Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS3863339 A
Tipo de publicaciónConcesión
Fecha de publicación4 Feb 1975
Fecha de presentación23 May 1973
Fecha de prioridad26 May 1972
También publicado comoCA981897A1, DE2325749A1
Número de publicaciónUS 3863339 A, US 3863339A, US-A-3863339, US3863339 A, US3863339A
InventoresReaney Albert, Taylor Michael
Cesionario originalStanley Tools Ltd
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Retractable blade knife
US 3863339 A
Resumen
The retractable blade knife of the present invention is designed to have the minimum number of parts and to require the minimum amount of fabrication. The casing is in two parts, namely, a body of molded plastic and a cover of pressed sheet metal, which come apart for removal and replacement of the blade. The operating button has a flange which engages notches in inwardly drawn skirts of the cover, the skirts surrounding a slot through which the button extends. An arched cantilever spring is welded at one end to the blade carrier. The button is mounted on the arch of the spring intermediate its ends. The other end of the spring holds the blade against the base of the blade carrier, location of the blade being by upstanding lugs of the blade carrier engaging edges of the blade tang and a keyhole slot in the blade. There is no screw thread in or on the knife.
Imágenes(2)
Previous page
Next page
Descripción  (El texto procesado por OCR puede contener errores)

United States Patent Reaney et a1. Feb. 4 1975 1 1 RETRACTABLE BLADE KNIFE 3,453,729 7/1969 Larson 30/329 x [75] In e to A b a ey, am; Michael 3,660,895 5/1972 West 30/162 Taylor both of England Primary Examiner-A1 Lawrence Smith [73] Assignee: Stanley Tools Limited, Woodside, Assistant Examiner.l. T. Zatarga Sheffield, England Attorney, Agent, or FirmPrutzman, Hayes, Kalb & 221 Filed: May 23, 1973 The retractable blade knife of the present invention is [30] Forelgn Apphcatlon Prmmy Data designed to have the minimum number of parts and to May 26, 1972 Great Britain 25061/72 require the minimum amount of fabrication. The casing is in two parts, namely, a body of molded plastic [52] US. Cl 30/162, 30/320, 30/336, and a cover of pressed sheet metal, which come apart I 30/338, 30/339 for removal and replacement of the blade. The operat- [51] Int. Cl B26b l /08 ing button has a flange which engages notches in inl l Field Of Search 30/162. 335, 93, wardly drawn skirts of the cover, the skirts surround- 30/336, 337, 338, 339 ing 'a slot through which the button extends. An arched cantilever spring is welded at one end to the 1 References Cited blade carrier. The button is mounted on the arch of UNITED STATES PATENTS the spring intermediate its ends. The other end of the 174 417 3/1876 Evans 30/162 spring holds the blade against the base of the blade 2.0161107 10/1935 Forsberg 30/335 ux carrier, location Of the blade being y upstanding lugs 2,548,797 4/1951 Ingwer 6161, 30/162 of the blade carrier g g g edges Of the blade g 2,608,890 9/1952 Andrews 30/162 X and a keyhole slot in the blade. There is no screw 2,870,537 1/1959 Ortner 30/162 thread in or on the knife. 3,314,148 4/1967 FOClll'l'll 30/162 3,316,635 5/1967 Merrow e1. a1. 30/162 13 Claims, 4 g Flgures n 16 42 )3 41 1 2 38 14 4 26 28 5 i i a .11.! 4 I 23 1 2044 I5 30 49 PATENTED FEB 75 SHEET 1 OF 2 PATENTEUFEB 4191s SHEET 2 [IF 2 depression of button 21 for extension or retraction of the blade 11.

It is pointed out that the spring 22 carries out all three functions of firstly attaching the button 21 to carrier 13,;secondly engaging the blade 11 to hold the blade 11 in position relative to the carrier member 13 and thirdly operatingthe facility for reliable locking of the blade 11 in the different positions and is the only I spring in the knife 10.

It is also pointed out that-no part of theknife is screw-threaded. v

The body 14 is formed with a facility in the form of a hole 49 to allow for hanging the knife 10 on a hook, not shown, connection of the knife to a keyring, not shown, attachment of the knife to a string anchorage, not shown, or the like.

