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 publicaciónUS3835859 A
Tipo de publicaciónConcesión
Fecha de publicación17 Sep 1974
Fecha de presentación22 Feb 1973
Fecha de prioridad22 Feb 1973
Número de publicaciónUS 3835859 A, US 3835859A, US-A-3835859, US3835859 A, US3835859A
InventoresGioia L Di, R Roberts
Cesionario originalR Roberts, Gioia L Di
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Surgical instrument
US 3835859 A
Resumen
A surgical instrument including a flexible track operatively connected to a handle and adapted to be extended therefrom into a knee cavity to conform to the interior configuration of the knee cavity, and a blade slidably mounted on the track and constrained to move thereon for cutting damaged or broken cartilage from the knee cavity.
Imágenes(2)
Previous page
Next page
Descripción  (El texto procesado por OCR puede contener errores)

States atent [191 Roberts et a1.

[ Sept. 17, 1974 SURGICAL INSTRUMENT Inventors: Robert R. Roberts, Rt. No. 1, Frederick, Md. 21701; Leo J. DiGioia, 18916 Diary Rd., Gaithersburg, Md. 20760 Filed: Feb. 22, 1973 Appl. No.: 334,726

US. Cl. 128/305, 30/289 Int. Cl A6lb 17/32 Field of Search 128/305, 309, 2 B, 307,

References Cited UNITED STATES PATENTS Storz 128/309 3,328,876 7/1967 Hoppe 128/305 X 3,484,940 12/1969 Zell, Jr 128/305 X 3,665,924 5/1972 Noiles ct al 128/305 Primary Examiner-Lucie H. Laudenslager Attorney, Agent, or Firm-Brady, OBoyle & Gates [57] ABSTRACT A surgical instrument including a flexible track operatively connected to a handle and adapted to be extended therefrom into a knee cavity to conform to the interior configuration of the knee cavity, and a blade slidably mounted on the track and constrained to move thereon for cutting damaged or broken cartilage from the knee cavity.

9 Claims, 6 Drawing Figures PAIENIEUSEPIYIQH mamas SHEET 1 BF 2 SURGICAL INSTRUMENT BACKGROUND OF THE INVENTION Various surgical instruments have been provided for cutting damaged cartilage from the human anatomy. These instruments usually consist of knife members designed for use on the particular portion of the anatomy from which the damaged cartilage is to be removed. While most of these instruments have been satisfactory for their intended purpose, a suitable instrument has not been provided for cutting damaged cartilage from a knee cavity.

After considerable research and experimentation, the surgical instrument of the present invention has been devised for cutting damaged cartilage from a knee cavity and comprises, essentially, a handle portion having an extensible track and cutting blade operatively connected thereto, the track is flexible to conform to the interior configuration of the knee cavity and the cutting blade is constrained to travel on the track whereby the damaged cartilage is cut from the knee cavity.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of the surgical instrument of the present invention;

FIG. 2 is an elevational end view of the instrument;

FIG. 3 is a view taken along line 33 of FIG. 1;

FIG. 4 is a view taken along line 4-4 of FIG. 1;

FIG. 5 is a top plan view of the instrument; and

FIG. 6 is a side elevational view of the instrument.

Referring to the drawings and more particularly to FIGS. 1 and 4, the surgical instrument of the present invention comprises, a housing 1 having longitudinally extending channeled recesses 2 and 3 formed in the side walls thereof. Each recess forms a track in which a respective slide member 4 and 5 is mounted for reciprocatory movement therein, to be described more fully hereinafter.

A longitudinally extending rod 6 is secured to the front wall la of the housing and provides an extension thereof, the free end of the rod supporting a pair of laterally spaced post members 7 and 8 interconnected by a transversely extending arm 9.

A pair of parallel, vertically spaced flexible wires 10 and 11 extend through and are slidably mounted in post 8, one end of each wire being secured within post 7 as at 12, the opposite end of the wires being secured to slide member 5.

The construction and arrangement of the flexible wires form a track loop upon which a cutting blade 13 is slidably mounted, the blade being supported on the wires 10 and 11 by a blade holder 14 through whichthe wires extend. One end of a flexible band 15 is connected to the blade holder 14 and the opposite end of the band is connected to the slide member 4.

To complete the description of the surgical instrument, each slide member 4 and 5 is provided with a respective handle 16 and 17 adapted to be manually moved in the direction of the arrows as shown in FIG. I, to thereby cause the reciprocatory movement of the respective slide member. Additional handle members 18 of the conventional finger-hole type are provided on the end portion of the housing to facilitate the manipulation of the instrument by the surgeon.

In the use of the surgical instrument for removing cartilage from a knee cavity, the surgeon extends the flexible wires 10 and 11 into the knee cavity by pushing handle 17 and its associated slide 5 forwardly. The flexibility of the wires allows them to conform to the interior configuration of the cavity. While the wires 10 and 11 are maintained in the extended position, the handle 16 and associated slide 4 are pushed forwardly causing the blade holder 14 and blade 13 to slide on the wires, whereby damaged or broken cartilage is cut from the knee cavity. After the cartilage has been cut, the blade 13 isfirst retracted by moving the handle 16 in the opposite direction, and then the handle 17 is moved rearwardly to retract the wires 10 and 11 from the knee cavity.

It is to be understood that the form of the invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to, without departing from the spirit of the invention or scope of the subjoined claims We claim:

1. A surgical instrument for cutting cartilage from a cavity, comprising, a housing, wire means mounted on said housing, means operatively connected between said housing and said wire means for extending said wire means from said housing into said cavity, said wire means being adapted to conform to the interior of the cavity into which it is inserted, knife means slidably mounted on said wire means, and means operatively connected between said housing and said knife means for sliding said knife means on said wire means.

2. A surgical instrument according to claim 1 wherein the wire means comprises a pair of parallel, vertically spaced, flexible wires.

3. A surgical instrument according to claim 1 wherein the means for extending the track means comprises, a member slidably mounted on said housing, one end of said wire means being connected to said slide member.

4. A surgical instrument according to claim 1 wherein the means for sliding the knife means on the wire means comprises, a slide member slidably mounted on said housing, and a band member having one end connected to said slide member and the opposite end connected to said knife means.

5. A surgical instrument according to claim 1 wherein the knife means comprises a holder slidably mounted on said wire means, and a cutting blade mounted on said holder.

6. A surgical instrument according to claim 1 wherein extension means are connected to one end of said housing, said wire means having one end connected to said extension means, said wire means being bent back upon itself, the reversely bent portion thereof extending through said extension means and into said housing to thereby form a looped track.

7. A surgical instrument according to claim 6 wherein said extension means comprises a rod extending longitudinally of the housing and connected to one end wall thereof, and a pair of laterally spaced post members connected to the free end of said rod, said one end of said wire means being connected to one of said post members, the reversely bent portion of said wire means slidably mounted through the other post member.

wherein a longitudinally extending channeled recess is formed in the housing, said slide member being mounted in said recess, and a handle connected to said slide member to facilitate the manual sliding of said slide member in said recess.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US2843128 *18 Mar 195715 Jul 1958Storz Instr CoAdenotome
US3328876 *27 Oct 19644 Jul 1967Hoppe Clemens BSurgical suture extractor
US3484940 *13 Nov 196723 Dic 1969North American RockwellCutting device
US3665924 *13 Oct 197030 May 1972United States Surgical CorpSuturing and dividing organic tubular structures
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US4239045 *4 Abr 197916 Dic 1980Schlein Allen PSurgical knife
US4289132 *25 Jun 197915 Sep 1981Rieman Robert DSurgical instrument and method of using the same
US4491132 *6 Ago 19821 Ene 1985Zimmer, Inc.Sheath and retractable surgical tool combination
US4674500 *27 Sep 198523 Jun 1987Minnesota Mining And Manufacturing CompanySheathed knife instrument
US4700702 *9 Dic 198520 Oct 1987Tatiana NilssonInstrument for cutting tissues in surgery
US4733662 *20 Ene 198729 Mar 1988Minnesota Mining And Manufacturing CompanyTissue gripping and cutting assembly for surgical instrument
US4869716 *24 Oct 198826 Sep 1989Smirmaul Heinz JSurgical instrument and method for cutting the lens of an eye
US4950272 *19 Jun 198921 Ago 1990Smirmaul Heinz JSurgical instrument and method for removing the lens of an eye
US5002543 *9 Abr 199026 Mar 1991Bradshaw Anthony JSteerable intramedullary fracture reduction device
US5122147 *5 Abr 199116 Jun 1992Sewell Jr Frank KPolyp marking device and method
US5141517 *16 Ene 199025 Ago 1992Zimmer Inc.Retractable instrument
US5443474 *7 Mar 199422 Ago 1995Implemed, Inc.Meniscectomy knife
US5613973 *10 Mar 199525 Mar 1997Wilson Greatbatch Ltd.Laraposcopic surgical grasper having an attachable strap
US5772676 *7 Feb 199530 Jun 1998Karl Storz Gmbh & Co.Endoscopic cutting device
US6120513 *9 Ene 199819 Sep 2000Bailey; Robert W.Laparoscopic surgery instrumentation and method of its use
US6517550 *2 Feb 200011 Feb 2003Board Of Regents, The University Of Texas SystemForeign body retrieval device
US74978609 Jul 20043 Mar 2009Stryker CorporationSurgical sagittal saw including a handpiece and a removable blade assembly, the blade assembly including a guide bar, a blade head capable of oscillatory movement and a drive rod for actuating the blade head
US755330715 Oct 200530 Jun 2009Baxano, Inc.Devices and methods for tissue modification
US755534315 Oct 200530 Jun 2009Baxano, Inc.Devices and methods for selective surgical removal of tissue
US757881913 Jul 200625 Ago 2009Baxano, Inc.Spinal access and neural localization
US7587992 *4 Abr 200315 Sep 2009Munchkin, Inc.Shedding blade with adjustable blade length
US773896815 Oct 200515 Jun 2010Baxano, Inc.Devices and methods for selective surgical removal of tissue
US773896921 Ene 200915 Jun 2010Baxano, Inc.Devices and methods for selective surgical removal of tissue
US774063115 Oct 200522 Jun 2010Baxano, Inc.Devices and methods for tissue modification
US785781329 Ago 200628 Dic 2010Baxano, Inc.Tissue access guidewire system and method
US788753813 Mar 200615 Feb 2011Baxano, Inc.Methods and apparatus for tissue modification
US791884915 Oct 20055 Abr 2011Baxano, Inc.Devices and methods for tissue access
US793883017 Abr 200610 May 2011Baxano, Inc.Powered tissue modification devices and methods
US795957731 Mar 200814 Jun 2011Baxano, Inc.Method, system, and apparatus for neural localization
US796391515 Oct 200521 Jun 2011Baxano, Inc.Devices and methods for tissue access
US804329215 Dic 200825 Oct 2011Stryker CorporationSurgical sagittal saw blade including a guide bar, a blade head and drive rods for pivoting the blade head
US80480804 May 20061 Nov 2011Baxano, Inc.Flexible tissue rasp
US806229816 Mar 200722 Nov 2011Baxano, Inc.Flexible tissue removal devices and methods
