Bal Seal Engineering’s springs, seals, and contacts help improve the performance and reliability of powered surgical tools, orthopedic implants, pumps, monitors, active implantables, and other critical medical equipment. Our custom-engineered products enable designers to achieve higher speeds, longer service life, and more functionality in less space.
Products for Medical
Bal Conn® Electrical Contact
Our Bal Conn® electrical contact is the solution of choice for designers seeking to ensure consistent connection in implantable devices used to deliver neuromodulation and cardiac therapies. Due to its redundant contact points, the Bal Conn offers very low contact resistance. Its canted coils provide excellent resistance to fatigue and more design flexibility than any other implantable device interconnect technology.
Product Features
- Implantable, precision-machined metal housings
- Low-force, low-resistance spring contact elements
- Redundant contact points for reliable connectivity
- Miniature contact diameters ( .9mm and smaller)
Bal Seal® Spring Energized Seal
Our seals are precision-machined from PTFE and other premium polymers, and they’re engineered to deliver longer service life and more equipment uptime. Their spring energizers ensure even, consistent wear, and their jacket materials can be customized to meet specific temperature, pressure, speed and chemical compatibility requirements.
Product Features
- Controllable friction forces
- Excellent media and temperature resistance
- Wear-regulating spring energizer
- FDA compliant
SYGNUS® Implantable Contact System
The world’s first integrated seal and contact system for active implantable devices, SYGNUS® combines reliable Bal Conn® electrical contact technology with proven implantable-grade silicone isolation seals, resulting in a connector “stack” that can accommodate lead diameters down to 0.7 mm. The system’s contact element consists of a housing made from medical-grade MP35N® and a platinum-iridium or MP35N® Bal Spring® canted coil spring.
Product Features
- Integrated contact/seal design
- Multi-point conductivity
- Smallest pitch in the industry (~2mm)
- FDA compliant
Bal Spring® Canted Coil Spring
Our spring mechanically fastens, conducts electricity, and shields sensitive electronics from EMI/RFI. Its independent coils, which serve as multiple contact points for optimal current carrying capability, ensure consistent, reliable connection—even under shock and vibration.
Product Features
- Superior conductivity & power density
- Compact, space-saving profile
- Multifunctional for lighter, simpler designs
- FDA compliant
Medical Active Implantable Applications
SCS Device Lead Interconnects
Next-gen Bal Conn® electrical contacts offer reduced axial pitch that affords for increased connector density.
Inline VAD Connections
The SYGNUS® implantable contact system enables simplified inline connection of the VAD pump to its power source, allowing replacement of a lead segment with reduced patient risk.
Cardiac Lead Interconnects
Bal Conn® electrical contacts meet IS-4 standards for pacing and defibrillation, providing a proven lead interface solution and helping surgeons reduce procedure times.
Cochlear Device Lead Interconnects
Bal Conn® electrical contacts in a high-density array, can help reduce header/device size and boost functionality.
Medical Tools & Equipment Applications
High-speed Surgical Saws
Bal Seal® spring-energized seals protect motors (>15,000 RPM) from potential damage caused by ingress of bone fragments, fluids and saline.
Spinal Fusion Devices
Bal Spring® canted coil springs allow for locking and unlocking of device parts with precisely controllable forces.
Atherectomy Drive Units
Bal Seal® spring-energized rotary seals protect catheter drive motors (>15,000 RPM) from damage caused by fluid ingress.
Tibial Trials
Bal Spring® canted coil springs mechanically latch trial shims used to accurately size large joint replacements.
Technical Resources
Industry Catalog
Application Bulletin
Material Data Sheet
