Disposable injection pen
Single-use pen platforms engineered for clinical and pharmaceutical programmes with adjustable dose dials and laser-marked scales.
- Adjustable dose dial
- Smooth injection force
- Clear laser-marked scale
Vertically Integrated Injection Device Manufacturing
Better Devices. Healthier Lives.
From precision mold to assembled, inspected delivery — we build injection pens, glass ink cartridges and injection pen cases in one Zhengzhou plant for distributors, pharmaceutical companies and medical institutions worldwide.
15,000m²
Manufacturing facility
Mold shop, molding hall, cleanroom assembly and packaging under one roof.
100K class
Cleanroom assembly
Class 100,000 controlled environment for device assembly and inspection.
4 lines
Product lines
Injection pens, glass ink cartridges, and injection pen cases, customized factory assembled.
100% in-house
Manufacturing chain
From precision mold to assembled, inspected and packed delivery.
Product lines
Four device families, one controlled supply chain
Reusable injection pen
Durable multi-dose platforms featuring a precise dose-setting mechanism for long-term clinical and distribution use.
- 1.5 ml / 3 ml formats
- Precise dose setting
- Durable metal/plastic body
Glass ink cartridge
High-purity glass cartridges with controlled neck dimensions, compatible with standard fill-finish lines.
- Borosilicate glass body
- Standard neck dimensions
- Aluminum crimp ready
Injection pen case
Protective and portable hard cases with custom foam inserts to keep devices protected and organised.
- Custom foam inserts
- Shockproof EVA/PP shell
- Portable & compact design
Manufacturing & quality
Six in-house stages that keep release dates under our control
01
Precision mold & tooling
Mold design and tooling in-house for stable geometry and fast sample loops.
02
Medical-grade injection molding
Automated molding cells with parameters recorded per batch.
03
Laser marking & traceability
Batch, scale and private-label markings etched with traceable records.
04
Cleanroom assembly
Assembly and visual inspection in a Class 100,000 cleanroom.
05
Laboratory verification
Dimensional, leak and force checks recorded against each released batch.
06
Final packaging
Cleanroom packing, labelling and carton release for export shipments.
Selected production projects
High-Volume Disposable Pen Production
Scalable automated manufacturing for large-scale OEM orders.
Cleanroom Assembly & Precision Fitting
Class 100,000 cleanroom assembly for critical components.
Custom Packaging & Color Programs
Tailored color matching and branded packaging solutions.
Key roles
Key roles and team
About Meishijie
A Zhengzhou plant built around injection device production
ISO 13485
Quality management system framework covering design, production and release.
CE
Technical documentation and conformity support for European market entry.
FDA registration
Registration pathway support for United States market access.
Batch traceability
Production and inspection records tied to each released batch.
How we work
A clear six-step path from enquiry to shipment
- 1
Submit your requirement
Share the device type, annual volume, target market and any custom packaging or branding needs.
- 2
Quotation and confirmation
We return an itemised factory quotation with tooling, unit price, lead time and Incoterms for your review.
- 3
Artwork and sampling
Artwork, print files and samples are produced and approved before any mass production begins.
- 4
Contract and deposit
Once samples are approved we sign the supply contract and start production against the agreed deposit.
- 5
Mass production
Tooling, molding, marking, cleanroom assembly and inspection run to the approved specification and schedule.
- 6
Balance and shipment
Final inspection, export cartons, balance payment and shipment on the trade terms confirmed in the contract.
Buyer questions
Frequently asked questions
Next step