Reliable Ablation Within Your Reach
Principle & Benefits of Microwave Ablation
Microwave ablation (MWA) is a minimally invasive therapy for unresectable tumors in various organs, including liver, lung, thyroid, breast, kidney and uterus. With image guidance, a thin needle called a microwave ablation antenna is inserted into the tumor. The emitted microwave energy heats the tumor quickly. When the temperature reaches up to 60°C, the tumor cells lead to death via coagulation necrosis. At the same time, it has minimal impact on normal surrounding organs.
Compared with existing thermal ablation therapies, the benefits of microwave ablation include bigger ablation zones, faster ablation speed, and more approach options, including percutaneous, laparoscopic, bronchoscopic, and open surgical access.
Microwave Ablation System - Generator
- User-friendly Interface
- Ensuring simple and convenient operation
- Multiple Temperature Control
- Ensuring safety in various clinical procedures
- Non-magnetized Processing Technology*
- Ensuring safe and convenient use with MRI guidance
- Reliable & Cost-effective
- Making it accessible to more healthcare profession-als & patients
Microwave Ablation System – Catheter
Flexibility
Facilitating clinical usage for varicose veins and electro-magnetic navigation-guided bronchoscopic pulmonary nodules
Thinner Diameter
Minimum diameter 1.8mm to meet vairous ablation requirements
Reliable & Predictable Ablation Performance
- In order to evaluate Dewen microwave ablation performance, the following experiments were performed with ex-vivo pork liver and raw egg white by one single antenna.
- Ablation Volume Size Length (X) x Width (Y) in mm;
- X=Length of ablation volume in the antenna axis direction;
- Y-Width of ablation volume in the antenna vertical direction;
- D=Distance from the distal point of ablation volume to the antenna tip.
MW Ablation Volume Size¹
Time 30 W 40 W 50 W 60 W
3 Min 25×22 27×24 28×25 31×28
MW Ablation Volume Size²
Power 3 MIN 5 MIN 7 MIN
60 W 33×30 37×32 40×36
MW Ablation Volume Size³
Time 40 W 50 W 60 W 70 W 80 W
10 Min 24×24 28×28 30×30 32×32 35×35
A single 15G microwave ablation antenna was used in the standard laboratory environment with fresh pork liver. Certain ablation size may vary in clinical practices.
A single 14G microwave ablation antenna was used in the standard laboratory environment with fresh pork liver. Certain ablation size may vary in clinical practices.
3 A single 14G spherical microwave ablation antenna was used in the standard laboratory environment with fresh pork liver. Certain ablation size may vary in clinical practices.
A single 14G spherical antenna was used in the standard laboratory environment with fresh pork liver. Certain ablation size may vary in clinical practices.
A single 14G spherical antenna was used in the standard laboratory environment with fresh raw egg white. Certain ablation size may vary in clinical practices.
Ablation Performance in Clinical Practice
Therapy: Ultrasound-guided MWA on primary HCC
Patient History Record: M, Y-45, Chronic infection with hepatitis B (HBV) for over 20 years. Lesion size 2.0x1.8cm on right upper lobe with CT-scan. Primary HCC diagnosed with ultrasound and MRI.
Clinical Result: 2 MWA antennas were inserted in the lesion with ultrasound guidance. One antenna was placed in the upper side of lesion, and another antenna was placed in the lower side of lesion. The lesion was fully ablated to coagulation necrosis with contrast ultrasound. A ablation zone of 4.5×4.2cm was confirmed after 1-week follow-up, and it was fully covered the lesion area. In addition, and a safe margin up to 1cm was kept. The expected curative MWA goal was achieved.
Ordering Information
Microwave Ablation Generator
REF. # Frequency Energy Output Time Setting Dimension
DW- M5T 2450 MHz 0-100 W 0-30 Min 360×395×135 mm
Disposable Microwave Ablation Antenna
REF. # Frequency Diameter Active Tip Length
DW-XR-I11 2450 MHz 17 G 3 mm 100 mm
DW-XR-I12 2450 MHz 17 G 5 mm 180 mm
DW-XR-I13 2450 MHz 16 G 3 mm 100 mm
DW-XR-I14 2450 MHz 16 G 5 mm 180 mm
DW-XR-I15 2450 MHz 15 G 5 mm 150 mm
DW-XR-I16 2450 MHz 15 G 5 mm 180 mm
DW-XR-I17 2450 MHz 14 G 5 mm 150 mm
DW-XR-I18 2450 MHz 14 G 5 mm 180 mm
DW-XR-I19 2450 MHz 14 G 5 mm 270 mm
Disposable Microwave Ablation Catheter
REF. # Frequency Diameter Active Tip Length
DW-DG-I1 2450 MHz 1.8 mm - 1100 mm
DW-DG-I2 2450 MHz 2.2 mm - 1200 mm
DW-DG-I3 2450 MHz 2.2 mm - 1200 mm
Accessories
REF. # Name Packing Unit
DW-T-I1 Disposable Temperature Probe 1 Pcs/Box
- Foot Switch 1 Pcs/Box
- Medical Trolley 1 Set/Case
- 26-inch Hard-sided Carrying Case 1 Set/Case
