OptiMedvo Launches 4ml Dual-Chamber Step-Lock Pen Injector

OptiMedvo Launches 4ml Dual-Chamber Step-Lock Pen Injector

HANGZHOU, CHINA – OptiMedvo (Hangzhou Medvo Co., Ltd.), a leading global pen injector manufacturer and developer of clinical-grade solutions, has officially announced the launch of its next-generation 4ml Dual-Chamber Cartridge Step-Lock Injection Pen System. Engineered specifically for highly unstable biologics, peptides, and sensitive proteins, this commercial-ready system is designed to streamline freeze-dried drug administration while meeting the strict scalability demands of global pharmaceutical packaging.

As biopharma pipelines increasingly pivot toward high-concentration and large-volume molecules-including GLP-1 receptor agonists, Human Growth Hormone (HGH), and specialized fertility therapies-traditional small-capacity devices often hit mechanical and physical volume limitations. OptiMedvo's new 4ml Cartridge Injection Pen effectively addresses this market gap.

Overcoming the Complexity of Large-Volume Reconstitution

For decades, medical packaging companies and pharmaceutical brands struggled to secure a reliable, large-volume device capable of safely managing freeze-dried powder alongside its solvent. Manual reconstitution remains highly prone to dosing inaccuracies, compromised sterility, and structural degradation of sensitive macromolecular formulations.

OptiMedvo's system redefines the reconstitution workflow by integrating immediate preparation and high-precision dosing into a single, closed-loop mechanical framework. Paired with a premium 4ml dual-chamber cartridge featuring a highly efficient middle bypass channel, the device enables the freeze-dried powder and liquid solvent to mix uniformly within seconds without any external exposure.

Advanced Mechanical Architecture: The Step-Lock Safety System

The core technical differentiator of this new system lies within its proprietary A/B/C 3-stage rotational step-locking mechanism. Unlike continuous-thread models or push-to-mix dual-chamber pens that can yield unstable hydraulic pressure, OptiMedvo's multi-depth rotational design forces a strictly managed, three-step user workflow:

Stage A (Safe Reconstitution Lock): Controls the initial mechanical advancement, channeling the liquid solvent through the bypass to initiate instant, uniform mixing under a completely sealed, needle-free condition.

Stage B (Air Purge Ready): Mechanical alignment that prompts the user to easily and safely exhaust any trapped air bubbles before the actual delivery sequence.

Stage C (Precision Dosing Lock): Instantly engages the internal high-precision drive system, transitioning the structure into a ready-to-inject state that complies fully with ISO 11608 standards.

This design drastically reduces human error, protects the drug's therapeutic bioactivity, and ensures a superior patient compliance record during self-administration.

B2B Customization & Integrated DDS Supply Chain Support

Recognizing that modern combination products require precise alignment with brand portfolios and diverse therapeutic categories, OptiMedvo offers robust B2B customization capabilities alongside mass manufacturing scalability. Through their comprehensive Tailored Branding program, global buyers can customize:

Pen body shell colors and aesthetic finishes.

Corporate or drug-specific logo placements.

Customized dial elements, dosage scales, and micro-fine graduation lines.

Furthermore, the system is flexible across commercial lifecycles, available as either a Reusable variant (replaceable dual-chamber cartridge to support cost-effective chronic therapies) or a Disposable variant (pre-filled, single-use architecture for maximum patient convenience).

"We do far more than manufacture premium hardware," stated the head of global B2B operations at OptiMedvo. "We provide end-to-end Advanced Drug Delivery Systems integration. From validating Container Closure Integrity (CCI) using premier Type I borosilicate glass cartridges to providing full technical documentation support for global regulatory filings, our goal is to streamline our partner's path to market."

Availability and Request for Evaluation Samples

The 4ml Step-Lock Pen and its accompanying dual-chamber glass cartridges are now open for commercial integration and clinical-phase co-development. Regulatory technical files are accessible to authorized pharmaceutical integration teams under strict NDA.

To review device-drug compatibility data, schedule a technical consultation, or request product samples, contact the OptiMedvo specialist team directly via email at sales@optimedvo.com or visit the official B2B interface at https://www.optimedvo.com/.