Unitary Wire Construction Patents (Class 600/209)
  • Patent number: 10143590
    Abstract: Method and apparatus for performing a laser-assisted posterior capsulotomy and for performing laser eye surgery on an eye having a penetrated cornea are provided. A method for performing a posterior capsulotomy includes injecting fluid between the lens posterior capsule and the anterior hyaloids membrane to separate the lens posterior capsule and the anterior hyaloids membrane. With the lens posterior capsule separated from the anterior hyaloids membrane, a posterior capsulotomy is performed on the lens posterior capsule by using a laser to incise the lens posterior capsule.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 4, 2018
    Assignee: Optimedica Corporation
    Inventors: H. Burkhard Dick, David Scott
  • Patent number: 10098624
    Abstract: A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion. The frame is reconfigurable between (i) a first collapsed state for being inserted through an incision in a cornea and (ii) a second operative state for being operatively connected to an iris. The frame first portion is configured to be generally residing within a plane in the second operative state. The second frame portion is configured to be operatively connected to an iris in the second operative state exerts a pressure upon the iris at at least a first location that is spaced from the plane to maintain the pupil in an enlarged state.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 16, 2018
    Assignee: Nallakrishnan Family Trust
    Inventor: Ravi Nallakrishnan
  • Patent number: 9999543
    Abstract: An implant may be used for implantation into tissue of a body. The implant includes an elongated conduit and a loop. The elongated conduit has an interior passageway for conducting fluid. The loop has an interior circumference with a fluid conducting channel formed therein. The channel is interconnected with the interior passageway for delivery of fluid between the channel and the interior passageway.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: June 19, 2018
    Assignee: AQ BioMed, LLC
    Inventor: Michael J. Wilcox
  • Patent number: 9724105
    Abstract: Methods for closing a left atrial appendage rely on introducing a closure tool from a location beneath the rib cage, over an epicardial surface, and to the exterior of the left atrial appendage. The closure device may then be used to close the left atrial appendage, preferably at its base, by any one of a variety of techniques. One specific technique uses graspers and a closing loop. Methods may include advancing a closure tool adjacent to the left atrial appendage using a sub-xiphoid approach and closing the left atrial appendage using the closure tool. Methods may also include advancing a loop adjacent to the left atrial appendage using a sub-xiphoid approach and closing the left atrial appendage using the loop.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 8, 2017
    Assignee: SentreHEART, Inc.
    Inventors: Aaron V. Kaplan, Jordan T. Bajor
  • Patent number: 9675335
    Abstract: A speculum drape for use in ophthalmic procedures. The speculum drape has at least a first sleeve made of surgical drape material that envelops at least a first retaining portion of a speculum or retractor. The sleeve is an elongate hollow structure with first and second open ends through which at least the first retaining portion is insertable. The sleeve is adapted and arranged such that, with the first retaining portion of the speculum or retractor inserted into the sleeve and with the speculum or retractor in an operating position with the respective retaining portions of the speculum or retractor engaged with opposite edges of an eyelid of a patient, the sleeve (i) envelops the inserted first retaining, (ii) is maintained in a disposition between the inserted retaining portion and the eyelid of the patient solely by compressive force and (iii) covers an eyelash of the patient.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: June 13, 2017
    Inventor: Arnold S Prywes
  • Patent number: 9510814
    Abstract: A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion. The frame is reconfigurable between (i) a first collapsed state for being inserted through an incision in a cornea and (ii) a second operative state for being operatively connected to an iris. The frame first portion is configured to be generally residing within a plane in the second operative state. The second frame portion is configured to be operatively connected to an iris in the second operative state exerts a pressure upon the iris at at least a first location that is spaced from the plane to maintain the pupil in an enlarged state.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 6, 2016
    Assignee: Ravi Nallakrishnan Revocable Trust
    Inventor: Ravi Nallakrishnan
  • Patent number: 9232886
    Abstract: Apparatus for use in an operating theatre equipped with a surgical table, comprises a lifting frame (12) attachable to the surgical table and adapted for lifting a body part of a subject undergoing a surgical procedure upon the surgical table, and comprising an upright support post (18) incorporating a jack (54), and a lifting arm (17) pivotally mounted upon the post, whereby the arm can be turned about the upright support post on thrust bearing (57) to either overhang the surgical table, or be pivoted away to permit access to the surgical table. The arm is adapted to support a retractor that comprises a blade portion incorporating a plurality of independent lighting devices positioned in light ports (71, 72, 73) and configured to provide discrete illumination selectively to zones within the surgical field according to (a) a predetermined sequence program, or (b) a sequence determined by a user of the retractor.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: January 12, 2016
    Assignee: CardioPrecision Limited
    Inventors: Ying Sutherland, Fraser William Havern Sutherland
  • Publication number: 20150011836
    Abstract: A medical device for keeping open of a wound during surgery is described. It comprises a surgical retractor, a mechanical retracting system a force element for automatically winding an elongate wire-like element to apply tension to the elongate wire-like element.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 8, 2015
    Inventors: Wouter Foulon, Bastiaan Winnelinckx, Kristoff Corten
  • Patent number: 8845520
    Abstract: A wire-operated selective compliance mobile platform (100), in particular for endoscopic surgery devices, obtains a perfect and precise mobility and thus it allows to handle, in the most effective way, the supported instruments, and comprises a mobile surface (1), a connecting base (2) apt to be connected to a flexible tubular duct (4) for endoscopic uses, a plurality of supporting elements (3), apt to permit the motion of said mobile surface (1) relative to said base (2), characterized in that said supporting elements (3) have at least a selective compliance turning pair (31) and a number of joints (32, 34) so as to provide a predetermined number of degrees of freedom to said platform (100), neither determining any over-constraining, nor forcing the system to be deformed in unselected directions, each supporting element (3) being operated by moving means (51, 52) so as to move said mobile surface (1).
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 30, 2014
    Assignee: Universita' degli Studi di Roma “La Sapienza”
    Inventors: Nicola Plo Belfiore, Massimillano Scaccia, Francosco Ianniello, Massimillano Presta, Luca Perfetti
  • Publication number: 20140275799
    Abstract: A flexible arm for use in a medical procedure includes a plurality of bushings and a plurality of double-ball members engaged with one another to thereby provide flexibility to the flexible arm. The double-ball members include a concave bore having a convex interior surface. The flexible arm further includes a wire extending through the concave bore of the double-ball members. An exterior diameter of the wire closely approximates or matches an interior diameter of the concave bore at its smallest point such that the curved members are operable to guide the wire as the flexible arm is flexed. The wire may be adjusted to thereby manipulate the amount of engagement between the bushings and the double-ball members to thereby manipulate the flexibility of the flexible arm.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: pro med instruments GmbH
    Inventor: Matthias E. Schuele
  • Patent number: 8834361
    Abstract: Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe and reliable, and facilitate manipulation of a medical instrument. The medical access device generally includes an elongated flexible sheath and an expandable frame connected to the distal end of the flexible sheath. The sheath and expandable frame are operable between expanded and collapsed configurations to provide a pathway from a natural orifice to the bodily opening.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: September 16, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: Kiyoshi Hashiba, Vihar C. Surti, Kimberly K. Ingram, Andres F. Aguirre
  • Publication number: 20140221759
    Abstract: A pupil expansion apparatus is placed in the eye during an ophthalmic surgical procedure. In one embodiment, the pupil expansion apparatus is a square frame structure that comprises four straight beams which cross each other at their ends to form a cross beam arrangement. However, the expansion apparatus is not limited to being a square frame structure, and may have a circular, or any multi-sided frame structure. The crossed ends of the straight beams are connected by one or more curved beams, which also form iris supporting portions. The iris supporting portion is shaped in an open, curved form so as to be perpendicular to the plane formed by the frame. It receives the rim of the iris tissue when the pupil expansion apparatus is in its extended position and gently presses the iris to the periphery.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 7, 2014
    Applicant: Impex, Inc.
    Inventors: Richard Jonathan Mackool, Aaron Beller, Joseph Beller
  • Patent number: 8376743
    Abstract: The oral retractor is provided for retracting at least a portion of a patient's mouth. The oral retractor is formed from single, continuous closed-loop strand of stainless steel wire. The oral retractor includes a superior lip-engaging portion for retracting the patient's upper lip away from the upper teeth and gums, and an inferior lip-engaging portion for retracting the patient's lower lip away from the patient's lower teeth and gums. Bilateral arcuate cheek-engaging portions extend posteriorly from the lip-engaging portions for retracting the patient's cheeks away from the teeth and gums. The lip-engaging portions are formed from linear portions defining tented arches that extend anteriorly, and the superior lip-engaging portion may be canted upward, while the inferior lip-engaging portion may be canted downward. The cheek-engaging portions may be substantially parabolic. The retractor may be substantially symmetrical about planes bisecting the retractor vertically and horizontally.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 19, 2013
    Assignee: King Saud University
    Inventor: Mohammed Taher Bukhary
  • Patent number: 8241210
    Abstract: A surgical apparatus includes an elongate cannula having a lumen extending therein between proximal and distal ends, a retractor disposed to slide within the lumen to extend a distal end thereof beyond the distal end of the cannula, an angling device connected to the retractor near the distal end of the retractor and extending within the cannula toward the proximal end thereof for selectively deflecting the distal end of the retractor away from a central axis of the cannula in response to manual manipulation of the angling device from near the proximal end of the cannula, wherein the distal end of the retractor is configured to move, upon extension, an object away from the central axis of the cannula.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: August 14, 2012
    Assignee: Maquet Cardiovascular LLC
    Inventors: John P Lunsford, Charles J Adam, John W Davis, Albert K Chin
  • Patent number: 8202266
    Abstract: Equipment for use in changing a catheter, preferably of the type used for drainage of the urinary tract. The urinary catheter is used as an aid in emptying the urinary bladder in conditions where this cannot be done in the normal manner. The equipment of the present invention includes a sleeve mounting unit which is mounted to an indwelling catheter, and which has a branch member formed in one piece therewith and extending at an acute angle therefrom, for reception of an elongated sleeve having a longitudinal slit. The sleeve is positioned on the branch member and then progressively advanced onto the catheter, causing the slit to become enlarged as the sleeve surrounds the upstream portion of the catheter in a yielding manner. The catheter may then be quickly removed through the sleeve and a new catheter inserted in its place.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: June 19, 2012
    Assignee: Urological AS
    Inventor: Knut Eilert Karlsen
  • Patent number: 7867163
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 11, 2011
    Assignee: Maquet Cardiovascular LLC
    Inventors: Albert K. Chin, John P. Lunsford, Tenny Chang, Jeffrey W. Baxter
  • Patent number: 7850607
    Abstract: A surgical retractor includes a “swivel” having a string extending from one end and a string extending from the midpoint between the two ends. The swivel is delivered by pushing it out of a tube which is inserted through a small incision between the ribs of the patient. After the swivel is deployed, the tube is removed and the string which is attached to the center of the swivel is pulled to lift the pericardium. When the procedure is complete, the swivel is removed from the patient by pulling the string attached to the end of the swivel. According to one embodiment, the swivel is a cylinder with a blunt conical end. According to another embodiment, the swivel has a sharp end which is covered by a spring loaded collar.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: December 14, 2010
    Assignee: Medcanica, LLC
    Inventors: Ralph de la Torre, William E. Cohn, Jose Luis Francese, Matthew A. Palmer
  • Publication number: 20100292541
    Abstract: Medical systems, devices and methods are provided for accessing a bodily opening that, among other things, are safe and reliable, and facilitate manipulation of a medical instrument. The medical access device generally includes an elongated flexible sheath and an expandable frame connected to the distal end of the flexible sheath. The sheath and expandable frame are operable between expanded and collapsed configurations to provide a pathway from a natural orifice to the bodily opening.
