Matrix Thermoshield™ Material in 50 cc Syringe

The Matrix Thermoshield™ patented shield is manually moldable thermoplastic material when heated in a water bath. Matrix Thermoshield™ protects healthy tissues while allowing treatment to the exact treatment field during therapy. It may be quickly and repeatedly molded, adapted, shaped, stacked, or thinned directly on the patient at any time during therapy, thereby increasing treatment accuracy and decreasing clinical construction times.

Features:
•  This material can be reshaped, readapted, thickened or thinned
   making it particularly adaptable for sensitive anatomy.
•  Provides a time-saving factor as customized shields can be
   constructed in approximately 20 minutes.
•  Provides a linear attenuation coefficient of approximately 34% of
   elemental lead.
•  Eliminates fabrication of shields from plaster cast, cerrobend block
   or amorphous toxic leaded clay.
•  Homogenous mix of hydrocarbon and bismuth particles provides
   uniform radiodensity.
•  Material is non-toxic and biocompatible.
•  Available with an “open” portal.
•  Easily moldable to anatomic detail.
•  Can be disinfected with glutaraldehyde spray (i.e. Cidex).
•  Moldable at 108°- 138°F and becomes rigid at 102°F.
•  Retains its shape and thickness for the course of treatment or can
   be modified if needed.

Usage:
Clinically, the shield is warmed in a water bath to 123° -128°F and molded to the healthy patient anatomy to protect it from electron or photon radiation during therapy. The shield sets at approximately 102°F and is removed from the patient. The shield is now rigid for accurate anatomic detail and can be placed repeatedly for multiple radiation sessions.

Specifications:
The only constituent used in the production of thermoplastic radiation shield is an FDA and ADA approved dental hydrocarbon impression compound for intro-oral usage and elemental bismuth-100 mesh, which is not absorbed through the skin. The thermoplastic dental compound and bismuth are blended in a volume ratio of approximately 66:33. The manufacturing process bonds the dental compound to the bismuth to produce the dense thermoplastic radiation shield.

Dimensions:
Slabs: 8 x 8 cm or 12 x 12 cm
Thickness: 13 or 16 mm
Syringes: 50 cc
Portal diameter: 2.5 cm

Color: Brown
Odor: Chocolate

Environmental Factors:
Matrix Thermoshield™ will maintain proper performance with normal use under the least favorable of the following conditions:
A. Ambient temperature range of 59°F to 95°F
B. Relative humidity range of 30% to 75%, including condensation
C. Atmospheric pressure range of 700 hpa to 1100 hpa

Matrix Thermoshield™ will not be adversely affected for up to 15 weeks while      
packed for transport or storage or if exposed to:
A. Ambient temperature range of -40°F to 234°F
B. Relative humidity range of 10% to 100%, including condensation
C. Atmospheric pressure range of 500 hpa to 1060 hpa

Single patient use.
Not Sterilized.

The syringe of Hydrocarbon only (thermoplastic without bismuth; specific gravity of 1.66) can be used to fabricate a backscatter elctron shield on a Matrix Thermoshield™ shield.

Product Description:

• Hinged cover lifts to 90° stay-open position or can be removed completely.
• Unit’s exterior remains cold to the touch to prevent accidental burns, even after extended use
• Temperature resistant plastic rim fits over seamless stainless-steel reservoir for a leak-free seal
• Stainless-steel exterior shell resists corrosion and has a tough enamel coating that cleans easily
• Rounded, seamless stainless steel reservoir resists rust and contamination.
• Hinged clear acrylic gable cover has fins to protect hands from hot vapors.

Operation:

• Temperature range from ambient to 100°C.
• Independent high-limit thermostat provides over-temperature protection.

Digital Operating System:

• PID control provides ± 0.24°C uniformity, ± 0.5°C stability, and ± 0.1° C control at 37° C.
• Digital temperature set and readout selectable display, resolution of 0.1°
• Able to be calibrated in the field.

Radiation Products Design, Inc     763-497-2071    Fax 763-497-2295     www.rpdinc.com          sales@rpdinc.com