LucentMed is a Chinese manufacturer of TCT sampling brushes, fully certified under ISO 13485, ISO 9001, and CE standards. Our products utilize medical-grade nylon, featuring soft yet resilient bristles that ensure high cellular yield and integrity during sample collection, thereby enhancing testing efficiency. Furthermore, collected cells are rapidly encapsulated by the preservation solution and achieve 100% efficient release during the slide preparation process.
LucentMed operates four major manufacturing bases and employs a team of over 160 people—including a 30-member quality control team—to ensure comprehensive quality management throughout the entire process. Our TCT Sampling Brush features a biomimetic brush head designed to precisely access and cover the cervical transformation zone, gently collecting exfoliated cells.
Product Design and Manufacturing Features
1. Micro-rounded Tip Technology
The tips of the TCT Sampling Brush bristles are not simply cut; each tip undergoes laser rounding.
This design generates sufficient friction to dislodge tightly adherent cervical cells while ensuring that mucosal capillaries are not punctured during rotation, thereby minimizing the clinical incidence of bleeding.
2. Differential Rigidity Design
The bristles vary in stiffness across different sections of the brush to ensure superior anatomical conformity.
The central bristles, designed to penetrate the cervical canal, possess higher axial rigidity to prevent bending or buckling upon insertion.
Conversely, the peripheral bristles—designed to contact the external os—offer greater lateral flexibility, allowing them to conform to the curvature of the cervix.
3. Precision Break-point Control
The break-point on the handle is engineered based on fracture mechanics calculations; a physician can snap it using approximately 5–10 N of lateral force with one hand. This design prevents bio-contamination caused by fluid splashing (which occurs if the handle is too rigid) and avoids premature breakage during the sampling rotation (which occurs if the handle is too soft).
Product Specifications
Parameter Category
Wire Type
Primary Material
Bristles: Nylon filaments wound with stainless steel wire
Tip bead: Epoxy resin (on select models)
Common Specifications
A1, A2, A3, A4, etc.
Brush Head Design
Broom-like or spiral shape; utilizes wire elasticity to conform to the shape of the cervix
Total Length
Typically 140mm – 170mm, depending on handle design
Sterilization Method
Ethylene oxide (EO) sterilization
Residual Limit Standard
Residual ethylene oxide ≤ 10µg/g
Scope of Application
Intended for endocervical cell collection and vaginal secretion sampling; certain designs facilitate deeper access into the cervical canal
What Are the Uses of the TCT Sampling Brush?
1. Liquid-based cervical cytology
The primary use of the TCT sampling brush is to collect cervical cells for liquid-based cytology testing.
By brushing the external cervical os and the endocervical canal to collect exfoliated cells, the brush ensures the cells are gathered intact and placed into a preservation solution for subsequent laboratory slide preparation and pathological analysis.
2. Early screening for cervical cancer
This product is widely used in cervical cancer screening programs to detect cervical intraepithelial neoplasia (CIN), precancerous lesions, and abnormal cellular morphological changes.
3. Sample collection for combined HPV testing
The TCT sampling brush is frequently used to collect samples for HPV testing, retrieving cervical cells for HPV DNA analysis.
When used in conjunction with TCT testing, this approach improves screening accuracy and facilitates the early identification of high-risk HPV infections.
4. Routine gynecological cytology
In clinical gynecological practice, the sampling brush serves as a fundamental screening tool for routine cervical health checks, aiding in the diagnosis of abnormal bleeding and the assessment of inflammation and cellular changes.
Precautions for Different Patient Groups
1. Unmarried women / Women who are not sexually active
Characteristics: Tighter cervical os, high tissue sensitivity.
Precautions: Prioritize models with flexible brush heads; avoid deep insertion into the cervical canal; use light, rotating movements; and limit the duration and number of sampling rotations.
2. Married women / Women who are sexually active
Characteristics: Normal cervical opening; highest compatibility.
Precautions: Standard models may be used; cover both the external cervical os and the cervical canal area; 1–3 rotations are sufficient; avoid repeated brushing of the same spot.
Precautions: Use models with softer bristles; be aware of the risk of cervical canal stenosis; slightly extend the rotation/contact time but maintain gentle technique; use auxiliary sampling tools if necessary.
4. Patients with cervical inflammation or infection
Precautions: A physician must assess suitability for sampling; monitor for local bleeding post-sampling; avoid repeated brushing.
5. Patients with cervical abnormalities or suspected lesions
Characteristics: High-quality cell samples required for diagnosis.
Precautions: Sampling must cover the complete area of both the external and internal cervical os; coverage may be expanded appropriately, but avoid causing injury.
6. Pregnant women
Characteristics: Cervical congestion and sensitivity; higher risk profile.
Precautions: Use only when there is a clear medical indication; a physician must assess the necessity of the procedure; strictly avoid causing bleeding or cervical irritation; monitor for adverse reactions after the procedure.
LucentMed provides a customized solution covering structure, materials, dimensions, packaging, etc., along with product specifications and design recommendations.
3. Sample Development and Testing
In this stage, we create new molds or modify existing ones to produce engineering samples, then test sampling efficiency and release rates in our internal laboratory.
Once sample development is complete, we provide samples for your confirmation and, if necessary, perform multiple rounds of optimization.
Following sample confirmation, production moves to the stable supply phase. We utilize fully automated processes and quality control, conducting both comprehensive and random inspections of finished products to ensure batch consistency.
6. Packaging and Delivery
Each TCT sampling brush features individual sterile packaging; custom outer packaging is also available.
Delivery options include sea freight, air freight, and express shipping, with full support for export customs documentation.
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