|Publication number||US702472 A|
|Publication date||Jun 17, 1902|
|Filing date||Aug 8, 1898|
|Priority date||Aug 8, 1898|
|Publication number||US 702472 A, US 702472A, US-A-702472, US702472 A, US702472A|
|Inventors||Louis M Pignolet|
|Original Assignee||Louis M Pignolet|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (182), Classifications (2) |
|External Links: USPTO, USPTO Assignment, Espacenet|
US 702472 A
No. 702,472. Patented June 17, I902. L. M. PIGNOLET.
(Application filed Aug. 8, 1898.)
2 Shoe s-Shaa-t l.
WITNESSES d $116M IN VE N TOR l3 Louis/W. PI/yn /ef A77 ENE).
No. 702,472; Patented June l7, I902,
. L. m. PIGNOLET.
(Application filed Aug. 8, 1898.)
model. 2 Sheets-Sheet z;
WITNESSES VEN r01? w: norms wzrzns co" ruwoumcw WASHINGTON. n. a
LOUIS M. PIGNOLET, OF
ORANGE, NEW JERSEY.
SPECIFICATION forming part of Letters Patent No. 702,472, dated June 17, 1902.
Serial No. 688,072. (hit-tic] To all whom it may concern;
Be it known that I, LOUIS M. PIGNOLET, a citizen of the United States of America, and a resident of Orange, county of Essex, and State of New Jersey, have invented a new and useful Improvement in Surgical Forceps, of which the following is a specification.
The invention relates to the construction of a surgical instrument for removing tumors, for closing arteries, and for similar purposes where it becomes necessary to check the issue of blood. In the case of a tumor, for instance, the jaws of the forceps grasp the pedicle, one of the jaws is electrically heated, and the tissues and muscles become desiccated and the duct effectually sealed.
The invention embodies means for carrying out the conception of electrically heating the jaw or jaws instead of heating them by means of a soldering-iron, as heretofore sometimes practiced.
Referring to the drawings, Figure 1 is a front elevation of the complete instrument having its jaws partially open. Fig. 2 is a similar View of the socket for connecting the forceps to the source of electric energy. Fig. 8 is a side elevation of that shown in Fig. 1, except for a small portion at the upper end broken away. Fig. 4- is a perspective view of one of the jaws of the instrument by itself, this jaw being the one which contains the electric heating devices. Fig. 5is plan of the other jaw, being that one which contains the corrugations or teeth. Fig. 6 is a cross-section of one of the handles at the line a l) in Fig. 1 looking toward the top of the page. The insulator and conductors are omitted. Fig. 7 is a cross-section of one of the shanks at the line 0 d, including also the cross-section of the conductor and its conduit. Fig. 8 is a cross-section of the same element at the line efin Fig. 1. The conductor is, however, omitted from the groove which is cut on the shank. Fig. 9 illustrates the instrument in use in the operation of desiccating the pedicle of the tumor, all but the jaws being omitted. Fig. 10 shows the desiccated, and crumpled stump, from which the tumor has been cut off, the part represented in this figure that was shown in Fig. 9 being turned around. Fig. 11 shows the inside of the electrically-heated jaw, with the cover removed and also the plaster insulator omitted. Fig.
12 is a longitudinal section of the jaw which is electrically equipped, the section being at line :1 pin Fig. 11. Fig. 13 is a view, partly in section, of the electric terminals of the instrument. Figs. 11, 12, and 13 are about three times the scale of the other figures, which are about full size.
The dotted portions should be considered as representinginsulation, and the solid black as indicating the same material.
The forceps and adjuncts consist of the combination of the handles 1, having shanks 2 and 2', which are pivoted together at 3, a toothed jaw l on the shank 2, the teeth being but little larger than those on a coarse file, a jaw 5, having at its outer end the turned-up extension 6 at such an angle as to overlap the free end of the jaw i when the forceps are closed, and having the tines or prongs 7 lo cated, respectively, on opposite edges of the jaw at or near the inner end of the jaw, and both the said extension 6 and extensions 7 being arcs about the pivot 3, an electric conduit 8, of metal, inclosiug an electric insulated conductor 0, passing from the interior of the jaw 5, passing along a groove 10 in the shank 2, to which the conduit is soldered, being soldered also to the catch 11, which forms part of the shank 2, a metallic terminal block 12 obliquely attached to the handle 1 of the shank 2 and being at a suflicient angle to hold the conduit away from the table when the instrument is laid down, (for if not at an angle the conduit would soon wear through by repeated jams and knocks by throwing upon the table by the surgeon,) and other elements, mostly internal, as now to be set forth.
123 is a cover soldered to the back of the jaw 5, and the same is shown removed in Fig. ll.
1%. is a sheet of mica, micanite, or similar plate of insulation placed in the bottom of the recessed jaw and fitting snugly therein for separating the resistance 9 from the metal of the jaw. One end of the resistanceconductor 9, which is of platinum, but may be of German silver or other material, of such size as to be heated by the current while the conductor 9 remains cool, is electrically connected to the free end of the jaw 5 conveniently by solder, so as to form a hermetical closure at the joint, while the other end is soldered to the conductor 9, so as to be a continuation of it. The heater-conductor 9 is zigzag, so that the maximum length may be inclosed in the rather small allotment of space in the jaw and is retained in position and at the same time effectively insulated from sin-rounding parts and its heat accun1u lated by the use of some plaster-of-paris,which upon hardening in the space between the conductor 9 and the cover 13 completely fills said space. Care should be taken at this end of the conductor 9, as well as at the other end, to make the exit of the same perfectly hermetical, so that the instrument maybe sterilized without injuring the non-metallic materials of the device, and so, also, that the blood poison may not touch anything other than metal.
The terminal-block 12 has two holes, one of which, 18, is threaded to receive the electric terminal 15, which became one terminal of the heater-conductor 9 because both the terminal 15 and the conductor 9 are electrically connected to the metallic shank 2. The terminal 16 is held in an insulator-tube 17, which fits tightly the other hole 18 in the block 12. The constructor should remember to make this tubular insulator of some hard substance, like ivory, to withstand sterilizing, and the joint should be tight to prevent leakage for similar reasons. The conductor 9 in the tube 8 is soldered at its end tightly and hermetically in the end of the tubular terminal 16 at 19. Consequently no liquids nor steam can enter the tube 16.
20 is a shoulder upon the tube 16 to adjust the distance to which the tube 16 is thrust into the tube 17. The insulation 21 around the conductor 9 should preferably extend all the way from the tube 16 to the jaw 5that is, throughout the length of the tube 8.
The operation will be explained in regard to its use on a tumor. An electric current is caused to How from the battery 22 through the conductors 23 and 24, thence to the sockets 25 and 26, and thence when they are applied to the terminals 15 and 16 through the conductor 9, the conductor for heating 9, the shank 2, and the terminal 15, and consequently, the wire 9 becomes hot in about two or three minutes, and the flesh, tissue, and muscle, one or all firmly compressed be tween the two jaws, which are held together by the catch 11, and the teeth 11 on the shank 2, are bound together into a dry corrugated and sealed joint,which retains all blood and other liquids throughout its length, the material of the tissues being cut off to scparate the tumor 27 along the edge of the jaws before the forceps are opened. The best results are obtained at a temperature of 180 or 190 Fahrenheit, which is sufficiently high to desiccate the tissues without charring them. Then thoroughly desiccated, the tissues are of a whitish color and are translucent. The operating surgeon or electrician should be moderately careful in regulating the current by means of the rheostat 28, through which the current passes. A few tests on raw meat will enable him to ascertain from the readings of the ampere meter 29 what is the strength of current which gives the desired temperature. The indications of the amperemeter will enable the current to be regulated to suit whenever the forceps are used subsequently to the operation, though it is possible to dispense with the ampere-meter to j udge of the temperature by touching the forceps; but this requires considerable experience on the part of the operator, and the results are not so certain.
The object of the prongs 7 and the extension 6 is to prevent the tissues from spreading too thinly over the surface of the jaws 4; and 5. Itis found advisable to apply a coating of sterilized Vaseline over said surface, so that the desiccated tissues will not stick to the jaws and perhaps tear more or less in pulling it off. of the jaws.
At the point where the shank 2 joins the jaw 5 the conductor extends through a groove 10 in the shank and enters a hole in the said jaw. The joint is tight and is hermetically sealed also with solder. The cover 13 fits tightly over the recessed jaw, and the joint should be carefully soldered, so as to be water-tight and make the joint hermetically closed. The joint between the conduit 8 and the terminal block 12 should be made hermetically tight conveniently by soldering.
I claim as my invention 1. In a pair of surgical forceps, the combination of an electric resistance contained within one of the jaws, a terminal-block on one of the handles, an electric conductorpassing from the resistance within the jaw,to and through the said block, and a tube of material impervious to fluids surrounding the said conductor, and having fluid-tight joints with both the interior of the jaw and the interior of the said block.
2. In a pair of surgical forceps, the combination of a hollow jaw, an insulated electric conductor therein extending along the outside of the shank of said forceps, a metallic tube containing said conductor and extending from said hollow jaw to near the end of said conductor along and fastened to the said shank, insulation within the tube and surrounding said conductor, an enlarged end 16, on said conductor out of contact with said metallic tube, and insulation 17, surrounding said conductor and between said tube and said enlarged end.
