|Publication number||US3906955 A|
|Publication date||Sep 23, 1975|
|Filing date||May 6, 1974|
|Priority date||May 6, 1974|
|Publication number||US 3906955 A, US 3906955A, US-A-3906955, US3906955 A, US3906955A|
|Inventors||Richard R Roberts|
|Original Assignee||Richard R Roberts|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Referenced by (115), Classifications (9) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Surgical cauterizing tool having suction means
US 3906955 A
A medical tool which comprises a cauterizing blade mounted in a plastic handle or body, and a manually retractable vacuum tube which can be positioned adjacent the cauterizing tool to evacuate the cauterizing area, or which can be retracted therefrom when no evacuation is necessary.
[ Sept. 23, 1975 SURGICAL CAUTERIZING TOOL HAVING SUCTION MEANS  inventor: Richard R. Roberts, The Barn Trailer Pk., Rt. 1, Box 321, Red Oak, Tex. 75154  Filed: May 6, 1974  Appl. No.: 467,611
3,532,095 10/1970 Miller l28/303.17 X 3,799,168 2/1972 Peters.... l28/303.l7
3,825,004 7/1974 Durden l28/275.l 3,828,780 8/1974 Morrison, Jr. 128/2751 Primary ExaminerChanning L. Pace Attorney, Agent, or Firm-Harvey C. Nienow  ABSTRACT A medical tool which comprises a cauterizing blade  U.S. Cl. 128/303.l7; 128/2751 t d in a plastic handle or body, and a manually (:l. retractable vacuum tube can be positioned ad-  F|eld of Search [ZS/275.1, 276, 297, 30 jacent the cauterizing tool to evacuate the cauterizing 128/303-17 area, or which can be retracted therefrom when no evacuation is necessary.  References Clted The cauterizing blade is connected to an electrical UNITED STATES PATENTS conductor by means of a connector which permits 2,275,167 3/1942 Bierman 128/303..l7 quick and easy replacement of the blade. The 2/ 2; gugust l ggiz-g retractable tube is adapted to be connected to a l9 oone c f um. 2,888,928 6/1959 Seiger 128/303.17 Sour e O vacu 3,494,363 2/1970 Jackson l28/303.17 X 4 Claims, 6 Drawing Figures 24 /2 ad 4 42/ t .5 22 A9; 2.2 20 0' 4 a I 26 i sximifltwi I .r-z- -u llq I rEllll/Yl if:
SURGICAL CAUTERIZING TOOL HAVING SUCTION MEANS The present invention relates generally to medical tools, and more particularly to tools which can,be used effectively for cauterizing a small: area of a persons body. 8 I t I v For various different'purposes, it frequently becomes necessary to cauterize a particular area of a persons body. This'process requires the application of heat and is frequently done to stop the flow of blood when small. veins have been ruptured. 7
Tools for cauterizing are usually elec-t 'cally ener gized with high frequenty electrical energy. Such element is then positionedin the proper location to effect the cauterizing operation. Y I
Since the cauterizing function has particular application in closing sm'all veins which have been ruptured,
it frequently occurs that there is a pool of blood neari Due to the limited'space wherein such operations are performed, an additional vacuum tube becomes an obstacle which can and does-interfere with the cauterizing procedure. Therefore, it is an object of the present invention to provide a medical tool which is capable of performing the cauterizing function and which includes vacuum means which does not interfere with the canterizing.
Another object of the present invention is to provide a medical tool as characterized above which includes means for manually manipulating the evacuating means so that the area of the patient can be evacuated and cauterized with minimum motions and time involved.
A further object of the present invention is to provide a medical tool as characterized above which can be used to perform all of the aforenamed functions while being held in one hand of the operating physician.
An even further object of the present invention is to provide a medical tool as characterized above wherein the cauterizing blade can be quickly and easily changed.
Another further object of the present invention is to provide a medical tool as characterized above having a manually operable slider which can be moved to effect retraction or extension of the vacuum tube with respect to the cauterizing blade.
An even further object of the present invention is to provide a medical tool as characterized above which is simple and inexpensive to manufacture and which is rugged and dependable in an operation.
