Injection pen plunger

Abstract

1. Name of the product in this design: Push rod of an injection pen. 2. Purpose of this design: This design is installed inside an injection pen to push the medicine bottle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: The top view structure is clearly shown in the enlarged top view, so the top view is omitted. The structure of the bottom view is clearly shown in the enlarged bottom view, so the bottom view is omitted.

Images