Patents by Inventor Klaus Fischer

Klaus Fischer 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).

  • Electrosurgical instrument
    Patent number: 8623016
    Abstract: The invention concerns an electrosurgical instrument comprising two articulated branches, which can be actuated in the manner of a squeezing tool. The instrument further comprises electrode parts at the distal ends of the branches for grasping tissue and for conducting a coagulating current through the tissue in order to cause it to coagulate as well as current-supplying devices for supplying the coagulating current to the electrode parts from an HF generator. At least one device for preventing a short circuit is arranged and configured on the electrode parts in such a way that the electrode parts are unable to touch.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 7, 2014
    Assignee: Erbe Elektromedizin GmbH
    Inventor: Klaus Fischer
  • Device for mucosa resection
    Patent number: 8574186
    Abstract: To carry out a mucosa resection, a liquid is injected beneath a tissue which is then separated by means of mechanical or electrosurgical equipment. A device is provided that includes a facility for endoscopic water-jet surgery with a control device for regulating a pressure at which a water jet is discharged from a nozzle of the facility to obtain a predetermined amount of energy. An adjusting assembly is provided for setting the pressure to a first value and to a second value. The first value is so chosen that the water jet penetrates a mucosa in such a way that the mucosa is lifted from an underlying muscularis through formation of a fluid deposit. The second value is adjusted and different from the first value in such a way that the mucosa is sectionally cut through by the water jet.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: November 5, 2013
    Assignee: Erbe Elektromedizin GmbH
    Inventor: Klaus Fischer
  • HEMOSTASIS INSTRUMENT
    Publication number: 20130218069
    Abstract: A hemostasis instrument for actively stopping the bleeding, in particular after an open, laparoscopic, or endoscopic operation on a patient, having several hemostasis components. The hemostasis instrument has at least the following hemostasis components:—a thermal hemostasis device for tissue coagulation by producing a temperature above the coagulation temperature of biological tissue by means of a coagulation electrode;—a biochemical hemostasis device for producing a silent electric discharge by means of at least one discharge electrode, and an insulating device, wherein the insulating device is arranged between the discharge electrode and the tissue to be treated;—a supplying device for supplying substances that influence blood clotting to the tissue to be treated, and—a supply device for supplying noble gas to the tissue to be treated.
    Type: Application
    Filed: October 24, 2011
    Publication date: August 22, 2013
    Applicant: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Alexander Neugebauer, Klaus Fischer, Markus D. Enderle
  • ELECTROSURGICAL FORCEPS
    Publication number: 20130079764
    Abstract: Electrosurgical forceps for efficiently severing of hollow organs, in particular vessels. The electrosurgical forceps have a first branch and a second branch for gripping the hollow organ. The forceps have at least one neutral electrode on the second branch, at least one first coagulation electrode and a second coagulation electrode that is disposed on the first branch for applying a first HF current by means of the coagulation electrode, and at least one cutting device, which is arranged between the coagulation electrodes in order to sever the hollow organ in a cutting region. The cutting device has a cutting electrode for applying a second HF current between the cutting and neutral electrodes. The coagulation electrodes are arranged spaced apart from one another in such a way that the first HF current does not flow through or only a minor amount of the same flows through the cutting region.
    Type: Application
    Filed: August 11, 2010
    Publication date: March 28, 2013
    Applicant: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Daniel Schäller, Klaus Fischer, Dieter Hafner
  • TISSUE FUSION INSTRUMENT, IN PARTICULAR A TISSUE FUSION FORCEPS
    Publication number: 20130035685
    Abstract: A tissue fusion instrument having electrodes that are only connected in a punctiform manner to their electrode carrier such that they are electrically conducting and thus, heat-conducting. As a result, heat transfer from the electrode to the respective electrode carrier is restricted. This, on one hand, benefits the desired surgical outcome and, on the other hand, prevents parasitic heating of the surgical instrument and concomitant damage to surrounding tissue.
    Type: Application
    Filed: July 19, 2012
    Publication date: February 7, 2013
    Inventors: Klaus Fischer, Achim Brodbeck, Daniel Schaeller
  • Substrate for Soil Improvement Having a Water-Storing Property, Method for Producing Same, and Use Thereof
    Publication number: 20120322990
    Abstract: The invention relates to a method for producing a lignin-based substrate for soil improvement having a water-storing property, characterized by the following steps: providing lignin, oxidizing the lignin in either an aqueous alkaline suspension or a pH-neutral aqueous suspension, the pH-neutral aqueous suspension being converted into an alkaline substance after the lignin has been oxidized, cross-linking the lignin in an aqueous alkaline medium using multifunctional compounds, and neutralizing, drying, and comminuting the lignin.
    Type: Application
    Filed: February 10, 2011
    Publication date: December 20, 2012
    Applicant: TECHNISCHE UNIVERSITAET DRESDEN
    Inventors: Lars Passauer, Falk Liebner, Klaus Fischer, Joachim Katzur
  • ELECTROSURGICAL ASSEMBLY AND ELECTROSURGICAL INSTRUMENT
    Publication number: 20120303016
    Abstract: An electrosurgical assembly is disclosed having an electrosurgical instrument, a detection device for detecting a predetermined constituent of the atmosphere in the region of a treatment site and a treatment unit, which can be connected to the instrument and a current generator for providing RF energy. The treatment unit includes a mechanism for influencing the treatment process depending on an output signal of the detection device.
    Type: Application
    Filed: December 15, 2010
    Publication date: November 29, 2012
    Applicant: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Klaus Fischer, Alexander Neugebauer, Matthias Voigtlaender, Daniel Schaeller, Mara Szyrach, Joerg Kronenthaler, Lars Blobel, Irina Sigle, Markus D. Enderle
  • Cryosurgical instrument for separating a tissue sample from surrounding tissue of a biological tissue that is to be treated
    Patent number: 8308718
    Abstract: A cryosurgical instrument and a method for separating a tissue sample from surrounding tissue of a biological tissue that is to be treated. The cryosurgical instrument includes a probe for guiding a probe head on to a biological tissue to be treated, and gas conduits for delivering coolant gas. The probe head is designed so that, in order to collect a tissue sample, a limited region of the tissue is cooled by means of the gas delivered and is separated from the surrounding tissue in a state in which it is frozen on the probe head. The instrument includes a support tube or hose in which the probe is guided and which can be moved relative to the probe in such a way that the surrounding tissue can be counter-supported during separation of the tissue sample.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: November 13, 2012
    Assignee: Erbe Elektrommedizin GmbH
    Inventors: Klaus Fischer, Matthias Voigtländer, Daniel Schäller, Mara Szyrach, Irina Sigle
  • Switchable current supply for auxiliary current circuits in a current converter
    Patent number: 8299647
    Abstract: A circuit arrangement with a switchable voltage supply for a control apparatus may include a DC voltage supply terminal; and an AC voltage supply terminal; a control apparatus including at least one input, an output and at least one supply terminal; three electronic switches, each having a control electrode, a reference electrode and a working electrode, wherein the reference electrode of the first electronic switch and of the second electronic switch is coupled to the first node; wherein the working electrode of the first electronic switch is coupled to the supply terminal of the control apparatus; wherein the control electrode of the first electronic switch is coupled to a reference potential, wherein at least one further load is coupled to the working electrode of the second electronic switch.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: October 30, 2012
    Assignee: Osram AG
    Inventors: Klaus Fischer, Josef Kreittmayr
  • Method for producing polyalkenyl succinimide products, novel polyalkenylsuccinimide products with improved properties, intermediate products
    Patent number: 8263535
    Abstract: A process for the preparation of polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, is proposed, in which a polyalkene is reacted with a maleic acid, maleic anhydride or a functional derivative thereof to give a polyalkenylsuccinic anhydride and the polyalkenylsuccinic anhydride is then reacted with an oligoamine or polyamine, the polyalkenylsuccinic anhydride either (a) first being reacted with an alcohol or phenol and, without isolation of the reaction product, then with the oligoamine or polyamine, or (b) the polyalkenylsuccinic anhydride being reacted with the oligoamine or polyamine in the presence of an alcohol or phenol and (c) if desired, the alcohol or the phenol then being removed. Novel polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, and fuel additives are also proposed.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: September 11, 2012
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Hueffer, Peter Schwab, Klaus Fischer, Thomas Berg, Helmut Mach
  • Cryobiopsy probe
    Patent number: 8216153
    Abstract: A cryosurgical instrument for separating a tissue sample from a biological tissue to be treated, for purposes of biopsy. The cryosurgical instrument includes a probe for bringing a probe head up to the biological tissue and a gas line for supplying cooling gas from a gas source of a cryosurgical apparatus to the probe head. The probe head cools a limited tissue region, by means of the supplied gas, for obtaining a tissue sample. The tissue sample can be separated from the surrounding tissue when frozen onto the probe head. The instrument has a support tube in which the probe is guided and which can be moved relative to the probe in such a way that the surrounding tissue can be supported by means of the support tube during the separating of the tissue sample. The instrument also includes an accelerating device that provides a predefined force for the separating process.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: July 10, 2012
    Assignee: ERBE Elektromedizin GmbH
    Inventors: Klaus Fischer, Mara Szyrach, Daniel Schäller, Matthias Voigtländer, Irina Sigle
  • Method for transmitting control information from a control device to a lamp unit as well as a corresponding illuminating system, lamp unit and control device
    Patent number: 8217589
    Abstract: A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control information item for the operation of the lamp unit onto the supplied AC voltage, decoding of the modulation received on the lamp unit side for reading the control information item and driving the light-emitting device in accordance with the control information item. Provision is made for a shunt to be produced in the line used for transmitting the control information item prior to or at the beginning of the modulation of the control information item. The disclosure also provides a lamp unit and a control device for implementing the method. The disclosure also provides a lighting system.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: July 10, 2012
    Assignees: Osram Gesellschaft mit beschrankter Haftung, Insta Elektro GmbH
    Inventors: Helmut Endres, Klaus Fischer, Friedhelm Holtz, Karl-Heinz Krause, Josef Kreittmayr, Friedhelm Wehlmann
  • ANTI-CARBONISATION DEVICE
    Publication number: 20120172789
    Abstract: An anti-carbonisation device (1) is proposed to prevent the carbonisation of tissue upon plasma coagulation by means of a suitable surgical instrument (3), wherein the surgical instrument (3) has a feed line for an oxidising agent (7), a feed line for a gas (5) and an electrode (9) for generation of a plasma, and wherein a gas-oxidising agent mixture for generation of a gas-oxidising agent plasma is provided by the anti-carbonisation device (1).
    Type: Application
    Filed: September 7, 2010
    Publication date: July 5, 2012
    Inventors: Klaus Fischer, Alexander Neugebauer, Markus Enderle, Matthias Zenker
  • MULTIFUNCTIONAL ELEMENT AND METHOD TO PREVENT THE CARBONISATION OF TISSUE BY MEANS OF A MULTIFUNCTIONAL ELEMENT
    Publication number: 20120172874
    Abstract: A multi-functional element suitable for performing at least two surgical/therapeutic interventions, for example, the injection and cutting of tissue, with an anti-carbonization device to prevent the carbonization of tissue upon plasma coagulation by way of a suitable surgical instrument, where the surgical instrument has a feed line for an oxidizing agent, a feed line for a gas and an electrode for generating a plasma. A gas oxidizing agent mixture for producing a gas oxidizing agent plasma is provided by the anti-carbonization device.
    Type: Application
    Filed: September 7, 2010
    Publication date: July 5, 2012
    Inventors: Klaus Fischer, Alexander Neugebauer, Markus Enderle, Matthias Zenker
  • ELECTROSURGICAL INSTRUMENT
    Publication number: 20120150167
    Abstract: An electrosurgical instrument for minimally invasive surgery, the instrument including two gripping parts which can be brought together into a gripping direction or moved apart counter to the gripping direction. At least one gripping part includes three or more electrically conductive sections, electrically insulated relative to each other. Each electrically conductive section may be separately connected to a high frequency (RF) current generator such that each electrically conductive section can be configured in various electrical configurations by the RF current generator.
