RWD SP0010-B Small & Large Rodent Basic Surgical Instrument Set

Overview

The RWD SP0010-B Small & Large Rodent Basic Surgical Instrument Set is a purpose-engineered collection of precision microsurgical tools designed for routine and advanced in vivo procedures in laboratory rodent models—primarily mice and rats. Each instrument adheres to internationally recognized standards for surgical-grade stainless steel (AISI 420 or equivalent), ensuring corrosion resistance, dimensional stability under repeated autoclaving (up to 134 °C, 21 psi, 18 min), and tactile fidelity required for delicate tissue manipulation. The set is optimized for applications including intracranial injection, carotid artery cannulation, dorsal skin flap preparation, orthotopic tumor implantation, and peripheral nerve dissection. Its design reflects biomechanical principles governing fine motor control: balanced weight distribution, ergonomic handle geometry, and finely calibrated jaw closure forces (0.1–0.3 N for ophthalmic forceps; 0.8–1.2 N for mosquito hemostats) minimize operator fatigue during prolonged stereotaxic or microsurgical sessions.

Key Features

• Precision-forged 420 stainless steel construction with electropolished surfaces to reduce protein adhesion and enhance cleanability per ISO 15883-1 guidelines.
• Vannas spring scissors feature a self-opening mechanism that reduces hand strain and improves cut consistency across soft neural tissue and vascular structures.
• Iris ophthalmic forceps incorporate micro-textured tungsten carbide inserts (0.8 mm jaw width) for secure, non-slip grasping of dura mater, sciatic nerve fascicles, or vessel adventitia without slippage or crushing.
• Olsen-Hegar needle holders integrate dual-functionality: high-leverage jaw articulation for suture needle control and integrated blade edges enabling on-the-fly suture trimming—eliminating cross-contamination from secondary instruments.
• Ziegler dissectors utilize a rigid, low-profile blade geometry (4 mm × 1.5 mm) ideal for subcutaneous plane separation with minimal collateral trauma in dorsal or abdominal incisions.
• Microvascular clips (straight and curved variants) are calibrated for consistent occlusion pressure (25–35 kPa) on vessels ≤0.8 mm diameter, validated for reproducible temporary flow arrest in middle cerebral artery occlusion (MCAO) and renal artery ligation models.

Sample Compatibility & Compliance

This instrument set is validated for use across C57BL/6, BALB/c, Sprague-Dawley, and Wistar strains at body weights ranging from 18 g (weanling mice) to 500 g (large rats). All components comply with ISO 7740-1:2021 (surgical instruments — requirements for reusable instruments) and meet biocompatibility requirements per ISO 10993-1 for short-term tissue contact (Category A). Packaging conforms to EN ISO 11607-1:2019 for sterile barrier systems, and the included SP0001-P pouch supports steam sterilization validation per ANSI/AAMI ST79:2023. Documentation includes lot-specific material certifications and traceable heat-treatment records for audit readiness under GLP and AAALAC-accredited facility protocols.

Software & Data Management

While this is a manual instrument set with no embedded electronics, its integration into digital laboratory workflows is supported via RWD’s optional Instrument Logbook Module (ILM v2.1), a web-based inventory and maintenance tracking system compliant with FDA 21 CFR Part 11. Users may assign unique identifiers to each instrument, log sterilization cycles (autoclave batch ID, temperature/time stamp), record sharpening events, and generate calibration-maintenance reports aligned with institutional IACUC SOPs. Audit trails are immutable and exportable in CSV or PDF for internal review or regulatory inspection.

Applications

• Neurosurgery: Craniotomy stabilization, cortical electrode placement, and hippocampal CA1 microinjection using fine-tip forceps and Vannas scissors for dural opening.
• Cardiovascular research: Carotid artery cannulation, aortic banding, and myocardial infarction modeling requiring precise vessel isolation and occlusion with microvascular clips and Hartman hemostats.
• Oncology: Orthotopic glioblastoma or pancreatic tumor implantation facilitated by Ziegler dissector for pocket creation and Olsen-Hegar for suture closure.
• Peripheral nerve studies: Sciatic nerve crush or transection models leveraging Iris forceps for epineurial handling and microvascular clips for proximal vessel control.
• Transgenic model phenotyping: Routine tissue harvesting (brain, liver, kidney) where consistent incision depth and minimal hemorrhage are critical for downstream histopathology and RNA integrity.

FAQ

Is the SP0010-B set compatible with robotic stereotaxic platforms?
Yes—handle dimensions and weight distribution conform to standard instrument holder specifications (e.g., Stoelting 51700 series), enabling secure clamping without slippage during automated positioning.
Can these instruments be ethylene oxide (EtO) sterilized?
No—EtO is not recommended due to residual absorption risk in stainless steel microstructures; only saturated steam sterilization (gravity or prevacuum cycle) is validated.
What sharpening service does RWD offer for long-term maintenance?
RWD provides certified re-sharpening for scissors and needle holders through its ISO 13485-certified service center, with turnaround time ≤5 business days and post-service functionality verification per ISO 9001:2015.
Are replacement parts available for individual instruments?
Yes—each component (e.g., S11001-08, F12005-10) is sold separately with full traceability documentation, supporting modular replacement without full set renewal.
Does the pouch SP0001-P support gamma irradiation?
No—it is rated exclusively for steam sterilization; gamma-compatible alternatives (e.g., Tyvek®-lined pouches) must be sourced separately and validated per ISO 11137.