US3729008A - Electrode for atrial pacing with curved end for atrial wall engagement - Google Patents

Electrode for atrial pacing with curved end for atrial wall engagement Download PDF

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Publication number
US3729008A
US3729008A US3729008DA US3729008A US 3729008 A US3729008 A US 3729008A US 3729008D A US3729008D A US 3729008DA US 3729008 A US3729008 A US 3729008A
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Prior art keywords
catheter
electrode
curve
atrium
heart
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Expired - Lifetime
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B Berkovits
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American Optical Corp
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American Optical Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/05Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056Transvascular endocardial electrode systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/02Details
    • A61N1/04Electrodes
    • A61N1/05Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/056Transvascular endocardial electrode systems
    • A61N1/057Anchoring means; Means for fixing the head inside the heart
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00Electrotherapy; Circuits therefor
    • A61N1/18Applying electric currents by contact electrodes
    • A61N1/32Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372Arrangements in connection with the implantation of stimulators
    • A61N1/375Constructional arrangements, e.g. casings

Abstract

A curvilinear electrode suitable for being curved-over and supported by a moving atrium wall of a patient''s heart. The electrode includes at least one long, thin, flexible electrical conductor encapsulated by an electrically insulating flexible catheter sleeve. The electrode has a sufficient resilience to maintain the curve in a plane and yet allow the curve to be flexed linear for insertion through a blood vessel of the patient.

Description

nited States atet 45] Apr. 24, 1973 Eerkovits ELECTRODE FOR ATlRIAL PACING WITH CURVED END FOR ATRIAL WALL ENGAGEMENT [75] Inventor: Barough V. Berkovits, Newton Highlands, Mass.

[73] Assignee: American Optical Corporation, Southbridge, Mass.

[22] Filed: Dec. 28, 1970 [21] Appl. No.: 10l,836

[52] US. Cl. ..128/418, 128/348, 128/419 P [51] Int. Cl. ..A61n

[58] Field of Search ..128/348, 349 R, 350 R, 128/404, 418, 419 P, 2 M

[56] References Eited UNITED STATES PATENTS 3,516,412 6/1970 Ackerman ..128/418 3,485,234 12/1969 Stevens ..128/348 3,348,548 10/1967 Chardock.... ....l28/419 P 2,118,631 5/1938 Wappler ..128/2 M 3,419,010 12/1968 Williamson ..128/350 R I FOREIGN PATENTS OR APPLICATIONS 707,333 4/1931 France ..128/349R OTHER PUBLICATIONS Dodinot et al., Annals of the New York Academy of Sciences Vol. 167, Art. 2, pp. 1038-1054, October,

Primary ExaminerWilliam E. Kamm I Attorney-William C. Nealon, Noble S. Williams, Robert J Bird, Bernard L. Sweeney and Joel Wall ABSTRACT 9 Claims, 6 Drawing Figures BAROUH BERKOVITS INVENTOR.

ELECTRODE FOR ATRIAL PACING WITH CURVEI) END FOR ATRIAL WALL ENGAGEMENT BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates, generally, to an area of medical electronics concerned with electrical stimulation of a patients heart. More particularly, the present inverition relates to improved means for conducting electrical stimulation from heart stimulating apparatus to the atrium of the heart.

2. Description of Prior Art In the medical electronics field, electronic devices have been developed for providing stimulation to the heart. These electronic devices are commonly called pacers. An example of a demand pacer is disclosed in US. Pat. No. 3,528,428 issued in the name of the applicant of the present invention.

Applicant has filed other pacer patent applications including Ser. No. 8IO,519 filed on Mar. 26, 1969 and which has matured into U.S. Pat. No. 3,595,242, and 884,825 filed on Dec. 15, 1969 and which has matured into US. Pat. No. 3,661,158. In these copending applications, heart stimulating devices are disclosed that stimulate both an atrium and a ventricle of the heart. These pacers require two sets of electrodes. The present invention is capable of use with most pacers and is particularly adapted for use with this latter type of pacer.

The electrodes normally used with these devices are long, thin, flexible conductors enclosed by a flexible catheter. At one end of the catheter, the conductor is exposed in order to make contact with the heart.

In some electrode apparatus configurations (called bipolar electrodes), two conductors are included within one catheter, thereby providing a forward conduction path and return path for electrical stimulation to the heart. For this type of electrode, two conductors are exposed and each conductor makes contact with the heart.

The bipolar electrode apparatus used with ventricular stimulation has a generally linear and flexible shape. The two conductors are exposed at one end of the catheter approximately 1 inch from each other. The electrode apparatus is inserted into a blood vessel and is pushed into the ventricle. It normally rests in the ventricular cavity without falling out. The ventricle is formed so that the electrode will normally be confined to its region without difficulty.

