Patents by Inventor Volker Bartels
Volker Bartels 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: 8182478Abstract: The invention relates to a bipolar electrosurgical instrument comprising a handle and a tool head. In the case of bipolar instruments, at least two mutually separate conducting paths must be provided within the instrument to supply the bipolar tool head. Reliable electrical insulation of these conducting paths relative to one another is often associated with a high cost in known electrosurgical instruments, such as scissors and clamps, since these instruments have a crossed joint. The present invention solves this problem in that the tool head is connected to the handle without crossing over itself.Type: GrantFiled: February 12, 2007Date of Patent: May 22, 2012Assignee: ERBE Elektromedizin GmbHInventor: Volker Bartel
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Patent number: 7815638Abstract: An applicator for an electrosurgical instrument, alternatively for argon-plasma coagulation and cutting, also argon-supported. The applicator includes a gas and high frequency current terminal, a cutting electrode attached to a gas and high frequency current supply pipe, an insulating cap for detachably fastening the applicator on the instrument handle, and an insulating casing tube displaceable relative to the applicator common longitudinal axis for exposing or covering the cutting electrode and surrounding the gas and high frequency current supply pipe over a longitudinal section, and a collar or an external right-angle bend at the casing tube distal end. At least one radially surrounding gas-sealing inhibiting device is arranged between an inside of the casing tube and an outside of the gas and high frequency current supply pipe, allowing that a respective position be frictionally fixed at any location of the displacement path of the casing tube.Type: GrantFiled: August 4, 2003Date of Patent: October 19, 2010Assignee: ERBE Elektromedizin GmbHInventors: Guenter Farin, Klaus Fischer, Volker Bartel
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Publication number: 20090209959Abstract: The invention relates to a bipolar electrosurgical instrument comprising a handle and a tool head. In the case of bipolar instruments, at least two mutually separate conducting paths must be provided within the instrument to supply the bipolar tool head. Reliable electrical insulation of these conducting paths relative to one another is often associated with a high cost in known electrosurgical instruments, such as scissors and clamps, since these instruments have a crossed joint. The present invention solves this problem in that the tool head is connected to the handle without crossing over itself.Type: ApplicationFiled: February 12, 2007Publication date: August 20, 2009Inventor: Volker Bartel
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Patent number: 7166106Abstract: The invention relates to a bipolar clamp (10) comprising two scissor members (12, 14), which are joined together mechanically by means of an insulating screw or similar pivot joint (16) about which they can rotate with respect to one another, but are electrically insulated from one another, electrode components (18, 20) at distal ends (22, 24) of the scissor members (12, 14) for grasping tissue and conducting an electrical current through the tissue to cause. coagulation, handle devices (26, 28) at proximal ends (30, 32) of the scissor members (12, 14), current-supply means (34, 40, 42) at the proximal end (32) of one scissor member (14) ratchets (36, 38) between the pivot joint (16) and the proximal ends (32, 34) to lock, the scissor members (12, 14) to one another in a closed position.Type: GrantFiled: June 4, 2002Date of Patent: January 23, 2007Assignee: Erbe Elektromedizin GmbHInventors: Volker Bartel, Jürgen Hiller
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Publication number: 20060122595Abstract: An applicator for an electrosurgical instrument, alternatively for argon-plasma coagulation and cutting, also argon-supported. The applicator includes a gas and high frequency current terminal, a cutting electrode attached to a gas and high frequency current supply pipe, an insulating cap for detachably fastening the applicator on the instrument handle, and an insulating casing tube displaceable relative to the applicator common longitudinal axis for exposing or covering the cutting electrode and surrounding the gas and high frequency current supply pipe over a longitudinal section, and a collar or an external right-angle bend at the casing tube distal end. At least one radially surrounding gas-sealing inhibiting device is arranged between an inside of the casing tube and an outside of the gas and high frequency current supply pipe, allowing that a respective position be frictionally fixed at any location of the displacement path of the casing tube.Type: ApplicationFiled: August 4, 2003Publication date: June 8, 2006Inventors: Guenter Farin, Klaus Fischer, Volker Bartel
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Publication number: 20040153020Abstract: The invention relates to a bipolar clamp (10) comprising two scissor members (12, 14), which are joined together mechanically by means of an insulating screw or similar pivot joint (16) about which they can rotate with respect to one another, but are electrically insulated from one another,Type: ApplicationFiled: December 4, 2003Publication date: August 5, 2004Inventors: Volker Bartel, Jurgen Hiller
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Patent number: 6464703Abstract: The invention relates to a surgical instrument for minimally invasive surgery, in particular in the form of pincers or forceps. The instrument comprises at least two gripping elements, which for the purpose of gripping can be moved like forceps towards one another in a gripping direction or apart from one another in the opposite direction. At least one gripping element comprises at one end a first limb and a second limb, and at least one flexible bending region. The limbs are spaced apart from one another in the gripping direction with at least the first limb of each gripping element disposed within a guide sleeve and movable in a longitudinal direction of the guide sleeve, relative to the second limb of the gripping element in such a way that during a relative movement of the limbs with respect to one another the associated gripping element can be moved in the gripping direction.Type: GrantFiled: May 2, 2001Date of Patent: October 15, 2002Assignee: Elektromedizin GmbHInventor: Volker Bartel
