Disetronic Licensing Ag

Roche Diagnostics International Ag

Susanne Barkhahn

Andreas Reinmann

Marcel Hunn

An injection needle assembly including an injection needle, which can pierce body tissue, and a needle guide, which can be placed on the body tissue and axially stabilizes the injection needle against flexure and cracking.

Injection needle assembly comprising an injection needle and a needle guide

A cannula, for introduction into a body tissue, the cannula flexible after introduction, and rigid below a critical temperature and flexible above the critical temperature. In a method for the introduction of the cannula into the body tissue, the cannula is cooled to a temperature below the critical temperature and introduced into the body tissue. After being introduced, the cannula is brought to a temperature above the critical temperature by warming and thus becomes flexible.

Temperature-sensitive cannula

An injection needle, for injection into a body tissue, is flexible in the introduced or post-inserted state and comprises a channel for the introduction of a fluid. The injection needle is at least partly made from at least one material which is rigid in one state and flexible in a second state. Alternatively or concurrently, the injection needle is rigid on application of a force to the needle along the longitudinal direction of a needle longitudinal axis and is flexible on application of a force in the radial direction relative to the needle longitudinal axis.

Growing community of inventors

Bern, Switzerland

Susanne Barkhahn