Surgical access port
AssigneeApplied Medical Resources Corporation
InventorsKimball B. McGinley, Henry Kahle, Scott V. Taylor, Gary M. Johnson
Life of this patent
Estimating the term…
Abstract
A surgical access port or trocar is provided. The trocar has a trocar seal housing and a trocar cannula with an optical obturator insertable through the trocar seal housing and the trocar cannula. The trocar is configured to access a body cavity, to maintain positive pressure and to prevent loss of surgical insufflation gas used in laparoscopic procedures. The trocar seal housing can be releasably attached to the trocar cannula. The trocar seal housing may also have a shield and/or alignment channel that provide protection or assist in operation of instrument and zero seals housed in the trocar seal housing.
Claims6
A surgical access port comprising:
- a trocar seal housing having an outer surface and comprising at least one seal within the trocar seal housing;
- a trocar cannula having a lumen, the at least one seal arranged to seal the lumen;
- and
- a trocar lock ring releasably connecting the trocar cannula to the seal housing, the trocar lock ring being disposed around the outer surface of the trocar seal housing such that the trocar seal housing is positioned between the trocar lock ring and the trocar cannula, and the trocar lock ring being selectively positionable between a lock position and an unlock position,
- wherein the trocar seal housing comprises a slot formed therein, the trocar cannula comprises a groove formed therein, and the trocar lock ring comprises at least one tab extending therefrom, the at least one tab positioned through the slot of the trocar seal housing and into the groove of the trocar cannula with the trocar lock ring in the lock position,
- wherein the trocar lock ring comprises a substantially cylindrical member comprising an inner surface disposed around the outer surface of the trocar seal housing and the at least one tab extends radially inwardly from the inner surface, wherein the trocar lock ring comprises an outer surface opposite the inner surface and two external grip tabs positioned on opposing sides of the outer surface such that squeezing the grip tabs deforms the trocar lock ring into a generally oval shape, and
- wherein the trocar seal housing further comprises a ledge protruding therefrom, the ledge positioned to overlie at least one of the two external grip tabs.
Dependencies are inferred from the claim text.