|Publication number||US3901242 A|
|Publication date||Aug 26, 1975|
|Filing date||May 30, 1974|
|Priority date||May 30, 1974|
|Publication number||US 3901242 A, US 3901242A, US-A-3901242, US3901242 A, US3901242A|
|Original Assignee||Storz Endoskop Gmbh|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (6), Referenced by (195), Classifications (17) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Electric surgical instrument
US 3901242 A
1, 1 Mitt; States Patent 1 1 [111 3,901,242 Storz Aug. 26, 1975  ELECTRIC SURGICAL INSTRUMENT 2 484,()59 10/1949 Wallace 128/303.l5  Inventor: Karl Storz, Tuttlingen, Germany FOREIGN P N OR APPLICATIONS Assignee; Storz-Endo k0p 1,548,389 8/1967 France 128/303.15
Schaffhausen, Switzerland Primary Examiner-Richard C. Pinkham  Filed May 1974 Assistant Examiner-Lee S. Cohen  Appl. No.: 474,614 Attorney, Agent, or FirmOliver D. Olson  US. Cl. l28/303.l5  ABSTRACT  Int. Cl ..A61b 17/32 An electric Surgical instrument includes a pair oflatep  Field of l28/3O3l5 30316 ally spaced, hollow tubes the distal ends of which are l28/303'l8 407-409 interconnected by a transverse electrical insulating member upon which are helically wound a pair of  References cued spaced electrodes having electrical conductors which UNITED STATES PATENTS extend through the tubes for connection to a source of 164,184 6/1875 Kidder 128/303.17 high frequency current. This assembly is adapted for 1,814,791 7/1931 Endc 128/303.17 use with an endoscope or other similar type of instrul,983,669 12/1934 Kimble 128/303.l7 t 2,068,721 1/1937 Wapplcr l28/303.l5 2,275,167 3/1942 Bicrman 128/303.17 4 Claims, 6 Drawing Figures mgmgmuszsms 3, 901 ,242
sum 1 BF 2 PATENTEB AUBZ 61975 S'riiET 2 BF 2 ELECTRIC SURGICAL INSTRUMENT BACKGROUND OF THE INVENTION This invention relates to surgical instruments, and more particularly to a surgical operating instrument for electric cutting by means of high frequency current, particularly in the bladder.
Operating instruments of this type presently known are constructed as unipolar operating members, i.e. the instrument has an operating member which as only one electrode (e.g. German Gebrauchsmuster 1,980,836). However, the patient must be brought into contact with a so-called inactive plate-like electrode. As a result, the complete body of the patient serves as a conductor for the high frequency current whilst the loop-like electrode of the instrument, which is for example mounted in an endoscope, is constructed as the active electrode by means of which the cuts for removing diseased tissue are performed. For this purpose the current potentials must be comparatively high because on the one hand the whole body of the patient serves as a conductor and on the other hand sparking must occur on the loop-like active electrode. It is possible for burns to occur at the inactive electrode if contact with the patients body has not been completely satisfactory.
In order to avoid the foregoing disadvantages of unipolar operation in hemostatic coagulation, bipolar coagulation recently has been used in surgical operations. For this purpose, high frequency current is supplied to each of the two legs of the forceps which are insulated relative to one another. The tissue between the legs of the forceps is coagulated as soon as these legs are at the necessary limited distance from one another. As a result of such bipolar operation, the advantage obtained is that the high frequency current can be a multiple smaller than with unipolar operation. Accordingly, the danger of burns is eliminated.
However, operating instruments for use with endoscopes and other similar instruments heretofore have not been provided with a pair of electrodes for bipolar operation in such organs as the bladder.
SUMMARY OF THE INVENTION In its basic concept, this invention provides an electric surgical instrument which may be used with endoscopes and similar instruments for bladder and other operations, wherein the instrument is provided with a pair of electrodes.
It is by virtue of the foregoing basic concept that the principal objective of this invention is achieved;
namely, to overcome the aforementioned disadvan-- tages of prior electric surgical instrument for these types of operations.
Another object of this invention is to provide an electric surgical instrument of the class described in which the pair of electrodes are maintained in accurate spaced-apart arrangement.
A further object of this invention is the provision of an electric surgical instrument of the class described in which the support for the electrodes may be shaped to accommodate use with endoscopes and other similar types of instruments.
Still another object of this invention is the provision of an electric surgical instrument of the class described in which the pair of electrodes are supported to provide maximum surface areas facing one another.
A still further object of this invention is the provision of an electric surgical instrument of the class described which is of simplified construction for economical manufacture, which is capable of being cleaned with speed and facility and which is operable with precision and maximum safety.
The foregoing and other objects and advantages of this invention will appear from the following detailed description, taken in connection with the accompanying drawings of preferred embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a foreshortened front view, partly in section, of an endoscope having associated therewith an electric surgical instrument embodying the features of this invention.
FIG. 2 is a foreshortened side view of the electrical surgical instrument shown in FIG. 1.
FIG. 3 is a view in transverse section taken on the line III-III in FIG. 2 on a greatly increased scale.
FIG. 4 is a transverse sectional view of an electrode support in a further embodiment.
FIG. 5 is a fragmentary section taken in the longitudinal direction through the electrode support of FIG. 3.
FIG. 6 is a fragmentary plan view of a lathe tool for producing the electrode support of FIGS. 3 and 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an'endoscope shaft 16 in which is arranged the viewing tube with the eyepiece 18 and the lens 13. This can be of conventional design and is known to those skilled in the art. The electrode support carrier, commonly known as a loop carrier, and the appropriate guide block 17 also are fundamentally known.
The viewing tube is non-displaceably but interchangeably connected with the endoscope shaft 16 and a considerable portion of its length projects above the head 19 of the endoscope shaft. In the area of eyepiece 18 is articulated a lever 20 whose free end is hinged in shear-like manner with arm 21 of a hand lever 22 which, in turn, is articulated to guide block 17 and is constructed in the form of a control handle 23. Upon operating hand lever 22, relative to the attachment 24 on the eyepiece, the guide block 17 is moved in the lon gitudinal direction of the viewing tube.
The loop carrier comprises two parallel tubular rods 10 and 11 which are interconnected and guided on the viewing tube 15 and which at their distal ends carry and are interconnected by a transverse electrode support 12. In the embodiment illustrated, this support is in the form of an open loop (FIG. 3).
According to the invention, the left hand tubular rod 11 contains an insulated electrode wire 1 and the right hand rod 10 contains an insulated electrode wire 2.
In the area of the distal end of the viewing tube 15, the loop carrier is provided with a guidance member 14 in the form of a sleeve which surrounds the viewing tube and is supported on the inner wall of the endoscope shaft 16. The remaining inner area within the endoscope shaft serves as a washing passage. Guidance member 14 is provided with a nozzle-like constriction 24 (FIG. 2) through which a washing agent can be sprayed onto the loop 12 in order to clean the same. In head 19 of endoscope 16 is provided a pair of pipe connections, one being provided with a tap 26, the other with a tap 28, for the supply and discharge of the washing agent.
The insulated electrode wires 1 and 2, which are not shown in FIGS. 1 and 2 and which are for example 0.5 mm. thick, are located in tubes 10 and 11 and terminate at the top in plug 25 for connection to a source of high frequency current, not shown.
FIG. 3 shows a preferred embodiment of electrode support loop 12 on a greatly enlarged scale. It is curved according to the internal diameter of the endoscope shaft 16. The loop is made of electrical insulating material 4, preferably synthetic thermoplastic resin having appropriate strength and elasticity. Such plastics are well known to those skilled in the art. The support must be constructed in such a way that maximum surface areas of the two electrodes 1 and 2 face one another across the predetermined limited spacing between them. This means that particularly between the closest points of the two electrodes there will be no insulating material, because here the cutting process according to this invention takes place by spark-over.
Referring particularly to FIG. of the drawing, which shows FIG. 3 on a greatly enlarged scale, the insulating support 12 is provided externally with two parallel helical threads 5 and 6 which are of the same pitch and which are axially spaced relative to one another by a desired limited spacing. In this way, the two electrodes, whose diameter, for example, may be 0.5 mm., can be reliably kept at the desired limited spacing a from one another in the two parallel threads so that most of the surface thereof projects outward above the threads. As a result, the length of the electrodes which are in this way distributed over the loop is much greater than that of the loop itself, so that the total cutting surface is increased. The diameter of the insulator 4 is also kept small and can be, for example, 1 mm. It is particularly preferred that the limited spacing between the two electrodes be half as large as the pitch of the threads. In this way, a uniform construction of the threads over the insulator length is achieved.
The uninsulated portions of the electrodes 1 and 2 are wound onto the two parallel threads 5 and 6 of insulator 4 in the manner clearly shown in FIG. 5. Therefore, the left hand electrode 1 terminates at the right hand end of the insulator adjacent tube 10 and, conversely, the right hand electrode 2 terminates at the left hand end of the insulator adjacent tube 11.
The diameter d of insulator 4 can be, for example, 1 mm., whilst the diameter of electrode wires 1 and 2 can be, for example, 0.5 mm. The two parallel threads 5 and 6 have the same pitch h because otherwise the threads would run into one an other. The axial spacing a thereof relative to one another corresponds to the desired limited spacing between electrodes 1 and 2. This relates to the centers of the electrode wires. As can be seen, the closest points of the electrode surfaces are much closer together. In this way, very limited spacings of electrodes 1 and 2 can be reliably obtained because the electrode wires are securely held in threads 5 and 6 and cannot become displaced.
FIG. 5, only shows a short portion of loop 12 which, according to FIG. 3 is at least partly curved, corresponding to the inner diameter of endoscope shaft I6. The insulating plastic material from which insulator 4 is made has the necessary strength, but at least when warm can be brought into the form of FIG. 3. Insulator 4 not only has the function of keeping the thin electrode wires 1 and 2 at a particular spacing relative to one another and insulating the same relative to one another, but also insures the necessary stability of the structure. In this connection, wires 1 and 2 can be considerably thinner, for example 0.l mm. thick. As a result, a good cut is insured and also a high degree of stability in the case of clamp cuts, gripping pieces of tissue and currentless shaving.
In FIG. 5, the two threads 5 and 6 preferably are constructed as buttress threads, in order to leave freely exposed the maximum portion of electrode wires 1 and 2.
