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 publicaciónUS2556783 A
Tipo de publicaciónConcesión
Fecha de publicación12 Jun 1951
Fecha de presentación16 May 1950
Fecha de prioridad16 May 1950
Número de publicaciónUS 2556783 A, US 2556783A, US-A-2556783, US2556783 A, US2556783A
InventoresFrederick J Wallace
Cesionario originalAmerican Cystoscope Makers Inc
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Surgical forceps
US 2556783 A
Resumen  disponible en
Imágenes(1)
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

June 12, 1951 F. J. WALLACE SURGICAL FORCEPS Filed May 16, 1950 INVENTOR. FREDERICK J. WALLACE /l ATTORNEY.

Patented June 12, 1951 r UNITED STATES PATENT QFFICE I I r 2,556,783

SURGICAL FonoiiPs Frederick J. Walla-ce, New York, N. Y., assignor to American 'Gystoscope Maker-s, Inc., New vYork, N. Y., a corporation of New York Application May '16, 1950., 'Serial No. 162,241

This invention mates "to surgical iorceps, and in one oi its more specific aspects, to "a forceps for removing kidney stones that may be lodged in theureter.

Kidney stones or calculi are usually formed in the kidney or kidney pelvis and may at times find their way into the ureter. This is a relatively narrow passage connecting a kidney and the bladder, and, due to its tortuousness and irregularities in width, small stones frequently become embedded therein in the course of descending irom the kidney. Substances in the urine are deposited on the stones with the result that the stones may eventually become of such size as to block off flow of urine from the kidney, thereby causing intense .pain and resulting in fatality unless the stones are removed promptly. Under these circumstances, it is necessary to remove kidney stones from the ureter either by operating or by means of a forceps which is intro- 8 Claims. (01. 128 321) duced into the ureter through the urethra with the aid of a cystoscopicinstrument.

There have been several advances in the art of ureteral stone-removing forceps in comparatively recent years. Among present-day forceps is one that consistsof a tubular element having a filament attached to its distal end to form a loop therewith. The stone is snared in the loop by manipulating the instrument and is then moved downwardly through the ureter. Forceps of this type have met with varying degrees of success due to the difficulties encountered in first snarin the stone and subsequently retaining the stone in the loop.

Another formof known stone -'removing'forceps includes a plurality of wires that may be deformed or expanded after insertion into the ureter to for rn a stone-receiving basket. Forceios of this type are inherently dangerous as one or more -'of the wires may be loosened from the carrier or broken while in the ureter. Such wires may perforate or 'cut the ureter, resultin in a serious condition endangering the life of the patient. Also, stones grasped in an inflexible wire basket may tear, rupture or otherwise damage the ureter in the course of withdrawal.

A surgical "forceps constructed in accordance with this invention eliminates the dangers inherent in conventional instrumentalities usedfor the same purpose. The forceps of this inventionhas its parts'so constructed and arranged as to be readily introduced into a ureter, then mampulat'ed-so as to receive and retain a'kidney stonelod'ged in the ureter, and finally withdrawn with the stone with a minimum of pain on 'the part of the patient.

It is an important object of the invention to provide a ureteral stone-removing forceps having improved features of construction.

' Another obiect of the invention is to provide a surgical instrumentality of the character indicated, adapted to be readily inserted into a ureter, engage a kidney stone lodged in the ureter, and "convey the stone downwardly through the ureter without undue discomfort or danger to the patient.

The invention has for a further object the provision of a stone-removing forceps that is capable of performing its intended functions "in an 'efie'cti've and trouble-free manner.

To the end that the foregoing objects may be attained, a surgical forceps constructed in accordance with this invention preferably comprises a tubular member closed at its distal end, and consisting of a forward portion, a rearward portion, and an intermediate portion, at least therearward and intermediate portions being flexible. The intermediate portion is provided with a plurality of circumferentially spaced, longitudinal slots, the parts of the intermediate portion 'between'the extremities'of the slots being adaptedto be flexed outwardly to form a "stonereceiving "and -retaining basket. A flexible rod positioned in the tubular member is secured at one end to the forward portion of the tubular member, and at its other end to a plunger that is movable longitudinally and angularly in'a cylinder which is secured to the rear end of the tubular'member. "The-cylinder has a longitudinal s lot'that mergeswith its rearward extremity and a series of spaced lateral slots that merge with the longitudinal 'slo't. A pin projecting radially beyond the peripheral surface of the plunger is adapted to be moved into and out registry with any selected one of the slots in the cylinder to thereby adjustably positicnthe plungenwith respect to the cylinder and control the flexing of -thebasket fm-rr1in parts of the intermediate portion of the tubular member. Manipulation "of the plunger is facilitated by providing the s'amewith an actuating knob that extends'beyondthe cylinder.

