Autonomous Mobile Robot vs Supply Runner at Surgical Centers

Autonomous mobile robot vs supply runner: when does the robot make sense?

The short answer is that an autonomous mobile robot earns its place on the repeat trips, and a supply runner keeps the rest. A surgical center moves sterile supplies out from storage or the sterile processing area to procedure rooms again and again across a day, and each leg is the same route with the same destination logic. That repetition is what a robot handles well, because it follows a mapped route and returns on a schedule.

It does not make sense when the work is mostly exceptions. A case that changes at the last hour, a surgeon who asks for a substitute set, or a tray that must be checked against a preference card before it leaves all require a person to judge. A robot can carry the tray, but it cannot decide what goes on it. Small sites with one suite, or routes that change every week, gain less, because mapping and route upkeep take staff time that a short loop may not repay.

The useful question is not whether a robot can move a cart. In a mapped and clear environment it can. The useful question is how much of your supply movement is the same trip repeated, and how much needs a person to decide.

How many surgical centers are there in the US, and why does the count matter?

Most surgical centers in the US are ambulatory surgery centers, and there are enough of them that the supply pattern repeats across many sites. According to Becker's summary of the ASC Data report, which is built on CMS data, there were 6,566 Medicare certified ASCs across 51 states and 3 US territories in the fourth quarter of 2025, up from 6,545 in the third quarter. California has 917 of them and Texas about 505.

Counts move with definitions and dates. An earlier Becker's count, citing ASCA data as of March 2025 and CMS data, lists 6,468 Medicare certified ASCs. Tie any count you use to its source and its date, so that another reader can check it.

For a single center, the count matters less than the layout. A site with one suite and a short corridor has a distinct supply flow from a site with several procedure rooms sharing one sterile processing area. The robot's value follows that flow, not the national total.

What does a supply runner actually do in a shift at a surgical center?

In many surgical centers the runner is a central supply or sterile processing staff member on a delivery loop, and some centers assign a dedicated runner. The job is to pull sterile packs and instrument sets from storage or the sterile processing department and carry them to procedure rooms before a case. Between cases the runner takes used or soiled items back, restocks room supplies, and fetches anything requested by phone or message.

Much of the day is walking, waiting at elevators or doors, and checking labels. The runner also does the checking that is easy to overlook: confirming the right set goes to the right room, that the package is intact, and that its sterility date has not passed. That checking is not overhead. It is the part of the run that protects patients, and it is the part a robot cannot take over.

The research gives no measured count of trips or walking time for supply runners in surgical centers. It does show that sterile instrument logistics are labor and cost intensive. Fragapane and colleagues, in a 2023 study in Production Planning and Control based on a multiple case study, describe automating transport as a way to reduce staff time on that task. Measure your own trips before you assume a figure.

Which parts of the supply run can a robot take, and which can it not?

A robot can take the transport leg. It loads a cart or bin at a defined staging spot, follows a mapped route between storage, sterile processing and procedure rooms, and returns empty. A 2021 hospital conference abstract on an automated guided vehicle in a sterile supplies unit reports 8 to 10 transport trips per day and over 60,000 sterile items dispatched to clinical areas, along with reduced manpower and transport time. That was a hospital, not a surgical center, and the abstract gives no hour totals, so read it as direction, not a benchmark.

It cannot inspect a package for damage, match a set to a case, or decide that a substitute is acceptable. It cannot pick a sterile item from a mixed shelf and know what it is. Elevators, badge controlled doors and fire doors need integration work before a robot can use them, and it cannot ask a nurse which room is ready if the room signal is missing. Those steps stay with people, or with a staged cart and a person at each handoff.

The practical split is simple. A person loads and verifies, the robot moves, and a person receives and checks at the room. The robot removes the walking, and the person keeps the decisions.

What does a robot shift look like at a surgical center?

A typical setup is a set of scheduled loops from staged bins, with a person at each end of the loop. The schedule in this section is an illustrative example, not a measured one. The real loop depends on case mix, room count and how the staging area is laid out.

