U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Electrified intrauterine device

Patent 4932421 Issued on June 12, 1990. Estimated Expiration Date: Icon_subject January 23, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

454573

527788

3777748

3866613

3918444

Method and apparatus for inserting an intrauterine contraceptive device
Patent #: 4026281
Issued on: 05/31/1977
Inventor: Mayberry ,   et al.

Temperature monitoring and display system
Patent #: 4031365
Issued on: 06/21/1977
Inventor: Raggiotti ,   et al.

Intrauterine device remover
Patent #: 4561433
Issued on: 12/31/1985
Inventor: Wheeler ,   et al.

Birth control method and device employing electric forces
Patent #: 4616640
Issued on: 10/14/1986
Inventor: Kaali ,   et al.

Size-variable intrauterine pressay and contraceptive device
Patent #: 4724832
Issued on: 02/16/1988
Inventor: Strubel ,   et al.

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Inventors

Application

No. 300413 filed on 01/23/1989

US Classes:

128/831, Fallopian occluders128/833, Intrauterine128/839Intrauterine

Examiners

Primary: Hafer, Robert A.
Assistant: Brown, Michael A.

Attorney, Agent or Firm

International Classes

A61F 013/00
A61F 005/00

Abstract

An electrified intrauterine device (IUD) is provided which has an IUD body member fabricated from materials which are physiologically compatible with human tissue and fluids and physically proportioned to be placed and retained within the uterus of a female mammal. Spaced-apart electrically conductive electrodes are formed on the IUD body member from electrically conductive materials that are physiologically compatible with human tissue and fluids. Self-contained electric batteries are supported within the IUD body member that forms a sealed outer casing of biologically inert material compatible with human tissue and fluids. The batteries are capable of producing an electromotive force of known voltage and current rating and are of a size to be inserted and retained within the uterus of a female mammal. The device is completed by electrically conductive interconnecting conductors between respective opposite polarity terminals of the batteries and respective ones of the spaced-apart electrically conductive electrodes on the IUD body member whereby an electric field force can be established and maintained within the uterus of a female mammal in which the electrified IUD is inserted.

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