Ring Retractor Blades – German Stainless Steel Tongue Blades for McIvor and Davis-Crowe Gag Frames, Sizes 2-5 Right and Left (PS-7711–PS-7718)

The Ring Retractor Blades (PS-7711 through PS-7718) are reusable German stainless steel tongue blades designed for use with the McIvor and Davis-Crowe mouth gag frames, available in four size numbers (No. 2 through No. 5) in both right and left configurations — eight variants total — to match the gag frame to the patient's anatomy during tonsillectomy, adenoidectomy, and other oral and oropharyngeal procedures requiring tongue retraction and stable mouth opening. Each blade features a groove running the full length of the blade that holds the endotracheal tube in position, protecting it from displacement, kinking, or occlusion by the patient's teeth or the gag frame itself throughout the procedure — a critical airway-safety feature in any procedure where the gag and the airway device occupy the same surgical field. The blade attaches to the McIvor or Davis-Crowe frame via the standard slot or clip attachment that allows rapid, tool-free blade changes between cases, enabling a single reusable frame to be matched with the appropriately sized blade for each individual patient. The four size numbers (No. 2 through No. 5) span the dimensional range from smaller pediatric blades (No. 2, 2¼"×⅞" / 5.7×2.3cm) through larger adult blades (No. 5, 3¾"×1½" / 9.5×3.8cm), with right and left versions of each size accommodating the side-specific blade geometry that the McIvor and Davis-Crowe frame designs require. 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 ENT surgeons, anesthesiologists, and operating room teams in hospital operating theaters and ENT surgical units. Sold as 1 piece per size and side selected.

Endotracheal Tube Groove: Airway Protection During Tonsillectomy and Adenoidectomy

The full-length groove running along the Ring Retractor Blade is the feature that most distinguishes this blade design and addresses one of the recognized intraoperative risks during tonsillectomy and adenoidectomy performed under general anesthesia with the airway secured by an endotracheal tube. When the McIvor or Davis-Crowe gag frame is positioned with the tongue blade depressing the tongue, the endotracheal tube — which passes through the oral or nasal cavity to the trachea — occupies space within or adjacent to the gag's footprint. Without a dedicated channel for the tube, the tube can be displaced from its intended position by the gag frame or blade as the gag is opened and positioned, kinked at a point where it passes across or under the blade — restricting or occluding airflow through the tube — or compressed between the patient's teeth and the blade if the tube's path brings it into contact with the dental arches. Any of these events compromises ventilation during a procedure where the surgical field is immediately adjacent to the airway, and where airway problems may not be immediately obvious to the surgical team if attention is focused on the operative site. The groove running the full length of the Ring Retractor Blade provides a defined channel that the endotracheal tube is positioned into when the gag is placed, holding the tube in a stable, protected path along the blade and away from the points where the gag frame's mechanical action or the patient's teeth could displace, kink, or compress it. This groove is a passive safety feature — it does not require any action beyond correct initial tube placement into the channel — that reduces the risk of airway tube displacement throughout the procedure as the gag is opened, adjusted, and held in position.

Size Numbers 2 Through 5 and Right/Left Configuration: Matching Blade to Patient and Frame

The eight variants of the Ring Retractor Blade — four size numbers (2, 3, 4, 5) each in right and left configurations — provide the dimensional range and frame-side matching required across the patient population and gag frame designs that use this blade type. Size No. 2 (2¼"×⅞" / 5.7×2.3cm) is the smallest in the range, proportioned for younger pediatric patients with correspondingly smaller oral cavities and tongue dimensions. Size No. 3 (3"×1⅛" / 7.2×2.7cm) and Size No. 4 (3½"×1¼" / 8.8×3.3cm) provide intermediate dimensions suited to older pediatric and smaller adult patients respectively. Size No. 5 (3¾"×1½" / 9.5×3.8cm) is the largest, proportioned for adult patients with larger oral cavities. The progression in both length and width across these four sizes reflects that larger patients require both a longer blade to adequately depress the tongue across its greater length and a wider blade to provide adequate lateral tongue displacement and a wider endotracheal tube groove channel. The right and left designation for each size reflects the asymmetric geometry of the McIvor and Davis-Crowe frame designs — the blade attachment point and the angle at which the blade extends from the frame differ depending on which side of the frame the blade is intended for, and a right blade is not simply a mirror-image substitute for a left blade of the same size in terms of fit and function on the frame. Operating rooms stocking these blades for a mixed pediatric and adult ENT caseload typically maintain a range across all four sizes in both right and left configurations, allowing the correct blade to be selected for each patient and seated correctly on the available McIvor or Davis-Crowe frames.

Compatibility with McIvor and Davis-Crowe Gag Frames

The Ring Retractor Blade is designed for compatibility with both the McIvor and Davis-Crowe mouth gag frame designs — the two most widely used frame-and-blade self-retaining gag systems in ENT and oral surgical practice for tonsillectomy and adenoidectomy. Both frame designs share the fundamental architecture of a ratchet or spring-locking frame that holds a selected mouth opening, with an interchangeable tongue blade attached to the frame to depress the tongue and create the oropharyngeal working space. The Davis-Crowe frame and the McIvor frame differ in specific aspects of their frame geometry, handle design, and locking mechanism detail, but both accept tongue blades of compatible attachment design — allowing operating rooms that stock either frame type, or both, to draw from a common blade inventory rather than maintaining frame-specific blade sets. This compatibility is a practical procurement advantage: rather than stocking separate blade ranges for McIvor frames and Davis-Crowe frames, a single range of Ring Retractor Blades across the four sizes and both sides can serve whichever frame type is selected for a given case, reducing the total blade inventory required while ensuring the correct size is always available regardless of which frame the operating room's stock happens to include for that procedure.

German Stainless Steel Construction and Sterilization Workflow

The Ring Retractor Blades are manufactured from German stainless steel, providing the corrosion resistance and dimensional stability required of a reusable instrument component that undergoes repeated steam autoclave sterilization between cases in a high-throughput ENT operating list. The endotracheal tube groove, running the full length of the blade, should receive particular attention during cleaning — its channel geometry can retain organic debris from previous use, and residual debris in the groove could affect the smoothness with which the endotracheal tube seats into the channel during subsequent use. The blade attachment mechanism — the slot or clip that engages the McIvor or Davis-Crowe frame — should be inspected at each reprocessing cycle for wear that could affect the security of the blade-frame connection; a blade that is not securely attached to the frame during use could become displaced, compromising both the tongue retraction and the endotracheal tube protection the blade is intended to provide. The instrument is fully compatible with steam autoclave sterilization at 134°C pre-vacuum parameters, the standard method for reusable ENT and oral surgical instruments. Available in satin, dull, or mirror surface finish.

CE Mark, ISO 13485, and FDA Certification for ENT and Oral Surgery Instrument Procurement

The Ring Retractor Blades (PS-7711 through PS-7718) are manufactured under a quality management system certified to ISO 13485, governing German stainless steel material sourcing, precision machining of the blade body, endotracheal tube groove, and frame attachment features, dimensional inspection across all eight size and side variants, 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 ENT and oral surgical instruments procured by US hospitals, ENT 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 the function of the groove on the Ring Retractor Blade, and why is it clinically important?
The groove running the full length of the Ring Retractor Blade provides a dedicated channel for the endotracheal tube during procedures performed with the McIvor or Davis-Crowe gag frame in place — most commonly tonsillectomy and adenoidectomy under general anesthesia. Without this channel, the endotracheal tube — which must pass through the oral cavity alongside the gag and blade — has no defined position relative to the blade and gag frame, and is at risk of being displaced from its intended position, kinked at a point where the gag frame's mechanical action presses against it, or compressed between the patient's teeth and the blade. Any of these outcomes can restrict or interrupt ventilation through the tube during a procedure where the surgical field is immediately adjacent to the airway and where the anesthesia team's view of the tube's path may be partially obstructed by the surgical drapes and the gag itself. The groove holds the tube in a stable, defined path along the blade, protected from the gag frame's moving parts and from the patient's dental arches, providing a passive airway-protection feature that functions throughout the procedure without requiring any ongoing intervention beyond correct initial placement of the tube into the groove.

How should the correct blade size (No. 2 through No. 5) and side (right/left) be selected?
Size selection is based on patient age and oral cavity dimensions: No. 2 (2¼"×⅞") is the smallest, suited to younger pediatric patients; No. 3 (3"×1⅛") and No. 4 (3½"×1¼") provide intermediate sizing for older pediatric and smaller adult patients; and No. 5 (3¾"×1½") is the largest, suited to adult patients. The correctly sized blade should adequately depress the tongue across its length without the blade tip extending so far posteriorly that it contacts the epiglottis or larynx inappropriately, and the blade width should provide adequate lateral tongue displacement while accommodating the endotracheal tube groove without the overall blade-and-tube assembly being so wide that it crowds the oropharyngeal working space the surgeon needs. Side selection (right or left) is determined by the McIvor or Davis-Crowe frame's attachment geometry — the frame's blade attachment point and the angle at which the blade extends are asymmetric by design, and a right-side blade and a left-side blade of the same size number are not interchangeable on the frame despite sharing the same overall dimensions. Operating rooms should confirm which side configuration their specific frame requires and stock the corresponding blade.

How does this blade relate to the McIvor Mouth Gag also available from Peak Surgicals?
The McIvor Mouth Gag (PS-7720) is the reusable ratchet frame component of the frame-and-blade gag system — the part that the surgical team holds, opens to the selected position, and locks via the ratchet mechanism. The Ring Retractor Blades (PS-7711 through PS-7718) are the interchangeable tongue blade components that attach to the McIvor frame (and to the Davis-Crowe frame) to provide the tongue-depressing surface and the endotracheal tube protection groove. The frame and the blades are sold as separate products because a single reusable frame can be used with different blade sizes across a surgical caseload spanning multiple patient ages, while the blades — being the component in direct, repeated contact with the tongue, teeth, and airway tube — are selected individually per case according to patient size. An operating room equipping itself for tonsillectomy and adenoidectomy procedures across a pediatric and adult caseload would typically purchase one or more McIvor frames together with a range of Ring Retractor Blades spanning the size numbers and sides needed for that caseload.

What sterilization protocol is recommended for this instrument?
The Ring Retractor Blades are fully compatible with steam autoclave sterilization at 134°C pre-vacuum parameters, the standard method for reusable ENT and oral surgical instruments. The endotracheal tube groove running the full length of the blade should be cleaned thoroughly at each reprocessing cycle — its channel geometry can retain organic debris from previous use, and residual material in the groove could affect how smoothly the endotracheal tube seats into the channel during subsequent use, potentially reducing the protective function the groove is designed to provide. The blade attachment feature — the slot or clip that engages the McIvor or Davis-Crowe frame — should be inspected for wear at each reprocessing cycle; a worn attachment that does not securely engage the frame could allow the blade to become displaced during use, compromising both tongue retraction and airway tube protection.

What certifications does this instrument carry, and are bulk or OEM orders available?
The Ring Retractor Blades (PS-7711 through PS-7718) are manufactured under an ISO 13485-certified quality management system covering German stainless steel material procurement, precision machining of the blade body, endotracheal tube groove, and frame attachment features, dimensional inspection across all eight variants, 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 size and side, with volume pricing available for hospitals, ENT surgical units, anesthesia departments, and surgical instrument distributors — facilities equipping for a mixed pediatric and adult caseload typically order across multiple sizes and both sides to ensure full coverage. 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.