    Type: Application
    Filed: November 18, 2009
    Publication date: November 18, 2010
    Inventors: KIYOSHI HASHIBA, Vihar C. Surti, Kimberly K. Ingram, Andres F. Aguirre
  • Patent number: 7476198
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: January 13, 2009
    Assignee: Maquet Cardiovascular, LLC
    Inventors: Albert K. Chin, John P. Lunsford, Tenny Chang, Jeffrey W. Baxter
  • Patent number: 7390298
    Abstract: An expandable surgical retractor for use in minimal incision surgery is disclosed. The retractor consists of a fiber optic central rod surrounded by flexible wires designed to create an open space for visualization and surgical work within an illuminated surgical field. The flexible wires are disposed via selective pressure of the surgeon and are variable in number. The configuration will allow for both forward and back illumination of the surgical field. The expandable surgical retractor allows for surgical visualization in anatomical areas heretofore too complicated for surgical consideration. Other embodiments of the expandable surgical retractor are contemplated wherein a handle with an aperture may replace the central rod. The flexible wires may fit in openings around the aperture. The handle, in this embodiment, may have a light source and may be adapted to be used in select areas of anatomy. Further, the handle may be transparent.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: June 24, 2008
    Assignee: City of Hope
    Inventor: David Z. J. Chu
  • Patent number: 7326178
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis that can be skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, a surgeon locates a vessel and side branch of interest and extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be deflected to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: February 5, 2008
    Assignee: Origin Medsystems, Inc.
    Inventors: John P. Lunsford, Charles J. Adam, John W. Davis, Albert K. Chin
  • Patent number: 7112172
    Abstract: The present disclosure relates to a retraction system for retracting body organs and/or body tissue in a body cavity. The retraction system includes an elongate shaft configured and dimensioned to be inserted into the body cavity, a retractor device operatively associated with the elongate shaft, the retractor device having a first configuration for insertion into the body cavity and at least a second configuration for retraction of the body organ, and at least one anchor member operatively coupled to the retractor device for anchoring the retractor device to a wall of the body cavity.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: September 26, 2006
    Assignee: Tyco Healthcare Group LP
    Inventors: Joseph P. Orban, III, Dean Geraci
  • Patent number: 6656113
    Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. The apparatus may involve a tissue stabilizer, and in particular a tissue stabilizer for use in immobilizing or stabilizing a portion of the beating heart using a compressive force delivered to the heart via the tissue stabilizer. The stabilizer may include a stabilizer base and a shaft. The shaft may be secured within an appropriate instrument mount preferably fixed to a retractor or other stable platform as disclosed herein. The stabilizers of the present invention provide improved access to a surgical site at a target vessel on the surface of the heart and may include features which facilitate optimal presentation of the target vessel.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: December 2, 2003
    Assignee: Cardiothoracic System, Inc.
    Inventors: Harry Leonard Green, II, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
  • Patent number: 6561974
    Abstract: A device for use in a surgical procedure on an eye of a living being, includes a retraction member, destined for insertion into the anterior chamber of the eye. The retraction member has a hook-shaped engagement part for retracting the iris, whereby at least the engagement part of the retraction member is made of a deformable material with shape memory. Thus, the retraction member is insertable into the anterior chamber with the engagement part exhibiting a substantially straight configuration, and subsequently the engagement part is able to recover its original hook-shaped configuration as a consequence of its material characteristics.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: May 13, 2003
    Assignee: Grieshaber & Co. AG Schaffhausen
    Inventors: Hans R. Grieshaber, Werner Maag, Gerhard Althoff
  • Publication number: 20030032861
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 13, 2003
    Inventors: John P. Lunsford, Charles J. Adam, John W. Davis, Albert K. Chin
  • Publication number: 20020103421
    Abstract: A device is disclosed to retract eyelid by employing the friction and adhesion between the device and the outer surface of the eyelid of an eye without engaging the inside of the eyelid, thus without giving rise to infection, contamination, or injury to the eye. The device comprises a pair of arms joined at a joint. The arms are in a wishbone form with a size and configuration that accommodate the anatomy of the eye. The arms can be embodied in several preferred ways so that the size and configuration of the wishbone can be changed dynamically, adjusted resiliently, or fixed manually. The device is efficient enough to assist an eye care clinician to gain greater access to the exposed surface of an eyeball during an eye care procedure and is simple enough to aid contact lens patients in the process of inserting or removing contact lenses.