The novel features which I consider characteristic of my invention are set forth with particularity in the appended claims. The device itsclf, however, both as to its organization and mode of operation, together with additional objects and advantages thereof, will best be understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:
FIG. I is a perspective view ofa medical tool accord ing to the present invention;
FIG. 2 is an end elevational view of the medical tool of FIG. 1;
FIG. 3 is a fragmentary longitudinal sectional view. taken substantially along line 3-3 of FIG. 2;
FIG. 4 is a transverse sectional view, taken substantially along line 4 4 of FIG. 3;
FIG. 5. isa fragmentary sectional view taken substantially along 5-5 of FIG. 3 and,
FIG. 6 is a fragmentary perspective view of the end of the medical tool of FIG. 1.
Like reference characters indicate corresponding parts throughout the several views of the drawings.
Referring to FIG. 1. of the drawi'ngs, there is shown therein a medical tool 10 according to the present invention. It comprises a body 12 which is shaped somewhat like, a pencil, and is preferably formed of plastic, although it could be formed of any appropriate material.
Body 12 has a generally tapered exterior configuration, having a larger cross-sectional rearward portion 12u than the forward portion 12b.
Extending from the rear of body 12 is an electrica conductor 14 and a vacuum tube or conduit 16. Conductor 14 is adapted to be connected to any appropriate source of electrical energy for purposes to be hereinafter described, and conduit 16 is adapted to be connected to any appropriate source of vacuum as will hereinafter become more apparent.
Referring more-particularly to FIG. 3 ofthe drawings, body 12 is formed with a pair of through openings 12c and 12d which may extend the entire length of the body or may communicate with a large central opening l2e. The electrical conductor '14 extends into the body 12, within the central opening 126 thereof, into the rear portion of an electrical connector 18. It is soldered therein as shown at 20. Such connector 18 is provided with an opening 180 wherein is positioned a cauterizin g element or blade 22.
In accordance with the present invention, cauterizing element 22 may take substantially any desired form or shape but is preferably formed with an end portion 22a which is adapted to engage one end of connector 18. As shown most clearly in FIG. 5 of the drawings, connector 18 may be provided with a slot 18b which provides sufficient resiliency to receive the end portion 22a of element 22 to provide a good mechanical as well as electrical connection therebetween.
Although element 22 may take substantially any desired form or shape appropriate for the intended use, the element 22 shown in the drawings includes a blade portion 22b having oppositely disposed coplanar faces or surfaces 220.
Slidably positioned within through opening 12d of body 12 is the end 16a of conduit 16. To effect longitudinal movement of conduit 16, for purposes which will hereinafter be explained, a manually operable slider 24 is fastened thereto as shown at 26. Such slider 24 comprises a depending portion 24a formed with a first opening 241; for loosely receiving conductor 14, as shown in the drawings, and a second opening 246 for snugly receiving the vacuum tube 16. Any appropriate bonding material may be used at 26 to firmly secure the tube 16 to the depending portion 24:! of slider 24.
Slider 24 further includes a finger operated extension 24:] which, as shown most clearly in FIG. 1 of the drawings, may be formed with a rough or knurled surface 240, and which is curved to conform to the general shape or contour of body 12. The depending portion 240 of slider 24 extends through an opening or cavity 12f formed in the side wall of body 12 as shown most clearly in FIG. 3 of the drawings.
The subject medical tool is used by a physician. by being held like an ordinary pen or pencil. As such. the physician is able to direct the cauterizing blade 22 as well as the vacuum tube 16 to the precise location. When it is desired to evacuate the space wherein the cauterization is to take place, it is merely necessary for the physician, by manipulation of his thumb or forefinger, to extend the tube 16 by sliding the slider 24 to its forward position as shown in FIG. 6. This places the end of tube 16 adjacent the cauterizing blade 22 so as to evacuate the area to be cauterized.
Following such evacuation, in order for the physician to properly view the area being cauterizcd and to insure that the cauterizing blade 22 is properly positioned, the vacuum tube 16 is retracted to the position shown in FIG. 1, merely by the physician sliding the slider 24 to its rearward position. Thus, the cauterizing blade 22 is unobstructed and can be located at the proper place.
It is thus seen that the present invention provides a medical tool which is simple to manufacture and simple to operate and which is capable of providing optimum effectiveness in cauterizing, while nonetheless providing evacuation for cleaning the area to be cauterized. Further, the evacuating elements offer no obstruction to the cauterizing function by virtue of being retractable at will.
