Esophageal-type Patents (Class 607/124)
  • Patent number: 9877707
    Abstract: Devices, and methods of use thereof, are disclosed for preventing tumor seeding when withdrawing the device along an entry-exit path. Some embodiments of the present invention comprise a method of withdrawing a probe through a tissue via a path that traverses at least some bone tissue, the method including withdrawing the probe through the path, and at least partially concurrently delivering energy in a bipolar manner from the probe to heat a layer of tissue surrounding the probe to a temperature sufficient for thermal coagulation necrosis of cells. The device may be withdrawn incrementally.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: January 30, 2018
    Assignee: Kyphon SÀRL
    Inventors: Neil Godara, Jason Woo
  • Patent number: 9744339
    Abstract: An apparatus for mechanically manipulating hollow organs within the body of a subject, or an organ manipulation apparatus, includes a manipulation section. The manipulation section may include a substantially two-dimensional element, which may have a width that exceeds a distance across a portion of the interior of a hollow organ within which the manipulation section is to be positioned. The manipulation section is configured to manipulate at least a portion of a hollow organ from within, which may modify at least one of a shape, orientation, or location of at least part of the hollow organ. Methods for manipulating hollow organs are also disclosed, as are operating techniques, such as left atrial ablation, in which the shapes, orientations, and/or locations of hollow organs are manipulated to move the hollow organs away from the site of the medical procedure, reducing the potential for damage to the hollow organs.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 29, 2017
    Assignee: CIRCA Scientific, LLC
    Inventor: Shawn P. Fojtik
  • Patent number: 9636512
    Abstract: This disclosure provides an extravascular ICD system and method for defibrillating a heart of a patient. The extravascular ICD system includes multiple extravascular electrical stimulation leads or lead segments located in close proximity to one another and having respective defibrillation electrodes. The ICD system utilizes the multiple defibrillation electrodes to form an extravascular electrode vector that may result a reduction in the shock impedance and/or a reduction in the DFT compared to extravascular ICD systems that include only a single extravascular defibrillation electrode. An ICD of the system may, for example, deliver a defibrillation shock using an electrode vector in which a first polarity of the electrode vector is formed by electrically coupling first and second defibrillation electrodes of first and second leads, respectively, to the therapy circuitry and a second polarity of the electrode vector is formed by electrically coupling a housing of the ICD to the therapy circuitry.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 2, 2017
    Assignee: Medtronic, Inc.
    Inventors: Can Cinbis, Vladimir P. Nikolski, Jian Cao, James K. Carney, Melissa G. T. Christie, Richard J. O'Brien, Amy E. Thompson-Nauman
  • Patent number: 9138575
    Abstract: The invention relates to a multi-pole esophageal electrode catheter that can be used for monitoring, pacing, and cardioversion of atrial fibrillation of the heart, the catheter having a flexible shaft (15) having a proximal end and a distal end and a multipolar electrode (3), characterized in that the distal end of the catheter is formed as a side arranged inflatable balloon (4) so that the multi-pole electrode (3) is aligned in the direction of the heart wall is constantly by means of the balloon.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 22, 2015
    Assignee: Peter Osypka Stiftung
    Inventor: Peter Osypka
  • Patent number: 9037226
    Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface. Conductive ink electrodes are formed on the exterior surface of the endotracheal tube. The conductive ink electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient. At least one conductor is coupled to the conductive ink electrodes and is configured to carry the EMG signals received by the conductive ink electrodes to a processing apparatus.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: May 19, 2015
    Assignee: Medtronic Xomed, Inc.
    Inventors: David C. Hacker, Maria Charles Vijay Stanislaus, Wenjeng Li, Dwayne S. Yamasaki, William C. Brunnett, Kevin L. McFarlin, James Britton Hissong, Robert K. Vaccaro, John M. Murphy, Carla A. Pagotto, Tino Schuler
  • Patent number: 9037245
    Abstract: A method of implanting electrically conductive leads in the gastrointestinal musculature for stimulation of target tissues involves an endoscopic approach through the esophagus. An endoscope is inserted into the esophagus of a patient. The mucosal surface of the anterior esophagus is punctured in the region encompassing the lower esophageal sphincter (LES). A tunnel is created through the submucosa and exits at the muscularis propria, adventitia, or serosal side of the stomach. The lead is navigated further to the anterior abdominal wall. A first end of the lead remains within the gastrointestinal musculature while a second end of the lead is positioned just outside the anterior abdominal wall. The first end of the lead comprises at least one electrode. An implantable pulse generator (IPG) is implanted and operably connected to the second end of the lead to provide electrical stimulation to target tissues.
