Surgery – Truss – Perineal
Patent
1988-03-25
1989-08-08
Grieb, William H.
Surgery
Truss
Perineal
128 17, 128 20, A61B 130
Patent
active
048543004
ABSTRACT:
The invention comprises a low-cost vaginal speculum made of plastics for vaginal observation and minor operations, particularly apt for routine examination and periodical check-ups. In order to provide a safeguard against reuse of the speculum and guarantee non-use to the patient, the observation window of the instrument is initially provided with a patch sealably closing it. The patch may be removed in sight of the patient by breaking off a pair of tabs, after which it may not be replaced; thus the speculum has to be discarded after first use. The speculum is further provided with means for regulating the opening of its tongs to reduce the possibility of hurting or frightening the patient. In a preferred embodiment, the means for adjusting the opening of the tongs comprise two pivoted lever-arms which cam on the inside surfaces of the respective tongs. Each lever arm extends through a slot in a wall of the speculum to form an actuator head accessible to the doctor. At its opposite end, each lever-arm comprises a notched end caming on the inside of the respective tong, preferably against a guide-ratch.
REFERENCES:
patent: 4667837 (1987-05-01), Vitello et al.
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