Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3651811 A
Publication typeGrant
Publication date28 Mar 1972
Filing date10 Oct 1969
Priority date10 Oct 1969
Publication numberUS 3651811 A, US 3651811A, US-A-3651811, US3651811 A, US3651811A
InventorsHans G Hildebrandt, Fritz Hilzinger
Original AssigneeAesculap Werke Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Surgical cutting instrument
US 3651811 A
Abstract
A surgical cutting instrument that incorporates electrodes capable of coagulating or cauterizing a severed blood vessel at the same time that it is cut.
Images(4)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

limited Males 3,65LME Hildebrandt e11 all. [451 Mar. 2%, 1972 [54] SURGIQAL lClJTTING HNSTRUMENT 2,176,479 10/1939 Willis 128003.13

[72] Inventors: Hanns G- Hildebrandt, Ludwigshafen; Fritz FOREIGN PATENTS 0R APPLICATIONS llliilzinger, Tuttlingen, both of Germany 212,482 4/1967 Sweden 128/318 [73] Ass1gnee: Aesculap-Werke Aktiengesellschait vormalls Jetter 8: Scheerer, Tuttlinger (Baden- I OTHER PUBLICATIONS Wuertemberg), Germany Stevenson, Revlew of Books, 10/24/59, pp. 650- 651. [22] Filed: Oct. 10, 1969 [211 App], 365,442 Primary Examiner-L. W. Trapp Attorney-Kenyon & Kenyon Reilly Carr & Chapin [52) U.S. Cl. ..l28/303.17, 128/305 57 ABSTRACT [51] Int. Cl. ..A6lb 17/36 [58] Field oi Search 1 28/303. 1 303.13, 303.14, A surgical cutting instrument that incorporates electrodes 128/303.15, 303.16, 303.17, 318, 305 capable of coagulating or cauterizing a severed blood vessel at the same time that it is cut. [56] Relierences Cited 12 Claims, 10 Drawing Figures UNITED STATES PATi 5NTS SURGICAL CUTTING INSTRUMENT This invention relates to a surgical cutting instrument with two cutting blades movable toward one another during cutting in scissor or knife-like fashion.

Surgical cutting instruments of this kind are known in a wide range of embodiments as scissors and knives, for instance as instruments for valvulotomies, commissurotomies, or the like. If these cutting instruments are being used for the sectioning of blood vessels, the blood vessels must subsequently be closed. To this end, it is known to connect the cutting instrument to one pole of a current source the other pole of which is connected to the patients body. The moment the vessel has been cut through by the cutting instrument, the current source is connected. It then suffices to contact the severed blood vessel with the cutting instrument in order to close it by means of coagulation. It is also possible to achieve the coagulation upon cutting with a knife, simultaneously with the cutting. These surgical processes are however possible with larger blood vessels only. In micro-vessel surgery and in neurosurgery, these monopolar coagulation processes cannot always be used because the electric currents required to achieve coagulation are comparatively substantial and, in addition, all fabrics and vessels coming in contact with the instrument are coagulated as well which, in case of the coagulating of small vessels and in particular with coagulations in the area of the brain, the marrow and the jaws, may result in major complications.

For this reason, one uses in such cases bipolar coagulation forceps the two legs of which are electrically insulated from one another and can be connected to the two poles of a current source, thereby coagulating only what is being encompassed between the forceps arms. The use of these coagulation forceps is however quite cumbersome in view of the fact that the operating surgeon must, following coagulation of the blood vessel, remove the forceps from the operating area and subsequently use the cutting instrument, for instance a pair of scissors. The result is not only a time delay of the operation, which ought to be avoided at any cost, but also an increasing of the infection hazard. Besides, in micro-surgery, the introduction of a second instrument into the most narrow areas viewed under the microscope is extremely difficult.

It is the object of the invention to remedy this situation and to create a surgical cutting instrument by means of which the coagulation can be achieved without hazard of damage to the patient and without any need for the interchanging of instruments.

This object is achieved in the case of a surgical cutting instrument of the aforementioned kind in accordance with the invention in that there is provided an electrode electrically insulated from the first cutting blade and, to form two coagulation electrodes to achieve a bipolar coagulation, the first cutting blade and the electrode can be connected to the poles of an electric current source. The result is that the surgical instrument constitutes at the same time an instrument for bipolar coagulation, by means of which the vessel can be severed during bipolar coagulation or shortly thereafter, and consequently there is no need to interchange the instrument or to introduce a second instrument to the coagulated point.

With a preferred embodiment of the invention it may be provided that, for the purpose of forming the electrode by means of the second cutting blade, the latter is electrically insulated from the first cutting blade. The result is a preferred design of the instrument that differs little in appearance or function from standard cutting instruments thereby exhibiting all the benefits of the latter and nevertheless permitting a bipolar coagulation.

By means of suitable insulation, the invention can be used with practically all conventional surgical cutting instruments having two cutting blades movable with respect to one another.

The applicabilities of the invention are not limited to microsurgery in view of the fact that it is. advantageous also in the case of macro-surgery to cause a coagulation to take place only between the parts forming the electrodes and not, as in the case of the known monopolar process, at all those points where the instrument constituting as a whole the one electrode contacts parts of the patient's body and coagulates or damages them.

The invention is explained in detail below in the following description of four exemplified embodiments illustrated in the drawings of surgical scissors in accordance with the invention.

In the drawings:

FIGS. 1 and 2 show an elevation and of the first exemplified embodiment;

FIG. 3 shows a cross-section, on an enlarged scale, along line Illlll of FIG. 1;

FIGS. 4 and 5 show an elevation and side view, respectively, of a second exemplified embodiment;

FIG. 6 shows a cross-section, on an line VIVI of FIG. 4;

FIGS. 7 and 8 show a partial elevation and side view of a third exemplified embodiment; and

FIGS. 9 and l0 show an elevation and side view of a fourth exemplified embodiment.

The first exemplified embodiment of a pair of surgical scissors illustrated in FIGS. 1 to 3 shows a first scissor leg 1 and a second scissor leg 2 pivotally interconnected by means of the closing screw 3 of the pair of scissors, around the axis of said screw. The two cutting arms 4 and 5 of the two scissor legs 1 and 2 are designed at their free ends as cutting blades 6 and 7 in such a way that they will touch one another with their cutting edges 8 and 9, respectively, upon closing of the scissors only.

The two scissor legs 1 and 2 are electrically insulated from one another. To this end, an insulating plate 11 has been provided at the joint of the scissors between the two legs 1 and 2 of the scissors, which is fastened in a recess 12 of the first leg 1 of the scissors and which contains substantially in its center a bore for the shaft 13 of the closing screw 3 fastened with its thread in a taphole of the first leg 1 of the pair of scissors.

The closing screw 3 passing with its stem 13 through a bore of the second leg 2 of the scissors is electrically insulated from the second .leg 2 of the scissors, by the fact that between the head 14 and the stem 13 of the closing screw 3, on the one hand, and the second leg 2 of the scissors, on the other, there has been provided an electrically insulating Washer 15 or an electrically insulating sleeve 16.

The ends of the legs 1 and 2 opposite the cutting blades 6 and 7 are designed as flat springs 17 and 18, respectively, and joined at their free ends by a disk-shaped insulating head 19. For this purpose, the insulating head 19 is provided with two recesses 21 and 22, respectively, for engaging the free ends of the flat springs 17 and 18, these recesses having the shape of circle segments in a plane parallel to the flat faces of the disk 19, and being laterally defined by the flanges 23 forming the faces of the insulating head 19. In each of the flanges 23 there have been provided bores adjacent to one another as shown in FIG. 1, in which are fitted pins 24 and 25 to which the ends of the flat springs 17 and 18 are firmly connected within the recesses 21 and 22.

The handles 26 and 27 of the scissor legs 1 and 2, designed at their ends as flat springs 17 and 18, are provided with knurlings 28 along their sides facing away from one another. To prevent the contacting of the two handles 26 and 27 upon cutting with this pair of surgical scissors, thereby causing a short-circuit, a projecting electrically insulating pin 29 is attached to the side of the handle 27 facing the handle 26.

The moment the two pins 24 and 25 are inserted into the contact recesses of an electric socket connected to a power source, the two scissor legs 1 and 2 and hence also the two cutting blades 6 and 7 form two electrodes that are electrically insulated from one another. If, in the course of a surgical operation, a vessel is to be severed by means of the blades 8 and 9, there then occurs a coagulation between the two blades 8 and 9 the moment said blades touch the vessel to be severed. To that end, the voltage of the current source can be selected in such a way that a coagulation will occur only at the moment side view, respectively,

enlarged scale, along when the distance of the two electrodes is as great as the distance of the two blades 8 and 9 during the surgical operation so that a contacting of other parts of the patient by parts of the two scissor legs 1 and 2 that are further apart will not cause any coagulation or damage to the patient.

To avoid repetitions in the description of the subsequent exemplified embodiment, the parts in the drawing corresponding to those of the first exemplified embodiment are designated by reference digits increased in each case by 100 so that, through this assigning of said digits in the description of the following exemplified embodiments, reference is had to the first exemplified embodiment.

In the case of the second exemplified embodiment illustrated in FIGS. 4, 5 and 6, the two scissor legs 101 and 102 are insulated with respect to one another in like manner by an insulating plate 111, a washer 115, and a sleeve 116. The essential difference of the second exemplified embodiment, as compared with the first, is that projections 131 and 132 respectively have been provided at the free ends of the blades 108 and 109 of the cutting blades 106 and 107, respectively, which for the purpose of forming the coagulation electrodes proper upon the closing of the scissors, will clamp the tissue to be coagulated, before the edges 108 and 109 become effective. One reliably achieves, as a result, that the coagulation will occur prior to the actual cutting.

Another characteristic by which the second exemplified embodiment differs from the first resides in the fact that, in this case, the insulating head 119 is designed as a para]- lelepiped and that the ends of the flat springs 117 and 118 passing through the slots 133 of the insulating head 119 form flat pins 124 and 125.

If the second exemplified embodiment of the pair of surgical scissors according to FIGS. 4 to 6 is used in a surgical operation, the tissue to be cut, for example a vessel, is first clamped between the projections 131 and 132 of the cutting blades 106 and 107 and thus coagulated. Only after coagulation has occurred is the vessel cut by means of the edges 108 and 109.

In the case of the third exemplified embodiment of a pair of surgical scissors according to FIGS. 7 and 8, the two scissor legs 201 and 202 are, in customary manner, pivotally interconnected by the closing screw 203, one in metal-to-metal contact with the other and, as a result, not electrically insulated from one another. In order to achieve nevertheless a bipolar coagulation in this case, there has been provided an electrode 207a that is electrically insulated from the pair of scissors and is formed by the free end of a flexible spring 234 connected by means of two screws 235 to the handle 227 of the second scissor leg 202, which are firmly screwed down in tapholes of the handle 227 and are insulated from the flexible spring 234 by insulating washers 215 and by insulating sleeves (not shown) corresponding to the sleeve 16 of the first exemplified embodiment. For purposes of cooperation of the electrodes 207a with the cutting arm of the scissor leg 201, said cutting arm forming in this instance the cutting blade 206, there has been provided a lateral projection 236 at the free end of the cutting blade 207 of the second cutting arm 202 a groove-like recess 237 for the second cutting blade 207. The free end of the flexible spring 234 forming the electrode 2070 is bent in such a way that it will contact the projection 236 upon the closing of the pair of scissors before the free ends of the edges 208 and 209 have come in contact with one another.

During a surgical operation, the tissue to be severed is first clamped between the electrode 207a and the projection 236 and coagulated because the electrode 207a, on the one hand, and the scissors, preferably the first scissor leg 201, on the other, are connected with the two poles of a current source. The cutting will then occur subsequent to said coagulation only. This third embodiment offers the advantage that the coagulation point is situated in the direction of the swivel axis of the two scissor legs next to the cutting point so that, upon cutting, it is not the coagulation point itself but a point situated next to it that is being severed.

