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 in segregating relation 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 closure assembly disposable in an operative position in closing relation to the entry site in the targeted atrium subsequent to removal of said sheath therefrom, andsaid sheath and central lumen dimensioned and configured to receive and facilitate passage therethrough of instrumentation dedicated to perform predetermined cardiac maneuvers.
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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.
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Citations
29 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 in segregating relation 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 closure assembly disposable in an operative position in closing relation to the entry site in the targeted atrium subsequent to removal of said sheath therefrom, and said sheath and central lumen dimensioned and configured to receive and facilitate passage therethrough of instrumentation dedicated to perform predetermined cardiac maneuvers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of introducing medical instrumentation through a thoracic passage and into a targeted atrium of the heart, the method comprising:
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forming at least one entry site into the target atrium, positioning a distal end of an introductory sheath through the thoracic passage and the entry site and structuring the distal end to include a predetermined intracardiac length, passing instrumentation dedicated to perform predetermined cardiac maneuvers along an interior of the introductory sheath and into the targeted atrium through the entry site, removing the dedicated instrumentation from the targeted atrium through the introductory sheath subsequently to performing the cardiac maneuvers, positioning a closure assembly through the introductory sheath and into closing relation to the entry site, and removing the introductory sheath from the thoracic passage. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification