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US 8,506,589 B2Granted
Nasogastric tube for use during an ablation procedure
OwnerJames D. Maloneyinventor
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Abstract
Embodiments of the present invention provide a nastogastric tube for deflecting an esophagus during an ablation procedure. According to one embodiment, the nasogastric tube includes a tube comprising at least one lumen having proximal and distal ends, and an esophageal deflector positioned within the at least one lumen and configured to deflect a portion of the tube between the proximal and distal ends. The esophageal deflector is configured to deflect the portion of the tube proximate to a retrocardiac portion of the esophagus such that the retrocardiac portion of the esophagus is deflected away from an ablation site.
Claims25
A nasogastric tube for deflecting an esophagus during an ablation procedure comprising:
- a tube comprising at least one lumen having proximal and distal ends, the tube configured to be positioned within the esophagus, to extend at least from a proximal end of the esophagus to a distal end of the esophagus, and to be anchored within the esophagus;
- and
- an esophageal deflector positioned within the at least one lumen and configured to deflect a portion of the tube between the proximal and distal ends, the esophageal deflector including a proximal portion, a distal portion, and an intermediate portion disposed between the proximal and distal portions, the proximal portion, the distal portion, and the intermediate portion extending along a longitudinal axis in an initial non-deflected state, the intermediate portion having a proximal end and a distal end each spaced away from the proximal end and the distal end of the tube, respectively, the proximal portion extending between the proximal end of the tube and the proximal end of the intermediate portion and the distal portion extending between the distal end of the tube and the distal end of the intermediate portion,
- wherein the esophageal deflector is configured to deflect the tube from the initial non-deflected state to a deflected state whereby the intermediate portion is deflected away from the longitudinal axis without deflecting the proximal and distal portions, and
- wherein the esophageal deflector comprises a pull-wire apparatus including a first pull wire extending from a proximal end of the nasogastric tube and anchored proximate the distal end of the intermediate portion, and a second pull wire extending between and anchored proximate the distal end of the intermediate portion and the proximal end of the intermediate portion, wherein the first pull wire is actuatable by the user and the second pull wire is configured to deflect the intermediate portion of the esophageal deflector in response to actuation of the first pull wire by the user to deflect the intermediate portion such that the tube deflects proximate to a retrocardiac portion of the esophagus while the distal end of the tube is anchored relative to the esophagus and such that the retrocardiac portion of the esophagus is deflected away from an ablation site.
2 more elements
A nasogastric tube for deflecting an esophagus during an ablation procedure comprising:
- a tube comprising a plurality of lumens each having proximal and distal ends;
- an inflatable balloon coupled to the tube and configured to anchor the distal end of the tube relative to the esophagus;
- an esophageal deflector positioned within one of the plurality of lumens, the esophageal deflector including a proximal portion, a distal portion, and an intermediate portion disposed between the proximal and distal portions, wherein the esophageal deflector comprises a pull-wire apparatus including a first pull wire extending from the proximal end of the tube and anchored proximate a distal end of the intermediate portion, and a second pull wire extending between and anchored proximate the distal end of the intermediate portion and a proximal end of the intermediate portion, wherein the first pull wire is actuatable by the user and the second pull wire is configured to deflect the intermediate portion of the esophageal deflector in response to actuation of the first pull wire by the user to deflect the intermediate portion of the tube between the proximal and distal ends, wherein the esophageal deflector is configured to deflect the tube from an initial non-deflected state to a deflected state whereby the intermediate portion is deflected without deflecting the proximal and distal ends of the tube;
- and
- at least one instrument positioned within one of the plurality of lumens and configured to monitor the position of the esophagus during an ablation procedure, monitor one or more physical properties of the esophagus during an ablation procedure, and/or assist in positioning the tube within the esophagus.
2 more elements
Dependencies are inferred from the claim text.