In the case of the fourth exemplified embodiment of the surgical scissors illustrated in FIGS. 9 and 10, the two scissor legs 301 and 302 are, by means of insulating pins 339 attached to the first scissor leg 30] and slotted holes 338 in the second scissor leg, interconnected in such a way that they are not pivotally connected but are axially slidable. To keep the two scissor legs 301 and 302 at a distance from one another and to insulate them electrically from one another at the same time, there have been provided electrically insulating sliding elements 340 and 341 between the legs next to the slotted holes 338.

At one of their extremities, the two scissor legs 301 and 302 are provided with cutting blades 306 and 307, respectively, laterally projecting in the same direction as seen in FIG. 9, which have edges 308 and 309, respectively, corresponding to the edges 108 and 109 of the second exemplified embodiment, at the free ends of which there have been provided projections 331 and 332, respectively, to form coagulation electrodes.

At the opposite ends of the two scissor legs 301 and 302, finger grips have been provided. In this embodiment the scissor leg 301 has been designed to be somewhat shorter than the scissor leg 302 and is provided with two laterally projecting finger grips 342, while the somewhat longer second scissor leg 302 is provided at its end with only one finger grip 343. At one of the two finger grips 342 and at the finger grip 343 there have been provided electrical contact pins 342 and 325, respectively.

In the case of the fust two exemplified embodiments according to FIGS. 1 to 6 there has been provided a metal closing screw 3 or 103, respectively. Said closing screw may however consist also of an insulating material, for instance a polyamide. In such a case there is required for insulating purposes between the two scissor legs 1 and 2, or 101 and 102, only the insulating plate 11 or 111. In lieu of a closing screw there may also be provided a rivet.

What is claimed is:

l. A combination cutting and coagulating surgical instrument for use in microsurgery which comprises:

a. a pair of cutting members movable with respect to one another adapted to perform a cutting function;

b. insulating means to electrically insulate each of said pair of cutting members from one another;

0. a pair of connecting means one being provided for each of said pair of cutting members, each of said connecting means being adapted to be connected to the respective pole of an electric current source and thereby form a pair of coagulation electrodes at said cutting members for bipolar coagulation when each of said connecting means is connected to the respective poles of an electric current source.

2. A surgical instrument according to claim 1 wherein each of said pair of cutting members is pivotally mounted with respect to one another and include handle means extending therefrom, said handle means being in the form of a leaf spring which cooperate with one another.

3. A surgical instrument in accordance with claim 2 which further includes a lateral projection on one of said handle means and wherein a cooperating recess is provided in the other of said handle means to receive said projection when said handle means are brought toward engagement with one another.

4. A surgical instrument in accordance with claim 1 wherein said pair of cutting members are in the form of cooperating cutting blades pivotally mounted with respect to one another so as to operate in a scissor-like manner, and wherein said insulating means comprises an insulating plate interposed at the pivot point between said pair of cutting blades.

5. A surgical instrument in accordance with claim 4 which further includes a screw means for pivotally mounting said pair of cutting blades, said screw means including a head, a bearing surface adjacent said head, and a threaded portion at the lower end thereof, said screw being threadedly fastened to the cutting blade engaged with the lower end thereof while the other cutting blade is pivotally supported about said bearing surface, and an insulating means interposed between the screw head and said other cutting blade so as to provide additional insulating means between said pair of cutting blades.

6. A surgical instrument in accordance with claim 4 wherein one of said cutting blades include a recess therein adapted to accept said insulating means.

7. A surgical instrument in accordance with claim 2 wherein said cutting members are in the form of cutting blades which contact one another only at their edges upon closing.

8. A surgical instrument in accordance with claim 7 wherein the edges of said cutting blades are shaped such that they will upon cutting contact one another first at their free ends.

9. A surgical instrument in accordance with claim 8 wherein the free end of at least one of said cutting blades includes a projection thereon adapted to clamp the tissue to be coagulated upon closing prior to said cutting blades contacting one another.

10. A surgical instrument in accordance with claim 1 wherein said cutting members are pivotally mounted with respect to one another so as to form scissor like cutting legs having handle portions extending therefrom, said handle portions being divergently disposed with respect to one another after the pivotal connecting point, spring members at the free end of said handle portions converging toward one another so as to meet upon closing thereof, and an insulating head interposed between said mating spring members upon closing thereof.

lll. A surgical instrument in accordance with claim 10 wherein said insulating head is in the form of a plug.

12. A surgical instrument in accordance with claim 10 wherein said pair of scissor-like cutting legs are interconnected so as to be axially displacable with respect to one another, and which further includes slidable insulating elements adapted to electrically insulate each of said scissor-like cutting legs from one another.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1586645 *6 Jul 19251 Jun 1926William BiermanMethod of and means for treating animal tissue to coagulate the same
US2176479 *20 Mar 193717 Oct 1939Willis David AApparatus for finding and removing metal particles from human and animal bodies
SE212482A * Title not available
Non-Patent Citations
Reference
1 *Stevenson, Review of Books, 10/24/59, pp. 650 651.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4034473 *23 Dec 197512 Jul 1977International Paper CompanySuture cutter
US4271838 *26 Sep 19789 Jun 1981Laschal Instruments Corp.Suture cutter
US4597385 *8 Jan 19851 Jul 1986Watson Trevor FBiopsy instrument
US4657017 *1 Dec 198314 Apr 1987Nauchno-Isledovatelsky Institute Obshei I Neotlozhnoi KhirugiiElectrosurgical instrument
US4848341 *25 Nov 198718 Jul 1989Riyaz AhmadSuture cutter
US4994061 *6 Mar 198919 Feb 1991Selvac CorporationHair grasping device
US5002554 *30 Nov 198926 Mar 1991Korber Kenneth EMicroscissors device and anastomotic repair technique
US5324289 *1 May 199228 Jun 1994Hemostatic Surgery CorporationHemostatic bi-polar electrosurgical cutting apparatus and methods of use
US5330471 *1 May 199219 Jul 1994Hemostatic Surgery CorporationBi-polar electrosurgical endoscopic instruments and methods of use
US5342381 *11 Feb 199330 Aug 1994Everest Medical CorporationCombination bipolar scissors and forceps instrument
US5356408 *16 Jul 199318 Oct 1994Everest Medical CorporationBipolar electrosurgical scissors having nonlinear blades
US5391166 *9 Oct 199221 Feb 1995Hemostatic Surgery CorporationBi-polar electrosurgical endoscopic instruments having a detachable working end
US5462546 *5 Feb 199331 Oct 1995Everest Medical CorporationBipolar electrosurgical forceps
US5472443 *17 Mar 19945 Dec 1995Hemostatic Surgery CorporationFor manipulating tissue during surgery to cause homeostasis
US5484436 *24 Jun 199416 Jan 1996Hemostatic Surgery CorporationBi-polar electrosurgical instruments and methods of making
US5514134 *12 Sep 19947 May 1996Everest Medical CorporationBipolar electrosurgical scissors
US5540684 *28 Jul 199430 Jul 1996Hassler, Jr.; William L.For coagulating tissue during a surgical procedure
US5633578 *15 Jul 199427 May 1997Hemostatic Surgery CorporationElectrosurgical generator adaptors
US5637111 *6 Jun 199510 Jun 1997Conmed CorporationBipolar electrosurgical instrument with desiccation feature
US5693045 *7 Jun 19952 Dec 1997Hemostatic Surgery CorporationElectrosurgical generator cable
US5700261 *29 Mar 199623 Dec 1997Ethicon Endo-Surgery, Inc.Bipolar Scissors
US5766166 *21 Feb 199616 Jun 1998Enable Medical CorporationBipolar Electrosurgical scissors
US5766170 *3 Jan 199716 Jun 1998Hemostatic Surgery CorporationElectrosurgical endoscopic instruments and methods of use
US5769849 *23 May 199523 Jun 1998Hemostatic Surgery CorporationBi-polar electrosurgical endoscopic instruments
US5776128 *3 Jan 19977 Jul 1998Hemostatic Surgery CorporationHemostatic bi-polar electrosurgical cutting apparatus
US5779701 *27 Apr 199514 Jul 1998Symbiosis CorporationBipolar endoscopic surgical scissor blades and instrument incorporating the same
US5810808 *3 Jan 199722 Sep 1998Hemostatic Surgery CorporationHemostatic bi-polar electrosurgical cutting apparatus and methods of use
US5846240 *19 Sep 19958 Dec 1998Symbiosis CorporationCeramic insulator for a bipolar push rod assembly for a bipolar endoscopic surgical instrument
US6050996 *12 Nov 199718 Apr 2000Sherwood Services AgBipolar electrosurgical instrument with replaceable electrodes
US6090108 *17 Jul 199718 Jul 2000Symbiosis CorporationBipolar endoscopic surgical scissor blades and instrument incorporating the same
US6152923 *28 Apr 199928 Nov 2000Sherwood Services AgMulti-contact forceps and method of sealing, coagulating, cauterizing and/or cutting vessels and tissue
US61798377 Mar 199530 Jan 2001Enable Medical CorporationBipolar electrosurgical scissors
US618700312 Nov 199713 Feb 2001Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US6206877 *30 Sep 199927 Mar 2001Ethicon, Inc.Combined bipolar scissor and grasper and method of forming thereof
US622808314 Nov 19978 May 2001Sherwood Services AgLaparoscopic bipolar electrosurgical instrument
US62677619 Sep 199731 Jul 2001Sherwood Services AgApparatus and method for sealing and cutting tissue
US627711723 Oct 199821 Aug 2001Sherwood Services AgOpen vessel sealing forceps with disposable electrodes
US633486117 Aug 19991 Jan 2002Sherwood Services AgBiopolar instrument for vessel sealing
US635026423 Oct 200026 Feb 2002Enable Medical CorporationBipolar electrosurgical scissors
US635503525 Sep 199812 Mar 2002Martin Christopher WeisselbergSurgical cutting tool
US639102929 Sep 200021 May 2002Enable Medical CorporationBipolar electrosurgical scissors
US640647528 Jul 199918 Jun 2002Ethicon, Inc.Pivoting device for pivotable parts of bipolar electrosurgical equipments
US644751127 Feb 199710 Sep 2002Symbiosis CorporationBipolar endoscopic surgical scissor blades and instrument incorporating the same
US64510189 Jun 200017 Sep 2002Sherwood Services AgLaparoscopic bipolar electrosurgical instrument
US646470129 Sep 200015 Oct 2002Enable Medical CorporationBipolar electrosurgical scissors