    Type: Grant
    Filed: September 2, 2012
    Date of Patent: May 19, 2015
    Assignee: EndoStim, Inc.
    Inventors: Virender K. Sharma, Shai Policker, Paul V. Goode, Bevil Hogg
  • Patent number: 8909345
    Abstract: In a patient suffering from neural impairment, stimulation is provided to sensory surfaces of the face and/or neck, or more generally to areas of the body that stimulate the trigeminal nerve, while performing an activity intended to stimulate a brain function to be rehabilitated. The simulation may then be continued after the performance of the activity has ceased. It has been found that the patient's performance of the activity is then improved after stimulation has ceased. Moreover, it tends to improve to a greater extent, and/or for a longer time, when the post-activity stimulation is applied, as compared to when postactivity stimulation is not applied.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: December 9, 2014
    Inventors: Yuri P. Danilov, Mitchell E. Tyler, Kurt A. Kaczmarek
  • Patent number: 8688237
    Abstract: An apparatus for monitoring EMG signals of a patient's laryngeal muscles includes an endotracheal tube having an exterior surface and a first location configured to be positioned at the patient's vocal folds. A first electrode is formed on the exterior surface of the endotracheal tube substantially below the first location. A second electrode is formed on the exterior surface of the endotracheal tube substantially above the first location. The first and second electrodes are configured to receive the EMG signals from the laryngeal muscles when the endotracheal tube is placed in a trachea of the patient.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: April 1, 2014
    Assignee: Medtronic Xomed, Inc.
    Inventors: Maria Charles Vijay Stanislaus, David C. Hacker, Wenjeng Li, David J. Little, Carla A. Pagotto, Dwayne S. Yamasaki
  • Patent number: 8634912
    Abstract: A leadless intra-cardiac medical device includes a housing that is configured to be implanted entirely within a single local chamber of the heart. A first electrode is provided on the housing at a first position such that when the housing is implanted in the local chamber, the first electrode engages the local wall tissue at a local activation site within the conduction network of the local chamber. An intra-cardiac extension is coupled to the housing and configured to extend from the local chamber into an adjacent chamber of the heart. A stabilization arm of the intra-cardiac extension engages the adjacent chamber. A second electrode on the intra-cardiac extension engages distal wall tissue at a distal activation site within the conduction network of the adjacent chamber.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: January 21, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Gene A. Bornzin, Gabriel A. Mouchawar, Xiaoyi Min, John W. Poore, Edward Karst, Richard Samade, Zoltan Somogyi, Didier Theret
  • Patent number: 8577477
    Abstract: An endotracheal tube usable for intraopertive monitoring of the laryngeal nerve. The endotracheal tube includes at least one electrical contact that is movable along and about an exterior sidewall of the endotracheal tube and connected to the exterior sidewall by a connector when the electrode is placed in a position to optimize the conductivity between the nerve being monitored and the electrical contact. The electrical contact may be connected using a locking tube, tape, adhesive, etc.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 5, 2013
    Assignee: ProNerve, LLC
    Inventors: Jeff Thramann, James Higgins
  • Patent number: 8485980
    Abstract: In a method and device for positioning a linear array of electrodes mounted on a distal end section of an elongated flexible member in a patient's respiratory airways at the level of the patient's diaphragm, a length of the elongated flexible member pre-determined to position the linear array of electrodes at the level of the patient's diaphragm is inserted through the patient's respiratory airways. Signals representative of an electrical activity of the patient's diaphragm (EAdi) are detected through the electrodes of the linear array, a presence or absence of ECG signal components is detected in the EAdi signals, and the position of the linear array of electrodes in the patient's respiratory airways is detected in response to the presence or absence of the ECG signal components in the EAdi signals.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: July 16, 2013
    Assignee: Maquet Critical Care AB
    Inventors: Christer Sinderby, Jennifer Beck, Fredrik Jalde, Joachim Sallvin
  • Patent number: 8355801
    Abstract: A system and method for determining on a continuous, real-time basis the proximity of the esophagus to an endocardial catheter during mapping, ablation or other endocardial catheter-based procedures, comprising an esophagus probe catheter and an endocardial catheter adapted for proximal signal transmission between each other. A signal processing unit is included to process and compare a characteristic of the proximity signal that is changes or attenuates with distance between the two catheters, such as impedance, amplitude and/or phase. Audio and/or optical outputs are provided to alert an operator when the distance between the catheters changes or is below a baseline measurement to avoid damage to the esophagus by the endocardial catheter. The system and method may include adaptations of the catheters with location sensor, and a mapping/navigational system for nonfluoroscopic location determination of the catheters.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 15, 2013
    Assignee: Biosense Webster, Inc.
    Inventor: Martin F. O'Sullivan
  • Patent number: 8285399
    Abstract: The present application is directed to a feeding tube in particular for total parental nutrition and/or medicine dosing. The feeding tube functionality is combined with internal monitoring of vital functions, such as ECG, PH, etc. The position of the electrodes is essential for measuring the optimal signal. In the present application the optimal position is determined by measuring the inversion point of the ECG signal. During insertion of the catheter or modified feeding tube the ECG signal is continuously monitored. Via an acoustic signal the strength of the signal is notable. This enables the nursing staff a simple control of the insertion process.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: October 9, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Marcus Jozef Van Bommel, Aaldert Elevelt
  • Patent number: 8271095
    Abstract: A system for determining the proximity of the esophagus to the ablation electrode of an ablation catheter during an ablation procedure is disclosed. The system comprises an ablation catheter having at least one ablation electrode, an esophageal probe catheter having at least one electrode, and a signal processing unit. Both the ablation electrode and the esophageal probe catheter are electrically connected to the signal processing unit. The signal processing unit receives electrical signals from the ablation electrode on the ablation catheter and the electrode on the esophageal probe catheter and compares the signals to determine the proximity of the esophagus to the ablation electrode.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: September 18, 2012
    Assignee: Biosense Webster, Inc.
    Inventor: Martin F. O'Sullivan
  • Patent number: 8209034
    Abstract: Methods and apparatus for treating ailments provide for: inserting a balloon-electrode device into an esophagus of a mammal, the balloon-electrode device including: (i) a nasogastral (NG) having an internal passageway and an external surface, (ii) at least one electrode coupled to the external surface of the NG tube, (iii) a conductor extending through the internal passageway of the NG tube and electrically connecting to the electrode, and (iv) a balloon surrounding the electrode and a portion of the NG tube; inflating the balloon with fluid such that the electrode is substantially centrally located within an interior volume of the balloon; and applying at least one electrical signal to the electrode via the conductor such that an electro-magnetic field emanates from the electrode to at least one of nerves and muscles of the mammal.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: June 26, 2012
    Assignee: ElectroCore LLC
    Inventors: Bruce Simon, Steven Mendez, Hecheng Hu, Richard P. Dickerson, James R. Pastena
  • Patent number: 7343204
    Abstract: Apparatus connect electrically conductive wire to a miniature, implantable sensor or stimulator device for detecting electrical signals or stimulating living tissue. The implantable device has an electrically conductive end on its case which is intimately connected to a doorknob electrode for communicating electrical signals between the living tissue and the device by a biocompatible wire. A spring clip removably attaches to the doorknob electrode so that the wire may be easily attached to the doorknob electrode during surgery. An insulating rubber boot, which may be silicone, surrounds the case end, doorknob electrode, and spring clip to isolate the living tissue from the conductive components. The components are biocompatible materials.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: March 11, 2008
    Assignee: Alfred E. Mann Foundation For Scientific Research
    Inventors: Joseph H. Schulman, Janusz Kuzma
  • Patent number: 7292895
    Abstract: A ready-to-install electrode system designed for use with an endoscope for performing cardioversion through the esophagus, and an assembly of the system and an endoscope. The system is characterized in that it includes a globally tubular protective cover (3) designed to be fitted on the endoscope (40) to cover at least the distal end of the endoscope, at least one electrode (2a-d) including a conductive electric membrane (21) connected to an electric conduction wire designed to be connected by its free end to a cardioversion apparatus, first and second fixing elements adapted to fix the at least one electrode respectively on the distal end of the endoscope and on the tubular wall (31) of the cover, such that the conductive membrane is directly accessible from outside the cover.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 6, 2007
