Patents by Inventor Ludwig Bonnet

Ludwig Bonnet 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: 8545448
    Abstract: A trocar sleeve includes a distal tubular section, a section which connects to the distal tubular section at a proximal side of the distal tubular section and which is widened proximally, and at least one spiral with a circular outer contour, arranged helically on a periphery of the distal tubular section. The distal tubular section includes a rounded polygonal cross section so that maximal degrees of freedom of the applied instruments result.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 1, 2013
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Ludwig Bonnet, Eberhard Koerner, Roland Raakow, Georg Liesaus
  • Patent number: 8152794
    Abstract: An endoscopic instrument includes a shank (2) having at least one guide channel (4, 4?) for a laser probe (8), and a flexible narrowing provided in a section of the guide channel (4) connecting to its distal end. The flexible narrowing allows a clear diameter of the guide channel (4, 4?) to be changed in at least one direction.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: April 10, 2012
    Assignee: Richard Wolf GmbH
    Inventors: Frank Knodel, Ludwig Bonnet, Stefan Gille
  • Patent number: 8118729
    Abstract: An endoscopic instrument with a hollow shank which on the proximal side is provided with a connection part with at least one suction connection and/or rinsing connection, with a coupling part for fixing a working insert. The coupling part is mounted rotatably with respect to the connection part and the coupling part is detachably connected to the connection part. The endoscopic instrument further includes an annular axial seal which is arranged between the connection part and the coupling part.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: February 21, 2012
    Assignee: Richard Wolf GmbH
    Inventors: Klaus-Peter Hipp, Ludwig Bonnet, Michael Fritz, Thomas Ernst, Hubertus Riedmiller
  • Publication number: 20110160672
    Abstract: A trocar sleeve includes a distal tubular section, a section which connects to the distal tubular section at a proximal side of the distal tubular section and which is widened proximally, and at least one spiral with a circular outer contour, arranged helically on a periphery of the distal tubular section. The distal tubular section includes a rounded polygonal cross section so that maximal degrees of freedom of the applied instruments result.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: RICHARD WOLF GMBH
    Inventors: Manfred BOEBEL, Ludwig BONNET, Eberhard KOERNER, Roland RAAKOW, Georg LIESAUS
  • Publication number: 20070135807
    Abstract: An endoscopic instrument includes a shank (2) having at least one guide channel (4, 4?) for a laser probe (8), and a flexible narrowing provided in a section of the guide channel (4) connecting to its distal end. The flexible narrowing allows a clear diameter of the guide channel (4, 4?) to be changed in at least one direction.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 14, 2007
    Applicant: RICHARD WOLF GMBH
    Inventors: Frank KNODEL, Ludwig BONNET, Stefan GILLE
  • Publication number: 20060063975
    Abstract: An endoscopic instrument with a hollow shank which on the proximal side is provided with a connection part with at least one suction connection and/or rinsing connection, with a coupling part for fixing a working insert. The coupling part is mounted rotatably with respect to the connection part. The endoscopic instrument furthermore includes means for the detachable connection of the coupling part and the connection part, as well as an annular axial seal which is arranged between the connection part and the coupling part.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 23, 2006
    Inventors: Klaus-Peter Hipp, Ludwig Bonnet, Michael Fritz, Thomas Ernst, Hubertus Riedmiller
  • Publication number: 20050267448
    Abstract: An endoscopic instrument, having a shank (2) envisaged for introduction into a body opening (8), has on its outer surface raised parts (10) lying at the corner points of a polygon, so that an essentially linear contact is formed between the shank (2) and the body.
    Type: Application
    Filed: April 27, 2005
    Publication date: December 1, 2005
    Inventors: Ludwig Bonnet, Klaus-Peter Hipp, Thomas Ernst, Michael Fritz
  • Patent number: 6824544
    Abstract: In the inside of an outer shank there are formed a supply channel and a discharge channel which extend parallel to the outer shank. The suction channel has a larger cross section than the supply channel.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: November 30, 2004
    Assignee: Richard Wolf GmbH
    Inventors: Manfred Boebel, Ludwig Bonnet, Sybille Brustle
  • Publication number: 20030181906
    Abstract: In the inside of an outer shank there are formed a supply channel and a discharge channel which extend parallel to the outer shank. The suction channel has a larger cross section than the supply channel.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 25, 2003
    Applicant: Richard Wolf GmbH
    Inventors: Manfred Boebel, Ludwig Bonnet, Sybille Brustle
  • Patent number: 6482219
    Abstract: The stricture scalpel serves for endoscopic use and consists of a blade with a cutter and a stem which is inserted into the distal end of a shank and here is unreleasably connected to this. The shank consists of stainless steel and the blade of a ceramic material.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: November 19, 2002
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet
  • Patent number: 6482205
    Abstract: The forceps serves for coagulating and severing the body tissue of a patient by way of a forceps jaw which consists of two jaw parts, is actuatable with a proximate handle for opening and closing and is located at the distal forceps end, wherein on the distal end section of a first jaw part a hook projects towards the second jaw part, said hook fixing the tissue, grasped between the jaw parts given a closed forceps jaw, in the forceps jaw. On the first jaw part additionally there is provided a proximally running web which proceeds directly from the hook and projects in the direction of the second jaw part.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: November 19, 2002
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet
  • Patent number: 6447509
