INTRODUCTORY ASSEMBLY AND METHOD FOR INSERTING INTRACARDIAC INSTRUMENTS
First Claim
1. An introduction assembly for the insertion of medical instruments through a thoracic passage and into a targeted atrium of the heart, said introduction assembly comprising:
- a puncturing instrument dimensioned and structured to form an entry site into the targeted atrium and corresponding pericardial bag,an elongated sheath including a central lumen movably disposed over said puncturing instrument through the entry site,said sheath including a distal end having a predetermined intracardiac length,a buffer disposed on said sheath between said distal end and a remainder of said sheath,said buffer structured to limit insertion of said distal end into the targeted atrium through the entry site,a restriction assembly connected to said distal end and movable therewith into and out of the targeted atrium through said entry site,said restricting assembly disposable into a restricting orientation within the targeted atrium;
said restricting orientation dimensioned and configured to restrict removal of said distal end from the targeted atrium, andsaid sheath and central lumen dimensioned and configured to receive and facilitate passage therethrough of instrumentation dedicated to perform cardiac maneuvers within said targeted atrium.
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Accused Products
Abstract
An introduction assembly and method for the insertion of medical instruments through a thoracic passage into a selected one of either the left or right atrium of the heart. Catheters or other instruments dedicated to performing required cardiac maneuvers are passed through an introductory sheath having a distal end disposed within the targeted atrium. Upon completion of the required cardiac maneuvers the instruments are removed from the atrium and a closure assembly is passed through the introductory sheath into a closing relation to an entry site, formed in the pericardium and corresponding atrium wall, to facilitate healing thereof. The introductory assembly and method facilitates the concurrent, operative disposition of a plurality of catheters or other instruments into the interior of the selected atrium through different thoracic passages and entry sites thereby allowing synergistic interaction between the multiple catheters in the performance of the required cardiac maneuvers.
15 Citations
22 Claims
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1. An introduction assembly for the insertion of medical instruments through a thoracic passage and into a targeted atrium of the heart, said introduction assembly comprising:
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a puncturing instrument dimensioned and structured to form an entry site into the targeted atrium and corresponding pericardial bag, an elongated sheath including a central lumen movably disposed over said puncturing instrument through the entry site, said sheath including a distal end having a predetermined intracardiac length, a buffer disposed on said sheath between said distal end and a remainder of said sheath, said buffer structured to limit insertion of said distal end into the targeted atrium through the entry site, a restriction assembly connected to said distal end and movable therewith into and out of the targeted atrium through said entry site, said restricting assembly disposable into a restricting orientation within the targeted atrium;
said restricting orientation dimensioned and configured to restrict removal of said distal end from the targeted atrium, andsaid sheath and central lumen dimensioned and configured to receive and facilitate passage therethrough of instrumentation dedicated to perform cardiac maneuvers within said targeted atrium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification