Surgery – Respiratory method or device
Patent
1997-05-30
2000-07-11
Weiss, John G.
Surgery
Respiratory method or device
12820312, 12820121, 128DIG27, 600410, 600529, 62637, A61M 1600
Patent
active
060857439
ABSTRACT:
A system, and corresponding method, that interfaces with a gas polarization system to deliver a polarized noble gas to a subject for inhalation. Large volumes of polarized noble gas are obtained by repeated production/freezing cycles of a spin-exchange system. A storage cylinder is provided for storing a polarized noble gas. A gas delivery line is coupled to the storage cylinder and selectively delivers the polarized noble gas to the storage cylinder, and from the storage cylinder to the subject. A vacuum means is in communication with the gas delivery line for evacuating the storage cylinder in the gas delivery line prior to the noble gas being delivered thereto. A plurality of non-metallic gas delivery valves, located between the gas delivery line and the vacuum means, selectively control communication between the vacuum means and the polarized noble gas to minimize depolarization of the polarized noble gas during delivery of the noble gas to the subject on a breath-by-breath basis, or at a constant delivery rate. Control of remotely activated pneumatic valves allows complete automation of the polarization/accumulation/storage/delivery cycle for use in a low maintenance commercial device suitable for clinical and research applications. The polarization stage can be optimized for a particular noble gas species and particular application by the specific programming of the control electronics or computer.
REFERENCES:
patent: 5007243 (1991-04-01), Yamaguchi et al.
patent: 5039500 (1991-08-01), Shino et al.
patent: 5099834 (1992-03-01), Fishman
patent: 5357959 (1994-10-01), Fishman
patent: 5617859 (1997-04-01), Souza et al.
patent: 5809801 (1998-09-01), Cates, Jr. et al.
Chupp Timothy
Coulter Kevin P.
Rosen Matthew S.
Swanson Scott D.
Welsh Robert C.
Srivastava V.
The Regent of the University of Michigan
Weiss John G.
LandOfFree
Polarized gas delivery system/method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polarized gas delivery system/method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarized gas delivery system/method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-531795