Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1995-04-04
1997-09-02
McDermott, Corrine M.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604265, 604280, 138123, A61M 2500
Patent
active
056626223
ABSTRACT:
An intravascular catheter carries a helical reinforcement member embedded within at least a portion of the tubular wall of the catheter. The helical reinforcement member comprises a helical first portion having coils of greater pitch than the pitch of helical coils of a second portion. Preferably, the catheter is for insertion into brain arteries, and comprises a flexible tube having an outer diameter of no more that about 0.05 inch, for example 3 French or smaller. The flexible tube defines outer and inner tubular layers. The inner tubular layer surrounds a catheter lumen and comprises a chemically inert fluorinated polymer such as PTFE. The outer tubular layer comprises at least three longitudinally spaced, connected tubular sections. The sections are of successively increasing flexibility from the proximal toward the distal catheter end. Also, manufacturing methods are disclosed pertaining to increasing the flexibility of a section of the catheter and joining together in abutting relation a pair of dissimilar catheter reinforcement members.
REFERENCES:
patent: 2437542 (1948-03-01), Krippendorf
patent: 2472483 (1949-06-01), Krippendorf
patent: 3416531 (1968-12-01), Edwards
patent: 4044765 (1977-08-01), Kline
patent: 4100309 (1978-07-01), Micklus et al.
patent: 4516972 (1985-05-01), Samson
patent: 4577543 (1986-03-01), Wilson
patent: 4665604 (1987-05-01), Dubowik
patent: 4690175 (1987-09-01), Ouchi et al.
patent: 4706670 (1987-11-01), Andersen et al.
patent: 4739768 (1988-04-01), Engelson
patent: 4817613 (1989-04-01), Jaraczewski et al.
patent: 4830059 (1989-05-01), Silberstang
patent: 4899787 (1990-02-01), Ouchi et al.
patent: 4955862 (1990-09-01), Sepetka
patent: 5037404 (1991-08-01), Gold et al.
patent: 5279596 (1994-01-01), Castaneda et al.
patent: 5334169 (1994-08-01), Brown et al.
patent: 5358493 (1994-10-01), Schweich, Jr. et al.
patent: 5423773 (1995-06-01), Jimenez
patent: 5437673 (1995-08-01), Baust et al.
patent: 5531715 (1996-07-01), Engelson et al.
patent: B14739768 (1994-11-01), Engelson
Gold Jeffrey G.
Gore Susana M.
Green Nicholas
Mueller Mark
Soltesz Peter P.
Cordis Corporation
McDermott Corrine M.
Stright Jr. Ronald K.
LandOfFree
Intravascular catheter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Intravascular catheter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intravascular catheter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-304027