Enabling the best subcutaneous therapy


Meet D-Flex, the next-generation pen system for subcutaneous self-injection. Bridging the gap between fixed and variable-dose pens, this innovative product also paves the way for connected commercial devices.

The D-Flex is a major step towards greater comfort and independence for patients.

Just one pen for many needs

Disposable pen for fixed or variable dosage

The versatile solution

Allows manual, multiple injections with a single pen

Safe to use for patients

Easy dose correction to avoid injection errors, unintended dosage and loss of drug

Perfect for clinical trials

Easy adaptation to different dose requirements

Therapy efficiency

Allows connectivity and smart data management

Low investment cost

Allows product development on existing, novel platform

Let´s create the future of connected solutions

Meet our new platform of injection systems and connected solutions. Allowing smart data management for therapy efficiency, offering great opportunities to develop customized solutions for clinical studies and supporting a fast way to connected commercial devices.

  • Areas of care

  • Areas of care

  • Areas of care

  • Areas of care

Diabetes GLP-1

Haselmeier offers pen solutions that support safe and efficient self-injection of GLP-1 – helping diabetes patients to manage their condition, and so aiding efforts to reduce costs and improve quality of care.

Diabetes Insulin

Haselmeier offers customizable injection pens and platform solutions that help type 1 and type 2 diabetes patients to self-administer insulin, promoting better compliance and more effective treatment.


We support convenience and compliance in osteoporosis treatment. The D-Flex pen can significantly improve therapy efficiency, allowing patients to treat themselves safely and discreetly on a long-term basis.


Haselmeier's customizable pen solutions are suitable for use in some areas of oncology, supporting quality of care in this growing clinical domain. The solutions could improve patients' quality of life and create a basis for reliable and successful therapy at home.

Let's talk about your customized injection pen

As a reliable partner, we develop customized solutions for our clients and are always interested in new challenges.