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US 2018/0021517 A1Published application
Cannulas having wall strengthening features, and related systems and methods
AssigneeIntuitive Surgical Operations, Inc.
InventorsDouglas S. LANGLEY, Justin KROM, Robert C. REID
Life of this patent
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Abstract
A cannula may include a bowl portion comprising a first opening and a second opening, and an insertion tube extending from the bowl portion. The insertion tube defines a passage extending from the second opening and terminating in a distal end opening. The passage is configured to receive an instrument to be advanced through the cannula. The insertion tube has a transparent portion extending proximally from the distal end opening, and a strengthened portion extending proximally from the transparent portion.
Claims20
A cannula comprising:
- a bowl portion having a proximal first opening and a distal second opening, the first opening being larger than the second opening;
- and
- an insertion tube extending distally from the bowl portion and comprising a proximal strengthened portion, a distal transparent portion, and a passage extending from the second opening of the bowl portion through the strengthened portion and the transparent portion and terminating in a distal end opening.
Dependencies are inferred from the claim text.