Electrode device for high frequency thermotherapy apparatus

• US 4,993,430 A
• Filed: 08/25/1989
• Issued: 02/19/1991
• Est. Priority Date: 01/06/1987
• Status: Expired due to Fees

• Current Assignee: Omron Tateisi Electronics Co. (Omron Corporation)
• Original Assignee: Omron Tateisi Electronics Co. (Omron Corporation)
• Inventors: Miki, Akitoshi, Shimoyama, Jun
• Primary Examiner(s): Cohen, Lee S.
• Application Number:
  US07/398,496
• Time in Patent Office: 543 Days
• Field of Search: 128/784, 128/788, 128/804, 128/401
• US Class Current: 607/99
• CPC Class Codes: A61N 1/06 for high-frequency therapy

Abstract

The disclosed electrode device for high frequency thermotherapy apparatus comprises a base member; a cavity-inserted cylindrical body removably fixed to the base member and inserted into a cavity of a living body; a separator fixed to the base member and arranged in the cylindrical body, for partitioning a space within the cylindrical body into two; an electrode arranged at an end of the separator; and in particular a circulation passage for a cooling liquid being formed extending from a going path, through an end space, to a return path within the cylindrical body. Therefore, the surface of the living body in contact with the cylindrical body can be efficiently cooled by circulating a cooling liquid therethrough to protect the surface of the living body from being heated excessively. Further, the cavity-inserted cylindrical body can be replaced or removed for washing to realize a sanitary medical treatment.

Claims

1. An electrode device for high frequency thermotherapy apparatus, comprising;

(a) a base member having a cooling liquid charge port and a cooling liquid discharge port;

(b) a cavity-inserted cylindrical body removably fixed to said base member under liquid-tight conditions;

(c) a separator fixed to said base member and arranged in said cavity-inserted cylindrical body along the longitudinal direction thereof, partitioning a space within said cavity-inserted cylindrical body into a first and a second space except for an end space thereof, said first space communicating with said charge port and said second space communicating with said discharge port, said separator comprising a flat liquid passage partition plate having a width substantially equal to an inner diameter of said cavity-inserted cylindrical body coupled to a flat liquid charge/discharge partition plate fixed to said base member having a width substantially equal to an inner diameter of said base member;

(d) an electrode arranged at one of said separator extending into said end space; and

(e) a circulation passage for a cooling liquid being formed extending from said first space via said end space to said second space.

2. An electrode device for high frequency thermotherapy apparatus according to claim 1, wherein the liquid passage partition plate and the liquid charge/discharge partition plate are separate pieces which are coupled together.