Automated immunohistochemistry stainer

Introduction

An automated immunohistochemistry stainer is an instrument used for the automated staining of the tissue sections for the immunohistochemistry (IHC), which is a technique for the detection of the specific proteins in the tissue sections by the antibodies, and it is used in the pathology, the histology, and the research laboratories. The automated immunohistochemistry stainer consists of a staining platform or a carousel that holds the slides, the reagent delivery system, which applies the antibodies, the detection reagents, and the buffers, a temperature control system, a washing system, and a control and a software system, and it performs the staining protocols automatically, including the deparaffinization, the antigen retrieval, the blocking, the incubation with the primary and the secondary antibodies, the detection, and the counterstaining, with the controlled timing and the temperature; the automated immunohistochemistry stainer provides a consistent and a reproducible staining, with features such as the programmable protocols, the multiple slides, and the data management, and it is used for the diagnostic immunohistochemistry, for the detection of the tumor markers, for the research, for the standardization of the staining, and for many other applications; the automated immunohistochemistry stainer is an essential instrument in the pathology laboratory. Automated immunohistochemistry stainers are used in the pathology laboratories, in the histology laboratories, in the research institutions, in the hospitals, and for many other applications. With their automated staining, automated immunohistochemistry stainers are essential for the IHC analysis.

Automated Immunohistochemistry Stainer LAIHS-T2010

Automated Immunohistochemistry Stainer includes 4 dyeing units with a total capacity of 48 positions and supports tissue and enriched cell specimens. Reagent usage of the automated immun...

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Standards

ISO 15189:2022-Medical laboratories-Requirements for quality and competence

ISO/TS 23824:2024-Medical laboratories-Guidance on application of ISO 15189 in anatomic pathology

Complies with the above standards, but is not limited to them.

Features

1. Automated immunohistochemistry (IHC) stainer for standardized, walk-away staining of tissue slides with antibodies and chromogens.

2. Robotic liquid handling and incubation system for consistent IHC, in situ hybridization (ISH) and special staining.

3. Suitable for clinical pathology, surgical pathology, research, veterinary pathology, pharmaceutical and diagnostic labs.

4. Includes stainer body, slide racks, reagent containers, robotic arm, software, and operation manual.

5. Supports automated deparaffinization, antigen retrieval, antibody incubation, detection, counterstaining and coverslipping.

FAQ

Q1: What testing scenarios is this stainer mainly applied to?

A: The automated IHC stainer is used in clinical pathology, surgical pathology, research laboratories, veterinary pathology, pharmaceutical development, and diagnostic laboratories to automate the immunohistochemistry (IHC) staining process on formalin-fixed paraffin-embedded (FFPE) tissue slides, providing standardized, reproducible staining with minimal manual intervention. It supports clinical diagnostics (tumor marker identification (ER, PR, HER2 for breast cancer; PSA for prostate; CK7/CK20 for tumor origin; Ki-67 for proliferation; CD markers for lymphoma/leukemia), predictive biomarker testing (PD-L1 for immunotherapy, HER2 for targeted therapy, ALK/ROS1 for lung cancer), infectious disease detection (HBsAg, HPV, CMV, Helicobacter pylori in tissue), and diagnostic IHC for various cancers and diseases), research (biomarker discovery and validation, preclinical drug efficacy studies, tissue microarray (TMA) staining, neuroscience (neural markers), developmental biology), veterinary pathology (animal disease diagnostics, comparative pathology, pharmaceutical animal studies), pharmaceutical (drug target validation, toxicity studies, biomarker qualification for clinical trials), and quality control (standardized staining reduces inter-observer and inter-run variability, critical for diagnostic accuracy and clinical trial consistency).

Q2: What standards does the stainer comply with?

A: The automated IHC stainer follows relevant IEC, ISO, CLSI and GB/T standards including IEC 61010 (safety requirements for electrical laboratory equipment), applicable medical device regulations (FDA 510(k), CE IVD, NMPA - IHC stainers are typically Class I or II medical devices depending on jurisdiction and intended use), ISO 15189 (medical laboratory quality management), and CLSI guidelines for immunohistochemistry (e.g., CLSI I/LA28 - principles and procedures for immunohistochemistry; CLSI I/LA29 - quality assurance for IHC). The hardware complies with applicable EMC standards (IEC 61326). For clinical use, the stainer and associated reagents (antibodies, detection kits) should be IVD-registered/approved or validated as laboratory-developed tests (LDTs) per CLIA/CAP. Calibration/verification should include liquid handling accuracy (pipetting volume verification), slide positioning, temperature accuracy (for incubation and antigen retrieval), and staining consistency (positive/negative control slides).

Q3: What is the warranty period for the whole stainer and key components?

A: The whole automated IHC stainer is covered by a 12-month warranty. The robotic arm, liquid handling syringes/pumps, slide racks, heating modules, reagent storage, controller, software, and housing are covered, while reagent containers/tubes, pipette tips (if disposable), syringes (wear parts), tubing, filters, slide racks, and fuses are consumables or accessories. Damage from improper use, reagent spills/corrosion (antibodies, DAB (chromogen), xylene, ethanol - clean promptly; DAB is toxic and can stain surfaces), using non-compatible reagents/slides, liquid handler clogging (from precipitated antibodies or DAB), robotic collision (from incorrect slide loading), or unauthorized repair is excluded. Extended warranty and service contracts (preventive maintenance, software updates, calibration) are strongly recommended for automated systems and may be available. Syringes, tubing, and seals have finite lifespan (typically 1-2 years with regular use).

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained histopathology/pathology laboratory personnel familiar with IHC techniques and the specific stainer software. We provide operation manuals, installation, and training (typically 1-3 days of on-site training for clinical users). Proper instrument setup (place on stable, level bench in designated IHC area; away from direct sunlight (can affect fluorescent dyes if used), ensure power (dedicated circuit for high-power systems), ventilation (some systems have fume extraction for xylene/ethanol; ensure proper exhaust), connect to water/drain (if system has on-board deparaffinization with xylene/ethanol; some use dry deparaffinization), install software on connected PC (or use built-in controller), connect to LIS (if applicable - for slide tracking and result reporting), daily startup (power on stainer and PC, run startup/self-diagnostic (checks robotic arm, pumps, heaters, sensors), load reagents (antibodies, detection kit reagents (HRP polymer, DAB, hematoxylin), buffers, washes - prime/reprime tubing if needed; record reagent lot numbers and expiration dates), load slides (place labeled slides in racks (ensure correct orientation - tissue section facing up/right position; do not overload; include positive and negative control slides for each antibody run - critical for QC), program run (select staining protocol (antibody clone, retrieval method (heat-induced epitope retrieval (HIER) with citrate or EDTA buffer, enzyme retrieval), incubation times/temperatures, detection system (HRP/DAB, AP/Red, immunofluorescence), counterstain (hematoxylin), assign slides to protocols (scan slide barcodes or manually assign; verify patient ID/accession against protocol - critical for patient safety), start run (verify all parameters, start automated staining; monitor initial phase (first 5-10 minutes) for errors (clogs, spills, robotic issues); system runs unattended for 1-4 hours depending on protocol), post-run (remove stained slides (check staining quality visually or with scanner; evaluate controls (positive control should stain appropriately, negative control should be clean - if controls fail, run is invalid and must be repeated), dehydrate and coverslip (if stainer does not include coverslipping - manually dehydrate through ethanol, clear with xylene, mount with coverslip; some systems have integrated coverslipper), clean stainer (flush tubing with buffer/water, wipe spills (especially DAB - toxic and stains; clean DAB spills with appropriate disinfectant/bleach), empty waste containers (xylene, ethanol, DAB waste - dispose as hazardous waste per regulations), maintenance (daily: clean spills, empty waste, check reagent levels; weekly: deep clean slide racks, tubing flush, wipe exterior; monthly: syringe calibration, tubing inspection, heater calibration; semi-annually/annually: professional preventive maintenance by service technician (syringe replacement, tubing replacement, robotic arm calibration, software update), troubleshooting (clogged tubing/syringe (from DAB precipitation or antibody aggregates - flush, replace tubing/syringe; always filter DAB before use), staining too weak (antibody too dilute, incubation too short, retrieval insufficient, detection reagent expired - troubleshoot systematically), staining too strong/background (antibody too concentrated, incubation too long, blocking insufficient, endogenous peroxidase not quenched), uneven staining (slide not flat, reagent layer too thin, drying artifact (never let slides dry during staining - ensure adequate reagent volume), robotic errors (re-home arm, check for obstructions, recalibrate), and quality control (positive and negative controls for each antibody run (CAP requires controls for IHC); document control results; maintain reagent logs (lot, expiration, date opened); participate in proficiency testing (CAP IHC surveys, UK NEQAS); for clinical use, follow CLIA/CAP/ISO 15189 requirements for assay validation, QC, and personnel competency) are important for reliable, standardized IHC staining.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Liquid handling (pipetting) calibration recommended every 3-6 months (verify volume accuracy at multiple volumes using gravimetric method (weigh dispensed water) or photometric method (dye solution); accuracy typically +/- 2-5%; adjust or service if out of tolerance; syringes wear over time and may need replacement). Temperature calibration (for antigen retrieval and incubation modules) every 3-6 months using certified thermometer/temperature probe (verify at set points (e.g., 37 degrees C incubation, 95-100 degrees C retrieval); accuracy typically +/- 1 degree C). Slide positioning/robotic calibration every 6-12 months (verify robotic arm accurately dispenses reagent on slide center; misalignment causes uneven staining or spills; recalibrate if robotic collision occurs). Staining consistency verification with control slides before each clinical run (positive and negative controls - if controls fail, do not report patient results; investigate and repeat). Full system performance verification annually (by service technician: liquid handling, temperature, robotics, software, safety). For clinical/regulated use (CLIA, CAP, ISO 15189), follow applicable calibration/QC schedules and maintain records (calibration certificates, QC logs, maintenance records, reagent logs, proficiency testing results). IHC is a high-complexity test under CLIA - requires stringent QC and personnel competency.

Q7: Are supporting consumables universal?

A: Reagent containers/tubes (specific to stainer model - some use standard microcentrifuge tubes, others use proprietary reagent trays), pipette tips (if system uses disposable tips - standard or specific), detection kits (HRP polymer, DAB chromogen, AP/Red, hematoxylin, bluing reagent - available from IHC reagent suppliers (Dako/Agilent, Roche/Ventana, Leica, Abcam, Cell Marque; ensure compatibility with stainer and protocol), primary antibodies (from various suppliers - validate on stainer before clinical use; some stainers are optimized for specific antibody clones), antigen retrieval buffers (citrate pH 6, EDTA pH 8/9, Tris-EDTA - standard lab reagents), wash buffers (PBS, TBS - standard), deparaffinization reagents (xylene, graded ethanol - standard histology reagents; some systems use dry deparaffinization (no solvents)), coverslipping reagents (mounting medium, coverslips - if integrated coverslipper), cleaning supplies (mild detergent, bleach for DAB decontamination, lint-free wipes), syringes/tubing (replacement - specific to model), and slide racks (specific to model) are available from laboratory/histology supply companies, though reagent containers, syringes, tubing, and racks are stainer-specific (use manufacturer-recommended or certified compatible consumables to avoid damage and ensure performance). Long-term consumable cost is significant (antibodies, detection kits, DAB, solvents - per slide cost $5-50 depending on antibody; factor into total cost of ownership).

Q8: Can I customize parameters or supporting accessories?

A: Customization includes slide capacity (10-30 slides (low-volume, research), 30-60 slides (medium, clinical), 60-100+ slides (high-volume, commercial labs; some systems have continuous loading), integrated modules (deparaffinization (on-board xylene/ethanol or dry deparaffinization), antigen retrieval (HIER with heated buffer baths or slide-level heating; enzyme retrieval option), staining (antibody incubation, detection, chromogen), counterstaining (hematoxylin), coverslipping (integrated coverslipper with mounting medium - fully walk-away from FFPE slide to coverslipped slide; not all systems have all modules - some require manual deparaffinization/coverslipping), detection technology (chromogenic IHC (HRP/DAB (brown), AP/Red (red), multiplex chromogenic), immunofluorescence (IF - fluorescent dyes, requires dark room and fluorescence imaging; some systems support IF), multiplex immunofluorescence (mIF - multiple markers on same slide with spectral imaging; advanced systems)), liquid handling (syringe pump (accurate, for fixed volumes), peristaltic pump (for bulk reagents), disposable tips (no cross-contamination, but higher cost), non-contact dispensing (piezo/inkjet - for small volumes, high throughput), reagent storage (refrigerated reagent compartment (for antibody stability during long runs; some systems keep antibodies at 4-8 degrees C), ambient storage (for stable reagents), barcode/RFID tracking (reagent lot, expiration, volume), software (protocol editor (customize incubation times, temperatures, reagent volumes; save protocols), LIS integration (HL7, web service - auto-download orders, upload results), slide barcode scanning (track each slide, reduce labeling errors), QC tracking (control results, reagent logs), remote monitoring (check run status from network), user access control (password protection, permissions - for 21 CFR Part 11 compliance), construction (stainless steel or plastic housing, chemical-resistant surfaces, fume extraction (for xylene/ethanol), waste containers (solvent, DAB waste), language and accessories. Additional slide racks, reagent containers, detection kits, and accessories can be ordered separately.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the IHC stainer, PC/controller (sometimes), basic accessories (slide racks, reagent containers), initial consumables (sometimes), software, and instruction manual. On-site installation, commissioning, assay validation, and training ARE typically included or strongly recommended for automated IHC stainers (these are complex systems requiring professional setup, software configuration, and user training; installation and 1-3 days of training are often part of purchase agreement or available at additional cost). For clinical use, assay validation (each antibody must be validated on the specific stainer before clinical use - per CLIA/CAP) may require additional support. Remote guidance and software support are provided.

Q10: What types of assays are compatible with this equipment?

A: The automated IHC stainer performs various staining assays on FFPE and frozen tissue slides including immunohistochemistry (IHC) (chromogenic detection: HRP/DAB (brown precipitate - most common, for nuclear, cytoplasmic, membrane markers; e.g., ER (nuclear), HER2 (membrane), Ki-67 (nuclear), cytokeratins (cytoplasmic)), AP/Red (red precipitate - for multiplex with DAB, or for samples where brown background is problematic), HRP/AEC (red, alcohol-soluble - not for permanent mounts), multiplex chromogenic (2-3 markers on same slide with different colors)), immunofluorescence (IF) (direct/indirect immunofluorescence with fluorophores (FITC, Alexa Fluor, Cy3, Cy5); for co-localization studies, multiple markers; requires fluorescence microscope/scanner; some automated stainers support IF with light-protected incubation), in situ hybridization (ISH) (chromogenic ISH (CISH - for HER2 gene amplification, HPV, EBV; DNA probes with chromogenic detection), fluorescence ISH (FISH - for gene amplification, translocation; requires fluorescence microscope; some systems support FISH probe application and washing, though hybridization is often manual), RNAscope (advanced RNA ISH with signal amplification - for gene expression in tissue)), special stains (some automated stainers support routine special stains (H&E, PAS, trichrome, Gram, acid-fast) - though dedicated special stainers are more common; IHC stainers may handle special stains as additional protocols), and multiplex immunofluorescence (mIF)/immunohistochemistry (advanced systems support 4-8 markers on same slide with sequential staining and spectral imaging; for tumor microenvironment analysis, immune cell profiling (PD-1, PD-L1, CD3, CD8, CD68, etc.); used in immunotherapy research and clinical trials). Compatible sample types: FFPE tissue sections (4-5 micrometers on positively charged slides - standard for clinical IHC), frozen tissue sections (cryostat sections on charged slides - some systems support frozen (requires different fixation/retrieval), tissue microarrays (TMA - multiple cores on one slide, high-throughput biomarker analysis; automated stainers are ideal for TMA staining), cytology preparations (cell blocks, cytospins, smears - some protocols adapted for cytology), and fine needle aspirates (cell block sections). NOT compatible with: Live cells/tissues (IHC requires fixed, permeabilized tissue; not for live cell imaging), whole organs/large specimens (stainers accommodate standard microscope slides (25x75 mm); large sections (whole brain, whole mount) may require specialized slide holders or manual staining), electron microscopy samples (different processing and staining), and samples requiring non-standard slide formats (verify slide dimensions with stainer specifications). IMPORTANT: IHC automation and clinical significance: (1) Standardization: Automated IHC stainers reduce variability from manual staining (manual pipetting, incubation timing, temperature, wash consistency) which is a major source of inter-laboratory and inter-run variability. Standardization is critical for diagnostic IHC, especially for predictive biomarkers (HER2, ER, PR, PD-L1) where staining intensity and percentage guide treatment decisions. (2) Walk-away efficiency: Automated systems process 10-100 slides per run with minimal hands-on time (loading slides/reagents, programming). This improves lab productivity and allows staff to focus on interpretation. (3) Reagent and assay validation: Each antibody and detection kit must be validated on the specific automated stainer before clinical use (per CLIA/CAP). Validation includes: optimization of retrieval (HIER buffer, time, temperature), antibody dilution, incubation time/temperature, detection system, and establishment of scoring criteria. Positive and negative controls must be run with each batch. (4) Quality control: CAP requires positive and negative controls for each IHC run. Controls validate the entire staining process (fixation, retrieval, antibody, detection). If controls fail, patient results cannot be reported. Proficiency testing (CAP surveys, UK NEQAS) is required for accredited labs. (5) Pre-analytical variables: Automation does not eliminate pre-analytical variability (fixation time, formalin concentration, tissue processing, section thickness) which significantly affect IHC results. Standardizing pre-analytical steps is equally important. (6) Safety: IHC reagents include hazardous chemicals: DAB (3,3-diaminobenzidine - suspected carcinogen, toxic; handle with gloves, dispose as hazardous waste; decontaminate spills with bleach or commercial DAB decontaminant), xylene (flammable, toxic, neurotoxic - use fume hood or system with fume extraction), formalin (fixative - toxic, carcinogenic), hydrogen peroxide (corrosive, oxidizer), hematoxylin (stain, irritant). Follow institutional safety protocols and dispose of waste per regulations. (7) LIS integration: Modern IHC stainers connect to LIS for slide tracking (barcode scanning), automated result reporting, and QC documentation. This reduces manual data entry errors and improves traceability. (8) Total cost of ownership: Beyond instrument purchase, ongoing costs include: reagents (antibodies, detection kits - $5-50/slide), consumables (tips, tubes, slides), maintenance (service contract $5-20K/year), software updates, and personnel training. High-throughput labs may find automation cost-effective through reduced labor and improved standardization; low-volume labs may use manual IHC or smaller automated systems.