But, by comparison, the electrode used for stimulating an atrium has difficulty in maintaining its position within the confines of the atrial cavity. The atrium has smooth walls allowing easy slippage of an ordinary linear electrode therefrom.

Thus, a problem with the prior art electrode is that it is not well suited for use with the atrium. Applicants solution to this problem is to provide improved electrode apparatus which can be inserted in a normal manner into a vessel of the body leading to the atrium, and to automaticallycause a gripping of, and a support by, the atrium wall. The present invention solves the electrode-heart contact problem associated with atrial pacing.

SUMMARY OF THE INVENTION The invention relates generally to electrode apparatus for use with heart stimulating devices. More particularly, the invention relates to a curved electrode apparatus and catheter particularly suited for use in stimulating an atrium of a patients heart. A particular resilience is built into the catheter to provide a particular shape suitable for being supported by the wall of the atrium. The resilience built into the catheter has a twofold purpose; first it can create an axial torque to cause a twisting action to tend to maintain the curve in a plane, and second it has a flexibility for providing an approximately linear shape for proper insertion into a blood vessel.

An advantage of this invention is to permit reliable atrial stimulation. The electrode of the present invention will not slip out of the atrium, nor will it loosen and make poor electrical contact with the atrium.

It is thus an object of the present invention to provide an improved electrode apparatus for use with heart stimulating devices.

It is a further object of the present invention to provide an improved electrode for stimulating an atrium of the heart.

Other objects and advantages of the present invention will become apparent to one having reasonable skill in the art after referring to the detailed description of the appended drawings wherein:

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 depicts two electrodes, one of which is curvilinear in accordance with the present invention, both of which are operatively connected to a heart stimulat ing device;

FIG. 2 is a sectional view of the catheter 11 of FIG. 1 in a first illustrative embodiment of the present invention;

FIG. 3 is a sectional view of a second illustrative embodiment of the present invention;

FIG. 4 is a sectional view of a third illustrative embodiment of the present invention;

FIG. 5 depicts schematically the axial or twisting torque provided by the present invention; and,

FIG. 6 is a side view of a curved electrode in accordance with the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, heart stimulating device 10 is connected to catheter 12 which encloses conductors l3 and 23. These conductors are insulated from each other. One provides a signal or stimulating conductive path and the other provides a return conductive path. This catheter electrode apparatus is an example of prior art. It is inserted into the ventricle of the heart to provide it with electrical stimulation.

By comparison, catheter 11 is also operatively connected to pacer or heart stimulator 10, and similarly has conductors I4 and 24 enclosed therein. But, this catheter is curvilinear or curved near the end that makes contact with the heart. The cross-section of catheter 11 at the location designated as 15 is thicker than the cross-section of the catheter at a point closer to the pacer. This can be seen more clearly in FIG. 6.

In FIG. 6, curved region designated as 30 is thicker in cross-section than the catheter cross-section at the location designated as 40. The reason for this difference in cross-section is due to an additional amount of resilient insulation at region 30.

The catheter can be made from various electrical non-conductive materials such as polyvinyl chloride, plastics, polyethylene, polyurethane and other bodycompatible elastic materials. In the present invention, the catheter is made from a high medical grade durameter (resilient) rubber. The additional amount of rubber at the location of the curve is added to the ordinary flexible catheter by such processes as vulcanization or injection molding. The additional rubber forces the catheter to assume an unnatural shape but one which possesses minimal potential energy.

In FIG. 6, the catheter is depicted as temporarily linear, and this is shown by dotted diagram 32. This is the shape and potential energy state of the catheter when it is inserted into a blood vessel (not shown) to be pushed up to the atrium (not shown).

Upon entering the atrium, the catheter springs back as depicted by direction 31 to the curve shape depicted. This curve shape has the proper dimensions to conform to the atrium and to be suitable for gripping the moving atrium wall. The atrium has a smooth wall which allows easy slippage of an ordinary electrode. The curved electrode shown in FIG. 1 and FIG. 6, will now slip from the atrium, as it is curved over the atrium wall. While inserted in the heart over the atrium wall (not shown), the inherent return tension or resilience causes the catheter to apply tension in step with the moving atrium as the heart is beating. This maintains good electrical contact.

The curved electrode fits into the atrium and will not fall out and slide into the ventricle (not shown) by virtue of its shape. But, the electrode can be pulled out by application of distal force in a surgical procedure. When the electrode is removed from the atrium by the application of distal force, the shape of the curved catheter is shown by dotted configuration 32.

