Product News 11220

Microscopes

Designed specifically for use with compact CCD video cameras, the VZM Video Zoom Microscopes screw directly to C-mount camera heads. The cylindrical microscope head is 40 mm in diameter. A smooth parfocal zoom allows the user to vary magnification quickly without re-focusing during observation.

The units can be mounted in a wide variety of configurations using modular mounting components or they can be built into specific equipment. The VZM microscopes have a compact design, an economical price, and display a true erect image.

Edmund Scientific Co., Industrial Optics Div., Dept. B971, N999 Edscorp Bldg., Barrington, NJ 08007, FAX (609) 573-6233.

Tubing

Tygon(R) 2075 specialty thermoplastic medical tubing has no plasticizers and offers low sorption and adsorption. There is virtually no absorption of key fluid constituents into the tubing material or fluid adsorption onto the tubing walls. As a result, fluid alteration and loss is limited. Uses include endoscopy, administration of chemotherapy agents, or other applications for circulating blood or body fluids. In endoscopic devices, the tubing's smooth, non-wetting surface prevents the formation of fluid "pockets" assuring complete delivery of irrigation fluid volume.

Norton Performance Plastics Corp., Wayne, NJ 07470, FAX (330) 798-6968.

Cable

Enduroflex^TM electrical cable retains flexibility in tough environments from -50 to 105C. It exceeded 1,000,000 cycles in a torsional-flex and bend-radius test, meets UL 62 Class 36 insulation qualifications, passes VW-1 and FT-1 flame tests, resists many chemicals, is sunlight resistant, maintains its aesthetic appearance, and is recyclable.

Northwire Inc., 100 Industrial Dr., Osceola, WI 54020.

Foam

Polydamp(R) Melamine Foam (PMF) is a lightweight acoustical thermal insulation product for aircraft, aerospace, marine, and medical applications where low flame spread and minimal smoke generation is a requirement. PMF does not drip when ignited and stops burning when the ignition source is removed. The material produces minimal flame and smoke, offers heat resistance up to 375F, and is stable in harsh environments.

Polymer Technologies Inc., 420 Corporate Blvd., Newark, DE 19702, FAX (302) 738-9085.

Photomicrosensor

EE-SPX613 photomicrosensor is for liquid-level detection in the semiconductor, medical, and pharmaceutical industries. Suitable for sensing liquids in any 6 to 13 mm diameter transparent or semi-transparent pipe with a wall thickness of 1 mm, the unit incorporates a talc-free cord, allowing use in clean-room environments. The tie wrap and rubber tube packaged with the sensor allow easy installation and prevent the sensor from slipping.

Omron Electronics Inc., 1 East Commerce Dr., Schaumburg, IL 60173, FAX (847) 843-7787.

Displays

TrueGrey electronic display systems incorporate calibration technology providing accurate grey-scale performance, an important feature for digital transmission of medical images between different sites. A range of color medical displays offers clear-base/blue-base medical-film simulation function allowing the viewer to see the diagnostic information displayed in the preferred color mode. Uses include medical imaging applications that require accurate greyscale images and long-term color stability, including Ultrasound miniPACS and computed tomography.

BARCO Inc., Chromatics Div., 2558 Mountain Industrial Blvd., Tucker, GA 30084, FAX (770) 492-5101.

Transducers

Series 230 linear-displacement transducers accurately measure absolute position in a miniature package. With an outer diameter of 0.375 inches and maximum non-linearity of 0.25%, these ac LVDTs are available in eight separate displacement ranges from 0.01 to 2.00 inches. The small size of the coils combined with the ultra-light core make these sensors suitable for applications requiring high accelerations or which are easily affected by the mass of the sensing element. Applications include spool-valve displacement, medical equipment, gauging fixtures, and other industrial applications requiring a precision absolute-displacement measurement.

Trans-Tek Inc., Box 338, Ellington, CT 06029, FAX (860) 872-4211.

Rubber parts

Liquid Silicone Rubber (LSR) parts and seals are offered with fast turnaround and competitive prices, depending on the complexity of the part. The seals are produced in a microprocessor-based, closed-loop system. The process minimizes raw-material contamination by eliminating exposure to the environment. Virtually any type of silicone part or seal is available in a durometer range of 20 to 70 Shore A, including O-rings, gaskets, face seals, housing seals, filter seals, and custom shapes. Applications include the medical and electronics industries.

Apple Rubber Products Inc., 310 Erie St., Lancaster, NY 14086.

Actuator

In most applications a limited-angle dc rotary actuator acts as a control drive, saving customer costs by eliminating the need for a separate control drive system. The size 34 motor is configured for applications requiring fast operation. Motion is limited to 45 degrees, making it suitable for medical devices requiring dependable valve regulation or industrial processing equipment involving on/off switches.

Eastern Air Devices Inc., 1 Progress Dr., Dover, NH 03820, FAX (603) 742-9080.

Pump

3004 double-diaphragm miniature pump meets low-cost, low-pulse, and contaminant-free air-compression oiless-pump requirements. Medical applications include blood-pressure measuring devices. The 3004 provides a flow capacity up to 2 liters per minute and a maximum pressure of 7.25 psi and measures 18 x 34 x 64.5 mm.

ASF Thomas, 2100 Norcross Pkwy., Norcross, GA 30071, FAX (770) 242-0331.

Pins

A wide range of pins, probes, points, needles, formed wire, and many other instrument styles for use in a variety of medical, surgical, and research applications are available. All units are highly polished and fabricated to user specifications in 300 to 400 stainless steel. Sizes can range from 1/4 inch to 12 inches in length, and 0.007 to 5/16 inch in diameter with tolerances of plus or minus 0.0002 inch.

W.H. Bagshaw Co. Inc., Box 766, Nashua, NH 03061.

Circuit board

Ceramic Power Board combines the thermal and mechanical features of ceramics with the electrical and thermal advantages of pure-copper metalization. This combination allows engineers to reduce size and increase power-circuit density. The board utilizes a manufacturing process that produces multiple layers of plated copper allowing current in excess of 50A to be carried.

Remtec Inc., 51 Morgan Dr., Norwood, MA 02062, FAX (617) 762-9777.

Clamps

Suitable for clamping lines as small as 3.3 mm OD, a line of miniature clamps includes three styles. The clamps are for tamper-proof connections in service applications, and are currently being used in the medical appliance field.

Oetiker Inc., Box 217, Marlette, MI 48453, FAX (517) 635-2157.

Dyna-Thred process

The Dyna-Thred process can now be used to process tiny "O" size screws for self-locking purposes. The breakthrough came when company engineers had to develop a technique that used a titanium screw for an "in-the-body" piece of medical apparatus. The Dyna-Thred process was selected because it provides self-locking capability without the addition of extraneous materials such as nylon or polyester. The micro Dyna-Thred part has temperature characteristics of -400 to 1,200F and reusability per IFI 124 and MIL F-8961.

Long-Lok Fasteners Corp., 10630 Chester Rd., Cincinnati, OH 45215, FAX (513) 772-1888.

Training case

A completely self-contained training case includes a custom-cut space for equipment and attachments utilized in hospitals and other institutions to train personnel. Equipped like a full hospital room, the custom compact case includes a simulated equipment room. It is made of durable, high-impact, high-density polyethylene. Each piece of medical equipment is fitted within recessed areas for easy utilization and professional appearance. The case includes a full aluminum frame.

Chicago Case Co., 4446 S. Ashland Ave., Chicago, IL 60605, FAX (800) 333-8172.

Heat exchangers

The 730 Series heat exchangers are for medical and industrial lasers, cooling semiconductor manufacturing equipment, test equipment, electronics, and industrial furnaces and ovens. Available from stock, the units are constructed of 316 stainless steel which is mechanically bonded to heat-transfer-efficient riffled and corrugated copper fins. The frame for each 730 Series product is fabricated aluminum with gold-irridite finish complete with fan plenum and mounting fixtures.

Thermatron Engineering Inc., 300 Cummings Center, Suite 232C, Beverly, MA 01915, FAX (508) 922-1687.

Silicone extrusion

Custom silicone rubber components for medical-device OEMs include custom tubing and extruded-profile fabrication capabilities. From the design-assistance stage through manufacturing and assembly, the company can accommodate a variety of extruded and coextruded profiles with up to