ELECTRIC POTENTIAL MAPPING AND ELECTRODE ATTACHMENT DEVICE WITH CONTINUOUS ELECTRIC SIGNAL MONITORING AND METHOD

• US 20120016227A1
• Filed: 07/18/2010
• Published: 01/19/2012
• Est. Priority Date: 07/18/2010
• Status: Active Grant

• Current Assignee: Pramod M. Deshmukh
• Original Assignee: Pramod M. Deshmukh
• Inventors: Deshmukh, Pramod M.
• Granted Patent: US 8,320,987 B2
• Time in Patent Office: Days
• US Class Current: 600/424
• CPC Class Codes: A61B 5/283 Invasive

Abstract

Electric potential mapping and electrode attachment device comprises: a main cylinder; a center piece having a center piece passage for receiving a catheter with its electrode running from a center piece net to a center piece outlet; a cylinder cap for closing main cylinder; a second cylinder which fits inside of and is allowed to rotate relative to main cylinder; and at least two electromechanical connections used to connect the device to at least two connectors on an electrode lead, where the device facilitates rotation and movement of each connector relative to the other while retaining continuous electrical connection with heart tissue or other body cavity tissue. A laparoscopic device is attached to electric potential mapping and electrode attachment device. Electric potential mapping and electrode attachment device is capable of continuously recording electrical potentials of a heart cavity or other body cavity during full rotation of collars, connectors, or connections on the laparoscopic device and is capable continuously recording electrical signals during HIS bundle mapping, pacemaker electrode anchoring, post anchoring, pacemaker programming, and afterwards. The invention provides a means for retaining continuous electrical signal connections with the electrode from mapping, electrode attachment, to pacemaker control unit programming, without interruption of the electrical signals.

Claims

1. A electric potential mapping and electrode attachment device comprising:

an outer cylinder;

an inner cylinder;

a first electrical connection located on the outer surface of said outer cylinder;

a second electrical connection located on the outer surface of said outer cylinder;

a inner cylinder-to-electrode lead mechanical connection means;

a inner cylinder-to-electrode lead resilient electrical connection; and

a outer cylinder-to-electrode lead electromechanical connection means;

wherein,

said outer and inner cylinders are mounted concentrically to each other on a common longitudinal center axis with said inner cylinder fitting completely inside of said outer cylinder so that each cylinder may be rotated relative to the other and said common longitudinal axis is void or hollow and sized to accept by threading there through a certain laparoscopic device,

said outer cylinder has at least one void or hole through which said inner cylinder may be rotated by thumb or finger relative to said outer cylinder;

said inner cylinder-to-electrode lead mechanical connection means provides a reversible rigid mechanical connection between said inner cylinder and a first contact on the electrode lead so that rotation of said inner cylinder causes rotation of the first contact on electrode lead,

said inner cylinder-to-electrode lead resilient electrical connection electrically connects said first electrical connection to the first contact on electrode lead wherein said inner cylinder-to-electrode lead mechanical connection means maintains electrical connectivity with the first contact on electrode lead when mechanically connected to such, said resilient electrical connection means electrically connects said inner cylinder-to-electrode lead mechanical connection means to said first electrical connection and maintains such electrical connection during repeated and complete rotation of said inner cylinder-to-electrode lead mechanical connection means, where said resilient electrical connection is a resilient, flexible, or plastic connection that remains electrically conductive to maintain electrical and physical contact between said first electrical connection and said inner cylinder-to-electrode lead mechanical connection means, and

said outer cylinder-to-electrode lead electromechanical connection means mechanically and rigidly connects said outer cylinder to a second contact on the electrode lead and also electrically connects said second electrical connection to the second contact on electrode lead.

2. A electric potential mapping and electrode attachment device as recited in claim 1, wherein said inner cylinder-to-electrode lead mechanical connection means further comprises:

a collet or chuck member;

a collet striker member; and

a spring, wherein,

said collet or chuck member has at least two finger members on its distal end, where said at least two fingers exert a strong clamping force on the first contact on the electrode lead when it is tightened via said collet striker and said spring,

said collet striker is a specifically sized and shaped bushing to mate with said collet or chuck member with a distally facing taper on its interior diameter that acts to force said at least two fingers closed, and

said strong clamping force is provided by said spring, which forces said at least two fingers into said taper, thereby closing said fingers around the first contact on the electrode.

