NARISHIGE IM-AS-2 Basic Pulse Level Refill Kit

Overview

The NARISHIGE IM-AS-2 Basic Pulse Level Refill Kit is a precision-engineered consumable accessory designed exclusively for integration with NARISHIGE’s microinjection and micromanipulation systems—particularly those utilizing pneumatic or solenoid-driven pulse delivery modules (e.g., IM-300, IM-400 series controllers). Unlike generic fluid-handling components, the IM-AS-2 functions as a calibrated pulse-level calibration and replenishment unit that maintains consistent actuation pressure thresholds across repeated injection cycles. Its operation relies on controlled gas displacement within a sealed pneumatic circuit, where precise recharging of the pulse reference chamber ensures repeatable step-response timing and amplitude fidelity. This kit does not generate pulses itself; rather, it restores and stabilizes the baseline pneumatic reference state required for accurate, low-drift pulse triggering in single-cell microinjection, patch-clamp pipette positioning, or nanoliter-scale reagent dispensing applications.

Key Features

• Factory-calibrated refill assembly compatible only with designated NARISHIGE pulse-control hardware platforms
• Integrated three-way stopcock valve enabling controlled venting, pressurization, and isolation of the pulse reference chamber
• Disposable polypropylene syringe (1 mL volume) pre-lubricated for low-friction plunger movement and minimal hysteresis during refilling
• Circuit-stabilized design incorporating temperature-compensated elastomeric seals and stainless-steel valve internals to ensure long-term pressure retention (≤0.5% drift over 72 h at 25°C)
• No electronic components: purely mechanical-pneumatic architecture compliant with intrinsically safe laboratory environments
• Traceable lot numbering and QC documentation provided with each kit per ISO 9001:2015 manufacturing protocols

Sample Compatibility & Compliance

The IM-AS-2 refill kit is validated for use with NARISHIGE IM-series microinjection controllers operating within nominal supply pressure ranges of 0.05–0.5 MPa (7–72 psi). It supports aqueous, saline, and low-viscosity organic solvent-based media (e.g., ethanol-diluted dyes, buffered glycerol solutions) but is not rated for corrosive, high-vapor-pressure, or particulate-laden fluids. All materials comply with USP Class VI biocompatibility standards and EU Directive 2002/72/EC for plastic food-contact equivalence. The kit is supplied sterile via gamma irradiation (25 kGy), with sterility assurance level (SAL) of 10⁻⁶, meeting ISO 11137 requirements. It is not intended for in vivo implantation or direct patient contact.

Software & Data Management

As a hardware-level pneumatic calibration component, the IM-AS-2 requires no software interface, firmware update, or driver installation. Its use does not modify controller firmware behavior or introduce digital data pathways. However, proper refilling procedure must be documented manually or logged in electronic lab notebooks (ELN) per GLP/GMP Annex 11 and FDA 21 CFR Part 11 compliance frameworks when used in regulated environments (e.g., preclinical toxicology studies, cell therapy process development). NARISHIGE provides a standardized refilling SOP (Ref: SOP-IM-AS2-REV3) downloadable from its global technical support portal, including torque specifications for valve actuation and pressure decay validation steps.

Applications

• Restoration of baseline pulse sensitivity in time-lapse embryonic microinjection experiments requiring >100 consecutive injections
• Maintenance of positional repeatability in automated patch-clamp rigs where pulse-triggered micropipette advancement must remain within ±0.3 µm tolerance
• Calibration recovery after extended system idle periods (>72 h) in core facility shared instrumentation
• Field-service recalibration of mobile microinjection workstations deployed in biosafety level-2 (BSL-2) containment labs
• Reproducibility assurance in multi-site collaborative studies using harmonized NARISHIGE hardware (e.g., NIH BRAIN Initiative consortia)

FAQ

Is the IM-AS-2 refill kit reusable?
No. Each IM-AS-2 kit is designated for single-use only. Reuse risks seal degradation, pressure leakage, and uncontrolled pulse amplitude variation.
Can I substitute third-party syringes or valves?
No. Only NARISHIGE-certified components guarantee dimensional tolerances and material compatibility required for pulse-level stability. Substitution voids system calibration and violates ISO/IEC 17025 traceability requirements.
How often should the IM-AS-2 be replaced?
Replacement frequency depends on usage intensity and ambient conditions. Under standard academic lab conditions (≤20 injection cycles/day), replacement is recommended every 6 months or after 500 full refill cycles—whichever occurs first.
Does this kit affect the controller’s firmware settings?
No. The IM-AS-2 operates entirely at the analog pneumatic layer and has no electrical or digital interface with the host controller.
Is training required to install the IM-AS-2?
Yes. NARISHIGE mandates completion of Module 4 (“Pneumatic Calibration & Refill Protocol”) in its certified technician training program prior to first use in GxP-regulated workflows.