The threads 5 and 6 can be produced by conventional means. In accordance with this invention there is provided a recessing lathe tool having two cutting tips spaced apart relative to one another by the desired limited spacing corresponding to the cross section of the two threads. By means of this lathe tool, the indicated construction of the threads can be obtained in simple manner by turning the insulator 4.
FIG. 6 shows a lathe tool 7 which can be used to cut threads 5 and 6 in insulator 4 according to FIG. 5. This takes place on a small lathe, such as is conventionally used in the watch industry. A feed of h=2a must be selected to give a completely uniform arrangement of the two separate threads 5 and 6 for receiving the two electrode wires 1 and 2. To this end, the two cutting tips 8 and 9 must be at the spacing a from one another and contoured to produce the desired shape of threads.
Although the electrode support 12 of FIGS. 3 and 5 is circular in cross section, it may have various other cross sectional shapes. For example, it may be forkshaped in cross section, as illustrated in FIG. 4. This embodiment keeps the two electrodes 1 and 2 at a distance a and partly surrounds the same, but leaves free for sparking the area where the two electrodes 1 and 2 are closest together. Insulator 3 and electrodes 1 and 2 therefore together form a loop 12 as in the embodiment according to FIG. 3.
Whatever shape is selected for the insulators 3 and 4, it is important that the electrodes 1 and 2 be kept at the desired limited spacing a from one another by the insulator, in order to achieve efficient bipolar cutting.
It will be apparent to those skilled in the art that various changes may be made in the size, shape, type, number and arrangement of parts described hereinbefore, without departing from the spirit of this invention.
Having now described my invention and the manner in which it may be used, I claim:
1. An electric surgical instrument, comprising:
a. a pair of elongated, laterally spaced and substantially parallel hollow tubes,
an electrode support of electrically nonconductive material secured to and extending transversely between the tubes at one end thereof,
c. a pair of electrodes mounted upon the electrode support in spaced-apart relation and extending transversely between the tubes, and
d. an electrical conductor connected to each electrode and extending through one of said tubes for connection to a source of high frequency current.
2. The electric surgical instrument of claim I wherein the electrode support has a pair of helical threads of equal pitch spaced apart a predetermined distance and each mounting one of the pair of electrodes, with a substantial portion of the cross sectional thickness of the electrodes projecting outwardly from the threads.
wherein the electrode support is curved to correspond with the internal diameter of the endoscope shaft, the tubes and electrode support being mounted within the hollow shaft.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US164184 *||Mar 29, 1875||Jun 8, 1875|| ||Improvement in vesicular electrodes|
|US1814791 *||May 4, 1928||Jul 14, 1931||Ende Frank M||Diathermy|
|US1983669 *||Apr 19, 1933||Dec 11, 1934||Gen Electric X Ray Corp||Electrode|
|US2068721 *||Dec 7, 1934||Jan 26, 1937||Charles Wappler Frederick||Method for electrosurgical severance of adhesions|
|US2275167 *||Apr 26, 1939||Mar 3, 1942||Bierman William||Electrosurgical instrument|
|US2484059 *||Jul 10, 1945||Oct 11, 1949||American Cystoscope Makers Inc||Electrosurgical resecting instrument|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3973568 *||Feb 12, 1975||Aug 10, 1976||Iglesias Jose J||Stabilized cutting loop for resectoscope with unimpaired vision of the operative field|
|US4060087 *||Jun 11, 1976||Nov 29, 1977||Richard Wolf Gmbh||Single or double-shank cutting loop device for resectoscopes|
|US4116198 *||May 14, 1976||Sep 26, 1978||Delma, Elektro Und Medizinische Apparatebaugesellschaft M.B.H.||Electro - surgical device|
|US4134406 *||Oct 7, 1977||Jan 16, 1979||Iglesias Jose J||Cutting loop for suction resectoscopes|
|US4149538 *||Aug 15, 1977||Apr 17, 1979||American Hospital Supply Corporation||Resectoscope electrode assembly with non-conductive bearing tube and method of making the same|
|US4202337 *||Jun 14, 1977||May 13, 1980||Concept, Inc.||Bipolar electrosurgical knife|
|US4228800 *||Apr 4, 1978||Oct 21, 1980||Concept, Inc.||Bipolar electrosurgical knife|
|US4532924 *||Apr 30, 1982||Aug 6, 1985||American Hospital Supply Corporation||Multipolar electrosurgical device and method|
|US4711238 *||Mar 14, 1985||Dec 8, 1987||Cunningham Frank W||Meniscal cutting device|
|US4765331 *||Feb 10, 1987||Aug 23, 1988||Circon Corporation||Electrosurgical device with treatment arc of less than 360 degrees|
|US4917082 *||Jun 2, 1988||Apr 17, 1990||Circon Corporation||Resectoscope electrode|
|US4920978 *||Aug 31, 1988||May 1, 1990||Triangle Research And Development Corporation||Method and apparatus for the endoscopic treatment of deep tumors using RF hyperthermia|
|US5112329 *||Aug 13, 1990||May 12, 1992||Karl Storz||Four joint medical instrument with an endoscope|
|US5158087 *||Jan 31, 1992||Oct 27, 1992||Hewlett-Packard Company||Differential temperature measurement for ultrasound transducer thermal control|
|US5192280 *||Nov 25, 1991||Mar 9, 1993||Everest Medical Corporation||Pivoting multiple loop bipolar cutting device|
|US5423813 *||Mar 18, 1993||Jun 13, 1995||Coopersurgical||Resectoscope and electrode assembly|
|US5733283 *||Jun 5, 1996||Mar 31, 1998||Malis; Jerry L.||Flat loop bipolar electrode tips for electrosurgical instrument|
|US5749870 *||Aug 23, 1996||May 12, 1998||Nebl, Inc.||Electrode for coagulation and resection|
|US5855061 *||Nov 26, 1997||Jan 5, 1999||Valley Forge Scientific Corporation||Method of making flat loop bipolar electrode tips for electrosurgical instrument|
|US5906615 *||Mar 31, 1997||May 25, 1999||Femrx, Inc.||Serpentine ablation/coagulation electrode|
|US5944715 *||Nov 25, 1996||Aug 31, 1999||Gyrus Medical Limited||Electrosurgical instrument|
|US6004319 *||Jun 20, 1996||Dec 21, 1999||Gyrus Medical Limited||Electrosurgical instrument|
|US6013076 *||Oct 25, 1996||Jan 11, 2000||Gyrus Medical Limited||Electrosurgical instrument|
|US6015406 *||Aug 21, 1996||Jan 18, 2000||Gyrus Medical Limited||Electrosurgical instrument|
|US6027501 *||Jun 20, 1998||Feb 22, 2000||Gyrus Medical Limited||Electrosurgical instrument|
|US6050995 *||Sep 24, 1998||Apr 18, 2000||Scimed Lifesystems, Inc.||Polypectomy snare with multiple bipolar electrodes|
|US6056746 *||Mar 27, 1998||May 2, 2000||Gyrus Medical Limited||Electrosurgical instrument|
|US6090106 *||Mar 26, 1998||Jul 18, 2000||Gyrus Medical Limited||Electrosurgical instrument|
|US6093186 *||Dec 18, 1997||Jul 25, 2000||Gyrus Medical Limited||Electrosurgical generator and system|
|US6174308||May 26, 1999||Jan 16, 2001||Gyrus Medical Limited||Electrosurgical instrument|
|US6197025 *||Dec 9, 1996||Mar 6, 2001||Circon Corporation||Grooved slider electrode for a resectoscope|
|US6210405||Jun 17, 1997||Apr 3, 2001||Gyrus Medical Limited||Under water treatment|
|US6234178||May 27, 1999||May 22, 2001||Gyrus Medical Limited||Electrosurgical instrument|
|US6261286||Oct 16, 1998||Jul 17, 2001||Gyrus Medical Limited||Electrosurgical generator and system|
|US6277114||Mar 18, 1999||Aug 21, 2001||Gyrus Medical Limited||Electrode assembly for an electrosurical instrument|
|US6293942||May 2, 1996||Sep 25, 2001||Gyrus Medical Limited||Electrosurgical generator method|
|US6306134||Oct 16, 1998||Oct 23, 2001||Gyrus Medical Limited||Electrosurgical generator and system|
|US6358273||Apr 9, 1999||Mar 19, 2002||Oratec Inventions, Inc.||Soft tissue heating apparatus with independent, cooperative heating sources|
|US6364877||Oct 16, 1998||Apr 2, 2002||Gyrus Medical Limited||Electrosurgical generator and system|
|US6379350||Oct 5, 1999||Apr 30, 2002||Oratec Interventions, Inc.||Surgical instrument for ablation and aspiration|
|US6391028||May 16, 2000||May 21, 2002||Oratec Interventions, Inc.||Probe with distally orientated concave curve for arthroscopic surgery|
|US6394949||Oct 5, 1999||May 28, 2002||Scimed Life Systems, Inc.||Large area thermal ablation|
|US6416509||Mar 26, 1998||Jul 9, 2002||Gyrus Medical Limited||Electrosurgical generator and system|
|US6461357||Jun 25, 1999||Oct 8, 2002||Oratec Interventions, Inc.||Electrode for electrosurgical ablation of tissue|
|US6482202||Jan 10, 2001||Nov 19, 2002||Gyrus Medical Limited||Under water treatment|
|US6517536||Apr 27, 2001||Feb 11, 2003||Atricure, Inc.||Transmural ablation device and method|
|US6544260||Dec 31, 1999||Apr 8, 2003||Oratec Interventions, Inc.||Method for treating tissue in arthroscopic environment using precooling and apparatus for same|
|US6546935||Dec 22, 2000||Apr 15, 2003||Atricure, Inc.||Method for transmural ablation|