    Type: Application
    Filed: July 21, 2010
    Publication date: June 14, 2012
    Applicant: ERBE ELEKTROMEDIZIN GMBH
    Inventors: Klaus Fischer, Daniel Schäller, Achim Brodbeck, Markus Enderle
  • CRYOSURGICAL INSTRUMENT
    Publication number: 20120071868
    Abstract: A cryosurgical instrument, in particular a biopsy instrument for transbronchial biopsy, having an elongated instrument base body with a distal and proximal end, in relation to the operational position, a cooled section close to the distal end and which removes tissue, said section being designed such that surrounding biological material adheres thereto, by means of cryoadhesion, when said instrument is in use in the cooled state, and a security section provided at a distance from the tissue removal section and which comprises means for preventing or reducing the adhesion of biological material.
    Type: Application
    Filed: April 14, 2010
    Publication date: March 22, 2012
    Inventors: Klaus Fischer, Mara Szyrach, Markus Enderle
  • Method For Transmitting Control Information From A Control Device To A Lamp Unit As Well As A Corresponding Illuminating System, Lamp Unit And Control Device
    Publication number: 20120062140
    Abstract: A method is provided for driving at least one lamp unit, which is connected to an AC voltage power supply system. The method comprises modulating a control information item for the operation of the lamp unit onto the supplied AC voltage, decoding of the modulation received on the lamp unit side for reading the control information item and driving the light-emitting device in accordance with the control information item. Provision is made for a shunt to be produced in the line used for transmitting the control information item prior to or at the beginning of the modulation of the control information item. The disclosure also provides a lamp unit and a control device for implementing the method. The disclosure also provides a lighting system.
    Type: Application
    Filed: January 22, 2010
    Publication date: March 15, 2012
    Inventors: Helmut Endres, Klaus Fischer, Friedhelm Holtz, Karl-Heinz Krause, Josef Kreittmayr, Friedhelm Wehlmann
  • Step-up driver with minimal switching frequency
    Patent number: 8134301
    Abstract: The invention relates to an electronic ballast comprising a step-up converter for operating a discharge lamp. The electronic ballast is embodied in such a way as to disconnect a switching element (T1) in the step-up converter when a maximum current value of the current flowing through the switching element is reached. The electronic ballast comprises a holding circuit (HS) which is provided with a time-function element (R27, C23) and is embodied in such a way that it sets the time-function element (R27, C23) when the switching element (TI) is disconnected and reconnects the switching element after a time interval defined by the time-function element (R27, C23).
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 13, 2012
    Assignee: OSRAM AG
    Inventors: Klaus Fischer, Josef Kreittmayr
  • PROCESS FOR MANUFACTURING SUBSTRATES PROVIDED WITH A MULTILAYER HAVING THERMAL PROPERTIES,IN PARTICULAR FOR PRODUCING HEATED GLAZING UNITS
    Publication number: 20110268941
    Abstract: A process for manufacturing at least one substrate, especially transparent glass substrates, each provided with a thin-film multilayer comprising an alternation of “n” metallic functional layers especially of functional layers based on silver or a metal alloy containing silver, and of “(n+1)” antireflection coatings, with n being an integer ?3, each antireflection coating comprising at least one antireflection layer, so that each functional layer is positioned between two antireflection coatings, said thin-film multilayer being deposited by a vacuum technique, said multilayer being such that the thicknesses of two functional layers at least are different and the thicknesses of the functional layers have a symmetry within the multilayer relative to the center of the multilayer.
    Type: Application
    Filed: September 30, 2009
    Publication date: November 3, 2011
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Klaus Fischer, Robert Drese, Ariane Blanchard, Sebastian Janzyk
  • Electrosurgical instrument
    Patent number: 8038676
    Abstract: The invention relates to an electrosurgical instrument that comprises two branches joined to one another in an articulated manner, which can be actuated to open or close in a manner corresponding to a clamping, spreading or cutting tool. The instrument further comprises electrode parts at distal ends of the branches, which are used for grasping tissue and passing a coagulation current through the tissue for the purpose of coagulating it and which are electrically insulated from one another, as well as current-supply devices to supply the coagulation current to the electrode parts. In addition, on at least at one electrode part, a cutting section designed as a cutting electrode is provided whereby the electrode part comprises the cutting section and a coagulation section.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: October 18, 2011
    Assignee: ERBE Elektromedizin GmbH
    Inventor: Klaus Fischer