Patent EP0241971A1 successfully refreshed from Google Patents.
EP0241971A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for manufacturing a medicated disposable pessary and medicated disposable pessary
Assignee: FUNDATECH SA
•
Filing: 1987-03-25
•
Granted: —
•
Expires: 2007-03-25
Abstract
Abstract The present invention relates to a method for manufacturing a medicated disposable pessary, consisting of a porous spongy synthetic material. According to the present method a pessary comprising a resilient synthetic ring is manufactured by compressing a porous spongy synthetic material with a relatively large thickness into the desired shape, the thickness of the porous spongy synthetic material being remarkably reduced with respect to its original thickness, followed by curing the resilient synthetic ring and the compressed shaped material together to form the desired pessary, and impregnating the pessary obtained with a solution of at least one medication. Furthermore the present invention comprises a medicated pessary consisting of a resilient synthetic ring with a suitable diameter and a porous spongy synthetic material secured thereto by curing, which is impregnated with a solution of at least one medication.
Inventors
- 👤 Marc Spits
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 06:12
CPC Classifications
A; A61; A61F; A61F6/00; A61F6/06; A61F6/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A method for manufacturing a medicated disposable pessary, consisting of a porous spongy synthetic material, characterized in that a pessary comprising a resilient synthetic ring is manufactured by compressing a porous spongy synthetic material with a relatively large thickness into the desired shape, the thickness of the porous spongy synthetic material being remarkably reduced with respect to its original thickness, followed by curing the resilient synthetic ring and the compressed shaped material together to form the desired pessary, and impregnating the pessary obtained with a solution of at least one medication.
Claim 2
Independent Claim
91 words
A method for manufacturing a medicated disposable pessary, consisting of a porous spongy synthetic material, characterized in that a pessary comprising a resilient synthetic ring is manufactured by compressing a porous spongy synthetic material with a relatively large thickness into the desired shape, the thickness of the porous spongy synthetic material being remarkably reduced with respect to its original thickness, followed by curing the resilient synthetic ring and the compressed shaped material together to form the desired pessary, and impregnating the pessary obtained with a solution of at least one medication.
Claim 3
Dependent Claim
30 words
The method of claim 1, characterized in that the thickness of the porous spongy synthetic material is prior to compression 0,5-1,0 cm and after compression 10-20% of its original thickness.
Claim 4
Dependent Claim
36 words
The method of claim 1 or 2, characterized in that the compression of the porous spongy synthetic material is carried out at a temperature of 180-220°C and at a small pressure of less than 10 kg/cm².
Claim 5
Independent Claim
27 words
The method of claims 1 - 3, characterized in that the curing is carried out at a temperature of 180-220°C and at a pressure of 70-115 kg/cm².
Claim 6
Independent Claim
31 words
The method of claims 1 - 4, characterized in that the porous spongy synthetic material with relatively large thickness is a thermically cross-linked polyester polyurethane foam having a controlled pore size.
Claim 7
Independent Claim
29 words
The method of claims 1 - 4, characterized in that the resilient synthetic ring consists of a material having a melting point lower than the porous spongy synthetic material.
Claim 8
Dependent Claim
29 words
The method of claim 6, characterized in that the resilient synthetic ring consists of ethylene vinyl acetate, with the porous spongy synthetic material being thermically cross-linked polyester polyurethane foam.
Claim 9
Independent Claim
30 words
The method of claims 1 - 7, characterized in that the pessary obtained is impregnated with spermicidal and/or other substances, after which it is packed in air/liquid tight unitary packings.
Claim 10
Dependent Claim
34 words
A medicated pessary consisting of a resilient synthetic ring with a suitable diameter and a porous spongy synthetic material secured thereto by curing, which is impregnated with a solution of at least one medication.
Claim 11
Dependent Claim
34 words
A medicated pessary consisting of a resilient synthetic ring with a suitable diameter and a porous spongy synthetic material secured thereto by curing, which is impregnated with a solution of at least one medication.
Claim 12
Dependent Claim
31 words
The pessary of claim 9, characterized in that the resilient synthetic ring consists of ethylene vinyl acetate and the porous spongy synthetic material consists of compressed thermically cross-linked polyester polyurethane foam.
References Cited (Backward Citations)
US4093490A
Cited
US4393871A
Cited
EP0094695A1
Cited
US4369773A
Cited
GB2096466A
Cited
US4427477A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.