Superficial Hyperthermia

A versatile, fully self-contained treatment system in a mobile configuration or maximum treatment flexibility of superficial tumors within 1″ of skin surface.

BSD‑500 Features
BSD‑500 Features
  • Portable
  • No shielding room needed
  • FDA Approved for palliative treatment of certain tumors
  • Delivers both superficial and interstitial hyperthermia
24″ Medical Grade Touch Screen Monitor

High resolution monitor providing easy access to user control systems for improved patient monitoring and system control.

Ease of Operation

MA-151 Wave Guide Applicator

MA-151: mini-dual ridge wave guide applicators have an aperture of 4 x 5 cm and individual heating patterns approximately 2.5 x 2.5 cm by 2 cm deep. Advanced annular phased array principles create a central focusing of energy, which reduces the penetration losses of the energy radiated into the body.

MA-100 Wave Guide Applicator

MA-100: side loaded wave guide applicators have a 10 × 13 cm aperture and a heating pattern approximately 8 × 10 cm by 2.5 cm deep.

Wave Guide Applicator

MA-120: side-loaded wave guide applicator has an 18 × 24 cm aperture and a heating pattern of approximately 12.5 × 19.5 cm by 2.5 cm deep.

Interchangeable Superficial Applicators

Applicators available in multiple configurations to treat a range of tumor sizes and locations.

Focused Treatment Area

5-Point Pneumatic Applicator Arm

Provides rock-steady placement of Hyperthermia applicators at any angle with a total reach of 104 cm (41″).

Solid Performance

8-port Temperature Monitoring

Track up to 8 independent temperature probes for accurate thermal dosing. Motorized system allows for superior zone mapping. An integrated thermal well ensures easy and accurate temperature calibration of the temperature probes.

Thermal Monitoring

Probe Calibration

The Thermal Calibration Well can be used to quickly verify probe accuracy prior to treatment

Ease of Use

Brachytherapy Treatment Support

Interstitial hyperthermia delivers heat directly to the site of the tumor via brachytherapy catheter. The microwave power delivered to the antennas (available as an optional kit) can be adjusted in amplitude and phase to conform the heating pattern to the tumor.


MA-251 Microwave Interstitial Antenna

The semi-rigid MA-251 microwave interstitial applicators can be inserted into 15.5 gauge (5 French) radiation implant catheters. The heating pattern is ellipsoidal and approximately 4.5 cm in length along the applicator shaft with heating to the applicator tip.


The BSD‑500 offers two USB ports for the offloading of patient records and keyboard/mouse. The system includes a wireless color printer. (model subject to change)

915 MHz Eight-Channel Power Amplifier

915 MHz Eight-Channel Power Amplifier Multi-channel solid state amplifier producing an available 480 Watts of RF power, (60 watts per channel) independently adjustable phase and amplitude.

Focused Power

Water Circulation System

Provides constant volume water supply to the Applicator Bolus with temperature range of 5 °C to 45 °C.

RF Depth Control


Solid State Generator

The BSD‑500 microwave hyperthermia system is equipped with a 915 MHz power generator. The solid state generator has 8 channels which can be independently adjusted in phase and amplitude.

Up to 24 Interstitial Applicators

The 8 channel generator feeds into a 3 way power splitter allowing up to 24 applicators to be connected. Each antenna produces a radiant energy zone that can be arranged to shape a heat zone specific to the tumor.

Up to 400 watts

The system itself is portable, space efficient and produces up to 400 watts of microwave energy in a single channel mode and up to 60 watts per channel in the eight channel mode. A high resolution touch-screen display is used for treatment planning, setup and monitoring during the procedure.

Treats Recurrent Cancer

Superficial hyperthermia is used to non-invasively treat recurrent or progressive cancerous tumors located within a few centimeters of the surface of the body. Interstitial hyperthermia is used to treat recurrent or progressive cancerous tumors located below the skins surface.

MA-151- Small Wave Guide

MA-100 - Med. Wave Guide

MA-120 - Med. Wave Guide

MA-251 Interstitial Antenna

The semi-rigid MA-251 microwave interstitial applicators can be inserted into 15.5 gauge (5 French) radiation implant catheters. The heating pattern is ellipsoidal and approximately 4.5 cm in length along the applicator shaft with heating to the applicator tip.

No Shielding Required

Output frequency of 915 MHz (ISM frequency, requires no RF shielded enclosure) 8 independent channels deliver 0 to 60 watts of power. The forward power of all 8 channels are monitored, controlled and displayed by the computer.

Synchronous or Asynchronous

The computer will monitor and display the reflected power for each channel. In the synchronous mode, all 8 channels are driven by the same signal.

Controlled Phase Offset

The asynchronous mode allows each channel to be driven by independent sources. The power balance and phase offset of each channel is software controlled using the touch screen monitor.

Channel Multiplexer

All eight channels can be multiplexed into a single output channel of 0 to 400 watts under computer control. The forward and reflected power from each of the 8 channels are summed together and displayed as total power.

Water Circulation System

Constant volume water supply.
Bolus temperature controller with a temperature range of 5 °C to 45 °C


Integrated thermal well.
Standard NBS traceable temperature probe accurate within 0.10 °C.


115 - 230 VAC ± 10 %, 50 - 60 Hz
Current consumption <15 amps

Four Sensors

Four sensors are provided with the basic system. The interface accepts up to 8 sensors. A typical treatment set-up would utilize 12 to 15 ports for the microwave interstitial applicators and 1 to 4 ports for connections to the temperature sensors.

Non-Metallic Leads

Temperatures are displayed with resolution of 0.1 °C. - CK Inherently stable thermistor type sensors with non-metallic leads. These sensors are not perturbed by the microwave fields generated in the BSD‑500 system.

Fits 15.5ga Catheter

The sensor diameter is approximately 1.1 mm and is located at the end of a 33 cm (13 in.) sealed high resistive lead.

Low Leakage

An extension cable is provided with a length approximately 2.1 m (7ft). Leakage currents are guaranteed to be less than 15 micro amps for any type of failure.

Treatment Planning Software

Performing interstitial hyperthermia requires the use for the BSD‑500 built-in treatment planning program. Using this software, the size and shape of the tumor can be traced on a grid on the computers screen. Treatment plans can ten be made by simulating the placement of antennae in and around the tumor. The power and phase of each channel can be set and adjusted on the screen. Each change in placement, power or phase will display the new simulated heating pattern.

Trace tumor and position applicators

Calculate energy distribution pattern

Adjust phase and power to achieve desired heating pattern

Transfer settings to hyperthermia treatment screen