MUMBAI, India, Aug. 24 -- Intellectual Property India has published a patent application (202517077593 A) filed by Suzhou Healthy Tree Medical Technology Co. , Ltd on August 14, 2025, for Injection Pen And Dose Adjustment Mechanism Thereof.
Inventors include Xiong, Changyan; Li, Huashun; and He, Sixian.
The application for the patent was published on August 21, 2026, under issue no. 34/2026.
Abstract: Provided are an injection pen and a dose adjustment mechanism thereof. The dose adjustment mechanism comprises a knob, a stop bracket, and a torsion spring bracket. The knob can drive the stop bracket to rotate relative to the torsion spring bracket. The stop bracket is provided with a cantilever, and the torsion spring bracket is provided with an inner ratchet ring. The cantilever is in a unidirectional rotation fit with the inner ratchet ring in a direction of adjusting the dose. The knob is provided with an arm part located on an outer side of the cantilever. The knob can also rotate relative to the stop bracket so as to switch between a first position and a second position. In the first position, the knob can directly drive the stop bracket to rotate in the direction of adjusting the dose, and the cantilever is in a unidirectional rotation fit with the inner ratchet ring. In the second position, the arm part compresses the cantilever inwards in a radial direction, such that the cantilever is separated from the inner ratchet ring. The knob can directly drive the stop bracket to rotate in a direction opposite to adjusting the dose. By the structural optimization, the present disclosure reduces the return force of the knob assembly, such that the knob assembly can be reversely rotated upon the overadjustment of the dose.
Disclaimer: Curated by HT Syndication.
