuang, James P. Hurley, Joseph Kost
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Patent number: 7066884Abstract: A system, method, and device for non-invasive body fluid sampling is provided. According to one embodiment of the present invention, the system includes a controller that controls the generation of ultrasound; an ultrasonic applicator that applies the ultrasound to an area of biological membrane; a receiver that contacts the area of biological membrane and receives body fluid through and out of the area of biological membrane; and a meter that interacts with the receiver and detects the presence of at least one analyte in the body fluid in the receiver. The receiver may include a membrane and a medium, such as a hydrogel, a fluid, or a liquid, that is contained in the membrane.Type: GrantFiled: March 16, 2001Date of Patent: June 27, 2006Assignee: Sontra Medical, Inc.Inventors: Linda Custer, Tuan A. Elstrom, Scott C. Kellogg, Joseph Kost, Nicholas F. Warner
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Publication number: 20060015058Abstract: The invention according to an exemplary embodiment relates to a method for transporting a substance across a biological membrane comprising the steps of applying a delipidation agent to a portion of the biological membrane, applying a hydration agent to the portion of the biological membrane, sonicating the portion of the biological membrane, and transporting the substance across the biological membrane. The step of applying the delipidation agent may be carried out prior to or simultaneously with the step of applying the hydration agent. The hydration agent may be applied before, during, or after the sonication step. The methods according to exemplary embodiments of the invention can provide improved transdermal transport in applications such as continuous analyte extraction and analysis and transdermal delivery of drugs and vaccines.Type: ApplicationFiled: February 25, 2005Publication date: January 19, 2006Inventors: Scott Kellogg, Shikha Barman, Lauren Roode, Hannah Farnham, Sean Moran, Samir Mitragotri, Joseph Kost, Nicholas Warner
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Patent number: 6887239Abstract: The invention provides a convenient and non-invasive means to prepare cells, tissues, and organs for electrical transmission and reception. In an embodiment of the invention, a control method comprises the use of at least one skin electrode, as a reference electrode, and an electrical sensor to measure periodically or continuously the skin's electrical conductance at the site of preparation. The dynamic change in the conductance through the skin is measured while the ultrasound is applied. Signal processing is performed on the measurement and the level of skin impedance change is controlled by performing a mathematical analysis and using the results of such analysis to control the application of ultrasonic energy. A desired level of skin impedance can be set at a predetermined value or based on a chosen level of skin integrity, subject's sensation of discomfort, or duration of the ultrasound application.Type: GrantFiled: April 11, 2003Date of Patent: May 3, 2005Assignee: Sontra Medical Inc.Inventors: Tuan A. Elstrom, Scott Kellogg, Joseph Kost, Samir S. Mitragotri, Nicolas F. Warner, Steve DiMatteo
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Publication number: 20050049474Abstract: The invention provides a convenient and non-invasive means to prepare cells, tissues, and organs for electrical transmission and reception. In an embodiment of the invention, a control method comprises the use of at least one skin electrode, as a reference electrode, and an electrical sensor to measure periodically or continuously the skin's electrical conductance at the site of preparation. The dynamic change in the conductance through the skin is measured while the ultrasound is applied. Signal processing is performed on the measurement and the level of skin impedance change is controlled by performing a mathematical analysis and using the results of such analysis to control the application of ultrasonic energy. A desired level of skin impedance can be set at a predetermined value or based on a chosen level of skin integrity, subject's sensation of discomfort, or duration of the ultrasound application.Type: ApplicationFiled: September 28, 2004Publication date: March 3, 2005Applicant: Sontra Medical, IncInventors: Scott Kellogg, Tuan Elstrom, Joseph Kost, Samir Mitragotri, Nicolas Warner, Steve Dimatteo
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Publication number: 20040236268Abstract: According to the present invention, a method for enhancing transdermal transport is disclosed. The method includes the steps of increasing a permeability of an area of a membrane with a permeabilizing device. The membrane may be, inter alia, biologic skin or synthetic skin. The permeabilizing device may be an ultrasound-producing device. A substance is transported into and through the area of the membrane. The substance may be a drug, a vaccine, or a component of interstitial fluid.Type: ApplicationFiled: March 5, 2004Publication date: November 25, 2004Applicant: Sontra Medical, Inc.Inventors: Samir S. Mitragotri, Joseph Kost, Scott C. Kellogg, Nicholas F. Warner, Tuan A. Elstrom