3. Surgical forceps consisting of the combination of shanks, pivoted together, handles thereon, an electrical resistance carried by one of the jaws and insulated therefrom, a terminal block 12, attached to one of the handles obliquely to the plane of the handles,
a tubular conduit secured in a groove formed along one shank and extending from said jaw to said block, and containing an insulated conductor which is connected to said resistance, the other end of which is electrically connected to the jaw, aterminal 16 for receiving a socket 20 andforminga continuation of said conductor, and a second terminal 15 extending from said block for receiving a socket 25,both of said sockets being adapted to be connected up with a source of electricity.
4. In a pair of surgical forceps, the combination of a hollow jaw having a hole at one end where it joins the shank an insulated electric resistance within the jaw, a metallic conduit hermetically passing through the hole and carrying an insulated electric conductor connected to one end of said resistance, the other end of the resistance being connected to the jaw, a terminal-block upon the handle of the forceps and having a passage-way for said conductor,and hermetically connected to said tube, and a terminal forming the end of said conductor, sealed hermetically within said passage-way, and insulated from said block, the other electric terminal of the forceps being attached electrically to said block, which is connected metallically to said hollow jaw.
5 In a pair of surgical forceps having a hollow jaw, an insulated electric resistance therein, one end being connected hermetically and electrically to the jaw and the other to an electric conductorpassing hermetically through and being insulated from said jaw.
6. A pair of surgical forceps consisting of the combination of jaws and handles pivoted together, one of the jaws being provided with a cover applied, to the back of the jaw, an insulating-sheet lying inside of the said jaw, a bare conductor lying on and along the said insulator, a second insulator on said condoctor, a tube hermetically connected to the jaw and communicating with its interior, and connected with the same and containing an extension of said conductor, the other end of which is connected electrically with the jaw, as and for the purpose set forth.
7. In a pair of electrical surgical forceps, a terminal-block formed upon a handle thereof, and having a hole extending through the same, lined with an electrical insulating tube, a tubular electric conductor 16, fitting hermetically within one end of the said insulating-lining, a conduit 8, terminatingin hermetical contact with the said terminal-block, and a wire, 9, passing through the said conduit and extending into the said lining, and terminatingin the conductor,16, hermetically and in electric contact therewith.
Signed this 5th day of August, 1898.
LOUIS M. PIGNOLET. n 8.]
JAMEs J. BRADLEY, CHARLES S. OLAPP.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3934589 *||May 24, 1974||Jan 27, 1976||Dragerwerk Aktiengesellschaft||Surgical instrument for sterilizing women by ligature of tubes|
|US4213460 *||Sep 18, 1978||Jul 22, 1980||Weiner Israel H||Tick removing forceps|
|US4702246 *||Jul 24, 1985||Oct 27, 1987||Cedric R. Ellis||Heating instrument for treating a deformed nail|
|US5026370 *||Jul 2, 1986||Jun 25, 1991||Lottick Edward A||Electrocautery instrument|
|US5116332 *||Feb 8, 1990||May 26, 1992||Lottick Edward A||Electrocautery hemostat|
|US5792137 *||Oct 27, 1995||Aug 11, 1998||Lacar Microsystems, Inc.||Coagulating microsystem|
|US6050996 *||Nov 12, 1997||Apr 18, 2000||Sherwood Services Ag||Bipolar electrosurgical instrument with replaceable electrodes|
|US6152923 *||Apr 28, 1999||Nov 28, 2000||Sherwood Services Ag||Multi-contact forceps and method of sealing, coagulating, cauterizing and/or cutting vessels and tissue|
