Flow directed catheter with hydrophilic distal end

Details Flow directed catheter with hydrophilic distal end Flow directed catheter with hydrophilic distal end

1995-03-07

1997-02-11

Green, Randall L.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 93, 604264, 604265, A61M 2500

Patent

active

056015380

ABSTRACT:
A flow directed catheter (2) includes a hollow catheter body (4) having a distal section (16) constructed of a hydrophilic material. The hydrophilic distal section, typically a hydrogel, has an equilibrium water content of about 80% water by mass when hydrated. The hydrophilic distal section is soft and supple but substantially inelastic and tough enough to permit use of guide wires to help direct the catheter through difficult areas (27) and also allow a wide range of therapeutic agents to be delivered to the target site (32, 34, 36). Both the inside and outside surfaces of the catheter body can be made lubricious by surface modification or by application of a secondary, lubricious coating.

REFERENCES:
patent: 3557780 (1971-01-01), Sato
patent: 3995623 (1976-12-01), Blake
patent: 4024873 (1977-05-01), Antoshkiw
patent: 4379874 (1983-04-01), Stoy
patent: 4563181 (1986-01-01), Wijayarantha
patent: 4696304 (1987-09-01), Chin
patent: 4771777 (1988-09-01), Horzewski
patent: 4774366 (1988-10-01), Jang
patent: 4813934 (1989-05-01), Engelson
patent: 4848344 (1989-07-01), Sos
patent: 4863442 (1989-09-01), DeMello
patent: 4886506 (1989-12-01), Lovgran
patent: 4888364 (1989-12-01), Graiver
patent: 4943618 (1990-06-01), Stoy
patent: 5061254 (1991-10-01), Karakelle
patent: 5091205 (1992-02-01), Fan
patent: 5147370 (1992-09-01), McNamara
patent: 5171221 (1992-12-01), Samson
patent: 5209727 (1993-05-01), Radisch, Jr.
patent: 5225120 (1993-07-01), Graiver
patent: 5308342 (1994-05-01), Sepetka
patent: 5318032 (1994-06-01), Lonsbury
patent: 5336205 (1994-08-01), Zenzen et al.
"Preparation of transparent poly(vinyl alcohol) hydrogel", S. H. Hyon, W. I. Cha, Y., Ikada. Polymer Bulletin 22, 119-122 (1989). Research Center for Medical Polyers and Biomaterials, Kyoto University, Sakyoku, Kyoto, Japan.

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