Patents Examined by Michael H. Thaler
  • Patent number: 6660032
    Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: December 9, 2003
    Assignee: Vascular Architects, Inc.
    Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
  • Patent number: 6660012
    Abstract: A circumcision instrument has two cylindrical hollow members telescopically engageable with each other. The first cylindrical member carries a sharp blade on its proximate end; the second cylindrical member has a stapling mechanism mounted inside for stapling the circumcised foreskin and reducing bleeding. The foreskin is pushed back from the head of the penis to lie against the outer wall of the first cylindrical member; then the second cylindrical member is moved to extend in part over the cut area where tissue-absorbable staples are applied.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: December 9, 2003
    Inventor: Hossein Lahiji
  • Patent number: 6660017
    Abstract: A balanced ultrasonic surgical instrument is described wherein the balanced ultrasonic surgical instrument includes an ultrasonic transmission rod and an ultrasonically actuated blade attached to the distal end of the ultrasonic transmission rod. According to the present invention, the ultrasonically actuated blade includes a treatment portion and a balance portion. The treatment portion has a functional feature such as, for example, a triangular blade which makes the treatment portion asymmetric. The balance portion includes a singular asymmetric balance feature designed and positioned to balance out any undesirable torque generated by the treatment portion. The balance portion further extends generally from a node point on the ultrasonic transmission rod to the proximal end of the treatment portion.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: December 9, 2003
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventor: Jean M. Beaupre
  • Patent number: 6656176
    Abstract: An endoscopic vessel harvesting device and a method of endoscopic harvesting of vessels from a patients body. The method comprises locating the vessel, and inserting the vessel harvesting device through an incision. Dissecting the vessel from the surrounding tissue, and capturing side branch vessels in a vessel capturing device. Ligating and transecting the side branch vessels using electrodes and a knife located in the vessel capturing device. Finally, ligating and transecting the vessel, and removing the vessel from the patients body. The vessel harvesting device comprises a head piece, a shaft having a lumen for receiving an endoscope, and a vessel capturing device located on the head piece for capturing the side branch vessels in the receiver.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 2, 2003
    Assignee: Ethicon, Inc.
    Inventors: Christopher J. Hess, Michael F. Clem, Gary W. Knight, Rudolph H. Nobis, Dale R. Schulze
  • Patent number: 6652570
    Abstract: A composite stent/graft tubular prosthesis includes an inner PTFE tubular structure, an outer PTFE tubular structure assembled about the inner PTFE tubular structure, and a circumferentially distensible stent interposed between the inner and outer PTFE tubular structures. The outer tubular body is a non-continuous body formed of polytetrafluoroethylene components, providing axial and circumferential compliance to said prosthesis. The outer tubular body completely overlies the distensible stent.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: November 25, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Scott Smith, Christopher Brian Brodeur
  • Patent number: 6648903
    Abstract: A medical tensioning cable system provides dynamic tensioning to maintain high tension in a fixation system despite tissue shifting, cable slippage, or other inadvertent loss of tension. An exemplary embodiment of an in-line dynamic tensioning system includes a dynamically tensioning cable retainer, suitably comprising a suture anchor or bone screw, which provides a bias to maintain tension in the cable after installation. The retainer includes a retaining mechanism for retaining the cable or suture and a biasing mechanism connected to the retaining mechanism. In the event of cable slippage or slackening, the biasing mechanism tends to take up the slack and maintain tension. As a result, cable tension is maintained regardless of inadvertent cable slackening after installation.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: November 18, 2003
    Inventor: Raymond H. Pierson, III
  • Patent number: 6645237
    Abstract: A coiled stent (196) has a coiled stent body with a main body portion (106) and end portions (108). The end portions may be substantially less stiff than the body portion to help prevent tissue trauma. A graft material (124) may be used to cover at least the main body portion to create a coiled stent graft (122) in which adjacent turns (128) have gaps defined therebetween to create a generally helical gap (130). The coiled stent may have side elements (10) separated by connector elements (112) and be placeable in a contracted, reduced diameter state and in a relaxed, expanded diameter state. The connector elements are preferably generally parallel to the stent axis when placed in the contracted, reduced-diameter state, typically tightly wrapped around a placement catheter (136).
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: November 11, 2003
    Assignee: Vascular Architects, Inc.
    Inventors: Katherine J. Klumb, Thomas J. Fogarty, Kirti P. Kamdar, Bradley B. Hill
  • Patent number: 6635071
    Abstract: A surgical grasping and holding forceps has a shaft, at least two mouth parts and a grip. A mechanism for opening and closing the mouth parts is in working engagement with the grip. The mechanism is acted upon by spring force in such a way that the mouth parts are pushed in a closing direction. A device, configured as a rigid linkage and engaging into said mechanism with which device said mouth parts are positively movable into a defined final closed position in which they exert a predefined holding force on an object received between them is provided. Said device has a stop which prevents overshooting of said final closed position, even when greater force is applied.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: October 21, 2003
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Hartmut Boche, Hans Scherieble
  • Patent number: 6635084
    Abstract: A stent for implanting in the body to hold open a blood vessel includes cells with facing loops and the curved flexible links disposed and adapted to cooperate so that, when unexpended, the stent can flex as it is moved through curved blood vessels to a site where it is to be expanded and so that, when the stent is expanded in a curved vessel, at that site, as compared to each other, cells on the outside of the curve are open in length, but narrow in width as compared to cells on the inside of the curve which are short in length but increased in width to result in a more constant stent cell area between the inside and the outside of the curve than would otherwise occur causing the stent, when coated with a medicine, to apply a more even dose to the inside wall of the lumen, avoiding the possibility that a toxic dose is supplied at one area while a less than effective dose is applied to another area.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: October 21, 2003
    Assignee: Medinol, Ltd.
    Inventors: Henry Marshall Israel, Gregory Pinchasik
  • Patent number: 6620181
    Abstract: A fluid operated retractor for use in surgery. The retractor has a portion that is expandable upon the introduction of fluid under pressure. The expandable portion, is made of a material strong enough, and is inflated to enough pressure, to spread adjoining tissues within the body. The retractor is especially useful in fiber optic surgery because it can be inserted percutaneously through a small opening then expanded to a much larger dimension when in the desired location, to retract tissue from within. The retractor may be used to spread a joint such as a knee joint or a shoulder joint, or may be used to separate tissue planes generally, to improve visualization and create a working space for the surgeon.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: September 16, 2003
    Assignee: General Surgical Innovations, Inc.
    Inventor: Peter M. Bonutti
  • Patent number: 6616675
    Abstract: Anastomotic connectors and apparatus for forming and/or maintaining connections between openings formed in anatomical structures, such as blood vessels. The apparatus is initially deployed in a first configuration which is sufficiently compact to be delivered through the lumen of a catheter or cannula. Thereafter, the device is expanded to a second configuration whereby it engages the anatomical structures and forms or maintains the desired connection between openings in the anatomical structures.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: September 9, 2003
    Assignee: Transvascular, Inc.
    Inventors: Philip C. Evard, Joshua Makower, J. C. Flaherty, Timothy R. Machold, Jason B. Whitt, Patrick E. Macaulay, John T. Garibotto, Alex T. Roth
  • Patent number: 6616683
    Abstract: Miniature surgical forceps are formed from a one-piece tubular member by opposed longitudinal channels machined in a distal end thereof so as to establish a radially opposed pair of unitary forceps jaws. Most preferably, the opposed channels are formed in the distal end of the rigid tubular member by means of electron discharge machining (EDM) techniques. The resulting opposed cross-sectionally arcuate jaw sections may be bent and/or further shaped to achieve the desired final jaw configuration. The inner surfaces of the forceps jaws thereby established may have a filler material deposited in such a manner so as to change the overall shape and/or geometric configuration of the jaws and thereby engineer them to a specific surgical purpose.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: September 9, 2003
    Assignee: Duke University
    Inventors: Cynthia A. Toth, Ronald F. Overaker, Brian C. Dodge, Brooks W. McCuen
  • Patent number: 6613060
    Abstract: An elastic band for ligating tissue within a living body comprises an inner tissue engaging surface which, when in an operative position within the body, surrounds and directly contacts the tissue. At least a portion of the inner tissue engaging surface defines a plurality of discontinuities formed by one of projections and depressions. A method of ligating tissue within a living body using such a ligating band comprises the steps of positioning the elastic band, which has been stretched to increase the size of a central opening extending therethrough, adjacent to a portion of tissue to be ligated. The tissue to be ligated is then drawn through the central opening of the elastic band and the elastic band is released so that the size of the central opening decreases to grip the tissue received therein.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: September 2, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Ronald David Adams, Michael Banik, Steve Moreci
  • Patent number: 6613038
