Product Specifications
|
Parameter |
Standard Configuration |
|
Device Format |
Prefilled, single-injection, fixed-dose pen |
|
Dose Configuration |
1 factory-set dose; no user dose adjustment |
|
Operating Sequence |
Standard ready-to-use version: remove the safety cap and press the pen against the skin |
|
Drive Method |
Spring-driven needle insertion and drug delivery |
|
Injection Time |
Approximately 2 seconds |
|
Needle Length |
6 mm |
|
Post-Use Lock |
Automatic permanent lock after delivery |
|
Shelf Life |
3 years in the sealed package |
|
Spring Mechanism Warranty |
2 years |
Key Advantages
● Factory-Set Fixed Dose
The dose is preset during device assembly, so the standard device has no dose dial or adjustment step. For emergency or infrequent use, operation consists of removing the safety cap and pressing the pen against the skin.
● 2-Second Spring Delivery Through A 6 MM Needle
The published standard configuration uses a spring-driven stroke, a 2-second injection time and a 6 mm needle. Fixed travel and a fixed delivery period keep the single-use sequence consistent in time-sensitive administration.
● Automatic Post-Use Lock With 3-Year Shelf Life
The mechanism locks automatically after delivery and cannot extend the needle again. The sealed standard configuration has a listed three-year shelf life, allowing stock rotation dates to be set for emergency and home-care kits.




Customization Options
The single-use mechanism is built around one fixed delivery cycle. The confirmed container, dose volume, spring output and injection time are matched so the plunger and shield stop at defined positions after activation.
Cap removal, needle protection and permanent post-use locking are treated as one sequence. Housing shape, activation force, end indication and product identification can be adjusted for the intended treatment environment without changing the approved safety logic.


Customization Process
Dose-System Definition
The container, fixed dose and target delivery time are approved first. These values define the functional specification for the single-use mechanism.
Spring And Fluid-Path Design
Spring output and plunger travel are matched to container resistance. Shield movement and locking are timed to the same delivery stroke.
Functional Prototype
Prototype devices are assembled to check cap removal, activation, delivery completion and permanent post-use locking as one sequence.
Design Verification
Delivered volume, injection time and needle movement are measured against the released limits. Transport or drop tests are added only when specified.
Pilot Build
A controlled pilot lot confirms spring loading, container installation and final assembly before commercial manufacture.
Production And Release
Batch production follows the approved process. Each device completes the defined final inspection before packing.
Quality Control
The spring, primary container and needle-protection components are checked before assembly because they control the full single-cycle movement. Performance testing follows cap removal, delivery and the permanent lock, comparing delivered volume, activation force and final shield position with the approved limits. Packaging vibration, drop or temperature exposure is added only when required by the validation plan. Final appearance and operating checks are completed before shipment.
FAQ
Q1: Can you provide a free reference sample?
A1: A basic reference sample can be provided when available. A project-specific functional sample requires confirmed technical inputs and payment for tooling or prototype development.
Q2: How long does custom sample development take?
A2: Tooling and sample development usually take 40-60 days. The schedule varies with the number of molded parts, the spring mechanism and the verification scope.
Q3: Does a one time use pen require priming?
A3: It can. A ready-to-use version can omit user priming when the selected container and fluid path support that sequence. The delivered volume is verified in the final configuration.
Q4: Can training devices be supplied?
A4: Yes. Non-drug training units can reproduce cap removal, activation force, indication and the post-use sequence without a live needle or medication container.
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