DLAB SAFEVAC Vacuum Liquid Aspiration System

Overview

The DLAB SAFEVAC Vacuum Liquid Aspiration System is an engineered solution for precise, safe, and ergonomic removal of supernatants, culture media, wash buffers, and other low-viscosity aqueous liquids in bioscience, cell biology, and clinical laboratory workflows. Operating on the principle of controlled negative pressure generation via a brushless diaphragm vacuum pump, the SAFEVAC delivers stable suction across its full 0–600 mbar adjustable vacuum range—enabling fine-tuned aspiration for sensitive applications such as adherent cell monolayer harvesting or spent media removal from 96-well plates without disturbing cell layers. Its compact footprint (180 × 240 × 450 mm) and lightweight construction (3 kg) allow seamless integration into biosafety cabinets, laminar flow hoods, and benchtop workspaces without compromising accessibility or workflow continuity.

Key Features

• Adjustable vacuum control with digital feedback—enables reproducible aspiration across diverse vessel geometries including Petri dishes, T-flasks, microcentrifuge tubes, and multiwell plates (6–384-well).
• Integrated liquid level detection system—automatically interrupts suction when the 4 L polypropylene collection bottle reaches 90% capacity, preventing overflow and cross-contamination.
• Autoclavable components—including both single-channel and 8-channel stainless-steel aspiration tips, as well as the pusher assemblies—validated for steam sterilization at 121°C for 20 minutes under 1 bar saturated steam pressure per ISO 17665-1.
• Self-locking IEC 60320 C14 inlet connector—ensures secure power coupling and eliminates accidental disconnection during operation; complies with IEC 61000-6-3 EMC emission standards.
• Brushless diaphragm pump architecture—provides oil-free, maintenance-free vacuum generation with no risk of hydrocarbon contamination; rated for continuous duty at ambient temperatures up to 40°C.

Sample Compatibility & Compliance

The SAFEVAC accommodates a broad spectrum of liquid handling formats: standard tissue culture flasks (T25–T225), Corning®-style multiwell plates, Falcon® conical tubes (15–50 mL), and open bench surfaces requiring spill containment. All wetted materials—including tubing, bottle gasket, and tip housings—are certified USP Class VI compliant and resistant to 70% ethanol, 0.5% sodium hypochlorite, and common phosphate-buffered saline formulations. The system meets CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and supports GLP-compliant documentation through optional audit trail logging when integrated with validated lab information management systems (LIMS).

Software & Data Management

While the SAFEVAC operates as a standalone analog-controlled instrument, its vacuum setpoint and runtime can be externally monitored via optional analog voltage output (0–10 V DC) for integration into centralized facility monitoring platforms. No proprietary software is required for basic operation; however, configuration parameters—including maximum vacuum threshold, aspiration timeout, and auto-shutoff delay—can be stored and recalled using the front-panel membrane keypad. For regulated environments, the device supports 21 CFR Part 11–aligned procedural controls when deployed alongside electronic lab notebooks (ELNs) that enforce user authentication, electronic signatures, and immutable audit trails.

Applications

• Cell culture maintenance: Gentle aspiration of spent DMEM/FBS media from confluent monolayers without shear-induced detachment.
• High-throughput screening (HTS): Rapid parallel aspiration from 96- and 384-well plates during ELISA wash steps or bead-based assay protocols.
• Molecular biology: Removal of ethanol wash supernatants post-DNA precipitation or column-based purification.
• Clinical diagnostics: Safe aspiration of biohazardous fluids (e.g., serum, urine, BAL fluid) under BSL-2 containment conditions.
• Quality control laboratories: Routine buffer exchange in QC testing of injectables per USP and EP 2.6.27 guidelines.

FAQ

Is the SAFEVAC compatible with vacuum manifolds designed for other brands?
Yes—the system uses standard 8 mm ID vacuum tubing and features a universal 1/4″ NPT vacuum port, enabling direct connection to third-party manifolds, filter holders, or trap assemblies.
Can the collection bottle be replaced with a larger custom container?
No—the 4 L bottle is integral to the liquid level sensor calibration; substitution voids safety certification and invalidates the automatic shutoff function.
What maintenance is required for long-term reliability?
The brushless pump requires no scheduled lubrication or filter replacement; periodic inspection of O-rings and tubing for cracks or swelling is recommended every 6 months under daily use.
Does the SAFEVAC meet ISO 13485 requirements for medical device manufacturing environments?
While not certified as a medical device itself, all materials and assembly processes comply with ISO 13485:2016 Annex A clause 7.5.1 (production and service provision), supporting its use in Class IIa/IIb device manufacturing cleanrooms.
Is there a version with integrated vacuum gauge display?
The current SAFEVAC model includes analog vacuum adjustment only; a digital readout variant (SAFEVAC-D) is available upon request with factory calibration traceable to NIST standards.