Mfr/Model #Turns ID Mean OD Overlap Wire Size Angle ------------------------------------------------------------------------------- Magstim 70 mm 9x2 5.2 cm 7.0 cm 8.8 cm 0.0 cm 1x7 mm 0 deg Medtronic MC-B70 10x2 2.4 cm 6.6 cm 10.8 cm 4.2 cm 3.5 mm (#8) 34.5 deg MagVenture CoolB70 11x2 2.3 cm 5.95 cm 9.6 cm ?3.6 cm 3x12 mm? 30.0 deg MagVenture MC-B70 10x2 2.7 cm 6.2 cm 9.7 cm ?3.5 cm 3x6 mm? 30.0 deg Sam #13 8+9 3.13 cm 5.72 cm 8.26 cm 2.5 cm 2.6 mm (#10) 30.0 deg Sam #14 10x2 2.9 cm 6.8 cm 10.5 cm 3.4 cm 3.18 mm Tube 30.0 deg
Calculations show the overlapped configuration to have more localization and a slightly higher peak field and dB/dt for the same inductance.
Coil Winding Data Inner diameter 24 mm Outer diameter 108 mm Wire cross-section: 3.5 mm Number of windings 2 x 10 Thickness of plastic chassis between coils and head 2 mm.
In the coil center the windings of the two wings overlap. Next to the overlap, the windings of the left and right wings are bent by an angle of 18.5 and 16 degrees, respectively.
Mechanical Properties: Weight of transducer head: 2.9 kg. Cable length: 1.3 m. Dimensions of transducer head: 180 x 116 x 45/64 mm. Angulated: 150 degrees. Coil Winding Data: Inner diameter: 23 mm. Outer diameter: 96 mm. Winding height: 12 mm. Number of windings: 2 x 11. Magnetic and Electrical Properties: Max initial dB/dt: 28 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations, before warm-up at ambient temperature of 20 °C wotj output of 75% of maximum at 2 pps: >20.000 pulses. Number of stimulations, before warm-up at ambient temperature of 20 °C with protocol: 60 trains at 50 pulses/train at 10 pps with inter-train interval of 25 s and output = 75%: >10.000 pulses.
Mechanical Properties: Weight of transducer head: 1.1 kg. Cable length: 1,7 m. Dimensions of transducer head: 169 x 112 x 16/33 mm. Coil Winding Data: Inner diameter: 27mm. Outer diameter: 97mm. Winding height: 6mm. Number of windings: 2 x 10. Magnetic and Electrical Properties: Max initial dB/dt: 31 kT/s near the coil surface. Active pulse width: 280 us (Biphasic). Performance Number of stimulations before warm-up at ambient temperature at 20 °C with mean output 75% of maximum at 1 pps: 400 pulses. Ordering Number: 9016E0564.
Mechanical Properties: Weight of transducer head: 600 g. Cable length: 1.5 m. Dimensions of transducer head: 103 x 55 x 18 mm. Coil Winding Data: Inner diameter: 24 mm. Outer diameter: 47 mm. Winding height: 9 mm. Number of windings: 2 x (3X4). Magnetic and Electrical Properties: Max initial dB/dt: 50 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature at 20 °C with mean output 75% of maximum at 1 pps: 75 pulses. Ordering Number: 9016E0671
Mechanical Properties: Weight of transducer head: 700 g. Cable length: 1.7 m. Dimensions of transducer head: 165 x 85 x 19 mm. Coil Winding Data: Inner diameter: 35 mm. Outer diameter: 75 mm. Winding height: 11 mm. Number of windings: 2 x (2 x 5). Magnetic and Electrical Properties: Max initial dB/dt: 35 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature at 20 °C with mean output of 75% of maximum at 1 pps: 350 pulses. Ordering Number: 9016E0482.
Mechanical Properties: Weight of transducer head: 900 g. Cable length: 1.7m. Angle: 120 degrees. Coil Winding Data: Inner diameter: 67 mm. Outer diameter: 95 mm. Winding height: 12 mm. Number of windings: 2 x (3+4). Magnetic and Electrical Properties: Max initial dB/dt: 31 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations, before warm-up at ambient temperature of 20 °C with mean output of 75% of maximum at 1 pps: 500 pulses. Ordering Number: 9016E0431.
