Radioactive Seeds

Radioactive Seeds

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Best® Iodine-125 & Palladium-103

  • Patented Double Wall Titanium Encapsulation with uniform wall thickness
  • Tungsten Marker – excellent images of source in Ultrasound, X-ray, Fluoro, CT and MRI – for superiority to other commercially available sources.
  • Source Calibration to NIST1999 Calibration, revised for 2000
  • Sources and spacers are the same length (5mm nominal) and diameter (0.8mm nominal), fitting the Mick catridge snugly.
  • Custom-made high quality spacers and Mick cartridges provided at no cost
  • Sources can be provided as loose seeds; loaded in needles with spacers, sterile; loaded in strands, sterile; preloaded in Mick cartridges

5mm Seeds, 5mm Spacers

  • Sources and spacers are the same length (5mm). Double wall encapsulation and uniform wall thickness with superior dose distribution. Consistent quality, and seeds fit Mick cartridges.
  • Excellent visualization with Ultrasound, X-ray, Fluoro, CT and MRI. Real time dosimetry possible with Best® seeds.
  • Complies with AAPM’s dosimetric prerequisites.

Iodine-125

Single Needle with Single Source Part Numbers

Part # Description
10172-2 I-125 Loose Source (single) in 18 Gauge x 10cm Needle
10172-5 I-125 Loose Source (single in 18 Gauge x 15cm Needle
10172-8 I-125 Loose Source (single) in 18 Gauge x 5cm Needle
10172-11 I-125 Loose Source (single) in 18 Gauge x 7cm Needle
10172-14 I-125 Single Source in Strand in 18 Gauge x 5cm Needle
10172-17 I-125 Single Source in Strand in 18 Gauge x 7cm Needle
10172-20 I-125 Single Source in Strand in 18 Gauge x 10cm Needle
10172-23 I-125 Single Source in Strand in 18 Gauge x 15cm Needle

Breast Localization Needles with Iodine-125 Seeds

Part # Description
10172-8 5 cm length
10172-11 7 cm length
10172-02 10 cm length
10172-05 15 cm length
  • Available in all ranges of seed activities (0.08 to 0.4 mCi) with a shelf life of 90 days.
  • Needles are supplied sterile and are individually packaged and shielded.
  • Best localization needles with Iodine-125 seeds are FDA approved.

Sterile & Non-Sterile Iodine-125 Seed Products

Part # Description
10113-1  I-125 Loose Source (non-sterile)
10113-21  I-125 Loose Source (sterile)
10165-1  I-125 Stylets in Tubes
10165-3 I-125 Strands in Needles (in a plastic tray)
10165-4 I-125 Loose Source in Needles (in a plastic tray)
10165-17 I-125 Loose & Stranded Sources in Needles (in a plastic tray)
10113-23 Cartridge with I-125 Sources (non-sterile)
10113-11 Cartridge with I-125 Sources (sterile)
10176-13 Best Cartridge with I-125 Sources
10117-5 Reusable Cartridge with I-125 Sources
10120-1 I-125 Strands in Needles (in Best new tray)
10120-3  I-125 Loose Source in Needles (in Best new tray)
10120-5 I-125 Loose & Stranded Sources in Needles  (in Best new tray)

Paladium-103

Sterile & Non-Sterile Seed Products

Part # Description
15113-1 Loose Pd-103 Source (non-sterile)
15113-11 Vial w/ Pd-103 Sources in a Pouch (sterile)
15165-1 Pd-103 Strands (in a pack)
15165-4 Needle with Pd-103 Loose Sources Assembly (in a plastic tray)
15165-9 Needle with Pd-103 Sources in Strands Assembly (in a plastic tray)
15165-11 Needle with Pd-103 Loose Sources & Strands Assembly (in a plastic tray)
15113-13 Pd-103 Sources in a Cartridge (non-sterile)
15113-14 Pd-103 Sources in a Cartridge (sterile)
15180-1 Needle with Pd-103 Loose Sources Assembly (in Best tray)
15180-3 Needle with Pd-103 Sources in Strands Assembly (in Best tray)
15180-5 Needle with Pd-103 Loose Sources & Strands Assembly (in a tray)
  • Patented double wall titanium encapsulation with uniform wall thickness
  • Best® custom strand (per your prescription)
  • Best® standard strand (10 seeds/strand spaced 1 cm apart)
  • Best® real-time strand/needle (use our loader in the OR)
  • Best® seeds and spacers in pre-loaded needles
  • Cartridges
  • Loose seeds

Best® Iridium-192 & Gold-198

Ir-192 Seeds in Nylon Ribbons (Part #118)

