Medical DeviceQualified Supplier Directory

Uson LP

8640 North Eldridge Parkway
TX  77041  us
Tel: 281/671-2000
Fax: 281/671-2001

Uson is a manufacturer of automated leak detection equipment for the medical device and the pharmaceutical packaging industries. We have more experience in these specialized fields than any other company in the world. Headquartered in Houston, Texas we are able to provide leak test solutions to all parts of the globe.

Leak Testers and Leak Detection Solutions for Medical Device Manufacturers


Uson is the pioneer that used technology first developed for NASA and applied it to a variety of leak detection and testing applications in the medical device and pharmaceutical packaging industries.

Uson leak testers are the instruments of choice for medical device manufacturers around the world. With an installed base of thousands, we help you deliver safe, reliable products and protect you from costly recalls. 


You want more than just premium quality products. Uson gives you:

  • Technically knowledgeable people with 25+ years of experience
  • Unrivaled leak testing expertise and knowledge gained over 50 years
  • Customer driven designs for ease of use and proven technology
  • Global network of leak testing experts
  • ISO 9001 and AQDEF Q-DAS Certifications, good understanding of GMP and validation

From aspirators to valves and all other medical devices in between, we help manufacturers perform leak testing using the widest selection of leak detection equipment available from any single source.

Our in-house manufacturing and calibration capabilities give us unsurpassed experience in designing customized test solutions for automated or semi-automated leak detection systems. Look to Uson for lifetime support for your leak testing solution.


Sprint iQ Leak Tester from UsonSprint iQ: The best selling leak tester for medical device applications. Ease of use and simple validation has led to the global success of Uson’s Sprint iQ Leak Tester. This bench top leak tester is ideal for the medical industry. It can perform 13 types of tests for devices such as catheters, tube sets and other medical products. 

Single or Multi-Channel, leak, flow, burst and occlusion testers. Concurrent or sequential leak testing with up to four channels. The Sprint iQ contains a compact footprint and inclined front panel making the unit perfect for bench top operation. Comprehensive communication options also make the Sprint iQ simple to integrate with peripherals or automation equipment.

With thousands of units installed around the world, Sprint leak testers are the gold standard in the medical device leak testing industry.

  • Single to four channels
  • Color graphic display
  • Volumetric leak rate compensation and calibration
  • Storage for up to 99 test programs
  • Small footprint saves clean room space

Optima vT Leak Tester from UsonOptima vT: Leak Detector Versatility -- Optima vT offers Uson’s industry-leading reliability and advanced leak testing technology in a highly configurable and versatile package. A comprehensive user interface puts control and information directly at your fingertips via the large, clear touch screen display.

At the heart of the Optima vT is Uson’s powerful TCU2, the second generation Test Control Unit offering unparalleled flexibility in a single test channel. TCU2 allows up to four high resolution sensors and with its available custom pneumatic configurations, the sky is the limit on your lead and flow test design creativity.

With a choice of one or two test channels, optional enclosures, a wide range of test types and custom pneumatics, the Optima vT takes versatility in leak testing to a new level. For the most demanding applications, choose high flow valves for fast filling larger volumes, or specify Uson’s proprietary differential pressure transducer for utmost sensitivity and repeatability. Even use two channels to test two cavities or parts simultaneously to reduce cycle time. With Optima vT, you’re in charge.

  • 15″ Diagonal 1280 x 960 Color Touch-Screen
  • 1 or 2 Channel
  • Up to 4 Sensors per Channel
  • Up to 225 psig/15 bar differential
  • NIST Traceable

Qualitek mR Leak Tester from UsonQualitek mR: An affordable high quality leak tester that sets a new benchmark of accuracy and dependability for light to medium-duty applications. Qualitek mR combines the latest advances in multi-range (mR) testing technology with the expertise and reliability of one of the premier names in testing.

For many years, Qualitek has been the proven standard for fast, reliable leak testing in industrial markets. Today’s new mR line combines the best features of predecessors into one efficient and easy-to-use tester. Backed by Uson’s world renowned reputation, Qualitek mR sets a new benchmark of accuracy and dependability.


  • 8.5" Dia. 640 x 480 Color Backlit LCD
  • 8 outputs, 16 inputs – option
  • 5 outputs, 11 inputs – standard
  • 100 Test Programs
  • Touch screen display
  • Single channel with up to two sensors

Qualipak Leak Tester from UsonQualipak: Unique non-destructive leak tester for flexible packages. A superior solution to the problems of destructive testing of flexible packaging, Uson's Qualipak package testers test a wide selection of flexible packs in the food, medical and pharmaceutical industries.

Qualipak flexible package testers are non-destructive, designed for the manufacturing environment, and offer objective and quantifiable measurement as well as ease of use. All Qualipak flexible package integrity testing systems deliver clear objective results. No operator interpretation is necessary.

Package quality and productivity are improved by analyzing test data available when using the optional SPC-PCIV software package. Trends are identified allowing for corrective action or scheduling maintenance for the packaging line.

  • Non subjective replacement for immersion testing
  • Easy to use
  • Built in data storage
  • Clean and dry

Uson Innovative Leak Test Systems (UIS)Uson Innovative Leak Test Systems (UIS): Uson Innovative Systems (UIS) are precision engineered leak test systems for manual, semi-automatic and fully automated leak testing. For decades, these systems were known as PREX. Uson has expanded its capabilities to a whole new level and now can design and manufacture leak detection equipment to customer requirements ranging from a simple fixture or quick connect coupling to complete systems including product delivery, sealing, clamping, test and marking.

  • Pressure decay test
  • Vacuum test
  • Differential pressure test
  • Functional test
  • Fixtures: Manual, pneumatic, hydraulic
  • Control: PLC or relay

USON Raptor: Manufacturers who need a fundamental, single-channel pressure decay leak tester can turn to Uson with its latest innovation, Raptor. Armed with a color, touch-screen interface and an independent HMI utilizing Bluetooth, Raptor is configured smartly in a compact unit. Inside, the rugged duty, long-life Stallion Manifold block boasts a 50,000,000-cycle lifespan. The 24-bit A/D converter combined with superior algorithms allows for fast and repeatable testing. All pneumatic components and sensors have undergone extensive performance and durability testing.

The Uson App, available for download at, allows you to quickly and easily set up and tune your Raptor leak tester. It pairs easily with standard Android or iOS devices using a Bluetooth 3.1 interface. Without a doubt, Raptor sets a new standard by which future testers will be measured.

Visit our site for more information on Uson’s full line of leak testers.

Additional Offices

Western Way
Bury St Edmunds, SFK  United Kingdom
Tel: +44 1284 760606
31471 Utica Rd
Fraser, MI  United States
Tel: 248/589-3100
Room 1701 Suncome Liauw's Plaza
No. 738 Shangcheng Road
Pudong, Shanghai, 200120  China
Tel: +86 21 58365859