Frequently Asked Questions
What is the ProHensor, and how is it different from other prosthetic hooks or devices?
The ProHensor is a body-powered prosthetic terminal device designed for real-world use. It offers more control and versatility than a traditional split hook—and with the optional LockCore accessory, you can lock your grip in place without constantly pulling on the harness. It was designed by an upper-limb amputee who wanted a tool that could handle hands-on work.
Is the ProHensor easy to use?
Yes. If you've used a body-powered prosthetic before—especially a voluntary-closing device—the learning curve is short. If you're switching from a voluntary-opening device, there may be a small adjustment period, but most users find the ProHensor more intuitive. Your prosthetist can walk you through the basics.
Is it covered by insurance?
Coverage depends on your plan. The ProHensor VC is a body-powered terminal device, which is typically a covered category. The LockCore accessory is newer, and coverage varies—workers' compensation plans may be more likely to cover it than Medicare. Your prosthetist can help determine what applies to your situation.
Can I switch between the ProHensor and my current prosthetic?
Yes. Many people use more than one device depending on the task. The ProHensor is designed to swap in and out of your existing setup easily.
Will I need to see a prosthetist to use the ProHensor
We recommend it. A prosthetist ensures the best fit and comfort—and can confirm it works for your anatomy, including shorter residual limbs. That said, the ProHensor is user-friendly and easy to maintain with some guidance.
Is it a good option if I've never used a prosthetic before?
Yes. It's a great starting point—more affordable than myoelectric options, easier to maintain, and gives you solid, reliable control without a steep learning curve.
How is it different from a myoelectric hand?
Myoelectric hands use motors and batteries. The ProHensor is fully mechanical—no charging, strong grip, more durable, and easier to maintain. It's especially well-suited for work and hands-on tasks.
How do I get one?
Work through your prosthetist, or contact us directly if you're not connected to a clinic. We'll help you get started either way.
Can I use it for tough jobs—yardwork, construction, dirty environments?
Absolutely. The ProHensor was built for real-life, heavy-duty use. It's easy to clean and strong enough for physical work.
What if it breaks? How long does it last?
The ProHensor is built to last years with regular use. It's designed to be serviceable—most issues can be addressed by your prosthetist with standard tools. If a part like the LockCore cartridge wears out, it's easy to replace without much downtime.
What are the clinical indications for the ProHensor VC?
The ProHensor VC is indicated for upper-limb amputees who need a durable, voluntary-closing terminal device for functional daily use. It's especially well-suited for patients engaged in manual work, and for those who may have abandoned previous devices due to fatigue or lack of fine control. The VC offers enhanced proprioceptive feedback and intuitive grip modulation.
When should I consider adding the LockCore accessory?
The LockCore is ideal for patients who need to maintain grip without continuous cable tension—reducing fatigue during sustained holding or carrying tasks. It's a good fit for patients doing repetitive work, overhead tasks, or anyone who struggles with harness strain over the course of a day. The LockCore can be added at initial fitting or later as patient needs evolve.
How does the ProHensor differ from a standard Hosmer hook?
The ProHensor VC is voluntary-closing rather than voluntary-opening, giving users more natural grip control. With the LockCore accessory added, users can also lock grip in place and release it with a simple, intuitive movement. Grip performance supports up to 30 kg. The system was developed with input from long-term users and designed for durability and field-serviceability.
Is it compatible with standard components and harness systems?
Yes. Both the ProHensor VC and the VC with LockCore integrate with standard wrist units, cables, and body-powered harness systems. They fit most existing configurations with straightforward fittings and adjustments.
How do I order for a patient?
Reach out to request our order form—it includes pricing details and coding suggestions for both the ProHensor VC and the LockCore accessory.
Can it be serviced in-clinic?
Yes. Both the VC and the LockCore are designed for in-clinic maintenance using standard tools. The LockCore cartridge should be checked or replaced annually—supporting ongoing patient relationships.
What training and resources are available?
We offer patient education materials including video tutorials and quick-start guides for both the VC and LockCore. Clinician-facing resources cover fitting, reimbursement, and patient training. As adoption grows, we'll expand access to peer training and certified clinician programs.
What HCPCS codes apply?
The ProHensor VC aligns with L6722. The LockCore accessory aligns with L7499. Refer to our reimbursement guide for documentation guidance and payer-specific considerations.
Can patients purchase directly?
Currently, all orders go through prosthetists and clinics. If a patient reaches out to us, we're happy to help connect them with a provider in their area.
What sets Marins apart?
We prioritize user-centered design. Our CTO is a 35-year upper-limb amputee who helped design the ProHensor from lived experience. The ProHensor VC delivers reliable voluntary-closing function, and the LockCore accessory adds auto-locking capability when patients need it. Both are field-serviceable—the LockCore cartridge is designed for annual check-up, supporting the ongoing relationship between prosthetist and patient. We focus on practical innovation: devices that improve daily life and can be sustained over time.