INTRAUTERINE CONTRACEPTIVE DEVICE

An intrauterine contraceptive device comprises an outer ring formed with a central membrane to prevent tissue obtrusion and control the deflection characteristics of the device, and lateral spurs slanted in a retrograde direction to impede expulsion through the cervical os. The device is molded of a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	IRWIN S. LERNER
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DIAGNOSIS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES SURGERY TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	An intrauterine contraceptive device comprises an outer ring formed with a central membrane to prevent tissue obtrusion and control the deflection characteristics of the device, and lateral spurs slanted in a retrograde direction to impede expulsion through the cervical os. The device is molded of a plastic material and may be coated with a metal film as a barrier against calcium deposits and provide radio-opacity.