Hyperthermia apparatus

• US 4,601,296 A
• Filed: 10/07/1983
• Issued: 07/22/1986
• Est. Priority Date: 10/07/1983
• Status: Expired due to Fees

• Current Assignee: Yeda Research and Development Co. Ltd. (Weizmann Institute of Science)
• Original Assignee: Yeda Research and Development Co. Ltd. (Weizmann Institute of Science)
• Inventors: Yerushalmi, Aharon
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US06/540,016
• Time in Patent Office: 1,019 Days
• Field of Search: 128/804, 128/784, 128/786, 128/788, 128/400, 128/401, 128/303.1, 128/736
• US Class Current: 607/156
• CPC Class Codes: A61B 18/18 by applying electromagnetic radiation, e.g. microwaves radiation therapy A61N5/00
• CPC Class Codes: A61B 18/1815 using microwaves
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61N 1/403 for thermotherapy, e.g. hyperthermia

Abstract

Apparatus for hyperthermic treatment of tumors comprising a probe insertable into a body cavity in the vicinity of a tumor to be treated, the probe including a radiation emitting antenna and a conduit system for the passage of a cooling fluid adjacent the outer surface thereof for cooling of tissue lying adjacent the probe.

Claims

1. Apparatus for hyperthermic treatment of tumours in the vicinity of the anal body cavity whereby the cavity mucosa and the cavity walls are cooled while simultaneously heating said tumours, said apparatus comprising:

probe means arranged to be insertable into a body cavity and including;

a housing having forward and rearward surfaces;

radiation-producing antenna means rigidly disposed in said housing; and

cooling conduit means disposed peripherally of said housing and arranged to receive cooling fluid for cooling body tissue disposed in propinquity thereto, said cooling conduit means comprising flexible conduit coiled about the outside forward peripheral suface of said housing, whereby it may be compressed upon insertion into the anal cavity and expanded forwardly of the sphincter muscle when coolant passes therethrough for secure engagement in said cavity, thus retained by the sphincter muscle.

2. Apparatus according to claim 1 and wherein said coiled conduit defines a ribbed outer surface.

3. Apparatus according to claim 1 and wherein said housing defines a relatively broad cross section forward portion and a narrower intermediate portion, said forward portion having said antenna means defined therein and being surrounded by said cooling conduit means.

4. Apparatus according to claim 1 and wherein said probe means also comprises temperature sensing means.

5. Apparatus according to claim 4 and wherein said temperature sensing means comprise means for sensing the temperature at tissue adjacent said probe means along the radiation path between said antenna means and a tumor.

6. Apparatus according to claim 4 and wherein said temperature sensing means comprise means for sensing the temperature in the vicinity of or inside said tumor.

7. Apparatus according to claim 4 and wherein said temperature sensing means comprise means for sensing the temperature within said cooling conduit means.

8. Apparatus according to claim 4 and also comprising means for governing the power radiated by said antenna means in accordance with the temperature sensed by temperature sensing means.