|US6187003||Nov 12, 1997||Feb 13, 2001||Sherwood Services Ag||Bipolar electrosurgical instrument for sealing vessels|
|US6228083||Nov 14, 1997||May 8, 2001||Sherwood Services Ag||Laparoscopic bipolar electrosurgical instrument|
|US6267761||Sep 9, 1997||Jul 31, 2001||Sherwood Services Ag||Apparatus and method for sealing and cutting tissue|
|US6277117||Oct 23, 1998||Aug 21, 2001||Sherwood Services Ag||Open vessel sealing forceps with disposable electrodes|
|US6334861||Aug 17, 1999||Jan 1, 2002||Sherwood Services Ag||Biopolar instrument for vessel sealing|
|US6451018||Jun 9, 2000||Sep 17, 2002||Sherwood Services Ag||Laparoscopic bipolar electrosurgical instrument|
|US6458130||Apr 3, 2001||Oct 1, 2002||Sherwood Services Ag||Endoscopic bipolar electrosurgical forceps|
|US6511480||Oct 22, 1999||Jan 28, 2003||Sherwood Services Ag||Open vessel sealing forceps with disposable electrodes|
|US6585735||Jul 21, 2000||Jul 1, 2003||Sherwood Services Ag||Endoscopic bipolar electrosurgical forceps|
|US6626901||Aug 13, 1999||Sep 30, 2003||The Trustees Of Columbia University In The City Of New York||Electrothermal instrument for sealing and joining or cutting tissue|
|US6682528||Sep 17, 2002||Jan 27, 2004||Sherwood Services Ag||Endoscopic bipolar electrosurgical forceps|
|US6726686||Apr 1, 2002||Apr 27, 2004||Sherwood Services Ag||Bipolar electrosurgical instrument for sealing vessels|
|US6860880||Nov 12, 2002||Mar 1, 2005||The Trustees Of Columbia University In The City Of New York||Electrothermal instrument for sealing and joining or cutting tissue|
|US6887240||Oct 18, 1999||May 3, 2005||Sherwood Services Ag||Vessel sealing wave jaw|
|US6908463||Apr 20, 2001||Jun 21, 2005||The Trustees Of Columbia University In The City Of New York||Electrothermal device for coagulating, sealing and cutting tissue during surgery|
|US6932810||Nov 14, 2001||Aug 23, 2005||Sherwood Services Ag||Apparatus and method for sealing and cutting tissue|
|US6960210||Sep 13, 2002||Nov 1, 2005||Sherwood Services Ag||Laparoscopic bipolar electrosurgical instrument|
|US7033354||Dec 4, 2003||Apr 25, 2006||Sherwood Services Ag||Electrosurgical electrode having a non-conductive porous ceramic coating|
|US7083618||Apr 5, 2002||Aug 1, 2006||Sherwood Services Ag||Vessel sealer and divider|
|US7090673||Jan 22, 2002||Aug 15, 2006||Sherwood Services Ag||Vessel sealer and divider|
|US7101371||Jun 25, 2002||Sep 5, 2006||Dycus Sean T||Vessel sealer and divider|
|US7101372||Apr 6, 2001||Sep 5, 2006||Sherwood Sevices Ag||Vessel sealer and divider|
|US7101373||Apr 6, 2001||Sep 5, 2006||Sherwood Services Ag||Vessel sealer and divider|
|US7118570||Apr 6, 2001||Oct 10, 2006||Sherwood Services Ag||Vessel sealing forceps with disposable electrodes|
|US7118587||Apr 6, 2001||Oct 10, 2006||Sherwood Services Ag||Vessel sealer and divider|
|US7131970||Nov 17, 2004||Nov 7, 2006||Sherwood Services Ag||Open vessel sealing instrument with cutting mechanism|
|US7131971||Feb 21, 2006||Nov 7, 2006||Sherwood Services Ag||Vessel sealer and divider|
|US7135020||Apr 6, 2001||Nov 14, 2006||Sherwood Services Ag||Electrosurgical instrument reducing flashover|
|US7147638||Apr 29, 2004||Dec 12, 2006||Sherwood Services Ag||Electrosurgical instrument which reduces thermal damage to adjacent tissue|
|US7150097||Jun 13, 2003||Dec 19, 2006||Sherwood Services Ag||Method of manufacturing jaw assembly for vessel sealer and divider|
|US7150749||Sep 29, 2004||Dec 19, 2006||Sherwood Services Ag||Vessel sealer and divider having elongated knife stroke and safety cutting mechanism|
|US7156846||Jun 13, 2003||Jan 2, 2007||Sherwood Services Ag||Vessel sealer and divider for use with small trocars and cannulas|
|US7160298||Apr 6, 2001||Jan 9, 2007||Sherwood Services Ag||Electrosurgical instrument which reduces effects to adjacent tissue structures|
