Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Reexamination Certificate
2001-11-13
2008-10-21
Woo, Julian W (Department: 3773)
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
C604S167010, C604S164010, C606S185000
Reexamination Certificate
active
07438702
ABSTRACT:
A multi-seal trocar system (10) includes a plurality of co-axial sealing elements (30 60,80) adapted for forming a seal with either a large or small instrument. Small and large scaling elements (45,62) are disposed in an in-line arrangement such that a single port is provided for instrument insertion. A zero seal (80) is disposed distally of the sealing elements to seal a working channel of the system and to prevent backflow when no instruments are inserted The small sealing element (45) is configured such that insertion of a large instrument automatically moves the small sealing element (45) out of its path, thereby avoiding contact with the large instrument.
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Brustad John R.
Hart Charles C.
Hilal Nabil
Hilal Said S.
Applied Medical Resources Corporation
Ho Pui Tong
Ikehara Patrick Y.
Vu Kenneth K.
Woo Julian W
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