Surgery – Controlled release therapeutic device or system – Implanted dynamic device or system
Reexamination Certificate
2006-04-28
2011-12-27
Sirmons, Kevin C (Department: 3767)
Surgery
Controlled release therapeutic device or system
Implanted dynamic device or system
C604S131000, C604S132000, C604S151000, C604S153000, C604S288010, C604S288040, C604S500000, C604S502000, C604S890100, C604S093010, C073S149000
Reexamination Certificate
active
08083730
ABSTRACT:
An implantable medical device for delivering a therapeutic substance including a housing and a volume sensor assembly. The housing includes a stationary wall and maintains a reservoir containing the therapeutic substance and including a base wall movable relative to the stationary wall such that reservoir volume is a function of a spacing between the base wall and the stationary wall. The volume sensor assembly includes a cap, a shaft, a target, and circuitry. The cap defines a passage extending from an open end, and is mounted to the stationary wall such that the open end is open relative to a stationary wall inner face. The shaft has a first end attached to the base wall and a second end maintaining the target otherwise movably arranged within the passage. The circuitry generates information indicative of a longitudinal position of the target relative to the cap, and thus of the reservoir volume.
REFERENCES:
patent: 4386716 (1983-06-01), Buck
patent: 4772263 (1988-09-01), Dorman et al.
patent: 5090234 (1992-02-01), Maresca et al.
patent: 5507737 (1996-04-01), Palmskog
patent: 5974873 (1999-11-01), Nelson
patent: 6210368 (2001-04-01), Rogers
patent: 6286377 (2001-09-01), Benke et al.
patent: 6305381 (2001-10-01), Weijand et al.
patent: 6669909 (2003-12-01), Shvets et al.
patent: 6755814 (2004-06-01), Wieland et al.
patent: 2003/0090263 (2003-05-01), Heinrich et al.
patent: 2004/0087894 (2004-05-01), Flaherty
patent: 2005/0075624 (2005-04-01), Miesel
patent: 2005/0187515 (2005-08-01), Varrichio et al.
patent: 2006/0089619 (2006-04-01), Ginggen
patent: 2007/0255260 (2007-11-01), Haase
A PCT Search Report mailed Apr. 4, 2007 (12 pgs.).
Dicke Billig & Czaja, PLLC
Medtronic Inc.
Patel Shefali
Sirmons Kevin C
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