We claim:

l. A retractable blade knife comprising a casing having a slot in one side thereof, a blade, a slidable blade carrier mounting the blade and engaging at least one edge thereof, an operating button projecting through said side slot and a leaf spring associated with the operatingbutton for biasing thebutton into selective locking engagement with the casing and for removably holding the blade on the blade carrier, said casing comprises a body having a slot in'one end through which the blade can be extended and 'retracted'and a cover detachably attachable to the body to enclose the blade carrier and spring, wherein the cover-has two curled opposite end portions which respectively hook over two corresponding end portions of the body, firstly one end portion of the cover being hooked over one end portion of the body and then the cover being pivotable thereabout until the other end portion of the cover hooks over the other end portion of the body, whereby the cover can snap into place when attached to the body.

2. A retractable blade knife as claimed in claim 1 wherein the slot through which the operating button projects is in the cover.

3. A retractable blade knife as claimed in claim 1 wherein the body is of molded plastics material and'the cover is of sheet metal.

4. A retractable blade knife as claimed in claim 1 wherein two, sides of the body have rebates for the cover to nest therein.-

5. A retractable blade knife as claimed in claim 1 wherein the spring is'an arched cantilever spring which a is permanently attached to the blade carrier.

6. A retractable blade knife as claimed in claim 1 wherein the operating button is biased by the leaf spring into engagement with detents in the casing to lock the blade selectively not only in the extended and retracted positions but also in an intermediate position.

7. A retractable blade knife as claimed in claim 1 wherein no part of the knife is' screw-threaded.

8. A retractable blade knife as claimed in claim 1 wherein the casing is formed with a facility in the form of a hole to allow for hanging the knife on a hook,- con- 4 nection of the knife to a key ring, attachment of the knife to a string anchorage, or the like.

9. A retractable blade knife as claimed in claim 1" wherein the slot through which the operating button projects is in the cover;

wherein said cavity is large enough to provide'additional blade storage space; I

wherein the body is of molded plastics material and the cover is of sheet metal;

wherein two sides of the body have rebates .for the cover to nest therein;

wherein the spring is an arched cantilever spring which is permanently attached to the blade carrier;

wherein the operating button is biased by the leaf spring into engagement withthe detents in the casing to lock the blade selectively not only in the extended and retracted positions but also in an intermediate position;

wherein a plurality of edges of the blade are engaged by the blade carrier to locate the blade in a given 1 position relative to the blade carrier; wherein a tang ofthe blade is abuttingly engaged by a rearward pair of lugs and a forward pair of lugs, said pairs of lugs forming part of the blade carrier; the rear end'of the tang is abuttingly engaged by a forwardly directed lug ofthe blade carrier; and the rear end of a keyhole slot in, the tang is abuttingly engaged'by arearwardly directed lug of the blade carrier; the leaf spring pressing the blade against a base of the blade carriensaid lugs all upstanding from the base of the-blade carrier; wherein, for releasably locking the blade and blade carrier as a unit releasably in different positions, including at least the extended position and the retracted position, relative to the casing, the button is formed with a flange'which can seat in between any one of three pairs of detent-forming notches which are formed in two inwardly drawn skirts of the cover, the skirts extending along the sides of the slot through which the button projects; 1 wherein the button is attached to an arched portion of .the spring intermediate positions at which the' spring respectively is attached to the blade carrier and engages the blade, so that the flange can be unseated by depression of the button for extension or retraction of the blade;

wherein no part of the knife is screw-threaded; and

wherein the casing is formed with a facility in the 11. A retractable blade knife as claimed in claim 10 wherein a tang of the blade is abuttingly engaged by a rearward pair of lugs and a forward pair of lugs, said pairs of lugs forming part of the blade carrier; the rear end of the tang is abuttinglyengag'ed by a forwardly di rected lug of the blade carrier; and the rear end of a keyhole slot in the tang is abuttingly engaged by a rearwardly directed lug of the blade carrier; the leaf spring pressing the blade against a base of the blade carrier; said lugs all upstanding from the base of the blade carrier.

