Probe with Eye – German Stainless Steel Eyelet Probe for Fistula and Sinus Tract Exploration with Seton and Ligature Placement,

The Probe with Eye (PS-2201 through PS-2207) is a reusable German stainless steel surgical probe featuring an eyelet at its working end, available in seven overall lengths from 4½" (11.4cm) through 12" (30.5cm) — the widest size range offered in this instrument category — designed for exploring fistula and sinus tracts and for passing ligatures, sutures, drains, or wires through tissue tracts that the probe has traced. The defining feature of this instrument is the eye (eyelet) at the probe tip: once the probe has been gently advanced along a tract to explore its course, a length of suture, ligature material, or wire can be threaded through the eyelet, and the probe is then withdrawn back along the same path, drawing the threaded material through the tract behind it. This combines tract exploration and material placement into a single instrument and a single pass, distinguishing the probe with eye from instruments such as the grooved director (which guides a separate blade along its shaft but has no eyelet for thread passage) and the Pratt rectal probe (a smooth probe without an eyelet, used for examination rather than thread placement). Manufactured from German stainless steel for the corrosion resistance and dimensional stability required of a reusable instrument that undergoes repeated steam autoclave sterilization. Used by general surgeons, colorectal surgeons, and surgeons across multiple specialties wherever fistula or sinus tract exploration combined with ligature or drain placement is required, in hospital operating theaters and outpatient surgical units. Sold as 1 piece per length selected.

The Eyelet Mechanism: Combining Tract Exploration with Suture and Drain Placement

The eye at the working end of this probe is a small aperture through which suture material, a seton or ligature, a drain, or a length of wire can be threaded — and this single feature transforms the probe from a purely diagnostic exploration instrument into a tool that combines exploration with material placement in one maneuver. The typical sequence of use begins with gentle introduction of the probe's tip into the external opening of a fistula or sinus tract, advancing the probe along the tract's natural course using the same gentle, non-forcing technique used with any smooth surgical probe — the probe follows the path of least resistance, which corresponds to the existing tract, and the surgeon does not force the probe against resistance, as doing so risks creating a false passage. Once the probe has traversed the tract — either emerging at an internal opening, or reaching the depth the surgeon intends to address — the suture, seton, ligature, or drain material is threaded through the eyelet at the probe's tip. The probe is then withdrawn back along the same path it was advanced through, and as it withdraws, it draws the threaded material through the tract behind it, placing the material along the exact course the probe traced. This eliminates the need for a separate instrument or maneuver to place the ligature or drain after tract exploration — the same instrument that explored the tract also delivers the material through it.

Clinical Applications: Fistula Tracts, Sinus Tracts, and Seton Placement

The combination of tract exploration and material delivery that the eyelet provides has several specific surgical applications. In the management of fistula-in-ano and other perianal fistula presentations, a seton — a length of suture material, vessel loop, or similar material placed through the fistula tract — is used either as a draining seton, to maintain tract patency and allow ongoing drainage while controlling sepsis before definitive repair, or as a cutting seton, which is gradually tightened over time to slowly divide the tissue it passes through while allowing the surrounding tissue to heal and scar in its wake, a technique used to manage fistulas with a significant component of sphincter muscle in their course. The probe with eye allows the surgeon to trace the fistula tract and, in the same pass, draw the seton material through the tract, positioning it for subsequent tying or looping. In sinus tract exploration more broadly — pilonidal sinus tracts, other chronic draining sinus tracts, or post-surgical sinus tracts — the probe's eyelet allows a drain or marking suture to be placed along the tract's course, either to maintain drainage or to mark the tract's extent for subsequent excision. In ligature placement around vessels or other structures accessed through a narrow tract or tunnel, the probe can be passed through the tunnel and a ligature threaded through the eyelet, then drawn back through to position the ligature around the target structure — a technique applicable in various general surgical contexts where direct visualization of the structure to be ligated is limited and a tunneled approach with a probe-and-ligature technique is used instead.

Seven-Size Range: 4½" Through 12" for Superficial to Deep Tract Exploration

The seven available lengths — PS-2201 at 4½" (11.4cm), PS-2202 at 5" (12.7cm), PS-2203 at 5½" (14cm), PS-2204 at 6" (15.2cm), PS-2205 at 8" (20.3cm), PS-2206 at 10" (25.4cm), and PS-2207 at 12" (30.5cm) — represent the widest size range offered among the probe instruments in this category, reflecting the wide range of tract depths and surgical field depths this instrument is used across. The shorter lengths (PS-2201 through PS-2204, spanning 4½" to 6") are suited to superficial fistula and sinus tracts — perianal fistulas, pilonidal sinus tracts, and other superficial chronic wound tracts — where the tract length and the surgical field depth are modest, and a shorter instrument provides better tactile control over the probe's tip as it explores the tract. The longer lengths (PS-2205 through PS-2207, spanning 8" to 12") extend the instrument's reach for deeper sinus tracts, longer fistula tracts, or surgical applications where the target structure or tract opening is positioned deeper within a body cavity or surgical field — the additional length allows the surgeon to maintain control of the proximal end of the probe outside the surgical field while the working tip addresses a deep target, without the surgeon's hand needing to enter the field itself. Selection among the seven sizes is made based on the anticipated or assessed depth of the tract or surgical field being addressed, with surgical units commonly stocking a range of sizes to ensure the appropriate length is available for the variety of tract depths encountered across a general surgical caseload.

German Stainless Steel Construction and Sterilization

The Probe with Eye is manufactured from German stainless steel, providing the corrosion resistance and surface durability required of a reusable instrument whose smooth surface is central to its atraumatic function during tract exploration. The eyelet itself — a small machined aperture at the probe tip — requires particular attention during cleaning and sterilization, as its small dimensions can retain organic debris, suture fragments, or other residue from previous use if not thoroughly cleaned; any such residue could both compromise sterilization efficacy at this feature and interfere with threading suture or ligature material through the eyelet on subsequent use. The probe shaft and tip should be inspected for smoothness at each reprocessing cycle, as with any tract-probing instrument, since any roughness compromises the atraumatic exploration the instrument is designed to provide. The instrument is fully compatible with steam autoclave sterilization at 134°C pre-vacuum parameters, the standard method for reusable general surgical instruments. Available in satin, dull, or mirror surface finish.

CE Mark, ISO 13485, and FDA Certification for Surgical Instrument Procurement

The Probe with Eye (PS-2201 through PS-2207) is manufactured under a quality management system certified to ISO 13485, governing German stainless steel material sourcing, precision forming and polishing of the probe shaft and eyelet across all seven overall lengths, surface finishing, and packaging. CE Mark certification confirms conformity with European Medical Device Regulation requirements for Class I reusable surgical instruments distributed within EU and associated regulatory territories. FDA compliance documentation is maintained for United States distribution, satisfying regulatory requirements for reusable general surgical instruments procured by US hospitals, outpatient surgical units, and surgical instrument distributors. These certifications satisfy procurement and tender documentation requirements of institutional buyers in the USA, India, Pakistan, Vietnam, and across international surgical instrument supply frameworks. Certificates of conformity and quality management system documentation are available on request. OEM manufacturing and custom sizing are available within the same certified manufacturing framework.

Product Specifications

Frequently Asked Questions

What is a probe with eye, and how is it different from other probes such as the grooved director or Pratt rectal probe?
A probe with eye is a surgical probe with an eyelet — a small aperture — at its working tip, designed to combine tract exploration with the placement of suture, ligature, drain, or wire material in a single instrument pass. After the probe is gently advanced along a fistula or sinus tract to trace its course, material is threaded through the eyelet, and withdrawing the probe back along the same path draws the threaded material through the tract. This is functionally distinct from the grooved director, which has a groove along its shaft to guide a separate scalpel blade but has no eyelet and does not itself carry material through a tract, and from the Pratt rectal probe, which is a smooth probe without an eyelet used for canal examination and assessment rather than for placing material through a tract. The eyelet is the defining feature that gives the probe with eye its specific function: exploration and material delivery combined.

How is the probe with eye used in seton placement for fistula-in-ano?
In the management of fistula-in-ano, a seton — a length of suture material, vessel loop, or similar material — is placed through the fistula tract either as a draining seton, which maintains tract patency and drainage while controlling infection ahead of definitive repair, or as a cutting seton, which is gradually tightened over time to slowly divide the tissue in its path while the surrounding tissue heals behind it, used for fistulas with significant sphincter muscle involvement. To place a seton, the probe with eye is gently advanced along the fistula tract from its external opening, following the tract's natural course without forcing against resistance. Once the probe has traversed the tract — ideally emerging at the internal opening — the seton material is threaded through the eyelet at the probe's tip. The probe is then withdrawn back along the tract, drawing the seton material through behind it. The seton ends, now positioned through the tract, can then be tied or looped as required by the chosen seton technique.

Why does this product offer such a wide range of sizes — 4½" through 12"?
The seven sizes available — from 4½" (11.4cm) through 12" (30.5cm) — represent the widest size range among the probe instruments in this category, reflecting the wide variation in tract depths and surgical field depths across the procedures this instrument is used for. Superficial perianal fistula tracts and pilonidal sinus tracts are typically shallow, and the shorter sizes (4½" through 6") provide adequate reach with better tactile control for these applications. Deeper sinus tracts, longer fistula tracts, or applications where the tract opening or target structure is positioned deeper within a surgical field require the longer sizes (8" through 12"), which allow the surgeon to maintain control of the probe's proximal end outside the field while the working tip addresses a deeper target. Stocking across this size range allows a surgical unit to select the appropriately sized probe for the specific tract or field depth encountered in each case, rather than working with a single length that may be either too short to reach a deep target or unnecessarily long and unwieldy for a superficial one.

What sterilization protocol is recommended, and what should be checked before each use?
The Probe with Eye, manufactured from German stainless steel, is fully compatible with steam autoclave sterilization at 134°C pre-vacuum parameters, the standard method for reusable general surgical instruments. The eyelet at the probe tip requires particular attention during cleaning — its small dimensions can retain suture fragments or other organic debris from previous use, and any residue in the eyelet could both compromise sterilization at this feature and obstruct threading of suture or ligature material on subsequent use. Thorough cleaning with attention to the eyelet aperture, ideally with ultrasonic cleaning to dislodge any retained debris, is recommended before terminal sterilization. The probe shaft and tip should also be inspected for surface smoothness, as with any tract-probing instrument, since roughness compromises the atraumatic exploration the probe is designed to provide.

What certifications does this instrument carry, and are bulk or OEM orders available?
The Probe with Eye (PS-2201 through PS-2207) is manufactured under an ISO 13485-certified quality management system covering German stainless steel material procurement, precision forming and polishing of the probe shaft and eyelet across all seven lengths, and packaging. CE Mark certification confirms conformity with European Medical Device Regulation requirements for Class I reusable surgical instruments. FDA compliance documentation supports United States distribution. Certificates of conformity are available on request for hospital procurement and tender documentation. Bulk orders are accepted with a minimum of 1 piece per length, with volume pricing available for hospitals, colorectal and general surgical units, and surgical instrument distributors — facilities managing a varied caseload of fistula and sinus tract procedures may benefit from stocking across the full size range. OEM manufacturing for custom sizing or private-label branding is available within the same ISO 13485-certified framework. Free shipping applies on orders of $99 or more.