    Type: Application
    Filed: January 29, 2001
    Publication date: August 1, 2002
    Inventors: Charles R. Putrino, Willet F. Whitmore, Stephen E. Brauner
  • Publication number: 20020087051
    Abstract: A holder for holding parts of a body, structure or assembly spaced apart during operations carried out on the body, structure or assembly, the retractor comprising a body made of wire and having a resilient hinge portion at a vertex of the body and at least two arms outwardly extending from the hinge portion, each arm having a distal portion including anchoring tips.
    Type: Application
    Filed: November 9, 2001
    Publication date: July 4, 2002
    Inventor: Ricardo Levisman
  • Patent number: 6348037
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: February 19, 2002
    Assignee: Origin Medsystems, Inc.
    Inventors: Albert K. Chin, Edwin J. Heavka, John P. Lunsford, Jeffrey W. Baxter
  • Patent number: 6290644
    Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. The apparatus may involve a tissue stabilizer, and in particular a tissue stabilizer for use in immobilizing or stabilizing a portion of the beating heart using a compressive force delivered to the heart via the tissue stabilizer. The stabilizer may include a stabilizer base and a shaft. The shaft may be secured within an appropriate instrument mount preferably fixed to a retractor or other stable platform as disclosed herein. The stabilizers of the present invention provide improved access to a surgical site at a target vessel on the surface of the heart and may include features which facilitate optimal presentation of the target vessel.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: September 18, 2001
    Assignee: CardioThoracic Systems, Inc.
    Inventors: Harry Leonard Green, II, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
  • Patent number: 6136017
    Abstract: An instrument for spreading the anterior leaflet of a mitral valve. The surgical instrument is designed to allow a surgeon to grip an instrument with one hand during sizing of the anterior leaflet prior to implantation of an annuloplasty ring in a heart valve. The instrument includes a pair of tines that each have an engagement tip for engaging the chordae tendinae proximate an anterior leaflet of a heart valve. The tines are coupled together by a gripping mechanism that may be easily held in one hand, while an annuloplasty ring sizer is held in the surgeon's other hand.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: October 24, 2000
    Assignee: Sulzer Carbomedics Inc.
    Inventors: Joseph Craver, Louis A. Campbell
  • Patent number: 5993384
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis at an angle to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axis of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vein and side branch of interest, the surgeon extends the retractor to cradle the vein in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vein away from the axis of the cannula isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: November 30, 1999
    Assignee: Origin Medsystems, Inc.
    Inventors: John P. Lunsford, Charles Gresl, Jr., Albert K. Chin, John W. Davis, Tenny Chang, Jeffrey W. Baxter
  • Patent number: 5976079
    Abstract: A device for lifting the abdominal wall for conducting endoscopic examinans and surgery within the abdominal cavity having a handling section and a spiral shaped section which is provided with at least one pitched winding, where the distal end of the spiral-shaped section is provided with a larger spiral diameter than the proximal side.