. l RETRACTABLE BLADE KNIFE BACKGROUND OF INVENTION SUMMARY 'OF THE INVENTION The retractable blade knife of the present invention comprises a casing, a blade, a slidable blade carrier, an operating button and a leaf spring, wherein the operating button projects through a slot in one side of the casing, wherein the operating button is connected to the blade carrier by the leaf spring, wherein the blade carrier engages at least one edge of the blade for locating theblade, wherein the operatingbutton is biased by the leaf spring into engagement with detents in the casing to lock the blade selectively in extended and retracted positions, and wherein the casing is adapted to be opened for removal and replacement of the blade. The retractable blade knife of the present invention is characterised in. that the leaf spring bears against one face of the blade to hold the blade removably tothe blade carrier. I 1

Preferably the casing comprises a body and a cover, the body having in one end a slot through which the blade can be'extended and retracted, the body also having a cavity therein for the blade when retracted and for the blade carrier, the cavity'having an opening at one side of the body for removal oftheblade carrier together with the blade, the cover being detachably attachable to the body to close the cavity opening, and

the cavity. providing an additional blade storage space.

Preferably the slot through which the operating button projects is in the cover. I

Preferably. the operating button is biased by the leaf spring into engagement with the detents in the casing to lock the blade selectively not only in the extended and retracted positions but also in'an intermediate positioll. 1

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates in side elevation a preferred retractable blade knife in accordance with the invention, showing the blade fully retracted;

FIG. 2 is a similar view at the same scale of the knife illustrated in FIG. 1 but with the blade fully extended and the cover removed and with a spare blade in the cavity;

FIG. 3 is a section on line Illlll in FIG. 2 but at twice the scale of FIGS. 1 and2; and

FIG. 4 is an exploded view of the knife at the same 7 scale as FIG. 3.

DESCRIPTION OF- THE PREFERRED EMBODIMENT 11. The cover 15 is detachably attachable to the body 14 to close the cavity opening 19. A- manually operable button 21 is connected to the blade carrier 13 by being attached to a light, arched cantilever leaf spring 22 which is itself permanently attached at 23 by being welded to the blade carrier 13 and which engages one face of the retractable blade 11 at 24 to hold the blade 11 removably to the blade carrier 13. The button 21 projects through an elongate slot 25 in the cover 15 at one side of the casing 12 for manual extension and retraction of the blade 11. The cavity 18 provides additional blade storage space for a spare blade 26 as shown place when attached to the body 14. Sides 31 and-32 of the body 14 have rebates 33 for the cover 15 to nest therein. The cover 15 can be detached from the body 14. by simply pushing the cover end portion 28 up so as to unhook the cover end portion 28 from body end portion and then unhooking cover end portion 27 from body end portion 29.

Edges of the blade 11 are engaged by the blade carrier 13 to locate the blade 11 in the given position as shown relative to the blade carrier 13. (The blade carrier 13 is also of pressed sheet metal.) More particularly: a tang 34 of the blade 11 is abuttingly engaged by a rearward pair of lugs 35 and a forward pair of lugs 36, the lugs 35 and 36 forming part of the blade carrier 13; the rear end 37 of the tang-34 is abuttingly engaged by a forwardly directed lug 38 of the blade carrier 13; and

the rear end 39 of a keyhole slot 40 in the tang 34 is abuttingly engaged by a rearwardly directed lug 41 of the blade carrier 13. The leaf spring 22 presses the blade 11 against a base 42 of the carrier 13. The blade 11 can be detached from the carrier 13 (and reattached thereto or replaced by the spare blade 26) when the blade carrier 13 has been removed, together with the blade 11, from the cavity 18. The arrangement of the lugs 38 and 41' so that each is directed towards the other provides positive, bi-directional blade location. The lugs 35, 36,38 and 41 are all upstanding from the base 42. Of course, the necessary clearance is provided between the blade 1 1 and the lugs 35, 36, 38 and 41 for easy removal and replacement of the blade 11.

