Attribute Schema Library
Attribute schemamedical & dental supply

Surgical Instruments Attributes

Surgical instruments are the non-powered, hand-held or hand-manipulated devices described in 21 CFR 878.4800: forceps, hemostats, scissors, needle holders, retractors, elevators, curettes, rongeurs, osteotomes, scalpel handles. Medical and dental supply distributors sell them into hospital ORs and sterile processing departments, ambulatory surgery centres, oral and maxillofacial practices, podiatry, and veterinary clinics.

The data is hard because identity lives in an eponym, not a dimension. A record is a Mayo-Hegar or an Olsen-Hegar before it is anything else, and suppliers spell the same eponym five ways. Length arrives as 5-1/2", 5.5 in, and 140 mm for the same physical SKU. One pattern then fans out across length, curvature, tip configuration, tungsten carbide, and handedness — Sklar alone lists over 10,000 patterns, and each becomes dozens of near-identical titles.

The rest is buried. Steel grade, jaw detail in millimetres, and validated autoclave parameters live in a manufacturer IFU PDF or a line drawing, not in the price file the distributor loads.

Core

Every SKU needs these. Without them the record is not a product, it is a row.

Pattern Name
enum
Mayo-Hegar

The primary identity axis. Buyers shop by eponym first and everything else second; it is the top facet on specialist rails.

Instrument Category
enum
Needle Holder

Drives the category tree and the first filter click. Needle holders and hemostats look alike but are not substitutes.

Overall Length
number · mm
152 mm (6 in)

The second thing every buyer filters on. The same pattern ships in 4-3/4", 5-1/2", 6" and 7" and they are not interchangeable.

Material / Steel Grade
enum
AISI 420 stainless (ASTM F899)

Determines corrosion resistance and edge retention across repeated autoclave cycles. ASTM F899 grades, not marketing words.

Reusable or Single-Use
enum
Reusable

Governs whether SPD can reprocess it. Getting this wrong means either a discarded reusable or a reprocessed disposable.

Sterility As Supplied
enum
Non-sterile

Most reusable instruments ship non-sterile and must be processed before first use. ASCs filter hard on sterile-packed.

Tip / Jaw Pattern
enum
1x2 teeth (rat tooth)

Decides whether the instrument crushes or holds. Rat-tooth, serrated and atraumatic jaws are clinically different choices.

Curvature
enum
Curved

Straight vs curved vs angled is a hard requirement per procedure and per surgeon preference card.

Jaw / Tip Width
number · mm
1.5 mm

Separates near-identical patterns. Delicate vs heavy versions of one eponym differ only by a couple of millimetres at the tip.

Manufacturer Catalog Number (MPN)
identifier
10-1685-12

The number on the PO and on the instrument's laser mark. Cross-reference between brands runs on it.

GTIN-14
identifier
10887488152031

Required for GDSN publication and doubles as the UDI device identifier under a GS1 issuing agency.

Country of Origin
enum
Germany

A genuine purchasing criterion here. German-made and Sialkot-made instruments at the same pattern and length are priced apart.

Differentiating

What buyers actually compare on. This is where catalogs win or lose the filter.

Tungsten Carbide Inserts
boolean
Yes (gold ring handles)

The single biggest price and longevity driver. Signalled by gold ring handles, which is a picture, not a filterable field.

Blade Edge Type
enum
SuperCut (black handle)

SuperCut scissors pair one razor edge with one micro-serrated blade to stop tissue slipping. Black handles mark them.

Ratchet / Lock Type
enum
Box lock, 3-position ratchet

Box lock vs slide lock and the number of ratchet positions determine grip control and whether it fits the tray.

Instrument Grade
enum
OR grade (premium)

OR/premium grade vs floor grade is a real commercial tier. Floor grade stains and deforms after repeated sterilization.

Compliance & identifiers

Standards, regulatory data, and the identifiers channels reject you for missing.

FDA Regulation & Device Class
enum
21 CFR 878.4800 — Class I, exempt

Manual surgical instruments are Class I and 510(k) exempt subject to the limitations in 878.9 — but registration and listing still apply.

Reprocessing Parameters (ISO 17664)
text
Steam, 134 °C, 3 min, prevacuum

ISO 17664 requires validated processing instructions. SPD needs the cycle before the instrument enters the loop.

The fields that aren't in the schema at all

What most surgical instruments catalogs are missing.

The table above is the schema most catalogs already have. These are the attributes that usually aren't in it — each one surfaced by a signal from the live market rather than by an audit of what's already there. This is what Anglera's Schema Foundry does on a real catalog, in this category.

Search signal
+ Handedness

Most makers will build left-handed scissors and needle holders on request, and say so nowhere in the brochure or on the site. Buyers search 'left handed Mayo scissors' and land on zero results.

A left-handed surgeon's request becomes a phone call to the rep instead of a filter click, and the order routes to whoever answers first.

Supplier signal
+ Reprocessing / Sterilization Parameters

The manufacturer IFU PDF carries the validated cycle — 134 °C, 3 min, prevacuum. The catalog record carries at most 'Autoclavable: Yes'. The number never crosses from the PDF into the price file.

SPD cannot approve the instrument into the tray without a validated cycle, so the line sits unconverted while the buyer emails for an IFU.

Competitor signal
+ Tungsten Carbide Inserts (as a field)

TC shows up only as gold ring handles in the photo, or buried in a brand name like Carb-N-Sert in the title. Competitor rails expose it as a checkbox; most catalogs have no such field.

The highest-margin variant in the category cannot be filtered to, so buyers default to the cheaper all-steel listing sitting next to it.

