WO1987004081A1 - Catheter a electrode pour l'ablation du faisceau de his - Google Patents

Catheter a electrode pour l'ablation du faisceau de his Download PDF

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Publication number
WO1987004081A1
WO1987004081A1 PCT/HU1987/000001 HU8700001W WO8704081A1 WO 1987004081 A1 WO1987004081 A1 WO 1987004081A1 HU 8700001 W HU8700001 W HU 8700001W WO 8704081 A1 WO8704081 A1 WO 8704081A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
frontal
catheter
catheter tube
tube
Prior art date
Application number
PCT/HU1987/000001
Other languages
English (en)
Inventor
Péter POLGÁR
Original Assignee
Licencia Találmányokat Értékesito^" És Innovációs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licencia Találmányokat Értékesito^" És Innovációs filed Critical Licencia Találmányokat Értékesito^" És Innovációs
Publication of WO1987004081A1 publication Critical patent/WO1987004081A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/283—Invasive
    • A61B5/29—Invasive for permanent or long-term implantation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
    • A61B5/283—Invasive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30—Surgical pincettes without pivotal connections
    • A61B2017/306—Surgical pincettes without pivotal connections holding by means of suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484—Anchoring means, e.g. spreading-out umbrella-like structure
    • A61B2017/3488—Fixation to inner organ or inner body tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/1206—Generators therefor
    • A61B2018/1266—Generators therefor with DC current output

Definitions

  • the invention relates to an electrode catheter for the ablation of the His bundle which comprises a catheter tube with a frontal electrode and the tube has a frontal section defining an opening.
  • a connector plug provides an electrical connection for the frontal electrode.
  • a newer method for treating drug resistant paroxysmal supraventricular tachycardia employs the electrical destruction of the His bundle (i.e. AV junction). This method was described by Gallagher and his co-workers in 1982 (New England Journal of Medicine 1982; 28 pp. 194-200).
  • the basic method is to deliver a DC shock to the His bundle through a conventional His electrode.
  • the electro-coagulation thus leads to AV block.
  • a disadvantage of the method is that the position of the electrode cannot be checked at the time the DC shock is delivered. It may move and may cause injury to the myocardium elsewhere.
  • a further drawback lies in the varying resistance of the contact between the electrode and the endocardium which may change from case to case and cannot be checked at all. For providing a sufficient destructive effect, a high-energy electrical discharge should be established which can be accompanied by unwanted side effects.
  • Electrode catheters utilizing suction effects have been widely used in medical practice.
  • a known type of such electrodes is represented by the bipolar suction electrodes of the company VYGON (Aachen, Germany), e.g. the type 1172.06 used for recording monophasic action potentials.
  • This type of electrode catheter comprises a small central opening at its frontal end and a central electrode slightly extending out axially from the opening like the tip of a needle which is coupled to a coiled spring arranged in the interior of the frontal section of the catheter tube.
  • the other electrode is arranged as a sleeve behind the short hollow frontal section of the catheter tube of insulating material and this sleeve coaxially encircles the flexible central needle electrode.
  • Electrode catheters provided with an opening for suction purposes that can be used preferably for sensing the internal pul monal pressure.
  • Such electrode catheters comprise a solid cylindrical frontal electrode and a hollow rear electrode arranged about 15 mm behind the frontal electrode and the distance between the two electrodes is maintained by a short section of a catheter tube which is provided with a suction opening on its mantle surface (e.g. the type 1126.13 of the company VYGON) .
  • Such catheters cannot provide the advantage of correct positioning referred to in above-cited paper when used for the ablation of the His bundle
  • the object of the invention is to provide an improved elect rode catheter for the ablation of the His bundle.
  • an electrode catheter which has a frontal electrode made as a hollow cylindrical sleeve that defines a central opening communicating with the interior of the catheter tube and through which the sucking force is exerted, the axis of the frontal electrode forming the extension of the axis of the catheter tube, and the outer diameters of the frontal electrode and of the catheter tube being equal or nearly equal.
  • the frontal electrode of such an electrode catheter has an annular face which has a much larger contact surface than that offered by the needle electrode.
  • the electrode catheter comprises a sleeve-like rear electrode arranged behind the rear end of the frontal electrode at a distance between about 5 to 15 mm, and the frontal end of the catheter tube is coupled to a cylindrical shoulder of the rear electrode arranged concentrically around the catheter axis, and the rear electrode has a frontal shoulder similar to the rear one which is coupled through a catheter tube section to the frontal electrode, and both of these electrodes are electrically connected to respective lead out wires extending in and insulated from the catheter tube, and these wires are coupled to respective connector plugs.
  • the so-obtained bipolar electrode renders the usage of a separate bipolar electrode for the localization unnecessary and it is capable of delivering the bipolar ECG signals required for exact electrode positioning.
  • a closing member is connected to the rear end portion of the catheter tube and this member comprises a connection stub communicating with the interior of the catheter tube which is capable of providing a connection towards a pump, and the member comprises electrode wires interconnecting the lead out wires with the connector plugs.
  • the thickness is decreasing towards the frontal end in an arced transition, whereby an annular face is provided which is narrower than the average wall thickness of the frontal elect rode .
  • the electrode catheter according to the invention can well be used for the ablation of the His bundle without the danger of unwanted side effects.
  • Fig. 1 is a sketch illustrating the application of the electrode catheter according to the invention.
  • Fig. 2 shows the enlarged elevation view of the frontal end section of the electrode catheter in half sectional view.
  • Fig. 1 shows a sketch of the application of electrode catheter 1 made according to the invention. It is preferred if the electrode catheter is designed for a single use whereafter is should be disposed.
  • the electrode catheter 1 comprises a catheter tube 2 which can have an F6 size according to the internationally accepted size standard and the catheter can be 100 cm long.
  • a frontal electrode 3 is arranged in the frontal end of the electrode catheter 1 and a rear electrode 4 is located at a distance of about 10 mm behind the frontal electrode 3.
  • a closing member 5 is coupled to the rear end of the catheter tube 2.
  • Member 5 is provided with a stub 6 to which the end of a suction pipe can be connected.
  • Electrode wires 7 and 8 extend out from the member 5 with connector plugs 9 and 10 at their free ends.
  • FIG. 2 the frontal section of the electrode catheter 1 is shown in an enlarged and partly sectional view.
  • the frontal electrode 3 is a hollow sleeve which has a slightly arced frontal rim, and a thin lead-out wire 11 is connected to the interior of the sleeve by means of a soldered or any other unreleasable connection.
  • the rear electrode 4 is a short tube section provided with respective shoulders in the front and rear end portions.
  • An extension tube 12 made of the same material as the catheter tube 2 connects the frontal shoulder of the rear electrode 4 to the frontal electrode 3.
  • the interior of the rear electrode 4 is connected to another lead-out wire 13 similar to the wire 11.
  • the frontal end of the catheter tube 2 is tightly coupled to the rear shoulder of the rear electrode 4 and the so designed electrode catheter 1 has a hollow interior extending continuously throughout the full length thereof.
  • the two lead-out wires 11 and 13 are connected to the respective electrode wires 7 and 8.
  • Fig. 1 shows that the electrode catheter extends into the right heart after having been introduced by means of percutaneous puncture through the femoral vein, and the frontal electrode 3 abuts the His bundle.
  • This position can be adjusted under control of an electrocardiograph 15 coupled to the frontal and rear electrodes 3 and 4 and under fluoroscopic inspection.
  • the tap valve of the closing member 5 is turned and the hollow interior of the electrode catheter 1 is actively coupled to a suction pump 16 by which a depression of -13.6 kPa is established.
  • a suction pump 16 by which a depression of -13.6 kPa is established.
  • the annular face of the frontal electrode 3 gets pulled to the His bundle.
  • the frontal electrode 3 is affixed in the adjusted location and position.
  • An outer electrode 17 is placed over the patient's left scapula, then the connector plug 9 coupled to the frontal electrode 3 and the electrode 17 are connected to respective terminals of a defibrillator 14 and by means of a synchronous discharge of suitable energy, e.g. 50 Wsec, a DC shock is delivered.
  • suitable energy e.g. 50 Wsec
  • a DC shock is delivered.
  • the resulting electro-coagulation provides a total AV block.
  • the suction is disrupted and physiologic saline is infused into the catheter to separate the frontal electrode 3 from the His bundle.
  • the patient's heart is controlled with an external pacemaker via a previously introduced

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Cardiology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

