Matrix septum
First Claim
Patent Images
1. A matrix septum material which comprisesat least one penetrable, resilient, elastomeric layer having front and back faces;
- a plurality of webs having perforations with peripheries, each web in contact with at least one layer face;
together withmeans for urging said webs toward each other, compressing said layer without substantially obstructing said perforations;
whereby each perforation frames an individual penetrable, self-sealing cell in the matrix septum.
6 Assignments
0 Petitions
Accused Products
Abstract
A matrix septum material, especially useful in medical applications such as implantable drug delivery devices, is provided by retaining a penetrable, resilient, elastomer under compression between webs having peripheries which frame perforations to form individual, self-sealing cells in the matrix.
-
Citations
20 Claims
-
1. A matrix septum material which comprises
at least one penetrable, resilient, elastomeric layer having front and back faces; -
a plurality of webs having perforations with peripheries, each web in contact with at least one layer face;
together withmeans for urging said webs toward each other, compressing said layer without substantially obstructing said perforations; whereby each perforation frames an individual penetrable, self-sealing cell in the matrix septum. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. In an implantable drug-delivery device of the type to which a drug is added with a needle through a septum, the improvement therein which comprises including in the device a needle-penetrable, self-sealing matrix septum which includes
at least one penetrable, resilient, elastomeric, medically acceptable layer having front and back faces; -
a plurality of webs having perforations with peripheries, each web in contact with at least one layer face;
together withmeans for urging said webs toward each other, thereby compressing said layer without substantially obstructing said perforations; whereby each perforation frames an individual penetrable, self=sealing cell in the matrix septum. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. An implantable drug delivery device which comprises
a drug reservoir; -
an outlet from said reservoir; and a needle penetrable, self-sealing septum inlet into said reservoir, said septum comprising at least one penetrable, resilient, elastomeric, medically acceptable layer having front and back faces; a plurality of webs having perforations with peripheries, each web in contact with at least one layer face;
together withmeans for urging said webs toward each other, thereby compressing said layer without substantially obstructing said perforations. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification