Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-12-30
1995-06-20
Maglione, Corrine
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604264, 138114, A61M 2500
Patent
active
054257239
ABSTRACT:
An infusion catheter including an elongated catheter body, and an infusion section at its distal end for delivery of therapeutic fluid to bodily passages. The infusion section includes an outer tube and an inner tube concentric with the outer tube, each tube having a multiplicity of ports therethrough. The inner tube delimits a central, fluid delivery lumen. The inner tube is uniformly spaced apart from the outer tube to provide an annular passageway, the radial depth of the passageway being sufficient to permit fluid flow therewithin. Each of the ports through the outer tube provides fluid communication between the annular passageway and the exterior of the catheter, while each of the ports through the inner tube provides fluid communication between the central lumen and the annular passageway. Thus, therapeutic fluid can flow from the central lumen through the annular passageway to the catheter exterior. The catheter provides a uniform average flow rate of therapeutic fluid along the length of the infusion section by (a) providing a higher ratio of inner tube ports to outer tube ports in the distal portion than in the proximal portion of the infusion section, and/or (b) positioning the inner tube ports and outer tube ports relative to one another so that the average fluid flow distance in the annular passageway between the inner tube ports and the outer tube ports is smaller in the distal portion than in the proximal portion of the infusion section.
REFERENCES:
patent: 3384089 (1968-05-01), Shriner
patent: 3426544 (1969-02-01), Curtis
patent: 3601320 (1971-08-01), Du Plessis
patent: 3698195 (1972-10-01), Chapin
patent: 4318402 (1982-03-01), Vaillancourt
patent: 4927418 (1990-05-01), Dake et al.
patent: 4961731 (1990-10-01), Bodicky et al.
patent: 4968306 (1990-11-01), Huss et al.
patent: 4968307 (1991-02-01), Dake et al.
patent: 4995865 (1991-02-01), Gahara et al.
patent: 5021044 (1991-06-01), Sharkawy
S. Mehta et al., "Rational Approach to Intracoronary Thrombolyis," J. Invasive Cardiology 4[6] Jul./Aug. 1992, pp. 306-311.
S. L. Kaufman et al., "Urokinase Thrombolysis Using a Multiple Side Hole Multilumen Infusion Catheter," Cardiovasc Intervent Radiol (1991) 14:334-337.
"The Unique Delivery System", Brochure, Peripheral Systems Group, ACS Co., 1989 (3 pp.).
"A Multiple-Flow Catheter with Multiple Advantages," Brochure, Mallinckrodt, undated (1 p.).
"McNamara Coaxial Catheter Infusion Set", Brochure, Cook, undated (2 pp.).
"Pulse* Spray Pulsed Infusion System", Brochure, Angiodynamics, E-Z-EM, Inc. (Nov. 91) (3 pp.).
"Pulse* Spray Pulsed Infusion System", Brochure, Angiodynamics, E-Z-EM, Inc., undated (28 pp.).
Hicks et al., "Multilevel Infusion Catheter for Use with Thrombolytic Agents," J. Vascular & Interventional Radiology 2 [1] Feb. 1991, pp. 73-75.
Boston Scientific Corporation
Craig Frances P.
Maglione Corrine
LandOfFree
Infusion catheter with uniform distribution of fluids 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 catheter with uniform distribution of fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infusion catheter with uniform distribution of fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1841460