Charles G Supino

US Patent:

RE38777, Aug 16, 2005

Filed:

Dec 13, 1996

Appl. No.:

08/766634

Inventors:

Theodore P. Adams - Edina MN, US
Dennis A. Brumwell - Bloomington MN, US
Joseph S. Perttu - Chanhassen MN, US
Charles G. Supino - Arden Hills MN, US

Assignee:

Angeion Corp. - Minneapolis MN

International Classification:

A61N001/39

US Classification:

607 5, 607 34, 607 29

Abstract:

An improved dual battery power system uses two separate battery power sources for an implantable cardioverter defibrillator, each having optimized characteristics for monitoring functions and for output energy delivery functions, respectively. The monitoring functions are supplied electrical power by a first battery source, such as a conventional pacemaker power source in the form of a lithium iodide battery which is optimized for long life at very low current levels. The output energy delivery functions are supplied by a separate second battery source, such as a pair of lithium vanadium pentoxide batteries, which is optimized for high current drain capability and low self-discharge for long shelf life. The first battery source provides electrical power only to the monitoring functions of the implantable cardioverter defibrillator, and the second battery source provides all of the electrical power for the output energy delivery functions.

US Patent:

53062914, Apr 26, 1994

Filed:

Feb 26, 1992

Appl. No.:

7/841544

Inventors:

Mark W. Kroll - Minnetonka MN
Theodore P. Adams - Edina MN
Charles G. Supino - Arden Hills MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 136

US Classification:

607 5

Abstract:

Epicardial-patch electrodes for defibrillation are efficient in deliverying electrical energy accurately to the necessary tissue and in minimizing electrical losses, but they are risky and costly because their implantation requires major surgery. Intravenous implantation of endocardial-coil electrodes, such as right-ventricular-apex (RVA) and superior-vena-cava (SVC) electrodes, by means of cardiac catheters, on the other hand, involves simpler procedures. Also, implantation of a subcutaneous-patch (SUB) electrode or of a pulse-generator housing (CAN, subject to co-pending application) electrode requires comparatively minor surgery. Using these last four electrodes, however, involves accepting electrical losses in intervening tissue, relatively inefficient current directions in some cases, and unfavorable energy distributions among paralleled paths. The present invention achieves more favorable energy and current distribution by introducing lossy elements in one or more paths, or by capacitor-switching methods, where RVA is given one polarity, and at least two of the other electrodes are given opposite polarity, yielding at least two pathways. The present invention also achieves current and energy steering by means of differing pulse durations in different paths.

US Patent:

55317820, Jul 2, 1996

Filed:

May 9, 1994

Appl. No.:

8/239778

Inventors:

Mark W. Kroll - Minnetonka MN
Theodore P. Adams - Edina MN
Joseph S. Perttu - Chanhassen MN
Charles Supino - Arden Hills MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 105

US Classification:

607122

Abstract:

A defibrillation electrode apparatus which provides defibrillating, pacing, and sensing functions with the use of fewer conductors. Conductor requirements are minimized by solid-state multiplexing that is accomplished at the distal end of the apparatus. The apparatus comprises: a. a body structure; b. a number "X", wherein X is at least 3, of electrode members disposed on the body structure for electrical communication with the exterior environment; c. a number "X-Y", wherein Y is a number between 1 and X-2, of conductive lead members, each lead member being communicatively connected to at least one electrode member and extending therefrom to a predetermined point on the body structure, and wherein each electrode member is connected to one lead member and at least one lead member is connected to more than one electrode member; and d. a rectifier connected between at least one lead member and at least one electrode member.

