RWD 68602 Anesthesia and Recovery Mask for Stereotaxic Instruments
| Brand | RWD |
|---|---|
| Origin | Shenzhen, China |
| Manufacturer Type | OEM Manufacturer |
| Region of Origin | Domestic (China) |
| Model | 68602 |
| Pricing | Upon Request |
| Animal Capacity | Rat (<300 g) |
| Recovery Mode | Passive Exhaust Interface (Exhaust Port Compatible with Gas Scavenging Canisters Only) |
Overview
The RWD 68602 Anesthesia and Recovery Mask is a precision-engineered accessory designed exclusively for integration with stereotaxic frames used in rodent neurosurgical and behavioral neuroscience research. It functions as a dedicated inhalational anesthetic delivery and post-procedural recovery interface for rats weighing under 300 g. The mask operates on standard veterinary anesthesia gas delivery principles—utilizing calibrated isoflurane or sevoflurane vaporizer output—and features a passive exhaust configuration, meaning exhaled anesthetic gases are directed solely through a dedicated exhaust port to external charcoal-based scavenging canisters. This design eliminates backpressure on the animal’s airway while ensuring compliance with institutional occupational safety policies governing volatile anesthetic exposure limits (per OSHA and NIOSH guidelines). Its anatomically contoured silicone seal minimizes gas leakage and maintains stable anesthetic depth during craniotomy, electrode implantation, or viral vector injection procedures requiring prolonged immobilization.
Key Features
- Anatomically optimized silicone face seal engineered for secure, low-leakage fit on rats ≤300 g—reducing anesthetic waste and enhancing dose consistency.
- Passive exhaust architecture: single dedicated exhaust port compatible only with certified anesthetic gas scavenging canisters (e.g., Medisorb®, Deltascrubber®), preventing uncontrolled ambient release.
- Autoclavable and chemical-resistant construction—validated for repeated sterilization via saturated steam autoclaving (121°C, 15–20 min) and compatibility with 70% ethanol, isopropyl alcohol, and enzymatic cleaners.
- Integrated universal Luer-lock inlet (6% conical taper) for direct connection to standard anesthesia circuits (e.g., non-rebreathing Y-piece or coaxial tubing).
- Low dead-space internal volume (<1.8 mL) to minimize rebreathing of CO₂ and accelerate induction/recovery kinetics.
- Modular compatibility with RWD stereotaxic instruments (models 68000-series), including integrated mounting brackets for hands-free positioning during surgery.
Sample Compatibility & Compliance
The RWD 68602 mask is validated for use with Sprague-Dawley, Wistar, Long-Evans, and transgenic rat strains within the specified weight range. It conforms to ISO 13485:2016 requirements for medical device accessories used in preclinical research settings. While not classified as a Class II medical device under FDA 21 CFR Part 860, its material composition (medical-grade platinum-cured silicone, USP Class VI compliant) meets biocompatibility standards per ISO 10993-5 (cytotoxicity) and ISO 10993-10 (irritation/sensitization). Institutions subject to AAALAC International accreditation may document its use under SOPs addressing anesthetic gas management and occupational health surveillance.
Software & Data Management
As a hardware-only accessory, the RWD 68602 does not incorporate embedded electronics or firmware. It interfaces seamlessly with third-party anesthesia monitoring systems (e.g., Nonin Medical VetSpO₂, Kent Scientific PhysioSuite™) via standard analog signal inputs. No proprietary software, drivers, or cloud connectivity are required. All usage logs—including duration of anesthesia, vaporizer concentration settings, and scavenger replacement intervals—must be manually recorded in electronic lab notebooks (ELN) compliant with GLP audit trails (e.g., LabArchives, Benchling) to satisfy institutional IACUC reporting requirements.
Applications
- Intracranial cannula implantation for microdialysis or drug infusion studies.
- Stereotactic injection of AAV vectors, CRISPR components, or tracer dyes into hippocampal, striatal, or cortical targets.
- Electrophysiological recordings (e.g., in vivo tetrode or silicon probe implantation) requiring stable head fixation and consistent anesthetic plane.
- Post-surgical recovery monitoring where controlled, gradual emergence from anesthesia is critical to baseline behavioral assessment.
- Longitudinal studies involving repeated surgical interventions across multiple timepoints, leveraging reproducible mask fit and cleaning validation.
FAQ
Is the RWD 68602 compatible with isoflurane vaporizers from major vendors (e.g., Matrx, SomnoSuite)?
Yes—its Luer-lock inlet accepts standard 6% conical taper connections used by all veterinary-grade precision vaporizers.
Can this mask be used for active gas scavenging systems?
No—model 68602 supports passive scavenging only; for active vacuum-assisted recovery, select RWD models 68666 or 68667.
What is the recommended cleaning protocol between animal subjects?
Rinse with deionized water, soak in enzymatic cleaner (e.g., Enzol, 1:200 dilution) for 10 min, rinse thoroughly, then autoclave at 121°C for 15 min.
Does the mask include a built-in CO₂ absorber?
No—it is intended for use with non-rebreathing circuits; CO₂ removal occurs externally via the anesthesia machine’s soda lime canister.
How frequently should the silicone seal be replaced?
Inspect before each use; replace if surface cracking, permanent deformation, or loss of elasticity is observed—typically every 6–12 months under daily laboratory use.
