Patent application number | Description | Published |
20090112246 | Surgical Instrument - In order to improve a surgical instrument comprising a clamping device for holding and/or clamping tissue, a severing device for severing tissue and a handling device for actuating the clamping device and/or the severing device, the clamping device comprising at least one clamping member having a clamping surface and a clamping member opening, and the severing device comprising a severing member movable at least partially into the clamping member opening, so that short circuits can be reliably prevented between the at least one clamping member and the severing member, it is proposed that a severing member guide device be provided for guiding the severing member in the clamping member opening and for maintaining a spacing from inner side surfaces of the clamping member opening. | 04-30-2009 |
20100268036 | Surgical retraction device - The invention relates to a surgical retraction device which comprises at least two support arms which are moveable relative to each other and are held directly or indirectly upon one another and upon which at least one surgical restraining element for restraining bones or body tissue is or can be arranged, and which also comprises a support arm positioning mechanism for moving and changing a position of the at least two support arms relative to each other, it is proposed that the support arm positioning mechanism should comprise a coarse adjustment mechanism and at least one fine adjustment mechanism with which a position of the at least two support arms relative to each other can be changed mutually independently. | 10-21-2010 |
20110152861 | Surgical System For Connecting Body Tissue - In order to so improve a surgical system for connecting body tissue, comprising a surgical instrument having two tool elements movable relative to each other, each of which comprises a high-frequency electrode, the high-frequency electrodes, in an approach position of the tool elements, defining a minimum distance from each other, lying opposite each other and facing each other, that an overstretching of connections of parts of body tissue, in particular, made by a flow of current, is avoided when removing the surgical instrument, it is proposed that the instrument comprise a shaft at the distal end of which at least a first one of the tool elements is arranged or formed, and that a second tool element be adapted to be moved from an operating position, in which it is adapted for movement into the approach position, into a removal position and/or vice versa, a surface area of a perpendicular projection of the second tool element onto a projection plane extending perpendicularly to the shaft direction in the region of the second tool element being smaller in the removal position than in the operating position. | 06-23-2011 |
20120323234 | SURGICAL SYSTEM AND CONTROL PROCESS FOR A SURGICAL INSTRUMENT AND PROCESS FOR CONNECTING BODILY TISSUES - The invention relates to improving a surgical system for connecting bodily tissues, comprising a surgical instrument having two tool elements displaceable relative to each other, each comprising an HF electrode defining a minimum distance from each other, opposite each other, and facing one another in an approach setting of the tool elements, wherein in order for simple and secure connecting of the tissue parts to be connected to each other, the invention proposes that at least one of the HF electrodes is divided into at least two electrode segments and that the at least two electrode segments are electrically insulated from each other. | 12-20-2012 |
20130035683 | SURGICAL SYSTEM FOR CONNECTING BODILY TISSUE AND PROCESS FOR CUTTING PROTRUDING TISSUE - The invention relates to improving a surgical system for bonding bodily tissue, comprising a surgical instrument having a bonding device for bonding bodily tissue, said bonding device comprising two tool elements displaceable relative to each other, wherein the instrument comprises a cutting device having a cutting element for cutting through tissue, and the cutting element is displaceably disposed relative to at least one of the tool elements, such that the cutting device is implemented in the form of an HF cutting device, wherein the cutting element comprises a cutting edge defining a cutting plane at an angle relative to a longitudinal axis defined by the instrument in the region of the bonding device. | 02-07-2013 |
20130090645 | SURGICAL SYSTEM FOR CONNECTING BODY TISSUE PARTS - A surgical system that connects biological tissue includes a) a surgical instrument with two tool elements movable in relation to one another and in each case including an electrode, which electrodes, in a coming-together position of the tool elements preferably define a minimum distance from one another, lie opposite one another and face one another, and b) a medically compatible material assisting connection of the tissue. | 04-11-2013 |
20130338660 | RF SEALING INSTRUMENT - A bipolar RF sealing instrument includes two instrument branches which are movable relative to one another at least to an open and a closed position, and an instrument handle with two handle units, each associated with a respective instrument branch and coupled for manually operating the instrument branches and for applying to the instrument branches a predetermined closing force at the closed position, a first of the two instrument branches having a terminal for an external RF generator and the second instrument branch adapted to be electrically coupled via an instrument-internal power contact with the first instrument branch. The power contact may be a spring contact for contact closure at a closure position. In addition or alternatively, an instrument-internal control switch is present and only activated when the predetermined closing force is reached, to enable the supply of electric current from an external RF generator to the instrument branch(es). | 12-19-2013 |