While the tubular member may be made of various materials 'within the purview of this inventlon, Ifind that when this member is made of certain-synthetic plastics, including apo'lyvinyl compound, .preferably a copolymer of vinyl chloride and 'vinyl'ac'etate, .orpolyethylene, it is,

especiallywell'suited'ror the purposes of the in- 3 vention. These synthetic plastics afford a number of worthwhile advantages over conventional materials when used for the tubular member of my forceps. For one thing, polyvinyl compounds and polyethylene are chemically inert and resistant to acids and alkalis. Tubing made of these plastics is smooth, non-irritating and non-toxic When positioned in a body passage. Further, tubing extruded or molded from these plastics possesses requisite flexibility and tensile strength, all of which characteristics contribute appreciably to the value of the plastics as suitable materials for the tubing of the forceps.

The objects, as well as the advantages attainable by the practice of this invention, will be apparent to persons skilled in the art upon reference to the following detailed description, taken in conjunction with the annexed drawing, which respectively describe and illustrate a surgical forceps constructed in accordance with the invention.

In the drawing:

Figure l is a View in side elevation of a forceps embodying the invention, parts being broken away for better illustration;

Figure 2 is a top plan view of the forceps shown in Figure 1;

Figure 3 is a central longitudinal cross-sectional view of the forceps shown in Figures 1 and 2 with the parts in another relative position;

Figure 4 is a View taken along line 44 of Figure 1; and

Figure 5 is a view taken along line 55 of Figure 3.

Referring now to the drawing, wherein like reference numerals denote corresponding parts throughout the several views, numeral l0 generally indicates a flexible tubular member preferably made of a copolymer of vinyl chloride and vinyl acetate, or polyethylene, and having a central passage E2. The tubular member consists of a forward portion is terminating at its distal end in a rounded tip it, an elongated rearward portion 18 and an intermediate portion 20. The intermediate portion is provided with a plurality of circumferentially spaced longitudinal slots 22. The parts of the intermediate portion between the extremities of the slots are in the nature of basket-forming strips or wings 2i that are convex outwardly.

A hollow cylinder 25, having a central bore 28, is secured to the rear end of the tubular member. The cylinder has a longitudinal slot which merges with its rear extremity and a pair of lateral slots 32 that merge with slot 30. The cylinder is also provided with an end slot or notch 34.

A plunger 35 is reciprocable in bore 28 and has a knurled knob 38 for manual actuation. The plunger carries a radially projecting locking pin 60 which is adapted to ride in slot 36 and register with any selected one of slots 32 and 34, depending upon the xial and angular position of the plunger with respect to the cylinder.

A flexible rod '32, slidable in passage [2, has an enlarged head as at its forward end. As is best shown in Figure 3, the forward portion of the rod is embedded in a mass of a suitable material 46 which serves to anchor the rod to portion I4 of the tubular member. The rod is connected at its rear end to plunger 36.

The manner of using the forceps will now be briefly outlined. It is first assumed that the parts are in the relative position shown in Figure I, with pin riding in slot 36. The forceps is inserted through the urethra with the aid of a suitable cystoscopic instrument, such as the one disclosed in my Patent No. 2,469,906 dated May 10, 1949, and is introduced into the ureter by way of the ureteral orifice. The forceps is slowly moved up the ureter until intermediate portion 20 of the tubular member is opposite the kidney stone, as indicated by a previously taken X-ray photograph. Plunger 36 is retracted to flex parts 24 outwardly to a position such as shown in Figure 5. The forceps is rotated slowly to engage the stone between parts 26, whereupon the plunger is protracted with respect to the cylinder so that the stone is retained by the forceps. The forceps is thenwithdra-wn slowly from the ureter.

