Infusion guidewire having fixed core wire and flexible radiopaqu

Details Infusion guidewire having fixed core wire and flexible radiopaqu Infusion guidewire having fixed core wire and flexible radiopaqu

1995-10-11

2000-02-22

O'Connor, Cary

Surgery

Diagnostic testing

Flexible catheter guide

604 96, 604280, A61B 500

Patent

active

060274611

ABSTRACT:
An infusion guidewire that can be used either as a guidewire or an infusion catheter having an integral, tapered core wire within an infusion lumen formed of the aligned lumens of the conduit of a proximal connector housing, a proximal inner sheath in a proximal guidewire portion and a distal coil wire in a distal guidewire portion. The core wire proximal end is attached to the connector housing, and the core wire distal end is connected to the distal end of the distal wire coil. An outer sheath is attached to the connector housing and formed over the proximal inner sheath and the distal wire coil. A plurality of infusion side holes are formed in a distal infusion segment of the outer sheath in fluid communication with the infusion lumen. At the junction of the proximal inner sheath and the distal wire coil, a radiopaque wire coil of a material having a higher radiopacity than the distal wire coil is formed into a plurality of radiopaque wire coil turns of substantially the same pitch, inner lumen diameter and outer diameter as the distal wire coil. The radiopaque wire coil turns are wound into spacings between adjacent turns of the proximal wire coil such that the wire coils and the inner coil lumens are substantially co-axially aligned and maintained in alignment by the inner and outer sheathes.

REFERENCES:
patent: 3841308 (1974-10-01), Tate
patent: 4464176 (1984-08-01), Wijayrathna
patent: 4538622 (1985-09-01), Samson et al.
patent: 4748986 (1988-06-01), Morrison et al.
patent: 4917104 (1990-04-01), Rebell
patent: 4922924 (1990-05-01), Gambale et al.
patent: 4932419 (1990-06-01), de Toledo
patent: 4955862 (1990-09-01), Sepetka
patent: 5174302 (1992-12-01), Palmer
patent: 5178158 (1993-01-01), de Toledo
patent: 5184627 (1993-02-01), de Toledo
patent: 5211636 (1993-05-01), Mische
patent: 5322508 (1994-06-01), Viera
patent: 5554114 (1996-09-01), Wallace et al.
patent: 5569197 (1996-10-01), Helmus et al.
patent: 5624396 (1997-04-01), McNamara et al.
patent: 5626564 (1997-05-01), Zhan et al.
patent: 5640970 (1997-06-01), Arenas
"Products for Regional Thrombosis" brochure of Meditech (Boston Scientific Corp.) 1992 (7 pages).
T. McNamara M.D. et al., "Coaxial system improves thrombolysis of ischemia", Diagnostic Imaging, pp. 122-131, Nov. 1991.

Affiliated with

Also associated with

Rating

Infusion guidewire having fixed core wire and flexible radiopaqu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Infusion guidewire having fixed core wire and flexible radiopaqu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infusion guidewire having fixed core wire and flexible radiopaqu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-516669