Source: http://www.google.com/patents/US20050222611?dq=6101531
Timestamp: 2017-03-29 19:16:37
Document Index: 303229320

Matched Legal Cases: ['arts 12', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22', 'art 22']

Patent US20050222611 - Bipolar double-hinged instrument - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA bipolar double-hinged instrument (1) has two forceps legs (3, 4), which are supported on a common forceps leg shaft (2) so that they can pivot (Pf2), which are insulated electrically from each other, and which can pivot in opposite directions via respective toggle-lever elements (5, 6, 7, 8) and a...http://www.google.com/patents/US20050222611?utm_source=gb-gplus-sharePatent US20050222611 - Bipolar double-hinged instrumentAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS20050222611 A1Publication typeApplicationApplication numberUS 11/089,905Publication dateOct 6, 2005Filing dateMar 25, 2005Priority dateMar 31, 2004Also published asDE102004015667B3Publication number089905, 11089905, US 2005/0222611 A1, US 2005/222611 A1, US 20050222611 A1, US 20050222611A1, US 2005222611 A1, US 2005222611A1, US-A1-20050222611, US-A1-2005222611, US2005/0222611A1, US2005/222611A1, US20050222611 A1, US20050222611A1, US2005222611 A1, US2005222611A1InventorsDirk WeitkampOriginal AssigneeSutter Medizintechnik GmbhExport CitationBiBTeX, EndNote, RefManPatent Citations (7), Referenced by (26), Classifications (13), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetBipolar double-hinged instrument
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0030] A bipolar double-hinged instrument designated as a whole with 1 is shown in FIGS. 1 to 8 in a preferred embodiment as bipolar double-hinged forceps and has two forceps legs 3, 4 supported on a common forceps leg shaft 2 so that they can pivot (double arrow Pf2). The forceps legs 3, 4 can each pivot in opposite directions through two toggle-lever elements 5, 6 and 7, 8 and a connecting rod 11 that can move in a tubular shaft 9 in the longitudinal direction (double arrow Pf1) and that is attached to the toggle-lever elements 5, 7 via a connecting rod shaft 10 parallel to the forceps leg shaft 2. In this way, the connecting rod 11 can be moved in the pushing or pulling direction (double arrow Pf1) with the help of hand grips 31, 32 attached to the connecting rod at the proximal end of the connecting rod 11. The two forceps legs 3, 4 have different electrical polarities and are insulated from each other electrically, wherein the forceps legs 3, 4 and the toggle-lever elements 5, 6, 7, 8 are made from biocompatible metal. Similarly, the connecting rod 11 is electrically insulated from the electrically differently poled tubular shaft 9 by means of an insulating sleeve 28. [0031] For supplying electrical power to a first forceps leg 3, the connecting rod 11 and the toggle-lever element 5 of the first forceps leg 3 are connected to each other in an electrically conductive way, wherein the toggle-lever element 5 and the toggle-lever element 7 are supported on the connecting rod shaft 10 made from electrically insulating material in the embodiment shown in the figures so that they can rotate and so that the connecting rod shaft 10 passes through these toggle-lever elements 5, 7 perpendicular to the longitudinal direction of the connecting rod 11. The connecting rod shaft 10 can also be electrically insulated in one embodiment that is not described in more detail with the help of an electrically insulating cover at least partially surrounding the connecting rod shaft 10 in the longitudinal direction on the outer side from the connecting rod 11 and the toggle-lever element 5. [0032] To electrically insulate the connecting rod 11 and the toggle-lever element 7 on the connecting rod shaft 10 from each other, there are two connecting rod insulating parts 12, 13 between the outer sides of the connecting rod 11 and the sides of the toggle-lever element 7 facing the connecting rod 11. This can be seen in FIG. 3 and especially clearly in the sectional view of FIG. 8. [0033] The exploded view in FIG. 4 shows that the connecting rod insulating parts are formed by two insulating washers 12, 13, which are arranged on the connecting rod shaft 10. The toggle-lever element 5 here engages to the connecting rod 11 in a slot 14 running in the longitudinal direction of the connecting rod 11 and is supported there on the connecting rod shaft 10. The end of the toggle-lever element 7 facing the connecting rod 11 is divided in two in the shape of a fork and attaches to the connecting rod shaft 10 at the end regions of the electrically insulating connecting rod shaft 10 and is electrically insulated from the connecting rod 11 by the insulating washers 12, 13. Because the tubular shaft 9 has the same electrical polarity as