|US7160299||Apr 28, 2004||Jan 9, 2007||Sherwood Services Ag||Method of fusing biomaterials with radiofrequency energy|
|US7179258||Apr 7, 2004||Feb 20, 2007||Sherwood Services Ag||Bipolar electrosurgical instrument for sealing vessels|
|US7195631||Sep 9, 2004||Mar 27, 2007||Sherwood Services Ag||Forceps with spring loaded end effector assembly|
|US7207990||Jun 29, 2005||Apr 24, 2007||Sherwood Services Ag||Laparoscopic bipolar electrosurgical instrument|
|US7223265||Feb 16, 2006||May 29, 2007||Sherwood Services Ag||Electrosurgical electrode having a non-conductive porous ceramic coating|
|US7241296||Dec 15, 2003||Jul 10, 2007||Sherwood Services Ag||Bipolar electrosurgical instrument for sealing vessels|
|US7252667||Jun 22, 2004||Aug 7, 2007||Sherwood Services Ag||Open vessel sealing instrument with cutting mechanism and distal lockout|
|US7255697||Aug 31, 2006||Aug 14, 2007||Sherwood Services Ag||Vessel sealer and divider|
|US7267677||Oct 30, 2002||Sep 11, 2007||Sherwood Services Ag||Vessel sealing instrument|
|US7270660||Jun 29, 2005||Sep 18, 2007||Sherwood Services Ag||Apparatus and method for sealing and cutting tissue|
|US7270664||May 5, 2006||Sep 18, 2007||Sherwood Services Ag||Vessel sealing instrument with electrical cutting mechanism|
|US7276068||Sep 2, 2004||Oct 2, 2007||Sherwood Services Ag||Vessel sealing instrument with electrical cutting mechanism|
|US7329256||Dec 23, 2005||Feb 12, 2008||Sherwood Services Ag||Vessel sealing instrument|
|US7329257||Sep 3, 2003||Feb 12, 2008||Olympus Optical Co., Ltd.||Medical treatment instrument|
|US7367976||Nov 15, 2004||May 6, 2008||Sherwood Services Ag||Bipolar forceps having monopolar extension|
|US7377920||May 5, 2005||May 27, 2008||Sherwood Services Ag||Laparoscopic bipolar electrosurgical instrument|
|US7384420||May 19, 2004||Jun 10, 2008||Sherwood Services Ag||Vessel sealer and divider|
|US7384421||Sep 30, 2005||Jun 10, 2008||Sherwood Services Ag||Slide-activated cutting assembly|
|US7435249||Apr 6, 2001||Oct 14, 2008||Covidien Ag||Electrosurgical instruments which reduces collateral damage to adjacent tissue|
|US7442193||Nov 20, 2003||Oct 28, 2008||Covidien Ag||Electrically conductive/insulative over-shoe for tissue fusion|
|US7442194||May 7, 2007||Oct 28, 2008||Covidien Ag||Bipolar forceps having monopolar extension|
|US7445621||May 7, 2007||Nov 4, 2008||Covidien Ag||Bipolar forceps having monopolar extension|
|US7458972||Mar 27, 2007||Dec 2, 2008||Covidien Ag||Electrosurgical electrode having a non-conductive porous ceramic coating|
|US7473253||Apr 6, 2001||Jan 6, 2009||Covidien Ag||Vessel sealer and divider with non-conductive stop members|
|US7481810||May 7, 2007||Jan 27, 2009||Covidien Ag||Bipolar forceps having monopolar extension|
|US7491201||May 14, 2004||Feb 17, 2009||Covidien Ag||Tissue sealer with non-conductive variable stop members and method of sealing tissue|
|US7491202||Mar 31, 2005||Feb 17, 2009||Covidien Ag||Electrosurgical forceps with slow closure sealing plates and method of sealing tissue|
|US7500975||Oct 3, 2005||Mar 10, 2009||Covidien Ag||Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument|
|US7510556||Nov 24, 2004||Mar 31, 2009||Coviden Ag||Vessel sealing instrument|
|US7513898||Jan 16, 2008||Apr 7, 2009||Covidien Ag||Vessel sealing instrument|
|US7540872||Sep 19, 2005||Jun 2, 2009||Covidien Ag||Articulating bipolar electrosurgical instrument|
|US7553312||Dec 21, 2007||Jun 30, 2009||Covidien Ag||Vessel sealing instrument|
|US7582087||Apr 6, 2001||Sep 1, 2009||Covidien Ag||Vessel sealing instrument|
|US7594916||Nov 22, 2005||Sep 29, 2009||Covidien Ag||Electrosurgical forceps with energy based tissue division|
|US7597693||Jun 13, 2003||Oct 6, 2009||Covidien Ag||Vessel sealer and divider for use with small trocars and cannulas|
|US7628791||Aug 19, 2005||Dec 8, 2009||Covidien Ag||Single action tissue sealer|
|US7628792||Sep 22, 2005||Dec 8, 2009||Covidien Ag||Bilateral foot jaws|
