Tissue punching instrument
AssigneeIDX Medical, Ltd.
InventorsWarren P. Williamson, IV, Craig B. Berky, Paul A. Spence, Mark Ortiz
Life of this patent
Estimating the term…
Abstract
A surgical punch prevents tissue debris associated with punching a hole in a patient's tissue, such as an aorta during an anastomosis procedure, from reentering the patient's bloodstream. The punch includes elements that move the debris away from the cutting site and then capture that debris inside the instrument. The punch also includes means for aligning the punch with the selected site and for atraumatically holding the tissue prior to cutting. Various means for moving the tissue debris and for trapping the tissue debris in the instrument are also disclosed.
Claims34
A tissue punching instrument comprising:
- a housing;
- a plunger body in said housing and movable with respect to said housing between a first position and a second position;
- a tissue cutting element on said plunger body for movement therewith;
- a tissue punching element fixed to said housing for shearing tissue trapped between said punching element and said tissue cutting element when said plunger body is moved between said first position and said second position;
- tissue debris moving means connected to said plunger body for moving tissue debris associated with cutting tissue by said tissue cutting element and said tissue punching element away from a cutting location and into said plunger body;
- and
- means in said plunger body for trapping the tissue debris and holding the tissue debris spaced from the cutting location.
A tissue punching instrument comprising:
- a housing;
- a plunger body movably mounted on said housing and movable with respect to said housing between a first position and a second position;
- a tissue cutting element on said plunger body and which moves therewith;
- a tissue punching element fixed to said housing which shears tissue trapped between said punching element and said tissue cutting element when said plunger body with said cutting element thereon is moved with respect to said housing with said punching element fixed thereto between said first position and said second position;
- a tissue debris mover connected to said plunger body and which has a portion thereof which extends into a location to encounter tissue debris associated with cutting tissue by said tissue cutting element and said tissue punching element, said tissue debris mover being moved by the motion of the plunger body relative to said housing and which movement moves tissue debris encountered by the portion of said tissue debris mover away from a site at which said tissue is cut and into said plunger body;
- and
- a trap in said plunger body which is spaced from said location and is in position to receive tissue debris moved away from said location by said tissue debris mover and has an element thereon which traps the tissue debris and holds the tissue debris spaced from the site at which said tissue is cut.
Dependencies are inferred from the claim text.