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A diaphragm is a latex or silicone cup with a firm flexible rim and shallow
dome that can be coated with gel and folded for insertion into the vagina.
Indications for use as a contraceptive:
- Insert diaphragm with spermicide before intercourse
- Apply more spermicide before additional acts of intercourse
- Leave the diaphragm in place for at least six hours after intercourse
- Do not wear for more than 24 hours
Ortho-McNeil
Pharmaceutical
The All-Flex® is a latex diaphragm with a shallow dome and a flexible
rim with an arcing spring. It is available in nine diameter sizes, from
55 to 95mm, in 5mm increments. The All-Flex® diaphragm is available
in the United States and elsewhere. It is the world market leader in diaphragm
sales and distribution.
Ortho-McNeil
Pharmaceutical
The Coil Spring® is a latex diaphragm with a shallow dome and a flexible
rim with a coil spring. It is available in nine diameter sizes, from 55
to 95mm, in 5mm increments. The Coil Spring® diaphragm is available
in the United States and elsewhere. It is a popular method in the United
Kingdom.
Milex
Products, Inc.
The Milex Wide Seal® is a silicone diaphragm with a shallow dome and
a wide rim with an arcing or omniflex spring. It has a small skirt around
the rim intended to hold gel in place and improve the seal. It is available
in eight diameter sizes, from 60 to 95mm, in 5mm increments. The Wide
Seal® diaphragm is available from the manufacturer and is distributed
in the United States, Canada, Europe, Asia, and the Middle East.

Semina
Industries and Commerce Ltd.
The Semina is a clear, silicone diaphragm with a visible coil spring.
It is available in six diameter sizes, from 60 to 85mm, in 5mm increments.
The Semina diaphragm is available in Brazil.
The Reflexions Flat Spring® is a latex diaphragm with a rim that
is similar to the coil spring but thinner and more delicate. It is available
in seven sizes, from 65 to 95 mm, in 5mm increments. The Flat Spring is
manufactured in Britain.
SILCS,
Inc.
SILCS is an intravaginal barrier device currently under development. It
is made of silicone with an arcing ring. SILCS has a pre-shaped rim to
cling high in the vaginal vault and a finger cup on one edge for easy
removal. It will be a one-size-fits-all device.
ReProtect,
LLC.
The BufferGel Duet is a disposable, one-size-fits-all, clear diaphragm
made of dipped polyurethane. It will be marketed pre-filled with BufferGel,
a candidate microbicide and contraceptive.
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