|US7641653||May 4, 2006||Jan 5, 2010||Covidien Ag||Open vessel sealing forceps disposable handswitch|
|US7655007||Dec 18, 2006||Feb 2, 2010||Covidien Ag||Method of fusing biomaterials with radiofrequency energy|
|US7686804||Jan 10, 2006||Mar 30, 2010||Covidien Ag||Vessel sealer and divider with rotating sealer and cutter|
|US7686827||Oct 21, 2005||Mar 30, 2010||Covidien Ag||Magnetic closure mechanism for hemostat|
|US7708735||Jul 19, 2005||May 4, 2010||Covidien Ag||Incorporating rapid cooling in tissue fusion heating processes|
|US7744615||Jul 18, 2006||Jun 29, 2010||Covidien Ag||Apparatus and method for transecting tissue on a bipolar vessel sealing instrument|
|US7753909||Apr 29, 2004||Jul 13, 2010||Covidien Ag||Electrosurgical instrument which reduces thermal damage to adjacent tissue|
|US7766910||Nov 9, 2006||Aug 3, 2010||Tyco Healthcare Group Lp||Vessel sealer and divider for large tissue structures|
|US7771425||Feb 6, 2006||Aug 10, 2010||Covidien Ag||Vessel sealer and divider having a variable jaw clamping mechanism|
|US7776036||Mar 13, 2003||Aug 17, 2010||Covidien Ag||Bipolar concentric electrode assembly for soft tissue fusion|
|US7776037||Jul 7, 2006||Aug 17, 2010||Covidien Ag||System and method for controlling electrode gap during tissue sealing|
|US7789878||Sep 29, 2006||Sep 7, 2010||Covidien Ag||In-line vessel sealer and divider|
|US7799026||Nov 13, 2003||Sep 21, 2010||Covidien Ag||Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion|
|US7799028||Sep 26, 2008||Sep 21, 2010||Covidien Ag||Articulating bipolar electrosurgical instrument|
|US7811283||Oct 8, 2004||Oct 12, 2010||Covidien Ag||Open vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety|
|US7819872||Sep 29, 2006||Oct 26, 2010||Covidien Ag||Flexible endoscopic catheter with ligasure|
|US7828798||Mar 27, 2008||Nov 9, 2010||Covidien Ag||Laparoscopic bipolar electrosurgical instrument|
|US7837685||Jul 13, 2005||Nov 23, 2010||Covidien Ag||Switch mechanisms for safe activation of energy on an electrosurgical instrument|
|US7846158||May 5, 2006||Dec 7, 2010||Covidien Ag||Apparatus and method for electrode thermosurgery|
|US7846161||Sep 29, 2006||Dec 7, 2010||Covidien Ag||Insulating boot for electrosurgical forceps|
|US7857812||Dec 18, 2006||Dec 28, 2010||Covidien Ag||Vessel sealer and divider having elongated knife stroke and safety for cutting mechanism|
|US7877852||Sep 19, 2008||Feb 1, 2011||Tyco Healthcare Group Lp||Method of manufacturing an end effector assembly for sealing tissue|
|US7877853||Sep 19, 2008||Feb 1, 2011||Tyco Healthcare Group Lp||Method of manufacturing end effector assembly for sealing tissue|
|US7879035||Nov 8, 2006||Feb 1, 2011||Covidien Ag||Insulating boot for electrosurgical forceps|
|US7887535||Aug 17, 2004||Feb 15, 2011||Covidien Ag||Vessel sealing wave jaw|
|US7887536||Aug 19, 2009||Feb 15, 2011||Covidien Ag||Vessel sealing instrument|
|US7896878||Mar 12, 2009||Mar 1, 2011||Coviden Ag||Vessel sealing instrument|
|US7909823||Jan 17, 2006||Mar 22, 2011||Covidien Ag||Open vessel sealing instrument|
|US7922718||Oct 12, 2006||Apr 12, 2011||Covidien Ag||Open vessel sealing instrument with cutting mechanism|
|US7922953||Sep 28, 2006||Apr 12, 2011||Covidien Ag||Method for manufacturing an end effector assembly|
|US7931649||Feb 14, 2007||Apr 26, 2011||Tyco Healthcare Group Lp||Vessel sealing instrument with electrical cutting mechanism|
|US7935052||Feb 14, 2007||May 3, 2011||Covidien Ag||Forceps with spring loaded end effector assembly|
|US7947041||Aug 19, 2009||May 24, 2011||Covidien Ag||Vessel sealing instrument|
|US7951149||Oct 17, 2006||May 31, 2011||Tyco Healthcare Group Lp||Ablative material for use with tissue treatment device|
|US7951150||Feb 22, 2010||May 31, 2011||Covidien Ag||Vessel sealer and divider with rotating sealer and cutter|
|US7955332||Sep 21, 2005||Jun 7, 2011||Covidien Ag||Mechanism for dividing tissue in a hemostat-style instrument|