US Patent:

54115264, May 2, 1995

Filed:

Mar 24, 1992

Appl. No.:

7/856733

Inventors:

Mark W. Kroll - Minnetonka MN
Charles G. Supino - Arden Hills MN
Theodore P. Adams - Edina MN
Dennis A. Brumwell - Bloomington MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 100

US Classification:

607 5

Abstract:

The first embodiment of the present invention repositions the shunt thyristor used in the monophasic-waveform generator of the prior art so that it discharges the main capacitor through a series thyristor, thus increasing current through it briefly, rather than reducing current through it. The result of this arrangement is that the node between the series thyristor and the heart is pulled rapidly to a low voltage, causing the shunt switch to discharge the cardiac capacitance, as well as the main capacitance. The consequence is that discharging the cardiac capacitance requires a reversal of current in the heart, which enhances the heart-stimulating effect of the defibrillating waveform. The resulting true-voltage-pulse waveform has an efficacy approximating that of a biphasic waveform and is achieved with a circuit no more complex than that used to generate a monophasic waveform. A second and alternative embodiment of the present invention is a defibrillation system comprising a switching-bridge circuit, augmented by a zener diode and a rectifier diode, that is capable of delivering on demand any one of the waveforms known as monophasic, biphasic, and true-voltage-pulse waveforms.

US Patent:

53258703, Jul 5, 1994

Filed:

Dec 16, 1992

Appl. No.:

7/991132

Inventors:

Mark W. Kroll - Minnetonka MN
Theodore P. Adams - Edina MN
Joseph S. Perttu - Chanhassen MN
Charles Supino - Arden Hills MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 104

US Classification:

607122

Abstract:

A defibrillation electrode apparatus which provides defibrillating, pacing, and sensing functions with the use of fewer conductors. Conductor requirements are minimized by solid-state multiplexing that is accomplished at the distal end of the apparatus.

US Patent:

53124430, May 17, 1994

Filed:

Feb 20, 1992

Appl. No.:

7/837952

Inventors:

Theodore P. Adams - Edina MN
Mark W. Kroll - Minnetonka MN
Charles G. Supino - Arden Hills MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61B 504

US Classification:

607 5

Abstract:

A major shortcoming in the prior art for detecting cardiac arrhythmias for the purpose of making an electrical intervention decision has been that each variable sensed was given in effect a "veto" over intervention on the basis of its own particular predetermined threshold value, and irrespective of the values of companion variables. The present invention overcomes this prior art problem by generating a function of relevant variables, and assigning a threshold value to the function. As a result, an individual variable can range widely for a positive intervention decision, depending upon the values of the companion variables. Thus, the intervention exploits features often described as those associated with fuzzy logic. The functions chosen for this purpose can be as one desires, with the choice depending upon the current state of advancing knowledge. Even further flexibility can be achieved by employing the principles of the neural net, wherein functional values can themselves be combined, with another threshold value assigned to the result of that combination, and so on.

US Patent:

53726057, Dec 13, 1994

Filed:

Aug 16, 1993

Appl. No.:

8/108130

Inventors:

Theodore P. Adams - Edina MN
Dennis A. Brumwell - Bloomington MN
Joseph S. Perttu - Chanhassen MN
Charles G. Supino - Arden Hills MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 139

US Classification:

607 5

Abstract:

An improved dual battery power system uses two separate battery power sources for an implantable cardioverter defibrillator, each having optimized characteristics for monitoring functions and for output energy delivery functions, respectively. The monitoring functions are supplied electrical power by a first battery source, such as a conventional pacemaker power source in the form of a lithium iodide battery which is optimized for long life at very low current levels. The output energy delivery functions are supplied by a separate second battery source, such as a pair of lithium vanadium pentoxide batteries, which is optimized for high current drain capability and low self-discharge for long shelf life. The first battery source provides electrical power only to the monitoring functions of the implantable cardioverter defibrillator, and the second battery source provides all of the electrical power for the output energy delivery functions.

US Patent:

53761030, Dec 27, 1994

Filed:

Mar 19, 1992

Appl. No.:

7/854862

Inventors:

Kenneth M. Anderson - Bloomington MN
Theodore P. Adams - Edina MN
Charles G. Supino - Arden Hills MN
Mark W. Kroll - Minnetonka MN

Assignee:

Angeion Corporation - Plymouth MN

International Classification:

A61N 139

US Classification:

607 5

Abstract:

A defibrillator pulse generator for pectoral implant utilizing the metal case as an electrode and operative to supply unique patterns of monophasic, biphasic, or pairs of electrical pulses to the connected electrodes.