Jet injectors for medical use; Medical fluid injectors; Medical instruments and devices, namely, external fixators; Oxygen inhalators for medical use, sold empty; Portable medical devices used for breathing exercises, namely, portable devices used for endogenous breathing exercises and for respiratory muscle training; Medical devices, namely, devices for measuring wounds; Medical device, namely, carbon dioxide indicators; Medical devices, namely, pulse oximeters; Medical instruments, namely, biosensors for detecting infectious diseases