Hand-held instrument with dual zone fluid removal
AssigneeMegadyne Medical Products, Inc.
InventorsDarcy W. Greep, Chad S. Frampton
Life of this patent
Estimating the term…
Abstract
An electrosurgical instrument has dual zone smoke evacuation for providing efficient capture and evacuation of smoke generated during an electrosurgical procedure. A hand piece with a proximal and a distal end is coupled to a front piece having a distal opening leading into an interior conduit. An extendable section is at least partially disposed within the interior conduit and extends distally out of the distal opening of the front piece. The extendable section is selectively translatable within the interior conduit. A negative pressure source enables the capture and evacuation of smoke through both the extendable section and the interior conduit.
Claims31
A hand-held instrument, comprising:
- a hand piece having a proximal end and a distal end;
- a front piece coupled to or integrated with the hand piece, the front piece having a distal opening leading into an interior conduit of the hand piece;
- an extendable section at least partially disposed within the interior conduit and extending distally out of the distal opening of the front piece, the extendable section having a distally facing opening leading into an extendable section conduit;
- and
- a negative pressure source in communication with the interior conduit and the extendable section conduit, the negative pressure source enabling the extendable section to function as a first fluid evacuation component and enabling the front piece and the interior conduit to function as a second fluid evacuation component.
A hand-held instrument, comprising:
- a hand piece having a proximal end and a distal end;
- a first fluid evacuation component configured to be selectively translatable relative to the hand piece, the first fluid evacuation component including a first conduit extending distally from the hand piece and extending at least partially into the interior of the hand piece to direct captured fluid into the hand piece;
- and
- a second fluid evacuation component having a stationary positional relationship with the hand piece, the second fluid evacuation component including a second conduit extending into the interior of the hand piece to direct captured fluid into the hand piece.
An electrosurgical instrument, comprising:
- an electrode tip configured to provide electrical energy to a target tissue;
- a first smoke evacuation component having a stationary positional relationship with the electrode tip, the first smoke evacuation component including a first conduit coupled to the electrode tip at a distal end and extending proximally from the electrode tip to direct captured smoke away from the electrode tip;
- a second smoke evacuation component configured to be selectively translatable relative to the electrode tip, the second smoke evacuation component including a second conduit extending proximally from the electrode tip to direct captured smoke away from the electrode tip;
- and
- a utility conduit in communication with the first and second conduits and configured to provide negative pressure to the first and second conduits to draw captured smoke through the first and second conduits and into the utility conduit.
Dependencies are inferred from the claim text.