Un cathéter (1) à électrode pour l'ablation du faisceau de His comprend une électrode (3) en forme de manchon creux et court à une extrémité du tube cathéter (2), une ouverture centrale communiquant avec l'intérieur du tube cathéter (2) à travers lequel une force d'aspiration peut être appliquée pour positionner et fixer l'électrode sur la partie désirée de la paroi du coeur. L'électrode est utilisée conjointement avec une électrode extérieure (4) permettant d'établir un choc électrique qui produit un blocage atrio-ventriculaire.
PCT/HU1987/000001 1986-01-08 1987-01-08 Catheter a electrode pour l'ablation du faisceau de his WO1987004081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU8679A HU194499B (en) 1986-01-08 1986-01-08 Electrode-catheter for ablation of his fascicle
HU79/86 1986-01-08

Publications (1)

Publication Number Publication Date
WO1987004081A1 true WO1987004081A1 (fr) 1987-07-16

Family

ID=10947805

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1987/000001 WO1987004081A1 (fr) 1986-01-08 1987-01-08 Catheter a electrode pour l'ablation du faisceau de his

Country Status (3)

Country Link
EP (1) EP0256043A1 (fr)
HU (1) HU194499B (fr)
WO (1) WO1987004081A1 (fr)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356009A1 (fr) * 1988-08-01 1990-02-28 C.R. Bard, Inc. Cathéter avec électrode d'ablation contournée
EP0358336A1 (fr) * 1988-08-11 1990-03-14 Edward George Charles Arthur Dr. Boyd Dispositif de destruction contrôlée de tissu
EP0500215A1 (fr) * 1991-01-30 1992-08-26 ANGELASE, Inc. Procédé et appareil pour la détection de le tachyarhythmie
EP0637218A1 (fr) * 1992-04-21 1995-02-08 St. Jude Medical, Inc. Instrument electrochirurgical et procede associe
EP0668058A1 (fr) * 1994-02-16 1995-08-23 Novoste Corporation Cathéter positionable d'électrophysiologie
EP0791329A1 (fr) * 1996-02-20 1997-08-27 Cardiothoracic Systems, Inc. Instrument chirurgical pour imposer une pression négative afin de stabiliser le tissu cardiaque pendant une opération
US5906607A (en) * 1996-02-20 1999-05-25 Cardiothoracic Systems, Inc. Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery
US6033362A (en) * 1997-04-25 2000-03-07 Beth Israel Deaconess Medical Center Surgical retractor and method of use
US6071235A (en) * 1996-04-26 2000-06-06 Genzyme Corporation Coronary stabilizing retractor with occluding means
US6152874A (en) * 1996-04-26 2000-11-28 Genzyme Corporation Adjustable multi-purpose coronary stabilizing retractor
US6254535B1 (en) 1996-04-26 2001-07-03 Genzyme Corporation Ball and socket coronary stabilizer
US6328688B1 (en) 1995-09-20 2001-12-11 Medtronic, Inc. Method and apparatus for temporarily immobilizing a local area of tissue
US6348036B1 (en) 1999-01-24 2002-02-19 Genzyme Corporation Surgical retractor and tissue stabilization device
US6458079B1 (en) * 1997-04-25 2002-10-01 Beth Israel Deaconess Medical Center Surgical retractor and method of use
US6464690B1 (en) 2000-10-11 2002-10-15 Popcab, Llc Port off-pump beating heart coronary artery bypass heart stabilization system
US6503245B2 (en) 2000-10-11 2003-01-07 Medcanica, Inc. Method of performing port off-pump beating heart coronary artery bypass surgery
US6592573B2 (en) 2000-10-11 2003-07-15 Popcab, Llc Through-port heart stabilization system
US6723069B1 (en) 1994-02-16 2004-04-20 Novoste Corporation Electrophysiology positioning catheter
US6730022B2 (en) 1999-01-24 2004-05-04 Thomas E. Martin Surgical retractor and tissue stabilization device having an adjustable sled member
US6736808B1 (en) * 1995-08-22 2004-05-18 Massoud Motamedi Apparatus for emitting therapeutic energy within tissue
US6939348B2 (en) 2003-03-27 2005-09-06 Cierra, Inc. Energy based devices and methods for treatment of patent foramen ovale
US7027876B2 (en) * 2001-10-12 2006-04-11 Medtronic, Inc. Lead system for providing electrical stimulation to the Bundle of His
US7235049B1 (en) * 1997-04-25 2007-06-26 Beth Israel Deaconess Medical Center Surgical retractor and method of positioning an artery during surgery