FIG. 2 is a cross-section of the curved electrode taken at curved region of catheter 11. Flanges 16 are what cause the electrode to maintain its curved shape. Flanges 16 lie on the inside of the curve. (They could be on the outside of the curve and the resulting resilience effects would be similar.)

FIG. 3 is a second illustrative embodiment of the present invention taken at curved region 15 of catheter 11. Flange 17 is shown in a different shape from flanges 16, but has much the same effect as flanges 16.

FIG. 4 is a third illustrative embodiment of the present invention taken at curved region 15 of catheter 11 and is a combination of flanges l6 and 17. In FIG. 4, flange 17 is at the inside of the curve and flanges 16 are on the outside of the curve. This configuration combines the resilient advantages of FIGS. 2 and 3.

The purpose of the flanges is two-fold. First, a resilient restoring force must be created to make the electrode spring back in direction 31 as depicted in FIG. 6. Second, the flange is intended to diminish twisting (axial torques which will tend to displace the curve portion of the electrode out of a plane) and thus encourages the curve portion to be planar. (If a curved electrode is allowed to twist excessively while in operational connection with an atrium, it could fall out of the atrium cavity.)

In FIG. 5, arrows 18 indicate directions in which the axial torque resisting force is applied by flanges 16 and 17. In FIG. 6, application of this torque resisting force will tend to cause the curve of the electrode to remain in the plane of the paper.

In a preferred embodiment, the curve has a 1-inch radius, and is generally in the shape of a semi-circle. There is approximately 1.5 to 2 centimeters between exposed conductors of the same catheter. The exposed conductors can be made of platinum.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Other cross-sectional areas of rubber, or other materials suitable for creating these torques within a body environment can be used. Also, grooves or ridges can be arranged on the inside curve of the catheter to even better grip the atrium wall.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within immediate range of the claims, are therefore intended to be embraced therein.

What is claimed is:

1. Electrode apparatus of the intravascular type for use with devices for electrically stimulating the heart of a patient, said apparatus including at least one long, thin, flexible electrical conductor, an electrically-insulating flexible catheter enclosing said conductor, there being an electrically non-conducting material forming an outer wall of said catheter, said conductor having one end extending through the exterior surface of said catheter to permit electrical contact between said heart and said conductor near one end of said conductor, and catheter curve-holding means carried by said outer wall adjacent said end and substantially parallel to and secured along substantially its entire length to the catheter for normally urging said catheter in a curve near said end, the configuration of said curve arranged to be curved-over and supported by a wall of an atrium moving in response to the beating of said heart and being suitable for causing electrical contact to be main tained between said conductor and said atrium, and where said catheter curve-holding means further includes torsion means for maintaining an axial restoring torque on said catheter at said end to encourage said curve to be planar.

2. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means further includes flexible means for permitting said curve to be extended into an approximately linear shape for insertion of said catheter into and removal of said catheter from a blood vessel leading to the heart of said patient.

3. Electrode apparatus as recited in claim 2 and wherein said catheter curve-holding means further includes contractile means for causing said approximately linear shape to be formed into said curve about the top of said wall of said atrium after said insertion into said heart.

4. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of rubber.

8. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of polyethylene.

9. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of polyurethane.

Claims (9)

