The Technology
The Science behind RF energy
System specifications

The Synergo System is a computer-embedded intravesical irrigation system combined with an energy-delivering unit. The System includes an RF generator that delivers radio-frequency (radiation) energy at 915 MHz, a drug circulating unit, and a microprocessor with application specific software.
The user interface consists of a computer, monitor with touch screen, keyboard, and bar-code reader. Application specific software monitors and records treatment parameters during an actual session and provides a user interface that instantly alerts the user if parameters are out-of-range.
A sterile triple lumen, silicone, transurethral Foley catheter is used for drug intravesical instillation. It has thermocouples for bladder wall temperature monitoring, and an RF antenna that radiates the bladder walls, , causing phenotypical changes specifically in cancerous cells, creates membrane “micro-poring” (“Tunelling Nano-Tubes”) and metabolic changes in these cells to increase the uptake of the drug, enhances drug mobility (becomes an active diffusion) through Foucault currents, and last but not least, generates heat at the target tissue at the desired, controlled temperature (hyperthermia) which is a synergistic protagonist.

Hyperthermia is being used in many medical fields. For hyperthermia to take place, one ought to know that a certain area/tissue reaches target temperature, and it is imperative to monitor these on the target tissue. Since we are not aiming at killing cancer cells alone with heat but rather reach the synergistic range where we potentiate the chemo-instillation, we need to reach an effective 42+-2 degrees centigrade.
Synergo uses a unique combination of local microwave energy with simultaneous instillation of cooled chemotherapeutic drug. The target of the welcomed byproduct of RF radiation is hyperthermia and our goal with hyperthermia is to reach effective temperature inside the tissue to enable higher drug penetration and accelerate drug-DNA reactions.
Tissue heating should be adjusted per patient and dynamically maintained during treatment while the tissue temperature is constantly measured and closely followed.
Conduction is governed by the Boltzmann equation: Heat conduction is proportional to a constant K which cannot be changed: (for example: Kfat=0.2, Kmuscle=0.38, Ksilver=420)
Since the bladder wall acts as a good thermal insulator, heat penetration from heated liquid is not efficient (conduction/convection heating). On the other hand, during microwave heating the energy is absorbed directly deep in the tissue to enable efficient homogeneous heating, real-time measurement and follow-up on the tissue temperature (as confirmed on 5 different locations in a Synergo treatment) and dynamic adjustment of the transmitted energy for each patient over time (e.g. when blood flow in tissue is increased due to heating).*
Warm liquid does not allow any simple adjustments in order to tailor heating per patient over time (e.g. different patients have different blood circulation, different tissues, dynamic changes that occur over time such as vasodilation etc.)
Moving from hot liquid to microwave radiation in the Synergo systems was based on previous experience, as well as on articles already published by other researchers.More importantly, it has been recently discovered that RF radiation in itself is a key protagonist in treating cancer. Not only do the drugs molecules diffuse actively by the Foucault currents associated with RF radiation (giving a higher probability of DNA-drug bonding at any given second), but cancer cells also change their characteristics, and also their ability to repair themselves. Their membranes become “pored” (by Tunelling Nano-Tubes) and this enables an increased uptake of drug molecules, which remain in the cells, as their metabolism has been altered as well (once again increasing the probability of reaction).
*These have been submitted to and recently approved by the FDA.

System Model: SYNERGO® SB-TS 101

Catheter System

Bio-compatible, single-use, 20F, silicone, custom-made, loaded with antenna and thermocouples

Drug Circulating Unit

Tubing Line PVC, single-use with reservoir
Heat Exchanger Temperature controlled

Peltier system

Pump Peristaltic (variable flow)

RF Generator

Frequency 915 MHz (+ 50 KHz)
Maximum Power 60 Watts


Thermometry System

Sensors T-type thermocouples
Resolution 0.1°C  (0.18°F)


Personal Computer

Model Pentium 100 and above
Monitor 15” SVGA
Input Devices Membrane keyboard and touch-screen


Version 9.29 and above A.29 and above

Power Requirements

Supply Voltage 115 and 230 VAC
Frequency 50 / 60 Hz
Line Regulation + 10%
Maximum Peak Current 5 Amp (230 VAC)
Fuses 6.3 AT 6.3x32 mm



Forced air cooling

Environmental Requirements

Temperature Range Operation: 

15 – 35°C  (59 – 95°F)
Storage: 10 – 40°C  (50 – 104°F)
Humidity Range 45 – 75%
Atmospheric Pressure 700 – 1060 hPa



European Medical Device Directive 93/42/EEC


European Medical Device Directive

(93/42 EEC) Class IIa
IEC 601-1

Class I – Type B and BF with defibrillation protection

Compliance with Standards General – Electrical – Mechanical

EN 60601-1:1993, EN 60601-1-4:1996

Electromagnetic Compatibility

EN 60601-1-2:1993, EN 55011: class A,
IEC 1000-4-2 (at 3 and 8 kV),
IEC 1000-4-3 (level 2, 3 V/m),
IEC 1000-4-4, IEC 1000-4-5
Graphic Symbols & Alarms

IEC 878 (1998), EN 980 (1997)

Synergo RITE for Bladder Cancer

Synergo® RITE Model 2015

Synergo® RITE Model 2001