BSD-2000
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another weapon in the fight against cancer The BSD-2000 Hyperthermia System (BSD2000) is used to deliver therapeutic heating (hyperthermia) to cancerous tumors by the use of radiofrequency (RF) energy. During a treatment, the cancerous tumor is heated to 40 and 45°C (104 -113 °F). Hyperthermia damages cells in solid tumors, without damaging normal tissues, because higher temperatures selectively damage cells that are hypoxic and have low pH, a condition of tumor cells and not a condition of normal cells. Hyperthermia has been shown to inhibit cellular repair mechanisms, induce heat-shock...

BSD-2000 Hyperthermia System BSD-2000 System Description Power Delivery Subsystem The BSD-2000 consists of four major subsystems. • Solid-state amplifier with 4-channel independent phase and amplitude adjustment capability. • RF power delivery subsystem. • Maximum power output of 0 to 500 watts per channel. • Proprietary, thermistor-based, thermometry subsystem. • Phase accuracy within a 10 degree tolerance. • Computerized monitoring and control subsystem. • Applicator subsystem that includes an applicator and patient support system. • Computer automatically monitors and controls forward...

Computer Control System • User friendly, intuitive, color graphics interface. • Step-by-step guide for setup and treatment procedure. • Icon selectable adjustments of the treatment parameters. • Tabs allow operator to easily switch between screen displays. • Closed -loop feedback system provides automatic monitoring and control of treatment parameters, including power output, frequency, amplitude and phase, tissue temperatures, core temperature, and treatment time. Sigma Treatment Base Unit with Applicator Applicator and Patient Support System • System automatically records, displays, and...

Applicator Subsystem • Advanced annular phased array principles create a central focusing of energy, which significantly overcomes the penetration losses of the energy radiated into the body. The Sigma applicators (Sigma 60 and Sigma Ellipse) are annular phased array applicators that are comprised of a clear plastic shell, 8 radiating dipoles, and a bolus membrane. The Sigma 60 uses a cylindrical shaped plastic shell to support the 8 radiating dipoles. The Sigma Ellipse is an elliptically shaped plastic shell used to support the same components used in the Sigma 60. The Sigma Ellipse...

Site Planning Our site-planning specialists will be happy to assist you in finding the ideal layout for your environment. The installation manual includes specifications for building services, electricity, air conditioning, and other relevant factors. An enclosed RF shielded treatment area (not supplied by BSD as part of the BSD-2000) is required for use with the BSD-2000 in order to comply with FCC regulations. A standard hyperthermia treatment area consists of an RF shield enclosed treatment room (which contains the patient interface components), the operator room for installation of the...

patients died prior to three years. For the BSD ITT population, 29/33 (88%) of the RT+HT arm had CR, as compared to 18/32 (56%) of the RT arm with a CR, for an odds ratio=0.1773 (95% confidence interval 0.0504, 0.6235) and the difference between treatments was statistically significant (p=0.006, Fisher exact test). This result corresponds to a much lower failure rate in the RT + HT subjects. Clinical Studies A Phase III randomized study was conducted at Erasmus Medical Center – Daniel den Hoed Cancer Center (DHCC), Rotterdam, The Netherlands, to compare hyperthermia (HT) and radiation (RT)...

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