US7972330B2 (en) 2003-03-27 2011-07-05 Terumo Kabushiki Kaisha Methods and apparatus for closing a layered tissue defect
US8021362B2 (en) 2003-03-27 2011-09-20 Terumo Kabushiki Kaisha Methods and apparatus for closing a layered tissue defect
US8038672B2 (en) 2003-03-27 2011-10-18 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8052678B2 (en) 2003-03-27 2011-11-08 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8057469B2 (en) 2003-03-27 2011-11-15 Terumo Kabushiki Kaisha Methods and apparatus for treatment of patent foramen ovale
US8109274B2 (en) 2005-04-11 2012-02-07 Terumo Kabushiki Kaisha Methods and electrode apparatus to achieve a closure of a layered tissue defect
US8133221B2 (en) 2004-06-21 2012-03-13 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of anatomic tissue defects
US8301265B2 (en) 2007-09-10 2012-10-30 Medtronic, Inc. Selective depth electrode deployment for electrical stimulation
US8852181B2 (en) 2003-03-27 2014-10-07 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of anatomic tissue defects
US8874237B2 (en) 2008-04-16 2014-10-28 Medtronic, Inc. Delivery catheter including side port and electrodes
US9022998B2 (en) 2010-02-26 2015-05-05 Maquet Cardiovascular Llc Blower instrument, apparatus and methods of using
US9211405B2 (en) 2007-03-22 2015-12-15 University Of Virginia Patent Foundation Electrode catheter for ablation purposes and related method thereof
US9218752B2 (en) 2010-02-18 2015-12-22 University Of Virginia Patent Foundation System, method, and computer program product for simulating epicardial electrophysiology procedures
US9314265B2 (en) 2007-03-19 2016-04-19 University Of Virginia Patent Foundation Access needle pressure sensor device and method of use
US9402608B2 (en) 2003-07-08 2016-08-02 Maquet Cardiovascular Llc Organ manipulator apparatus
US9468396B2 (en) 2007-03-19 2016-10-18 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
US9498198B2 (en) 1999-05-04 2016-11-22 Maquet Cardiovascular, Llc Surgical instruments for accessing and stabilizing a localized portion of a beating heart
US9642534B2 (en) 2009-09-11 2017-05-09 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
US10166066B2 (en) 2007-03-13 2019-01-01 University Of Virginia Patent Foundation Epicardial ablation catheter and method of use
US10335280B2 (en) 2000-01-19 2019-07-02 Medtronic, Inc. Method for ablating target tissue of a patient
US11058354B2 (en) 2007-03-19 2021-07-13 University Of Virginia Patent Foundation Access needle with direct visualization and related methods
US11951303B2 (en) 2007-11-09 2024-04-09 University Of Virginia Patent Foundation Steerable epicardial pacing catheter system placed via the subxiphoid process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD98608A1 (fr) * 1972-07-04 1973-07-12
US4090518A (en) * 1975-08-25 1978-05-23 Elam James O Esophago-pharyngeal airway
FR2560052A1 (fr) * 1984-02-29 1985-08-30 Benhaim Jean Perfectionnement a une sonde de catheterisme vasculaire
GB2154884A (en) * 1984-03-02 1985-09-18 Brunswick Mfg Co Inc Heart pacer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD98608A1 (fr) * 1972-07-04 1973-07-12
US4090518A (en) * 1975-08-25 1978-05-23 Elam James O Esophago-pharyngeal airway
FR2560052A1 (fr) * 1984-02-29 1985-08-30 Benhaim Jean Perfectionnement a une sonde de catheterisme vasculaire
GB2154884A (en) * 1984-03-02 1985-09-18 Brunswick Mfg Co Inc Heart pacer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Soviet Inventions Illustrated, section P,Q, week 84/39, 07 November 1984 (07.11.84) Derwent Publications LTD. London, P34, SU-1069 829 (KAUN MED). *
Soviet Inventions Illustrated, section P,Q, week 85/10, 17 April 1985 (17.04.85) Derwent Publications LTD. London, P34, SU-1107 875 (KIEV DOCTOR). *
Soviet Inventions Illustrated, section P,Q, week 85/37, 23 October 1985 (23.10.85) Derwent Publications LTD. London, P34, SU-1140 792 (KAUN). *

