Assembly sleeve for cranial drill

Details Assembly sleeve for cranial drill Assembly sleeve for cranial drill

1987-08-10

1989-05-16

Hafer, Robert A.

Surgery

Truss

Pad

128 92VD, 408139, A61B 1716

Patent

active

048300012

ABSTRACT:
A cranial perforator with an internal clutch which is engaged when the drill is placed against a bone surface for drilling and which will automatically release when the drill penetrates the skull. The components of the drill are held together by a plastic sleeve and a retaining ring which is ultrasonically welded to the interior surface of the plastic sleeve.

REFERENCES:
patent: 2525669 (1950-10-01), Hainault
patent: 3887222 (1975-06-01), Hammond
patent: 4142543 (1979-03-01), Krause et al.
patent: 4319577 (1982-03-01), Bofinger et al.
patent: 4362161 (1982-12-01), Reimels et al.
patent: 4365696 (1982-12-01), Telford
patent: 4541612 (1985-09-01), Yohner
patent: 4544425 (1985-10-01), Provolo
patent: 4699550 (1987-10-01), Baker

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