Surgery – Instruments – Internal pressure applicator
Patent
1997-01-21
1998-06-16
Buiz, Michael Powell
Surgery
Instruments
Internal pressure applicator
604270, 604280, A61M 2500
Patent
active
057662029
ABSTRACT:
A wire-guided esophageal bougie comprises a PTFE-lined, silicone rubber tube with a tapered, silicone rubber dilator on its distal end, the dilator being more flexible than the PTFE-lined tube. Radiopaque material throughout the length of the tube renders it fluoroscopically visible in the esophagus while a radiopaque ring in the dilator fluoroscopically locates the position of the dilator relative to a stricture.
REFERENCES:
patent: 4516970 (1985-05-01), Kaufman et al.
patent: 4631054 (1986-12-01), Kim
patent: 4726373 (1988-02-01), Greengrass
patent: 4874365 (1989-10-01), Frederick et al.
patent: 5017193 (1991-05-01), Fields
patent: 5078701 (1992-01-01), Grassi et al.
patent: 5366471 (1994-11-01), Jones et al.
patent: 5599322 (1997-02-01), Quinn
1993 Pilling Catalog pp. 127 & 543 describing Hurst and Maloney bougies.
Esophageal Dilation: Instruments and Techniques, May 1988, pp. 473 -475.
Jones Richard G.
Miner Jeff
Buiz Michael Powell
Lewis William W.
Pilling Weck Incorporated
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