US806230016 Mar 200722 Nov 2011Baxano, Inc.Tissue removal with at least partially flexible devices
US809245613 Ene 200910 Ene 2012Baxano, Inc.Multiple pathways for spinal nerve root decompression from a single access point
US816296123 Jul 200724 Abr 2012Zimmer Orthobiologies, Inc.Medical devices and methods for cutting and suturing biological tissue
US819243515 Oct 20055 Jun 2012Baxano, Inc.Devices and methods for tissue modification
US8192436 *26 Nov 20085 Jun 2012Baxano, Inc.Tissue modification devices
US822139722 Abr 200917 Jul 2012Baxano, Inc.Devices and methods for tissue modification
US825735627 May 20084 Sep 2012Baxano, Inc.Guidewire exchange systems to treat spinal stenosis
US826266128 Mar 200711 Sep 2012Premia Spine Ltd.Spinal reamer
US830351620 Abr 20116 Nov 2012Baxano, Inc.Method, system and apparatus for neural localization
US83489666 Ago 20108 Ene 2013Thayer Intellectual Property, Inc.Systems and methods for treatment of compressed nerves
US83667126 Dic 20115 Feb 2013Baxano, Inc.Multiple pathways for spinal nerve root decompression from a single access point
US839410225 Jun 201012 Mar 2013Baxano, Inc.Surgical tools for treatment of spinal stenosis
US839864127 Dic 201119 Mar 2013Baxano, Inc.Tissue modification devices and methods
US84039326 May 201126 Mar 2013Stryker CorporationIntegrated cutting guide and sagittal saw blade assembly
US84092064 May 20102 Abr 2013Baxano, Inc.Tissue modification devices and methods
US841965316 Jul 200916 Abr 2013Baxano, Inc.Spinal access and neural localization
US843088117 Abr 200630 Abr 2013Baxano, Inc.Mechanical tissue modification devices and methods
US85510971 Nov 20108 Oct 2013Baxano Surgical, Inc.Tissue access guidewire system and method
US856841617 Ago 201229 Oct 2013Baxano Surgical, Inc.Access and tissue modification systems and methods
US857990226 Mar 201212 Nov 2013Baxano Signal, Inc.Devices and methods for tissue modification
US85857046 Oct 201119 Nov 2013Baxano Surgical, Inc.Flexible tissue removal devices and methods
US860875921 Mar 201217 Dic 2013Zimmer Orthobiologics, Inc.Medical devices for suturing biological tissue
US861374520 May 201124 Dic 2013Baxano Surgical, Inc.Methods, systems and devices for carpal tunnel release
US861716320 May 201131 Dic 2013Baxano Surgical, Inc.Methods, systems and devices for carpal tunnel release
US864734631 May 201211 Feb 2014Baxano Surgical, Inc.Devices and methods for tissue modification
US865213823 Sep 201118 Feb 2014Baxano Surgical, Inc.Flexible tissue rasp
US865215718 May 201218 Feb 2014Thayer Intellectual Property, Inc.Systems and methods for treatment of compressed nerves
US866322814 Sep 20114 Mar 2014Baxano Surgical, Inc.Tissue modification devices
US870271026 Feb 201322 Abr 2014Stryker CorporationSurgical sagittal saw capable of actuating a blade assembly that includes a static bar and a drive rod
US872166818 Dic 201213 May 2014Thayer Intellectual Property, Inc.Systems and methods for treatment of compressed nerves
US875336427 Jun 201117 Jun 2014Thayer Intellectual Property, Inc.Systems and methods for treatment of compressed nerves
US880162629 Dic 201112 Ago 2014Baxano Surgical, Inc.Flexible neural localization devices and methods
EP0217638A2 *25 Sep 19868 Abr 1987Minnesota Mining And Manufacturing CompanySheathed knife instrument
EP1799129A2 *15 Oct 200527 Jun 2007Baxano, Inc.Devices and methods for tissue removal
WO1991015172A1 *28 Jun 199017 Oct 1991Georgia Tech Res InstSteerable intramedullary fracture reduction device
WO1995020918A1 *7 Feb 199510 Ago 1995Alfred CuschieriEndoscopic cutting device
WO2007113808A1 *28 Mar 200711 Oct 2007Impliant LtdSpinal reamer with cutter elements on track
WO2009014996A2 *18 Jul 200829 Ene 2009Zimmer Orthobiologics IncMedical devices and methods for cutting and suturing biological tissue
Clasificaciones
Clasificación de EE.UU.606/79, 30/289, 606/113
Clasificación internacionalA61B17/32
Clasificación cooperativaA61B17/32056, A61B2017/143, A61B2017/145
Clasificación europeaA61B17/3205S