Endocardial mapping apparatus and cylindrical semiconductor device mounting structure for use therewith and method
First Claim
1. Apparatus for mapping a wall of a chamber of a heart comprising a flexible elongate tubular member having proximal and distal extremities and being provided with at least one lumen extending therethrough, a plurality of longitudinally and radially spaced-apart electrodes, expandable means carried by the distal extremity of the flexible elongate tubular member and being movable between a contracted position and an expanded position, means mounting the electrodes on the expandable means whereby when the expandable means is moved to the expanded position in the chamber of the heart the electrodes are moved into engagement with the wall forming the chamber of the heart, lead means for conducting electrical energy in contact with the electrodes and extending into the flexible elongate tubular member and electrical means connected to the lead means for performing electrical functions with respect to the electrodes, the electrical means including at least one semiconductor device carried by the distal extremity of the flexible elongate tubular member in close proximity to the expandable means.
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0 Petitions
Accused Products
Abstract
An apparatus for mapping the wall of a chamber of the heart. The apparatus includes a flexible elongate tubular member having proximal and distal extremities and at least one lumen extending therethrough. A plurality of longitudinally and radially spaced-apart electrodes are provided. An expandable device is carried by the distal extremity of the flexible elongate tubular member and is movable between a contracted position and an expanded position. The electrodes are mounted on the expandable device so that when the expandable device is moved to its expanded position in the chamber of the heart the electrodes are moved into engagement with the wall forming the chamber of the heart. Leads for conducting electrical energy are in contact with the electrodes and extend into the flexible elongate tubular member. An electrical apparatus is connected to the leads for performing electrical functions with respect to the electrodes and includes at least one semiconductor device carried by the distal extremity of the flexible elongate tubular member in close proximity to the expandable device.
220 Citations
15 Claims
- 1. Apparatus for mapping a wall of a chamber of a heart comprising a flexible elongate tubular member having proximal and distal extremities and being provided with at least one lumen extending therethrough, a plurality of longitudinally and radially spaced-apart electrodes, expandable means carried by the distal extremity of the flexible elongate tubular member and being movable between a contracted position and an expanded position, means mounting the electrodes on the expandable means whereby when the expandable means is moved to the expanded position in the chamber of the heart the electrodes are moved into engagement with the wall forming the chamber of the heart, lead means for conducting electrical energy in contact with the electrodes and extending into the flexible elongate tubular member and electrical means connected to the lead means for performing electrical functions with respect to the electrodes, the electrical means including at least one semiconductor device carried by the distal extremity of the flexible elongate tubular member in close proximity to the expandable means.
- 7. Apparatus for mapping a wall of a chamber of a heart comprising a flexible elongate tubular member having proximal and distal extremities and at least one lumen extending therethrough, a basket assembly carried by the distal extremity of the flexible elongate tubular member and being movable between contracted and expanded positions, the basket assembly having a plurality of elongate flexible circumferentially spaced-apart arms with proximal and distal extremities and a plurality of longitudinally spaced-apart first and second electrodes carried by each arm for engaging the wall of the heart, first and second lead means connected to respective first and second electrodes of each arm for conducting electrical energy in contact with the electrodes to the proximal extremities of the arms, a longitudinally-extending hollow flexible member carried by the distal extremity of the flexible elongate tubular member, at least one semiconductor device mounted on the hollow flexible member, the hollow flexible member having a plurality of longitudinally spaced-apart first and second interconnect pads electrically connected to the semiconductor device, and means for electrically connecting the first lead means to the first interconnect pads and for electrically connecting the second lead means to the second interconnect pads.
- 13. A cylindrical mounting structure for use with a medical apparatus having a flexible elongate tubular member with a distal extremity for insertion into a vessel in a body and a probe device having first and second lead means for conducting electrical energy, the cylindrical mounting structure comprising a mandrel having a segmented outer surface with at least one cavity opening through the segmented outer surface, means for coupling the mandrel to the distal extremity of the flexible elongate tubular member and to the probe device carried by the mandrel and adapted to couple the mandrel to the distal extremity of the flexible elongate tubular member and to the probe device, a flex circuit wrapped about the segmented outer surface of the mandrel and having an inner surface provided with contact pads thereon, at least one semiconductor device mounted on the inner surface of the flex circuit and disposed in the cavity, the semiconductor device having contact terminals in electrical contact with the contact pads on the flex circuit, the flex circuit having longitudinally spaced-apart first and second interconnect pads adapted for electrical connection to the respective first and second lead means and conductor means for electrically connecting the first and second interconnect pads to the contact pads.
Specification