Hegar vs Pratt Dilators: Procurement Checklist

For procurement teams, comparing Hegar and Pratt cervical dilators is not a choice between two universal specifications. The family names identify established instrument patterns, but the exact sizes, paired ends, working length, markings and set contents depend on the supplier catalogue. A reliable approval process therefore starts with documented configuration rather than the name printed on a quotation.

This article provides a neutral framework for comparing supplier records, preparing an RFQ and checking delivered sets. It addresses catalogue and documentation questions rather than clinical technique or preference. Product-specific answers should come from the current supplier catalogue, quotation, product record and applicable manufacturer instructions for use.

Family Names Do Not Define One Universal Specification

Hegar and Pratt should be treated as instrument-family names, not complete purchasing specifications. Manufacturer catalogues show why. CooperSurgical lists Hegar and Pratt ranges with manufacturer-specific paired sizes, while Aesculap publishes distinct Hegar and Pratt set entries. These examples support a comparison method based on the exact reference number, configuration and size span. They do not establish a universal dimension, tip design, material, marking system or set composition for either family.

Before comparing prices or approving a substitution, request the supplier’s current itemized catalogue record. The record should identify the family name alongside the information needed to distinguish one configuration from another. If a quotation states only “Hegar set” or “Pratt set,” it is incomplete for a controlled procurement decision.

• Use the exact supplier catalogue and reference number.
• Treat catalogue examples as manufacturer-specific, not universal.
• Require an itemized list for every set and replacement item.
• Separate documented facts from assumptions based on instrument names.

Compare Sizing, Working Length and Configuration

Sizing systems are one of the most important differences to normalize. A Hegar catalogue may present paired sizes in millimetres, while a Pratt catalogue may use French sizes or another supplier-specific convention. CooperSurgical’s referenced Hegar set pairs 3/4 mm through 17/18 mm, whereas its listed Pratt set pairs 13/15 Fr through 41/43 Fr. These are catalogue examples only and should not be used as a standard for every supplier.

A second catalogue example shows why working length and configuration belong in the same review. Integra’s MeisterHand catalogue presents Pratt entries as double-ended, lists a length of 11.5 inches or 292 mm, and provides French sizes with millimetre equivalents for the referenced configuration. Buyers should verify whether the quoted item has the same paired-end arrangement, length convention and size representation rather than assuming that a similar family name means an equivalent item.

• Record whether sizes are stated in millimetres, French units or both.
• Confirm the conversion basis when two sizing systems are shown.
• Compare working length using the supplier’s stated measurement method.
• Document whether each instrument is single-ended or double-ended.
• Check the exact paired-end combination, not only the smallest and largest size.

Normalize Set Contents, Span and Reference Numbers

A set comparison should be performed line by line. Record the number of instruments, each end or paired size, the stated set span and the reference number assigned to the complete set and individual replacements. A set with the same number of pieces as another set may still differ in its size progression, paired ends, working length or configuration. CooperSurgical’s Hegar and Pratt listings illustrate this principle, and Aesculap’s separate set entries reinforce the need to compare exact catalogue records.

For an RFQ, ask suppliers to reproduce the approved configuration in a structured quotation. Include the family name, catalogue reference, sizing system, pairings, working length, markings, packaging or set arrangement where documented, and any proposed substitutions. If a supplier offers an equivalent, require a written comparison against the requested reference rather than accepting a name-only substitution.

• Complete set reference number and individual item references.
• Number of pieces and itemized paired-end sizes.
• Smallest and largest stated sizes and intermediate progression.
• Working length and measurement convention.
• Any documented variation, substitution or discontinued reference.
• A clear distinction between quoted configuration and optional alternatives.

Verify Markings, Product Records and Market Documentation

Readable markings should be evaluated as a documented product attribute, not assumed from the family name. Ask whether the catalogue or product record identifies the marking system, location and units. The receiving team should be able to compare the delivered marking with the approved record without interpreting an unfamiliar scale. If markings are not described, record that omission and request clarification before approval.

Market documentation must also be matched to the destination and purchasing route. The FDA Product Code HDQ identifies a fixed-size cervical dilator under 21 CFR 884.4530 as Class I in the United States. That classification is general product-code information; it does not establish product-specific registration, authorization or market status for SurgiValley or another supplier. Ask for the documentation applicable to the intended market and product record, and have the responsible quality or regulatory function review it.

• Confirm units and marking details in the product record.
• Match the delivered reference number to the approved quotation.
• Request market-specific labeling and documentation where applicable.
• Do not treat a general device classification as product-specific authorization.
• Escalate missing or conflicting records before purchase approval.

Confirm IFU, Reprocessing and Replacement Matching

For reusable instruments, current care and cleaning documentation is a procurement checkpoint. AORN’s 2026 public instrument-cleaning update states that delayed-cleaning steps should follow the device IFU when soil has dried. Buyers should therefore request the current IFU applicable to the quoted device or configuration. Do not approve a reprocessing program from a generic assumption, and do not insert cycle parameters that are absent from the applicable manufacturer documentation.