The early hours are where a robot pays most of its way. Storage and sterile processing are often quiet before the first cases, so the loop can restock procedure rooms ahead of the first block. Staff then take over at the handoff points rather than walking every leg, and the runner's time moves to checking and urgent requests.

The robot does not change the staffing plan by itself. Supply still needs a person to load, verify and receive, and the robot's job is to reduce the number of legs that person walks, not to remove the person from the loop.

What do the hours and labor numbers say about staffing a supply run?

The research gives a clear picture of turnover and hiring time, but not a per shift hour count for this task. According to OR Manager's 2023 career salary survey, average turnover in the past year was 16 percent for RNs and 15 percent for surgical technologists. Those figures describe the clinical staff in the room, not the people who run supply.

Sterile processing is where the pressure shows. In the St. Louis regional 2025 workforce data, collected in January 2025 for one region only, surgical technician turnover was 24.0 percent and sterile processing technician turnover was 36.2 percent. A regional figure cannot be applied to every center, but it shows why a supply loop that depends on one person is fragile.

Hiring time adds to the gap. According to OR Manager's September 2024 edition, filling a surgical technologist position takes an average of 120 days. A vacancy in the loop means delayed trips and extra walking for the people who stay. The research does not give a rate for overtime or sick days in these roles, so this page does not state one.

Growth is positive but modest. The BLS Occupational Outlook Handbook projects employment of surgical assistants and technologists to grow 5 percent from 2024 to 2034, faster than the average for all occupations. BLS also reports 3.4 cases per 100 full time equivalent workers in health care and social assistance in 2024, down from 3.6 in 2023. Those are sector rates, so they inform the safety picture without measuring a supply run.

How does a team work with a robot, and does the robot replace anyone?

The model is a robot plus people, never a robot in place of the whole team. Keep a central supply or sterile processing person on every shift who owns loading, verification and exceptions. The robot takes the scheduled walking, and that frees the person for the checks and urgent work a robot cannot do.

Build the handoffs before you go live. Define the staging point, the labeling scheme, the request path for urgent items, and the rule for what the robot does when a route is blocked. Most early problems come from unclear handoffs rather than from the vehicle. Train staff on the stop control, the pause procedure and who to call when the robot is stuck.

Plan coverage around the handoff, not around the robot. The robot does not hold a shift, call in sick or cover a gap on its own, so a vacancy at the handoff is still a vacancy. If a person leaves, the handoff needs cover from someone trained, or the loop pauses.

What can an autonomous mobile robot not do at a surgical center?

Be direct about the limits. A robot does not confirm sterility, does not make clinical or handling decisions, and does not understand a changed case or a substituted set. It should never be the only supply process, because one robot stopped by a blocked corridor leaves the loop open until a person clears it.

Site conditions are the other limit. Floor surfaces, door hardware, elevator access, wireless coverage and clear corridors all need to work before the robot is useful. Sites with frequent route changes or heavy foot traffic at set hours see more stops, and each stop is a delay the runner would not have had to plan for.

Injury data is a reason for care in how you frame the change. BLS reports a total recordable case rate of 2.3 per 100 full time equivalent workers across all private industry in 2024, down from 2.4 in 2023. A robot reduces the walking load, but it does not remove the lifting and handling of cases that stay with staff, so present the change as less walking, not as zero risk.

How do you get started with a robot for sterile supply runs?

Start with measurement. Log supply trips for a few typical weeks: count the legs, record the route, note the wait at each handoff, list the rooms served, and mark the peak times. That log shows whether the loop is repetitive enough to pay off, and it gives the site assessment real numbers to plan around.

Then book the site assessment. We pick the right robot for your site, map the route, check doors, elevators and wireless coverage, and set staging points and handoffs with your team. We deploy and integrate the robot, train staff, and service it nationwide. Financing is through a lease, and the lease payment is quoted after the free site assessment, so you see the number for your site before you decide.

Start small. One leased unit on one loop, with a backup plan for the days it is out of service, is a sound first step. Extend the loop only after the handoffs and exception rules have held through several normal weeks.