Obstetrical vacuum extractor

Details Obstetrical vacuum extractor Obstetrical vacuum extractor

1992-11-12

1994-01-25

Aschenbrenner, Peter A.

Surgery

Instruments

Obstetric or gynecological instruments

604 74, A61B 1742

Patent

active

052812294

ABSTRACT:
There is disclosed herein a vacuum extractor for use in childbirth and comprising a bell shaped cup having a relatively thin outer flared edge, a hollow stem extending from the cup, and the stem including a handle. A vacuum source can be connected to the stem to draw a vacuum within the cup. A liner is hooked over the flared edge of the cup and provides a relatively large soft and resilient bead for the outer edge of the vacuum extractor which contacts maternal and fetal tissue. The liner is stretched into and secured within the cup and includes an aperture for allowing a vacuum to be drawn within the cup.

REFERENCES:
patent: 667447 (1901-02-01), Miller
patent: 3202152 (1965-08-01), Wood et al.
patent: 4633865 (1987-01-01), Hengstberger et al.
patent: 4730617 (1988-03-01), King
patent: 4794915 (1989-01-01), Larsson
patent: 5019086 (1991-05-01), Neward
patent: 5163944 (1992-11-01), Neward

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