the toggle-lever element 7, making these two adjacent components touch or bringing the two components very close together is possible without negatively affecting the electrical function of the instrument 1 according to the invention. [0034] As FIGS. 2, 3, 5, and 6 show, the toggle-lever element 5 is connected at a toggle-lever hinge 15 to the end of the first forceps leg 3 which forms a second toggle-lever element 6 of the first forceps leg 3 so that it can pivot in an electrically conductive way via a first toggle-lever hinge shaft 16, whereby, on one hand, pivoting of the first forceps leg 3 with the help of the pushing and pulling motion (double arrow Pf1) of the connecting rod 11 is possible and, on the other hand, the electrical current is led to the forceps leg 3. In this way, the toggle-lever element 5 engages in a slot 17 extending in the longitudinal direction of the forceps leg 3 and is there supported on the toggle-lever hinge shaft 16. The first forceps leg 3 is supported on the forceps leg shaft 2 so that it can rotate and for this purpose has a support opening 18, wherein the forceps leg shaft 2 passes through this opening perpendicular to the longitudinal axis of the forceps leg 3. [0035] For supplying electrical energy to the second forceps leg 4, the electrically conductive forceps leg shaft 2 is supported in a support 19, 20 at the distal end of the tubular shaft 9 perpendicular to its longitudinal axis in an electrically conductive and especially rotationally locked way. To electrically insulate the two forceps legs 3, 4 from each other, with these legs being supported on the forceps leg shaft 2 so that they can rotate relative to each other, a forceps leg insulating element and also an insulating sleeve 21 electrically separating the first forceps leg 3 from the forceps leg shaft 2 is provided on the forceps leg shaft 2 between the facing sides of the two forceps legs 3, 4. The sectional view in FIG. 7 and also FIG. 3 shows this particularly clearly. [0036] In FIG. 4, a one-piece insulating molded part 22 forming the forceps leg insulating element can be seen, which is arranged on the forceps leg shaft 2 between the first forceps leg 3 and the second forceps leg 4. The second forceps leg 4 is divided into two in the shape of a fork in the region of a support opening 23, wherein the facing inner sides of its fork projections 24, 25 are covered by the correspondingly U-shaped insulating molded part 22. In this way, the outer contours of the insulating molded part 22 correspond approximately to the outer contours of the fork projections 24, 25, so that the pivoting motions of the forceps legs 3, 4 are not impaired by the insulating molded part 22. [0037] The fork projections 24, 25 form in common a second toggle-lever element 8 of the second forceps leg 4. The end of the first toggle-lever element 7 of the second forceps leg 4 engages between the ends of the toggle-lever element 8, whereby the connecting point of the two toggle-lever elements 7, 8 forms a second toggle-lever hinge 24 for pivoting the second forceps leg 4, as can be seen especially in FIGS. 2 and 3. The two toggle-lever elements 7, 8 are connected to each other at the toggle-lever hinge 24 by a toggle-lever hinge shaft 25 so that they can rotate and in an electrically conductive way. [0038] In the embodiment shown in FIGS. 1 to 8, the insulating molded part 22 completely covers the fork projections 24, 25 forming the toggle-lever element 8, so that the insulating molded part 22 is connected to the toggle-lever hinge shaft 27 at the toggle-lever hinge 26. This increases the positional stability of the insulating molded part 22 at the fork projections 24, 25 through the attachment of the insulating molded part 22 at two shafts (2, 27) at a distance from each other. The insulating effect of the insulating molded part 22 on the toggle-lever hinge 26, however, is not necessary for the function of the bipolar instrument 1 according to the invention, because the second toggle-lever hinge shaft 27, also like the first toggle-lever hinge shaft 16, is electrically conductive and is made especially from biocompatible metal. [0039] As can be seen in FIGS. 2, 4, and 6, the forceps legs 3, 4 are profiled at the forceps inner surfaces 29, 30 in the form of a screen or ribbing, which can engage in each other in the closed state of the forceps legs 3, 4, especially in the opposite sense. Therefore, when, for example, the tissue to be treated is gripped, slipping can be prevented. In addition, an enlargement of the surface of the forceps inner surfaces 27, 28 is achieved, so that the electrical current can be fed especially well into the tissue. [0040] In FIG. 9, an alternative embodiment of the bipolar double-hinged forceps is shown. This embodiment is similar to the embodiment described above, except that insulating washers 22′ have been provided in place of the one-piece insulating molded part 22. The insulating washers 22′ are arranged on the forceps leg shaft 2 between the first forceps leg 3 and the second forceps leg 4. The facing inner sides of the fork projections 24, 25 are covered by the correspondingly insulating washers 22′. Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5352222 *Mar 15, 1994Oct 4, 1994Everest Medical CorporationSurgical scissors with bipolar coagulation featureUS5391166 *Oct 9, 1992Feb 21, 1995Hemostatic Surgery CorporationBi-polar electrosurgical endoscopic instruments having a detachable working endUS5853412 *Mar 5, 1997Dec 29, 1998Aesculap Ag & Co. KgBipolar surgical grasping instrumentUS6238414 *Jan 20, 2000May 29, 2001Jerry R. GriffithsLaparoscopic instrument with parallel actuated jawsUS7014649 *Sep 11, 2003Mar 21, 2006Karl Storz Gmbh & Co. KgMedical instrumentUS20020183784 *Jul 18, 2002Dec 5, 2002Aesculap Ag & Co. KgBipolar grasping instrumentUS20030014052 *Jun 6, 2002Jan 16, 2003Buysse Steven P.Laparoscopic bipolar electrosurgical instrument* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7645277Dec 22, 2005Jan 12, 2010Salient Surgical Technologies, Inc.Fluid-assisted medical deviceUS7651494Jan 29, 2003Jan 26, 2010Salient Surgical Technologies, Inc.Fluid-assisted medical deviceUS7727232Feb 4, 2005Jun 1, 2010Salient Surgical Technologies, Inc.Fluid-assisted medical devices and methodsUS7811282Nov 14, 2005Oct 12, 2010Salient Surgical Technologies, Inc.Fluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereofUS7815634Dec 22, 2003Oct 19, 2010Salient Surgical Technologies, Inc.Fluid delivery system and controller for electrosurgical devicesUS7951148Feb 6, 2004May 31, 2011Salient Surgical Technologies, Inc.Electrosurgical device having a tissue reduction sensorUS7998140Mar 30, 2004Aug 16, 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methodsUS8038670Dec 22, 2005Oct 18, 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methodsUS8048070Feb 11, 2003Nov 1, 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices, systems and methodsUS8075557Oct 30, 2007Dec 13, 2011Salient Surgical Technologies, Inc.Fluid-assisted medical devices and methodsUS8361068Oct 12, 2010Jan 29, 2013Medtronic Advanced Energy LlcFluid-assisted electrosurgical devices, electrosurgical unit with pump and methods of use thereofUS8475455Oct 28, 2003Jul 2, 2013Medtronic Advanced Energy LlcFluid-assisted electrosurgical scissors and methodsUS8926608 *Sep 25, 2008Jan 6, 2015Karl Storz Gmbh & Co. KgBipolar medical instrumentUS9072538 *Nov 29, 2011Jul 7, 2015Olympus Medical Systems Corp.Treatment tool for endoscopeUS9078684Mar 23, 2011Jul 14, 2015Intuitive Surgical Operations, Inc.Methods for two-piece end-effectors of robotic surgical toolsUS9333004 *Nov 29, 2005May 10, 2016Karl Storz Gmbh & Co. KgMedical instrument with a contoured axle pinUS9492233 *Mar 23, 2011Nov 15, 2016Intuitive Surgical Operations, Inc.Apparatus with two-piece end-effectors for robotic surgical toolsUS9526482 *Apr 18, 2013Dec 27, 2016Karl Storz Gmbh & Co. KgMedical instrument and method for fitting together a medical instrumentUS20060224182 *Nov 29, 2005Oct 5, 2006Hubert BrucklerMedical instrument with a contoured axle pinUS20090082768 *Sep 25, 2008Mar 26, 2009Uwe BacherBipolar Medical InstrumentUS20110238064 *Mar 23, 2011Sep 29, 2011Intuitive Surgical Operations, Inc.Apparatus with Two-Piece End-Effectors for Robotic Surgical ToolsUS20120203063 *Nov 29, 2011Aug 9, 2012Olympus Medical Systems Corp.Treatment tool for endoscopeUS20130304063 *Apr 18, 2013Nov 14, 2013Uwe BacherMicro-Invasive Medical InstrumentUS20130310814 *Apr 18, 2013Nov 21, 2013Uwe BacherMedizinisches Instrument und Verfahren zum Zusammensetzen eines medizinischen InstrumentsUS20140246471 *Mar 1, 2013Sep 4, 2014Ethicon Endo-Surgery, Inc.Articulatable surgical instruments with conductive pathways for signal communicationWO2011042584A1 *Oct 6, 2010Apr 14, 2011Universidad De CantabriaInstrument for endoscopic surgery* Cited by examinerClassifications U.S. Classification606/205International ClassificationA61B17/44, A61B17/28, A61B17/42, A61B18/14Cooperative ClassificationA61B18/1445, A61B2018/126, A61B2017/2926, A61B17/29, A61B2017/2939, A61B2018/146European ClassificationA61B18/14F2, A61B17/29Legal EventsDateCodeEventDescriptionMar 25, 2005ASAssignmentOwner name: SUTTER MEDIZINTECHNIK GMBH, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEITKAMP, DIRK;REEL/FRAME:016429/0159Effective date: 20050308Sep 9, 2005ASAssignmentOwner name: SUTTER MEDIZINTECHNIK GMBH, GERMANYFree format text: TO CORRECT ASSIGNEE S ADDRESS ON REEL 016429 FRAME 0159.;ASSIGNOR:WEITKAMP, DIRK;REEL/FRAME:016768/0042Effective date: 20050325RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services