About Pinnaculum

Connecting the science to the technology.

Pinnaculum is a founder-led engineering and technical advisory practice working at the intersection of physical systems, physiology, computational modeling, and applied AI.

The practice brings hands-on development experience and scientific understanding to technology challenges across healthcare, energy, and advanced systems.

Founder & Principal

Derek Rinderknecht, PhD

Engineering · Modeling · Applied AI · Technical Strategy
Every engagement provides direct access to Derek Rinderknecht, PhD, for technical thinking, problem solving, and project direction.

Derek Rinderknecht, PhD brings 15 years of industry experience spanning engineering, technology development, computational methods, and technical leadership.

Healthcare technology represents the deepest concentration of that experience, including medical device hardware, physiologic sensing, signal processing, algorithm development, clinical validation, and scientific publication.

Experience in energy and other engineered systems broadens the practice’s perspective. Across these domains, the common thread is understanding the underlying system, developing an appropriate technical approach, and evaluating its performance against evidence.

Pinnaculum offers that combination through focused technical engagements, development support, and senior advisory relationships.

Hands-on development experience

From physiology to product.

Derek Rinderknecht, PhD designed the hardware and algorithm underlying the Vivio System, bringing together cardiovascular physiology, instrumentation, signal processing, and computational methods.

Related professional experience includes clinical validation and scientific evidence development, connecting technical performance with the questions that matter when evaluating a clinical technology.

How the practice works

From first principles to validated technology.

01 / UNDERSTAND

Start with the underlying system.

Examine the physics, physiology, measurement conditions, and practical constraints that define the problem.

02 / DEVELOP

Connect mechanisms with data.

Combine engineering, computational modeling, signal processing, and data-driven methods according to what the problem requires.

03 / EVALUATE

Build evidence for the next decision.

Assess performance, investigate limitations, and use the findings to guide development, validation, and product strategy.

Work with Pinnaculum

Bring the difficult technical question.

Whether you need to develop a measurement system, evaluate a computational model, or determine the next step for a technology, start with a conversation.

PINNACULUM

Engineering, computational modeling, applied AI, validation, and technical strategy for complex real-world systems.

Contact info@pinnaculum.com
Pinnaculum, LLC
411 E Huntington Drive, Suite 107-128
Arcadia, CA 91006
© 2026 Pinnaculum, LLC. All rights reserved. Founder and Principal: Derek Rinderknecht, PhD