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).

  • Publication number: 20230390577
    Abstract: 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: Application
    Filed: June 2, 2023
    Publication date: December 7, 2023
    Inventors: Bernd Claus WEBER, Stephan PRESTEL, Giacomo RIECKERT
  • Patent number: 10548622
    Abstract: 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: Grant
    Filed: April 28, 2015
    Date of Patent: February 4, 2020
    Assignee: RICHARD WOLF GMBH
    Inventor: Stephan Prestel
  • Patent number: 10368950
    Abstract: 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: Grant
    Filed: November 10, 2014
    Date of Patent: August 6, 2019
    Assignee: RICHARD WOLF GMBH
    Inventors: Frank Wehrheim, Alexander Schweigert, Stephan Prestel, Sören Münnig, Matthias Lambertz, Eberhard Körner
  • Patent number: 10064679
    Abstract: 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: Grant
    Filed: March 17, 2015
    Date of Patent: September 4, 2018
    Assignee: Richard Wolf GmbH
    Inventors: Sören Münnig, Frank Wehrheim, Stephan Prestel, Philipp Eidner
  • Publication number: 20170252054
    Abstract: 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: Application
    Filed: April 28, 2015
    Publication date: September 7, 2017
    Inventor: Stephan PRESTEL
  • Patent number: 9700289
    Abstract: 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: Grant
    Filed: October 30, 2012
    Date of Patent: July 11, 2017
    Assignee: Richard Wolf GmbH
    Inventors: Stephan Prestel, Ernst Falk, Eberhard Körner, Manfred Boebel
  • Patent number: 9615846
    Abstract: 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: Grant
    Filed: July 1, 2013
    Date of Patent: April 11, 2017
    Assignee: RICHARD WOLF GMBH
    Inventor: Stephan Prestel
  • Publication number: 20160302874
    Abstract: 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: Application
    Filed: November 10, 2014
    Publication date: October 20, 2016
    Applicant: RICHARD WOLF GMBH
    Inventors: Frank WEHRHEIM, Alexander SCHWEIGERT, Stephan PRESTEL, Sören MÜNNIG, Matthias LAMBERTZ, Eberhard KÖRNER
  • Patent number: 9220525
    Abstract: 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: Grant
    Filed: October 28, 2010
    Date of Patent: December 29, 2015
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Stephan Prestel, Eberhard Körner, Ernst Falk
  • Patent number: 9211135
    Abstract: 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: Grant
    Filed: July 18, 2008
    Date of Patent: December 15, 2015
    Assignee: Richard Wolf GmbH
    Inventors: Eberhard Körner, Franc Schmid, Stephan Prestel
  • Publication number: 20150265340
    Abstract: 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: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Sören Münnig, Frank WEHRHEIM, Stephan PRESTEL, Philipp EIDNER
  • Publication number: 20150265355
    Abstract: 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: Application
    Filed: March 17, 2015
    Publication date: September 24, 2015
    Inventors: Stephan PRESTEL, Sören Münnig, Elmar TEICHTMANN, Frank WEHRHEIM
  • Publication number: 20150127045
    Abstract: 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: Application
    Filed: July 1, 2013
    Publication date: May 7, 2015
    Inventor: Stephan Prestel
  • Publication number: 20140303607
    Abstract: 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: Application
    Filed: October 30, 2012
    Publication date: October 9, 2014
    Inventors: Stephan Prestel, Ernst Falk, Eberhard Körner, Manfred Boebel
  • Patent number: 8608645
    Abstract: 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: Grant
    Filed: May 19, 2009
    Date of Patent: December 17, 2013
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Alexander Frank, Klaus-Peter Hipp, Rudolf Heimberger, Felix Bitrolf, Friedrich Haehnle, Carl-Sebastian Wagner, Stephan Prestel, Gerhard Fritz Buess
  • Patent number: 8398674
    Abstract: 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: Grant
    Filed: September 21, 2010
    Date of Patent: March 19, 2013
    Assignee: Richard Wolf GmbH
    Inventor: Stephan Prestel
  • Patent number: 8128650
    Abstract: 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: Grant
    Filed: March 19, 2009
    Date of Patent: March 6, 2012
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Stephan Prestel, Sybille Bruestle, Ernst Falk, Gerhard Fritz Buess
  • Patent number: 8114118
    Abstract: 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: Grant
    Filed: December 6, 2004
    Date of Patent: February 14, 2012
    Assignee: Richard Wolf GmbH
    Inventors: Frank Knodel, Stephan Prestel, Carl-Sebastian Wagner, Josef Bartolic
  • Patent number: 8097006
    Abstract: 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: Grant
    Filed: September 29, 2008
    Date of Patent: January 17, 2012
    Assignee: Richard Wolf GmbH
    Inventors: Stephan Prestel, Florian Moser, Rolf Weber
  • Publication number: 20110106143
    Abstract: 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: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Applicant: RICHARD WOLF GMBH
    Inventors: Manfred BOEBEL, Stephan PRESTEL, Eberhard KÖRNER, Ernst FALK