1. Electrode apparatus of the intravascular type for use with devices for electrically stimulating the heart of a patient, said apparatus including at least one long, thin, flexible electrical conductor, an electrically-insulating flexible catheter enclosing said conductor, there being an electrically non-conducting material forming an outer wall of said catheter, said conductor having one end extending through the exterior surface of said catheter to permit electrical contact between said heart and said conductor near one end of said conductor, and catheter curveholding means carried by said outer wall adjacent said end and substantially parallel to and secured along substantially its entire length to the catheter for normally urging said catheter in a curve near said end, the configuration of said curve arranged to be curved-over and supported by a wall of an atrium moving in response to the beating of said heart and being suitable for causing electrical contact to be maintained between said conductor and said atrium, and where said catheter curveholding means further includes torsion means for maintaining an axial restoring torque on said catheter at said end to encourage said curve to be planar.
2. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means further includes flexible means for permitting said curve to be extended into an approximately linear shape for insertion of said catheter into and removal of said catheter from a blood vessel leading to the heart of said patient.
3. Electrode apparatus as recited in claim 2 and wherein said catheter curve-holding means further includes contractile means for causing said approximately linear shape to be formed into said curve about the top of said wall of said atrium after said insertion into said heart.
4. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of rubber.
5. Electrode apparatus as recited in claim 1 and wherein said apparatus includes two conductors.
6. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means includes ridges for increased gripping of the atrium wall.
7. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of polyvinyl chloride.
8. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of polyethylene.
9. Electrode apparatus as recited in claim 1 and wherein said catheter curve-holding means is made of polyurethane.
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Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804098A (en) * 1972-04-17 1974-04-16 Medronic Inc Body implantable lead
US3890977A (en) * 1974-03-01 1975-06-24 Bruce C Wilson Kinetic memory electrodes, catheters and cannulae
US3939843A (en) * 1974-03-04 1976-02-24 Medtronic, Inc. Transvenous electrode
US3949757A (en) * 1974-05-13 1976-04-13 Sabel George H Catheter for atrio-ventricular pacemaker
US4057067A (en) * 1976-04-06 1977-11-08 Lajos Thomas Z Atrioventricular electrode
US4136703A (en) * 1978-03-09 1979-01-30 Vitatron Medical B.V. Atrial lead and method of inserting same
US4176659A (en) * 1976-07-21 1979-12-04 Peter Rolfe Catheter with measurement electrodes
US4285347A (en) * 1979-07-25 1981-08-25 Cordis Corporation Stabilized directional neural electrode lead
EP0044688A1 (en) * 1980-07-14 1982-01-27 Philip O.(deceased) legally represented by Bates H. Richard Littleford Electrode for endocardial insertion
US4351345A (en) * 1978-10-10 1982-09-28 Carney Andrew L Methods of securing electrodes to the heart
US4357947A (en) * 1980-07-14 1982-11-09 Littleford Philip O Electrode and method for endocardial atrial pacing
US4394866A (en) * 1981-01-21 1983-07-26 Research Corporation S-A Node helical lead for atrial pacemakers and method of placement
US4401126A (en) * 1981-02-13 1983-08-30 Bertil Reenstierna Endocardial, implantable lead for pacemaker
US4402328A (en) * 1981-04-28 1983-09-06 Telectronics Pty. Limited Crista terminalis atrial electrode lead
US4454888A (en) * 1981-10-07 1984-06-19 Cordis Corporation Cardiac pacing lead with curve retainer
US4458677A (en) * 1979-09-19 1984-07-10 Mccorkle Jr Charles E Intravenous channel cardiac electrode and lead assembly and method
US4467817A (en) * 1981-04-20 1984-08-28 Cordis Corporation Small diameter lead with introducing assembly
US4543090A (en) * 1983-10-31 1985-09-24 Mccoy William C Steerable and aimable catheter
FR2564322A1 (en) * 1984-05-18 1985-11-22 Lefebvre Jean Marie Intracardiac electrode
US4601705A (en) * 1983-10-31 1986-07-22 Mccoy William C Steerable and aimable catheter
US4624265A (en) * 1985-07-24 1986-11-25 Ge. Sv. In. S.R.L. Electro-catheter used in physiological cardiac stimulation simulative of the auriculo-ventricular sequence, featuring active engagement of the cardiac muscle
EP0206248A1 (en) * 1985-06-20 1986-12-30 Medtronic, Inc. Epicardial electrode arrangements and system for applying electrical energy to a human heart
