Surgery – Instruments – Forceps
Patent
1994-04-28
1997-01-07
Buiz, Michael Powell
Surgery
Instruments
Forceps
606170, 606174, 128751, A61B 1700, A61B 1000
Patent
active
055912028
ABSTRACT:
A low friction sheath for endoscopic instruments is made from an extrusion grade of high density polyethylene (HDPE). The sheath is formed as an extruded polyethylene tube having an inner diameter slightly smaller than the outer diameter of the instrument it will cover. In order to place the sheath over the instrument, a containment sleeve is placed over the sheath and a source of pressurized gas is coupled to one end of the sheath. The endoscopic instrument tube is sealed and inserted into the other end of the sheath. The polyethylene sheath is filled with gas so that it expands against the containment sleeve and the endoscopic instrument tube is pushed into the expanded polyethylene sheath. The gas is released from the polyethylene sheath and it contracts against the outer surface of the endoscopic instrument tube. The sheath is preferably made from a HDPE having a microfractured surface with 10-20 micron fractures.
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Mazzeo Anthony I.
Nunez George
Palmer Matthew A.
Slater Charles R.
Smith Kevin W.
Buiz Michael Powell
Gordon David P.
Lewis William
Symbiosis Corporation
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