| US 7,547,302 B2 | ||
| Anti-microbial catheter | ||
| James Dal Porto, Coto de Caza, Calif. (US); Jose Castillo Deniega, Lake Forest, Calif. (US); Roger Massengale, Mission Viejo, Calif. (US); Kenneth W. Rake, Laguna Niguel, Calif. (US); Lois Rake, legal representative; Kevin Forrest, Rancho Santa Margarita, Calif. (US); and Mark Siminuk, Lake Forest, Calif. (US) | ||
| Assigned to I-FLOW Corporation, Lake Forest, Calif. (US) | ||
| Filed on Aug. 31, 2005, as Appl. No. 11/216,534. | ||
| Application 11/216534 is a continuation in part of application No. 10/436457, filed on May 12, 2003, granted, now 7,452,353. | ||
| Application 10/436457 is a continuation in part of application No. 10/435946, filed on May 12, 2003. | ||
| Application 10/435946 is a continuation of application No. 10/031913, previously published as PCT/US00/19746, filed on Jul. 19, 2000. | ||
| Application 10/031913 is a continuation in part of application No. 09/363228, filed on Jul. 19, 1999, granted, now 6,350,253. | ||
| Prior Publication US 2006/0135941 A1, Jun. 22, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A61M 25/00 (2006.01) | ||
| U.S. Cl. 604—523 | 18 Claims |
| 1. A catheter for delivery of fluid, comprising:
an elongated tube having a uniform outer diameter and a plurality of exit holes provided along a length of said tube to define
an infusion section of said catheter, said tube being sized to be inserted into an anatomical region; and
an elongated member positioned within said tube and having a wall formed of a porous material configured to allow a fluid
introduced into said catheter to diffuse longitudinally within said wall of said elongated member until said porous material
is saturated and the fluid begins to pass through said wall, wherein said porous material is configured to control a rate
of fluid flow through said elongated member, said catheter configured such that a fluid introduced into a proximal end of
said tube will flow through said exit holes;
a ring-shaped adhesive bond filling a space between, and adhering together, a radially outward-facing surface of said elongated
member and a radially inward-facing surface of said tube, said ring-shaped adhesive bond located at or near the proximal end
of said infusion section such that said plurality of exit holes are located distally of said ring-shaped adhesive bond, said
ring-shaped adhesive bond configured to substantially prevent fluid introduced within said elongated tube from entering said
infusion section without first passing through said elongated member;
wherein at least one of said tube and said elongated member incorporates an anti -microbial substance and is configured for
the sustained release of said anti-microbial substance into said fluid.
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