Stories and Insights

Person using a body-powered hook terminal device to write on paper

75 Years of the Same. Until Now.

A leading researcher mapped every barrier that's kept body-powered terminal devices unchanged for 75 years. At Marins, we built through them.

75 Years of the Same. Until Now.

A leading researcher mapped every barrier that's kept body-powered terminal devices unchanged for 75 years. At Marins, we built through them.

A 1940's era car image representing the evolution from older APRL-era design to the modern ProHensor.

Is the ProHensor Like the Old APRL?

A brief look at how the ProHensor relates to the old APRL, including cineplasty, limited grip strength, cast aluminum, and why modern durability and serviceability matter.

Is the ProHensor Like the Old APRL?

A brief look at how the ProHensor relates to the old APRL, including cineplasty, limited grip strength, cast aluminum, and why modern durability and serviceability matter.

Patent drawing of David W. Dorrance’s 1912 split hook prosthetic design, precursor to the Hosmer hook.

Could Dorrance Have Imagined His Hook Would Las...

Dorrance’s 1912 hook set the standard for prosthetics. Marins’ ProHensor® VCAL honors that legacy with modern strength, control, and innovation.

Could Dorrance Have Imagined His Hook Would Las...

Dorrance’s 1912 hook set the standard for prosthetics. Marins’ ProHensor® VCAL honors that legacy with modern strength, control, and innovation.

Lab Data and Lived Experience: How User Testing Shaped the ProHensor

Lab Data and Lived Experience: How User Testing...

Designing a body-powered prosthetic that works in the clinic and in daily life requires two truths at once. The device must survive quantified bench tests, and it must feel right...

Lab Data and Lived Experience: How User Testing...

Designing a body-powered prosthetic that works in the clinic and in daily life requires two truths at once. The device must survive quantified bench tests, and it must feel right...

From Months to Minutes: How Swappable Cartridges Boost Uptime in Body-Powered Prosthetics

From Months to Minutes: How Swappable Cartridge...

Service downtime is not a minor inconvenience for upper-limb users. It can mean lost work, lost independence, and real frustration. The ProHensor® tackles the problem with a user-swappable cartridge system...

From Months to Minutes: How Swappable Cartridge...

Service downtime is not a minor inconvenience for upper-limb users. It can mean lost work, lost independence, and real frustration. The ProHensor® tackles the problem with a user-swappable cartridge system...

Why 0.0005-Inch Tolerances Matter in Mechanical Prosthetics

Why 0.0005-Inch Tolerances Matter in Mechanical...

When you rely on a body-powered terminal device to work, precision isn’t a luxury. It’s the point. In this post, we unpack how design intent, tolerance stack-ups, and design-for-manufacturing (DFM)...

Why 0.0005-Inch Tolerances Matter in Mechanical...

When you rely on a body-powered terminal device to work, precision isn’t a luxury. It’s the point. In this post, we unpack how design intent, tolerance stack-ups, and design-for-manufacturing (DFM)...

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