    Type: Grant
    Filed: October 24, 1998
    Date of Patent: November 2, 1999
    Assignee: Fraunhofer Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Joachim Volz, Mike Klicker, Joerg-Uwe Meyer, Herbert Schuck, Volker Paul
  • Patent number: 5895353
    Abstract: A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis at an angle to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axis of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vein and side branch of interest, the surgeon extends the retractor to cradle the vein in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vein away from the axis of the cannula isolate the side branch for exposure to the surgical tool.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: April 20, 1999
    Assignee: Origin Medsystems, Inc.
    Inventors: John P. Lunsford, Charles Gresl, Jr., Albert K. Chin, John W. Davis, Tenny Chang, Jeffrey W. Baxter
  • Patent number: 5895352
    Abstract: A medical retractor apparatus that includes a housing assembly and a retractor assembly is provided. The housing assembly includes a retractor body having a proximal end. The retractor assembly includes a retractor element having a tip. The retractor element is extended/retracted relative to the proximal end. The retractor element is extended offset from the center of the proximal end. A guide member with a slot located at the proximal end prevents unacceptable turning of the retractor element. Preferably, the retractor element includes two spaced loops that can be surrounded by a cover member. The retractor element desirably positions a body vessel of at least about 1 cm in diameter during a surgical procedure. The retractor element has sufficient tensile and compressive strengths to position the great vessel, while avoiding unwanted bulging of the great vessel and visual interference during the surgical procedure.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: April 20, 1999
    Inventor: Jeffrey B. Kleiner
  • Patent number: 5842974
    Abstract: A speculum (20) for obtaining visual access to the inside of an animal's (500) mouth includes a body (22), and handle (28) and two spaced loop-shaped members (30) and (32). Loop-shaped members (30) and (32) have arcuate ends (34) and (36) which individually or in unison may be hooked around the last jaw teeth (502) through (505), while speculum (20) is selectively manipulated by handle (28) to allow visual access to the animal's (500) teeth (501), tongue (506), cheeks (507) and (508), and soft mouth tissue (509). Speculum (20) is fabricated from a rod-like material to ensure maximum visibility by the using veterinarian.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: December 1, 1998
    Inventor: R. Clay Stubbs
  • Patent number: 5643177
    Abstract: An abdominal lift for use in endoscopic surgery is described. The lift defines a substantial portion of a circle. It has a spoke portion and an upstanding member. Its surface may be mechanically compliant and may be coated with an adhesion prevention agent or a lubricous coating. The described method of use includes use of a starter lift followed by insertion of the abdominal lift. The abdominal lift is elevated to establish a pneumoperitoneum at or near ambient air pressure.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: July 1, 1997
    Assignee: Ethicon, Inc.
    Inventors: Mark S. Ortiz, Mark G. Steckel
  • Patent number: 5634882
    Abstract: The present invention relates to a method and device for suspending the abdominal wall of a patient. The device is formed of a substantially rigid rod comprising a first section having a free end and bent to define either a conical helix or a planar serpentine figure. A second section of the rod is used as a pulling member. In accordance with the method of the invention, to suspend the abdominal wall of a patient, (a) an incision is cut in the patient's abdominal wall, (b) the free end of the first rod section is inserted in the incision and the first rod section slid in this incision until it is completely introduced in the patient's abdominal cavity, and (c) the second rod section, situated on the outside of the abdominal wall, is pulled to apply the first rod section on the inner face of the patient's abdominal wall and then to suspend this abdominal wall.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: June 3, 1997
    Inventor: Michel Gagner
  • Patent number: 5573496
    Abstract: A surgical retractor and method for use thereof. The retractor is comprised of an elongate shaft having at one end a screw made of coiled, round wire which terminates at a sharp point for attachment to an organ and a connector at the other end of the shaft. Preferably, the connector comprises an enlarged portion having a polygonal cross section for engagement by a wrench. The retractor is inserted into the peritoneal cavity of a patient through a laparoscopic port and the screw is threaded into the wall of the organ to be retracted, for example, the gallbladder. The organ is resected and thereafter drawn out of the cavity using the retractor.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 12, 1996
    Inventors: William E. McPherson, William B. Saye, Eddie J. Reddick