JPH0232256Y2 - - Google Patents

Info

Publication number

JPH0232256Y2

JPH0232256Y2 JP1985047652U JP4765285U JPH0232256Y2 JP H0232256 Y2 JPH0232256 Y2 JP H0232256Y2 JP 1985047652 U JP1985047652 U JP 1985047652U JP 4765285 U JP4765285 U JP 4765285U JP H0232256 Y2 JPH0232256 Y2 JP H0232256Y2

Authority

JP

Japan

Prior art keywords

shape

contraceptive device

uterus

temperature

alloy

Prior art date

1985-03-30

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Links

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• 239000003433 contraceptive agent Substances 0.000 claims description 26
• 230000002254 contraceptive effect Effects 0.000 claims description 26
• 229910045601 alloy Inorganic materials 0.000 claims description 15
• 239000000956 alloy Substances 0.000 claims description 15
• 230000036760 body temperature Effects 0.000 claims description 5
• 230000009466 transformation Effects 0.000 claims description 4
• 230000037431 insertion Effects 0.000 description 18
• 238000003780 insertion Methods 0.000 description 18
• 210000004291 uterus Anatomy 0.000 description 14
• PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
• 239000002184 metal Substances 0.000 description 4
• 229910052751 metal Inorganic materials 0.000 description 4
• 229910001566 austenite Inorganic materials 0.000 description 3
• 239000011247 coating layer Substances 0.000 description 3
• 239000004698 Polyethylene Substances 0.000 description 2
• 229910004337 Ti-Ni Inorganic materials 0.000 description 2
• 229910011209 Ti—Ni Inorganic materials 0.000 description 2
• KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 2
• 229910000734 martensite Inorganic materials 0.000 description 2
• 150000002739 metals Chemical class 0.000 description 2
• 229910052759 nickel Inorganic materials 0.000 description 2
• -1 polyethylene Polymers 0.000 description 2
• 229920000573 polyethylene Polymers 0.000 description 2
• 239000000057 synthetic resin Substances 0.000 description 2
• 229920003002 synthetic resin Polymers 0.000 description 2
• 229910000925 Cd alloy Inorganic materials 0.000 description 1
• 229910000990 Ni alloy Inorganic materials 0.000 description 1
• 229910001069 Ti alloy Inorganic materials 0.000 description 1
• RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
• 238000000137 annealing Methods 0.000 description 1
• 229910052793 cadmium Inorganic materials 0.000 description 1
• 238000005266 casting Methods 0.000 description 1
• 238000005520 cutting process Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 238000005242 forging Methods 0.000 description 1
• 238000005098 hot rolling Methods 0.000 description 1
• 238000004519 manufacturing process Methods 0.000 description 1
• 238000002156 mixing Methods 0.000 description 1
• 239000000203 mixture Substances 0.000 description 1
• 229910001000 nickel titanium Inorganic materials 0.000 description 1
• 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
• 238000007493 shaping process Methods 0.000 description 1
• 239000010936 titanium Substances 0.000 description 1
• 229910052719 titanium Inorganic materials 0.000 description 1
• 238000005491 wire drawing Methods 0.000 description 1