20140058388 | SURGICAL SYSTEM FOR BONDING BODY TISSUE AND CONTROL METHOD FOR SAID SURGICAL SYSTEM - A surgical system for bonding body tissue includes a surgical instrument having tool elements movable relative to each other, each of which includes an HF electrode defining a minimum distance from each other, being opposed to each other and facing each other in an approximating position of the tool elements so as to bond body tissue held between the tool elements, and including a cutting element for transecting and/or resecting body tissue, the cutting element being adapted to be brought from a tissue bonding position, in which body tissue can be bonded to the tool elements and in which the cutting element cannot contact body tissue, into a cutting position such that faulty operation of the system is minimized. The instrument includes a means for retaining the cutting element in the tissue bonding position. An improved control method for a surgical system for bonding body tissue is also described. | 02-27-2014 |
20140094790 | ELECTROSURGICAL INSTRUMENT - A surgical instrument includes an elongated shaft, with components arranged in the shaft. The elongated shaft is slightly curved. Arranged on a proximal end of the surgical instrument is an actuation device in the form of a lever mechanism and rotary knob. A force transmission element in the form of a plastic hollow section is arranged in the shaft. The force transmission element is a plastic section designed for transmitting compressive and tensile forces. The plastic section is provided with a plurality of longitudinally extending channels. Therefore, the plastic section does not only serve as a force transmission element, but electric lines and a pull-push shaft may additionally extend in the channels. The longitudinal channels may be used for supplying cooling media for the electrodes or the thermo-fusion device or for feeding agents promoting wound repair. The plastic section is electrically insulating, so that the risk of short-circuits is reduced. | 04-03-2014 |
20140309634 | ANASTOMOSIS DEVICE WITH COLLAPSIBLE DISTAL HEAD ELEMENT - A surgical instrument for bonding body tissue includes a shank and first and second tool elements which are movable relative to each other and include a respective electrode. The electrodes define a minimum distance from each other, are opposed to each other and face each other in an approximating position of the tool elements. The first tool element is arranged or formed at the distal end of the shank, so that a mechanical load of anastomoses of body tissue parts produced by current flow is minimized when removing the surgical instrument. The second tool element is adapted to be brought from an operating position, in which it can be brought into the approximating position, into a removing position, in which a peripheral withdrawing line defined by the electrode of the second tool element is shorter than a peripheral approximating line defined by the electrode in the approximating position. | 10-16-2014 |
20140309635 | ELECTROSURGICAL INSTRUMENT - An electrosurgical instrument includes a proximal end and a distal end having a jaw member assembly at the distal end including a first jaw member and a second jaw member movable relative thereto. The jaw members can be transferred relative to each other from an opening position into a gripping position in which they are arranged to be closer to each other than in the opening position. Each jaw member has at least one electrode connectable to an electric power source and electrodes of both jaw members being adapted to interact for sealing body tissue held between the jaw members in the gripping position, actuating means for transferring the jaw members from the opening position into the gripping position and means for limiting the closing width of the jaw members, when they are transferred from the opening position into the gripping position. | 10-16-2014 |
20140350549 | TFT COAGULATION SAFEGUARD - A medical TFT instrument of the bipolar design includes at least two electrodes held by electrode carriers movable relative to each other which can be charged with HF current via a respective feed line. A safety switch mechanism arranged in the area of the electrode carriers and interconnected in at least one of the feed lines is additionally provided which, upon transfer of at least one of the electrode carriers into the out-of-function/situation, is brought into an OFF or disconnect position, whereby a HF current supply to the electrode associated with this feed line is disconnected. | 11-27-2014 |
20140371743 | ELECTROSURGICAL INSTRUMENT AND JAW PART THEREFOR - An electrosurgical instrument including a jaw part made up of mutually movable instrument legs which have facing sides on which one or more electrode areas are arranged/formed in each case, the movement of the instrument legs relative to each other being able to be limited by at least one first spacer acting on proximal end portions of the instrument legs and at least one second spacer acting on distal end portions of the instrument legs. At least one of the spacers on at least one electrode is manufactured from an electrically conductive material and is connected to the electrode in electroconductive fashion. Furthermore, the spacer cooperates with a local spacer abutment surface which is made of a non-conductive material and arranged in electrically insulating manner on at least one opposing electrode. | 12-18-2014 |
20150088131 | MEDICAL TFT INSTRUMENT COMPRISING A PIVOTABLE ELECTRODE SUPPORT - A manually operable HF instrument in bipolar construction includes a jaw part having two electrode legs which can be moved relative to each other like pincers or scissors, and an instrument handle for operating and activating the jaw part. A separate electrode mount is articulated on at least one electrode leg of the jaw part so as to be able to pivot relative to it, an electrode in turn being elastically/pliably installed on the electrode mount. | 03-26-2015 |