Patents Assigned to Conmed
  • Electrosurgical generator and method for cross-checking output power
    Patent number: 7972329
    Abstract: The functionality and the output power delivered are evaluated in an electrosurgical generator by calculating first and second values related to the output power delivered by using separate first and second computations. The two calculated values are compared, and an error condition is indicated when the two values differ by a predetermined amount. The separate computations, coupled with the other separate activities of measuring, averaging and sampling the output current and voltage measurements, serve as an effective basis for detecting errors caused by malfunctions or equipment failure. The error condition may be used to as a basis to terminate the output power delivery or indicate the error.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: July 5, 2011
    Assignee: ConMed Corporation
    Inventors: Tim Refior, Jim Pantera
  • Coaptive tissue fusion method and apparatus with current derivative precursive energy termination control
    Patent number: 7972335
    Abstract: Biological tissue is sealed or fused to occlude an opening by compressing apposite sidewall portions of the tissue and applying sufficient energy to cause the fibers of the compressed apposed sidewall portions to intertwine and fuse with one another to form a permanent seal. The energy application is controlled by detecting a precursor fusion condition while applying the energy and before sufficient energy has been applied to achieve a permanent seal. The application of energy is terminated in a time-delayed relationship to the detection of the precursor fusion condition. The precursor fusion condition is detected from derivative values of an envelope established by peak values of cycles of high-frequency current conducted through the tissue.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: July 5, 2011
    Assignee: ConMed Corporation
    Inventors: Francis T. McGreevy, Katherine R. Pavlovsky
  • Coaptive tissue fusion method and apparatus with energy derivative precursive energy termination control
    Patent number: 7972334
    Abstract: Biological tissue is sealed or fused to occlude an opening by compressing apposite sidewall portions of the tissue and applying sufficient energy to cause the fibers of the compressed apposed sidewall portions to intertwine and fuse with one another to form a permanent seal. The energy application is controlled by detecting a precursor fusion condition while applying the energy and before sufficient energy has been applied to achieve a permanent seal. The application of energy is terminated in a time-delayed relationship to the detection of the precursor fusion condition. The precursor fusion condition is detected from derivative values of the total accumulated amount of high-frequency energy conducted through the tissue.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: July 5, 2011
    Assignee: ConMed Corporation
    Inventors: Francis T. McGreevy, Katherine R. Pavlovsky, Alison Rogers
  • Trocar system
    Patent number: 7931623
    Abstract: A trocar system includes a cannula having a cannula head and a cannula tube, and an obturator having a cap and either a rounded tip or a cutting blade. The head and cap form an ergonomically shaped bulbous handle. At least a portion of an outer surface of the cannula head may include a resilient non-slip material. The cannula head may also include a monolithic housing having a port with a Luer Lock fitting and an integrally formed passageway for receiving a stopcock valve.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: April 26, 2011
    Assignee: ConMed Corporation
    Inventors: Daniel M. Wing, Deborah A. Laun, Frank J. Witkowski
  • Electrically conductive hydrogels
    Patent number: 7816412
    Abstract: Electrically conductive adhesive hydrogels formed from a composition which generally includes a monomer, an initiator, an organic solvent, and a cross-linking agent are suitable for use as skin contact adhesives and, particularly, suitable for use as an electrical interface for disposable medical devices. The present hydrogels provide for reduced skin irritation and/or malodor properties, hydrate a subject's skin, readily wet around a subject's skin surface hair, and protect against burning of a subject upon or due to electrical stimulation through the hydrogel.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 19, 2010
    Assignee: ConMed Corporation
    Inventors: Ali Yahiaoui, Anthony Stephen Spencer, Charles Bolian
  • Near-instantaneous responsive closed loop control electrosurgical generator and method
    Patent number: 7799020
    Abstract: An electrosurgical generator has a control system formed by an array of logic gates programmed to execute mathematical algorithms for regulating at least one parameter of output power, output voltage or output current of an output electrosurgical signal in a closed loop response to sensed values of the output voltage and the output current.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: September 21, 2010
    Assignee: ConMed Corporation
    Inventors: Ronald B. Shores, Brian C. Stuebe
  • LOW PROFILE SHORT TAPERED TIP CATHETER
    Publication number: 20100176535
    Abstract: A low profile, short, tapered distal tip catheter and methods for its manufacture are provided. The catheter tip is configured to have a taper over a relatively short length resulting in a low profile that is useful when navigating the catheter tip into tight passages such as the Papilla of Vater. The configuration of the tip and process for making it can be employed in any medical catheter but are found to be most useful in a multilumen papillotome catheter used in biliary procedures.
    Type: Application
    Filed: December 4, 2009
    Publication date: July 15, 2010
    Applicant: Conmed Endoscopic Technologies, Inc.
    Inventor: Steven L. Jacques
  • Electrosurgical generator and method for simulating output signals
    Patent number: 7736358
    Abstract: Voltage and current of an electrosurgical output signal which is conducted by a transformer are accurately simulated by executing a simulation algorithm to compensate for inherent distortion in the values of the current and voltage induced between primary and secondary windings of the transformer. The simulation algorithm is executed in response to voltage and current signals from a primary winding of the transformer, which may be a power output transformer or part of an electrosurgical output signal sensor.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: June 15, 2010
    Assignee: ConMed Corporation
    Inventors: Ronald B. Shores, Brian C. Stuebe
  • Multifunction electrode pad
    Patent number: 7697997
    Abstract: A multifunction electrode (MFE) pad, which includes a multi-strand conductor having one end in the form of dispersed carbon fibers, and another end adapted for connection to a defibrillation unit. A conductive substrate is in electrical communication with one end of the multi-strand conductor. The conductive substrate includes a conductive back side, an intermediate conductive polymer layer, and a conductive front side, the front side being a metal/metal chloride coating containing at least 25% by weight of metal chloride. The MFE pad further includes a conductive hydrogel layer covering said front side of the conductive substrate and a backing layer covering one end of the multi-strand conductor and the back side of the conductive substrate. The backing layer has a surface area that is greater than the surface area of the conductive hydrogel layer.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: April 13, 2010
    Assignee: ConMed Corporation
    Inventors: Christopher Hyatt, Arthur Eddy, Jr.
  • Method and apparatus for precursively controlling energy during coaptive tissue fusion
    Patent number: 7678105
    Abstract: A sidewall of biological tissue which surrounds and defines an opening in the tissue is sealed or fused to occlude the opening by compressing apposite sidewall portions and applying sufficient energy to cause the fibers of the compressed apposed sidewall portions to intertwine and fuse with one another to form a permanent seal. The energy application is controlled by detecting a precursor fusion condition while applying the energy and before sufficient energy has been applied to achieve an adequate seal. The application of energy is terminated in a time-delayed relationship to the detection of the precursor fusion condition such that sufficient energy has been applied to achieve an effective seal. The precursor fusion condition is detected upon the peak RF current delivered to the tissue remaining below a threshold value for a threshold time.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: March 16, 2010
    Assignee: ConMed Corporation
    Inventors: Francis T. McGreevy, Katherine R. Pavlovsky
  • Packaging for medical pads and electrodes
    Patent number: 7668604
    Abstract: Disposable biomedical pads include a conductive outer layer with an adhesive conductive protected layer on a major portion of the outer layer, with a double-sided release layer over the protected layer. Two pads are folded against each other, with the edges sealed to protect the gel layer from the environment. In use, the release layer is discarded, the gel layer placed against the skin, and in the case of defibrillation pads, the paddles are applied directly to the outer conductive layer. The outer layer serves as the packaging layer as well as the dispersive electrode.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: February 23, 2010
    Assignee: Conmed Corporation
    Inventors: Rose M. O'Connor, James C. Calenzo, Sr., Arthur R. Eddy, Jr.
  • Low profile short tapered tip catheter
    Patent number: 7648502
    Abstract: A low profile, short, tapered distal tip catheter and methods for its manufacture are provided. The catheter tip is configured to have a taper over a relatively short length resulting in a low profile that is useful when navigating the catheter tip into tight passages such as the Papilla of Vater. The configuration of the tip and process for making it can be employed in any medical catheter but are found to be most useful in a multilumen papillotome catheter used in biliary procedures.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: January 19, 2010
    Assignee: Conmed Endoscopic Technologies, Inc.
    Inventor: Steven L. Jacques
  • Multi-lumen biliary catheter with angled guidewire exit
    Patent number: 7632241
    Abstract: A multi-lumen biliary catheter in which at least one of the lumens (14, 16) has a side opening port (24, 26) configured to guide a guidewire (32) out of that port at an angle to the longitudinal axis of the catheter. Radiopaque marker bands (34) having different lengths are placed on the distal end of the catheter adjacent the distal openings to facilitate fluoroscopic identification of the distal end orientation in the biliary tract.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: December 15, 2009
    Assignee: Conmed Endoscopic Technologies, Inc.
    Inventors: Isaac Raijman, John E. Dimitriou
  • Integrated three-port receptacle and method for connecting hand and foot switched electrosurgical accessories
    Patent number: 7540871
    Abstract: A three-port receptacle connects both single-prong and three-prong electrical connectors of electrosurgical accessories to an electrosurgical generator. The receptacle includes two control ports for accepting the two control prongs of the three-prong connector and an energy-delivery port for accepting the energy-conducting prong of the three-prong connector. The energy-delivery port also receives an energy-conducting prong of a single-prong connector. A single contact assembly is located behind the energy-delivery port and delivers electrosurgical power to the energy-conducting prongs of both types of accessory connectors.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: June 2, 2009
    Assignee: ConMed Corporation
    Inventor: Wayne J. Gonnering
  • Triple lumen stone balloon catheter and method
    Patent number: 7481800
    Abstract: A triple lumen stone balloon catheter (1) having a tapered distal end (9). A lumen (24) dedicated to transmitting contrast media is dimensioned and adapted to conform to the shape of a kidney in a main shaft of the catheter and conform to the shape of a crescent in a distal end of the catheter. The geometric shaping of the contrast media lumen (24) enables wall thickness to be maintained within acceptable ranges to sustain desirable mechanical characteristics while allowing for enhanced contrast media flow. A method for employing the balloon catheter (1) is also disclosed.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: January 27, 2009
    Assignee: ConMed Endoscopic Technologies
    Inventor: Steven L. Jacques
  • Surgical instrument seal assembly
    Patent number: 7473243
    Abstract: A surgical instrument valve assembly is provided with a valve seal where the upper portion of the valve seal is rigidly mounted to the body of the valve assembly. The lower portion of the valve seal is configured to allow some radial movement while the upper portion of the valve seal remains rigidly mounted within the valve assembly. The valve seal may be provided with a stay that prevents the valve seal from inverting when an instrument in withdrawn from the valve assembly.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: January 6, 2009
    Assignee: ConMed Corporation
    Inventors: William G. Dennis, Michael E. Prosek
  • Surgical smoke evacuator
    Patent number: D616986
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: June 1, 2010
    Assignee: ConMed Corporation
    Inventors: Adam T. Biegen, Wayne J. Gonnering, Richard Thompson, Jeffrey T. Samson, Andrew S. Sawyer
  • Surgical collet
    Patent number: D625803
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: October 19, 2010
    Assignee: ConMed Corporation
    Inventor: Mark Stephen Studenec
  • Surgical handpiece
    Patent number: D626222
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: October 26, 2010
    Assignee: ConMed Corporation
    Inventor: Mark Stephen Studenec
  • Surgical handpiece
    Patent number: D637288
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: May 3, 2011
    Assignee: ConMed Corporation
    Inventor: Christopher Houghton