PERCUTANEOUS CATHETER AND
GUIDEWIRE HAVING FILTER AND
MEDICAL DEVICE DEPLOYMENT
 Inventors: Ross S. Tsugita, Mountain View; Tracy D. Maahs, Redwood City; Yue-Teh Jang, Fremont, all ol Calil.
 Assignee: SciMed Life Systems, Inc., Maple Grove, Minn.
[ * ] Notice: This patent issued on a continued prosecution application filed under 37 CFR 1.53(d), and is subject to the twenty year patent term provisions ol 35 U.S.C. 154(a)(2).
 Appl. No.: 09/421,138  Filed: Oct. 19, 1999
Related U.S. Application Data
 Continuation of application No. 09/287,217, Apr. 5, 1999, which is a continuation of application No. 09/022,510, Feb. 12, 1998, Pat. No. 5,910,154, which is a continuation of application No. 08/852,867, May 8, 1997, Pat. No. 5,911, 734.
 Int. C I. A61M 29/00
 U.S. C I 606/200
 Field of Search 606/200, 159,
606/195, 198, 191
 References Cited
U.S. PATENT DOCUMENTS
4,723,549 2/1988 Wholey et al 128/344
The invention provides a nested tubing cannula which comprises outer and inner elongate tubular members, both having a proximal end, a distal end, and a lumen therebetween. The inner tubular member is sealed at its distal end and is nested substantially coaxially within the lumen ol the outer tubular member, so that the gap between the inner and the outer tubular member defines a second lumen whereas the first lumen is the lumen ol the inner tubular member. A tubular sleeve is disposed coaxially between the inner and outer tubular members. A balloon is mounted on a distal region ol the outer tubular member and is in communication with the first lumen. The cannula further comprises a port proximal or distal the balloon occluder and is in communication with the second lumen. Methods for making the devices herein are disclosed.
14 Claims, 17 Drawing Sheets