From the foregoing, it is believed that the construction, operation, and advantages of my present invention will be readily comprehended by persons skilled in the art. It is to be clearly understood, however, that various changes in the apparatus set forth above may be made without departing from the scope of the invention, it being intended that all matter contained in the description or shown in the drawing shall be interpreted as illustrative only and not in a limiting sense.

I claim:

1. In a surgical forceps of the character described, a tubular member having a plurality of circumferentially arranged slots formed therein intermediate its ends, the portions of the member between the extremities of the slots being adapted to be flexed outwardly beyond adjacent portions to form a stone-receiving and retaining basket, a flexible member in the tubular member and secured to the forward end thereof, a hollow cylinder secured to the rear end of the tubuu'ar mem ber, a plunger in the cylinder and movable longitudinally and angularly with respect thereto, said plunger being connected to the rear end of the flexible member, and means for maintaining the plunger in any selected one of a plurality of longitudinal and angular positions relative to the cylinder.

2. A surgical forceps in accordance with claim 1 wherein the tubular member comprises a copolymer of vinyl chloride and vinyl acetate.

3. A surgical forceps in accordance with claim 1 wherein the tubular member comprises polyethylene.

4. In a surgical forceps of the character described, a tubular member having a plurality of circumferentially arranged slots formed therein intermediate its ends, the portions of the member between the extremities of the slots being adapted to be flexed outwardly beyond adjacent portions to form a stone-receiving and -retaining basket, a flexible member in the tubular member'and secured to the forward end thereof, a hollow cylinder secured to the rear end of the tubular member, a plunger in the cylinder and movable longitudinally and angularly with respect thereto, said plunger being connected to the rear end of the flexible member, and means for maintaining the plunger in any selected one of a plurality of longitudinal and angular positions relative to the cylinder, said means comprising a pin projecting generally radially beyond the peripheral surface of the plunger and registrable with any one of a plurality of slots formed in the portion, a rearward portion, and an intermediateportion, at least the rearward and intermediate portions being flexible, said intermediate portion having a plurality of circumferentially arranged longitudinal slots formed therein, the parts of the intermediate portion between the extremities of the slots being adapted to be flexed outwardly beyond adjacent portions to form a stone-receiving and -retaining basket, a flexible rod in the tubular member and secured to the forward end thereof, a hollow cylinder secured to the rear end of the tubular member, a plunger in the cylinder and movable longitudinally and angularly with respect thereto, said plunger being connected to the rear end of the rod, means exterior the cylinder for imparting movement to the plunger with respect to the cylinder, and means for maintaining the plunger in any selected one of a plurality of longitudinal and angular positions with respect to the cylinder.

6. In a surgical forceps of the character described, a tubular member having a plurality of circumferentially arranged slots formed therein intermediate its ends, the portions of the member between the extremities of the slots being adapted to be flexed outwardly beyond adjacent portions to form a stone-receiving and -retaining basket, a flexible member in the tubular member and secured to the forward end thereof, a hollow cylinder secured to the rear end of the tubular member, said cylinder having a longitudinal slot and a plurality of spaced lateral slots merging with the longitudinal slot, a plunger in the cylinder and movable longitudinally and angularly with respect thereto, said plunger being connected to the rear end of the flexible member, and a pin carried by and projecting generally radially beyond the peripheral surface of the 6 plunger and registrable with any selected one of said cylinder slots.

7. In a surgical forceps of the character described, a tubular member comprising a forward portion, a rearward portion, and an intermediate portion, at least the rearward and intermediate portions being flexible, said intermediate portion having a plurality of circumferentially arranged longitudinal slots formed therein, parts of the intermediate portion between the extremities of the slots being adapted to be flexed outwardly beyond adjacent portions to form a stone-receiving and -retaining basket, a flexible rod in the tubular member and secured to the forward end thereof a hollow cylinder secured to the rear end of the tubular member, said cylinder having a longitudinal slot merging with its rearward extremity and a plurality of spaced lateral slots merging with the longitudinal slot, a plunger in the cylinder and movable longitudinally and angularly with respect thereto, said plunger being connected to the rear end of the flexible rod, a pin carried by and projecting generally radially beyond the peripheral surfaceof the plunger and registrable with any selected one of said cylinder slots, and means exterior the cylinder for imparting movement to the plunger with respect to the cylinder.