|US6565561||Apr 3, 2000||May 20, 2003||Cyrus Medical Limited||Electrosurgical instrument|
|US6589237||Jan 19, 2001||Jul 8, 2003||Arthrocare Corp.||Electrosurgical apparatus and methods for treating tissue|
|US6595990||May 12, 2000||Jul 22, 2003||Arthrocare Corporation||Systems and methods for electrosurgical tissue revascularization|
|US6623454||Jul 23, 1999||Sep 23, 2003||Arthrocare Corp.||System and method for electrosurgical tissue contraction|
|US6632193||Jan 5, 2000||Oct 14, 2003||Arthrocare Corporation||Systems and methods for electrosurgical tissue treatment|
|US6632220||Nov 12, 1999||Oct 14, 2003||Arthrocare Corp.||Systems for electrosurgical tissue treatment in conductive fluid|
|US6645203||Jan 2, 2001||Nov 11, 2003||Oratec Interventions, Inc.||Surgical instrument with off-axis electrode|
|US6659106||Jan 10, 2000||Dec 9, 2003||Arthrocare Corporation||System and methods for electrosurgical treatment of turbinates|
|US6695839||Feb 8, 2001||Feb 24, 2004||Oratec Interventions, Inc.||Method and apparatus for treatment of disrupted articular cartilage|
|US6712811||Sep 30, 2002||Mar 30, 2004||Arthrocare Corporation||Methods for electrosurgical spine surgery|
|US6726684||Nov 8, 2000||Apr 27, 2004||Arthrocare Corporation||Methods for electrosurgical spine surgery|
|US6746447||Apr 17, 2001||Jun 8, 2004||Arthrocare Corporation||Methods for ablating tissue|
|US6763836||Jun 18, 2002||Jul 20, 2004||Arthrocare Corporation||Methods for electrosurgical tendon vascularization|
|US6770071||Feb 9, 2001||Aug 3, 2004||Arthrocare Corporation||Bladed electrosurgical probe|
|US6772012||May 3, 2001||Aug 3, 2004||Arthrocare Corporation||Methods for electrosurgical treatment of spinal tissue|
|US6780180||Mar 8, 2000||Aug 24, 2004||Gyrus Medical Limited||Electrosurgical instrument|
|US6805130||Apr 27, 2001||Oct 19, 2004||Arthrocare Corporation||Methods for electrosurgical tendon vascularization|
|US6837884||Jun 18, 2002||Jan 4, 2005||Arthrocare Corporation||Electrosurgical apparatus having compound return electrode|
|US6837887||Jan 25, 2002||Jan 4, 2005||Arthrocare Corporation||Articulated electrosurgical probe and methods|
|US6837888||Feb 25, 2002||Jan 4, 2005||Arthrocare Corporation||Electrosurgical probe with movable return electrode and methods related thereto|
|US6855143||Dec 12, 2000||Feb 15, 2005||Arthrocare Corporation||Electrosurgical systems and methods for recanalization of occluded body lumens|
|US6889694||Dec 13, 2001||May 10, 2005||Atricure Inc.||Transmural ablation device|
|US6896672||May 1, 2000||May 24, 2005||Arthrocare Corporation||Methods for electrosurgical incisions on external skin surfaces|
|US6896673||Dec 23, 2002||May 24, 2005||Atricure, Inc.||Method for transmural ablation|
|US6896674||Nov 8, 2000||May 24, 2005||Arthrocare Corporation||Electrosurgical apparatus having digestion electrode and methods related thereto|
|US6899710||Dec 13, 2001||May 31, 2005||Atricure Inc.||Combination ablation and visualization apparatus for ablating cardiac tissue|
|US6905498||May 31, 2002||Jun 14, 2005||Atricure Inc.||Transmural ablation device with EKG sensor and pacing electrode|
|US6915806||Jan 25, 2001||Jul 12, 2005||Arthrocare Corporation||Method for harvesting graft vessel|
|US6920883||Nov 8, 2002||Jul 26, 2005||Arthrocare Corporation||Methods and apparatus for skin treatment|
|US6923806||Dec 12, 2001||Aug 2, 2005||Atricure Inc.||Transmural ablation device with spring loaded jaws|
|US6932811||Oct 26, 2001||Aug 23, 2005||Atricure, Inc.||Transmural ablation device with integral EKG sensor|
|US6932812||Apr 29, 2002||Aug 23, 2005||Scimed Life Systems, Inc.||Large area thermal ablation|
|US6939346||Jun 28, 2002||Sep 6, 2005||Oratec Interventions, Inc.||Method and apparatus for controlling a temperature-controlled probe|
|US6960204||Jul 16, 2003||Nov 1, 2005||Arthrocare Corporation||Electrosurgical method using laterally arranged active electrode|
|US6974453||Apr 20, 2001||Dec 13, 2005||Arthrocare Corporation||Dual mode electrosurgical clamping probe and related methods|
|US6974454||Dec 12, 2001||Dec 13, 2005||Atricure, Inc.||Transmural ablation device with thermocouple for measuring tissue temperature|
|US6984233||Aug 27, 2004||Jan 10, 2006||Atricure, Inc.||Transmural ablation device with parallel electrodes|
|US6991631||Feb 13, 2003||Jan 31, 2006||Arthrocare Corporation||Electrosurgical probe having circular electrode array for ablating joint tissue and systems related thereto|
