Surgery – Female reproductory tract shields – supports – or birth... – With contraceptive – spermacidal – or antifertility agent
Reexamination Certificate
2006-05-09
2006-05-09
Bennett, Henry (Department: 3743)
Surgery
Female reproductory tract shields, supports, or birth...
With contraceptive, spermacidal, or antifertility agent
C128S830000
Reexamination Certificate
active
07040323
ABSTRACT:
Contraceptive intrauterine devices made of thin film shape memory alloy materials. The devices are formed in three-dimensional shapes which contact uterus tissue of a human or other mammal to prevent conception. In certain embodiments, structural features such as tails, fenestrations, ridges or grooves are formed on the devices to enhance the contraceptive effect.
REFERENCES:
patent: 3351463 (1967-11-01), Buehler et al.
patent: 3620212 (1971-11-01), Fannon et al.
patent: 3918443 (1975-11-01), Vennard et al.
patent: 5061914 (1991-10-01), Busch et al.
patent: 5190546 (1993-03-01), Jervis
Gupta Vikas
Johnson A. David
Martynov Valery
Menchaca Leticia
Backus Richard E.
Bennett Henry
Nguyen Camtu
Tini Alloy Company
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