Surgical devices and methods
First Claim
1. A cannula for surgical procedures, the cannula comprising:
- a body member having an inner wall forming a lumen along at least a proximal portion of a length of said body member to form a port for a surgical tool, said inner wall and an outer wall of said body member being split to form branches at a distal end of said lumen so as to form a plurality of flexible fins,wherein a cavity is disposed within each of said plurality of flexible fins,wherein an elongate shaft is embedded within each of said cavities.
2 Assignments
0 Petitions
Accused Products
Abstract
Surgical devices having a plurality of outwardly-biased flexible fins capable of inward movement such that the fins converge to provide both a passageway for surgical instruments to traverse towards a surgical site, and provide a substantially impermeable seal, thus providing for fluid retention during the surgical procedure. The outwardly-biased flexible fins provide for soft tissue compression, decreasing the length of the lumen or passageway through which instruments pass, allowing for a wider range of movement of instruments and better access to the surgical site, especially in patients with greater amounts of fat tissue that would otherwise require longer lumen lengths in prior art endoscopic cannulas.
18 Citations
20 Claims
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1. A cannula for surgical procedures, the cannula comprising:
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a body member having an inner wall forming a lumen along at least a proximal portion of a length of said body member to form a port for a surgical tool, said inner wall and an outer wall of said body member being split to form branches at a distal end of said lumen so as to form a plurality of flexible fins, wherein a cavity is disposed within each of said plurality of flexible fins, wherein an elongate shaft is embedded within each of said cavities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A cannula for surgical procedures, the cannula comprising:
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a body member having an inner wall forming a lumen along at least a proximal portion of a length of said body member to form a port for a surgical tool, said inner wall and an outer wall of said body member being split to form branches at a distal end of said lumen so as to form a plurality of flexible fins, wherein a cavity is disposed within each of said plurality of flexible fins, wherein an elongate shaft is embedded within each of said cavities, wherein said inner wall is compressible to form a flexible opening in said lumen. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification