Patents by Inventor Jan Dahmén
Jan Dahmén 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: 20240123549Abstract: A description is given of a method for the laser welding of two parts to be joined (1) that are positioned in relation to one another, in which method the laser head, with the laser beam (9) emitted from it, and the two parts to be joined (1), with the joint (3) thereof, are moved in relation to one another in a feeding direction along the longitudinal extent of the joint (3) and the laser beam (9) produces in the joint (3) a weld seam with a target welding-in depth (8) which is deeper than the critical welding-in depth of the parts to be joined (1), wherein the welding method is performed in two steps and, to form the weld seam connecting the two parts to be joined (1), in a first step material in the joint (3) is melted by the laser beam (9) down to the target welding-in depth (8) and wherein, in a subsequent step, the weld seam produced by the first step is melted once again down to a welding-in depth which, as a maximum, corresponds to the critical welding-in depth of the parts to be joined (1).Type: ApplicationFiled: February 22, 2022Publication date: April 18, 2024Inventors: Jan STUHRMANN, Christian DAHMEN
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Patent number: 11370071Abstract: A joining method for a medical device, in particular a surgical instrument or implant, with a shaft and an attachment to be secured on the shaft, the method having the following steps: heating the attachment or cooling the shaft, such that an internal diameter of an opening of the heated attachment is greater than an external diameter of the shaft, then placing the shaft into the opening of the attachment, and then cooling the attachment, so as to shrink the attachment onto the shaft in a manner substantially free of gaps, or heating the shaft, such that the shaft and the opening are connected by an interference fit. A corresponding medical device is produced by the joining method.Type: GrantFiled: January 2, 2020Date of Patent: June 28, 2022Assignee: Aesculap AGInventors: Janina Ackermann, Sven Barthelmes, Jan Dahmen, Andreas Deutschendorf, Till Mattes, Elke Pleil
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Publication number: 20220063026Abstract: A joining method for a medical device, in particular a surgical instrument or implant, with a shaft and an attachment to be secured on the shaft, the method having the following steps: heating the attachment or cooling the shaft, such that an internal diameter of an opening of the heated attachment is greater than an external diameter of the shaft, then placing the shaft into the opening of the attachment, and then cooling the attachment, so as to shrink the attachment onto the shaft in a manner substantially free of gaps, or heating the shaft, such that the shaft and the opening are connected by an interference fit. A corresponding medical device is produced by the joining method.Type: ApplicationFiled: January 2, 2020Publication date: March 3, 2022Inventors: Janina Ackermann, Sven Barthelmes, Jan Dahmen, Andreas Deutschendorf, Till Mattes, Elke Pleil
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Patent number: 10244930Abstract: A positioning clip to position an inner tube in an outer tube of an endoscope includes at least one inner support surface to support the positioning clip on the inner tube, at least one outer support surface to support the positioning clip on the outer tube, and a clamping device to clamp the positioning clip on the inner tube or on the outer tube.Type: GrantFiled: August 13, 2010Date of Patent: April 2, 2019Assignee: Karl Storz SE & Co. KGInventor: Jan Dahmen
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Patent number: 10025091Abstract: An optical instrument, in particular an endoscope, with a hollow instrument housing for receiving optical elements, wherein the distal end and/or proximal end is closed in a fluid-tight manner via an end window. In order to create an optical instrument which, while being easy to assemble, ensures a reliable fluid-tight seal of the instrument housing even during autoclaving, it is proposed according to the invention that the end windows are each sealed off in a fluid-tight manner with respect to the instrument housing via at least one spring-loaded sealing element.Type: GrantFiled: June 14, 2013Date of Patent: July 17, 2018Assignee: Karl Storz SE & Co. KGInventor: Jan Dahmen
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Patent number: 9763559Abstract: An endoscope with an instrument housing and with a shaft that is mounted on the distal end of the instrument housing and consists of an outer tube and an inner tube that is mounted at least partly in the outer tube, so that the outer tube and the inner tube are mounted on the instrument housing so that they can move with respect to one another in the axial direction of the shaft. To provide an endoscope that ensures a constantly fluid-tight relative motion of the two shaft tubes with respect to one another, it is proposed with the invention that the outer tube and inner tube should be mounted on the instrument housing so that they are mobile with respect to one another in the axial direction of the shaft by means of at least one flexible membrane.Type: GrantFiled: August 13, 2010Date of Patent: September 19, 2017Assignee: Karl Storz GmbH & Co. KGInventors: Jan Dahmen, Elmar Teichtmann
