Microwave hyperthermia probe

Details Microwave hyperthermia probe Microwave hyperthermia probe

1991-07-26

1993-03-02

Cohen, Lee S.

Surgery

Body protecting or restraining devices for patients or infants

Restrainers and immobilizers

128784, 219 1055F, A61N 502

Patent

active

051900548

ABSTRACT:
Heating pattern uniformity is provided in a coaxial microwave hyperthermia probe by varying the open area in the outer conductor in an axial direction such that there is a maximum open area in the axial center portion. The variations may be provided by winding an outer conductor in a helical pattern with a variable pitch or by cutting openings of axially varying size in a solid outer conductor. The invention is applicable to both flexible and rigid probes.

REFERENCES:
patent: 4583556 (1986-04-01), Hines et al.
patent: 4601296 (1986-07-01), Yerushalmi
patent: 4658836 (1987-04-01), Turner
patent: 4662383 (1987-05-01), Sogawa et al.
patent: 4825880 (1989-05-01), Stauffer et al.
patent: 4841988 (1989-06-01), Fetter et al.
Li et al, "Design . . . Microwave Applicator . . . ", Int. J. Rad Onc Biol. Phys, vol. 10, pp. 2155-2166, Nov. 1984.
Wu et al, "Performance Characteristics . . . hyperthermia", Med. Phys, 14(2), Mar./Apr. 1987, pp. 235-237.

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