Cannula Adapters
AssigneeLexon Medical LLC
InventorsDouglas E. Ott, Nathanial Tran
Life of this patent
Estimating the term…
Abstract
A cannula adapter for converting a trocar insufflator into a two-phase or two-mode insufflation system. In the needle insufflation mode the insufflation gas flows through a trocar cannula, a cannula adapter and an insufflation needle before entering a body cavity and in the trocar insufflation mode gas flows directly into the body cavity from the trocar cannula. The cannula adapter although sealingly attachable to the trocar cannula during the needle insufflation mode is removable therefrom for a seamless transfer between the needle insufflation mode and the trocar insufflation mode.
Claims20
A cannula adapter comprising:
- a tube having a chamber therein for receiving a cannula;
- a resilient cannula sealing member proximate a first end of the tube;
- an end cap on a second end of the tube, said end cap having a gas passage therein;
- and
- a cannula alignment member extending into the chamber.
A method of body cavity insufflation comprising;
- frictionally and sealingly attaching a first end of a tube having a sealing member onto an exterior surface of a cannula;
- attaching one end a flexible tubing having an insufflation needle on the opposite end to the flexible tubing;
- and
- directing an insufflating gas through the cannula, the insufflation needle and into a body cavity.
The method of claim 11 including removing the tube from the cannula after an initial insufflation with the insufflation needle.
A cannula adapter for converting a needle insufflation system to a trocar insufflation system comprising;
- a tube having a first end for frictionally and sealing engaging an exterior surface of a trocar cannula;
- an insufflation needle secured to an opposite end of the tube for delivery of insufflation gas to a body cavity through both a trocar cannula and an insufflation needle.
Dependencies are inferred from the claim text.