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Patent number: 9738632Abstract: A compound of formula Ia: The present invention relates to novel indazolyl derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments.Type: GrantFiled: December 2, 2016Date of Patent: August 22, 2017Assignees: AstraZeneca AB, Bayer Pharma AktiengesellschaftInventors: Markus Berger, Hartmut Rehwinkel, Jan Dahmen, Anders Eriksson, Thomas Hansson, Nafizal Hossain, Per Tomas Klingstedt, Matti Lepisto, Stinabritt Nilsson, Martin Hemmerling, Karl Edman
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Patent number: 9717400Abstract: An illuminating lens for a medical headlamp, endoscope or exoscope, to generate an illuminating light bundle with variable light distribution includes a liquid lens with variable focal length to modify a focusing of the illuminating light bundle. The invention also relates to an observation device with an illuminating lens of this type as well as a method to generate an illuminating light bundle with variable light distribution.Type: GrantFiled: November 15, 2012Date of Patent: August 1, 2017Assignee: Karl Storz GmbH & Co. KGInventor: Jan Dahmen
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Patent number: 9661988Abstract: In an optics tube for an endoscope, a lens arrangement including at least one rod lens is received in the inside of the optics tube, wherein a sleeve is fixed on the at least one rod lens and at least partially encloses the rod lens, and wherein the sleeve is welded to the optics tube. The invention also relates to an endoscope having such an optics tube, and to a method for mounting at least one rod lens in the inside of an optics tube.Type: GrantFiled: February 20, 2014Date of Patent: May 30, 2017Assignee: Karl Storz GmbH & Co. KGInventors: Jan Dahmen, Walter Vogel
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Patent number: 9625700Abstract: A visual field apparatus for an image transmission apparatus including a channel that connects the proximal end and the distal end of the visual field apparatus, for inputting the image transmission apparatus, and an optical device on the distal end of the channel that is configured to influence the visual field or the focusing of the image transmission apparatus. A method for preparing an endoscope for a succeeding use including determining a visual field required for the succeeding use, selecting a visual field apparatus with the determined visual field and a channel, and combining the image transmission apparatus with the selected visual field apparatus. A method for autoclaving a visual field apparatus for an image transmission apparatus, including closing the channel on the proximal end so that it is fluid-tight, autoclaving the visual field apparatus after the fluid-tight closing, and opening the channel on the proximal end after autoclaving.Type: GrantFiled: June 1, 2011Date of Patent: April 18, 2017Assignee: Karl Storz GmbH & Co. KGInventor: Jan Dahmen
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Publication number: 20170081315Abstract: A compound of formula Ia: The present invention relates to novel indazolyl derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicamentsType: ApplicationFiled: December 2, 2016Publication date: March 23, 2017Inventors: Markus Berger, Hartmut Rehwinkel, Jan Dahmen, Anders Eriksson, Thomas Hansson, Nafizal Hossain, Per Tomas Klingstedt, Matti Lepisto, Stinabritt Nilsson, Martin Hemmerling, Karl Edman
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Patent number: 9512110Abstract: A compound of formula Ia: The present invention relates to novel indazolyl derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicamentsType: GrantFiled: November 19, 2014Date of Patent: December 6, 2016Assignees: AstraZeneca AB, Bayer Pharma AktiengesellschaftInventors: Markus Berger, Hartmut Rehwinkel, Jan Dahmen, Anders Eriksson, Thomas Hansson, Nafizal Hossain, Per Tomas Klingstedt, Matti Lepistö, Stinabritt Nilsson, Martin Hemmerling, Karl Edman
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Patent number: 9408525Abstract: An objective lens unit for endoscopes, with an objective lens having at least one lens and with an objective lens frame that is mounted in an endoscope housing in such a way that the insertion depth in the distal direction is restricted by a covering glass established in the endoscope housing and the objective lens frame that can be fastened in the endoscope housing forms the proximal end. In order to provide an objective lens unit for endoscopes that is simple to assemble and can be positioned in stationary manner in the endoscope housing, it is proposed according to the invention that the objective lens frame should be capable of being removably fastened in the endoscope housing.Type: GrantFiled: November 10, 2011Date of Patent: August 9, 2016Assignee: Karl Storz GmbH & Co. KGInventor: Jan Dahmen
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Patent number: 9307892Abstract: An endoscope with an adjustable viewing direction includes a shaft, an image transmission device for transmitting an image from a distal end of the endoscope to a proximal end of the endoscope, a hermetically tight sheath around the image transmission device, with a light admission window at the distal end of the endoscope, a manipulating device at the proximal end of the endoscope, a swivel actuation device on the manipulating device for manual adjustment of an angle between the viewing direction and a longitudinal axis of the shaft, a magnetic coupling device for magnetically transmitting a force, parallel to the longitudinal axis of the shaft, between the swivel actuation device and a force transmission device inside the hermetically tight sheath, and a rotation actuation device on the manipulating device for manually rotating the viewing direction about the longitudinal axis of the shaft relative to the manipulating device.Type: GrantFiled: November 19, 2013Date of Patent: April 12, 2016Assignee: Karl Storz, GmbH & Co. KGInventor: Jan Dahmen
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Patent number: 9297954Abstract: A light conductor having a bundle of optic fibers to transmit light, and a method for bending the light conductor made up of optic fibers. The light conductor with a bundle of optic fibers to transmit light of a light source, which can be coupled onto a first end portion of the light conductor, to a second end portion of the light conductor, includes a first portion and a curved second portion configured as a connecting portion, where the optic fibers in the second portion are fixed in place with respect to one another, free of tension, by means of a hardened cementing agent, while maintaining the curvature.Type: GrantFiled: January 18, 2013Date of Patent: March 29, 2016Assignee: Karl Storz GmbH & Co. KGInventor: Jan Dahmen
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Publication number: 20150080434Abstract: A compound of formula Ia: The present invention relates to novel indazolyl derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicamentsType: ApplicationFiled: November 19, 2014Publication date: March 19, 2015Inventors: Markus Berger, Hartmut Rehwinkel, Jan Dahmen, Anders Eriksson, Thomas Hansson, Nafizal Hossain, Per Thomas Klingstedt, Matti Lepistö, Stinabritt Nilsson, Martin Hemmerling, Karl Edman
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Patent number: 8916600Abstract: A compound of formula Ia: The present invention relates to novel indazolyl derivatives, to pharmaceutical compositions comprising such derivatives, to processes for preparing such novel derivatives and to the use of such derivatives as medicaments.Type: GrantFiled: June 6, 2012Date of Patent: December 23, 2014Assignees: Astrazeneca AB, Bayer Pharma AktiengesellschaftInventors: Markus Berger, Hartmut Rehwinkel, Jan Dahmén, Anders Eriksson, Thomas Hansson, Nafizal Hossain, Per Tomas Klingstedt, Matti Lepistö, Stinabritt Nilsson, Martin Hemmerling, Karl Edman
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Patent number: 8870758Abstract: An endoscope with adjustable viewing angle includes a light outlet device on the distal end of the endoscope to radiate illuminating light at an angle of illumination and a light conductor to transmit illuminating light to the light outlet device such that the light outlet device can be moved to adjust the angle of illumination in relation to the endoscope and such that a flexible portion of the light conductor is configured and positioned in order to be elastically reshaped when the light outlet surface is moved.Type: GrantFiled: November 2, 2011Date of Patent: October 28, 2014Assignee: Karl Storz GmbH & Co. KGInventors: Jan Dahmen, Fang Lei
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Publication number: 20140235947Abstract: In an optics tube for an endoscope, a lens arrangement including at least one rod lens is received in the inside of the optics tube, wherein a sleeve is fixed on the at least one rod lens and at least partially encloses the rod lens, and wherein the sleeve is welded to the optics tube. The invention also relates to an endoscope having such an optics tube, and to a method for mounting at least one rod lens in the inside of an optics tube.Type: ApplicationFiled: February 20, 2014Publication date: August 21, 2014Inventors: Jan Dahmen, Walter Vogel
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Publication number: 20140142385Abstract: An endoscope with an adjustable viewing direction includes a shaft, an image transmission device for transmitting an image from a distal end of the endoscope to a proximal end of the endoscope, a hermetically tight sheath around the image transmission device, with a light admission window at the distal end of the endoscope, a manipulating device at the proximal end of the endoscope, a swivel actuation device on the manipulating device for manual adjustment of an angle between the viewing direction and a longitudinal axis of the shaft, a magnetic coupling device for magnetically transmitting a force, parallel to the longitudinal axis of the shaft, between the swivel actuation device and a force transmission device inside the hermetically tight sheath, and a rotation actuation device on the manipulating device for manually rotating the viewing direction about the longitudinal axis of the shaft relative to the manipulating device.Type: ApplicationFiled: November 19, 2013Publication date: May 22, 2014Inventor: Jan Dahmen