Supplier signal
+ Jaw / Tip Width in mm

Delicate and heavy versions of one eponym differ by a millimetre or two at the tip. That dimension lives on the catalog line art, never as a numeric field on the record.

Two visually identical SKUs, one wrong for the procedure. The instrument is opened, found unsuitable, and cannot be returned once processed.

Review signal
+ Instrument Grade (OR vs floor)

Buyers ask outright whether an instrument is OR grade or floor grade, and the answer lives in a rep conversation or a brand tier the catalog never encodes as an attribute.

Floor-grade instruments bought as OR grade rust and deform after repeated sterilization, and the credit request lands months after delivery.

How Schema Foundry finds these

Messy in, governed out.

The same value, spelled every way medical & dental supply suppliers spell it. A filter only works once they agree.

Overall Length
5-1/2"5.5 in5 1/2 inch140 mm14 cm5.5"
140 mm (5-1/2 in)

One physical SKU, six facet values. Fractional inches sort as text, so 5-1/2" lands between 5" and 50" on the rail.

Pattern Name
Mayo-HegarMayo HegarMayoHegarHegar-MayoMayo/Hegar
Mayo-Hegar

Eponym hyphenation and name order split one pattern into five facet entries, each with a fraction of the inventory behind it.

Tungsten Carbide Inserts
TCT/CTungsten CarbideCarb-N-SertCarbide InsertGold Handle
Tungsten carbide inserts: Yes

Carb-N-Sert is Miltex's brand for it; 'gold handle' is the visual proxy. All five mean the same buying decision.

Material / Steel Grade
German StainlessSS 420420A400 Series SSSurgical Grade SteelMartensitic SS
AISI 420 stainless (ASTM F899)

'German stainless' names an origin, not a grade. ASTM F899 carries the ISO 7153-1 grades and is the defensible target.

What buyers ask

Every one of these should be answerable from the attributes above. If it isn't, that's a gap.

  • Is this the 5-1/2 inch Olsen-Hegar or the 6-1/2 inch?
  • Does it have tungsten carbide inserts or is it all stainless?
  • Is this German steel, or floor grade?
  • Does it ship sterile, or do we autoclave before first use?
  • Is it single-use or can SPD reprocess it?
  • What's the validated autoclave cycle — will it take 134 °C prevacuum?
  • Do you carry this pattern left-handed?
  • Are the jaws serrated or atraumatic?

What channels require

The same SKU, different mandatory fields per destination.

FDA GUDID / AccessGUDID
Primary DIBrand NameVersion or ModelFDA Product CodeSingle-use flagMRI Safety Status
GHX Health ConneXion (GDSN data pool)
GTIN-14GLNTrade Item DescriptionUDI-DICountry of OriginPackage hierarchy and quantity
Distributor's own site (Henry Schein, McKesson)
Pattern NameInstrument CategoryOverall LengthMaterial / Steel GradeCurvatureReusable or Single-Use
Amazon Business
BrandMPNGTINCountry of OriginFDA establishment registration and listing

Surgical Instruments data, in practice

Why is 'pattern' the primary attribute rather than a dimension?

Because that is how the category is bought. A surgeon's preference card says 'Metzenbaum, 7 inch, curved' — the eponym comes first and the dimensions qualify it. Specialist rails reflect this: Sklar's category URLs facet on instrument_pattern, instrument_length, instrument_material and instrument_disposable, in roughly that order of importance. If pattern is trapped inside a title string rather than stored as a governed enum, the buyer cannot make the first filter click, and every downstream facet is unreachable. With 10,000+ patterns in a full line, pattern is also where the normalization damage is worst — one eponym spelled five ways is five dead-end facet values.

Do surgical instruments need a 510(k)?

Generally no. A manual surgical instrument for general use under 21 CFR 878.4800 is a Class I device and is exempt from premarket notification, subject to the limitations in 21 CFR 878.9. The exemption is narrower than it looks: an instrument with a specialized use in a specific medical specialty is classified elsewhere in parts 868–892 and may carry different requirements. Exemption from 510(k) is also not exemption from everything else — establishment registration, device listing, and UDI labelling with a DI submitted to GUDID still apply, which is why the UDI-DI belongs on the record even for a $12 hemostat.

Should length be stored in inches or millimetres?

Store millimetres as the canonical numeric field and carry the fractional inch as a display label. This category is genuinely bilingual — manufacturers publish 5-1/2" (140 mm) and 6-1/2" (165 mm) side by side on the same catalog line — so you cannot pick one and discard the other. The failure mode is storing '5-1/2"' as text: it sorts alphabetically, it will not answer a range query, and it fragments against '5.5 in' and '140 mm' from other suppliers on the same physical SKU. Normalize to a number plus a unit, then render whichever the buyer expects.

What do the gold and black ring handles mean?

They are a convention the whole category follows, and they encode two separate attributes. Gold ring handles indicate tungsten carbide inserts at the cutting or gripping surface — harder than steel, so the instrument holds an edge or grips a fine needle far longer. Black ring handles indicate SuperCut scissors: one razor-honed blade paired with one micro-serrated blade that stops tissue slipping. One black handle and one gold handle together means SuperCut with tungsten carbide. All of this is legible to a buyer looking at the photograph and invisible to the filter rail unless you extract it into two boolean fields.

More medical & dental supply schemas

Dental HandpiecesDiagnostic EquipmentExam GlovesSyringes & NeedlesWound Care

Run this against your own surgical instruments.

Bring the category. We'll show you which of these attributes your catalog is missing — and the ones we find that aren't on this page yet.

Book a demo