Anti-Extravasation Sheath
First Claim
Patent Images
1. An anti-extravasation sheath comprising:
- a tube characterized by a distal portion, a proximal portion, an inner surface, and an inner diameter;
wherein the inner diameter of said tube is sized and dimensioned to permit fluid flow between the inner surface of the tube and an outer surface of an arthroscopic instrument when the arthroscopic instrument is disposed within the tube;
a plurality of ribs extending inwardly from the inner surface of the tube and running longitudinally along the tube;
at least one drainage lumen running longitudinally along the tube and disposed within the ribs;
wherein the ribs form a seal between the outer surface of the arthroscopic instrument and the ribs when an arthroscopic instrument is inserted into the tube;
wherein said ribs further define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the tube;
at least one inflow/outflow hole disposed on the distal portion of the tube in fluid communication with at least one outer lumen defined between the outer surface of the arthroscopic instrument and the inner surface of the tube when the arthroscopic instrument is disposed within the tube; and
at least one drainage aperture disposed on the central portion of the tube in fluid communication with at least one drainage lumen.
1 Assignment
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Accused Products
Abstract
The devices and methods shown provide for the minimization of extravasation during arthroscopic surgery. The anti-extravasation sheath allows a surgeon to drain excess fluids from the soft tissue surrounding the surgical field during arthroscopic surgical procedures.
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Citations
6 Claims
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1. An anti-extravasation sheath comprising:
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a tube characterized by a distal portion, a proximal portion, an inner surface, and an inner diameter; wherein the inner diameter of said tube is sized and dimensioned to permit fluid flow between the inner surface of the tube and an outer surface of an arthroscopic instrument when the arthroscopic instrument is disposed within the tube; a plurality of ribs extending inwardly from the inner surface of the tube and running longitudinally along the tube; at least one drainage lumen running longitudinally along the tube and disposed within the ribs; wherein the ribs form a seal between the outer surface of the arthroscopic instrument and the ribs when an arthroscopic instrument is inserted into the tube; wherein said ribs further define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the tube; at least one inflow/outflow hole disposed on the distal portion of the tube in fluid communication with at least one outer lumen defined between the outer surface of the arthroscopic instrument and the inner surface of the tube when the arthroscopic instrument is disposed within the tube; and at least one drainage aperture disposed on the central portion of the tube in fluid communication with at least one drainage lumen. - View Dependent Claims (2)
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3. A system for performing arthroscopic surgery, said system comprising:
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an arthroscopic instrument suitable for performing an arthroscopic surgical procedure; an anti-extravasation sheath having an inner diameter sized and dimensioned to permit fluid flow between an inner surface of the sheath and an outer surface of the arthroscopic instrument disposed within the sheath, said sheath having at least one rib extending inwardly from the inner surface of the sheath and running longitudinally along the sheath and at least one drainage lumen disposed within the rib; wherein said rib defines outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the sheath; wherein the sheath is adapted to be removably disposed over the arthroscopic instrument; at least one drainage aperture disposed in a central portion of the sheath in fluid communication with the drainage lumen; and at least one inflow/outflow hole disposed on a distal portion of the sheath in fluid communication with at least one outer lumen defined between the outer surface of the arthroscopic instrument and inner surface of the tube when the arthroscopic instrument is disposed within the tube. - View Dependent Claims (4)
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5. An anti-extravasation sheath comprising:
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an inner tube characterized by an inner diameter sized and dimensioned to closely fit around an outer diameter of an arthroscopic instrument; an outer tube disposed about the inner tube; a plurality of ribs extending between the inner and outer tubes and running longitudinally along the length of the sheath; wherein the inner tube, the outer tube and the plurality of ribs bound a plurality of drainage lumens that extend between the inner and outer tubes and that run along the length of the sheath; and a plurality of drainage apertures disposed in a central portion of the outer tube, said drainage apertures in fluid communication with the drainage lumens and adapted to drain fluid from tissue surrounding an arthroscopic field during an arthroscopic surgical procedure. - View Dependent Claims (6)
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Specification