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Hydrophobic PTFE Membrane Filter for Insufflation Gas – 99.99% Bacterial Removal Efficiency | China Suppliers & Factory
Product Introduction
The use of an insufflation gas filter helps prevent the contamination of equipment by miscellaneous debris that may be present in normal gas delivery. Such a filter also protects the insufflator should abdominal fluid or debris back up into the line. And the key to the optimal operation of an insufflation filter is for the PTFE membrane integrated in it to provide robust bacterial removal efficiency and meanwhile not to restrict flow to the patient.
The safe hydrophobic PTFE membrane filters we supply, offer 99.99% bacterial removal efficiency, helping prevent cross-contamination between patients and equipment, and protects against the dangers of reflux fluids from patient into the insufflator unit, offering both machine and patient protection.
The custom designed PTFE filter media, using PP/PET as substrates, employs a double-sided thermal bonding process, binder-free and contains no toxic substances. In addition to the general properties of PTFE membranes, such as naturally hydrophobic, biologically safe and great material compatibility, the laminated membrane features two-side hydrophobic PTFE, which means both faces of the membrane are PTFE, with exactly the same physical properties and desired performance, making both faces suitable for being used as working face and reducing assembly mistakes. This PTFE laminated membrane is reinforced and durable with a maximum service-life of 24 hours and meets various operating conditions. Easy and convenient for further processing and assembly, available in roll and precut circle forms.
Features
- Naturally hydrophobic
- Two-side PTFE membrane
- Bacterial retentive
- Broad chemical compatibility
- High and stable flow rate
- Liquid barrier with high WBT pressure rating
- High biosafety level
- 100,000 grade cleanrooms manufactured
- 100% Inspection
Specifications
| Specification Parameter | Details |
|---|---|
| Material | PTFE-PP/PTFE-PET |
| Thickness | 450μm or custom |
| Pore size | 0.2μm |
| Air flow rate | >400ml/min.cm2 @10Kpa |
| Water Break Through | >200 Kpa |
Warnings
Handle with care to avoid damaging the filter material.
Sterilization by irradiation is not recommended.
Do not use glue or cyclohexanone for joining with housing as it will clog the material itself, preventing gas from passing through.
Avoid contact with alcohol or highly permeable solvents, otherwise, the material will become hydrophilic before it fully dries.
Ordering Information
| Material Ref. | Pore Size | Thickness | Membrane Size | Lot No. |
|---|---|---|---|---|
| PTFEp | 022 | 45 | Custom | - |
Frequently Asked Questions
What is the primary function of the PTFE membrane in insufflation gas filters?
The PTFE membrane inside the insufflation gas filter provides high-efficiency bacterial removal (99.99%) while ensuring unrestricted gas flow to the patient. It prevents equipment contamination from debris and protects the insufflator unit from potential patient reflux fluids.
What makes the double-sided laminated PTFE membrane advantageous?
The laminated membrane features two-side hydrophobic PTFE, meaning both faces have the exact same physical properties and performance. This makes both sides suitable as working faces, which greatly reduces assembly mistakes during production.
Are there any chemical or bonding agents used in the filter media?
No, the custom-designed filter media employs a double-sided thermal bonding process using PP/PET as substrates. It is entirely binder-free and contains no toxic substances, ensuring high biosafety.
Can these PTFE filters be sterilized using irradiation?
No, sterilization by irradiation is not recommended for this PTFE membrane material.
Why should glue or cyclohexanone be avoided during housing assembly?
Using glue or cyclohexanone to join the membrane with the housing will clog the PTFE material, preventing gas from passing through and rendering the filter inoperable.
What are the standard specifications of the PTFE membrane?
The standard specifications include a pore size of 0.2μm, a thickness of 450μm (or custom), an air flow rate of >400ml/min.cm² @10Kpa, and a Water Break Through (WBT) rating of >200 Kpa.