Smoke evacuating tissue guard for tissue removal and other surgical procedures
AssigneeCovidien LP
InventorsJacob C. Baril, Matthew A. Dinino, Saumya Banerjee
Life of this patent
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Abstract
A smoke evacuating tissue guard includes a tubular body defining a longitudinally-extending passageway, a collar coupled to a proximal end portion of the tubular body, and an outlet coupled to the collar and in fluid communication with an annular channel defined through the collar. Upon application of suction through the smoke evacuating tissue guard, the smoke evacuating tissue guard establishes a fluid path extending from the passageway of the tubular body and into the annular channel of the collar via an annular gap defined between the tubular body and the collar.
Claims17
A smoke evacuating tissue guard, comprising:
- a tubular body having an outwardly flared proximal end portion and a distal end portion, the tubular body defining a longitudinally-extending passageway;
- a collar attached to the proximal end portion of the tubular body and defining an annular channel, the collar including:
- an outer annular section;
- an inner annular section facing the passageway and spaced from the proximal end portion of the tubular body to define a first gap therebetween;
- and
- a lip extending radially inward from the inner annular section and spaced from the proximal end portion of the tubular body to define a second gap therebetween;
- and
- an outlet extending from the collar and defining an inner channel in fluid communication with the annular channel, wherein the first gap is less than a diameter of the annular channel and the second gap, such that the smoke evacuation tissue guard is configured to establish a pressure differential in the first gap upon application of suction through the smoke evacuating tissue guard.
A smoke evacuating tissue guard, comprising:
- a tubular body defining a longitudinally-extending passageway and including:
- an outwardly flared proximal end portion;
- an outwardly flared distal end portion;
- and
- an intermediate portion connecting the proximal and distal end portions;
- a ring-shaped collar defining an annular channel and including:
- an outer annular section extending from the proximal end portion of the tubular body;
- an inner annular section facing the passageway and being spaced from the proximal end portion of the tubular body to define a first annular gap therebetween;
- and
- an outlet coupled to the collar and defining an inner channel in fluid communication with the annular channel, wherein the smoke evacuating guard is configured to establish a fluid path that extends from the passageway of the tubular body, into the annular channel via the first annular gap, and into the inner channel via the annular channel upon application of suction through the smoke evacuating tissue guard.
Dependencies are inferred from the claim text.