Replacement matching should be controlled through references and configuration, not visual similarity alone. When replacing one instrument in an existing set, compare the original reference, size or paired sizes, working length, markings and double-ended arrangement. Ask the supplier to confirm compatibility with the existing set record and to identify any change in catalogue reference or configuration.

• Current applicable manufacturer IFU for the exact device or configuration.
• Care and cleaning instructions supplied by the manufacturer.
• A documented process for handling revised or superseded IFUs.
• Original and replacement reference numbers.
• Size, pairing, length and marking match for replacement items.
• A written explanation for any proposed variation.

Receiving-Inspection Checklist Before Set Approval

Receiving inspection should verify the delivered set against the approved record before it enters inventory or a clinical workflow. The inspection is administrative and product-focused: confirm identity, count, configuration and documentation. If the delivery differs from the quotation, quarantine or escalate it according to the organization’s quality process rather than resolving the discrepancy by assumption.

A concise receiving record can make future replacement and audit work easier. Keep the approved quotation, catalogue record, packing information and applicable IFU together. Record discrepancies such as missing pieces, different paired sizes, an unexpected reference number, unclear markings or absent documentation. The final acceptance decision should be made by the designated procurement or quality authority.

• Verify supplier, product family and complete reference number.
• Count all instruments and compare each paired end with the approved list.
• Check working length and visible markings against the record.
• Inspect for obvious damage, deformation or identification discrepancies.
• Confirm the applicable IFU and documentation were received.
• Record, escalate and resolve every variance before set approval.

Approve the Documented Configuration

The practical answer to Hegar versus Pratt procurement is not that one family should be selected universally. The decision is whether the proposed configuration is clearly defined and supportable for the intended market and facility. Compare sizing systems, paired ends, working length, set span, markings, references, documentation and replacement requirements using the supplier’s exact records.

Use a structured RFQ and receiving checklist, then obtain the current applicable manufacturer IFU and applicable market documentation before approval. Existing catalogue pages and product records should answer product-specific questions; this comparison framework helps your team ask those questions consistently and identify gaps before a set is accepted.

Frequently asked questions

Are Hegar and Pratt set sizes standardized across manufacturers?

No universal set composition should be assumed. The supplied catalogue examples show manufacturer-specific paired sizes and configurations. One CooperSurgical Hegar example lists pairs from 3/4 mm through 17/18 mm, while its referenced Pratt example uses French-size pairings. Treat these as catalogue-specific examples and compare the complete itemized record for every quotation.

How should buyers compare millimetre and French sizing systems?

Record the unit shown for every size, identify whether a supplier provides an explicit millimetre equivalent, and confirm how paired ends are represented. Do not create conversions from memory when the catalogue does not state them. Integra’s referenced catalogue provides French sizes with millimetre equivalents for a specific Pratt configuration, demonstrating why the supplier’s own documented relationship should guide the comparison.

Which details should appear on a dilator-set quotation?

The quotation should identify the family, complete set reference, individual item references, number of pieces, paired-end sizes, sizing system, working length, markings where documented and any proposed substitutions. It should also identify the applicable product record and current applicable manufacturer IFU, plus documentation relevant to the destination market. A name-only quotation does not provide enough information for a controlled comparison.

How should a replacement dilator be matched to an existing set?

Start with the original set and item reference numbers, then compare the replacement’s size or paired sizes, working length, double-ended configuration and markings. Ask the supplier to confirm the match in writing and to identify any catalogue revision or substitution. A similar appearance or family name is not sufficient evidence that the replacement belongs to the existing configuration.

What should receiving teams verify before accepting a set?

Receiving teams should compare the supplier, set reference, item count, paired sizes, working length and markings with the approved record. They should also confirm that the expected IFU and other required documentation were supplied. Any missing item, unexpected reference, configuration difference or documentation gap should be recorded and escalated under the organization’s quality process before the set is approved.

Related reading

• What Buyers Should Provide When Requesting an Instrument Equivalent
• How to Specify Surgical Instrument Dimensions, Working Ends, Handles and Configurations
• How to Compare Surgical Instrument Sets Using Itemized Contents
• Surgical Instrument Documentation Checklist for US, EU and UK Buyers

Sources

• www.coopersurgical.com
• www.coopersurgical.com
• app.sales.integralife.com
• www.aesculapusa.com
• www.accessdata.fda.gov
• www.aorn.org

Dilator Metallurgy & Autoclave Sterilization Standards (ASTM F899)

Hegar and Pratt cervical dilators are crafted from premium Austenitic AISI 304 or Martensitic AISI 420 stainless steel conforming to ASTM F899 surgical instrument specifications. Dilator shafts undergo multi-stage electrolytic and mechanical polishing to achieve an ultra-smooth specular mirror finish (Ra < 0.2 µm), ensuring zero surface roughness or micro-abrasions during cervical dilation. Each dilator is chemically passivated in accordance with ASTM A967 to guarantee complete corrosion resistance against biological fluids. Fully validated for repeat hospital CSSD vacuum steam autoclave sterilization at 134°C (273°F).