8. A surgical forceps in accordance with claim '7 wherein the tubular member comprises a plastic material selected from the group consisting of polyethylene and a copolymer of vinyl chloride and vinyl acetate.

FREDERICK J. WALLACE.

No references cited.

Otras citas
Referencia
1 *None
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US2816552 *29 Jun 195417 Dic 1957Roy D HoffmanTeat bistoury with improved cutter blade adjusting means
US2943626 *28 Ene 19585 Jul 1960Dormia EnricoInstruments for the extraction of foreign bodies
US3108593 *13 Mar 196129 Oct 1963Jacob A GlassmanSurgical extractor
US3108595 *8 Ago 196029 Oct 1963Overment Alfred PRetention catheter
US3799172 *25 Sep 197226 Mar 1974Szpur RRetention catheter
US4807626 *30 Dic 198528 Feb 1989Mcgirr Douglas BStone extractor and method
US4950265 *17 Oct 198821 Ago 1990Hart Enterprises, Inc.Arming device for a medical instrument
US4966604 *23 Ene 198930 Oct 1990Interventional Technologies Inc.Expandable atherectomy cutter with flexibly bowed blades
US4968300 *5 Oct 19886 Nov 1990Abiomed Limited PartnershipBalloon stretch mechanism
US5192291 *13 Ene 19929 Mar 1993Interventional Technologies, Inc.Rotationally expandable atherectomy cutter assembly
US5203773 *18 Oct 199120 Abr 1993United States Surgical CorporationTissue gripping apparatus for use with a cannula or trocar assembly
US5224945 *13 Ene 19926 Jul 1993Interventional Technologies, Inc.Compressible/expandable atherectomy cutter
US5224949 *13 Ene 19926 Jul 1993Interventional Technologies, Inc.Camming device
US5387196 *19 May 19927 Feb 1995United States Surgical CorporationCannula assembly having conductive cannula
US5618309 *10 Nov 19948 Abr 1997Green; David T.Cannula assembly having conductive cannula
US5817062 *27 Jun 19966 Oct 1998Heartport, Inc.Trocar
US5857999 *5 May 199512 Ene 1999Imagyn Medical Technologies, Inc.Small diameter introducer for laparoscopic instruments
US5957932 *4 May 199828 Sep 1999Boston Scientific CorporationCalculus removal
US6096053 *22 May 19981 Ago 2000Scimed Life Systems, Inc.Medical retrieval basket
US6099534 *23 Abr 19988 Ago 2000Scimed Life Systems, Inc.Releasable basket
US61686036 Nov 19972 Ene 2001Boston Scientific CorporationSurgical extractor
US617431823 Abr 199816 Ene 2001Scimed Life Systems, Inc.Basket with one or more moveable legs
US6183482 *23 Feb 19986 Feb 2001Scimed Life Systems, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US620355219 Mar 199920 Mar 2001Cook Urological IncorporatedMinimally invasive medical retrieval device
US622461222 Abr 19991 May 2001Scimed Life Systems, Inc.Atraumatic medical retrieval device
US628045124 May 200028 Ago 2001Scimed Life Systems, Inc.Releasable basket
US631926224 Jun 199920 Nov 2001Boston Scientific CorporationCalculus removal
US63480566 Ago 199919 Feb 2002Scimed Life Systems, Inc.Medical retrieval device with releasable retrieval basket
US635026626 Abr 200026 Feb 2002Scimed Life Systems, Inc.Hybrid stone retrieval device
US638319610 Ago 20007 May 2002Scimed Life Systems, Inc.Surgical extractor
US64916985 Oct 200010 Dic 2002Scimed Life Systems, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US6500182 *26 Mar 199931 Dic 2002Cook Urological, IncorporatedMinimally-invasive medical retrieval device
US65209683 Ago 200118 Feb 2003Scimed Life SystemsReleasable basket
US65277818 Ene 20014 Mar 2003Scimed Life SystemsAtraumatic medical retrieval device
US662691522 Abr 199930 Sep 2003Scimed Life Systems, Inc.Medical retrieval device with loop basket
US6632197 *16 Abr 199914 Oct 2003Thomas R. LyonClear view cannula