Mechanical Properties: Weight of transducer head: 0.7 kg. Cable length: 2 m (B65-HO-2). 8 m (B65-HO-8). Dimensions of transducer head: 162 x 85 x 22 mm. Coil Winding Data: Inner diameter; 35 mm. Outer diameter: 75 mm. Winding height: 11 mm. Number of windings: 2x (2 x 5). Magnetic and Electrical Properties: Max initial dB/dt: 25 kT/s near the coil surface. Active pulse width 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature of 20 °C with mean output 75% of maximum at 1 pps: 350 pulses. Ordering Number: 9016E0462 (2m). 9016E0472 (8m).
Mechanical Properties: Weight of transducer head: 1.5 kg. Cable length: 2 m. Dimensions of transducer head: 174 x 94 x 53 mm. Coil Winding Data: Inner diameter: 35 mm. Outer diameter: 75 mm. Winding height: 12 mm. Number of windings: 2x (2 x 5). Magnetic and Electrical Properties: Max initial dB/dt: 32 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature of 20 °C with mean output of 75% of maximum at 1 pps: 2000 pulses. Ordering Number: 9016E0423.
Mechanical Properties Weight of transducer head: 2.5 kg. Cable length: 1.3 m. Angle: 150 degrees. Dimensions of transducer head: 180 x 116 x 46/64 mm. Coil Winding Data: Inner diameter: 23 mm. Outer diameter: 96 mm. Winding height: 12 mm. Number of windings: 2 x 11. Magnetic and Electrical Properties: Max initial dB/dt: 28 kT/s near the coil surface. Active pulse width 280 µs (Biphasic). Performance Number of stimulations before warm-up at ambient temperature of 20 °C with mean output of 75% of maximum at 1 pps: 5500 pulses. Protocol: 60 trains at 50 pulses/train at 10 pps with inter-train interval of 25 s with output of 75%. (Total number of stimulations = 3000). One protocol can be performed without overheating the coil. Minimum cooling time between protocols: 2.5 hours at 20 °C or 1 hour at 7 °C. Ordering Number: 9016E0401.
Mechanical Properties: Weight of transducer head: 1.2 kg. Cable length: 1.3 m. Dimensions of transducer head: 113x65x42 mm. Coil Winding Data: Inner diameter: 10 mm. Outer diameter: 46 mm. Winding height: 15 mm. Magnetic and Electrical Properties: Max initial dB/dt: 50 kT/s near the coil surface. Active pulse width: 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature of 20 °C with mean output of 100% of maximum at 1 pps: 150 pulses. Number of stimulations before warm-up at ambient temperature of 20 °C with mean output of 75% of maximum at 1 pps: 300 pulses. Ordering Number: 9016E0681.
Mechanical Properties: Weight of transducer head: 1.7 kg. Cable length: 1.3 m. Dimensions of transducer head: 174 x 94 x 41 mm. Coil Winding Data: Inner diameter: 35 mm. Outer diameter: 75 mm. Winding height: 12 mm. Number of windings: 2 x (2 x 5). Magnetic and Electrical Properties: Max initial dB/dt: 36 kT/s near the coil surface. Active pulse width 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature of 20 °C with mean output of 75% of maximum at 2 pps: >20.000 pulses. Number of stimulations, before warm-up at ambient temperature of 20 °C with protocol: 60 trains at 50 pulses/train at 10 pps with inter-train interval or 25 s at output of 75%: >10.000 pulses. Ordering Number: 9016E0491.
Mechanical Properties: Weight of transducer head: 1.8 kg. Cable length: 1.3 m. Dimensions of transducer head: Diameter: 2 x 110mm. Thickness 30mm. Angle: 120 degrees. Coil Winding Data: Inner diameter: 67 mm. Outer diameter: 95 mm. Winding height: 12 mm. Number of windings: 2 x (3+4). Magnetic and Electrical Properties: Max initial dB/dt: 31 kT/s near the coil surface. Active pulse width 280 µs (Biphasic). Performance: Number of stimulations before warm-up at ambient temperature of 20 °C with output of 75% of maximum at 2 pps: >20.000 pulses. Number of stimulations before warm-up at ambient temperature of 20 °C with output of 75%, protocol: 60 trains at 50 pulses/train at 10 pps and inter-train interval of 25 sec: >10.000 pulses. Ordering Number: 9016E0531.
Coil Winding Data Inner diameter 52 mm Outer diameter 88 mm Winding height 7 mm Wire cross-section: 7x1 mm Number of windings 2 x 9 Thickness of plastic chassis between coils and head 3 mm.
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