|US6997941||Mar 17, 2003||Feb 14, 2006||Oratec Interventions, Inc.||Method and apparatus for treating annular fissures in intervertebral discs|
|US7001415||Dec 12, 2001||Feb 21, 2006||Atricure, Inc.||Transmural ablation device|
|US7004941||Nov 7, 2002||Feb 28, 2006||Arthrocare Corporation||Systems and methods for electrosurigical treatment of obstructive sleep disorders|
|US7070596||Oct 3, 2000||Jul 4, 2006||Arthrocare Corporation||Electrosurgical apparatus having a curved distal section|
|US7094215||Mar 28, 2003||Aug 22, 2006||Arthrocare Corporation||Systems and methods for electrosurgical tissue contraction|
|US7104986||May 12, 2003||Sep 12, 2006||Arthrocare Corporation||Intervertebral disc replacement method|
|US7113831||Dec 12, 2001||Sep 26, 2006||Atricure, Inc.||Transmural ablation device|
|US7131969||May 1, 2000||Nov 7, 2006||Arthrocare Corp||Systems and methods for electrosurgical treatment of obstructive sleep disorders|
|US7147635||Jan 29, 2004||Dec 12, 2006||Ethicon, Inc.||Bipolar electrosurgical snare|
|US7169143||Oct 20, 2005||Jan 30, 2007||Arthrocare Corporation||Methods for electrosurgical tissue treatment in electrically conductive fluid|
|US7179255||Dec 20, 2000||Feb 20, 2007||Arthrocare Corporation||Methods for targeted electrosurgery on contained herniated discs|
|US7186234||Feb 5, 2002||Mar 6, 2007||Arthrocare Corporation||Electrosurgical apparatus and methods for treatment and removal of tissue|
|US7192428||Mar 20, 2003||Mar 20, 2007||Arthrocare Corporation||Systems for epidermal tissue ablation|
|US7201750||May 18, 1999||Apr 10, 2007||Arthrocare Corporation||System for treating articular cartilage defects|
|US7217268||Jun 24, 2003||May 15, 2007||Arthrocare Corporation||Method for electrosurgical tissue treatment near a patient's heart|
|US7241292||Dec 23, 2002||Jul 10, 2007||Atricure, Inc.||Cardiac ablation device with movable hinge|
|US7241293||Nov 13, 2003||Jul 10, 2007||Arthrocare Corporation||Electrode screen enhanced electrosurgical apparatus and methods for ablating tissue|
|US7267683||Nov 14, 2003||Sep 11, 2007||Oratec Interventions, Inc.||Method for treating intervertebral discs|
|US7270658||Mar 10, 2003||Sep 18, 2007||Arthrocare Corporation||Systems and methods for electrosurgery|
|US7270659||Sep 19, 2005||Sep 18, 2007||Arthrocare Corporation||Methods for electrosurgical treatment of spinal tissue|
|US7270661||Feb 5, 2002||Sep 18, 2007||Arthocare Corporation||Electrosurgical apparatus and methods for treatment and removal of tissue|
|US7276063||Sep 12, 2003||Oct 2, 2007||Arthrocare Corporation||Instrument for electrosurgical tissue treatment|
|US7282061||Nov 14, 2003||Oct 16, 2007||Oratec Interventions, Inc.||Method of treating intervertebral disc|
|US7288092||Apr 22, 2004||Oct 30, 2007||Atricure, Inc.||Method and apparatus for ablating cardiac tissue with guide facility|
|US7291161||Oct 2, 2002||Nov 6, 2007||Atricure, Inc.||Articulated clamping member|
|US7297143||Feb 5, 2004||Nov 20, 2007||Arthrocare Corporation||Temperature indicating electrosurgical apparatus and methods|
|US7297145||Oct 11, 2005||Nov 20, 2007||Arthrocare Corporation||Bipolar electrosurgical clamp for removing and modifying tissue|
|US7318823||Jul 3, 2003||Jan 15, 2008||Arthrocare Corporation||Methods for repairing damaged intervertebral discs|
|US7331956||Aug 2, 2006||Feb 19, 2008||Arthrocare Corporation||Methods and apparatus for treating back pain|
|US7331957||Feb 14, 2003||Feb 19, 2008||Arthrocare Corporation||Electrosurgical apparatus and methods for laparoscopy|
|US7357798||May 13, 2003||Apr 15, 2008||Arthrocare Corporation||Systems and methods for electrosurgical prevention of disc herniations|
|US7387625||Mar 12, 2004||Jun 17, 2008||Arthrocare Corporation||Methods and apparatus for treating intervertebral discs|
|US7393351||Jun 18, 2002||Jul 1, 2008||Arthrocare Corporation||Apparatus and methods for treating cervical inter-vertebral discs|
|US7393353||Aug 18, 2004||Jul 1, 2008||Atricure, Inc.||Transmural ablation device with temperature sensor|
|US7400930||Nov 14, 2003||Jul 15, 2008||Oratec Interventions, Inc.||Method for treating intervertebral discs|
|US7419488||Jan 3, 2005||Sep 2, 2008||Arthrocare Corporation||Electrosurgical probe with movable return electrode and methods related thereto|
|US7422585||Jul 6, 1999||Sep 9, 2008||Arthrocare Corporation||System for electrosurgical myocardial revascularization|
|US7429260||Dec 19, 2006||Sep 30, 2008||Arthrocare Corporation||Systems and methods for electrosurgical tissue contraction within the spine|