US651148022 Oct 199928 Jan 2003Sherwood Services AgOpen vessel sealing forceps with disposable electrodes
US651426726 Mar 20014 Feb 2003Iep Pharmaceutical Devices Inc.Ultrasonic scalpel
US658573521 Jul 20001 Jul 2003Sherwood Services AgEndoscopic bipolar electrosurgical forceps
US668252817 Sep 200227 Jan 2004Sherwood Services AgEndoscopic bipolar electrosurgical forceps
US67266861 Apr 200227 Apr 2004Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US677340919 Sep 200110 Aug 2004Surgrx LlcSurgical system for applying ultrasonic energy to tissue
US680284312 Sep 200212 Oct 2004Csaba TruckaiElectrosurgical working end with resistive gradient electrodes
US688724018 Oct 19993 May 2005Sherwood Services AgVessel sealing wave jaw
US690549731 May 200314 Jun 2005Surgrx, Inc.Jaw structure for electrosurgical instrument
US691357930 Apr 20025 Jul 2005Surgrx, Inc.Electrosurgical working end and method for obtaining tissue samples for biopsy
US69267169 Nov 20029 Aug 2005Surgrx Inc.Electrosurgical instrument
US692964422 Oct 200116 Aug 2005Surgrx Inc.Electrosurgical jaw structure for controlled energy delivery
US693281014 Nov 200123 Aug 2005Sherwood Services AgApparatus and method for sealing and cutting tissue
US696021013 Sep 20021 Nov 2005Sherwood Services AgLaparoscopic bipolar electrosurgical instrument
US701165710 Jan 200314 Mar 2006Surgrx, Inc.Jaw structure for electrosurgical instrument and method of use
US70333544 Dec 200325 Apr 2006Sherwood Services AgElectrosurgical electrode having a non-conductive porous ceramic coating
US704110222 May 20039 May 2006Surgrx, Inc.Electrosurgical working end with replaceable cartridges
US706369725 Jul 200320 Jun 2006Symbiosis CorporationBipolar endoscopic surgical scissor blades and instrument incorporating the same
US707059719 Aug 20034 Jul 2006Surgrx, Inc.Electrosurgical working end for controlled energy delivery
US70836185 Apr 20021 Aug 2006Sherwood Services AgVessel sealer and divider
US708361919 Jul 20021 Aug 2006Surgrx, Inc.Electrosurgical instrument and method of use
US708705430 Sep 20038 Aug 2006Surgrx, Inc.Electrosurgical instrument and method of use
US709067322 Jan 200215 Aug 2006Sherwood Services AgVessel sealer and divider
US710137125 Jun 20025 Sep 2006Dycus Sean TVessel sealer and divider
US71013726 Apr 20015 Sep 2006Sherwood Sevices AgVessel sealer and divider
US71013736 Apr 20015 Sep 2006Sherwood Services AgVessel sealer and divider
US711220122 Jan 200326 Sep 2006Surgrx Inc.Electrosurgical instrument and method of use
US71185706 Apr 200110 Oct 2006Sherwood Services AgVessel sealing forceps with disposable electrodes
US71185876 Apr 200110 Oct 2006Sherwood Services AgVessel sealer and divider
US713197017 Nov 20047 Nov 2006Sherwood Services AgOpen vessel sealing instrument with cutting mechanism
US713197121 Feb 20067 Nov 2006Sherwood Services AgVessel sealer and divider
US71350206 Apr 200114 Nov 2006Sherwood Services AgElectrosurgical instrument reducing flashover
US714763829 Apr 200412 Dec 2006Sherwood Services AgElectrosurgical instrument which reduces thermal damage to adjacent tissue
US715009713 Jun 200319 Dec 2006Sherwood Services AgMethod of manufacturing jaw assembly for vessel sealer and divider
US715074929 Sep 200419 Dec 2006Sherwood Services AgVessel sealer and divider having elongated knife stroke and safety cutting mechanism
US715684613 Jun 20032 Jan 2007Sherwood Services AgVessel sealer and divider for use with small trocars and cannulas
US71602986 Apr 20019 Jan 2007Sherwood Services AgElectrosurgical instrument which reduces effects to adjacent tissue structures
US716029928 Apr 20049 Jan 2007Sherwood Services AgMethod of fusing biomaterials with radiofrequency energy
US716914617 Feb 200430 Jan 2007Surgrx, Inc.Electrosurgical probe and method of use
US71792587 Apr 200420 Feb 2007Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US718625329 Apr 20056 Mar 2007Surgrx, Inc.Electrosurgical jaw structure for controlled energy delivery
US71892333 Sep 200413 Mar 2007Surgrx, Inc.Electrosurgical instrument
US71956319 Sep 200427 Mar 2007Sherwood Services AgForceps with spring loaded end effector assembly
US720799029 Jun 200524 Apr 2007Sherwood Services AgLaparoscopic bipolar electrosurgical instrument
US722326516 Feb 200629 May 2007Sherwood Services AgElectrosurgical electrode having a non-conductive porous ceramic coating
US723244021 Oct 200419 Jun 2007Sherwood Services AgBipolar forceps having monopolar extension
US724129615 Dec 200310 Jul 2007Sherwood Services AgBipolar electrosurgical instrument for sealing vessels
US725266722 Jun 20047 Aug 2007Sherwood Services AgOpen vessel sealing instrument with cutting mechanism and distal lockout
US725569731 Aug 200614 Aug 2007Sherwood Services AgVessel sealer and divider
US726767730 Oct 200211 Sep 2007Sherwood Services AgVessel sealing instrument
US727066029 Jun 200518 Sep 2007Sherwood Services AgApparatus and method for sealing and cutting tissue
US72706645 May 200618 Sep 2007Sherwood Services AgVessel sealing instrument with electrical cutting mechanism
US72760682 Sep 20042 Oct 2007Sherwood Services AgVessel sealing instrument with electrical cutting mechanism
US730984918 Nov 200418 Dec 2007Surgrx, Inc.Polymer compositions exhibiting a PTC property and methods of fabrication
US732925623 Dec 200512 Feb 2008Sherwood Services AgVessel sealing instrument
US735444018 Nov 20048 Apr 2008Surgrx, Inc.Electrosurgical instrument and method of use
US736797615 Nov 20046 May 2008Sherwood Services AgBipolar forceps having monopolar extension
US73779205 May 200527 May 2008Sherwood Services AgLaparoscopic bipolar electrosurgical instrument
