Field Notes.

August 1, 2026

Peak Energy Picked the Weaker Chemistry. Then It Deleted the Cooling System.

Peak Energy is building America's first sodium-ion grid storage factory outside Sacramento, with General Motors behind the cells. Sodium-ion holds less energy per kilogram than lithium, which matters in a car and not at all in a steel box in a field, and that lower density is what lets Peak cool the system passively and skip refrigeration entirely. Dave on why the spec you agree to lose on is a product decision rather than an engineering one.

July 31, 2026

Momentis Built Its Own Predicate, Then Spent It Three Times

Momentis Surgical's Anovo is now cleared for natural orifice, single-port, and multiport access on one platform. It got there because its first authorization was a De Novo, which made it the predicate for everything it filed afterward. Dave on why Galen learned the same lesson the hard way.

July 30, 2026

ENvue’s Feeding Tube Robot Came Second. That’s the Product Decision.

ENvue Medical unveiled a robotic feeding tube placement system this week, and the robot is the least interesting part of it. The company already had the underlying navigation platform 510(k) cleared, running in US hospitals, and backed by published outcome and cost-avoidance figures. Dave runs the announcement through his four gates for a medical robot idea and flags the one word that needs tightening before a submission.

July 29, 2026

How the Indication Sentence Decides Your 510(k)

NeuraNova cleared a 510(k) for a bioimpedance device that reads fluid asymmetry inside the skull. The clearance turned on a tightly scoped indication sentence that aids an assessment rather than diagnosing anything. Why that sentence is product strategy, not regulatory paperwork, and why the founder owns it.

July 28, 2026

The Pentagon Rewrote the Drone Supply Chain. That’s a Product Requirement.

The Pentagon's drone chief put hard numbers on how far US output sits behind Ukraine's. Four days earlier, his own department tightened the sourcing rules that make catching up harder. The operator lesson: a buyer's sourcing restrictions are design inputs, and they arrive on the buyer's schedule.

July 27, 2026

Sartorius Got Its Tariff Money Back. It Handed the Refund to Customers.

Sartorius recovered 26 million euros of US tariff payments and is passing the money back to customers, taking a visible hit to reported growth to do it. The market shrugged, correctly, because a 30 percent margin makes that gesture cheap. The same cost shock lands on a hard-tech startup as a pricing problem it already committed to.

July 26, 2026

Vicarious Surgical Raised $425 Million and Never Reached a Submission

Vicarious Surgical raised more than $425 million, won the first breakthrough device designation the FDA ever granted a surgical robot, and wound down this week without ever reaching a submission. The tell came a year earlier, when it canceled its clinical trial so the commercial design could catch up. Dave led the De Novo effort at Galen with a fraction of that money.