Patent EP0010812A1 successfully refreshed from Google Patents.
EP0010812A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Contraceptive device
Assignee: Verschoof Karel Johan Hendrik
•
Filing: 1979-10-26
•
Granted: —
•
Expires: 1999-10-26
Abstract
Abstract Contraceptive device for intra uterine application in the oviducts having two enlargements 1, 2 connected by an oblong connection element 3 to a halter shape which enlargements remain fixed in the muscle tissues since the surface areas of the projections of these enlargements on a plane transverse to the longitudinal axis of the device are almost equal
Inventors
- 👤 Karel Johan Hendrik Verschoof
- 👤 Jan Willem Smit
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/20; A61F6/22; A61F6/225
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
73 words
Contraceptive device for intra uterine application having an oblong connection element connecting two separate enlargements having rounded shapes characterised in that the enlargements and the connection element are of a dumb-bell shape and that the surface areas of the projections of these enlargements on a plane transverse to the longitudinal axis on a plane transverse to the longitundinal axis of the device are almost equal, the enlargements abruptly merging into the connection element.
Claim 2
Dependent Claim
73 words
Contraceptive device for intra uterine application having an oblong connection element connecting two separate enlargements having rounded shapes characterised in that the enlargements and the connection element are of a dumb-bell shape and that the surface areas of the projections of these enlargements on a plane transverse to the longitudinal axis on a plane transverse to the longitundinal axis of the device are almost equal, the enlargements abruptly merging into the connection element.
Claim 3
Dependent Claim
39 words
Contraceptive device of claim 1, characterised in the enlargements having a diameter of from 2-6 mm, the sandwiched connection element being 2-14 mm long and having a thickness amounting 0,4 - 0,8 times the largest diameter of the enlargements.
Claim 4
Dependent Claim
30 words
Contraceptive device of claim 1, characterised in at least part of it being provided with at least a circular layer of a material which can highly expand by water absorption.
Claim 5
Dependent Claim
17 words
Contraceptive device of claim 1, characterised in that the entire device is made of highly expandible material.
Claim 6
Dependent Claim
13 words
Contraceptive device of claim 3, characterised in the expandible material being a hydrogel.
Claim 7
Dependent Claim
13 words
Contraceptive device of any claim 1-5, characterised in the expandible material being polyhema.
Claim 8
Dependent Claim
15 words
Contraceptive device of any claim 1-6, characterised in the enlargements having a copper containing core.
Claim 9
Dependent Claim
19 words
Contraceptive device of any claim 1-7, characterised in the enlargements at least partly being of rubber elastic synthetic resin.
Claim 10
Dependent Claim
29 words
Contraceptive device of any claim 1-8, characterised in the oblong connection element being provided with at least one circular rib having a smaller diameter than that of the enlargements.
Claim 11
Dependent Claim
18 words
Contraceptive device of any claim 1-9, characterised in the device being hollow and open at one end only.
References Cited (Backward Citations)
US3405711A
Cited
NL6709780A
Cited
US3805767A
Cited
NL7402502A
Cited
DE2328175A1
Cited
FR2263738A1
Cited
DE2537620A1
Cited
NL7801015A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.