Censis now reads da Vinci QR codes to count robotic arm uses

Before this past April, customers kept asking a senior customer success manager at Censis Technologies the same question: how do I count sterilization uses on da Vinci robotic arms without turning each arm into a tray? The answer was to mark the arm with a laser, an electrochemical etch or a key dot, then register it as a marked instrument. Since April, the presenter told CtUC 2026 attendees in a MarketScale-produced session, CensiTrac reads the QR code that already comes on the arm.

The presenter called the April release one of the most exciting things Censis had done in the past year and pointed attendees to a separate CtUC session, Bots and Managing Robotic Instrumentation Using CensiTrac, for the detail. It lands as Intuitive, the maker of da Vinci, keeps adding software to the robot itself: in September 2025 the company announced a first round of real-time features for da Vinci 5. It also lands as the FDA's unique device identifier rule puts a two-dimensional mark on more new instruments before they reach the department.

For a sterile processing director, the upgrade question is whether instrument-level tracking earns its cost over tray-level tracking. The session was built to help a base customer write that case, which the presenter called an SBAR, the situation, background, assessment and recommendation format hospitals use to put a request in front of leadership. Listing new screens and reports does not win that argument, the presenter said; naming the problems the upgrade solves does.

The robotic arm no longer needs a second mark

In CensiTrac, a use is one scan of an item to a sterilizer, counted against a ceiling the department sets. Base customers run uses on trays to time maintenance. Advanced moves the count down to the individual instrument, which is where a robotic arm with a fixed life belongs.

The code on the arm is a 2D matrix, a square barcode that stores an alphanumeric string. A technician scans it to commission the arm, meaning to register it in the system the same way as any other marked instrument, and sets the limit, whether 10 uses or 15. Each scan to the sterilizer then adds one use, and at the limit the system shows the arm as expired.

The presenter said maintenance parameters can also be set to stop an arm from exceeding its maximum number of uses and sterilizations. That ceiling is enforced at the sterilizer today, without waiting on anything from the robot's maker.

Two records exist for the same arm. Intuitive keeps a count of remaining lives, which the presenter said it makes available through an online application, and CensiTrac keeps its count of sterilizer scans. The presenter described the two as separate until a formal integration exists, said Censis is working with Intuitive toward one, and asked customers to push for it so a technician is warned when disposing of an arm that has no lives remaining or when processing an arm that has already reached end of life.

Nothing Intuitive has announced for the robot replaces that count. Its September 2025 press release on da Vinci 5 covered a Force Gauge that shows tip force in a 0 to 6.5 newton range, in-console video replay and Network CCM for remote software updates, all with FDA 510(k) clearance, the agency's finding that a device is substantially equivalent to one already on the market. None of those is a reprocessing use counter, so the QR scan does not duplicate what the robot now does.

Four menu buttons tell a department which tier it runs

The session opened with a poll, and the audience split about evenly between base CensiTrac and Advanced, with a third group that just calls it CensiTrac. The presenter's test for which tier a department runs takes one click. From the main menu, open Inventory: if Instruments, Instrument Search, Substitutions and Par Levels appear, Advanced is already active.

Active is not the same as used. Buttons that show light blue or grayed out mean the function was never switched on for that access level, which a manager fixes under Administration and Access Levels. If the four buttons are absent altogether, the system is base.

Advanced adds five functions to a base system: instrument search, substitutions, par levels, marked assembly and instrument-level inventory. A product listing on IntuitionLabs describes CensiTrac as the first surgical instrument tracking system built to track assets down to the individual instrument and puts Censis in more than 1,300 hospitals in the United States, Canada and Australia. Censis's own April 2021 blog post on the upgrade lists instrument-specific maintenance, utilization records, location histories and integrity testing as what the Advanced tier carries.

Marked assembly trades the green button for a scan

Marked assembly changes one gesture at the assembly station. On a base system a technician builds a tray against a digital count sheet and presses a green button to acknowledge each required instrument. With marked instruments the technician scans the 2D mark instead, and the system records which specific instrument went into which tray and when.

The software does not slow the build to do it. The presenter's example was a Rochester, a type of hemostat: scan any marked Rochester and the requirement is met, but the record keeps the identity of the one used. That is how a department later answers which Rochester went into a tray on September 15 at 12:11 p.m.

The scale of what that catches shows up in a 2021 paper in BMJ Quality & Safety by researchers at the Medical University of South Carolina and Clemson University. At a 700-bed academic hospital, they analyzed 3,900 operating room reported tray defects from July 2016 to December 2017 and found most occurred in assembly, affecting 5% of 41,799 surgical cases. Missing instruments were the most common assembly defect at 17.6%, or 700 reports.

The presenter's pitch for marked assembly was to never send up a tray missing a critical instrument. The BMJ authors concluded that reliable reprocessing requires a well-designed instrument tracking system and standardized nomenclature, alongside coordination between sterile processing and the OR and trained technicians. The study predates the features in this session and did not test CensiTrac, so it sizes the problem rather than the product.

Substitutions are the other half of the assembly change. A base system shows allowed substitutes only after a technician clicks the action button and opens a pop-up; Advanced adds a subs column at assembly that shows a count next to each instrument. A zero means stop looking, a two or a five means click through to the approved alternates.

Those substitutes come from two places. A facility builds its own through the product catalog, and Censis can switch on a global cross reference of substitutes it has validated for general instrumentation. The presenter said turning on the global list adds to what a facility built rather than replacing it, and leadership keeps control over which substitutions are allowed.

Clinics asked for tracking to prove sterile processing was not at fault

Many departments still mark clinic instruments with tape: pink for women's health, green for podiatry, blue for a campus nursing station at a teaching hospital. The presenter likes the colors and said tape has to go. The replacement under Advanced is a 2D mark on each clinic instrument and an owner field set when it is commissioned.

