RWD 68637 Veterinary Anesthesia Face Mask for Cats and Small Animals

Overview

The RWD 68637 Veterinary Anesthesia Face Mask is a precision-engineered medical device designed for safe, controlled induction of inhalational anesthesia and emergency respiratory support in feline and small canine patients. Constructed from medical-grade, latex-free silicone with optimized flexibility and biocompatibility, the mask delivers consistent seal integrity across diverse craniofacial anatomies while minimizing tissue pressure and airway resistance. Its design adheres to fundamental principles of veterinary anesthetic delivery—ensuring rapid agent uptake during induction, stable concentration maintenance during maintenance, and unobstructed exhalation to prevent CO₂ rebreathing. The mask interfaces seamlessly with standard veterinary anesthesia machines (e.g., non-rebreathing circuits, Bain systems) and supports both spontaneous and assisted ventilation protocols in clinical, research, and teaching environments.

Key Features

• Medical-grade silicone construction: Chemically inert, autoclavable (up to 134°C), and resistant to common anesthetic agents including isoflurane, sevoflurane, and desflurane.
• Ergonomic contouring: Anatomically shaped rim with graduated thickness distribution ensures uniform facial contact pressure—critical for minimizing epistaxis, corneal exposure, or laryngeal irritation during prolonged use.
• Integrated port geometry: Central 22 mm ISO 5356-1 compliant connector enables direct attachment to breathing circuits without adapters; optional versions (68644–68646) include integrated 15 mm male Luer-lock or 22 mm female ISO connectors for modular hose integration.
• Multi-size scalability: Six standardized sizes (68637–68642) cover weight ranges from 25 kg (large-breed dogs), with incremental increases in internal volume and sealing surface area to maintain optimal minute ventilation ratios (V_E/V_T).
• Traceable manufacturing: Each unit carries engraved model number and batch code for GLP-compliant recordkeeping and audit readiness.

Sample Compatibility & Compliance

The RWD 68637 series is validated for use with domestic cats (Felis catus), domestic dogs (Canis lupus familiaris), and other small mammals of comparable head morphology—including ferrets, rabbits, and young swine used in preclinical pharmacology studies. All materials comply with ISO 10993-5 (cytotoxicity), ISO 10993-10 (irritation/sensitization), and USP Class VI biological safety standards. Manufacturing follows ISO 13485:2016 quality management system requirements. While not classified as a Class II medical device under FDA 21 CFR Part 860, the masks are intended for professional veterinary use only and must be operated under supervision per AAHA/AVMA anesthesia guidelines.

Software & Data Management

This is a passive, hardware-only device with no embedded electronics, firmware, or software dependencies. As such, it requires no calibration, firmware updates, or cybersecurity validation. Integration into digital anesthesia workflows occurs at the anesthesia machine level—where compatible ventilators (e.g., Matrx VMC, Hallowell EMC) log mask-associated parameters (e.g., circuit type, fresh gas flow, end-tidal agent concentration) within their native audit trails. When used in GLP or GCP-regulated studies, mask selection (e.g., “68637, size S”) must be documented in case report forms (CRFs) or electronic data capture (EDC) systems alongside animal identification and procedural timestamps.

Applications

• Routine anesthetic induction in outpatient and referral hospitals prior to intubation or non-invasive procedures.
• Emergency oxygen supplementation and controlled ventilation during cardiopulmonary resuscitation (CPR) per RECOVER guidelines.
• Short-duration imaging procedures (e.g., MRI, CT) where endotracheal intubation is contraindicated or impractical.
• Pharmacokinetic and toxicology studies requiring repeated, low-stress anesthetic exposures in conscious-to-anesthetized transitions.
• Veterinary education: Demonstrating mask ventilation technique, leak detection, and circuit assembly in accredited DVM curricula.

FAQ

Is the RWD 68637 mask compatible with pediatric human anesthesia circuits?
No. This device is specifically engineered and validated for veterinary species anatomy and regulatory pathways. Human-use circuits require different pressure thresholds, flow dynamics, and certification (e.g., FDA 510(k)), and cross-species use is not supported.
Can the mask be sterilized using ethylene oxide (EtO)?
Yes—silicone components are EtO-compatible. However, residual gas validation per ISO 10993-7 must be performed by the end user’s sterile processing department prior to clinical deployment.
What is the recommended replacement interval?
Inspect before each use for cracks, deformation, or loss of elasticity. Replace immediately if compromised. Under routine clinical use with proper cleaning (neutral pH enzymatic detergent + 70% ethanol wipe), typical service life exceeds 500 cycles.
Do RWD face masks meet ISO 8536-4 requirements for infusion equipment?
No—ISO 8536-4 applies to glass containers for parenteral preparations. Face masks fall outside this scope; relevant standards are ISO 10651-5 (lung ventilators) and ISO 5356-1 (anesthetic vaporizer connections).