Multiluminal endoscopic portal
First Claim
1. An endoscopic portal comprisinga tubular sleeve for insertion through an anatomical cavity wall to provide access within the anatomical cavity for medical instruments, said sleeve having an open distal end adapted to be disposed within the anatomical cavity and an open proximal end adapted to be disposed externally of the anatomical cavity;
- a housing mounting said open proximal end of said sleeve; and
valve means disposed at said open proximal end of said sleeve for controlling passage of fluids through said sleeve, said valve means including a substantially spherical valve body rotatably mounted in said housing and defining a plurality of lumens of varying size, said lumens being individually alignable with said open proximal end of said sleeve to engage medical instruments therethrough in sealing relation.
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Accused Products
Abstract
An endoscopic portal includes a tubular sleeve or cannula having an open distal end for positioning within an anatomical cavity, an open proximal end for positioning externally of the anatomical cavity, and a valve assembly disposed at the open proximal end of the sleeve for controlling fluid passing therethrough. The valve assembly includes a spherical valve body defining a plurality of different size lumens or passages that can be selectively aligned with the open proximal end of the sleeve. The valve body is rotatably carried in a valve housing mounting the proximal end of the sleeve and is preferably biased toward a position closing a passage formed through the valve housing.
93 Citations
14 Claims
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1. An endoscopic portal comprising
a tubular sleeve for insertion through an anatomical cavity wall to provide access within the anatomical cavity for medical instruments, said sleeve having an open distal end adapted to be disposed within the anatomical cavity and an open proximal end adapted to be disposed externally of the anatomical cavity; -
a housing mounting said open proximal end of said sleeve; and valve means disposed at said open proximal end of said sleeve for controlling passage of fluids through said sleeve, said valve means including a substantially spherical valve body rotatably mounted in said housing and defining a plurality of lumens of varying size, said lumens being individually alignable with said open proximal end of said sleeve to engage medical instruments therethrough in sealing relation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of forming a portal in the wall of an anatomical cavity comprising the steps of
rotating a spherical valve body within a valve housing to selectively align one of a plurality of lumens formed in said valve body with an open proximal end of a portal sleeve mounting said valve housing; -
inserting a penetrating member through said lumen and portal sleeve; penetrating the anatomical cavity wall with said penetrating member and said portal sleeve; and withdrawing said penetrating member from said sleeve. - View Dependent Claims (11, 12, 13, 14)
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Specification