Patents by Inventor Andreas Laudat

Andreas Laudat 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).

  • Patent number: 8687858
    Abstract: A method and a device for producing thin sections of a sample by means of a microtome is described, in which a camera acquires at least one image of a surface generated by sectioning of the sample. With the aid of an evaluation device, the image of the surface is evaluated in terms of predefined characteristic values of a section quality. As a function of the characteristic values that are identified, a decision is then made as to whether the section of the sample is accepted or not.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: April 1, 2014
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Andreas Laudat, Annett Leonhardt
  • Patent number: 8353232
    Abstract: The present invention relates to a device for braking or locking a shaft (6) of a microtome (1). The microtome (1) comprises the shaft (6), an actuating element (2), a movement mechanism (37) and a housing (38). With the movement mechanism (37) an object to be cut can be moved relative to a knife blade. The actuating element (2) can be manually actuated by an operator. As a result thereof, the shaft (6) can be rotated. Via the shaft (6), the movement mechanism (37) for performing the relative motion between the object and the knife blade can be driven. Further, the present invention relates to a method for operating a device for braking a shaft (6) of a microtome (1). So that the device can be used in a mechanically formed movement mechanism (37), the inventive device is characterized by an actuator and a braking unit (25). The braking unit (25) is connected in a rotatably fixed manner to the shaft (6).
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: January 15, 2013
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Stefan Thiem, Andreas Laudat
  • Patent number: 8309038
    Abstract: A device for applying a histological section to a slide is described. The histological section is generated by a cutting action performed by a blade of a microtome. The device comprises a positioning device having a component that is rotatably mounted to a bearing and has a receptacle for receiving and holding the slide, wherein the positioning device is designed such that the slide received in the receptacle can be rotated about an axis of rotation of the rotatably mounted component.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 13, 2012
    Assignee: Leica Biosystems Nussloch GmbH
    Inventors: Roland Walter, Andreas Laudat, Christoph Schmitt
  • Publication number: 20100216221
    Abstract: A device for applying a histological section to a slide is described. The histological section is generated by a cutting action performed by a blade of a microtome. The device comprises a positioning device having a component that is rotatably mounted to a bearing and has a receptacle for receiving and holding the slide, wherein the positioning device is designed such that the slide received in the receptacle can be rotated about an axis of rotation of the rotatably mounted component.
    Type: Application
    Filed: November 14, 2008
    Publication date: August 26, 2010
    Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBH
    Inventors: Roland Walter, Andreas Laudat, Christoph Schmitt
  • Publication number: 20100180742
    Abstract: The present invention relates to a device for braking or locking a shaft (6) of a microtome (1). The microtome (1) comprises the shaft (6), an actuating element (2), a movement mechanism (37) and a housing (38). With the movement mechanism (37) an object to be cut can be moved relative to a knife blade. The actuating element (2) can be manually actuated by an operator. As a result thereof, the shaft (6) can be rotated. Via the shaft (6), the movement mechanism (37) for performing the relative motion between the object and the knife blade can be driven. Further, the present invention relates to a method for operating a device for braking a shaft (6) of a microtome (1). So that the device can be used in a mechanically formed movement mechanism (37), the inventive device is characterized by an actuator and a braking unit (25). The braking unit (25) is connected in a rotatably fixed manner to the shaft (6).
    Type: Application
    Filed: June 6, 2008
    Publication date: July 22, 2010
    Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBH
    Inventors: Roland Walter, Stefan Thiem, Andreas Laudat
  • Publication number: 20100118133
    Abstract: A method and a device for producing thin sections of a sample by means of a microtome is described, in which a camera acquires at least one image of a surface generated by sectioning of the sample. With the aid of an evaluation device, the image of the surface is evaluated in terms of predefined characteristic values of a section quality. As a function of the characteristic values that are identified, a decision is then made as to whether the section of the sample is accepted or not.
