Drug Delivery Spring Element with Rigid Transverse Connections

The patent merges the spring windings with rigid transverse connections to form an integrated structure. The connections permanently couple consecutive windings, creating a unified element that reliably propagates spring force while preventing radial deformation. This merging resolves the contradiction by making the complex connected structure the core solution rather than an add-on.

The spring element is segmented into discrete windings connected by rigid transverse connections. This segmentation allows each winding to be formed and positioned independently, then permanently coupled to adjacent windings. The segmented approach enables controlled complexity where connections are strategically placed only where needed to prevent radial deformation, rather than requiring a completely different manufacturing process.

The patent applies local quality by differentiating the treatment of windings along the spring element. Most windings remain free to compress and extend, maintaining operational flexibility. However, the end winding is locally modified with a rigid transverse connection to prevent radial movement and sliding. This localized intervention preserves overall spring functionality while ensuring end winding stability.

The patent applies preliminary action by positioning the rigid transverse connection on the end winding in a location that anticipates and distributes mechanical tensions. Rather than placing the connection at the most vulnerable point where tension concentrates, it is positioned to spread the load across multiple windings. This preliminary structural arrangement prevents connection breakage under operational loads while maintaining radial stability.