Although I have shown and described certain specific embodiments of my invention, l am well aware that many modifications thereof are possible.
l. A medical tool comprising in combination. an elongated body formed with first and second through openings and a cavity in a side wall thereof,
, cauterizing means comprising an electrical conductor within said first through opening and a cauterizing blade extending from one end of said first opening and connected in circuit with said conductor,
a tube slideably positioned within said second through opening and adapted to be connected to a vacuum source, and
a slider extending through said cavity in said body and fastened to said tube to be manually operated exteriorly of said body to extend and retract said tube to and from adjacent said cauterizing blade.
2. A medical tool according to claim 1, wherein said slider is formed with a depending portion which extends through said cavity and is fastened to said tube within said second through opening.
3. A medical tool according to claim 2, wherein said slider has an extension disposed at an angle to said depending portion to cover said cavity in said side wall to be manually operable for extending and retracting said tube.
4. A medical tool according to claim 3, wherein said body is generally cylindrical and said extension is arcuate to conform to said external shape of said body and to cover the cavity in the side wall thereof.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2275167 *||Apr 26, 1939||Mar 3, 1942||Bierman William||Electrosurgical instrument|
|US2808833 *||Dec 6, 1952||Oct 8, 1957||Birtcher Corp||Gas blanketed clotting instrument|
|US2822808 *||Nov 20, 1956||Feb 11, 1958||Boone George D||Disposable specimen collector|
|US2888928 *||Apr 15, 1957||Jun 2, 1959||Wright Seiger Harry||Coagulating surgical instrument|
|US3494363 *||Apr 1, 1969||Feb 10, 1970||Technical Resources Inc||Control for devices used in surgery|
|US3532095 *||Jun 21, 1968||Oct 6, 1970||Weck & Co Inc Edward||Electrosurgical instrument|
|US3799168 *||Feb 28, 1972||Mar 26, 1974||Peters R||Electro-surgical handle|
|US3825004 *||Mar 19, 1973||Jul 23, 1974||Durden Enterprises Ltd||Disposable electrosurgical cautery|
|US3828780 *||Mar 26, 1973||Aug 13, 1974||Valleylab Inc||Combined electrocoagulator-suction instrument|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4307720 *||Jul 26, 1979||Dec 29, 1981||Weber Jr Jaroy||Electrocautery apparatus and method and means for cleaning the same|
|US4347842 *||Feb 15, 1980||Sep 7, 1982||Mark Beale||Disposable electrical surgical suction tube and instrument|
|US4562838 *||Jan 23, 1981||Jan 7, 1986||Walker William S||Electrosurgery instrument|
|US4683884 *||Apr 11, 1986||Aug 4, 1987||Md Engineering||Noise attenuating smokeless surgical device|
|US4688569 *||Jun 9, 1986||Aug 25, 1987||Medi-Tech, Inc.||Finger actuated surgical electrode holder|
|US4719914 *||Dec 24, 1986||Jan 19, 1988||Johnson Gerald W||Electrosurgical instrument|
|US4850352 *||Jan 11, 1988||Jul 25, 1989||Johnson Gerald W||Laser-surgical instrument with evacuation tip|
|US4919129 *||Nov 30, 1987||Apr 24, 1990||Celebration Medical Products, Inc.||Extendable electrocautery surgery apparatus and method|
|US4949734 *||Aug 25, 1988||Aug 21, 1990||Gerald Bernstein||Shield for electrosurgical device|
|US4960419 *||Jan 11, 1988||Oct 2, 1990||Lior Rosenberg||Surgical tissue separation system and surgical knife particularly useful therein|
|US4998527 *||Mar 26, 1990||Mar 12, 1991||Percutaneous Technologies Inc.||Endoscopic abdominal, urological, and gynecological tissue removing device|
|US5027792 *||Dec 19, 1989||Jul 2, 1991||Percutaneous Technologies, Inc.||Endoscopic revision hip surgery device|
|US5085657 *||Oct 9, 1990||Feb 4, 1992||Ben Simhon Haim||Electrosurgical instrument|
