Neurovascular Solutions German HQ: Gutleutstraβe 163-167, 60327 Frankfurt am Main, Germany China HQ: No.3 Yayingshi Road, Huangpu District, Guangzhou 510663, P.R.China Medprin Group: www.medprin.com PRODUCT PORTFOLIO Facilitating Efficient Intervention

60% of whom received master's degree and doctorate Medprin Biotech GmbH CONTENTS 1,600,000+ Products used to save lives Global patent applications Global trademark registrations • EasyMax™ Long Sheath 2 • EasyMax™ Pro Long Sheath 3 • EasyRadial™ Access Catheter 6 • Easyport™ Distal Access Catheter 7 • Speedpass™ Aspiration Catheter 8 ABOUT MEDPRIN Medprin (301033.SZ), founded in 2008, is a global medical device company dedicated to the development and manufacturing of high-performance implantable medical technologies. Driven by a strong R&D foundation, Medprin has built a diversified portfolio...

EasyMax™ Long Sheath • Decreasing outer diameter • Multi-bevelled connection • 10cm Hydrophilic coating • Keep 6F coaxial system • Complex lesions with multi microcatheters Excellent Kink Resistance • Patented dual-coil design in middle layer • Excellent resistance to deformation Minimum Bending Radius Comparison Products Specification Model Soft section Length(cm) Working Length(cm) * The smaller bending radius is, the better kink resistance is.

Thinner Wall and Smaller Outer Diameter • 6F ID: 0.088" OD: 0.010" • Keep 6F coaxial system • Complex lesions with multi microcatheters Products Specification Access

Good Torqueability • Patented Polymer-in Dual Core Technique • Core-to-tip design • Enhanced tactile feedback Shape Curve and Retention • 3mm nitinol flattened core tip • Easy to shape 2mm curve Pushability and Advancement • Proximal stainless steel core • Durable hydrophilic coating Enhanced Visibility • Dual radiopaque with platinum-nickel spring & tungsten-containing jacket Polymers Stainless steel coil Platinum-nickel coil Torque control comparison Torque transmission Products Specification Hydrophilic coating (40cm) * Laboratory data, for reference only

EasyRace™ Angiographic Catheter Luer Proximal Support Unique Triple-Curve Design User-friendly Length • 125 cm and 132 cm • Easy to operate through radial access Products Specification Model Unique Curve Design • Facilitate Turn Over technique and super selection Excellent Support • More 80% than the traditional • More conducive to the transradial access

EasyRadial™ Access Catheter Multiple Models and Compatibility • 6F ID: 0.071″ 7F ID: 0.079″ • Anterior and posterior circulation through ipsilateral and contralateral access Good Navigation • Target C3/V2 above • Unique braiding technique • Smooth transition crossability and kink resistance • ‘Single catheter treatment’ Safety and Smooth Delivery Enhanced Support on the Aortic Arch • 50 cm hydrophilic coating • Covering from the intracranial to brachial artery • Double-strand braiding • Up by 60% in support compared with DA catheter • Kink resistance Easy Radial™ Intermediate Catheter Guiding...

Distal length Working length Products Specification In the bench test, when push or retract the catheter, the force fluctuation of Easyport is smaller than that of the control group A, which is 50%-75% better

Navigation and Trackability • 12-section bevelled connection • Easy to pass the thrombus Anti Negative Pressure and Kink Resistance • Patented coil with braiding reinforced technique Excellent negative pressure resistance Test description: The catheter is connected to the aspiration pump through a pressure extension catheter to stimulate clinical use. The aspiration pressure is set to normal to begin with, and increased to the maximum value (-28.5 in Hg) than maintained for 30s to observe shape retention capability. Excellent kink resistance The optimized braiding and coil design provide excellent...

Thinner Wall with Bigger Lumen & Stronger Aspiration Good NavigationPatented bevelled connection - 13g|0.68"catheter The larger inner lumen, the stronger aspiration Complete Revascularization:M1 Occlusions(IOmm) ( PASS 1 ) RBC-Rich Mixed Fibrin-Rich RBC-Rich Mixed Fibrin-Rich Durability and Kink Resistance Patented coil with braiding reinforced technique Excellent Navigation and Safe Operation Navigating Ml of MCAGood crossability in tortuous vessel as shown in the multi-type ophthalmic artery simulationSmaller OD with Lower Risks of Vessel Damages Products Specification Model

Catheter design Rated burst pressure (atm) TimG-saving and UsGr-friGndly • Red tip easier to operation and identification • 30 cm rapid exchange design • Hydrophilic coating • Semi-compliant balloon • Good re-folding technique Semi-compliant rapid exchange (Rx) balloon catheter Maximum compatible guidewire (inch) Recommended guide catheter (Fr.) Proximal shaft outer-diameter (Fr.) Distal shaft outer-diameter (Fr.) Rapid exchange length (Rx)

Easycess Aspiration Pump Negative pressure indicator Excellent Stability• Keep negative pressure 98kpa continuously, thrombus capture at a glance Product Specifications Specification Outer Diameter

Acute Ischemic Stroke Long Sheath ID 0.088″ with Compatibility Navigation and Trackability Excellent Kink Resistance Bigger Lumen with Stronger Aspiration Excellent Navigation Durability and Kink Resistance Much User-Friendly Good Compatibility Easycess™ Aspiration Pump Excellent Stability Great Safety Speedpass™ Aspiration Catheter Navigation and Trackability Large Lumen with Thin Wall Easyport™ Distal Access Catheter Large Lumen with Compatibility Easytork™ Guidewire Shape Curve and Retention Good Torqueability Enhanced Visibility Anti Negative Pressure and Kink Resistance Kink Resistance and...