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Patent number: 6391027Abstract: The invention concerns a surgical instrument preferably for high-frequency surgery, which is designed for simple operation. For this purpose, by means of an operating device consisting of a movable handle and a grip handle, the housing 8 of the instruments of the electrode 5 moves longitudinally, through the motion of the thumb, so that the electrode 6 can be brought into working position or an APC mode can be selected. Through spring force, for instance, upon activation of a catch button or by setting aside the instrument, the electrode can automatically be retracted into the housing 8 or the housing 8 can be brought to a position surrounding the electrode 5.Type: GrantFiled: August 9, 1999Date of Patent: May 21, 2002Assignee: Erbe Elektromedizin GmbHInventors: Günter Farin, Klaus Fischer, Volker Bartel
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Publication number: 20010041893Abstract: The invention relates to a surgical instrument for minimally invasive surgery, in particular in the form of pincers or forceps. The instrument comprises at least two gripping elements, which for the purpose of gripping can be moved like forceps towards one another in a gripping direction or apart from one another in the opposite direction. At least one gripping element comprises at one end a first limb and a second limb, and at least one flexible bending region. The limbs are spaced apart from one another in the gripping direction with at least the first limb of each gripping element disposed within a guide sleeve and movable in a longitudinal direction of the guide sleeve, relative to the second limb of the gripping element in such a way that during a relative movement of the limbs with respect to one another the associated gripping element can be moved in the gripping direction.Type: ApplicationFiled: May 2, 2001Publication date: November 15, 2001Inventor: Volker Bartel
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Patent number: 5949897Abstract: A sound reproduction device such as a headphone with active noise compensation has a housing and a transducer for converting electrical signals to sound waves is disposed within the housing. The transducer has a diaphragm for separating the volume (V.sub.2) in front of the diaphragm from the volume (V.sub.1) to the rear of the diaphragm. The transducer diaphragm and rear volume (V.sub.1) have a determined compliance. The sound reproduction device includes active noise compensation components for reducing unwanted noise at the output of the transducer. The diaphragm has a compliance (N.sub.M) which is less than the compliance (N.sub.1) of the rear volume (V.sub.1). The diaphragm is preferably constructed from a plurality of layers. In a further preferred arrangement, a damping element is disposed very close to the rear side of the diaphragm. A preferred construction for optimizing the voice coil is described.Type: GrantFiled: March 2, 1998Date of Patent: September 7, 1999Assignee: Sennheiser electronic KGInventors: Volker Bartels, Burkhard Markmann
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Patent number: 5809156Abstract: A sound reproduction device such as a headphone with active noise compensation has a housing and a transducer for converting electrical signals to sound waves is disposed within the housing. The transducer has a diaphragm for separating the volume (V.sub.2) in front of the diaphragm from the volume (V.sub.1) to the rear of the diaphragm. The transducer diaphragm and rear volume (V.sub.1) have a determined compliance. The sound reproduction device includes active noise compensation components for reducing unwanted noise at the output of the transducer. The diaphragm has a compliance (N.sub.M) which is less than the compliance (N.sub.1) of the rear volume (V.sub.1). The diaphragm is preferably constructed from a plurality of layers. In a further preferred arrangement, a damping element is disposed very close to the rear side of the diaphragm. A preferred construction for optimizing the voice coil is described.Type: GrantFiled: November 20, 1995Date of Patent: September 15, 1998Assignee: Sennheiser electronic KGInventors: Volker Bartels, Burkhard Markmann
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Patent number: 5561262Abstract: A projectile assembly includes a spin-stabilized carrier projectile having a carrier casing and a base at one end of the casing; and a sub-ammunition assembly composed of a plurality of sub-ammunition components stacked to form a column. One of the components is an end component adjoining the base. A component surface of the end component is oriented towards and is in engagement with the base surface. At least two of the components are sub-ammunition projectiles. An arrangement maintains a frictional lock between the base surface and the component surface of the end component. According to the arrangement a portion of the base surface and a portion of the component surface of the end component have high coefficients of friction.Type: GrantFiled: August 18, 1995Date of Patent: October 1, 1996Assignee: Rheinmetall Industrie GmbHInventors: Volker Bartels, Klaus D. Karius
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Patent number: 5239927Abstract: A deceleration device for a submunition unit includes a cartridge releasably attached to the submunition unit. A releasable package including at least one pocket is disposed in the cartridge and is connected to the cartridge by a packaging line. An auxiliary parachute and a rotation parachute are disposed in the cartridge, with at least the rotation parachute being accommodated in the at least one pocket of the releasable package and the auxiliary parachute being disposed in a pocket separate from the at least one pocket. The auxiliary parachute is connected to the cartridge and the rotation parachute is connected to the submunition unit. A deployment mechanism causes the auxiliary parachute to be deployed in advance of the rotation parachute after the cartridge is released from the submunition unit and the rotation parachute to be deployed after the cartridge is decelerated by the auxiliary parachute for decelerating the submunition unit.Type: GrantFiled: June 17, 1992Date of Patent: August 31, 1993Assignee: Rheinmetall GmbHInventors: Gunter Frye, Karl-Heinz Vogt, Volker Bartels