|US5163937 *||Jan 25, 1990||Nov 17, 1992||Transtech Scientific, Inc.||Waterproof body for cautery devices|
|US5192267 *||Mar 28, 1991||Mar 9, 1993||Nadiv Shapira||Vortex smoke remover for electrosurgical devices|
|US5234428 *||Jun 11, 1991||Aug 10, 1993||Kaufman David I||Disposable electrocautery/cutting instrument with integral continuous smoke evacuation|
|US5242442 *||Sep 18, 1991||Sep 7, 1993||Hirschfeld Jack J||Smoke aspirating electrosurgical device|
|US5246440 *||Sep 13, 1990||Sep 21, 1993||Noord Andrew J Van||Electrosurgical knife|
|US5256138 *||Oct 4, 1990||Oct 26, 1993||The Birtcher Corporation||Electrosurgical handpiece incorporating blade and conductive gas functionality|
|US5312327 *||Oct 9, 1992||May 17, 1994||Symbiosis Corporation||Cautery override safety systems endoscopic electrosurgical suction-irrigation instrument|
|US5314406 *||Oct 9, 1992||May 24, 1994||Symbiosis Corporation||Endoscopic electrosurgical suction-irrigation instrument|
|US5376089 *||Aug 2, 1993||Dec 27, 1994||Conmed Corporation||Electrosurgical instrument|
|US5409484 *||Sep 24, 1990||Apr 25, 1995||Erlich; Frederick||Cautery with smoke removal apparatus|
|US5409487 *||Jan 28, 1994||Apr 25, 1995||Yab Revo-Tech Inc.||Auxiliary tubing probe|
|US5449356 *||Oct 18, 1991||Sep 12, 1995||Birtcher Medical Systems, Inc.||Multifunctional probe for minimally invasive surgery|
|US5451222 *||Mar 16, 1994||Sep 19, 1995||Desentech, Inc.||Smoke evacuation system|
|US5460602 *||Mar 8, 1993||Oct 24, 1995||Shapira; Nadiv||Smoke evacuator for smoke generating devices|
|US5554112 *||Jul 8, 1994||Sep 10, 1996||Birtcher Medical Systems, Inc.||Minimally invasive irrigator/aspirator surgical probe and method of using same|
|US5693044 *||Jul 10, 1995||Dec 2, 1997||Cosmescu; Ioan||Telescopic surgical device and method therefor|
|US5951548 *||Feb 21, 1997||Sep 14, 1999||Stephen R. DeSisto||Self-evacuating electrocautery device|
|US5957919 *||Jul 2, 1997||Sep 28, 1999||Laufer; Michael D.||Bleb reducer|
|US6146353 *||Sep 22, 1998||Nov 14, 2000||Sherwood Services Ag||Smoke extraction device|
|US6458125||Jun 30, 2000||Oct 1, 2002||I. C. Medical, Inc.||Electro-surgical unit pencil apparatus and method therefor|
|US6524307||Oct 5, 2001||Feb 25, 2003||Medtek Devices, Inc.||Smoke evacuation apparatus|
|US6564107 *||Aug 21, 2000||May 13, 2003||Cardiac Pacemakers, Inc.||Coil-less lead system|
|US6747218||Sep 20, 2002||Jun 8, 2004||Sherwood Services Ag||Electrosurgical haptic switch including snap dome and printed circuit stepped contact array|
|US6986768||Feb 4, 2003||Jan 17, 2006||Sherwood Services Ag||Electrosurgical electrode shroud|
|US7060064||Jun 24, 2005||Jun 13, 2006||Sherwood Services Ag||Electrosurgical electrode shroud|
|US7156842||Oct 6, 2004||Jan 2, 2007||Sherwood Services Ag||Electrosurgical pencil with improved controls|
|US7156844||Nov 20, 2003||Jan 2, 2007||Sherwood Services Ag||Electrosurgical pencil with improved controls|
|US7165552||Sep 18, 2003||Jan 23, 2007||Cierra, Inc.||Methods and apparatus for treatment of patent foramen ovale|
|US7186251||Feb 25, 2004||Mar 6, 2007||Cierra, Inc.||Energy based devices and methods for treatment of patent foramen ovale|
|US7235072||Feb 17, 2004||Jun 26, 2007||Sherwood Services Ag||Motion detector for controlling electrosurgical output|
|US7241294||Nov 19, 2003||Jul 10, 2007||Sherwood Services Ag||Pistol grip electrosurgical pencil with manual aspirator/irrigator and methods of using the same|
|US7244257||Nov 5, 2003||Jul 17, 2007||Sherwood Services Ag||Electrosurgical pencil having a single button variable control|
|US7293562||Jun 21, 2004||Nov 13, 2007||Cierra, Inc.||Energy based devices and methods for treatment of anatomic tissue defects|