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Publication number: 20040210184Abstract: Transdermal transport of molecules during sonophoresis (delivery or extraction) can be further enhanced by application of an electric field, for example, electroporation or iontophoresis. In a preferred embodiment the ultrasound is low frequency ultrasound which induces cavitation of the lipid layers of the stratum corneum (SC). This method provides higher drug transdermal fluxes, allows rapid control of transdermal fluxes, and allows drug delivery or analyte extraction at lower ultrasound intensities than when ultrasound is applied in the absence of an electric field.Type: ApplicationFiled: May 5, 2004Publication date: October 21, 2004Applicant: Massachusetts Institute of TechnologyInventors: Joseph Kost, Uwe Pliquett, Samir S. Mitragotri, Robert S. Langer, James C. Weaver
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Publication number: 20040171980Abstract: According to the present invention, a method for enhancing transdermal transport is disclosed. The method includes the steps of increasing a permeability of an area of a membrane with a permeabilizing device. The membrane may be, inter alia, biologic skin or synthetic skin. The permeabilizing device may be an ultrasound-producing device. A substance is transported into and through the area of the membrane. The substance may be a drug, a vaccine, or a component of interstitial fluid.Type: ApplicationFiled: March 5, 2004Publication date: September 2, 2004Applicant: Sontra Medical, Inc.Inventors: Samir S. Mitragotri, Joseph Kost, Scott C. Kellogg, Nicholas F. Warner, Tuan A. Elstrom
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Publication number: 20040087879Abstract: The present invention is directed to apparatus and methods for producing homogenous cavitation. An ultrasound souce comprising an ultrasound transmitting element having an axis and a cross-section along the axis is disclosed The ultrasound transmitting element also has a first axial end and a second axial end operable to produce ultrasonic waves. The cross-section has an area having a maximum value at the first axial end and a minimum value at the second axial end. A method for producing homogenous cavitation at an area of skin comprises creating a volume of fluid having a uniformly dispersed concentration of cavitation nuclei adjacent the area of skin. Ultrasound is then applied to the volume of fluid and causes cavitation at the cavitation nuclei.Type: ApplicationFiled: June 23, 2003Publication date: May 6, 2004Applicant: Sontra Medical, Inc.Inventors: Samir S. Mitragotri, Joseph Kost, Scott C. Kellogg, Nicholas F. Warner
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Publication number: 20040039418Abstract: The invention provides a convenient and non-invasive means to prepare cells, tissues, and organs for electrical transmission and reception. In an embodiment of the invention, a control method comprises the use of at least one skin electrode, as a reference electrode, and an electrical sensor to measure periodically or continuously the skin's electrical conductance at the site of preparation. The dynamic change in the conductance through the skin is measured while the ultrasound is applied. Signal processing is performed on the measurement and the level of skin impedance change is controlled by performing a mathematical analysis and using the results of such analysis to control the application of ultrasonic energy. A desired level of skin impedance can be set at a predetermined value or based on a chosen level of skin integrity, subject's sensation of discomfort, or duration of the ultrasound application.Type: ApplicationFiled: April 11, 2003Publication date: February 26, 2004Inventors: Tuan A. Elstrom, Scott Kellogg, Joseph Kost, Samir S. Mitragotri, Nicolas F. Warner, Steve DiMatteo
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Patent number: 6620123Abstract: The present invention is directed to apparatus and methods for producing homogenous cavitation. An ultrasound souce comprising an ultrasound transmitting element having an axis and a cross-section along the axis is disclosed The ultrasound transmitting element also has a first axial end and a second axial end operable to produce ultrasonic waves. The cross-section has an area having a maximum value at the first axial end and a minimum value at the second axial end. A method for producing homogenous cavitation at an area of skin comprises creating a volume of fluid having a uniformly dispersed concentration of cavitation nuclei adjacent the area of skin. Ultrasound is then applied to the volume of fluid and causes cavitation at the cavitation nuclei.Type: GrantFiled: July 26, 2001Date of Patent: September 16, 2003Assignee: Sontra Medical, Inc.Inventors: Samir S. Mitragotri, Joseph Kost, Scott C. Kellogg, Nicholas F. Warner