DE3049652C2 (en) * 1979-06-14 1987-06-04 Bertil Reenstierna Endocardial, implantable lead f} r pacemakers
WO1987004355A1 (en) * 1986-01-22 1987-07-30 Westmed Pty. Ltd. Epicardiac pacing lead
US4777951A (en) * 1986-09-19 1988-10-18 Mansfield Scientific, Inc. Procedure and catheter instrument for treating patients for aortic stenosis
US4856529A (en) * 1985-05-24 1989-08-15 Cardiometrics, Inc. Ultrasonic pulmonary artery catheter and method
US4869248A (en) * 1987-04-17 1989-09-26 Narula Onkar S Method and apparatus for localized thermal ablation
US4934340A (en) * 1989-06-08 1990-06-19 Hemo Laser Corporation Device for guiding medical catheters and scopes
US4944727A (en) * 1986-06-05 1990-07-31 Catheter Research, Inc. Variable shape guide apparatus
US5052407A (en) * 1988-04-14 1991-10-01 Mieczyslaw Mirowski Cardiac defibrillation/cardioversion spiral patch electrode
US5055101A (en) * 1983-10-31 1991-10-08 Catheter Research, Inc. Variable shape guide apparatus
US5058586A (en) * 1987-07-27 1991-10-22 Siemens Aktiengesellschaft Catheter for implantation in the heart, having an integrated measuring probe
US5067957A (en) * 1983-10-14 1991-11-26 Raychem Corporation Method of inserting medical devices incorporating SIM alloy elements
US5090956A (en) * 1983-10-31 1992-02-25 Catheter Research, Inc. Catheter with memory element-controlled steering
US5114402A (en) * 1983-10-31 1992-05-19 Catheter Research, Inc. Spring-biased tip assembly
US5144960A (en) * 1991-03-20 1992-09-08 Medtronic, Inc. Transvenous defibrillation lead and method of use
US5165403A (en) * 1991-02-26 1992-11-24 Medtronic, Inc. Difibrillation lead system and method of use
US5190546A (en) * 1983-10-14 1993-03-02 Raychem Corporation Medical devices incorporating SIM alloy elements
US5231989A (en) * 1991-02-15 1993-08-03 Raychem Corporation Steerable cannula
EP0635280A1 (en) * 1993-07-22 1995-01-25 Pacesetter AB Device for making an electrode
US5405374A (en) * 1993-08-25 1995-04-11 Medtronic, Inc. Transvenous defibrillation lead and method of use
US5609621A (en) * 1995-08-04 1997-03-11 Medtronic, Inc. Right ventricular outflow tract defibrillation lead
US5611777A (en) * 1993-05-14 1997-03-18 C.R. Bard, Inc. Steerable electrode catheter
US5683445A (en) * 1996-04-29 1997-11-04 Swoyer; John M. Medical electrical lead
US5728178A (en) * 1993-03-25 1998-03-17 The Ohio State University Guide tube for gastrostomy tube placement
EP0839547A1 (en) 1996-10-28 1998-05-06 C.R. Bard, Inc. Steerable catheter with fixed curve
US5755761A (en) * 1996-04-26 1998-05-26 Pharmatarget, Inc. Atrial pacing catheter and method having multiple electrodes in the right atrium and coronary sinus
US5810790A (en) * 1996-11-19 1998-09-22 Ebling; Wendell V. Catheter with viewing system and port connector
US5871530A (en) * 1997-04-29 1999-02-16 Medtronic, Inc. Intracardiac defibrillation leads
US5922014A (en) * 1997-09-02 1999-07-13 Medtronic, Inc. Single pass lead and method of use
US5999858A (en) * 1997-07-17 1999-12-07 Medtronic, Inc. Medical electrical lead
US6083150A (en) * 1999-03-12 2000-07-04 C. R. Bard, Inc. Endoscopic multiple sample biopsy forceps
US20040215307A1 (en) * 2001-11-29 2004-10-28 Koen Michels Medical lead designs for lead placement through tissue
US20060161206A1 (en) * 2004-11-04 2006-07-20 Efimov Igor R Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US20090105655A1 (en) * 2007-10-17 2009-04-23 Tyco Healthcare Group Lp Access port using shape altering anchor
US20090204164A1 (en) * 2007-12-11 2009-08-13 Efimov Igor R Method and device for low-energy termination of atrial tachyarrhythmias
US20100016917A1 (en) * 2006-11-13 2010-01-21 Washington University In St. Louis Cardiac pacing using the inferior nodal extension
US20100198257A1 (en) * 2006-09-06 2010-08-05 Joshua Stopek Bioactive Substance in a Barbed Suture
US20100204729A1 (en) * 2008-09-11 2010-08-12 Ahmad Robert Hadba Tapered Looped Suture
US20100204730A1 (en) * 2008-10-09 2010-08-12 Nicholas Maiorino Knotted Suture End Effector
US20100211098A1 (en) * 2008-02-20 2010-08-19 Ahmad Robert Hadba Compound Barb Medical Device and Method
US20100211097A1 (en) * 2008-02-20 2010-08-19 Ahmad Robert Hadba Compound Barb Medical Device and Method
US8206291B2 (en) 2009-03-27 2012-06-26 Tyco Healthcare Group Lp Portal device
US8473051B1 (en) 2010-12-29 2013-06-25 Cardialen, Inc. Low-energy atrial cardioversion therapy with controllable pulse-shaped waveforms
US8560066B2 (en) 2007-12-11 2013-10-15 Washington University Method and device for three-stage atrial cardioversion therapy
US8874208B2 (en) 2007-12-11 2014-10-28 The Washington University Methods and devices for three-stage ventricular therapy
US9636504B2 (en) 2012-12-11 2017-05-02 Galvani, Ltd. Arrhythmia electrotheraphy device and method with provisions for mitigating patient discomfort