|US7311701||Jan 23, 2004||Dec 25, 2007||Cierra, Inc.||Methods and apparatus for non-invasively treating atrial fibrillation using high intensity focused ultrasound|
|US7367975||Sep 27, 2004||May 6, 2008||Cierra, Inc.||Energy based devices and methods for treatment of anatomic tissue defects|
|US7393354||Jul 23, 2003||Jul 1, 2008||Sherwood Services Ag||Electrosurgical pencil with drag sensing capability|
|US7500974||Jun 28, 2005||Mar 10, 2009||Covidien Ag||Electrode with rotatably deployable sheath|
|US7503917||Aug 5, 2005||Mar 17, 2009||Covidien Ag||Electrosurgical pencil with improved controls|
|US7582244||Apr 18, 2006||Sep 1, 2009||Covidien Ag||Electrosurgical electrode shroud|
|US7621909||Jun 12, 2008||Nov 24, 2009||Covidien Ag||Electrosurgical pencil with drag sensing capability|
|US7637924||Feb 7, 2005||Dec 29, 2009||Terumo Kabushiki Kaisha||Methods and apparatus for treatment of patent foramen ovale|
|US7674262 *||Feb 8, 2006||Mar 9, 2010||Hoya Corporation||High-frequency treatment tool for endoscope|
|US7794474||Mar 21, 2002||Sep 14, 2010||The Trustees Of Columbia University In The City Of New York||Endovascular flexible stapling device|
|US7828794||Aug 25, 2005||Nov 9, 2010||Covidien Ag||Handheld electrosurgical apparatus for controlling operating room equipment|
|US7879033||Jan 24, 2006||Feb 1, 2011||Covidien Ag||Electrosurgical pencil with advanced ES controls|
|US7914527||Aug 17, 2006||Mar 29, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US7922716||Feb 2, 2005||Apr 12, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of anatomic tissue defects|
|US7935109||Aug 17, 2006||May 3, 2011||Ioan Cosmescu||Multifunctional telescopic monopolar/bipolar surgical device and method thereof|
|US7955327||Jan 8, 2007||Jun 7, 2011||Covidien Ag||Motion detector for controlling electrosurgical output|
|US7959633||Dec 18, 2006||Jun 14, 2011||Covidien Ag||Electrosurgical pencil with improved controls|
|US7972330||Dec 20, 2006||Jul 5, 2011||Terumo Kabushiki Kaisha||Methods and apparatus for closing a layered tissue defect|
|US8016824||Oct 21, 2009||Sep 13, 2011||Covidien Ag||Electrosurgical pencil with drag sensing capability|
|US8021362||Dec 20, 2006||Sep 20, 2011||Terumo Kabushiki Kaisha||Methods and apparatus for closing a layered tissue defect|
|US8038669||Oct 12, 2005||Oct 18, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8038671||Aug 15, 2006||Oct 18, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8038672||Jun 21, 2006||Oct 18, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8038673||Jun 21, 2006||Oct 18, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8048110||Jun 24, 2008||Nov 1, 2011||The Trustees Of Columbia University In The City Of New York||Endovascular flexible stapling device|
|US8052678||Jan 11, 2007||Nov 8, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8057469||Aug 15, 2006||Nov 15, 2011||Terumo Kabushiki Kaisha||Methods and apparatus for treatment of patent foramen ovale|
|US8057470||Aug 30, 2007||Nov 15, 2011||Conmed Corporation||Integrated smoke evacuation electrosurgical pencil and method|
|US8066701||Jun 21, 2006||Nov 29, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8070747||Jun 21, 2006||Dec 6, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8075554||Jun 21, 2006||Dec 13, 2011||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8100902||Jan 30, 2009||Jan 24, 2012||Covidien Ag||Electrode with rotatably deployable sheath|
|US8109274||Apr 11, 2006||Feb 7, 2012||Terumo Kabushiki Kaisha||Methods and electrode apparatus to achieve a closure of a layered tissue defect|
|US8128622||Jul 9, 2007||Mar 6, 2012||Covidien Ag||Electrosurgical pencil having a single button variable control|
|US8133221||Jun 29, 2007||Mar 13, 2012||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of anatomic tissue defects|