    Abstract: The transurethral dissection electrode has a shank and an electrode head located at the distal shank end. The electrode head essentially consists of at least one distally tapering truncated cone body with two oppositely lying flattenings.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 10, 2002
    Assignee: Richard Wolf GmbH
    Inventors: Ludwig Bonnet, Rolf Muschter
  • Patent number: 5827274
    Abstract: An electrode for vaporizing tissue is disclosed which has a head provided with projections and recesses and which is supported by at least one externally insulated electrically conducting branch. In order to provide a better and more effective electrode with regard to vaporization power and which can be easily cleaned and cheaply manufactured, the head which is rigidly fixed to the branch comprises essentially of part of a rotationally symmetrical body.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: October 27, 1998
    Assignee: Richard Wolf GmbH
    Inventors: Ludwig Bonnet, Manfred Boebel
  • Patent number: 5685853
    Abstract: A device for the injection of substances into human tissue by means of an injection cannula (2.0) is axially adjustable along an endoscope shaft (1.0). The cannula is proximally connected to a coupling (1.8). Allocated to the endoscope shaft (1.0) is a guide tube (1.2) for the injection cannula (2.0), which is inserted into this guide tube (1.2) from the proximal end of the device and is detachably connected with the coupling (1.8). In addition, the unit including the guide tube (1.2) and the injection cannula (2.0) is axially adjustable relative to the endoscope shaft (1.0) by means of a handle (5) that can be operated with one hand.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: November 11, 1997
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet
  • Patent number: 5674179
    Abstract: An endoscope for examining the interior of a canal or hollow organ. The endoscope includes an optical system and a channel for an auxiliary instrument such as a laser probe. The distal end of the endoscope shaft and that of the optical system each have a groove-shaped recess so that, upon pulling back of the auxiliary instrument into the endoscope, the probe head, guided by the edge of the recess of the endoscope shaft, is deflected laterally downward of the optical system so as not to impede the field of view of the optical system.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: October 7, 1997
    Assignee: Richard Wolff GmbH
    Inventors: Ludwig Bonnet, Steve Morganstern
  • Patent number: 5509892
    Abstract: An endoscopic instrument, particularly a continuous flushing cysto-urethroscope, has an oval cross-sectioned outer shaft and an inner shaft having a contour formed by two semi-circular arcs with different diameters, the arcs having their openings facing each other and connected by two approximately straight sides. The inner shaft is so dimensioned that it contacts the inside of the outer shaft at three points in a linear manner along essentially the entire shaft length, thus forming three free spaces between the inner shaft and the outer shaft for conveying rinsing or flushing fluids. The free spaces may be closed off at their distal ends with flanges projecting from the outer surface of the inner shaft.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: April 23, 1996
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet
  • Patent number: 5423795
    Abstract: A resectoscope has a shaft and a lock body which is slidable along the shaft and to which the proximal end portion of a resection electrode can be fixed. A handle is provided for displacing the lock body and thus the electrode along the shaft. The handle consists of a first portion connected to the lock body and projecting radially outwardly of the lock body and a second portion connected to the shaft, for engagement by a thumb of the user of the resectoscope. The first portion of the handle is formed as a disc provided with gripping aids for the user's fingers.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: June 13, 1995
    Assignee: Richard Wolf GmbH
    Inventors: Rainer Eckert, Manfred Dangelmaier, Ralf Breining, Johannes Solf, Ludwig Bonnet
  • Patent number: 5312418
    Abstract: An instrument for lithotripsy having a probe which can be vibrated longitnally by means of a drive and which extends through a guide channel in the shaft of an endoscope and is supported and guided externally of the shaft by a guide element aligned on the corresponding guide channel, is described. The guide element receives the housing of the probe drive also serving as a handle proximally, and its distal end can be releasably attached to a rinsing and probing attachment which can be connected to the proximal end of the endoscope and is provided with valves. The guide element is designed so that the valves can be actuated unimpeded.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: May 17, 1994
    Assignee: Richard Wolf GmbH, A Corporation of the Federal Republic of Germany
    Inventor: Ludwig Bonnet
  • Patent number: 5307804
    Abstract: In an endoscope with a camera objective, in particular a video camera objective, coupled to the eyepiece cup of the endoscope at its proximal end, the objective is mounted so that it is free to rotate on the proximal end of the eyepiece cup. The camera objective and its camera head have a center of gravity which is offset from the axis of rotation of the objective so that the objective maintains its orientation if the endoscope is rotated about its longitudinal axis, whereby such rotation of the endoscope does not affect the endoscopic picture displayed on a monitor of the video camera.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: May 3, 1994
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet
  • Patent number: 5135524
    Abstract: In a resectoscope, the inner barrel situated in the outer barrel, of the resectoscope is provided at the distal end, which projects beyond the outer barrel, with an insulating element to strengthen it, which element is provided in its outer surface for the length of an enlargement of the outer barrel with a part-cylindrical recess which produces at the distal end an enlarged outlet space, to which the liquid from the bladder flows in sufficient quantity via longitudinal slots in the enlargement of the outer barrel and is then extracted at the proximal end of the barrels.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: August 4, 1992
    Assignee: Richard Wolf GmbH
    Inventor: Ludwig Bonnet