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57 results about "Contraceptive Devices" patented technology

Devices that diminish the likelihood of or prevent conception. (From Dorland, 28th ed)

Cervix contraceptive device containing Chinese medicine platycodon

The invention discloses a traditional Chinese medicine platycodon root cervical contraceptive device, which comprises a stainless steel circular tube bracket, wherein the wall thickness of the circular tube bracket is between 0.5 and 0.8mm, one end of the circular tube bracket is provided with a first fixed circular ring, the other end of the circular tube bracket is provided with a second fixed circular ring, the inner part of the circular tube bracket is provided with a traditional Chinese medicine platycodon root slow-release capsule which is bullet-shaped, and a gap is arranged between the periphery wall of the traditional Chinese medicine platycodon root slow-release capsule and the inner wall of the circular tube bracket; and the outer wall of the circular tube bracket on the second fixed circular ring end is provided with a capsule fixed net. Because the contraceptive device has reasonably designed structure, after the contraceptive device is used by 321 women of child-bearing age for three years, no phenomena of shifting and falling-off occur, and embedding in the myometrial wall occur; moreover, no phenomenon of bleeding and infection occur. The contraceptive device has the advantages of convenient operation, convenient placing and taking-out and convenient capsule placing.
Owner:SHANDONG PROVINCIAL FAMILY PLANNING INST OF SCI & TECH

Shape memory contraceptive device on oviduct for realizing contraception

The invention discloses a shape memory oviduct contraception device for realizing contraception. The device comprises a contraceptive suppository and a placer, wherein the contraceptive suppository is made of a macromolecular polymer material with shape memory effect; the shape memory polymer material is a polymer material of multistage polyurethane based on lactide and 1,4-p-dioxanone; the contraceptive suppository comprises a front section, a middle section and a tail section; the front section comprises a front part and a middle rear part, wherein the front part is of shuttle shape with smooth surface, and the middle rear part is a cylinder of which the surface is provided with a plurality of undulations; and the placer comprises an outer sleeve and an inner sheath. The device places the contraceptive suppository which maintains small diameter before placing in a perfect position inside the oviduct through a hysteroscope, and the contraceptive suppository is gradually deformed by the action of human body temperature and is restored to the initial shape of the contraceptive suppository, thereby completely blocking the oviduct to achieve the aim of contraception. The device has the advantages of convenience, high efficiency, safety, reliable contraception effect, non toxic or side effect and the like, and is applicable to popularization and application on a large scale.
Owner:ARMY MEDICAL UNIV +1

Cervical contraceptive device with polygala capable of killing sperms

The invention discloses a cervical contraceptive device which contains a traditional Chinese medicine which is prepared from a medicinal herb of radix polygalae and used for killing sperms. The cervical contraceptive device comprises a circular tube bracket. The wall of the circular tube bracket comprises two layers, i.e., an outer layer which is a meshy wall braided with Nitinol wires and an inner layer which is a methyl vinyl silicone rubber layer with a thickness of 0.5mm to 1mm; one end of the circular tube bracket is provided with a first fixed circular ring, the other end of the circular tube bracket is provided with a second fixed circular ring; a slow-release suppository prepared from the medicinal herb of radix polygalae is installed in the circular tube bracket; the slow-release suppository prepared from medicinal herb of radix polygalae takes the shape of the head of a bullet, and a clearance is set between the outer perine of the slow-release suppository and the inner wall of the methyl vinyl silicone rubber layer; and a suppository fixing mesh is installed in a position in which the outer end of the second fixed circular ring is connected with the outer wall of the circular tube bracket. The cervical contraceptive device has reasonable structure and design. According to 3-year statistics of 265 cases of women of child-bearing age who use the device, symptoms of falling off, replacement, bleeding, infection, sore in waist, abdominal pain or intramural embedment and the like of the device never happen. The cervical contraceptive device provides a safe and reliable contraceptive device without side effects or complicating diseases for women of child-bearing age.
Owner:SHANDONG PROVINCIAL FAMILY PLANNING INST OF SCI & TECH
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