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374527A (en) * 1978-07-19 1983-02-22 Medtronic, Inc. Body stimulation lead
US4386615A (en) * 1979-08-28 1983-06-07 Edgar Sowton Electrodes for cardiac pacemakers
JPS5863488A (en) * 1981-10-14 1983-04-15 Tokyo Juki Ind Co Ltd Paper feeder for printer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR707333A (en) * 1930-10-14 1931-07-07 Indwelling catheter
US2118631A (en) * 1935-04-03 1938-05-24 Wappler Frederick Charles Catheter stylet
US3348548A (en) * 1965-04-26 1967-10-24 William M Chardack Implantable electrode with stiffening stylet
US3419010A (en) * 1966-01-17 1968-12-31 Cordis Corp Catheter
US3485234A (en) * 1966-04-13 1969-12-23 Cordis Corp Tubular products and method of making same
US3516412A (en) * 1965-08-16 1970-06-23 Electro Catheter Corp Bipolar electrode having irregularity at inserting end thereof and method of insertion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR707333A (en) * 1930-10-14 1931-07-07 Indwelling catheter
US2118631A (en) * 1935-04-03 1938-05-24 Wappler Frederick Charles Catheter stylet
US3348548A (en) * 1965-04-26 1967-10-24 William M Chardack Implantable electrode with stiffening stylet
US3516412A (en) * 1965-08-16 1970-06-23 Electro Catheter Corp Bipolar electrode having irregularity at inserting end thereof and method of insertion
US3419010A (en) * 1966-01-17 1968-12-31 Cordis Corp Catheter
US3485234A (en) * 1966-04-13 1969-12-23 Cordis Corp Tubular products and method of making same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Dodinot et al., Annals of the New York Academy of Sciences Vol. 167, Art. 2, pp. 1038 1054, October, 1969. *