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Publication number: 20030100846Abstract: A system, method, and device for non-invasive body fluid sampling is provided. According to one embodiment of the present invention, the system includes a controller that controls the generation of ultrasound; an ultrasonic applicator that applies the ultrasound to an area of biological membrane; a receiver that contacts the area of biological membrane and receives body fluid through and out of the area of biological membrane; and a meter that interacts with the receiver and detects the presence of at least one analyte in the body fluid in the receiver. The receiver may include a membrane and a medium, such as a hydrogel, a fluid, or a liquid, that is contained in the membrane.Type: ApplicationFiled: March 11, 2002Publication date: May 29, 2003Inventors: Linda Custer, Tuan A. Elstrom, Scott C. Kellogg, Joseph Kost, Nicholas F. Warner
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Patent number: 6491657Abstract: Methods and devices for application of ultrasound to a small area of skin for enhancing transdermal transport. An ultrasound beam having a first focal diameter is channelled into a beam having a second, smaller diameter without substantial loss of energy. Higher energy ultrasound can be used while causing less pain. Alternatively, ultrasound energy is applied through a vibrating element positioned just contacting, above or extending into the skin. Use of the element facilitates extraction of analyte and may enhance drug delivery. A two step noninvasive method involves application of ultrasound to increase skin permeability and removal of ultrasound followed by transdermal transport that can be further enhanced using a physical enhancer.Type: GrantFiled: May 21, 2001Date of Patent: December 10, 2002Assignee: Sontra Medical, Inc.Inventors: Stephen Rowe, Joseph Kost, Samir S. Mitragotri, Michael Pishko, Matthew Davis
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Publication number: 20020045850Abstract: Methods and devices for application of ultrasound to a small area of skin for enhancing transdermal transport. An ultrasound beam having a first focal diameter is channelled into a beam having a second, smaller diameter without substantial loss of energy. Higher energy ultrasound can be used while causing less pain. Alternatively, ultrasound energy is applied through a vibrating element positioned just contacting, above or extending into the skin. Use of the element facilitates extraction of analyte and may enhance drug delivery. A two step noninvasive method involves application of ultrasound to increase skin permeability and removal of ultrasound followed by transdermal transport that can be further enhanced using a physical enhancer.Type: ApplicationFiled: May 21, 2001Publication date: April 18, 2002Inventors: Stephen Rowe, Joseph Kost, Samir S. Mitragotri, Michael Pishko, Matthew Davis
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Publication number: 20010056255Abstract: Transdermal transport of molecules during sonophoresis (delivery or extraction) can be further enhanced by application of an electric field, for example, electroporation or iontophoresis. In a preferred embodiment the ultrasound is low frequency ultrasound which induces cavitation of the lipid layers of the stratum corneum (SC). This method provides higher drug transdermal fluxes, allows rapid control of transdermal fluxes, and allows drug delivery or analyte extraction at lower ultrasound intensities than when ultrasound is applied in the absence of an electric field.Type: ApplicationFiled: March 20, 2000Publication date: December 27, 2001Inventors: Joseph Kost, Uwe Pliquett, Samir S. Mitragotri, Robert S. Langer, James C. Weaver
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Patent number: 6234990Abstract: Methods and devices for application of ultrasound to a small area of skin for enhancing transdermal transport. An ultrasound beam having a first focal diameter is channelled into a beam having a second, smaller diameter without substantial loss of energy. Higher energy ultrasound can be used while causing less pain. Alternatively, ultrasound energy is applied through a vibrating element positioned just contacting, above or extending into the skin. Use of the element facilitates extraction of analyte and may enhance drug delivery. A two step noninvasive method involves application of ultrasound to increase skin permeability and removal of ultrasound followed by transdermal transport that can be further enhanced using a physical enhancer.Type: GrantFiled: June 30, 1997Date of Patent: May 22, 2001Assignee: Sontra Medical, Inc.Inventors: Stephen Rowe, Joseph Kost, Samir S. Mitragotri, Michael Pishko, Matthew Davis
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Patent number: 6206920Abstract: The invention discloses a composition having a mixture of a pharmaceutically, medically or veterinarily acceptable polymer, preferable a poly (lactic-co-glycolic acid) copolymer (PLGA) containing between about 10 and 100 wt. % lactic acid (LA) units, preferably between about 50 and 90 wt. % LA units, and &agr;-(tetrahydrofuranyl)-&ohgr;-hydroxypoly(oxy-1,2-ethandiyl) (glycofurol). Methods of forming solid implants in situ in an animal body, said implants optionally comprising a drug or other biologically active agent, as well as the use of the compositions of the invention in the treatment of animal bodies, are also disclosed.Type: GrantFiled: December 23, 1998Date of Patent: March 27, 2001Assignee: Ben-Gurion University of the NegevInventors: Rom Eliaz, Joseph Kost