• Ultrasound compatible
• Highly durable replaceable tissue for multiple uses
• Fluid can be left clear or be colored if desired
• Ability to increase or decrease the size of effusion with up to 60 cc of fluid
• Realistic tactile feedback includes: 

Sensation of bony contact if the needle hits the patella

Sensation of bony contact if the needle hits the femur

Inability to aspirate the syringe while the needle tip is in the soft tissue superficial to the joint capsule

Easy aspiration of joint fluid into the syringe once entry has been achieved

• Learn to ballot or milk the suprapatellar pouch
• Needle aspiration and injection techniques
• Palpating anatomic landmarks significant to the procedure
• Realistic tactile feedback throughout procedure