The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2004
Filed:
Nov. 22, 2000
Sameh Mesallum, Boston, MA (US);
Microaccess Medical Systems, Inc., Boston, MA (US);
Abstract
A minimally invasive approach implementing the concept of transesophageal access to the heart and surrounding structures is described which allows intra and extra cardiac procedures to be performed while the heart is beating. The technique creates a short, wide and almost straight tubular access to the posterior mediastinum, pericardial space and interior of the heart through a penetration in a segment in the GI tract preferably the esophagus in proximity to a cardiac chamber. The access device isolates the penetration site from the rest of the esophageal lumen and secures the penetration site in the esophageal wall. Other means are used to secure the penetration field in the esophageal wall and prevent micro leakage, including circumferential pressure isolation of the esophageal segment, continuous intra esophageal suction and irrigation, and vacuum negative pressure throughout the procedure. The invention allows for combining transesophageal, epicardial and intracardiac ultrasound images to create stereoscopic high-resolution image for monitoring and controlling the procedure(s).