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Transfer and filter devices



Filters & Filtration Materials



Transfer and filter devices

An FDA-registered, ISO 9001—certified manufacturer of disposable medical devices offers a complete line of transfer and filter devices for a variety of fluid-transfer applications. The line includes the Mini-Spike dispensing pin for preparing and dispensing diluent or additive from multidose rubber-stopped vials and the Micro Chemo pin with a 0.2-µm hydrophobic air-venting filter that prevents exposure to toxic fumes during drug reconstitution. Other products include filter needles, vented needles, double-ended transfer needles, air-venting filters, hydrophilic in-line cone filters, and filter hubs in a variety of configurations. Burron OEM Div., B. Braun Medical Inc., P.O. Box 4027, Bethlehem, PA 18018.


Filter converting

Porous PTFE and Pall membrane are typical materials that a company converts to filters for sensitive medical applications. The company has a Class 1000 cleanroom and a temperature-controlled, low-humidity dry room for particularly sensitive medical applications. The company also provides slitting, laminating, and sheeting services. G&L Precision Die Cutting Inc., 1766 Junction Ave., San Jose, CA 95112.


IV filters

A worldwide manufacturer offers a complete line of IV filters and devices for adult and pediatric applications. The filters are available in 0.2- and 1.2-µm pore sizes. Unique requirements can be satisfied with custom-designed products. Other products include blood filters, lab and diagnostic filters, and respiratory filters, as well as other devices. The filters are manufactured in Class 100,000 cleanrooms in an ISO 9000—certified facility. Filtertek Inc., 11411 Price Rd., Hebron, IL 60034.


PTFE membranes

PTFE membranes are available from a company's broad range of hydrophobic and oleophobic media. The PTFE membranes are microporous and repel low-surface-tension liquids while venting gases. Because it is an effective barrier to microbes and particulate matter with high titer reductions, the product is suitable for use in a variety of medical applications, such as transducer protectors, IV vents, suction canister vents, urine bag vents, and package vents. Pall Corp., 25 Harbor Dr., Port Washington, NY 11050.


Snap-fit IV vents

A company offers a hydrophobic/oleophobic vent medium for snap-fit IV vents. The FiltaVent OGF 20 offers high bacteriological efficiency with low pressure drop. It is a suitable choice for water and fat/lipid—based IV vent applications and further expands the company's range of vents and other medical media. Whatman International, 6 Just Rd., Fairfield, NJ 07004.


Filter assemblies

Plastic filter assemblies are available in a variety of materials, sizes, and element efficiencies. Completely disposable filters and adsorbers consist of permanently welded housings with encapsulated microfiber elements or granular adsorption material with integral inlet and outlet filter pads. The 700 series of plastic housings can be used for coalescing, particulate, and liquid filtration. An added benefit is the use of the manufacturer's standard borosilicate microfiber elements, which offer good filtration efficiency at very low pressure drops and, being greater than 90% void volume, give long service life. United Filtration Systems Inc., 34062 James J. Pompo Dr., Fraser, MI 48026.


Filter media

A company offers a variety of filter materials including glass-microfiber, cellulose, synthetic, laminated, and composite media. Versatile finishing capabilities include custom converting of rolls, sheets, and die-cuts as well as laminating and packaging. Materials can be designed to meet specific requirements. Ahlstrom Filtration Inc., 122 W. Butler St., P.O. Box A, Mt. Holly Springs, PA 17065.


Filter materials

Custom-fabricated components and roll goods are made with precision-woven medical fabrics. Fabric performance is enhanced with special custom coatings and plasma treating. The company's products are suitable for use in medical filters. Saati Tech Inc., P.O, Box 543, Somers, NY 10589.


Hydrophilic filters

A company offers a complete line of filters for in-line filtration of IV solutions. The filters have a 0.22- or 1.2-µm polythersulfone membrane and can be supplied with luer-lock or luer-slip connectors. The filters can be used in pediatric patient infusions, epidural procedures, and lipid filtration. All have high flow rates, low drug binding, and microbial retention. DirectMed Inc., 11 Lowell Rd., Port Washington, NY 11050.


Solid support/filtration media

Many diagnostic kits and analytical testing devices use a paper or membrane product as an integral component. Such widely used supports include pure nitrocellulose membranes, 903 specimen collection paper for the absorption and testing of blood and other liquid samples, modified cellulosics, and a wide range of qualitative and quantitative filter papers. A company's media, designed to address the requirements of solid-phase technology and new product production, are available as experimental samples. Laminated and impregnated supports, glass fiber filters, and other solid-phase media and filters are available on request for evaluation and testing. Schleicher & Schuell, P.O. Box 2012, Keene, NH 03431.


IV filter

A filter removes microorganisms and particles larger than 1.2 µm from total nutrient admixture (TNA) emulsions with lipids. The filter has a polyethersulfone membrane for compatibility with TNA emulsions. It features a superhydrophobic vent for air elimination, and it can be sterilized by EtO, gamma, or E-beam. Millipore Corp., 80 Ashby Rd., Bedford, MA 01730.


Microfilter

Suitable for a variety of low-pressure air and low- to high-vacuum applications, a microfilter can use a variety of filter media, from 500 to less than 0.1 µm, including virus removal capability. The Hydrocheck features a large 25.8-cm2 effective filter area and allows high airflow with low resistance. Hydrophobic properties allow free passage of air while stopping fluids. Graduated hose barb connections (0.250—0.375 in.) are standard. The high-clarity plastic housing allows users to verify filter integrity, the presence of contamination, and when it's time to change the filter. Performance Systematix Inc., 8196 Broadmoor Ave. S.E., Caledonia, MI 49316.


Laminates for medical venting

A company provides ePTFE laminates for medical venting applications. The Gore-Tex laminates can be incorporated into transducer protectors, IV filters and spike vents, urine and ostomy bags, respiratory filters, and suction canisters. The company assists in determining the appropriate laminate for specific applications. W.L. Gore & Associates Inc., P.O. Box 1550, Elkton, MD 21922.

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