Single-Button Skin Puncture Device for Diabetic Blood Sampling

The patent combines multiple control functions into a single integrated button mechanism. The button simultaneously controls lancet ejection, depth regulation, and safety locking, eliminating the need for separate controls for each function. This merging of functions directly reduces device complexity while maintaining ease of operation for diabetic patients.

The single button serves multiple purposes: it acts as a safety lock, a depth regulator, and an ejection trigger. This multi-functional design allows one component to replace what would traditionally require multiple separate controls, simplifying the user interface while preserving complete device functionality.

The patent merges multiple control operations into a single button press sequence. Instead of requiring separate interactions for safety engagement, depth selection, and lancet ejection, the unified button mechanism consolidates these into one intuitive interaction flow, reducing the number of user actions required.

The button mechanism is pre-configured with spring-loaded components and cam surfaces that automatically perform intermediate actions. When the user presses the button, preliminary spring tension and mechanical linkages automatically execute depth regulation and safety disengagement before the final ejection action, reducing the cognitive and physical burden on the user.

The patent incorporates spring elements and friction-based locking mechanisms that provide built-in safety margins. The spring-loaded button requires a specific force threshold to activate, preventing accidental ejection, while friction locks ensure the lancet remains securely positioned during depth adjustment. These cushioning mechanisms maintain reliability despite the simplified single-button interface.

The mechanical design uses self-locking features and spring-return mechanisms that automatically maintain safe states without user intervention. The button automatically returns to its locked position after use, and the lancet positioning system self-regulates through cam surfaces and friction contacts, reducing the need for complex control systems while maintaining operational reliability.