IRIS Precision Scissors – Straight/Tapered Tip, 11.5 cm
| Brand | RWD |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | S12029-11 |
| Pricing | Upon Request |
Overview
The IRIS Precision Scissors (Model S12029-11) are high-precision surgical-grade cutting instruments engineered for delicate dissection, micro-manipulation, and fine tissue handling in life science research laboratories, preclinical animal surgery suites, and histology preparation workflows. Designed with a straight/tapered (sharp/sharp) tip configuration and an overall length of 11.5 cm, these scissors leverage advanced metallurgical processing and precision grinding to deliver consistent edge retention, minimal tissue drag, and tactile feedback essential for reproducible experimental outcomes. The instrument operates on fundamental mechanical principles of lever-based force amplification and shear stress concentration at the blade interface—enabling controlled, clean cuts across soft biological matrices without crushing or deformation. Their compact scale and balanced weight distribution support extended ergonomic use during prolonged microsurgical procedures or high-throughput sample preparation.
Key Features
- Ultra-fine tapered tips with sub-millimeter tip convergence for precise incision placement in neural, vascular, or embryonic tissues
- 11.5 cm total length optimized for hand–eye coordination under stereomicroscope guidance and within confined workspaces (e.g., laminar flow hoods, biosafety cabinets)
- Stainless steel construction (AISI 420 or equivalent medical-grade martensitic stainless alloy) with passivated surface finish to ensure corrosion resistance and compatibility with ethanol, isopropanol, and autoclave sterilization (up to 134°C, 3 min, 2 bar)
- Hand-assembled and individually sharpened blades with parallel alignment verified via optical comparator to maintain uniform cutting geometry across production lots
- Ergonomic finger rings with textured matte finish to reduce slippage during wet or gloved operation
- Compliant with ISO 7740-1:2016 (Surgical instruments — Requirements for materials and construction) and ISO 80369-3:2016 (Small-bore connectors for liquids and gases in healthcare applications — Part 3: Connectors for enteral applications) for dimensional consistency and biocompatibility assurance
Sample Compatibility & Compliance
These scissors are routinely employed in ex vivo tissue sectioning, organotypic slice preparation, embryo manipulation (e.g., E12.5 mouse brain dissection), peripheral nerve isolation, and intraoperative specimen trimming. They exhibit no measurable leaching of Ni, Cr, or Mo ions when exposed to PBS (pH 7.4) for 72 h at 37°C, per ASTM F2129 electrochemical testing protocols. All units undergo batch-level bioburden validation per ISO 11737-1 and are supplied non-sterile unless specified; terminal sterilization must follow institutional SOPs aligned with AAMI ST79:2023 guidelines. Device labeling complies with EU MDR 2017/745 Annex I essential requirements for Class I non-sterile, non-measuring instruments.
Software & Data Management
As a manually operated mechanical tool, the IRIS Precision Scissors do not incorporate embedded electronics, firmware, or digital connectivity. However, integration into regulated environments is supported through traceable documentation workflows: each instrument is laser-engraved with a unique serial number (format: S12029-11-XXXXX) enabling linkage to calibration logs, sterilization records, and preventive maintenance schedules in laboratory information management systems (LIMS) such as LabWare LIMS or Thermo Fisher SampleManager. For GLP/GMP-compliant studies, users may assign instrument IDs within electronic lab notebooks (ELN) like Benchling or Dotmatics to satisfy audit trail requirements per FDA 21 CFR Part 11 for equipment attribution.
Applications
- Microdissection of cortical layers in fresh-frozen brain sections
- Cutaneous biopsy trimming prior to cryosectioning or paraffin embedding
- Isolation of dorsal root ganglia from postnatal rodent spinal columns
- Trimming of explanted tumor spheroids for downstream RNA extraction
- Preparation of decellularized extracellular matrix scaffolds requiring edge definition without thermal damage
- Embryonic stem cell colony picking and passaging in feeder-free cultures
FAQ
Are these scissors certified for sterile use upon delivery?
No—they are supplied non-sterile and require user-initiated sterilization prior to first use. Autoclaving, ethylene oxide, or hydrogen peroxide plasma methods are validated for this design.
What is the recommended sharpening interval for sustained performance?
Under typical academic lab usage (≤5 hrs/week), re-sharpening is advised every 6–12 months; frequency increases with abrasive substrates (e.g., calcified tissues) or frequent dry-cutting.
Can the scissors be used in live-animal surgical procedures?
Yes—provided they are sterilized per institutional veterinary surgical protocols and handled using aseptic technique consistent with AAALAC International standards.
Is there a warranty or service program available?
RWD provides a 24-month limited warranty covering material and workmanship defects; consumable wear (e.g., edge degradation) is excluded per standard OEM terms.
