Downward rotating speculum with conical shaped blades

Details Downward rotating speculum with conical shaped blades Downward rotating speculum with conical shaped blades

1990-11-26

1992-12-29

Pellegrino, Stephen C.

Surgery

Truss

Perineal

128 20, A61B 132

Patent

active

051742780

ABSTRACT:
The improved speculum has a downward rotating lower blade, an upward handle, upper and lower blades thicker at the base and narrower at the insertion end with blade surfaces recessed to allow tissue to be held in the recessed area and with transverse recessions that allow the tissue to grip the device.

REFERENCES:
patent: 1613373 (1927-01-01), Beck
patent: 2544932 (1951-03-01), Marco
patent: 2661735 (1953-12-01), Davis
patent: 2809628 (1957-10-01), Jonas
patent: 3332414 (1967-07-01), Gasper
patent: 3565061 (1971-02-01), Reynolds
patent: 3734084 (1973-05-01), Ousterhout
patent: 4052980 (1977-10-01), Grams et al.
patent: 4385626 (1983-05-01), Danz
patent: 4597383 (1986-07-01), Van Der Bel
patent: 4766887 (1988-08-01), Cecil, Jr. et al.

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