|US7429262||Feb 28, 2001||Sep 30, 2008||Arthrocare Corporation||Apparatus and methods for electrosurgical ablation and resection of target tissue|
|US7435247||Jun 27, 2002||Oct 14, 2008||Arthrocare Corporation||Systems and methods for electrosurgical tissue treatment|
|US7442191||Sep 26, 2001||Oct 28, 2008||Arthrocare Corporation||Systems and methods for electrosurgical treatment of turbinates|
|US7445618||Jan 24, 2007||Nov 4, 2008||Arthrocare Corporation||Methods for tissue ablation using pulsed energy|
|US7449019||Aug 29, 2003||Nov 11, 2008||Smith & Nephew, Inc.||Intervertebral decompression|
|US7449021||Apr 25, 2005||Nov 11, 2008||Arthrocare Corporation||Systems and methods for electrosurgical tissue contraction within the spine|
|US7462178||Sep 17, 2007||Dec 9, 2008||Arthrocare Corporation||Systems and methods for electrosurgical spine surgery|
|US7468059||Feb 9, 2007||Dec 23, 2008||Arthrocare Corporation||System and method for epidermal tissue ablation|
|US7468061||Aug 27, 2004||Dec 23, 2008||Atricure, Inc.||Transmural ablation device with integral EKG sensor|
|US7470272||Jun 30, 2004||Dec 30, 2008||Medtronic, Inc.||Device and method for ablating tissue|
|US7487780||Aug 27, 2004||Feb 10, 2009||Atricure, Inc.||Sub-xyphoid method for ablating cardiac tissue|
|US7491200||Mar 25, 2005||Feb 17, 2009||Arthrocare Corporation||Method for treating obstructive sleep disorder includes removing tissue from base of tongue|
|US7505812||Jul 16, 1999||Mar 17, 2009||Arthrocare Corporation||Electrosurgical system for treating restenosis of body lumens|
|US7507235||May 28, 2002||Mar 24, 2009||Medtronic, Inc.||Method and system for organ positioning and stabilization|
|US7507236||Apr 6, 2007||Mar 24, 2009||Arthrocare Corporation||System and method for electrosurgical cutting and ablation|
|US7530980||Apr 13, 2005||May 12, 2009||Atricure, Inc||Bipolar transmural ablation method and apparatus|
|US7543589||Feb 15, 2007||Jun 9, 2009||Atricure, Inc.||Method for ablating cardiac tissue|
|US7566334||Jun 2, 2005||Jul 28, 2009||Medtronic, Inc.||Ablation device with jaws|
|US7572251||Dec 6, 1999||Aug 11, 2009||Arthrocare Corporation||Systems and methods for electrosurgical tissue treatment|
|US7604634||Dec 12, 2001||Oct 20, 2009||Atricure, Inc.||Transmural ablation device|
|US7628780||Nov 30, 2004||Dec 8, 2009||Medtronic, Inc.||Devices and methods for interstitial injection of biologic agents into tissue|
|US7632267||Jul 6, 2005||Dec 15, 2009||Arthrocare Corporation||Fuse-electrode electrosurgical apparatus|
|US7647123||Oct 31, 2007||Jan 12, 2010||Oratec Interventions, Inc.||Method for treating intervertebral discs|
|US7655003||Jun 22, 2005||Feb 2, 2010||Smith & Nephew, Inc.||Electrosurgical power control|
|US7678069||Jun 2, 2000||Mar 16, 2010||Arthrocare Corporation||System for electrosurgical tissue treatment in the presence of electrically conductive fluid|
|US7678111||Nov 29, 2005||Mar 16, 2010||Medtronic, Inc.||Device and method for ablating tissue|
|US7691101||Jan 6, 2006||Apr 6, 2010||Arthrocare Corporation||Electrosurgical method and system for treating foot ulcer|
|US7704249||May 9, 2005||Apr 27, 2010||Arthrocare Corporation||Apparatus and methods for electrosurgical ablation and resection of target tissue|
|US7708733||Oct 20, 2004||May 4, 2010||Arthrocare Corporation||Electrosurgical method and apparatus for removing tissue within a bone body|
|US7717912||Nov 19, 2007||May 18, 2010||Arthrocare Corporation||Bipolar electrosurgical clamp for removing and modifying tissue|
|US7740623||Jun 23, 2005||Jun 22, 2010||Medtronic, Inc.||Devices and methods for interstitial injection of biologic agents into tissue|
|US7744562||Oct 10, 2006||Jun 29, 2010||Medtronics, Inc.||Devices and methods for interstitial injection of biologic agents into tissue|
|US7749159||Jun 21, 2005||Jul 6, 2010||Boston Scientific Scimed, Inc.||Large area thermal ablation|
|US7758537||Apr 16, 1999||Jul 20, 2010||Arthrocare Corporation||Systems and methods for electrosurgical removal of the stratum corneum|
|US7794456||Apr 10, 2008||Sep 14, 2010||Arthrocare Corporation||Systems and methods for electrosurgical intervertebral disc replacement|
|US7819863||Nov 17, 2008||Oct 26, 2010||Arthrocare Corporation||System and method for electrosurgical cutting and ablation|
|US7824398||Jan 9, 2003||Nov 2, 2010||Arthrocare Corporation||Electrosurgical systems and methods for removing and modifying tissue|