    Inventors: Bouziane Benhalima, Zohra Benhalima
  • Patent number: 7283875
    Abstract: A nerve stimulation device has a pulse generator for generating stimulation pulses and an output for the stimulation pulses from the pulse generator, which is connectable to an electrode arrangement adapted for interaction with a living being to stimulate the phrenic nerve. The nerve stimulation device is made more safe and effective by the provision of an input connectable to an esophageal electrode for the reception of measurement signals. The esophageal electrode is adapted to be inserted in the esophagus of the living being for obtaining measurement signals. A signal analyzer filters myo-electrical signals from the diaphragm out of the measurement signals and a regulating unit regulates the pulse generator dependent on the myo-electrical signals.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: October 16, 2007
    Assignee: Maquet Critical Care AB
    Inventor: Åke Larsson
  • Patent number: 7008419
    Abstract: Instruments for thermally-mediated treatment of a patient's lower esophageal sphincter (LES) to induce an injury healing response to thereby populate the extracellular compartment of walls of the LES with collagen matrices to altere the biomechanics of the LES to provide an increased intra-esophageal pressure for preventing acid reflux. A preferred embodiment is a bougie-type device for trans-esophageal introduction that carries conductive electrodes for delivering Rf energy to walls of the LES (i) to induce the injury healing response or (ii) to “model” collagenous tissues of the LES by shrinking collagen fibers therein.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: March 7, 2006
    Inventor: John H. Shadduck
  • Patent number: 6878118
    Abstract: An esophageal stethoscope includes a tubular flexible body having an acoustic input region. A carrier member, which is separate from the tubular flexible body, is selectively engageable with the tubular flexible body either proximally or distally of the acoustic input region. The carrier member carries one or more devices for providing esophageal recording, monitoring or stimulation functions. For transesophageal cardiac pacing, electrodes are mounted to the carrier member such that engagement of the carrier member with the tubular flexible body functions to convert the esophageal stethoscope to a pacing stethoscope. To carry out a sensing, recording or monitoring function, such as esophageal oximetry, one or more oximetry probes are mounted to the carrier member such that engagement of the carrier member with the esophageal stethoscope converts the stethoscope for use in an oximetry sensing application.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: April 12, 2005
    Inventor: John L. Atlee, III
  • Patent number: 6855116
    Abstract: An esophageal stethoscope includes a tubular flexible body having an acoustic input region. A carrier member, which is separate from the tubular flexible body, is selectively engageable with the tubular flexible body either proximally or distally of the acoustic input region. The carrier member carries one or more devices for providing esophageal recording, monitoring or stimulation functions. For transesophageal cardiac pacing, electrodes are mounted to the carrier member such that engagement of the carrier member with the tubular flexible body functions to convert the esophageal stethoscope to a pacing stethoscope. To carry out a sensing, recording or monitoring function, such as esophageal oximetry, one or more oximetry probes are mounted to the carrier member such that engagement of the carrier member with the esophageal stethoscope converts the stethoscope for use in an oximetry sensing application.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: February 15, 2005
    Inventor: John L. Atlee, III
  • Publication number: 20030097167
    Abstract: The invention provides for an esophageal probe for transesophageal cardiac stimulation. An esophageal probe can be made de novo or can be a modified transesophageal echocardiogram (TEE) probe. The invention further provides for an electrode-containing membrane to so modify a TEE probe for transesophageal cardiac stimulation. Methods are provided by the invention for using esophageal probes of the invention for transesophageal pacing or defibrillation.
    Type: Application
    Filed: November 13, 2002
    Publication date: May 22, 2003
    Inventor: Paul A. Friedman
  • Patent number: 6438400
    Abstract: An electrode useful for generating or receiving electrical signals generally comprises a base and more than one dome-like protuberance on an exterior surface of the base. The electrodes can be utilized in connection with various probe applications. For example, the electrodes can be utilized with an esophageal probe for invasively monitoring cardiac functions, including the ECG or cardiac output of a patient. To further minimize the differences in voltage potential as may be caused by electrolytes present at the point of contact, a gold-plated layer may be provided on the outer surface of the electrodes. An exemplary probe generally comprises a chassis with an electrical cable extending from the proximal end of the chassis and with the cable terminating at an electrical plug configured for connection to a cardiac monitor.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 20, 2002
    Assignee: Heska Corporation
    Inventors: Lane Beard, James P. Howard, Donald J. Melnikoff, Robert L. Young
  • Patent number: 6266549
    Abstract: An electrode useful for generating electrical signals generally comprises a base and more than one dome-like protuberance on an exterior surface of the annular ring-like base. The electrodes can be utilized in connection with various probe applications. For example, the electrodes can be utilized with a probe adapted for insertion into an anatomical canal, e.g. the esophagus of an animal or a human for ECG or cardiac output measurements. An exemplary probe generally comprises a chassis with an electrical cable extending from the proximal end of the chassis and with the cable terminating at an electrical plug configured for connection to a cardiac monitor. The probe also includes an electrode assembly comprising the dome-like protuberances and configured to generate or receive electrical signals that are indicative of the cardiac functions of the patient. The probe may further include an engagement device attached to the chassis for stabilizing the probe within the esophagus.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: July 24, 2001
    Assignee: Heska Corporation
    Inventors: Donald J. Melnikoff, Robert L. Young
  • Patent number: 6142941
    Abstract: The invention concerns a device for carrying out a transespohageal echocardiography and a cardioversion and includes a single endoscope (1) provided at its distal end with an ultrasonic sensor (3) and in the proximity of its distal end with at least one electrode (8) for generating electric shocks. The invention is usefull for the treatment of auricular fibrillation.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: November 7, 2000
    Inventors: Bouziane Benhalima, Zohra Lalaoui
  • Patent number: 6006138
    Abstract: Device and method for effecting ventricular cardiac pacing by inserting electrodes which are supported by a carrier into the stomach of a patient via the patient's esophagus, and pressing the electrodes against the wall of the stomach by the action of a carrier displacing member.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: December 21, 1999
    Assignee: T. Anthony Don Michael
    Inventor: T. Anthony Don Michael
  • Patent number: 5967977
    Abstract: A mechanically expandable esophageal medical lead has an elongated flexible body which carries at a distal end thereof one or more electrically conducting members. The conducting members are moveable laterally with respect to the body portion of the medical lead by means of a mechanical structure contained therein. The degree and extent of mechanical movement can be controlled through manipulation of a pull wire axial movement mechanism.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: October 19, 1999
    Assignee: Medtronic, Inc.
    Inventors: Deniz Ayaz Mullis, Kristi M. Legatt
  • Patent number: 5692506
    Abstract: A transnasal conduit for transesophageal echocardiography (TEE) probe insertion. A transnasal conduit has a relatively large inner diameter with relatively thin pliable walls. A normally closed or closeable distal end facilitates insertion of the transnasal conduit into the patient during intubation. Pinch clamp means in the form of a thumbscrew or the like may be used to secure a probe temporarily to the transnasal conduit both during and after intubation. A patient flange having ears or lobes may be adjacent the pinch clamp and serve to temporarily secure the transnasal conduit along with any accompanying probe to the patient by means of an elastic strap, string, or the like. The open proximal end of the transnasal conduit may be bell shaped, or flared, to facilitate introduction of the probe. By providing a transnasal conduit that allows atraumatic of a TEE probe, conscious ICU or ambulatory patients may be monitored using TEE thereby enhancing patient diagnosis and monitoring.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: December 2, 1997
    Inventor: Gerald S. Linder
  • Patent number: 5626618
    Abstract: An apparatus for aiding in the treatment of cardiac arrest patients which includes a flexible tube having an elongated bladder attached between its opposite ends and a stomach bladder attached to its distal end. Each bladder has a conductive portion which serves as an electrode. Wires are embedded in the sidewall of the tube and connected to each electrode. Passageways formed in the sidewall of the tube and fluid-conveying tubes connected thereto form a fluid path through which a saline solution or a gas passes to fill the bladders. The tube is positioned so that the stomach bladder lies in the fundus of the stomach and the esophageal bladder lies in the posterior to the heart. The stomach bladder is filled and moderate countertraction is applied. Then the esophageal bladder is filled. The esophageal bladder serves as a platform by expanding and hardening the esophagus behind the heart. The heart is then compressed between the sternum and the hardened esophageal bladder, thus enhancing artificial circulation.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: May 6, 1997
    Assignee: The Ohio State University
    Inventors: Kevin R. Ward, Charles G. Brown, Roger R. Dzwonczyk
  • Patent number: 5556425
    Abstract: An esophageal/stomach placement electrode comprises a flexible tubular member designed to be inserted into the esophagus and/or stomach. An electrode is carried by the tube in the region of its distal end. The tube is hinged by its distal end which enables the end of the tube to laterally actuate in the esophagus or the stomach. An actuating mechanism is disposed in the tube in the region of the hinge and is controlled from a point external to the body for causing the distal end of the tube to actuate laterally, and engage the esophagus or stomach with it. The inner portion of the hinge is more bendable than the outer portion. Additionally, the control cables are all within the tubular member.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: September 17, 1996
    Assignee: Brunswick Biomedical Technologies, Inc.
