The Tube That Changed Everything

If you’ve read our Order of Draw Deep Dive series, you’ve spent some time thinking about what’s inside blood collection tubes — the additives, the anticoagulants, the science behind why each tube earns its place in the sequence. But now we are going to talk about a more fundamental question: how did these tubes come to exist in the first place?

Think about what we do every day. We push a tube onto a needle hub, blood flows in automatically, and we move on to the next one. It’s so routine that it barely registers. It’s actually a remarkable piece of engineering. A self-filling, sterile, pre-measured, additive-ready closed system that protects both the patient and the collector. Someone had to dream that up, and thanks to that person we have the system we use today.

Before the Tube

To appreciate what the evacuated tube system gave us, you have to know what came before it for a moment.

Before vacuum tubes existed, blood collection was a much more tedious and multi-step process that required real manual labor. Phlebotomists drew blood using glass syringes, then transferred it by hand into open test tubes. Additives like EDTA and sodium citrate had to be prepared separately and dispensed into those tubes before the draw. Lab staff etched lines into borosilicate glass tubes by hand to mark the correct fill volume. For serum specimens, wooden applicator sticks were used to physically loosen the clot from the tube walls after collection.

Every test could mean a separate puncture. Spillage was common. Contamination was a constant risk. And the ratio of blood to additive — which we now know matters enormously for result accuracy — was essentially a best guess.

It worked. Barely. And it was clearly overdue for a rethinking.

One Man, One Idea

The origin story of the evacuated tube is a personal one. In the late 1940s, Joseph Kleiner was watching his terminally ill wife endure something that was all too common at the time — multiple painful needle sticks just to collect enough blood for her physicians’ orders. Each test required its own puncture. Each puncture required its own transfer into an open tube. It was exhausting, inefficient, and hard on a patient who was already suffering.

Kleiner was an engineer, and engineers notice problems that other people accept as just the way things are. During World War II, the military had been using sealed glass tubes with a vacuum inside to move blood from donors to wounded soldiers on the battlefield. The concept was simple but powerful: the negative pressure inside the tube did the drawing automatically the moment a needle broke the seal. No manual aspiration. No transfer. No open container sitting on a tray waiting to spill.

Kleiner saw what others had missed: that same closed-system thinking could be brought into the diagnostic lab. Not just for moving blood around, but for collecting it in the first place. A tube that already contained the right additives, pre-measured and sealed, that would fill itself to the correct volume the moment it connected to a needle in a vein. Blood would go directly from patient to tube — no hands, no air, no guesswork.

He built a prototype, filed a patent in 1947, and named it the Evacutainer.

It’s worth noting that Kleiner wasn’t just a lone inventor with a single good idea — the man had range. He had already founded his own company, Multifit, which BD acquired in 1943. Multifit had developed a syringe system with interchangeable barrels and plungers — a meaningful innovation in its own right. Kleiner came to BD as part of that acquisition, and brought the Evacutainer concept along with him. When BD patented the design in 1949 and relaunched it under the name Vacutainer®, the first tubes hit the market quickly. The advantages over open collection were obvious to anyone who had ever cleaned up a spilled blood transfer or watched a patient wince at a third needle stick. It was an immediate success.

You can read more about BD’s history and Joseph Kleiner here

The Evolution

The original Vacutainer® was glass. Glass was fragile, heavy, and a biohazard when it broke — which it did. BD introduced plastic tubes in 1961, which were lighter, more durable, and safer for everyone handling them. But here’s something that might surprise you: even though plastic tubes existed in 1961, most facilities didn’t fully make the switch until the 2000s. That’s four decades of glass tubes sitting alongside a plastic alternative that nobody was ready to fully trust. There are good reasons why.

The biggest problem was shelf life. Those early plastic tubes lost their vacuum much faster than glass. And the entire system depends on that vacuum being intact — if it degrades, your fill volume is off, your additive ratio is off, and your results are compromised. Glass held vacuum reliably for a long time. Early plastics simply couldn’t match it.

Moisture permeability was another issue. Plastic is porous in ways glass isn’t. Over time, moisture could slowly evaporate through the tube walls, causing certain additives — particularly anticoagulants like sodium citrate — to concentrate or even gel. That’s a serious pre-analytical problem, and labs knew it.

Then there was the question of analyte interference. Labs were legitimately concerned that plastic might leach chemicals into the specimen, or interact with certain analytes differently than glass. Coagulation testing was a particular worry, since clotting is so sensitive to surface contact. It took years of published research — some of it not until the mid-2000s — to validate that plastic performed comparably to glass across most assay types. And labs are cautious by necessity. When your results affect patient care, you don’t switch materials until you’re very sure the new one performs at least as well as the old one.