    Type: Application
    Filed: August 7, 2009
    Publication date: May 13, 2010
    Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBH
    Inventors: Roland Walter, Andreas Laudat, Annett Leonhardt
  • Publication number: 20100101385
    Abstract: A method and apparatus for operating a microtome are described. According to the method, a specific type of a sample to be sectioned is detected, at least one stored sectioning parameter value is determined as a function of the specific type of the sample that was detected, said value being allocated to the specific type of the sample and defines a specific setting of the microtome, and the setting the microtome as defined by the determined sectioning parameter value is performed automatically.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 29, 2010
    Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBH
    Inventors: Roland Walter, Andreas Laudat, Annett Leonhardt
  • Patent number: 6814257
    Abstract: A delivery device (5) for cassettes and/or specimen slides for histological preparations in a printing system (11) is described. The cassettes and/or specimen slides are in each case arranged one above another in stack magazines (6), a control device (1) being provided for removal of a cassette and/or specimen slide from the stack magazines (6). The improvement comprises a drive shaft (12) having a motor (13) for at least two stack magazines (6), and the motor (13) is connected to the control device (1).
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: November 9, 2004
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Manfred Biehl, Roland Walter, Bernd Guenther
  • Patent number: 6766593
    Abstract: An apparatus (1) for drying solvent-based ink is described, in which the ink is applied onto plastic cassettes for histological preparations and/or on glass specimen slides (17) for microscopic thin sections. The apparatus (1) comprises a hot-air blower (2) and/or a flash device (3) for drying the ink.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 27, 2004
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Andreas Laudat, Holger Metzner, Roland Walter
  • Patent number: 6715870
    Abstract: A method and an apparatus for printing onto plastic cassettes for histological preparations and/or onto glass specimen slides for microscopic thin sections are described, in which a computing device (1) is provided to control the printing device (2), and the printing device (2) comprises an inkjet printer for printing onto the cassettes and/or specimen slides. The ink is pre-dried by way of a hot-air drier (3) and completely dried by way of a flash device (4).
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: April 6, 2004
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Uwe Kiene, Manfred Biehl, Andreas Laudat, Holger Metzner, Rolf Metzner, Roland Walter
  • Patent number: 6634268
    Abstract: A method for cutting sections from a specimen using a microtome wherein a cutting knife or specimen is advanced by an advancing carriage into a sectioning plane of a disk microtome. The advancing carriage is moved by a motor drive in order to bring the specimen into contact with an area sensor. When the specimen comes into contact with the area sensor, the position of the motor drive is determined and is compared with a stored position of the sectioning plane. The stored position is previously determined by manually locating the position drive motor when the specimen contacts the area sensor. Control signals for the motor drive are calculated from the two position values, and the advancing carriage is advanced into the sectioning plane by the motor drive taking these control signals into account.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: October 21, 2003
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Bernd Guenther, Siegbert Holtermueller, Andreas Laudat, Rolf Metzner, Roland Walter
  • Patent number: 6598507
    Abstract: A microtome for producing thin sections, in which the cutting operation is performed by way of a relative movement between a cutting knife and an object. A drive system (14) having a drive motor (17), a control circuit (15), and a handwheel (8) is provided to generate the relative movement. The handwheel (8) is connected to an encoder (16) that delivers corresponding signals to the control circuit (15) upon rotation of the handwheel (8). The drive motor (17) is then activated accordingly by way of said control circuit (15). In the absence of encoder signals, the drive system (14) is locked.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: July 29, 2003
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Bernd Günther, Andreas Laudat, Jürgen Vierling, Roland Walter
  • Patent number: 6568307
    Abstract: A microtome (1) having a motorized feed drive system (2) for generating a relative movement between an object (7) that is to be cut and a cutting knife (4). A control circuit (8) and a pressure-sensitive sensor (9) are provided for detecting a position between the cutting knife (4) and the object (7). The motorized feed drive system (2) is switched via the control circuit (8) when the sensor (9) responds. The sensor (9) is equipped with a sensor surface (14) that is at least exactly as large as the surface (16) of the object (7). The sensor surface (14) is arranged parallel to the cutting plane (17).
