Low-cost, disposable, polymer-based, differential output flexure

Details Low-cost, disposable, polymer-based, differential output flexure Low-cost, disposable, polymer-based, differential output flexure

1996-11-21

1998-10-27

Jastrzab, Jeffrey R.

Surgery

Diagnostic testing

Cardiovascular

600586, 181131, 310311, 310368, 381190, A61B 704

Patent

active

058271988

ABSTRACT:
The present invention relates to a low-cost, disposable, flexure sensor with an active portion which includes first and second sensor elements formed from a piezoelectric polymer material. Each of the first and second sensor elements has a first surface and an opposed second surface. A first electrically conductive area is formed on the first surface of each sensor element and is connected to a second electrically conductive area on the second surface. In a preferred embodiment of the present invention, the electrical connection is formed by a plated hole which extends through the sensor element from the first surface to the second surface. Still further, each of the first and second sensor elements has a third electrically conductive area on the first surface, which electrically conductive area is electrically isolated from the first electrically conductive area. The active portion of the sensor includes at least one layer of an elastomeric substrate material positioned between the first and second sensor elements. Still further, a layer of hydrogel is affixed to one of the first and second sensor elements and a cover or protective layer is attached to the other of the first and second sensor elements. The hydrogel layer and the polyethylene layer are notched or otherwise configured so as to accommodate a connection tab on said sensor elements. A method for fabricating the acoustic sensor is also disclosed.

REFERENCES:
patent: 4054808 (1977-10-01), Tanaka
patent: 4633122 (1986-12-01), Radice
patent: 5140992 (1992-08-01), Zuckerwar et al.
patent: 5365937 (1994-11-01), Reeves et al.
patent: 5595188 (1997-01-01), Kassal

Affiliated with

Also associated with

Rating

Low-cost, disposable, polymer-based, differential output flexure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-cost, disposable, polymer-based, differential output flexure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-cost, disposable, polymer-based, differential output flexure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1610013