Patents by Inventor Stephan Prestel
Stephan Prestel 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: 20230390577Abstract: A system (1) performs a transcutaneous photodynamic therapy (PDT) in an organ (3)/organ segment of an organic body (5) and includes light applicators (9), alight applicators light/power supply unit, a light applicators placement template (39) for a defined orientation, positioning and fixing, and a support point element (100). The light applicators have an insertion section (15) for transcutaneous piercing along a piercing axis (E) into the organ/organ segment, a light-emitting applicator tip (19) at the distal end (13) of the insertion section and a defined fixing point (43) at a proximal distance d from the light-emitting applicator tip. The distance d is identical for each of the individual light applicators. The support point element defines a positionable support point (93), coaxial with the piercing axis, for laterally supporting the respective light applicator. A distal distance f of the support point from the placement template is adjustable.Type: ApplicationFiled: June 2, 2023Publication date: December 7, 2023Inventors: Bernd Claus WEBER, Stephan PRESTEL, Giacomo RIECKERT
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Patent number: 10548622Abstract: An instrument, a medical-endoscopic instrument or technoscope, includes a shank (2) and an instrument head (10), which is arranged at a distal shank end of the shank (2) and is bendable relative thereto via a joint. The instrument head (10) includes a tool with two jaw parts (20, 22) which are pivotable relative to one another and are coupled in each case to two pull cables (70, 72, 76), for the control of the jaw parts (20, 22). These pull cables (70, 72, 76), in the region of the joint, are guided around two deflecting rollers (78, 80, 82, 84, 86, 88, 90, 92). Deflecting roller pairs are arranged on both sides of a middle axis (A) of the instrument. Deflecting rollers (82, 84, 90, 92) of a first deflecting roller pair have a smaller diameter than deflecting rollers (78, 80, 86, 88) of a second deflecting roller pair.Type: GrantFiled: April 28, 2015Date of Patent: February 4, 2020Assignee: RICHARD WOLF GMBHInventor: Stephan Prestel
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Patent number: 10368950Abstract: A drive arrangement for an endoscopic shaft instrument, preferably an instrument which is intended for use in connection with a surgical robot, has a drive arrangement that has an instrument housing (12) on a proximal shaft end. At least one housing shaft (22) is mounted in the instrument housing (12). The shaft is drivingly connected to a traction device which is provided for controlling an instrument head on a distal shaft end. Furthermore, the drive arrangement has a drive unit having at least one drive shaft. The housing shaft (22) can be drivingly connected to said drive shaft. The at least one housing shaft (22) is oriented at an angle to the drive shaft (30) and the drive shaft can be drivingly connected thereto.Type: GrantFiled: November 10, 2014Date of Patent: August 6, 2019Assignee: RICHARD WOLF GMBHInventors: Frank Wehrheim, Alexander Schweigert, Stephan Prestel, Sören Münnig, Matthias Lambertz, Eberhard Körner
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Patent number: 10064679Abstract: An endoscopic shank instrument has a tool carrier which is arranged at a distal shank end, is bendable relative to the shank and carries a tool. The tool includes at least one electrode which is conductively connectable to a voltage source via an electrical lead led through the shank. The lead is formed by a flexible circuit board in the region of the tool carrier and of the bending of the tool carrier.Type: GrantFiled: March 17, 2015Date of Patent: September 4, 2018Assignee: Richard Wolf GmbHInventors: Sören Münnig, Frank Wehrheim, Stephan Prestel, Philipp Eidner
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Publication number: 20170252054Abstract: An instrument, a medical-endoscopic instrument or technoscope, includes a shank (2) and an instrument head (10), which is arranged at a distal shank end of the shank (2) and is bendable relative thereto via a joint. The instrument head (10) includes a tool with two jaw parts (20, 22) which are pivotable relative to one another and are coupled in each case to two pull cables (70, 72, 76), for the control of the jaw parts (20, 22). These pull cables (70, 72, 76), in the region of the joint, are guided around two deflecting rollers (78, 80, 82, 84, 86, 88, 90, 92). Deflecting roller pairs are arranged on both sides of a middle axis (A) of the instrument. Deflecting rollers (82, 84, 90, 92) of a first deflecting roller pair have a smaller diameter than deflecting rollers (78, 80, 86, 88) of a second deflecting roller pair.Type: ApplicationFiled: April 28, 2015Publication date: September 7, 2017Inventor: Stephan PRESTEL
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Patent number: 9700289Abstract: A handle for a medical instrument includes an actuation element, which is arranged on the handle and which is displaceable into at least a first and a second functional position. The actuation element can be moved in a plane transverse to its displacement direction, in each of the first and second functional positions, for carrying out a function. A pivotable actuation lever is arranged in the handle, the actuation lever being coupled in movement to the actuation element for displacing the actuation element into the at least two functional positions.Type: GrantFiled: October 30, 2012Date of Patent: July 11, 2017Assignee: Richard Wolf GmbHInventors: Stephan Prestel, Ernst Falk, Eberhard Körner, Manfred Boebel
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Patent number: 9615846Abstract: An endoscopic instrument includes a shank (2) with an instrument head (9) arranged at the distal shank end (1) and includes a tool with two jaw parts (11, 12). The jaw parts (11, 12) are pivotable relative to one another and can be controlled from the proximal instrument end via a pull elements (5-8) led in the shank (2). At least one jaw part (11, 12) includes two curved disks (36, 37), on which the pull elements (5-8) engages in each case. Two curved disks (36, 37) of a different radial size are provided for each jaw part (11, 12). The radially larger curved disk is arranged closer to the longitudinal middle axis (14) of the tool than the radially smaller curved disk.Type: GrantFiled: July 1, 2013Date of Patent: April 11, 2017Assignee: RICHARD WOLF GMBHInventor: Stephan Prestel
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Publication number: 20160302874Abstract: A drive arrangement for an endoscopic shaft instrument, preferably an instrument which is intended for use in connection with a surgical robot, has a drive arrangement that has an instrument housing (12) on a proximal shaft end. At least one housing shaft (22) is mounted in the instrument housing (12). The shaft is drivingly connected to a traction device which is provided for controlling an instrument head on a distal shaft end. Furthermore, the drive arrangement has a drive unit having at least one drive shaft. The housing shaft (22) can be drivingly connected to said drive shaft. The at least one housing shaft (22) is oriented at an angle to the drive shaft (30) and the drive shaft can be drivingly connected thereto.Type: ApplicationFiled: November 10, 2014Publication date: October 20, 2016Applicant: RICHARD WOLF GMBHInventors: Frank WEHRHEIM, Alexander SCHWEIGERT, Stephan PRESTEL, Sören MÜNNIG, Matthias LAMBERTZ, Eberhard KÖRNER
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Patent number: 9220525Abstract: A medical instrument includes a handle on the proximal end and a shank rotatably arranged on the handle. A tool is arranged on the distal end of the shank. This tool is rotatable relative to the shank. An actuation element is arranged on the handle. The actuation element may be moved into at least two switch positions, wherein in a first switch position the actuation element is coupled in movement to the shank and in a second switch position the actuation element is coupled in movement to the tool.Type: GrantFiled: October 28, 2010Date of Patent: December 29, 2015Assignee: Richard Wolf GmbHInventors: Manfred Boebel, Stephan Prestel, Eberhard Körner, Ernst Falk
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Patent number: 9211135Abstract: An endoscopic instrument includes a rigid hollow shank (2) and a tool (8) at the distal instrument end. The tool (8) is driven in rotation via a drive shaft (14), which is guided within the hollow shank (2). At the distal end of the hollow shank (2), the tool (8) projects out of the hollow shank (2), where it may be angled with respect to the distal end of the hollow shank (2).Type: GrantFiled: July 18, 2008Date of Patent: December 15, 2015Assignee: Richard Wolf GmbHInventors: Eberhard Körner, Franc Schmid, Stephan Prestel
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Publication number: 20150265340Abstract: An endoscopic shank instrument has a tool carrier which is arranged at a distal shank end, is bendable relative to the shank and carries a tool. The tool includes at least one electrode which is conductively connectable to a voltage source via an electrical lead led through the shank. The lead is formed by a flexible circuit board in the region of the tool carrier and of the bending of the tool carrier.Type: ApplicationFiled: March 17, 2015Publication date: September 24, 2015Inventors: Sören Münnig, Frank WEHRHEIM, Stephan PRESTEL, Philipp EIDNER
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Publication number: 20150265355Abstract: An endoscopic instrument for the connection to an operation robot. The endoscopic instrument includes an instrument housing, to which a shank with at least one instrument part arranged at the distal side of the shank connects distally. The instrument part and/or the shank are movable relative to the instrument housing and for this are each actively connected to control. The control can be coupled, via a translatorily movable coupling element coupled thereto and projecting out of the instrument housing, to a linear drive unit which can be connected to the instrument housing at the outer side.Type: ApplicationFiled: March 17, 2015Publication date: September 24, 2015Inventors: Stephan PRESTEL, Sören Münnig, Elmar TEICHTMANN, Frank WEHRHEIM
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Publication number: 20150127045Abstract: An endoscopic instrument includes a shank (2) with an instrument head (9) arranged at the distal shank end (1) and includes a tool with two jaw parts (11, 12). The jaw parts (11, 12) are pivotable relative to one another and can be controlled from the proximal instrument end via a pull elements (5-8) led in the shank (2). At least one jaw part (11, 12) includes two curved disks (36, 37), on which the pull elements (5-8) engages in each case. Two curved disks (36, 37) of a different radial size are provided for each jaw part (11, 12). The radially larger curved disk is arranged closer to the longitudinal middle axis (14) of the tool than the radially smaller curved disk.Type: ApplicationFiled: July 1, 2013Publication date: May 7, 2015Inventor: Stephan Prestel
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Publication number: 20140303607Abstract: A handle for a medical instrument includes an actuation element, which is arranged on the handle and which is displaceable into at least a first and a second functional position. The actuation element can be moved in a plane transverse to its displacement direction, in each of the first and second functional positions, for carrying out a function. A pivotable actuation lever is arranged in the handle, the actuation lever being coupled in movement to the actuation element for displacing the actuation element into the at least two functional positions.Type: ApplicationFiled: October 30, 2012Publication date: October 9, 2014Inventors: Stephan Prestel, Ernst Falk, Eberhard Körner, Manfred Boebel
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Patent number: 8608645Abstract: A stereo-endoscope is provided having a hollow shank with two axially parallel optical channels, which channels run through the hollow shank and respectively form at least a section of an image path to respective oculars of a binocular observation device arranged on the proximal end of the hollow shank. Moreover, the stereo-endoscope includes a camera connection, and one of the optical channels also forms at least one section of an image path to the camera connection.Type: GrantFiled: May 19, 2009Date of Patent: December 17, 2013Assignee: Richard Wolf GmbHInventors: Manfred Boebel, Alexander Frank, Klaus-Peter Hipp, Rudolf Heimberger, Felix Bitrolf, Friedrich Haehnle, Carl-Sebastian Wagner, Stephan Prestel, Gerhard Fritz Buess
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Patent number: 8398674Abstract: A medical instrument includes a hollow shank and an instrument section arranged pivotable to the hollow shank proximate the distal end of this hollow shank. An instrument part is mounted in an axially movable manner in the pivotable instrument section.Type: GrantFiled: September 21, 2010Date of Patent: March 19, 2013Assignee: Richard Wolf GmbHInventor: Stephan Prestel
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Patent number: 8128650Abstract: A medical instrument has a handle arranged at the proximal end, a shank extending distally proceeding from the handle, and a movable jaw part arranged at the distal end of the shank. The shank is designed to be rigid and includes at least one proximal bend region and at least one distal bend region, in which the extension direction of the shank changes. A section of the shank in which the distal bend region is situated may be rotated about the longitudinal axis relative to a section of the shank in which the proximal bend region is situated. The jaw part is rotatable relative to the shank about its distal longitudinal axis at the distal end.Type: GrantFiled: March 19, 2009Date of Patent: March 6, 2012Assignee: Richard Wolf GmbHInventors: Manfred Boebel, Stephan Prestel, Sybille Bruestle, Ernst Falk, Gerhard Fritz Buess
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Patent number: 8114118Abstract: A medical instrument has an instrument insert and an instrument handle, which are detachably connected to one another. An actuation rod of the instrument insert is releasably connectable to a movable grip of the instrument handle via a locking connection. A blocking element is provided which blocks the movable grip when the actuation rod has been released.Type: GrantFiled: December 6, 2004Date of Patent: February 14, 2012Assignee: Richard Wolf GmbHInventors: Frank Knodel, Stephan Prestel, Carl-Sebastian Wagner, Josef Bartolic
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Patent number: 8097006Abstract: A surgical suture instrument including a shank (2) on whose distal end a forceps jaw (4) is formed. The surgical suture instrument comprises a needle guide (30) through the forceps jaw (4). A receiver (40) for the releasable fastening of a needle holder (42) is formed on the shank (2), connected to the needle guide (30) on the proximal side of the needle guide (30).Type: GrantFiled: September 29, 2008Date of Patent: January 17, 2012Assignee: Richard Wolf GmbHInventors: Stephan Prestel, Florian Moser, Rolf Weber
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Publication number: 20110106143Abstract: A medical instrument includes a handle on the proximal end and a shank rotatably arranged on the handle. A tool is arranged on the distal end of the shank. This tool is rotatable relative to the shank. An actuation element is arranged on the handle. The actuation element may be moved into at least two switch positions, wherein in a first switch position the actuation element is coupled in movement to the shank and in a second switch position the actuation element is coupled in movement to the tool.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicant: RICHARD WOLF GMBHInventors: Manfred BOEBEL, Stephan PRESTEL, Eberhard KÖRNER, Ernst FALK