The Safe Medical Devices Act of 1990 gave the industry a real push. By formally flagging the injury risks associated with breakable glass, it motivated manufacturers to finally engineer their way past the problems holding plastic back. That’s what produced the Vacutainer PLUS — developed at BD’s Research Center in the early 1990s, and made from a specific formulation of polyethylene terephthalate (PET) that was strong, dimensionally stable, and resistant to chemicals and breakage. The interior was coated with silicone to prevent red cells from sticking to the tube walls, and with micronized silica particles in serum tubes to accelerate clotting — replicating what glass had been doing naturally, but in a plastic vessel that wouldn’t shatter on a lab floor. That’s essentially the tube most facilities use today, or a direct descendant of it.

Color coding became standardized across manufacturers over time, which is now so fundamental to our work that it’s hard to imagine the profession without it. The sight of blood, needles, and a rainbow of tube tops is practically the universal image of phlebotomy.

Then came the 1980s, and the AIDS epidemic changed everything about how we thought about blood. The risk of bloodborne pathogen transmission through occupational exposure — HIV, hepatitis B, hepatitis C — pushed the industry toward a new generation of safety innovations. The BD Hemogard™ closure was developed specifically to address one of those exposure points. Traditional rubber stoppers sit flush with the top of the tube — when you remove one, your fingers make direct contact with the stopper surface, which by that point has blood on it.

The Hemogard™ redesigned this entirely. It wraps a wider plastic shield around the rubber stopper, recessing it so that when you grip the cap to remove it, your fingers contact only the plastic housing, never the stopper itself. It’s a small design change that eliminated a daily, routine exposure risk for anyone handling tubes after collection. Safety-engineered needles followed. Every feature added to the modern collection system in that era exists because real people were getting hurt, and the profession refused to accept that as inevitable.

It’s Not All BD

Ever hear someone say “I’m going to draw your blood using the vacutainer method?” If you have, — and if you’re anything like me, it makes you twitch a little. What they mean is “I’m going to do a blood draw using a needle and an evacuated tube system.” They’re just using a brand name to describe it. There’s a difference between general phlebotomy equipment, and brand names.

Vacutainer® is actually a registered trademark of Becton Dickinson, and it covers their full line of blood collection products — the tubes, the needles, the holders, the whole system.

• BD Vacutainer® Eclipse™ blood collection needles
• BD Vacutainer® Safety-Lok™ blood collection sets
• BD Vacutainer® one-use holders
• BD Vacutainer® Push Button blood collection sets
• BD Vacutainer® Luer adapters
• BD Vacutainer® Blood Collection Tubes

Greiner Bio-One, for example, makes their own evacuated tube system called VACUETTE®. Other manufacturers have their own versions too. The correct term for the system as a whole — regardless of whose tubes are in the drawer — is an evacuated tube system, or ETS. The tubes themselves are blood collection tubes. The procedure is venipuncture.

The reason this misconception is so widespread is pretty understandable when you look at the history. BD was first. They held a complete monopoly on the evacuated tube market in the United States until the early 1970s, which means an entire generation of phlebotomists and educators learned the profession using BD Vacutainer® products exclusively. The name got baked into the language of the field and passed down from instructor to student for decades, long after other manufacturers entered the picture. When you hear someone call a straight needle draw “the vacutainer method,” — that’s usually inherited terminology that never got corrected along the way.

So next time someone says they’re using “the vacutainer method,” you can translate: standard venipuncture, evacuated tube system, needle of choice. That’s all it means — just without the brand name attached, and you can pass the right language forward. Those are the terms that travel across brands, across facilities, and across borders — and they’re the correct ones for the procedure.

The Scale of What Kleiner Started

BD alone sells over 10 billion Vacutainer® products worldwide every year. That’s roughly 328 products every single second. The evacuated tube system is one of the most widely used medical devices on the planet, and most patients have no idea about the innovation and brilliance behind it. They just know that blood goes into a tube.

We know better. We know the tube is the result of one person watching someone he loved suffer through an unnecessarily painful process and deciding there had to be a better way. We know the vacuum isn’t magic — it’s engineering. We know the color on the cap isn’t decoration — it’s communication. We know the closed system isn’t just convenient — it’s a safety feature that has protected countless patients and collectors from contamination, error, and exposure.

Next time you seat a tube on the hub and watch it fill, give it a second. That little tube has a history. And it’s a good one.

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