The free end of the spring 22 is lightly loaded towards the base 42. The dimensions, geometry and properties of the spring 22 are sov selected as to allow the blade tang 34 to be easily pushed between the base 42 and the spring 22, until the blade 11 becomes located-and lightly retained by the lugs 35, 36, 38 and 41.

When putting the blade 11 and carrier 13, already assembled together, into the casing 12, the sharp end 1 1a of the blade 11 is fed through the cavity opening 19 into the cavity 18 and then through the slot 17, whereafter the carrier member 13 is allowed to fall into the cavity 18.

For releasably locking the blade 11 and blade carrier 13 as a unit in different positions, including a fully extended position, a fully retracted position and an intermediate position, relative to the casing 12, the button 21 is formed with a a flange 43 which can seat in between any one of three'pairs of notches 44, 45 and 46 LII the blade.

projects.

13. A retractable blade knife as claimed in claim 12 wherein the button is attached to an arched portion of the spring intermediate positions at which the spring respectively is attached to the blade carrier and engages the blade, so that the flange can be unseated by depression of the button for extension or retraction of

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US174417 *3 Ene 18767 Mar 1876 Improvement in pocket-knives
US2016107 *3 Ene 19351 Oct 1935Forsberg Harold SSaw handle
US2548797 *20 Nov 194610 Abr 1951Cons Sewing Machine & Supply CSeam ripping knife
US2608890 *10 Jun 19482 Sep 1952Albert AndrewsResilient casing with slidable tool
US2870537 *14 Mar 195827 Ene 1959Samuel OrtnerPocket safety knife
US3314148 *17 Feb 196618 Abr 1967Foellmi Albert JRetractible pocket blade holder
US3316635 *6 May 19642 May 1967Stanley WorksScoring knife
US3453729 *17 Abr 19678 Jul 1969Larson George GKnife
US3660895 *11 Ene 19719 May 1972Stanley Works New Britain TheRetractable utility knife
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US4226020 *1 Feb 19797 Oct 1980Stanley Mabo S.A.Knife and blade advance and locking mechanism therefor
US4241496 *23 Mar 197930 Dic 1980Dracon IndustriesBlade storage and selectable force impact termination tool
US4621425 *5 Oct 198411 Nov 1986Stanley WorksRetractable knife handle
US4660287 *1 Nov 198528 Abr 1987Decker John RKnife with replaceable blade
US5121544 *14 Jun 199116 Jun 1992The Stanley Works LimitedReplaceable blade knife
US5263972 *11 Dic 199223 Nov 1993Stryker CorporationSurgical handpiece chuck and blade
US5370654 *18 Jun 19936 Dic 1994Leonard BloomDisposable guarded finger scalpel for inserting a line in a patient and method of use thereof
US5371948 *16 Dic 199313 Dic 1994Timothy K. LiffitonKnives
US5439472 *14 Jul 19938 Ago 1995Stryker CorporationSurgical handpiece chuck and blade
US5468247 *19 Oct 199421 Nov 1995Stryker CorporationSaw blade for powered medical handpiece
US5475925 *21 Mar 199419 Dic 1995Newman; Philip H.Three-piece retractable-bladed knife
US5493781 *21 Oct 199327 Feb 1996Kai R&D Center Co., Ltd.Cutter
US5545175 *8 Ago 199413 Ago 1996Leonard BloomDisposable quarded finger scalpel for inserting a line in a patent and lock off therefor
US5702415 *8 Sep 199530 Dic 1997Stryker CorporationChuck and blade for powered medical handpiece
US5749886 *8 Abr 199612 May 1998Leonard BloomDisposable guarded finger scalpel for inserting a line in a patient and blade therefor
US6161290 *29 Dic 199719 Dic 2000Kyoto Measuring Instruments Corp.Utility knife
US6745474 *17 Dic 20028 Jun 2004Chien Kai HuangBlade pushing device of cutting knives
US7308896 *21 Jun 200518 Dic 2007Emergency Medical Devices, Inc.Combination tracheal hook and scalpel device
US7384421 *30 Sep 200510 Jun 2008Sherwood Services AgSlide-activated cutting assembly
US74421947 May 200728 Oct 2008Covidien AgBipolar forceps having monopolar extension
US74456217 May 20074 Nov 2008Covidien AgBipolar forceps having monopolar extension
US745897227 Mar 20072 Dic 2008Covidien AgElectrosurgical electrode having a non-conductive porous ceramic coating
US74818107 May 200727 Ene 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
US7500314 *15 Feb 200610 Mar 2009Josef LuberHoof knife with moveably mounted blade
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 Ene 20087 Abr 2009Covidien AgVessel sealing instrument
US754087219 Sep 20052 Jun 2009Covidien AgArticulating bipolar electrosurgical instrument
US755331221 Dic 200730 Jun 2009Covidien AgVessel sealing instrument
US7574804 *14 Feb 200618 Ago 2009Kai U.S.A., Ltd.Knife with sliding blade and disengageable deployment mechanism
US75820876 Abr 20011 Sep 2009Covidien AgVessel sealing instrument
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 Ago 20058 Dic 2009Covidien AgSingle action tissue sealer
US76416534 May 20065 Ene 2010Covidien AgOpen vessel sealing forceps disposable handswitch
US765500718 Dic 20062 Feb 2010Covidien AgMethod of fusing biomaterials with radiofrequency energy
US768680410 Ene 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
US77226078 Nov 200625 May 2010Covidien AgIn-line vessel sealer and divider
US77317178 Ago 20068 Jun 2010Covidien AgSystem and method for controlling RF output during tissue sealing
US774461518 Jul 200629 Jun 2010Covidien AgApparatus and method for transecting tissue on a bipolar vessel sealing instrument
US775390929 Abr 200413 Jul 2010Covidien AgElectrosurgical instrument which reduces thermal damage to adjacent tissue
US77669109 Nov 20063 Ago 2010Tyco Healthcare Group LpVessel sealer and divider for large tissue structures
US77714256 Feb 200610 Ago 2010Covidien AgVessel sealer and divider having a variable jaw clamping mechanism
US777603613 Mar 200317 Ago 2010Covidien AgBipolar concentric electrode assembly for soft tissue fusion
US77760377 Jul 200617 Ago 2010Covidien AgSystem and method for controlling electrode gap during tissue sealing
US778987829 Sep 20067 Sep 2010Covidien AgIn-line vessel sealer and divider
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 Dic 2010Covidien AgApparatus and method for electrode thermosurgery
US784616129 Sep 20067 Dic 2010Covidien AgInsulating boot for electrosurgical forceps
US785781218 Dic 200628 Dic 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 Ago 200415 Feb 2011Covidien AgVessel sealing wave jaw
US788753619 Ago 200915 Feb 2011Covidien AgVessel sealing instrument
US789687812 Mar 20091 Mar 2011Coviden AgVessel sealing instrument
US790982317 Ene 200622 Mar 2011Covidien AgOpen vessel sealing instrument
US792271812 Oct 200612 Abr 2011Covidien AgOpen vessel sealing instrument with cutting mechanism
US792295328 Sep 200612 Abr 2011Covidien AgMethod for manufacturing an end effector assembly
US793164914 Feb 200726 Abr 2011Tyco Healthcare Group LpVessel sealing instrument with electrical cutting mechanism
US793505214 Feb 20073 May 2011Covidien AgForceps with spring loaded end effector assembly
US794704119 Ago 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
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
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 Dic 2011Tyco Healthcare Group LpRadiofrequency fusion of cardiac tissue
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 Abr 2012Covidien AgOpen vessel sealing instrument
US81629405 Sep 200724 Abr 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US816297315 Ago 200824 Abr 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US819243321 Ago 20075 Jun 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US819747910 Dic 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 Ago 2012Tyco Healthcare Group LpInsulating boot with mechanical reinforcement for electrosurgical forceps
US823599324 Sep 20087 Ago 2012Tyco Healthcare Group LpInsulating boot for electrosurgical forceps with exohinged structure