US6692504 *17 Dic 200117 Feb 2004Micrus CorporationClot retrieval device
US678019325 Mar 200224 Ago 2004Boston Scientific CorporationSurgical extractor
US680008022 Dic 19995 Oct 2004Scimed Life Systems, Inc.Medical retrieval device
US687221124 Ene 200229 Mar 2005Scimed Life Systems, Inc.Hybrid stone retrieval device
US689345014 Sep 200117 May 2005Cook Urological IncorporatedMinimally-invasive medical retrieval device
US69360527 Mar 200230 Ago 2005Boston Scientific Scimed, Inc.System for implanting an implant and method thereof
US69426733 Feb 200313 Sep 2005Boston Scientific Scimed, Inc.Releasable basket
US69915977 Mar 200231 Ene 2006Boston Scientific Scimed, Inc.System for implanting an implant and method thereof
US7008434 *8 Ene 20047 Mar 2006Micrus CorporationClot retrieval device
US701838522 Nov 200228 Mar 2006Scimed Life Systems, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US70257727 Mar 200211 Abr 2006Scimed Life Systems, Inc.System for implanting an implant and method thereof
US716915424 May 200030 Ene 2007Scimedlife Systems, Inc.Releasable basket and method of making thereof
US72350437 Mar 200226 Jun 2007Boston Scientific Scimed Inc.System for implanting an implant and method thereof
US736113831 Jul 200322 Abr 2008Scimed Life Systems, Inc.Bioabsorbable casing for surgical sling assembly
US740213314 Ago 200322 Jul 2008Boston Scientific Scimed, Inc.Spacer for sling delivery system
US75599347 Abr 200314 Jul 2009Scimed Life Systems, Inc.Beaded basket retrieval device
US759182523 Jul 200422 Sep 2009Boston Scientific CorporationSurgical extractor
US7625361 *26 Abr 20041 Dic 2009Sumitomo Bakelite Company LimitedCatheter kit for burrow
US76781189 Sep 200516 Mar 2010Boston Scientific Scimed, Inc.Releasable basket
US769111127 Sep 20046 Abr 2010Boston Scientiffic Scimed, Inc.Atraumatic medical retrieval device
US771792426 Jul 200418 May 2010Boston Scientific Scimed, Inc.Medical retrieval device
US782432629 Feb 20082 Nov 2010Boston Scientific Scimed, Inc.Bioabsorbable casing for surgical sling assembly
US787503811 Ene 200725 Ene 2011Scimed Life Systems, Inc.Releasable basket and method of making thereof
US791886024 Abr 20095 Abr 2011Boston Scientific CorporationSurgical extractor
US8007508 *1 Jul 200530 Ago 2011Cox John ASystem for tissue dissection and retraction
US803398314 Ago 200311 Oct 2011Boston Scientific Scimed, Inc.Medical implant
US810533616 Feb 201031 Ene 2012Boston Scientific Scimed, Inc.Atraumatic medical retrieval device
US81628167 Mar 200224 Abr 2012Boston Scientific Scimed, Inc.System for implanting an implant and method thereof
US8262691 *26 Dic 200711 Sep 2012Rex Medical, L.P.Distal protective device
US841454323 Ago 20109 Abr 2013Rex Medical, L.P.Rotational thrombectomy wire with blocking device
US860310431 Ene 200610 Dic 2013Boston Scientific Scimed, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US86170487 Mar 200231 Dic 2013Boston Scientific Scimed, Inc.System for implanting an implant and method thereof
US86171787 Mar 201131 Dic 2013Boston Scientific Scimed, Inc.Surgical extractor
US863245315 Jul 200821 Ene 2014Boston Scientific Scimed, Inc.Spacer for sling delivery system
US867914810 Sep 201225 Mar 2014Rex Medical, L.P.Distal protection device
US8732933 *15 Dic 201027 May 2014Boston Scientific Scimed, Inc.Releasable basket and method of making thereof
US88280227 Ene 20059 Sep 2014Boston Scientific Scimed, Inc.Hybrid stone retrieval device
US90172949 Mar 201328 Abr 2015Rex Medical, L.P.Rotational thrombectomy wire with blocking device
US9370648 *27 Feb 201421 Jun 2016Mgs Mfg. Group, Inc.Injection molded adjustable shape abscess irrigation device
US9498596 *29 Mar 201222 Nov 2016Said I. HakkyCatheter
US20020068954 *14 Sep 20016 Jun 2002Cook Urological Inc.Minimally-invasive medical retrieval device
US20020151909 *7 Mar 200217 Oct 2002Gellman Barry N.System for implanting an implant and method thereof
US20020156487 *7 Mar 200224 Oct 2002Gellman Barry N.System for implanting an implant and method thereof
US20030078593 *22 Nov 200224 Abr 2003Scimed Life Systems, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US20030120281 *7 Feb 200326 Jun 2003Boston Scientific CorporationAtraumatic medical retrieval device
US20030135233 *3 Feb 200317 Jul 2003Scimed Life Systems, Inc.Releasable basket
US20040199200 *7 Abr 20037 Oct 2004Scimed Life Systems, Inc.Beaded basket retrieval device
US20050055033 *23 Jul 200410 Mar 2005Boston Scientific Corporation.Surgical extractor
US20050055034 *26 Jul 200410 Mar 2005Scimed Life Systems, Inc.Medical retrieval device
US20050125004 *27 Sep 20049 Jun 2005Scimed Life Systems, Inc.Atraumatic medical retrieval device
US20050216031 *7 Ene 200529 Sep 2005Boston Scientific Scimed, Inc.Hybrid stone retrieval device
US20060009786 *9 Sep 200512 Ene 2006Boston Scientific Scimed, Inc.Releasable basket
US20060161174 *21 Dic 200520 Jul 2006Boston Scientific Scimed, Inc.Atraumatic medical retrieval device
US20060190007 *31 Ene 200624 Ago 2006Boston Scientific Scimed, Inc.Medical retrieval basket with legs shaped to enhance capture and reduce trauma
US20070005093 *1 Jul 20054 Ene 2007Cox John ASystem for tissue dissection and retraction
US20070016134 *26 Abr 200418 Ene 2007Yutaka SuzukiCatheter kit for burrow
US20070135820 *11 Ene 200714 Jun 2007Scimed Life Systems, Inc.Releasable basket and method of making thereof
US20070219530 *23 May 200720 Sep 2007Cook IncorporatedSelf centering delivery catheter
US20080114392 *26 Dic 200715 May 2008Rex MedicalDistal protective device
US20100268246 *16 Feb 201021 Oct 2010Boston Scientific Scimed, Inc.Atraumatic medical retrieval device
US20110028794 *30 Jul 20093 Feb 2011Ethicon Endo-Surgery, Inc.Methods and devices for providing access into a body cavity
US20110143903 *15 Dic 201016 Jun 2011Boston Scientific Scimed, Inc.Releasable basket and method of making thereof
US20110213381 *7 Mar 20111 Sep 2011Boston Scientific CorporationSurgical Extractor
US20140180259 *27 Feb 201426 Jun 2014MSG MFG. Group Inc.Injection Molded Adjustable Shape Abscess Irrigation Device
DE19722429A1 *28 May 19973 Dic 1998Optimed Medizinische Instr GmbCapturing or reducing gall stones and kidney stones in hollow organs
EP0117519A1 *22 Feb 19845 Sep 1984Johannes Dipl.-Ing. TheermannCatheter
EP0160870A2 *22 Abr 198513 Nov 1985Boston Scientific CorporationMedical retriever device
EP0160870A3 *22 Abr 198516 Abr 1986Van-Tec IncorporatedMedical retriever device
WO1999016365A1 *30 Sep 19988 Abr 1999Boston Scientific LimitedMedical retrieval basket with legs shaped to enhance capture solid matter and reduce trauma
WO1999047054A1 *19 Mar 199923 Sep 1999Cook Urological Inc.Minimally invasive medical retrieval device
WO1999053850A2 *22 Abr 199928 Oct 1999Scimed Life Systems, Inc.Atraumatic medical retrieval device
WO1999053850A3 *22 Abr 199920 Ene 2000Scimed Life Systems IncAtraumatic medical retrieval device
WO2016068758A1 *30 Oct 20156 May 2016Общество С Ограниченной Ответственностью "Смет"Device for manipulating foreign bodies in hollow organs (variants)
Clasificaciones
Clasificación de EE.UU.606/127, D24/143, 604/105
Clasificación internacionalA61B17/22
Clasificación cooperativaA61B2017/2212, A61B17/22, A61B17/221
Clasificación europeaA61B17/22, A61B17/221