Spatial intrauterine contraceptive insert

• US 3,957,042 A
• Filed: 04/23/1975
• Issued: 05/18/1976
• Est. Priority Date: 04/23/1975
• Status: Expired due to Term

• Current Assignee: Akademia Medyczna We Wroclawiu
• Original Assignee: Akademia Medyczna We Wroclawiu
• Inventors: Krzaklewski, Stanislaw, Reszczynski, Andrzej, Suski, Henryk
• Primary Examiner(s): Trapp, Lawrence W.
• Application Number:
  US05/570,794
• Time in Patent Office: 391 Days
• Field of Search: 128/127-131, 128/260
• US Class Current: 128/839
• CPC Class Codes: A61F 6/142 Wirelike structures, e.g. loops, rings, spirals

Abstract

A spatial intrauterine contraceptive insert which after being introduced by means of a normal inserter into the uterus cavity takes on by itself the appearance of a spatial body.

The insert has two arms 1, 2, the ends of which are connected permanently and formed into two spatial spirals along axes 4, 5 that intersect in an acute angle. In cross-section, the arms 1, 2 take on the shape of a circle. The parts of the arms 1, 2 which are formed as spirals of about 11/2 turns have the appearance of a mirror image. Near the end of the first turn of the spiral the arms 1 and 2 are immobilized by means of a link 6 made of copper. At the juncture point of said arms there is provided a thread 7 for facilitating the removal of the insert from the uterus.

Claims

1. A spatial intrauterine contraceptive insert made of an elastic non-reactive plastic characterized by the feature of having two arms, the ends of which are connected permanently and formed into two spatial spirals along the axes that intersect in an acute angle, while near the end of the first loop of each spiral, both arms are immobilized by means of a link made of copper.

2. The insert according to claim 1, wherein said arms that are formed as spirals and situated along said axes have one and half loops and take on the appearance of mirror images.

3. The insert according to claim 1, wherein said arms in cross-section take on the shape of a circle.