Cited By (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804098A (en) * 1972-04-17 1974-04-16 Medronic Inc Body implantable lead
US3890977A (en) * 1974-03-01 1975-06-24 Bruce C Wilson Kinetic memory electrodes, catheters and cannulae
US3939843A (en) * 1974-03-04 1976-02-24 Medtronic, Inc. Transvenous electrode
US3949757A (en) * 1974-05-13 1976-04-13 Sabel George H Catheter for atrio-ventricular pacemaker
US4057067A (en) * 1976-04-06 1977-11-08 Lajos Thomas Z Atrioventricular electrode
US4176659A (en) * 1976-07-21 1979-12-04 Peter Rolfe Catheter with measurement electrodes
US4136703A (en) * 1978-03-09 1979-01-30 Vitatron Medical B.V. Atrial lead and method of inserting same
US4351345A (en) * 1978-10-10 1982-09-28 Carney Andrew L Methods of securing electrodes to the heart
DE3049652C2 (en) * 1979-06-14 1987-06-04 Bertil Reenstierna Endocardial, implantable lead f} r pacemakers
US4285347A (en) * 1979-07-25 1981-08-25 Cordis Corporation Stabilized directional neural electrode lead
US4458677A (en) * 1979-09-19 1984-07-10 Mccorkle Jr Charles E Intravenous channel cardiac electrode and lead assembly and method
EP0044688A1 (en) * 1980-07-14 1982-01-27 Philip O.(deceased) legally represented by Bates H. Richard Littleford Electrode for endocardial insertion
US4401127A (en) * 1980-07-14 1983-08-30 Littleford Philip O Stable electrodes for endocardial pacing
US4357947A (en) * 1980-07-14 1982-11-09 Littleford Philip O Electrode and method for endocardial atrial pacing
US4394866A (en) * 1981-01-21 1983-07-26 Research Corporation S-A Node helical lead for atrial pacemakers and method of placement
US4401126A (en) * 1981-02-13 1983-08-30 Bertil Reenstierna Endocardial, implantable lead for pacemaker
US4467817A (en) * 1981-04-20 1984-08-28 Cordis Corporation Small diameter lead with introducing assembly
US4402328A (en) * 1981-04-28 1983-09-06 Telectronics Pty. Limited Crista terminalis atrial electrode lead
US4454888A (en) * 1981-10-07 1984-06-19 Cordis Corporation Cardiac pacing lead with curve retainer
US5190546A (en) * 1983-10-14 1993-03-02 Raychem Corporation Medical devices incorporating SIM alloy elements
US6306141B1 (en) 1983-10-14 2001-10-23 Medtronic, Inc. Medical devices incorporating SIM alloy elements
US5067957A (en) * 1983-10-14 1991-11-26 Raychem Corporation Method of inserting medical devices incorporating SIM alloy elements
US5597378A (en) * 1983-10-14 1997-01-28 Raychem Corporation Medical devices incorporating SIM alloy elements
US4601705A (en) * 1983-10-31 1986-07-22 Mccoy William C Steerable and aimable catheter
US5114402A (en) * 1983-10-31 1992-05-19 Catheter Research, Inc. Spring-biased tip assembly
US4543090A (en) * 1983-10-31 1985-09-24 Mccoy William C Steerable and aimable catheter
US5090956A (en) * 1983-10-31 1992-02-25 Catheter Research, Inc. Catheter with memory element-controlled steering
US5055101A (en) * 1983-10-31 1991-10-08 Catheter Research, Inc. Variable shape guide apparatus
FR2564322A1 (en) * 1984-05-18 1985-11-22 Lefebvre Jean Marie Intracardiac electrode
US4856529A (en) * 1985-05-24 1989-08-15 Cardiometrics, Inc. Ultrasonic pulmonary artery catheter and method
EP0206248A1 (en) * 1985-06-20 1986-12-30 Medtronic, Inc. Epicardial electrode arrangements and system for applying electrical energy to a human heart
US4624265A (en) * 1985-07-24 1986-11-25 Ge. Sv. In. S.R.L. Electro-catheter used in physiological cardiac stimulation simulative of the auriculo-ventricular sequence, featuring active engagement of the cardiac muscle
WO1987004355A1 (en) * 1986-01-22 1987-07-30 Westmed Pty. Ltd. Epicardiac pacing lead
US4944727A (en) * 1986-06-05 1990-07-31 Catheter Research, Inc. Variable shape guide apparatus
US4777951A (en) * 1986-09-19 1988-10-18 Mansfield Scientific, Inc. Procedure and catheter instrument for treating patients for aortic stenosis
US4869248A (en) * 1987-04-17 1989-09-26 Narula Onkar S Method and apparatus for localized thermal ablation
US5058586A (en) * 1987-07-27 1991-10-22 Siemens Aktiengesellschaft Catheter for implantation in the heart, having an integrated measuring probe
US5052407A (en) * 1988-04-14 1991-10-01 Mieczyslaw Mirowski Cardiac defibrillation/cardioversion spiral patch electrode
US4934340A (en) * 1989-06-08 1990-06-19 Hemo Laser Corporation Device for guiding medical catheters and scopes
US5231989A (en) * 1991-02-15 1993-08-03 Raychem Corporation Steerable cannula
US5345937A (en) * 1991-02-15 1994-09-13 Raychem Corporation Steerable cannula
US5165403A (en) * 1991-02-26 1992-11-24 Medtronic, Inc. Difibrillation lead system and method of use
US5144960A (en) * 1991-03-20 1992-09-08 Medtronic, Inc. Transvenous defibrillation lead and method of use
US5728178A (en) * 1993-03-25 1998-03-17 The Ohio State University Guide tube for gastrostomy tube placement
US5611777A (en) * 1993-05-14 1997-03-18 C.R. Bard, Inc. Steerable electrode catheter
US5935102A (en) * 1993-05-14 1999-08-10 C. R. Bard Steerable electrode catheter
US5571160A (en) * 1993-07-22 1996-11-05 Pacesetter Ab Permanently curved sleeve for shaping an electrode cable, and method for implanting the cable with the sleeve
EP0635280A1 (en) * 1993-07-22 1995-01-25 Pacesetter AB Device for making an electrode
US5405374A (en) * 1993-08-25 1995-04-11 Medtronic, Inc. Transvenous defibrillation lead and method of use
US5609621A (en) * 1995-08-04 1997-03-11 Medtronic, Inc. Right ventricular outflow tract defibrillation lead
