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).
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Patent number: 8687858Abstract: 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: GrantFiled: August 7, 2009Date of Patent: April 1, 2014Assignee: Leica Biosystems Nussloch GmbHInventors: Roland Walter, Andreas Laudat, Annett Leonhardt
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Patent number: 8353232Abstract: 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: GrantFiled: June 6, 2008Date of Patent: January 15, 2013Assignee: Leica Biosystems Nussloch GmbHInventors: Roland Walter, Stefan Thiem, Andreas Laudat
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Patent number: 8309038Abstract: 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: GrantFiled: November 14, 2008Date of Patent: November 13, 2012Assignee: Leica Biosystems Nussloch GmbHInventors: Roland Walter, Andreas Laudat, Christoph Schmitt
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Publication number: 20100216221Abstract: 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: ApplicationFiled: November 14, 2008Publication date: August 26, 2010Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBHInventors: Roland Walter, Andreas Laudat, Christoph Schmitt
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Publication number: 20100180742Abstract: 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: ApplicationFiled: June 6, 2008Publication date: July 22, 2010Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBHInventors: Roland Walter, Stefan Thiem, Andreas Laudat
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Publication number: 20100118133Abstract: 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: ApplicationFiled: August 7, 2009Publication date: May 13, 2010Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBHInventors: Roland Walter, Andreas Laudat, Annett Leonhardt
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Publication number: 20100101385Abstract: 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: ApplicationFiled: October 15, 2009Publication date: April 29, 2010Applicant: LEICA BIOSYSTEMS NUSSLOCH GMBHInventors: Roland Walter, Andreas Laudat, Annett Leonhardt
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Patent number: 6814257Abstract: 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: GrantFiled: July 30, 2002Date of Patent: November 9, 2004Assignee: Leica Microsystems Nussloch GmbHInventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Manfred Biehl, Roland Walter, Bernd Guenther
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Patent number: 6766593Abstract: 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: GrantFiled: March 22, 2002Date of Patent: July 27, 2004Assignee: Leica Microsystems Nussloch GmbHInventors: Andreas Laudat, Holger Metzner, Roland Walter
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Patent number: 6715870Abstract: 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: GrantFiled: March 26, 2002Date of Patent: April 6, 2004Assignee: Leica Microsystems Nussloch GmbHInventors: Uwe Kiene, Manfred Biehl, Andreas Laudat, Holger Metzner, Rolf Metzner, Roland Walter
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Patent number: 6634268Abstract: 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: GrantFiled: February 1, 2001Date of Patent: October 21, 2003Assignee: Leica Microsystems Nussloch GmbHInventors: Bernd Guenther, Siegbert Holtermueller, Andreas Laudat, Rolf Metzner, Roland Walter
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Patent number: 6598507Abstract: 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: GrantFiled: March 13, 2000Date of Patent: July 29, 2003Assignee: Leica Microsystems Nussloch GmbHInventors: Bernd Günther, Andreas Laudat, Jürgen Vierling, Roland Walter
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Patent number: 6568307Abstract: 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: GrantFiled: March 13, 2000Date of Patent: May 27, 2003Assignee: Leica Microsystems Nussloch GmbHInventors: Bernd Günther, Siegbert Holtermüller, Peter Scheck, Andreas Laudat, Rolf Metzner, Roland Walter
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Publication number: 20030059281Abstract: 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: ApplicationFiled: July 30, 2002Publication date: March 27, 2003Inventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Manfred Biehl, Roland Walter, Bernd Guenther
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Publication number: 20030049178Abstract: 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: ApplicationFiled: July 26, 2002Publication date: March 13, 2003Inventors: Uwe Kiene, Andreas Laudat, Holger Metzner, Roland Walter
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Publication number: 20020167577Abstract: 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: ApplicationFiled: March 26, 2002Publication date: November 14, 2002Inventors: Uwe Kiene, Manfred Biehl, Andreas Laudat, Holger Metzner, Rolf Metzner, Roland Walter
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Publication number: 20020139004Abstract: 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: ApplicationFiled: March 22, 2002Publication date: October 3, 2002Inventors: Andreas Laudat, Holger Metzner, Roland Walter
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Publication number: 20020125166Abstract: 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: ApplicationFiled: March 7, 2002Publication date: September 12, 2002Inventor: Andreas Laudat
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Patent number: 6253653Abstract: 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: GrantFiled: January 29, 1999Date of Patent: July 3, 2001Assignee: Leica Microsystems Nussloch GmbHInventors: Roland Walter, Manfred Biehl, Juergen Vierling, Andreas Laudat, Peter Scheck, Rolf Metzner