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: May 27, 2003
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Bernd Günther, Siegbert Holtermüller, Peter Scheck, Andreas Laudat, Rolf Metzner, Roland Walter
  • Publication number: 20030059281
    Abstract: A delivery device (5) for cassettes and/or specimen slides for histological preparations in a printing system (11) is described. The cassettes and/or specimen slides are in each case arranged one above another in stack magazines (6), a control device (1) being provided for removal of a cassette and/or specimen slide from the stack magazines (6). The improvement comprises a drive shaft (12) having a motor (13) for at least two stack magazines (6), and the motor (13) is connected to the control device (1).
    Type: Application
    Filed: July 30, 2002
    Publication date: March 27, 2003
    Inventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Manfred Biehl, Roland Walter, Bernd Guenther
  • Publication number: 20030049178
    Abstract: An apparatus for imprinting cassettes (1) and/or specimen slides, having a printing head (2) and a delivery device (3) for the cassettes (1) and/or specimen slides, is described. A pivot device (5) is provided for alignment of the printing head (2) with differently inclined printing planes (4) or for alignment of differently inclined printing planes (4) with the printing head (2).
    Type: Application
    Filed: July 26, 2002
    Publication date: March 13, 2003
    Inventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Roland Walter
  • Publication number: 20020167577
    Abstract: A method and an apparatus for printing onto plastic cassettes for histological preparations and/or onto glass specimen slides for microscopic thin sections are described, in which a computing device (1) is provided to control the printing device (2), and the printing device (2) comprises an inkjet printer for printing onto the cassettes and/or specimen slides. The ink is pre-dried by way of a hot-air drier (3) and completely dried by way of a flash device (4).
    Type: Application
    Filed: March 26, 2002
    Publication date: November 14, 2002
    Inventors: Uwe Kiene, Manfred Biehl, Andreas Laudat, Holger Metzner, Rolf Metzner, Roland Walter
  • Publication number: 20020139004
    Abstract: An apparatus (1) for drying solvent-based ink is described, in which the ink is applied onto plastic cassettes for histological preparations and/or on glass specimen slides (17) for microscopic thin sections. The apparatus (1) comprises a hot-air blower (2) and/or a flash device (3) for drying the ink.
    Type: Application
    Filed: March 22, 2002
    Publication date: October 3, 2002
    Inventors: Andreas Laudat, Holger Metzner, Roland Walter
  • Publication number: 20020125166
    Abstract: A cassette stack (1) made up of individual plastic cassettes (2) connected detachably to one another, which are provided for the processing of histological preparations for subsequent section preparation, is described. The cassette stack (1) is insertable into a stack magazine (3) of a printing system, and the individual cassettes (2) are connected to one another via at least one adhesive tape (4) and/or via at least one weld seam (5).
    Type: Application
    Filed: March 7, 2002
    Publication date: September 12, 2002
    Inventor: Andreas Laudat
  • Patent number: 6253653
    Abstract: The invention relates to a microtome (1) for producing thin slices for microscopy, which is provided with a base (2), a blade holder (3) for holding a cutting blade (4) and an object holder (5) for holding the object (6) to be cut. Cutting occurs in a plane by a relative movement between the object (6) and the cutting blade (4) To produce the relative movement, a rotating component (7) is provided with a drive motor (17), wherein the rotating axis of the rotating component (7) is arranged obliquely to the base (2), and a feed slide (9) is provided with a linear guide for setting the slice thickness. The structure of said feed slide (9) is such that it is removable via a feed motor (17) and a control circuit (14) connected thereto.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: July 3, 2001
    Assignee: Leica Microsystems Nussloch GmbH
    Inventors: Roland Walter, Manfred Biehl, Juergen Vierling, Andreas Laudat, Peter Scheck, Rolf Metzner