US823602523 Sep 20087 Ago 2012Tyco Healthcare Group LpSilicone insulated electrosurgical forceps
US82412825 Sep 200814 Ago 2012Tyco Healthcare Group LpVessel sealing cutting assemblies
US824128317 Sep 200814 Ago 2012Tyco Healthcare Group LpDual durometer insulating boot for electrosurgical forceps
US82412845 Ene 200914 Ago 2012Covidien AgVessel sealer and divider with non-conductive stop members
US825199623 Sep 200828 Ago 2012Tyco Healthcare Group LpInsulating sheath for electrosurgical forceps
US82573527 Sep 20104 Sep 2012Covidien AgBipolar forceps having monopolar extension
US825738715 Ago 20084 Sep 2012Tyco Healthcare Group LpMethod of transferring pressure in an articulating surgical instrument
US82679354 Abr 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
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 Ago 200827 Nov 2012Covidien LpTissue fusion jaw angle improvement
US83337654 Jun 201218 Dic 2012Covidien AgVessel sealing instrument with electrical cutting mechanism
US834894829 Jul 20108 Ene 2013Covidien AgVessel sealing system using capacitive RF dielectric heating
US836107128 Ago 200829 Ene 2013Covidien AgVessel sealing forceps with disposable electrodes
US836107219 Nov 201029 Ene 2013Covidien AgInsulating boot for electrosurgical forceps
US836670927 Dic 20115 Feb 2013Covidien AgArticulating bipolar electrosurgical instrument
US838275426 Ene 200926 Feb 2013Covidien AgElectrosurgical forceps with slow closure sealing plates and method of sealing tissue
US839409512 Ene 201112 Mar 2013Covidien AgInsulating boot for electrosurgical forceps
US839409611 Abr 201112 Mar 2013Covidien AgOpen vessel sealing instrument with cutting mechanism
US842550430 Nov 201123 Abr 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 Ene 200930 Jul 2013Covidien AgTissue sealer with non-conductive variable stop members and method of sealing tissue
US852389810 Ago 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
US855109130 Mar 20118 Oct 2013Covidien AgVessel sealing instrument with electrical cutting mechanism
US85684447 Mar 201229 Oct 2013Covidien LpMethod of transferring rotational motion in an articulating surgical instrument
US859150616 Oct 201226 Nov 2013Covidien AgVessel sealing system
US859729631 Ago 20123 Dic 2013Covidien AgBipolar forceps having monopolar extension
US859729729 Ago 20063 Dic 2013Covidien AgVessel sealing instrument with multiple electrode configurations
US862301723 Jul 20097 Ene 2014Covidien AgOpen vessel sealing instrument with hourglass cutting mechanism and overratchet safety
US86232769 Feb 20097 Ene 2014Covidien LpMethod and system for sterilizing an electrosurgical instrument
US86367619 Oct 200828 Ene 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 Abr 201011 Mar 2014Covidien AgIn-line vessel sealer and divider
US867911423 Abr 201025 Mar 2014Covidien AgIncorporating rapid cooling in tissue fusion heating processes
US86966679 Ago 201215 Abr 2014Covidien LpDual durometer insulating boot for electrosurgical forceps
US873444319 Sep 200827 May 2014Covidien LpVessel sealer and divider for large tissue structures
US874090120 Ene 20103 Jun 2014Covidien AgVessel sealing instrument with electrical cutting mechanism
US876474828 Ene 20091 Jul 2014Covidien LpEnd effector assembly for electrosurgical device and method for making the same
US878441728 Ago 200822 Jul 2014Covidien LpTissue fusion jaw angle improvement
US87938814 Feb 20095 Ago 2014Stanley Black & Decker, Inc.Utility knife with blade lock
US879527428 Ago 20085 Ago 2014Covidien LpTissue fusion jaw angle improvement
USRE448347 Dic 20128 Abr 2014Covidien AgInsulating boot for electrosurgical forceps
Clasificaciones
Clasificación de EE.UU.30/162, 30/339, 30/320, 30/338, 30/336
Clasificación internacionalB26B5/00
Clasificación cooperativaB26B5/001
Clasificación europeaB26B5/00A