United States
US 12,702,758 B2
Torsion spring mechanism for medicament delivery device, and medicament delivery device comprising said mechanism
US 12,702,758 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-11. Applicant: SHL MEDICAL AG. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- SHL MEDICAL AG
- Inventors
- Joakim Lindholm
- Publication date
- 2026-08-11
- Filing date
- 2023-05-09
- Document type
- B2 Granted patent
- Also written as
- US 12,702,758 B2 · US12702758 · 12702758
Abstract
A mechanism having a base structure; a plunger rod movable along a longitudinal axis; a driver rotatable about the longitudinal axis and engaging the plunger rod; a torsion spring connected to the driver and to the base structure, the torsion spring being arranged to rotationally drive the driver; and at least one support part arranged to support the torsion spring in a lateral direction; wherein the mechanism has at least one rotational interface between the driver and the base structure; and wherein the at least one rotational interface is positioned at between 0.5% and 99.5% of a length of …
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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