The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 1997
Filed:
Jun. 07, 1995
Graphic Controls Corporation, Buffalo, NY (US);
Abstract
A biocompatible hydrogel adhesive which is prepared from a precursor containing acrylic acid and an alcoholamine and is adhesive under both wet and dry conditions. The use of diisopropanolamine provides these unexpected and unique wet tack properties and permits adhesion to wet tissue. Additionally, the use of a polyol which contains hydroxyl groups, such as glycerine, and a diamine, such as 2-methylpentamethylenediamine, is found to provide a hydrogel having wet adhesive properties and longer shelf life. The hydrogel adhesive can be used as an attachment means in conjunction with a biomedical detection or monitoring means. The adhesive may be used to attach a sensor on the skin of an intrautero fetus and to monitor the well being of the fetus during labor and delivery. The hydrogel having wet adhesive properties permits the attachment of a sensor or sensors onto wet tissue. The biocompatible adhesive is used to attach a fetal probe securely to a fetus. The adhesive can be used as an attachment means for a drug delivery or prosthetic device or as an attachment means for fixing a contraceptive device to the wall of the uterus. The attachment means could also be used in the oral cavity to fix a sensor or for oral therapies.