Range of Activity 0.1 to 10 mg Raeq per Seed
Seed Dimension 3.0mm Long x 0.5mm Diameter
Emisson Energy 370 keV (average) Gamma Energy
0.1 mm Diameter Core of 30% Iv & 70% Pt Surrounded by 0.2mm Thick Stainless Steel Wall
Physical Characteristics 1. Half-life 74.3 Days
2. HVL (50% attenuation) About 3mm Lead
3. Specific Gamma Ray Constant 4.6 R cm2/mCi/hr
Custom Spacing Available

Gold-198 Seeds in Nylon Ribbons (Part #557)

Range of Activity  0.1 to 10 mCi per Seed
(4.7 mCi of Gold-198 is Equal to 1 mCi of Radon)
Seed Dimension 2.5mm Long x 0.8mm Diameter
Emisson Energy 420 keV (average) Gamma Energy
Construction Metallic Gold Pellet Encapsulated in Platinum
Physical Characteristics 1. Half-life 2.7 Days
2. HVL (50% attenuation) About 4mm Lead 
3. Specific Gamma Ray Constant 2.35 R cm2/mCi/hr
Custom Spacing Available
  • We are the only one to provide comparative calibration data traceable to NIST, Washington, DC, University of Wisconsin, K&S Associates, and M.D. Anderson Hospital, Houston, TX, for the past 15 years, which indicates excellent quality control.
  • We are the only supplier of LDR Iridium-192 and Gold-198 seeds.
  • We are the only provider of Iridium-192 in nylon ribbons in a wide range of activities.
  • We are the only one to provide custom services for Gold-198 permanent implants, as well as a wide range of activities.
  • We are the first and only one to call our customers the morning after shipping to inform them of mode of transportation and expected arrival time.

Cobalt-57 Nuclear Medicine Products

Best Medical International now offers durable highly uniform Co-57 Flood Sources for gamma camera quality control. Common rectangular and round configurations are available from inventory, as well as custom sizes. All Flood Sources are measured to ensure a coeffi cient of variation of less than 1% and certified in accordance with ANSI N42.27-1999. Each Flood Source is provided in a shielded storage case.

Rectangular Co-57 Flood Sources

Part # Case Size
5302-2416-10*-S With Case 24" x 16"
5302-2416-15*-S With Case 24" x 16"
5302-2416-20*-S With Case 24" x 16"
5302-2416-10* Without Case 24" x 16"
5302-2416-15* Without Case 24" x 16"
5302-2416-20* Without Case 24" x 16"
5302-1814-5*-S With Case 18" x 14"
5302-1814-10*-S With Case 18" x 14"
5302-1814-15*-S With Case 18" x 14"
5302-1814-20*-S With Case 18" x 14"
5302-1814-5* Without Case 18" x 14"
5302-1814-10* Without Case 18" x 14"
5302-1814-15* Without Case 18" x 14"
5302-1814-20* Without Case 18" x 14"
5302-1610-5*-S With Case 16" x 10"
5302-1610-7.5*-S With Case 16" x 10"
5302-1610-10*-S With Case 16" x 10"
5302-1610-5* Without Case 16" x 10"
5302-1610-7.5* Without Case 16" x 10"
5302-1610-10* Without Case 16" x 10"
5302-1111-5*-S With Case  11" x 11"
5302-1111-10*-S With Case  11" x 11"
5302-1111-5* Without Case  11" x 11"
5302-1111-10* Without Case  11" x 11"

Round Co-57 Flood Sources

Part # Case Size
5303-18-10*-S With Case 18" diameter
5303-18-15*-S With Case 18" diameter
5303-18-20*-S With Case 18" diameter
5303-18-10* Without Case 18" diameter
5303-18-15* Without Case 18" diameter
5303-18-20* Without Case 18" diameter
5303-24-10*-S With Case 24" diameter
5303-24-15*-S With Case  24" diameter
5303-24-20*-S With Case  24" diameter
5303-24-10* Without Case  24" diameter
5303-24-15* Without Case 24" diameter
5303-24-20* Without Case 24" diameter

Other flood sizes available upon request

Dose Calibrator Vials

  • Part # 5301-1-5 (Co-57)*
  • Part # 5301-1-10 (Co-57)*
  • Part # 5301-2-100 (Cs-137)*
  • Part # 5301-2-200 (Cs-137)*

Markers and Rulers

  • Part # 5304-50 (Co-57)*
  • Part # 5304-100 (Co-57)*
  • Part # 5304-200 (Co-57)*
  • Part # 5305-100 (Co-57)*
  • Part # 5305-200 (Co-57)*
  • Part # 5306-230 (Co-57)*
  • Part # 5306-460 (Co-57)*
  • Part # 5307-80 (Co-57)*
  • Part # 5306-100 (Co-57)*