|US8162937||Jun 27, 2008||Apr 24, 2012||Tyco Healthcare Group Lp||High volume fluid seal for electrosurgical handpiece|
|US8167905||Jun 17, 2008||May 1, 2012||The Trustees Of Columbia University In The City Of New York||Endovascular flexible stapling device|
|US8231620||Feb 10, 2009||Jul 31, 2012||Tyco Healthcare Group Lp||Extension cutting blade|
|US8235987||Nov 21, 2008||Aug 7, 2012||Tyco Healthcare Group Lp||Thermal penetration and arc length controllable electrosurgical pencil|
|US8353907||Dec 18, 2008||Jan 15, 2013||Atricure, Inc.||Ablation device with internally cooled electrodes|
|US8414576||Jun 12, 2008||Apr 9, 2013||Ioan Cosmescu||Swivel device for electrosurgery pencil and surgical smoke evacuation|
|US8449540||Feb 10, 2009||May 28, 2013||Covidien Ag||Electrosurgical pencil with improved controls|
|US8460289||Jan 23, 2012||Jun 11, 2013||Covidien Ag||Electrode with rotatably deployable sheath|
|US8465485||Sep 16, 2011||Jun 18, 2013||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of patent foramen ovale|
|US8506565||Aug 23, 2007||Aug 13, 2013||Covidien Lp||Electrosurgical device with LED adapter|
|US8591509||Jun 23, 2008||Nov 26, 2013||Covidien Lp||Electrosurgical pencil including improved controls|
|US8597292||Feb 27, 2009||Dec 3, 2013||Covidien Lp||Electrosurgical pencil including improved controls|
|US8632536||Jun 23, 2008||Jan 21, 2014||Covidien Lp||Electrosurgical pencil including improved controls|
|US8636733||Feb 26, 2009||Jan 28, 2014||Covidien Lp||Electrosurgical pencil including improved controls|
|US8663218||Jun 23, 2008||Mar 4, 2014||Covidien Lp||Electrosurgical pencil including improved controls|
|US8663219||Jun 23, 2008||Mar 4, 2014||Covidien Lp||Electrosurgical pencil including improved controls|
|US8668688||Jul 17, 2012||Mar 11, 2014||Covidien Ag||Soft tissue RF transection and resection device|
|US8852181||Sep 14, 2007||Oct 7, 2014||Terumo Kabushiki Kaisha||Energy based devices and methods for treatment of anatomic tissue defects|
|US8915878||Jan 14, 2013||Dec 23, 2014||Atricure, Inc.||Ablation device with internally cooled electrodes|
|US8945124||Aug 6, 2012||Feb 3, 2015||Covidien Lp||Thermal penetration and arc length controllable electrosurgical pencil|
|US8998892||Apr 26, 2010||Apr 7, 2015||Atricure, Inc.||Ablation device with cooled electrodes and methods of use|
|US20110060332 *||Jun 2, 2010||Mar 10, 2011||Ming-Huei Cheng||Electrocautery device with combination of suction and light emission|
|US20110077645 *||Sep 29, 2009||Mar 31, 2011||San-Chih Yang Lin||Electrosurgical Pencil with Synchronous Evacuation Function|
|DE3231624T1 *||Jan 25, 1982||Sep 20, 1984|| ||Title not available|
|DE19850663A1 *||Nov 3, 1998||Mar 15, 2001||Erbe Elektromedizin||Instrument für die Hochfrequenzchirurgie|
|EP0536998A2 *||Oct 8, 1992||Apr 14, 1993||Ethicon Inc.||Monopolar electrosurgical device with irrigation and suction controls for endoscopic surgery|
|EP0545540A1 *||Oct 29, 1992||Jun 9, 1993||Everest Medical Corporation||Electrosurgical instrument with extendable sheath for irrigation and aspiration|
|EP0548275A1 *||Sep 10, 1991||Jun 30, 1993||VAN NOORD, Andrew J.||Electrosurgical knife|
|EP1902682A2||Nov 12, 2004||Mar 26, 2008||Lina Medical CML ApS||Length adjustable electro-surgical pencil with suction means|
|WO1992004873A1 *||Sep 10, 1991||Apr 2, 1992||Noord Andrew J Van||Electrosurgical knife|
|WO1994020031A1 *||Mar 8, 1993||Sep 15, 1994||Nadiv Shapira||Vortex smoke remover for smoke generating devices|
|WO1994020032A1 *||Mar 7, 1994||Sep 15, 1994||Nadiv Shapira||Smoke evacuator for smoke generating devices|
|WO1999001076A1 *||Jul 2, 1998||Jan 14, 1999||Broncus Tech Inc||Bleb reducer|
|WO2005046498A1||Nov 12, 2004||May 26, 2005||Patrick Busch-Madsen||Length adjustable electro-surgical pencil with suction means|