Surgical sleeve or cannula with rotating reducer

Details Surgical sleeve or cannula with rotating reducer Surgical sleeve or cannula with rotating reducer

1997-05-06

1998-12-01

Mendez, Manuel

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

A61M 5178

Patent

active

058430407

ABSTRACT:
A surgical sleeve that includes a housing has an opening through which surgical instruments are introduced into the surgical sleeve. A sleeve portion extends from the housing and has an inner diameter coaxial with the opening in the housing. A reducer assembly is removably secured to the housing and includes a rigid seal disc for rotation in a plane transverse to the sleeve portion. A resilient, laminar seal layer is generally coextensive with the seal disc and is disposed between the disc and the housing to sealingly engage a portion of the housing. A plurality of apertures are formed in the seal disc and seal layer and have varying diameters to define seals that are selectively movable, by rotation of the seal disc, over the opening in the housing to seal against exteriors of instruments disposed in the sleeve.

REFERENCES:
patent: 4112932 (1978-09-01), Chiulli
patent: 4822344 (1989-04-01), O'Boyle
patent: 5112321 (1992-05-01), Hiltebrandt
patent: 5122122 (1992-06-01), Allgood
patent: 5350362 (1994-09-01), Stouder, Jr.
patent: 5395342 (1995-03-01), Yoon
patent: 5437626 (1995-08-01), Cohen et al.
patent: 5439455 (1995-08-01), Kieturakis et al.
patent: 5512053 (1996-04-01), Pearson et al.
patent: 5531758 (1996-07-01), Uschold et al.
patent: 5611792 (1997-03-01), Gustafsson
patent: 5676657 (1997-10-01), Yoon

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