A Toomey syringe is a large-capacity syringe with a wide, straight tip designed to move fluids quickly through catheters, feeding tubes, and drainage lines. It typically holds 60 cc (about 2 ounces) and is most commonly used in hospitals for bladder irrigation, wound cleaning, and tube feeding. What sets it apart from a standard syringe is its tip: instead of the narrow, threaded connector you’d see on a syringe meant for injections, a Toomey has a broad, smooth opening that fits directly onto catheters and tubes without locking into place.
How the Tip Design Differs From Standard Syringes
Most syringes you’d encounter in a medical setting use what’s called a Luer lock tip, a small threaded connector that screws onto needles or IV lines to create a tight seal. That design works well when you need precision and security, like delivering medication into a vein or handling chemotherapy drugs. But it’s slow. The narrow opening restricts flow, which becomes a problem when you need to push or pull large volumes of fluid quickly.
The Toomey tip solves this with a wider, unthreaded opening that slips directly onto catheters and tubing. This larger bore lets fluid flow freely in both directions. Some Toomey syringes also include a loop on the plunger handle, making it easier to pull back with one hand, which matters when a clinician is managing a catheter and syringe simultaneously. The barrel is typically made of clear polycarbonate so the user can see exactly what’s being drawn in or pushed out, whether that’s saline, blood clots, or feeding formula.
Bladder Irrigation and Clot Removal
The most well-known use for a Toomey syringe is in urology, specifically flushing the bladder through a catheter. After certain surgeries or when blood collects in the bladder, clots can form and block the catheter. A Toomey syringe connects to the end of the catheter and allows a nurse or doctor to push saline in and then draw it back out, breaking up and evacuating clots in the process.
This is considered a conventional method alongside a device called an Ellik evacuator. The Toomey generates stronger suction pressure than the Ellik, though even that force sometimes isn’t enough to dislodge large, stubborn clots. In those cases, more advanced methods like mechanical suction under anesthesia may be needed. For routine post-surgical irrigation, though, the Toomey is the standard bedside tool because it’s simple, disposable, and effective for most situations.
Wound Irrigation
Large syringes like the Toomey are also used to clean wounds. The goal of wound irrigation is to flush out debris and bacteria without damaging healthy tissue, which means the water pressure needs to fall within a specific range. Clinical guidelines recommend pressures between 4 and 15 psi for safe wound cleaning, with the ideal sweet spot around 7 to 8 psi.
The pressure a syringe delivers depends on two things: the volume of the syringe and the size of the catheter or needle attached to it. Larger syringes generally produce lower pressure per push, while smaller catheter openings concentrate the stream and increase pressure. A Toomey’s wide opening on its own produces a gentle, broad flow suited for rinsing large wound surfaces. When higher pressure is needed to dislodge embedded debris, clinicians can attach a narrower catheter tip to focus the stream. The combination of syringe size and catheter gauge gives wound care teams precise control over how aggressively they irrigate.
Tube Feeding and GI Uses
Toomey syringes have long been a go-to tool for bolus tube feeding, where a measured amount of formula is pushed through a gastrostomy tube (G-tube) or nasogastric tube directly into the stomach. The wide tip fits snugly onto the end of most feeding tubes, and the 60 cc capacity means fewer refills per feeding session.
This landscape has been changing, though. The healthcare industry has been transitioning feeding tubes to a new connector standard called ENFit, which was specifically designed to prevent medical tubing from being accidentally connected to the wrong system (for example, a feeding syringe being plugged into an IV line). ENFit connectors are intentionally incompatible with catheter-tip syringes, including Toomey-style tips. If your feeding tube has an ENFit connector, you’ll need a syringe with a matching ENFit tip. During the transition period, adapters are available that bridge the old and new systems, but the long-term direction is toward ENFit-specific syringes for all enteral feeding.
Fat Grafting and Cosmetic Surgery
Outside of bedside nursing, Toomey syringes play a role in cosmetic and reconstructive surgery. During syringe-assisted liposuction, surgeons connect a specialized cannula (a thin, hollow tube) to a 60 cc Toomey syringe and manually aspirate fat. The wide tip accommodates the cannula hub, and the large barrel collects a meaningful volume of fat with each pass. This technique gives the surgeon more tactile feedback than machine-powered suction, which some practitioners prefer when harvesting fat for transfer to other areas of the body.
What Makes It Useful in Practice
The Toomey syringe isn’t a specialized or exotic piece of equipment. It’s a disposable, inexpensive tool found in nearly every hospital supply room. Its value comes from a simple design principle: a big syringe with a big opening moves fluid fast. That makes it the right tool whenever the job involves flushing, irrigating, or aspirating through a catheter or tube rather than delivering precise doses through a needle. If you’ve encountered the term on a medical supply list, a care instruction sheet, or a hospital bill, that’s the device it refers to: a 60 cc syringe with a smooth, wide catheter tip built for high-flow fluid work.