Cited By (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356009A1 (fr) * 1988-08-01 1990-02-28 C.R. Bard, Inc. Cathéter avec électrode d'ablation contournée
EP0358336A1 (fr) * 1988-08-11 1990-03-14 Edward George Charles Arthur Dr. Boyd Dispositif de destruction contrôlée de tissu
US5409008A (en) * 1991-01-30 1995-04-25 Angeion Corporation Process and apparatus for mapping of tachyarrhythmia
EP0500215A1 (fr) * 1991-01-30 1992-08-26 ANGELASE, Inc. Procédé et appareil pour la détection de le tachyarhythmie
EP0637218A4 (fr) * 1992-04-21 1995-12-06 St Jude Medical Instrument electrochirurgical et procede associe.
EP0637218A1 (fr) * 1992-04-21 1995-02-08 St. Jude Medical, Inc. Instrument electrochirurgical et procede associe
EP0668058A1 (fr) * 1994-02-16 1995-08-23 Novoste Corporation Cathéter positionable d'électrophysiologie
US6723069B1 (en) 1994-02-16 2004-04-20 Novoste Corporation Electrophysiology positioning catheter
US6736808B1 (en) * 1995-08-22 2004-05-18 Massoud Motamedi Apparatus for emitting therapeutic energy within tissue
US6328688B1 (en) 1995-09-20 2001-12-11 Medtronic, Inc. Method and apparatus for temporarily immobilizing a local area of tissue
US6350229B1 (en) 1995-09-20 2002-02-26 Medtronic, Inc. Method and apparatus for temporarily immobilizing a local area of tissue
EP0791329A1 (fr) * 1996-02-20 1997-08-27 Cardiothoracic Systems, Inc. Instrument chirurgical pour imposer une pression négative afin de stabiliser le tissu cardiaque pendant une opération
US5906607A (en) * 1996-02-20 1999-05-25 Cardiothoracic Systems, Inc. Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery
US6032672A (en) * 1996-02-20 2000-03-07 Cardiothoracic Systems, Inc. Surgical devices for imposing a negative pressure to stabilize cardiac tissue during surgery
AU726135B2 (en) * 1996-02-20 2000-11-02 Cardiothoracic Systems, Inc. Surgical devices for imposing a negative pressure to stabilise cardiac tissue during surgery
US6254535B1 (en) 1996-04-26 2001-07-03 Genzyme Corporation Ball and socket coronary stabilizer
US6152874A (en) * 1996-04-26 2000-11-28 Genzyme Corporation Adjustable multi-purpose coronary stabilizing retractor
US6071235A (en) * 1996-04-26 2000-06-06 Genzyme Corporation Coronary stabilizing retractor with occluding means
US7235049B1 (en) * 1997-04-25 2007-06-26 Beth Israel Deaconess Medical Center Surgical retractor and method of positioning an artery during surgery
US6458079B1 (en) * 1997-04-25 2002-10-01 Beth Israel Deaconess Medical Center Surgical retractor and method of use
US7736308B2 (en) 1997-04-25 2010-06-15 Teleflex-Ct Devices Incorporated Surgical retractor
US7468030B1 (en) 1997-04-25 2008-12-23 Beth Israel Deaconess Medical Center Surgical retractor
US6033362A (en) * 1997-04-25 2000-03-07 Beth Israel Deaconess Medical Center Surgical retractor and method of use
US6730022B2 (en) 1999-01-24 2004-05-04 Thomas E. Martin Surgical retractor and tissue stabilization device having an adjustable sled member
US6348036B1 (en) 1999-01-24 2002-02-19 Genzyme Corporation Surgical retractor and tissue stabilization device
US9498198B2 (en) 1999-05-04 2016-11-22 Maquet Cardiovascular, Llc Surgical instruments for accessing and stabilizing a localized portion of a beating heart
US10335280B2 (en) 2000-01-19 2019-07-02 Medtronic, Inc. Method for ablating target tissue of a patient
US6592573B2 (en) 2000-10-11 2003-07-15 Popcab, Llc Through-port heart stabilization system
US6503245B2 (en) 2000-10-11 2003-01-07 Medcanica, Inc. Method of performing port off-pump beating heart coronary artery bypass surgery
US6464690B1 (en) 2000-10-11 2002-10-15 Popcab, Llc Port off-pump beating heart coronary artery bypass heart stabilization system
US7027876B2 (en) * 2001-10-12 2006-04-11 Medtronic, Inc. Lead system for providing electrical stimulation to the Bundle of His
US8021362B2 (en) 2003-03-27 2011-09-20 Terumo Kabushiki Kaisha Methods and apparatus for closing a layered tissue defect