3. A electric potential mapping and electrode attachment device as recited in claim 1, wherein said collet or chuck member further comprises a nut area in rigid connection with said at least two finger members where said collet or chuck member is oblong shaped with said at least two fingers at one end and said nut area at the other or at a mid-point and said nut area engages a counterpart structure, wrench structure, or inverse structure on the inner surface of said inner cylinder where said nut area fits within said counterpart structure, wrench structure, or inverse structure so that said inner cylinder acts as a wrench to rotate said nut area with rotation of said inner cylinder, thereby rotating said at least two fingers, thereby rotating the first contact on the electrode.

4. A electric potential mapping and electrode attachment device as recited in claim 1, wherein said inner cylinder-to-electrode lead resilient electrical connection further comprises:

an electrically conductive sphere;

an electrically conductive hollow metal cylinder with one open end and one closed end; and

an electrically conductive spring, wherein,

said electrically conductive hollow metal cylinder extends partially through said outer cylinder with said closed end on the exterior and said open end on the interior of said outer cylinder,

said electrically conductive spring is placed inside said electrically conductive hollow metal cylinder at the closed end and said electrically conductive sphere is placed inside said electrically conductive hollow metal cylinder at the open end so that said electrically conductive spring forces said electrically conductive sphere against said open end of said electrically conductive hollow metal cylinder where said electrically conductive sphere is retained within said electrically conductive hollow metal cylinder because said open end has a smaller diameter than that of said electrically conductive sphere ball, and

said electrically conductive sphere rides along the outer surface of said collet or chuck member and maintains electrical conductivity with such despite imperfections in outer circumference of said collet or chuck member, alignment of members, or wear of members.

5. A electric potential mapping and electrode attachment device as recited in claim 1, wherein said outer cylinder-to-electrode lead electromechanical connection means comprises an oblong shaped electrically conductive member with male threads on one end that mate with a tapped hole in said outer cylinder where said oblong shaped electrically conductive member may be mechanically tightened or screwed down onto the second contact on the electrode lead to provide a rigid connection between said outer cylinder and the second contact on the electrode that is also electronically conductive connection between these members.

6. A method of using said electric potential mapping and electrode attachment device, comprising:

a) obtaining said electric potential mapping and electrode attachment device;

b) obtaining an electrode stylet set with an electrode member and a stylet member wherein said electrode member includes an electrode attached to a hollow wire lead and said stylet member is appropriately sized and shaped to laparoscopically navigate said electrode to, from, and within a targeted body cavity of a human or animal;

c) threading or inserting the distal end of said stylet member through said hollow longitudinal axis of said cylinder members;

d) threading or inserting the distal end of said stylet member through said hollow wire lead until said the distal end of stylet is seated onto the proximal end of said electrode;

e) connecting and seating said electric potential mapping and electrode attachment device to said hollow wire lead;

f) laparoscopically inserting said electrode to a certain position inside said targeted body cavity;

g) recording an electric potential reading at said certain position taken from said electrode;

h) laparoscopically moving said electrode to another certain position inside said targeted body cavity; and

i) recording another electric potential reading at said another certain position taken from said electrode.

7. A method of using said electric potential mapping and electrode attachment device as recited in claim 6, further comprising the repeating of steps h through i as required in order to retrieve enough electric potential readings in order to render a sufficiently detailed electrical potential topography of the targeted body cavity.

8. A method of using said electric potential mapping and electrode attachment device as recited in claim 7, further comprising:

determining an optimal placement position of said electrode within the targeted body cavity based on said detailed electrical potential topography of the targeted body cavity;

laparoscopically moving said electrode to said optimal placement position;

rotating said electrode in order to attach by screwing means said electrode to said optimal placement position; and

continuously monitoring electric potential readings during said rotating.

9. A method of using said electric potential mapping and electrode attachment device as recited in claim 8, further comprising:

reverse rotating said electrode in order to remove by unscrewing means said electrode;

laparoscopically moving said electrode even closer to said optimal placement position;

rotating said electrode in order to re-attach by screwing means said electrode to said optimal placement position; and

continuously monitoring electric potential readings during said reverse rotating and said rotating.

10. A method of using said electric potential mapping and electrode attachment device as recited in claim 6, 7, 8, or 9, further comprising:

electrically connecting a programming device or a control unit device to said first and second electrical connections; and

continuously monitoring electric potential readings before, during, and after said connection.