|US7824405||Feb 15, 2008||Nov 2, 2010||Arthrocare Corporation||Electrosurgical apparatus and methods for laparoscopy|
|US7862560||Mar 23, 2007||Jan 4, 2011||Arthrocare Corporation||Ablation apparatus having reduced nerve stimulation and related methods|
|US7875028||Jul 8, 2009||Jan 25, 2011||Medtronic, Inc.||Ablation device with jaws|
|US7879034||Mar 2, 2006||Feb 1, 2011||Arthrocare Corporation||Internally located return electrode electrosurgical apparatus, system and method|
|US7892230||Jun 24, 2005||Feb 22, 2011||Arthrocare Corporation||Electrosurgical device having planar vertical electrode and related methods|
|US7901403||Mar 2, 2007||Mar 8, 2011||Arthrocare Corporation||Internally located return electrode electrosurgical apparatus, system and method|
|US7951141||Aug 9, 2010||May 31, 2011||Arthrocare Corporation||Systems and methods for electrosurgical intervertebral disc replacement|
|US7967816||Jan 25, 2002||Jun 28, 2011||Medtronic, Inc.||Fluid-assisted electrosurgical instrument with shapeable electrode|
|US7988689||Sep 17, 2007||Aug 2, 2011||Arthrocare Corporation||Electrosurgical apparatus and methods for treatment and removal of tissue|
|US8012153||Jul 16, 2004||Sep 6, 2011||Arthrocare Corporation||Rotary electrosurgical apparatus and methods thereof|
|US8052675||Jan 21, 2010||Nov 8, 2011||Smith & Nephew, Inc.||Electrosurgical power control|
|US8114071||May 29, 2007||Feb 14, 2012||Arthrocare Corporation||Hard tissue ablation system|
|US8162941||Dec 20, 2010||Apr 24, 2012||Medtronic, Inc.||Ablation device with jaws|
|US8177784||Sep 21, 2007||May 15, 2012||Electromedical Associates, Llc||Electrosurgical device having floating potential electrode and adapted for use with a resectoscope|
|US8187312||Oct 15, 2007||May 29, 2012||Neurotherm, Inc.||Method for treating intervertebral disc|
|US8192424||Jan 4, 2008||Jun 5, 2012||Arthrocare Corporation||Electrosurgical system with suction control apparatus, system and method|
|US8226697||Oct 15, 2007||Jul 24, 2012||Neurotherm, Inc.||Method for treating intervertebral disc|
|US8257350||Jun 17, 2009||Sep 4, 2012||Arthrocare Corporation||Method and system of an electrosurgical controller with wave-shaping|
|US8273072||Nov 18, 2009||Sep 25, 2012||Medtronic, Inc.||Devices and methods for interstitial injection of biologic agents into tissue|
|US8292887||Feb 9, 2011||Oct 23, 2012||Arthrocare Corporation||Internally located return electrode electrosurgical apparatus, system and method|
|US8308724||Jun 22, 2009||Nov 13, 2012||Electromedical Associates, Llc||Bipolar electrosurgical device with floating-potential electrodes|
|US8317786||Sep 25, 2009||Nov 27, 2012||AthroCare Corporation||System, method and apparatus for electrosurgical instrument with movable suction sheath|
|US8323279||Sep 25, 2009||Dec 4, 2012||Arthocare Corporation||System, method and apparatus for electrosurgical instrument with movable fluid delivery sheath|
|US8348934||Sep 23, 2011||Jan 8, 2013||Smith & Nephew, Inc.||Electrosurgical power control|
|US8348944||Apr 19, 2012||Jan 8, 2013||Electromedical Associates, Llc||Electrosurgical device having floating-potential electrode and bubble trap|
|US8355799||Dec 12, 2008||Jan 15, 2013||Arthrocare Corporation||Systems and methods for limiting joint temperature|
|US8372067||Dec 9, 2009||Feb 12, 2013||Arthrocare Corporation||Electrosurgery irrigation primer systems and methods|
|US8444638||Jan 6, 2012||May 21, 2013||Arthrocare Corporation||Hard tissue ablation system|
|US8475452||Feb 20, 2008||Jul 2, 2013||Electromedical Associates, Llc||Instruments and methods for thermal tissue treatment|
|US8486064||May 31, 2012||Jul 16, 2013||Electromedical Associates Llc||Electrosurgical device having floating-potential electrode and curvilinear profile|
|USRE40156||Oct 9, 2003||Mar 18, 2008||Arthrocare Corporation||Methods for repairing damaged intervertebral discs|
|EP0684791A1 *||Apr 30, 1993||Dec 6, 1995||Vital Medical Products Corporation||Bipolar surgical snare and methods of use|
|WO1981003271A1 *||Oct 28, 1980||Nov 26, 1981||American Hospital Supply Corp||A multipolar electrosurgical device|
|WO1981003272A1 *||May 4, 1981||Nov 26, 1981||American Hospital Supply Corp||A multipolar electrosurgical device|
| || |
|U.S. Classification||606/46, 606/48|
|International Classification||A61B1/12, A61M3/02, A61B18/14, A61M3/00, A61B1/307|
|Cooperative Classification||A61B18/149, A61M3/0283, A61B18/1402, A61B1/12, A61B18/1485, A61B1/307|
|European Classification||A61B1/307, A61B1/12, A61B18/14S, A61B18/14U|