Medical Specimen Bags, Transparent Visible, Leak-Proof Design

Core Selling Points

Ultra-High Transparent Visibility: Using special optical processing technology, transparency exceeding 95%, sample color and status clearly visible at a glance, allowing visual assessment without opening the bag, reducing sample exposure risk by 90%, particularly suitable for clinical samples requiring color interpretation.
Excellent Leak-Proof Performance: Combining molecular-level heat sealing technology and patented edge treatment, sealing strength reaching 5.8N/cm, passing ISO 16101 liquid sealing test, seal integrity testing pass rate reaching 99.95%, effectively preventing cross-contamination and environmental hazards caused by sample leakage.
Excellent Temperature Adaptability: Special material formula enabling specimen bags to maintain stable physical properties within -50°C to 80°C temperature range, supporting refrigerator storage, freezer freezing, and room temperature preservation, meeting different specimens' storage requirements, material toughness at -20°C still maintaining 88% of original state.
Multiple Marking Systems: Bag designed with specialized writing areas, supporting multiple identification methods including medical markers, labels, and barcodes, writing wipe resistance testing pass rate 99.7%, effectively improving sample traceability accuracy to 99.9%, reducing pre-examination error rate by 85%.
Fully Compliant with Medical Standards: Material complying with FDA 21 CFR 177.1520 and USP Class VI biocompatibility standards, passing ISO 10993-5 cytotoxicity testing, non-toxic and harmless, suitable for contacting sensitive biological samples, ensuring sample quality unaffected by packaging materials.

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Material and Process Details

This product uses medical-grade low-density polyethylene (LDPE) material, processed through special stretching technology, forming high-transparency molecular arrangement structure. Material thickness precisely controlled at 2.8 MIL (0.071mm), thickness uniformity deviation controlled within ±0.008mm range, ensuring consistent and reliable protection performance. Material added with unique formula anti-oxidants and anti-UV stabilizers, light resistance improved by 65%, maintaining stable performance for over 36 months under normal laboratory lighting conditions. Bag edges use ultrasonic heat sealing technology, seam width reaching 6mm, melting temperature precisely controlled at 175±3℃, forming molecular-level cross-linked structure, seam strength 50% higher than traditional heat sealing. Material specially treated, surface tension controlled at 38-42 mN/m, both preventing sample liquid adhesion to bag walls and not affecting marking and label adhesion. All raw materials free from phthalates (DEHP), latex, and BPA, complying with EU REACH regulation requirements. Material specially modified, maintaining sufficient toughness even in -50°C low-temperature environments, cold brittle transition temperature (CBTT) below -60°C, supporting ultra-low temperature sample storage and transport.

Application Scenarios

Hospital Laboratory Department: Processing routine specimens such as blood, urine, etc., 600+ daily, over 95% transparency specimen bags allowing technicians to directly observe specimen conditions, such as blood coagulation, urine turbidity, etc., improving early detection of unqualified samples by 78%, preventing testing errors, improving report accuracy.
Pathology Department Tissue Sample Management: Processing various biopsy and surgical specimens, leak-proof design ensuring fixatives such as formalin won't leak, sealing strength of 5.8N/cm preventing cracking during transport, ensuring specimen integrity and staff safety, pathological diagnosis accuracy improving by 12%.
Pediatric Blood Sample Collection: Pediatric patient blood samples typically smaller and more precious, transparent specimen bags facilitating intuitive assessment of whether blood volume is sufficient for scheduled testing, preventing repeated collection due to insufficient sample volume, reducing blood collection frequency for pediatric patients by 35%, improving patient satisfaction.
Clinical Research Sample Transport: Multi-center clinical research sample transport 400+ times monthly, medical specimen collection bags maintaining stable performance within -50°C to 80°C temperature range, particularly suitable for pharmacokinetic samples requiring cold chain transport, sample intact arrival rate improved to 99.8%, enhancing research data reliability.

Usage Steps

Bag Preparation: Take the medical specimen collection bag from the packaging, check transparency and bag integrity, gently shake open the bag to fully unfold it, eliminating possible static adsorption.
Sample Information Marking: Use a medical marker to clearly mark patient information, sample type, collection time, and other key information in the designated area on the bag, or attach pre-printed barcode labels, ensuring information won't be erased.
Sample Placement: Ensure sample containers (such as blood collection tubes, urine cups) caps are tightly screwed or well sealed, gently place into specimen bags, avoid squeezing or shaking samples, preventing container damage, it is recommended to place only one sample in a single bag.
Seal Bag Opening: According to specimen bag design type (such as self-sealing strip, adhesive closure, or heat seal), firmly seal the bag opening, ensure completely sealed without gaps, preventing sample leakage, reducing contamination risk by 99%.
Storage or Transport: Choose appropriate storage conditions (room temperature, refrigeration, or freezing) according to sample requirements, place in designated sample racks or transport boxes, avoid squeezing and excessive stacking, keep sample identification clearly visible.

Maintenance Guide

Storage Conditions: New unused specimen bags should be stored in temperature 15-25℃, relative humidity 40%-60% environments, avoid direct sunlight and humid environments, away from heat sources and chemical reagents, preventing material aging or performance changes.
Usage Period: Unopened products have a shelf life of 5 years under appropriate conditions, after opening it is recommended to use within 18 months, products exceeding this period may experience material aging and decreased sealing performance, affecting sample safety.
Batch Management: Laboratories should establish specimen bag usage records, recording batch numbers and usage dates, implementing first-in-first-out principle, regularly checking inventory products' transparency and toughness, ensuring continuous compliance with clinical and experimental requirements.
Quality Testing: At least 2% of inventory specimen bags should be sampled quarterly for sealing testing (injecting 10ml water, sealing for 24 hours) and transparency assessment, promptly replacing batches if problems are found, ensuring safe and reliable sample collection and preservation.
Low-Temperature Usage Precautions: For samples requiring storage in low-temperature environments (below -20℃), it is recommended to first load samples and seal at room temperature, then cool for storage, this prevents material sealing performance being affected in low-temperature states.