US8070747B2 (en) 2003-03-27 2011-12-06 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8038673B2 (en) 2003-03-27 2011-10-18 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8038671B2 (en) 2003-03-27 2011-10-18 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8038672B2 (en) 2003-03-27 2011-10-18 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8038669B2 (en) 2003-03-27 2011-10-18 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8052678B2 (en) 2003-03-27 2011-11-08 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US8057469B2 (en) 2003-03-27 2011-11-15 Terumo Kabushiki Kaisha Methods and apparatus for treatment of patent foramen ovale
US8066701B2 (en) 2003-03-27 2011-11-29 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US7972330B2 (en) 2003-03-27 2011-07-05 Terumo Kabushiki Kaisha Methods and apparatus for closing a layered tissue defect
US8075554B2 (en) 2003-03-27 2011-12-13 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US6939348B2 (en) 2003-03-27 2005-09-06 Cierra, Inc. Energy based devices and methods for treatment of patent foramen ovale
US8852181B2 (en) 2003-03-27 2014-10-07 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of anatomic tissue defects
US7914527B2 (en) 2003-03-27 2011-03-29 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of patent foramen ovale
US9402608B2 (en) 2003-07-08 2016-08-02 Maquet Cardiovascular Llc Organ manipulator apparatus
US10383612B2 (en) 2003-07-08 2019-08-20 Maquet Cardiovascular Llc Organ manipulator apparatus
US8133221B2 (en) 2004-06-21 2012-03-13 Terumo Kabushiki Kaisha Energy based devices and methods for treatment of anatomic tissue defects
US8109274B2 (en) 2005-04-11 2012-02-07 Terumo Kabushiki Kaisha Methods and electrode apparatus to achieve a closure of a layered tissue defect
US10702335B2 (en) 2007-03-13 2020-07-07 University Of Virginia Patent Foundation Electrode catheter for ablation purposes and related method thereof
US11937872B2 (en) 2007-03-13 2024-03-26 University Of Virginia Patent Foundation Epicardial ablation catheter and method of use
US10166066B2 (en) 2007-03-13 2019-01-01 University Of Virginia Patent Foundation Epicardial ablation catheter and method of use
US9314265B2 (en) 2007-03-19 2016-04-19 University Of Virginia Patent Foundation Access needle pressure sensor device and method of use
US11058354B2 (en) 2007-03-19 2021-07-13 University Of Virginia Patent Foundation Access needle with direct visualization and related methods
US9468396B2 (en) 2007-03-19 2016-10-18 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
US9211405B2 (en) 2007-03-22 2015-12-15 University Of Virginia Patent Foundation Electrode catheter for ablation purposes and related method thereof
US8301265B2 (en) 2007-09-10 2012-10-30 Medtronic, Inc. Selective depth electrode deployment for electrical stimulation
US11951303B2 (en) 2007-11-09 2024-04-09 University Of Virginia Patent Foundation Steerable epicardial pacing catheter system placed via the subxiphoid process
US9610438B2 (en) 2008-04-16 2017-04-04 Medtronic, Inc. Delivery catheter including side port and electrodes
US8874237B2 (en) 2008-04-16 2014-10-28 Medtronic, Inc. Delivery catheter including side port and electrodes
US9642534B2 (en) 2009-09-11 2017-05-09 University Of Virginia Patent Foundation Systems and methods for determining location of an access needle in a subject
US11083381B2 (en) 2009-09-11 2021-08-10 University Of Virginia Patent Foundation Systems and methods for determining pressure frequency changes in a subject
US9218752B2 (en) 2010-02-18 2015-12-22 University Of Virginia Patent Foundation System, method, and computer program product for simulating epicardial electrophysiology procedures
US9662434B2 (en) 2010-02-26 2017-05-30 Maquet Cardiovascular Llc Blower instrument, apparatus and methods of using
US9022998B2 (en) 2010-02-26 2015-05-05 Maquet Cardiovascular Llc Blower instrument, apparatus and methods of using

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HU194499B (en) 1988-02-29
HUT42332A (en) 1987-07-28
EP0256043A1 (fr) 1988-02-24

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