|US7963965||May 10, 2007||Jun 21, 2011||Covidien Ag||Bipolar electrosurgical instrument for sealing vessels|
|US8016820||May 29, 2009||Sep 13, 2011||The Trustees Of Columbia University In The City Of New York||Electrothermal instrument for sealing and joining or cutting tissue|
|US8016827||Oct 9, 2008||Sep 13, 2011||Tyco Healthcare Group Lp||Apparatus, system, and method for performing an electrosurgical procedure|
|US8034052||Nov 1, 2010||Oct 11, 2011||Covidien Ag||Apparatus and method for electrode thermosurgery|
|US8070746||May 25, 2007||Dec 6, 2011||Tyco Healthcare Group Lp||Radiofrequency fusion of cardiac tissue|
|US8123743||Jul 29, 2008||Feb 28, 2012||Covidien Ag||Mechanism for dividing tissue in a hemostat-style instrument|
|US8128624||May 30, 2006||Mar 6, 2012||Covidien Ag||Electrosurgical instrument that directs energy delivery and protects adjacent tissue|
|US8142473||Oct 3, 2008||Mar 27, 2012||Tyco Healthcare Group Lp||Method of transferring rotational motion in an articulating surgical instrument|
|US8147489||Feb 17, 2011||Apr 3, 2012||Covidien Ag||Open vessel sealing instrument|
|US8162973||Aug 15, 2008||Apr 24, 2012||Tyco Healthcare Group Lp||Method of transferring pressure in an articulating surgical instrument|
|US8192433||Aug 21, 2007||Jun 5, 2012||Covidien Ag||Vessel sealing instrument with electrical cutting mechanism|
|US8211105||May 7, 2007||Jul 3, 2012||Covidien Ag||Electrosurgical instrument which reduces collateral damage to adjacent tissue|
|US8215182||Apr 25, 2008||Jul 10, 2012||Tyco Healthcare Group Lp||Apparatus and method for measuring pressure between jaw members|
|US8241282||Sep 5, 2008||Aug 14, 2012||Tyco Healthcare Group Lp||Vessel sealing cutting assemblies|
|US8251996||Sep 23, 2008||Aug 28, 2012||Tyco Healthcare Group Lp||Insulating sheath for electrosurgical forceps|
|US8257352||Sep 7, 2010||Sep 4, 2012||Covidien Ag||Bipolar forceps having monopolar extension|
|US8257387||Aug 15, 2008||Sep 4, 2012||Tyco Healthcare Group Lp||Method of transferring pressure in an articulating surgical instrument|
|US8267935||Apr 4, 2007||Sep 18, 2012||Tyco Healthcare Group Lp||Electrosurgical instrument reducing current densities at an insulator conductor junction|
|US8267936||Sep 23, 2008||Sep 18, 2012||Tyco Healthcare Group Lp||Insulating mechanically-interfaced adhesive for electrosurgical forceps|
|US8298228||Sep 16, 2008||Oct 30, 2012||Coviden Ag||Electrosurgical instrument which reduces collateral damage to adjacent tissue|
|US8298232||Mar 24, 2009||Oct 30, 2012||Tyco Healthcare Group Lp||Endoscopic vessel sealer and divider for large tissue structures|
|US8303582||Sep 15, 2008||Nov 6, 2012||Tyco Healthcare Group Lp||Electrosurgical instrument having a coated electrode utilizing an atomic layer deposition technique|
|US8303586||Feb 10, 2009||Nov 6, 2012||Covidien Ag||Spring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument|
|US8317787||Aug 28, 2008||Nov 27, 2012||Covidien Lp||Tissue fusion jaw angle improvement|
|US8333765||Jun 4, 2012||Dec 18, 2012||Covidien Ag||Vessel sealing instrument with electrical cutting mechanism|
|US8361071||Aug 28, 2008||Jan 29, 2013||Covidien Ag||Vessel sealing forceps with disposable electrodes|
|US8361072||Nov 19, 2010||Jan 29, 2013||Covidien Ag||Insulating boot for electrosurgical forceps|
|US8366709||Dec 27, 2011||Feb 5, 2013||Covidien Ag||Articulating bipolar electrosurgical instrument|
|US8382754||Jan 26, 2009||Feb 26, 2013||Covidien Ag||Electrosurgical forceps with slow closure sealing plates and method of sealing tissue|
|US8394095||Jan 12, 2011||Mar 12, 2013||Covidien Ag||Insulating boot for electrosurgical forceps|
|US8394096||Apr 11, 2011||Mar 12, 2013||Covidien Ag||Open vessel sealing instrument with cutting mechanism|
|US8425504||Nov 30, 2011||Apr 23, 2013||Covidien Lp||Radiofrequency fusion of cardiac tissue|
|US8454602||May 4, 2012||Jun 4, 2013||Covidien Lp||Apparatus, system, and method for performing an electrosurgical procedure|
|US8469956||Jul 21, 2008||Jun 25, 2013||Covidien Lp||Variable resistor jaw|
|US8469957||Oct 7, 2008||Jun 25, 2013||Covidien Lp||Apparatus, system, and method for performing an electrosurgical procedure|
|US8486107||Oct 20, 2008||Jul 16, 2013||Covidien Lp||Method of sealing tissue using radiofrequency energy|
|US8523898||Aug 10, 2012||Sep 3, 2013||Covidien Lp||Endoscopic electrosurgical jaws with offset knife|
|US8535312||Sep 25, 2008||Sep 17, 2013||Covidien Lp||Apparatus, system and method for performing an electrosurgical procedure|
|US8540711||Jul 10, 2007||Sep 24, 2013||Covidien Ag||Vessel sealer and divider|
|US8551088||Apr 1, 2009||Oct 8, 2013||Applied Medical Resources Corporation||Electrosurgical system|
|US8551091||Mar 30, 2011||Oct 8, 2013||Covidien Ag||Vessel sealing instrument with electrical cutting mechanism|
|US8562598||Apr 1, 2009||Oct 22, 2013||Applied Medical Resources Corporation||Electrosurgical system|
|US8568411||Mar 31, 2009||Oct 29, 2013||Applied Medical Resources Corporation||Electrosurgical system|
|US8568444||Mar 7, 2012||Oct 29, 2013||Covidien Lp||Method of transferring rotational motion in an articulating surgical instrument|
|US8579894||Apr 1, 2009||Nov 12, 2013||Applied Medical Resources Corporation||Electrosurgical system|
|US8591506||Oct 16, 2012||Nov 26, 2013||Covidien Ag||Vessel sealing system|
|US8597297||Aug 29, 2006||Dec 3, 2013||Covidien Ag||Vessel sealing instrument with multiple electrode configurations|
|US8623276||Feb 9, 2009||Jan 7, 2014||Covidien Lp||Method and system for sterilizing an electrosurgical instrument|
|US8636761||Oct 9, 2008||Jan 28, 2014||Covidien Lp||Apparatus, system, and method for performing an endoscopic electrosurgical procedure|
|US8647341||Oct 27, 2006||Feb 11, 2014||Covidien Ag||Vessel sealer and divider for use with small trocars and cannulas|
|US8668689||Apr 19, 2010||Mar 11, 2014||Covidien Ag||In-line vessel sealer and divider|
|US8679114||Apr 23, 2010||Mar 25, 2014||Covidien Ag||Incorporating rapid cooling in tissue fusion heating processes|
|US8696667||Aug 9, 2012||Apr 15, 2014||Covidien Lp||Dual durometer insulating boot for electrosurgical forceps|
|US8734443||Sep 19, 2008||May 27, 2014||Covidien Lp||Vessel sealer and divider for large tissue structures|
|US8740901||Jan 20, 2010||Jun 3, 2014||Covidien Ag||Vessel sealing instrument with electrical cutting mechanism|
|US8764748||Jan 28, 2009||Jul 1, 2014||Covidien Lp||End effector assembly for electrosurgical device and method for making the same|
|US8784417||Aug 28, 2008||Jul 22, 2014||Covidien Lp||Tissue fusion jaw angle improvement|
|US8808328 *||Apr 2, 2013||Aug 19, 2014||Tufts Medical Center, Inc.||Spring loaded mechanism for managing scoliosis|
|US8858554||Jun 4, 2013||Oct 14, 2014||Covidien Lp||Apparatus, system, and method for performing an electrosurgical procedure|
|US8882766||Jan 24, 2006||Nov 11, 2014||Covidien Ag||Method and system for controlling delivery of energy to divide tissue|
|US8898888||Jan 26, 2012||Dec 2, 2014||Covidien Lp||System for manufacturing electrosurgical seal plates|
|US8915910||Apr 1, 2009||Dec 23, 2014||Applied Medical Resources Corporation||Electrosurgical system|
|US8939973||Nov 27, 2013||Jan 27, 2015||Covidien Ag||Single action tissue sealer|
|US8945125||Sep 10, 2010||Feb 3, 2015||Covidien Ag||Compressible jaw configuration with bipolar RF output electrodes for soft tissue fusion|
|US8945126||Nov 27, 2013||Feb 3, 2015||Covidien Ag||Single action tissue sealer|
|US8945127||Jan 23, 2014||Feb 3, 2015||Covidien Ag||Single action tissue sealer|
|US20130268003 *||Apr 2, 2013||Oct 10, 2013||Tufts Medical Center, Inc.||Spring loaded mechanism for managing scoliosis|
|USRE44834||Dec 7, 2012||Apr 8, 2014||Covidien Ag||Insulating boot for electrosurgical forceps|