Scanned in the peel pack module, a marked scissor comes up as owned by podiatry or owned by the college nurses' station. A peel pack is a single instrument sealed in a pouch for sterilization. With Advanced, the owner or the storage location prints on the peel pack label, so the technician putting it away knows whether it goes into the tote for the university nurses' station, into the end-of-day round through the medical office building clinics, or back on the OR shelf.

Before the session, Censis ran voice of the customer interviews with facilities that support a lot of clinics, and the answers surprised the presenter. Customers told Censis they want clinic tracking mainly to prove sterile processing did not lose the instruments.

A daily report of items sent to each clinic, and a scan record of what came back, makes that case to the head of podiatry or the college administrator whose budget should carry the loss. The presenter put the fourth bullet on the slide plainly: never pay for inventory loss by a clinic. The same scans locate a missing peel pack the way a department already locates a tray, and they end the habit of sending back everything a clinic might have owned, which is how a clinic ends up with a drawer of retractors when it needed one.

Par levels turn bandage scissors into a daily work list

A par level is the count of an item a location is supposed to hold, and in CensiTrac Advanced it applies to trays and peel packs by location. The presenter's running example was an emergency department that must keep 20 pairs of bandage scissors.

The report cuts both ways. A location over par is where a manager goes to pull scissors back for today's trays; a location at zero explains why the ER keeps calling. The system generates a daily work list for technicians to replenish each location, and a par on the pegboard or backstock tells them whether a drawer of forceps needs filling or can be left alone.

Case demand feeds the same screen. The peel pack module shows a needs list at the top, built from upcoming cases the way container assembly shows a priority list, so a technician facing a bin of instruments out of the washer knows which to pack first. A peel pack placed on a case cart or scanned to decontamination drops out of the available count for that core.

The UDI rule already puts a 2D mark on new instruments

The reason more instruments arrive already marked is federal. The FDA published its Unique Device Identification System final rule in September 2013, requiring a unique device identifier on device labels, with compliance dates phased by device class. In July 2022 the agency posted a final guidance covering Class I and unclassified devices, direct marking, which is a UDI placed on the device itself rather than only on its packaging, and listing in GUDID, the FDA's database of device identifiers.

In an October 2022 update the agency said devices labeled on or after September 24, 2023 must meet all applicable UDI requirements, including a ban on legacy NDC and NHRIC numbers on the label. The FDA also says its compliance policies for non-sterile Class II and Class III devices are no longer in effect, so those devices should bear a UDI unless an FDA-granted exception or alternative applies. The presenter's version was shorter: the mark now sits on the non-operating end of the instrument, near the name and catalog number.

A mark is only useful to CensiTrac if it is unique, and the presenter gave a bench test any department can run. First confirm the barcode scanner reads 2D marks as well as the linear barcodes on CensiTrac labels. Then scan the mark into a text file or an email to see the string it carries, and scan a few instruments from the same box.

Two instruments from the same box that scan to the same string cannot be tracked individually. Some vendor codes only repeat the manufacturer and catalog number, so every needle holder in the lot reads alike. The presenter said the support desk, whose number sits at the bottom of every CensiTrac window, will check a vendor's marks, and Censis sells marking equipment or sends a crew for contracted weeks to mark legacy inventory.

Scopes make the case that AAMI standards do not

Standards are a weaker driver than a business case might wish. AAMI's sterilization standards FAQ answers questions on trays and wraps, record retention, storage and transport by pointing to ANSI/AAMI ST79:2017, its comprehensive guide to steam sterilization and sterility assurance, and nowhere in that FAQ does the association call for use counts on individual instruments. Censis says on its site that CensiTrac maps to ST79 and ST90 and keeps records past the seven-year requirement, which a base system already does.

So the case for the upgrade rests on cost and accountability rather than a surveyor's checklist, and the presenter's sharpest example was the flexible scope. Rigid scopes and many flexible scopes now arrive with the 2D matrix on them, so a department can commission the scope as a marked instrument without making it a tray and collect processing and utilization data on that one scope.

When the scope goes out for repair, the record shows how often and why: normal wear, a surgeon who handles it as if it were stainless steel, a transport problem, or fluid invasion at the distal tip from a scope coiled badly in the basin of an automated endoscope reprocessor, the machine that washes flexible scopes. The same record drives preventive maintenance by instrument, so the scope that is due goes out when the repair truck is in the parking lot, rather than whichever scope happened to be in the department. Tray-level counts cannot see any of that.

The dollar figures leadership will ask for

The session named four audiences for the business case: executive leadership, meaning the chief nursing, financial and operating officers; IT; perioperative staff; and sterile processing itself. Its economic impact slide drew on 2022 data comparing manual entry, tray-level assembly and instrument-level assembly. Censis's product pages do not carry the dollar figures behind that slide, and labor and device costs have moved since 2022, so a director should ask the customer success team for current numbers before carrying them upstairs.

The IntuitionLabs listing says Censis does not publish pricing and customizes it per facility, and that federal contracts show annual license fees starting around $23,800 for tray-level tracking, with no figure given for the Advanced tier. The same listing puts implementation at one to three months, the number IT will want, and names STERIS SPM, Aesculap SQ.track and SYNAPSIS as related sterilization tracking systems without comparing any of them with CensiTrac on instrument-level tracking or clinic accountability. Its description of CensiTrac as the first instrument-level system is a priority claim, not a feature-by-feature one.

The signal the presenter points to is a formal integration with Intuitive that warns a technician when an arm with no lives remaining is being disposed of or an arm already at end of life is being processed. Until it exists, the detail is in the Bots and Managing Robotic Instrumentation session on the CtUC 2026 agenda.