    Abstract: Cannulas for surgical and medical use expand along their entire lengths. The cannulas are inserted through tissue when in an unexpanded condition and with a small diameter. The cannulas are then expanded radially outwardly to give a full-size instrument passage. Expansion of the cannulas occurs against the viscoelastic resistance of the surrounding tissue. The expandable cannulas do not require a full depth incision, or at most require only a needle-size entrance opening. In one embodiment of the invention, the cannula has a pointed end portion. In this embodiment of the invention, the cannula includes wires having cores which are enclosed by jackets. The jackets are integrally formed as one piece with a sheath of the cannula. The cannula may be expanded by inserting members or by fluid pressure. The cannula is advantageously utilized to expand a vessel, such as a blood vessel. An expandable chamber may be provided at the distal end of the cannula.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: September 2, 2003
    Assignee: Bonutti 2003 Trust-A
    Inventors: Peter M. Bonutti, James S. Hawkins
  • Patent number: 6610076
    Abstract: A positioning assembly for retaining, positioning and at least partially exposing a cornea of an eye during a surgical procedure. The positioning assembly includes a positioning segment having a retention plate with an aperture to receive and expose the cornea, and a flange member disposed about the aperture and structured to engage the eye. The positioning assembly further includes a suctioning assembly having a vacuum port extending vertically from the positioning segment and angled outwardly away from a guide track integrally disposed on the retention plate to define an arcuate cutting path for a microkeratome cutting head assembly. A pivot assembly including at least a post member is further provided which operably interconnects the cutting head assembly and the post member. A cut origination control is provided at the post member to define an origination point.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: August 26, 2003
    Inventor: Johann F. Hellenkamp
  • Patent number: 6610066
    Abstract: A surgical handpiece adapter for converting rotary motion of a powered surgical handpiece into reciprocating motion to drive a cutting member includes a rear drive shaft for being removably coupled to a rotatable drive shaft of the handpiece, a front drive shaft for being removably coupled to the cutting member and a motion converting mechanism causing reciprocation of the front drive shaft and, therefore, the cutting member coupled thereto, in response to rotation of the rear drive shaft by the drive shaft of the handpiece. A handpiece adapter assembly is formed by an adapter and a cutting member coupled thereto, and a powered surgical handpiece assembly is formed by an adapter, a cutting member coupled to the adapter and a powered surgical handpiece coupled to the adapter.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: August 26, 2003
    Assignee: Medtronic Xomed, Inc.
    Inventors: Fred B. Dinger, John T. Cleveland
  • Patent number: 6607540
    Abstract: The clip applier of the current invention solves the problems of prior art tools by incorporating a pre-clamp mechanism, the function of which is to pre-clamp the vessel to be ligated to a dimension such that the center leg of the spring of the ligation clip need be lifted only slightly. In this manner the spring clip can be slid over the smaller pre-clamped dimension. This insures that the clip spring material will remain within its elastic limit while allowing the tool to maintain a low profile for use in endoscopic surgery, even on large diameter vessels.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: August 19, 2003
    Assignee: Surgicon, Inc.
    Inventor: John I. Shipp
  • Patent number: 6605037
    Abstract: An inflatable retraction apparatus is provided for retracing an organ inside a body to gain access to an adjacent tissue. The apparatus includes an able chamber formed from a single thin envelope, and capable of being collapsed for insertion through an incision and being expanded to a predetermined shape for retracing the organ. An inflation mechanism is adapted to selectively inflate the chamber to the predetermined shape. The inflation mechanism includes at least one inflation tube attached to the inflatable chamber in fluid communication theretween, and an inflatable maintaining lattice operatively enveloping the inflatable chamber and in operative association with the inflation mechanism.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: August 12, 2003
    Assignee: Sherwood Services AG
    Inventors: Frederic H. Moll, Charles Gresl, Jr., Albert K. Chin, Philip K. Hopper
  • Patent number: 6605104
    Abstract: A grasping forceps for an endoscope according to the present invention comprises a flexible insertion section, an operating wire passing through said insertion section and adapted to be advanced and retreated in accordance with an operation of an operating section connected to a hand side end of the operating wire, and an elastic grasping section arranged in the leading end portion of said operating wire and composed of at least four elastic grasping members different in length having a habit of so flexing that leading end grasping portions formed at the leading ends of said elastic grasping members spread outwards from a center axis of said insertion section, wherein the leading end grasping portions formed at the leading ends of the plurality of elastic grasping members different in length are spread in a spiral arrangement at the time of spreading of the elastic grasping section.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: August 12, 2003
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yukio Sato, Tsutomu Okada, Yayoi Ishibashi
  • Patent number: 6602267
    Abstract: A surgical knife device includes a tubular shaft, a blade guide at the distal end of the shaft, an actuation wire extending through the shaft, a blade coupled to the distal end of the wire, and a handle which moves the wire relative to the shaft to effect extension and retraction of the blade from the guide. The blade height is substantially the same as the outer diameter of the distal end of the shaft and the blade guide to provide a large cutting surface. Movement of the blade is effected with a knob rotatably coupled to the handle and which provides fine longitudinal movement of the blade. The device is also preferably steerable such that it may be controllably articulated about a flexible distal portion of the shaft.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: August 5, 2003
    Assignee: Medcanica, Inc.
    Inventor: Javier E. Castan{tilde over (e)}da