Optical trocar
First Claim
1. A trocar which comprises:
- A cannula An obturator configured for insertion into said cannula, said obturator having a proximal end, a distal end and a longitudinal bore;
A member positioned at said distal end of said obturator for allowing optical images to pass into said longitudinal bore; and
Means for penetrating body tissue positioned at said distal end of said obturator, said penetrating means being movable between non-deployed and deployed positions.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to an optical obturator which includes a sleeve having a longitudinal bore between a proximal end and a distal end. The longitudinal bore of the sleeve is configured to receive at least a portion of an endoscope or like image transferring system. An image passing member, such as an optical window is positioned at the distal end of the sleeve and is provided to permit optical images to pass into the longitudinal bore of the sleeve and to permit illumination light to pass to the surgical site. An automatically retracting blade is positioned distal to the image passing member to facilitate penetration of body tissue.
34 Citations
22 Claims
-
1. A trocar which comprises:
-
A cannula An obturator configured for insertion into said cannula, said obturator having a proximal end, a distal end and a longitudinal bore;
A member positioned at said distal end of said obturator for allowing optical images to pass into said longitudinal bore; and
Means for penetrating body tissue positioned at said distal end of said obturator, said penetrating means being movable between non-deployed and deployed positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. Apparatus for observation of body tissue during penetration which comprises:
-
a cannula assembly having a cannula housing and a cannula sleeve extending from said cannula housing, said cannula sleeve having a longitudinal bore extending from a proximal end to a distal end;
An obturator assembly having an obturator housing and an obturator sleeve, said obturator sleeve being configured for coaxial alignment with said cannula sleeve, a distal end of said obturator sleeve having an image passing member positioned thereon, and having means for penetrating body tissue positioned distal to said image passing member; and
Said obturator sleeve having means to receive an optical imaging member for transmitting images to a proximal end of said obturator housing for viewing. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
-
Specification