Thornstein fixed caliper 2 3/4 aphakic: 3.5mm, phakic: 4.0mm

Thornstein fixed caliper 2 3/4 aphakic: 3.5mm, phakic: 4.0mm

Fixed caliper supports consistent measurement workflows in dental and ophthalmic procedures.
The 2 3/4-inch length offers a compact, manageable instrument profile.
Aphakic measurement is clearly specified at 3.5mm for dependable reference.
Phakic measurement is clearly specified at 4.0mm for straightforward reference.
Fixed construction helps maintain a stable profile during routine handling.
Separate aphakic and phakic specifications support selecting the intended measurement.

Brand: surgivalley

(Available)

OEM & International Cross-Reference Equivalents

UNIVERSAL NOMENCLATURE EU MDR 2017/745 & US FDA GUDID Classification

EMDN (EUDAMED): L179001

OPHTHALMOLOGY SURGICAL GAUGES, REUSABLE

GMDN Code: 32845

Surgical depth gauge, reusable

Manufacturer / Benchmark	Catalog Number (REF)	Specification Match
Aesculap	`MB536R`	Exact Pattern Match
Innomed	`7250-02`	Exact Pattern Match
Katena	`K1-5173`	Exact Pattern Match
Rumex	`SV-SET-OPH-24-01`	Exact Pattern Match
Teleflex	`KM48468`	Exact Pattern Match

Notice of Nominative Fair Use: All manufacturer names, trademarks, symbols, and catalog part numbers are referenced solely for comparative identification, cross-reference, and equipment compatibility guidance. SurgiValley is an independent surgical manufacturer and is not affiliated with, sponsored by, or endorsed by any of the respective trademark owners.

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SKU: 999040690

Categories: Calipers, Rulers, Markers, & Incision Gauges, Calipers

Tags: Calipers

Fixed-Caliper Measurement for Dental and Ophthalmic Workflows

The Thornstein fixed caliper is a compact measuring instrument designed for consistent dimensional assessment in dental and ophthalmic workflows. Its fixed 2 3/4-inch form provides a straightforward handling profile for positioning and comparison, while the clearly identified 3.5 mm aphakic and 4.0 mm phakic measurements support selection of the appropriate reference during relevant tasks. By combining a defined instrument length with two named measurement options, it helps organize measurement steps without relying on improvised tools. The caliper’s specialty-neutral design allows it to fit naturally into professional settings where controlled, repeatable dimensional checks are part of instrument use.

Use Cases

Measure or compare dimensions using the fixed 3.5 mm aphakic reference.
Measure or compare dimensions using the fixed 4.0 mm phakic reference.
Support ophthalmic workflows that require distinction between aphakic and phakic measurements.
Support dimensional assessment tasks within dental instrument workflows.
Use the compact 2 3/4-inch format when a short, directly handled caliper is appropriate.

Specifications

Care & Handling

Clean the caliper according to facility protocols and the applicable instructions for use.
Inspect the fixed measuring points and overall instrument condition before and after handling.
Handle the caliper carefully to preserve the defined measurement references and physical alignment.
Store it in a clean, protected location to reduce the risk of damage or contamination.