Surgery – Truss – Pad
Patent
1991-04-08
1994-05-24
Green, Randall L.
Surgery
Truss
Pad
128667, 128675, 664287, 73748, A61B 500, A61B 502, A61M 2500, G01L 708
Patent
active
053139577
ABSTRACT:
A physiological pressure transducer assembly mounted on a transvenously-insertable guide wire is disclosed. The multiple coils of the guide wire define an elongated tubular passage within which fiber optic leads are contained for the transmission of light signals to a pressure transducer. A window or aperture is cut along a restricted portion of the length of the guide wire coil to provide a pressure-sensing aperture over which an elastic, pressure-sensitive membrane is positioned. The coils of the guide wire adjacent to the sensing aperture are joined together for increased rigidity along the length of the pressure transducer assembly, as by soldering or brazing. A separate, cylindrical housing, preferably of molded plastic, is wholly contained within the reinforced length of the guide wire. The proximal end portions of fiber optic sending and receiving leads or paths are received and contained within the housing in a predetermined arrangement and geometry defining a light-transmitting gap. Light transmission across the gap is controllably attenuated by deflection of the pressure-responsive membrane in response to pressure changes within a person's body, and the attenuated light signals are transmitted to an external control unit as indicative of pressure changes. A reflector positioned on an end cap closing the proximal end of the elongated guide wire is utilized to reflect signals from the signal transmitting, fiber optic lead or path to the proximal end portion of a return signal, fiber optic lead or path.
REFERENCES:
patent: 3273447 (1966-09-01), Frank
patent: 3686958 (1972-08-01), Porter et al.
patent: 4020829 (1977-05-01), Wilson et al.
patent: 4201222 (1980-05-01), Haase
patent: 4210029 (1980-07-01), Porter
patent: 4487206 (1984-12-01), Aagard
patent: 4543961 (1985-10-01), Brown
patent: 4593701 (1986-06-01), Kobayashi et al.
patent: 4599901 (1986-07-01), Hirschfeld
patent: 4611600 (1986-09-01), Cohen
patent: 4676249 (1987-06-01), Arenas et al.
patent: 4711246 (1987-12-01), Alderson
patent: 4712566 (1987-12-01), Hok
patent: 4722348 (1988-02-01), Ligtenberg et al.
patent: 4737153 (1988-04-01), Shimamura et al.
patent: 4787396 (1988-11-01), Pidorenko
patent: 4805630 (1989-02-01), Storey
patent: 4924870 (1990-05-01), Wlodarczyk et al.
patent: 4924877 (1990-05-01), Brooks
patent: 4936310 (1990-06-01), Engstrom et al.
patent: 4941473 (1990-07-01), Tenerz et al.
patent: 4953553 (1990-09-01), Tremulis
patent: 4991590 (1991-02-01), Shi
patent: 5005584 (1991-04-01), Little
patent: 5018529 (1991-05-01), Tenerz et al.
patent: 5067491 (1991-11-01), Taylor III et al.
patent: 5080297 (1991-09-01), Metzger
patent: 5085223 (1992-02-01), Lars et al.
Copy of materials from Cardiovascular Procedures, Tilkian et al., Copyright 1986, pp. 3-23, 36.
One page sheet entitled Catheter Introducer/Kit/Tray, printed on behalf of Argon Medical Corporation, Copyright 1985.
Green Randall L.
Medamicus, Inc.
Reichle K.
LandOfFree
Guide wire mounted pressure transducer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Guide wire mounted pressure transducer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Guide wire mounted pressure transducer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966469