US738120912 Feb 20073 Jun 2008Surgrx, Inc.Electrosurgical instrument
US738442019 May 200410 Jun 2008Sherwood Services AgVessel sealer and divider
US738442130 Sep 200510 Jun 2008Sherwood Services AgSlide-activated cutting assembly
US74352496 Apr 200114 Oct 2008Covidien AgElectrosurgical instruments which reduces collateral damage to adjacent tissue
US744219320 Nov 200328 Oct 2008Covidien AgElectrically conductive/insulative over-shoe for tissue fusion
US74421947 May 200728 Oct 2008Covidien AgBipolar forceps having monopolar extension
US74456217 May 20074 Nov 2008Covidien AgBipolar forceps having monopolar extension
US745897227 Mar 20072 Dec 2008Covidien AgElectrosurgical electrode having a non-conductive porous ceramic coating
US74732536 Apr 20016 Jan 2009Covidien AgVessel sealer and divider with non-conductive stop members
US74818107 May 200727 Jan 2009Covidien AgBipolar forceps having monopolar extension
US749120114 May 200417 Feb 2009Covidien AgTissue sealer with non-conductive variable stop members and method of sealing tissue
US749120231 Mar 200517 Feb 2009Covidien AgElectrosurgical forceps with slow closure sealing plates and method of sealing tissue
US75009753 Oct 200510 Mar 2009Covidien AgSpring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument
US751055624 Nov 200431 Mar 2009Coviden AgVessel sealing instrument
US751389816 Jan 20087 Apr 2009Covidien AgVessel sealing instrument
US754087219 Sep 20052 Jun 2009Covidien AgArticulating bipolar electrosurgical instrument
US755331221 Dec 200730 Jun 2009Covidien AgVessel sealing instrument
US75820876 Apr 20011 Sep 2009Covidien AgVessel sealing instrument
US75885707 Jun 200415 Sep 2009Tohru TaniMedical treatment instrument and medical treatment apparatus including the same
US759491622 Nov 200529 Sep 2009Covidien AgElectrosurgical forceps with energy based tissue division
US759769313 Jun 20036 Oct 2009Covidien AgVessel sealer and divider for use with small trocars and cannulas
US762879119 Aug 20058 Dec 2009Covidien AgSingle action tissue sealer
US762879222 Sep 20058 Dec 2009Covidien AgBilateral foot jaws
US763226918 Jan 200515 Dec 2009Ethicon Endo-Surgery, Inc.Electrosurgical instrument with replaceable cartridge
US76416534 May 20065 Jan 2010Covidien AgOpen vessel sealing forceps disposable handswitch
US765500718 Dec 20062 Feb 2010Covidien AgMethod of fusing biomaterials with radiofrequency energy
US768680410 Jan 200630 Mar 2010Covidien AgVessel sealer and divider with rotating sealer and cutter
US768682721 Oct 200530 Mar 2010Covidien AgMagnetic closure mechanism for hemostat
US770873519 Jul 20054 May 2010Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US774461518 Jul 200629 Jun 2010Covidien AgApparatus and method for transecting tissue on a bipolar vessel sealing instrument
US775390929 Apr 200413 Jul 2010Covidien AgElectrosurgical instrument which reduces thermal damage to adjacent tissue
US77669109 Nov 20063 Aug 2010Tyco Healthcare Group LpVessel sealer and divider for large tissue structures
US77714256 Feb 200610 Aug 2010Covidien AgVessel sealer and divider having a variable jaw clamping mechanism
US777603613 Mar 200317 Aug 2010Covidien AgBipolar concentric electrode assembly for soft tissue fusion
US77760377 Jul 200617 Aug 2010Covidien AgSystem and method for controlling electrode gap during tissue sealing
US778987829 Sep 20067 Sep 2010Covidien AgIn-line vessel sealer and divider
US779902613 Nov 200321 Sep 2010Covidien AgCompressible jaw configuration with bipolar RF output electrodes for soft tissue fusion
US779902826 Sep 200821 Sep 2010Covidien AgArticulating bipolar electrosurgical instrument
US78112838 Oct 200412 Oct 2010Covidien AgOpen vessel sealing instrument with hourglass cutting mechanism and over-ratchet safety
US781987229 Sep 200626 Oct 2010Covidien AgFlexible endoscopic catheter with ligasure
US782879827 Mar 20089 Nov 2010Covidien AgLaparoscopic bipolar electrosurgical instrument
US783768513 Jul 200523 Nov 2010Covidien AgSwitch mechanisms for safe activation of energy on an electrosurgical instrument
US78461585 May 20067 Dec 2010Covidien AgApparatus and method for electrode thermosurgery
US784616129 Sep 20067 Dec 2010Covidien AgInsulating boot for electrosurgical forceps
US785781218 Dec 200628 Dec 2010Covidien AgVessel sealer and divider having elongated knife stroke and safety for cutting mechanism
US787785219 Sep 20081 Feb 2011Tyco Healthcare Group LpMethod of manufacturing an end effector assembly for sealing tissue
US787785319 Sep 20081 Feb 2011Tyco Healthcare Group LpMethod of manufacturing end effector assembly for sealing tissue
US78790358 Nov 20061 Feb 2011Covidien AgInsulating boot for electrosurgical forceps
US788753517 Aug 200415 Feb 2011Covidien AgVessel sealing wave jaw
US788753619 Aug 200915 Feb 2011Covidien AgVessel sealing instrument
US789687812 Mar 20091 Mar 2011Coviden AgVessel sealing instrument
US790982317 Jan 200622 Mar 2011Covidien AgOpen vessel sealing instrument
US792271812 Oct 200612 Apr 2011Covidien AgOpen vessel sealing instrument with cutting mechanism
US792295328 Sep 200612 Apr 2011Covidien AgMethod for manufacturing an end effector assembly
US793164914 Feb 200726 Apr 2011Tyco Healthcare Group LpVessel sealing instrument with electrical cutting mechanism
US793505214 Feb 20073 May 2011Covidien AgForceps with spring loaded end effector assembly
US794704119 Aug 200924 May 2011Covidien AgVessel sealing instrument
US795114917 Oct 200631 May 2011Tyco Healthcare Group LpAblative material for use with tissue treatment device
US795115022 Feb 201031 May 2011Covidien AgVessel sealer and divider with rotating sealer and cutter
US795533114 Mar 20057 Jun 2011Ethicon Endo-Surgery, Inc.Electrosurgical instrument and method of use
US795533221 Sep 20057 Jun 2011Covidien AgMechanism for dividing tissue in a hemostat-style instrument
US796396510 May 200721 Jun 2011Covidien AgBipolar electrosurgical instrument for sealing vessels
US79811137 Apr 200819 Jul 2011Surgrx, Inc.Electrosurgical instrument
US80168279 Oct 200813 Sep 2011Tyco Healthcare Group LpApparatus, system, and method for performing an electrosurgical procedure
US80340521 Nov 201011 Oct 2011Covidien AgApparatus and method for electrode thermosurgery
US807074625 May 20076 Dec 2011Tyco Healthcare Group LpRadiofrequency fusion of cardiac tissue
US80755582 Jul 200513 Dec 2011Surgrx, Inc.Electrosurgical instrument and method
US811407423 Oct 199814 Feb 2012Boston Scientific Miami CorporationBipolar endoscopic surgical scissor blades and instrument incorporating the same
US812374329 Jul 200828 Feb 2012Covidien AgMechanism for dividing tissue in a hemostat-style instrument
US812862430 May 20066 Mar 2012Covidien AgElectrosurgical instrument that directs energy delivery and protects adjacent tissue
US81424733 Oct 200827 Mar 2012Tyco Healthcare Group LpMethod of transferring rotational motion in an articulating surgical instrument
US814748917 Feb 20113 Apr 2012Covidien AgOpen vessel sealing instrument
US816297315 Aug 200824 Apr 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US8182478 *12 Feb 200722 May 2012Erbe Elektromedizin GmbhElectrosurgical instrument and type series for electrosurgical instruments
US819243321 Aug 20075 Jun 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US819747910 Dec 200812 Jun 2012Tyco Healthcare Group LpVessel sealer and divider
US819763315 Mar 201112 Jun 2012Covidien AgMethod for manufacturing an end effector assembly
US82111057 May 20073 Jul 2012Covidien AgElectrosurgical instrument which reduces collateral damage to adjacent tissue
US822141612 Sep 200817 Jul 2012Tyco Healthcare Group LpInsulating boot for electrosurgical forceps with thermoplastic clevis
US823599223 Sep 20087 Aug 2012Tyco Healthcare Group LpInsulating boot with mechanical reinforcement for electrosurgical forceps
US823599324 Sep 20087 Aug 2012Tyco Healthcare Group LpInsulating boot for electrosurgical forceps with exohinged structure
US823602523 Sep 20087 Aug 2012Tyco Healthcare Group LpSilicone insulated electrosurgical forceps
US82412825 Sep 200814 Aug 2012Tyco Healthcare Group LpVessel sealing cutting assemblies
US824128317 Sep 200814 Aug 2012Tyco Healthcare Group LpDual durometer insulating boot for electrosurgical forceps
US82412845 Jan 200914 Aug 2012Covidien AgVessel sealer and divider with non-conductive stop members
US825199623 Sep 200828 Aug 2012Tyco Healthcare Group LpInsulating sheath for electrosurgical forceps
US82573527 Sep 20104 Sep 2012Covidien AgBipolar forceps having monopolar extension
US825738715 Aug 20084 Sep 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US82679354 Apr 200718 Sep 2012Tyco Healthcare Group LpElectrosurgical instrument reducing current densities at an insulator conductor junction
US826793623 Sep 200818 Sep 2012Tyco Healthcare Group LpInsulating mechanically-interfaced adhesive for electrosurgical forceps
US827744718 Nov 20092 Oct 2012Covidien AgSingle action tissue sealer
US829288822 Apr 200223 Oct 2012Tyco Healthcare Group LpBipolar or ultrasonic surgical device
US829822816 Sep 200830 Oct 2012Coviden AgElectrosurgical instrument which reduces collateral damage to adjacent tissue
US829823224 Mar 200930 Oct 2012Tyco Healthcare Group LpEndoscopic vessel sealer and divider for large tissue structures
US830358215 Sep 20086 Nov 2012Tyco Healthcare Group LpElectrosurgical instrument having a coated electrode utilizing an atomic layer deposition technique
US830358610 Feb 20096 Nov 2012Covidien AgSpring loaded reciprocating tissue cutting mechanism in a forceps-style electrosurgical instrument
US831778728 Aug 200827 Nov 2012Covidien LpTissue fusion jaw angle improvement
US83337654 Jun 201218 Dec 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US834894829 Jul 20108 Jan 2013Covidien AgVessel sealing system using capacitive RF dielectric heating
US836107128 Aug 200829 Jan 2013Covidien AgVessel sealing forceps with disposable electrodes
US836107219 Nov 201029 Jan 2013Covidien AgInsulating boot for electrosurgical forceps
US836670927 Dec 20115 Feb 2013Covidien AgArticulating bipolar electrosurgical instrument
US838275426 Jan 200926 Feb 2013Covidien AgElectrosurgical forceps with slow closure sealing plates and method of sealing tissue
US839409512 Jan 201112 Mar 2013Covidien AgInsulating boot for electrosurgical forceps
US839409611 Apr 201112 Mar 2013Covidien AgOpen vessel sealing instrument with cutting mechanism
US840919726 Apr 20062 Apr 2013Boston Scientific Miami CorporationMethods of cutting tissue using a medical instrument
US842550430 Nov 201123 Apr 2013Covidien LpRadiofrequency fusion of cardiac tissue
US84546024 May 20124 Jun 2013Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US846995621 Jul 200825 Jun 2013Covidien LpVariable resistor jaw
US84699577 Oct 200825 Jun 2013Covidien LpApparatus, system, and method for performing an electrosurgical procedure
US848610720 Oct 200816 Jul 2013Covidien LpMethod of sealing tissue using radiofrequency energy
US849665616 Jan 200930 Jul 2013Covidien AgTissue sealer with non-conductive variable stop members and method of sealing tissue
US852389012 Sep 20123 Sep 2013Covidien LpBipolar or ultrasonic surgical device
US852389810 Aug 20123 Sep 2013Covidien LpEndoscopic electrosurgical jaws with offset knife
US853531225 Sep 200817 Sep 2013Covidien LpApparatus, system and method for performing an electrosurgical procedure
US854071110 Jul 200724 Sep 2013Covidien AgVessel sealer and divider
US85510881 Apr 20098 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US855109130 Mar 20118 Oct 2013Covidien AgVessel sealing instrument with electrical cutting mechanism
US85625981 Apr 200922 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US856841131 Mar 200929 Oct 2013Applied Medical Resources CorporationElectrosurgical system
US85684447 Mar 201229 Oct 2013Covidien LpMethod of transferring rotational motion in an articulating surgical instrument
US85798941 Apr 200912 Nov 2013Applied Medical Resources CorporationElectrosurgical system
US859150616 Oct 201226 Nov 2013Covidien AgVessel sealing system
US859729631 Aug 20123 Dec 2013Covidien AgBipolar forceps having monopolar extension
US859729729 Aug 20063 Dec 2013Covidien AgVessel sealing instrument with multiple electrode configurations
US862301723 Jul 20097 Jan 2014Covidien AgOpen vessel sealing instrument with hourglass cutting mechanism and overratchet safety
US86232769 Feb 20097 Jan 2014Covidien LpMethod and system for sterilizing an electrosurgical instrument
US86367619 Oct 200828 Jan 2014Covidien LpApparatus, system, and method for performing an endoscopic electrosurgical procedure
US864171315 Sep 20104 Feb 2014Covidien AgFlexible endoscopic catheter with ligasure
US864734127 Oct 200611 Feb 2014Covidien AgVessel sealer and divider for use with small trocars and cannulas
US866868919 Apr 201011 Mar 2014Covidien AgIn-line vessel sealer and divider
US867911423 Apr 201025 Mar 2014Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US86966679 Aug 201215 Apr 2014Covidien LpDual durometer insulating boot for electrosurgical forceps
US873444319 Sep 200827 May 2014Covidien LpVessel sealer and divider for large tissue structures
US874090120 Jan 20103 Jun 2014Covidien AgVessel sealing instrument with electrical cutting mechanism
US876474828 Jan 20091 Jul 2014Covidien LpEnd effector assembly for electrosurgical device and method for making the same
US878441728 Aug 200822 Jul 2014Covidien LpTissue fusion jaw angle improvement
US879527428 Aug 20085 Aug 2014Covidien LpTissue fusion jaw angle improvement
US20090209959 *12 Feb 200720 Aug 2009Volker BartelElectrosurgical instrument and type series for electrosurgical instruments
USRE448347 Dec 20128 Apr 2014Covidien AgInsulating boot for electrosurgical forceps
DE19828976A1 *29 Jun 199824 Feb 2000Ethicon IncHinge unit for electrosurgical instruments takes the form of a bolt and nut connection accommodated in countersunk bores, with an insulating material at least on the surfaces of the bolt and/or nut and/or the bores
DE19828976C2 *29 Jun 19985 Dec 2002Ethicon IncBipolares elektrochirurgisches Instrument
DE102007018993A121 Apr 200730 Oct 2008Sutter Medizintechnik GmbhBipolare Schere mit gekrümmten Scherblättern
EP0113142A2 *5 Dec 198311 Jul 1984Ugo FerrandoMedical - surgical instrument
EP0306123A1 *25 Apr 19888 Mar 1989John C. JaegerSurgical instrument with adjustable angle of operation
EP0517243A1 *5 Jun 19929 Dec 1992Hemostatic Surgery CorporationHigh frequency electrosurgical apparatus employing constant voltage and methods of use
EP0517244A1 *5 Jun 19929 Dec 1992Hemostatic Surgery CorporationHemostatic bi-polar electrosurgical cutting apparatus
EP0518230A1 *5 Jun 199216 Dec 1992Hemostatic Surgery CorporationBi-polar electrosurgical endoscopic instruments
EP0572131A1 *7 May 19931 Dec 1993Everest Medical CorporationSurgical scissors with bipolar coagulation feature
EP0610326A1 *14 Oct 199217 Aug 1994Medical Scientific, Inc.Electrosurgical cutting tool
EP0790037A2 *10 Jan 199720 Aug 1997S & T Marketing AGBipolar forceps
EP0816025A2 *11 Jun 19977 Jan 1998JOSEF HEISS - MEDIZINTECHNIK GmbHElectrically heated scissors
EP0931515A2 *12 May 199528 Jul 1999Hagop Samuel ManushakianSurgical cutting tool
EP1634538A1 *7 Jun 200415 Mar 2006Alfresa Pharma CorporationMedical treatment tool and medical treatment equipment comprising it
EP2050410A211 Nov 199822 Apr 2009Covidien AGBipolar electrosurgical instrument for sealing vessels
EP2095785A111 Nov 19982 Sep 2009Covidien AGBipolar electrosurgical instrument with replaceable electrodes
WO1992020292A1 *19 May 199226 Nov 1992Harald HeidmuellerSurgical appliance
WO1992021301A1 *5 Jun 199210 Dec 1992Philip E EggersHemostatic bi-polar electrosurgical cutting apparatus and method
WO1992022257A1 *5 Jun 199223 Dec 1992Philip E EggersBi-polar electrosurgical endoscopic instruments and methods of use
WO1994008524A1 *8 Oct 199328 Apr 1994Philip E EggersElectrosurgical instruments having a detachable working end
WO1996022740A124 Jan 19961 Aug 1996Charles R SlaterBipolar endoscopic surgical scissor instrument
WO1999023933A211 Nov 199820 May 1999Valleylab IncBipolar electrosurgical instrument with replaceable electrodes
WO1999023959A111 Nov 199820 May 1999Valleylab IncBipolar electrosurgical instrument for sealing vessels
WO2004032776A111 Sep 200322 Apr 2004Sherwood Serv AgElectrosurgical instrument for sealing vessels
WO2005055846A1 *1 Dec 200423 Jun 2005Gyrus Group PlcA surgical instrument
Classifications
U.S. Classification606/51
International ClassificationA61B18/14, A61B17/32
Cooperative ClassificationA61B18/1402, A61B17/3201, A61B18/1442
European ClassificationA61B18/14F, A61B17/3201