US5755761A (en) * 1996-04-26 1998-05-26 Pharmatarget, Inc. Atrial pacing catheter and method having multiple electrodes in the right atrium and coronary sinus
US5683445A (en) * 1996-04-29 1997-11-04 Swoyer; John M. Medical electrical lead
US5779669A (en) * 1996-10-28 1998-07-14 C. R. Bard, Inc. Steerable catheter with fixed curve
EP0839547A1 (en) 1996-10-28 1998-05-06 C.R. Bard, Inc. Steerable catheter with fixed curve
US5810790A (en) * 1996-11-19 1998-09-22 Ebling; Wendell V. Catheter with viewing system and port connector
US6178355B1 (en) 1997-04-29 2001-01-23 Medtronic, Inc. Intracardiac defibrillation leads
US5871530A (en) * 1997-04-29 1999-02-16 Medtronic, Inc. Intracardiac defibrillation leads
US6038472A (en) * 1997-04-29 2000-03-14 Medtronic, Inc. Implantable defibrillator and lead system
US5999858A (en) * 1997-07-17 1999-12-07 Medtronic, Inc. Medical electrical lead
US6021354A (en) * 1997-09-02 2000-02-01 Medtronic, Inc. Single pass lead and method of use
US5922014A (en) * 1997-09-02 1999-07-13 Medtronic, Inc. Single pass lead and method of use
US6201994B1 (en) 1997-09-02 2001-03-13 Medtronic, Inc. Single pass lead and method of use
US6083150A (en) * 1999-03-12 2000-07-04 C. R. Bard, Inc. Endoscopic multiple sample biopsy forceps
US7546166B2 (en) 2001-11-29 2009-06-09 Medtronic, Inc. Medical lead designs for lead placement through tissue
US20040215307A1 (en) * 2001-11-29 2004-10-28 Koen Michels Medical lead designs for lead placement through tissue
US9067079B2 (en) 2004-11-04 2015-06-30 Washington University Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US9586055B2 (en) 2004-11-04 2017-03-07 Washington University Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US8639325B2 (en) 2004-11-04 2014-01-28 Washington University Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US20060161206A1 (en) * 2004-11-04 2006-07-20 Efimov Igor R Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US8175702B2 (en) 2004-11-04 2012-05-08 The Washington University Method for low-voltage termination of cardiac arrhythmias by effectively unpinning anatomical reentries
US8348973B2 (en) 2006-09-06 2013-01-08 Covidien Lp Bioactive substance in a barbed suture
US8679157B2 (en) 2006-09-06 2014-03-25 Covidien Lp Bioactive substance in a barbed suture
US20100198257A1 (en) * 2006-09-06 2010-08-05 Joshua Stopek Bioactive Substance in a Barbed Suture
US8391995B2 (en) 2006-11-13 2013-03-05 The Washington University Cardiac pacing using the inferior nodal extension
US20100016917A1 (en) * 2006-11-13 2010-01-21 Washington University In St. Louis Cardiac pacing using the inferior nodal extension
US8152775B2 (en) * 2007-10-17 2012-04-10 Tyco Healthcare Group Lp Access port using shape altering anchor
US20090105655A1 (en) * 2007-10-17 2009-04-23 Tyco Healthcare Group Lp Access port using shape altering anchor
US8874208B2 (en) 2007-12-11 2014-10-28 The Washington University Methods and devices for three-stage ventricular therapy
US20090204164A1 (en) * 2007-12-11 2009-08-13 Efimov Igor R Method and device for low-energy termination of atrial tachyarrhythmias
US9289620B2 (en) 2007-12-11 2016-03-22 The Washington University Method and device for three-stage atrial cardioversion therapy
US9814895B2 (en) 2007-12-11 2017-11-14 The Washington University Method and device for three-stage atrial cardioversion therapy
US9526907B2 (en) 2007-12-11 2016-12-27 Washington University Methods and devices for multi-stage ventricular therapy
US8509889B2 (en) 2007-12-11 2013-08-13 Washington University Method and device for low-energy termination of atrial tachyarrhythmias
US8560066B2 (en) 2007-12-11 2013-10-15 Washington University Method and device for three-stage atrial cardioversion therapy
US8706216B2 (en) 2007-12-11 2014-04-22 The Washington University Method and device for three-stage atrial cardioversion therapy
US9788832B2 (en) 2008-02-20 2017-10-17 Covidien Lp Compound barb medical device and method
US8454653B2 (en) 2008-02-20 2013-06-04 Covidien Lp Compound barb medical device and method
US20100211098A1 (en) * 2008-02-20 2010-08-19 Ahmad Robert Hadba Compound Barb Medical Device and Method
US8888810B2 (en) 2008-02-20 2014-11-18 Covidien Lp Compound barb medical device and method
US8932329B2 (en) 2008-02-20 2015-01-13 Covidien Lp Compound barb medical device and method
US20100211097A1 (en) * 2008-02-20 2010-08-19 Ahmad Robert Hadba Compound Barb Medical Device and Method
US20100204729A1 (en) * 2008-09-11 2010-08-12 Ahmad Robert Hadba Tapered Looped Suture
US9017379B2 (en) 2008-10-09 2015-04-28 Covidien Lp Knotted suture end effector
US9023081B2 (en) 2008-10-09 2015-05-05 Covidien Lp Knotted suture end effector
US8323316B2 (en) 2008-10-09 2012-12-04 Covidien Lp Knotted suture end effector
US20100204730A1 (en) * 2008-10-09 2010-08-12 Nicholas Maiorino Knotted Suture End Effector
US8206291B2 (en) 2009-03-27 2012-06-26 Tyco Healthcare Group Lp Portal device
US8473051B1 (en) 2010-12-29 2013-06-25 Cardialen, Inc. Low-energy atrial cardioversion therapy with controllable pulse-shaped waveforms
US9636504B2 (en) 2012-12-11 2017-05-02 Galvani, Ltd. Arrhythmia electrotheraphy device and method with provisions for mitigating patient discomfort

Also Published As

Publication number Publication date Type
GB1337670A (en) 1973-11-21 application
NL169822B (en) 1982-04-01 application
JPS558180B1 (en) 1980-03-03 grant
DE2142983A1 (en) 1972-07-20 application
NL7114035A (en) 1972-06-30 application
NL169822C (en) 1982-09-01 grant

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