Surgery – Controlled release therapeutic device or system – Osmotic or diffusion pumped device or system
Reexamination Certificate
2008-01-08
2008-01-08
Sirmons, Kevin C. (Department: 3767)
Surgery
Controlled release therapeutic device or system
Osmotic or diffusion pumped device or system
Reexamination Certificate
active
11237489
ABSTRACT:
An implantable osmotically driven delivery system having a dynamic, two-way valve and a self-adjusting, variable geometry fluid flow channel. As pressure within the agent delivery system increases, the fluid channel narrows, thereby restricting flow. At exceptionally high pressures, the valve can be designed to close altogether at the orifice or delivery end, or it can provide a minimal leak path so that a maximum fluid flow is never exceeded. At zero or very low pressures, the valve will close completely at the beneficial agent reservoir end, isolating the beneficial agent formulation from external fluid infiltration and thereby eliminating diffusion of external fluid into the beneficial agent formulation.
REFERENCES:
patent: 3122162 (1964-02-01), Sands
patent: 3987790 (1976-10-01), Eckenhoff et al.
patent: 4865845 (1989-09-01), Eckenhoff et al.
patent: 5059423 (1991-10-01), Magruder et al.
patent: 5112614 (1992-05-01), Magruder et al.
patent: 5137727 (1992-08-01), Eckenhoff
patent: 5213809 (1993-05-01), Wright et al.
patent: 5221278 (1993-06-01), Linkwitz et al.
patent: 5234692 (1993-08-01), Magruder et al.
patent: 5234693 (1993-08-01), Magruder et al.
patent: 5308348 (1994-05-01), Balaban et al.
patent: 5413572 (1995-05-01), Wong et al.
patent: 5514110 (1996-05-01), Teh
patent: 5540665 (1996-07-01), Mercado et al.
patent: 5728396 (1998-03-01), Peery et al.
patent: 5985305 (1999-11-01), Peery et al.
patent: 5997527 (1999-12-01), Gumucio et al.
patent: 6183461 (2001-02-01), Matsuura et al.
patent: 6270787 (2001-08-01), Ayer
patent: 6508808 (2003-01-01), Carr et al.
patent: 6835194 (2004-12-01), Johnson et al.
patent: 2003/0097121 (2003-05-01), Jolly et al.
patent: 640907 (1928-07-01), None
patent: WO 97/47339 (1997-12-01), None
Ann. Book of ASTM Stds., vol. 8.02, pp. 208-211 and pp. 584-587 (1984).
Kildsig et al., “Theoretical Justification of Reciprocal Rate Plots in Studies of Water Vapor Transmission through Films,” J. Pharm. Sci., vol. 29, pp. 1634-1637 (1970).
Mohler, J.B., “Primer on electrodeposited coatings,” Materials Engineering, vol. 5, pp. 38-45 (1972).
Morgan, P.W., “Structure and Moisture Permeability of Film-Forming Polymers,” Ind. and Eng. Chem., vol. 45, pp. 2296-2306 (1953).
Roff, et al., “Handbook of Common Polymers,” CRC Press, Cleveland Rubber Co., Cleveland, Ohio (72 total pages) (1971).
Rogers et al., “Permeability Valves; Permeability of Gases and Vapors through Composite Membranes,” Ind. and Eng. Chem., vol. 49, pp. 1933-1936 (1957).
International Search Report dated Aug. 7, 2003 (7 pages).
Hall Deanna
Intarcia Therapeutics, Inc.
Sirmons Kevin C.
Trask & Britt
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