    Inventors: Roy Hewson, J. Richard Hewson, Carl E. Hewson
  • Patent number: 5431696
    Abstract: An esophageal probe for transesophageal cardiac stimulation or monitoring. The probe comprises an elongate member adapted to be positioned within the esophagus of a patient and having a distal end and a proximal end. A second elongate member is slidably mounted on the first and engages at least one electrode carrier for selectively displacing an electrode laterally relative to the elongate member for positioning the electrode at the optimal position for cardiac stimulation and monitoring of the patient.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: July 11, 1995
    Inventor: John L. Atlee, III
  • Patent number: 5417713
    Abstract: A transesophageal defibrillating system includes a large area anterior patch electrode and a large area posterior patch electrode, as in some conventional exterior defibrillating systems. An esophageal probe has a pair of ring electrodes, one of which is carried at or near its distal end. The system is operatively arranged to supply defibrillation pulses between the large anterior patch electrode and either the distal electrode (carried by the probe) or the large posterior electrode, depending on which one of the latter two electrodes is connected or coupled by the clinician or paramedic to the defibrillating pulse source. The system includes a source of pacing pulses which may be supplied to the patient via the anterior patch electrode and at least one of the electrodes carried by the esophageal probe. The distal electrode is believed to be the more effective electrode to use for this purpose.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: May 23, 1995
    Assignee: Leonard Bloom
    Inventor: Todd J. Cohen
  • Patent number: 5394880
    Abstract: An esophageal stethoscope comprises a tubular flexible body having a proximal end and a closed distal end, an acoustic region defined on the body and spaced from the closed distal end. First and second spaced apart electrodes are mounted on one side of the body and between the distal end and the acoustic input region. The electrodes are spaced from each other and the distance between the mid-point of the electrodes and the acoustic input region is about 5-10 cm. A second pair of electrodes are mounted between the distal end and the first electrode pair and are manually movable laterally into engagement with the esophageal tissue.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: March 7, 1995
    Inventor: John L. Atlee, III
  • Patent number: 5387232
    Abstract: A method and apparatus for emergency pacing of a surgical patient's heart through an esophageal catheter. Pacing electrodes are connected to the external wall of the catheter having sufficient surface area to reduce the current density to a level which does not burn or injure the patient's esophagus. Pacing pulses are applied to the electrodes by a pacing generator and the pulses are transmitted through the esophagus wall to the patient's heart.
    Type: Grant
    Filed: October 8, 1992
    Date of Patent: February 7, 1995
    Assignee: Synchrotech Medical Corporation
    Inventor: Dennis R. Trailer
  • Patent number: 5370679
    Abstract: An esophageal probe for transesophageal cardiac stimulation or monitoring. The probe comprises an elongate member adapted to be positioned within the esophagus of a patient and having a distal end and a proximal end. A second elongate member is slidably mounted on the first and engages at least one electrode carrier for selectively displacing an electrode laterally relative to the elongate member for positioning the electrode at the optimal position for cardiac stimulation and monitoring of the patient.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: December 6, 1994
    Inventor: John L. Atlee, III
  • Patent number: 5343860
    Abstract: A single use disposable esophageal electrode structure is formed with a planar sheet body member. The body member carries a plurality of spaced-apart conductive electrode members. A temperature sensor can also be carried on the body member. A layer of adhesive on the body member can be used to affix it to an esophageal probe. A plurality of conducting members is coupled to the body member. Each of the conducting members is in turn coupled to a respective one of the electrodes. A free end of the conducting members carries an electrical connector for connection to other electrical units.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: September 6, 1994
    Assignee: Arzco Medical Systems, Inc.
    Inventors: William T. Metzger, Rimas Buinevicius, Richard M. Bilof