Ultrasound assembly for use with light activated drugs

(54) ULTRASOUND ASSEMBLY FOR USE WITH LIGHT ACTIVATED DRUGS

(75) Inventors: Katsuro Tachibana, Fukuoka (JP);

Shunro Tachibana, Fukuoka (JP);
James R. Anderson, Redmond, WA
(US); Gary Lichttenegger,

Woodinville, WA (US)

(73) Assignee: Ekos Corporation, Bothell, WA (US)

( * ) Notice: Subject to any disclaimer, the term ol this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

(21) Appl. No.: 09/620,701

(22) Filed: Jul. 20, 2000

Related U.S. Application Data

(62) Division of application No. 09/158,316, filed on Sep. 21, 1998, now Pat. No. 6,176,842, which is a continuation-inpart of application No. 09/129,980, filed on Aug. 5, 1998, now Pat. No. 6,210,356, which is a continuation-in-part of application No. 08/972,846, filed on Nov. 18, 1997, now abandoned, which is a continuation of application No. 08/611,105, filed on Mar. 5, 1996, now abandoned.

(30) Foreign Application Priority Data

Mar. 5, 1995 (JP) P7-048710

Sep. 19, 1997 (JP) 9-70617

(51) Int. CI.7 A61M 31/00

(52) U.S. CI 604/500; 604/509; 604/522;

604/22

(58) Field of Search 604/21-22, 500,

604/101.01, 101.03, 507-509, 522; 607/97;

601/2, 3; 514/410, 145

(56) References Cited

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DE 40 05 743 8/1991 A61H/23/00

EP 0 529 675 8/1992 A61B/17/06

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OTHER PUBLICATIONS

Hynynen et al.; "Small Cylindrical Ultrasound Sources For Induction ol Hyperthermia Via Body Cavities or Interstitial Implants"; Arizona Cancer Center and Department of Radiation Oncology, University of Arizona Health Sciences Center; vol. 9, No. 2; pp. 263-274; 1993.

(List continued on next page.)

Primary Examiner—Mark Bockelman

(74) Attorney, Agent, or Firm—Knobbe, Martens, Olson &

Bear, LLP

U.S. PATENT DOCUMENTS

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