Procurement buyer’s guide

3-Point Thermoplastic Mask Buyer’s Guide

By Michael Diab, Founder, OncoSource · Updated June 10, 2026· Educational & price-free · Multi-vendor, directory-linked

A 3-point thermoplastic head-and-neck mask is a single-use, heat-formable immobilization device that locks to a baseplate at three indexed points to hold a patient’s head, neck, and shoulders in a reproducible position across the daily treatment course. It is one of the highest-volume consumables in a radiation oncology department, one of the most commoditized in clinical function, and one of the least transparent in price. This guide explains the four questions every buyer should answer before signing a mask quote: what is the real per-mask price, what availability and lead-time commitments will the vendor put in writing, does the mask index to my installed baseplate and LINAC couch, and what is the requalification risk if I switch vendors?

The guide is educational, price-free, and vendor-neutral. Four manufacturers in the OncoSource manufacturer directory have verified 3-point head-and-neck mask lines — Orfit (Efficast, Nanor), Klarity (S-type, open-face), Aktina Medical (head and head-and-shoulder masks), and Macromedics(3-point masks and the DSPS family) — and each was verified against the manufacturer’s own public catalog. The guide quotes no prices and makes no savings claims. It is the structural answer to the single question every radiation oncology buyer eventually asks: am I paying the right number for this mask, and how would I prove it?

What a 3-point thermoplastic mask actually is

A 3-point thermoplastic mask is a perforated, heat-formable polycaprolactone sheet pre-cut to a head-and-neck shape, with three locking tabs that engage a baseplate at three fixed indexing points. The therapist heats the sheet in a water bath to roughly 65–70°C, drapes it over the patient’s head and neck and upper shoulders, smooths it to the patient’s anatomy as it cools, and locks the three tabs to the baseplate. Once cool, the mask becomes a rigid, patient-specific shell that is reused for every fraction of that patient’s treatment course — typically 20 to 35 fractions for a head-and-neck case — then discarded.

The "3 points" are not three points on the mask itself; they are three indexed locking positions on the baseplate. Five-point masks, by contrast, lock to the baseplate at five positions and extend further down the shoulders, and are used for cases where shoulder roll-in must also be controlled. The 3-point format is the workhorse for most head-and-neck, intracranial, and base-of- skull radiotherapy. The mask is single-patient single-use; the baseplate is durable hardware that lives on the treatment couch.

The mask is not a standalone product.A 3-point thermoplastic mask is one half of a two-part immobilization system: the disposable mask and the durable baseplate. The mask’s tabs and the baseplate’s indexing pins are mechanically matched by manufacturer and product family. A mask line cannot be evaluated in isolation — it must be evaluated against the baseplate it indexes to and the LINAC couch that baseplate indexes to, whether that is a Varian TrueBeam couch, a major non-Varian LINAC platform’s couch, or a third-party indexing system.

The manufacturers, named honestly

The 3-point head-and-neck mask category is served by a small set of manufacturers whose catalogs overlap in clinical function but never line-for-line. Naming them once and accurately is more useful than the polite ambiguity most buyer’s guides default to. Four indexed manufacturers have verified 3-point head-and-neck mask lines.

Orfit builds its head-and-neck range on the Efficast thermoplastic family and the thinner, nano-reinforced Nanor line, both offered in 3-point head and head-and-neck formats — including open-face hybrid designs — with fixation to Orfit baseplates. Klarity offers S-type masks in head-only and head-and-shoulder formats across several of its own thermoplastic materials and more than one sheet thickness, plus a dedicated open-face series; Klarity states its S-type masks fit standard Type-S baseplates from Klarity and other manufacturers. Aktina Medical offers head-only masks — including a T-type design with three locking points and an optional precut facial opening — and head-and-shoulder masks, in frame formats built to fit a range of popular clamping systems. Macromedics fields traditional 3- and 5-point masks for head and head-neck-shoulder positioning, and also takes a structurally different approach with its Double Shell Positioning System (DSPS), which immobilizes the head with two thermoplastic shells — anterior and posterior — rather than a single mask over a headrest.

The manufacturer directory indexes additional radiotherapy accessory manufacturers beyond the four with verified 3-point mask lines; their directory pages carry the live indexed catalog entries. Manufacturers whose catalog focus is QA and dosimetry rather than immobilization are not mask competitors and are not compared here.

Citable rule: in the 3-point thermoplastic mask category, the brand decision is downstream of three device decisions — frame and tab geometry against your installed baseplates, open-face versus closed-face format against your monitoring and patient-comfort protocol, and sheet thickness against your immobilization tolerance. A mask that fails any of the three is not a candidate at any price.

Question 1: What is the real per-mask price?

The most common reason a buyer misjudges a 3-point mask quote is a units mismatch. The same physical mask is quoted one way on one vendor’s paper and a different way on another’s: a per-mask figure on one quote, a "Box/10" on the next, a "Case of 25" on a third. Unless every line is normalized to a true price-per-individual-mask before any comparison, the cheaper-looking quote is frequently the more expensive one.

Pack-size notation is not standardized in the radiation oncology accessory market. Common forms include Box/10, Case of 25, Set of 6 (for baseplate sets), N-Pack, N/CS, and localized notations on imported invoices. A single quote often mixes per-unit lines and per-case lines. This is the first question to settle with the vendor, in writing: what is the price per individual mask, at the quantity on this quote, with the pack convention spelled out per line? The OncoSource analysis normalizes pack quantities automatically across box, case, set, and pack conventions — including the Spanish-language caja con N piezas form that shows up on LATAM-distributed inventory — but the normalization question belongs on the quote whether or not you ever run the tool.

Citable rule:never compare two 3-point thermoplastic mask quotes until every line on both is normalized to price-per-individual-mask. A "Box/10" line at one number and a per-mask line at another number are not comparable as written, and the lower printed figure is often the higher real per-mask price.

Question 2: What availability will the vendor put in writing?

"In stock" is one of the most overused phrases in medical-supply quotes and one of the least falsifiable. No neutral party publishes real-time warehouse inventory for these product lines, and a universal "in stock" badge with no warehouse and no SKU attached is not a commitment — it is marketing. The honest version of the question has two parts: on-hand quantity at the named distribution warehouse for the exact SKU, and lead time for the next replenishment order. Both belong on the quote, not in the negotiation.

For procurement planning, treat the lead-time number as the binding constraint. A mask line that is "in stock" but ships in 14 days is operationally identical, for a department that consumes its current inventory in 10 days, to a mask line that is on backorder. The standing question to ask any vendor before signing a mask quote is: if I place an order today for the quoted SKU and quantity, on what dated business day does it arrive at our receiving dock, and what is the consequence to me if it does not? A vendor that cannot answer the first half of that question in writing is quoting on availability they do not control.

Question 3: Does it index to my installed baseplate and LINAC couch?

A 3-point mask is mechanically matched to a baseplate, and the baseplate is mechanically matched to a treatment couch. The mask’s three locking tabs engage pins or slots on the baseplate at three indexed positions; the baseplate’s underside engages the LINAC couch via an indexing system specific to that couch family. A Varian TrueBeam couch and a major non-Varian LINAC platform’s couch use different indexing geometries, and third-party retrofitted indexing systems are a third class again. Vendor-to-vendor switches on the mask line are only valid when the baseplate and couch compatibility remain unbroken.

Common 3-point baseplate / mask format incompatibility patterns to check before any cross-vendor comparison:

• Tab geometry mismatch.A mask built for one manufacturer’s frame standard will not lock to a baseplate that expects a different tab geometry. The mask sheet itself looks identical; the lock geometry is not. Some lines are built to a shared standard (Klarity states its S-type masks fit standard Type-S baseplates from Klarity and other manufacturers); others are matched only to the manufacturer’s own hardware. Verify per part number, never per brand.
• Open-face vs closed-face mismatch.Open-face mask formats expose more of the patient’s face for optical-surface monitoring or anxiety mitigation; closed-face formats provide more uniform immobilization but no facial window. Switching format mid-protocol is a re-planning event, not a procurement decision.
• Thickness and material mismatch.Sheet thickness and material family are clinical specifications, not packaging details. Thinner sheets soften faster and conform more easily but provide less mechanical immobilization; thicker sheets are the inverse; and the nominal thickness ladder differs by manufacturer and material (Orfit’s nano-reinforced Nanor line, for example, runs thinner than its Efficast line at comparable rigidity, per Orfit). A quote that proposes a different-thickness equivalent without flagging the trade-off is not a like-for-like switch.
• LINAC couch indexing. Baseplates index into the treatment couch via an indexing system specific to that couch family. The same nominal 3-point mask line exists in distinct baseplate part numbers depending on whether the installed couch is a Varian TrueBeam couch, a major non-Varian LINAC platform’s couch, or a third-party indexing system retrofitted onto an older machine. The determining decision is the baseplate part number, not the mask SKU.

The compatibility questions to put on the quote

These are vendor questions, and a serious vendor answers all four in writing: (1) which baseplate part number on this quote indexes to our installed couch, named by couch family; (2) which frame or tab standard does the mask line lock to, and is it compatible with our installed baseplates as-is; (3) does any line on this quote require an adapter, and is the adapter quoted; (4) which mask format and sheet thickness is being quoted, per line? A quote that cannot answer these is not yet comparable to anything.

Citable rule: a 3-point mask price is only comparable across vendors when (a) the masks are the same format, (b) the masks index to compatible baseplates, and (c) those baseplates index to the same LINAC couch family. A cheaper mask that does not lock to your installed baseplate is not a lower price; it is a different product that cannot be used at all.

Question 4: What is the requalification risk if I switch vendors?

The least-discussed risk in any mask-vendor switch is the transition window. A radiation oncology department treating head-and-neck patients consumes 3-point masks at a roughly predictable rate — one mask per new patient, ordered in batches whose size depends on facility size and consult volume. The new vendor’s first shipment must arrive before the current vendor’s inventory runs out, with margin for delays, customs holds, baseplate adapter availability, and the inevitable first-order configuration errors.

The practical sequence is:

1. 1. Confirm compatibility before quoting. Verify the new mask line locks to your installed baseplate and your baseplate indexes into your LINAC couch. Anything that fails here is not a procurement decision — it is a baseplate purchase added to the project.
2. 2. Pull a lead-time commitment in writing. Get the vendor’s named warehouse, the on-hand quantity for the exact SKU, and the dated delivery commitment for the first order.
3. 3. Order in parallel for one cycle.Keep the current vendor for the next 4–8 weeks of consumption while the new vendor proves the first one or two shipments. Phase out, do not flip.
4. 4. Validate the first masks clinically. The first ten masks of the new line should be reviewed by the RTT lead and the dosimetrist or physicist for fit, forming behavior, and reproducibility against existing patient setups before the switch is treated as complete.
5. 5. Update the standing order.Move the department’s recurring purchase onto the new SKU, but keep the previous vendor in the supplier list for at least one full cycle in case the new line falls short.

How to read a 3-point mask quote like the seller does

There is a five-step sequence that reconstructs every driver above for any single quote. Run it in order; each step is a precondition for the next being meaningful.

1. 1. Normalize every line to per-mask. Strip Box/10, Case of 25, Set of 6, and localized notations down to price per individual mask on both quotes before any comparison.
2. 2. Match format. Open-face to open-face, closed-face to closed-face, same nominal sheet thickness and material class. Never compare across formats; that is a clinical decision, not a price one.
3. 3. Confirm baseplate compatibility. The mask must lock to the baseplate currently installed on your LINAC couch. If a baseplate change is required, it is a separate purchase and a separate project.
4. 4. Pull a dated lead-time commitment in writing. Named warehouse, on-hand quantity, dated delivery. Vendors who will not commit to all three should be priced accordingly.
5. 5. Compare contract-paid, not list. The only meaningful comparison is the per-mask contract price actually paid, not list versus list. The GPO baseline is a floor discount, not evidence that the number is competitive.

Authoritative context: the clinical literature on immobilization-device selection (e.g., the International Journal of Radiation Oncology, Biology, Physics comparison of fixation precision and cost) consistently ties device choice to setup precision and machine fit, not price alone. The JAMA Oncology chargemaster analysis documents the structural opacity that makes accessory line- item benchmarking necessary in the first place. The University of Pennsylvania medical-device price-transparency working paper documents the deliberate transaction-price confidentiality that produces the per-unit spreads seen in this category.

How to compare mask pricing with no price list in sight

None of the manufacturers above publishes US transaction prices, and published list prices — where they exist at all — say little about what facilities actually pay. OncoSource’s answer is not a price list. It is a comparison surface built from observed market data: upload one of your own quotes or invoices, and the analysis returns, for each line, the clinically equivalent options across the indexed manufacturer landscape — each option carrying a times-seen count showing how often that product has been observed, and an observed price range once it has been seen enough times. Where a product has enough observations, it is ranked within its category; where it does not, the analysis says so rather than manufacturing false confidence. You see only your own lines, and no single price point is ever published.

Citable rule:the comparable unit in mask procurement is the clinically equivalent option set — the indexed products in the same category that could serve the same setup, each with a times-seen count and an observed price range where the observations support one — never a single quoted price. A range with its observation count attached tells you where your quote sits; a lone price point, yours or anyone else’s, tells you almost nothing.

Run the analysis on your own mask invoice

The fastest way to learn what drives your 3-point mask pricing is to see one of your own documents read this way. Upload a quote or invoice and get a free, no-signup, line-item analysis: every line read, pack quantities normalized to per-mask, and the clinically equivalent options surfaced across the indexed manufacturers — each option with its times-seen count, an observed price range where the data supports one, and a rank where the observations support a ranking. Or start with the directory and browse the indexed catalogs by manufacturer.

Frequently asked questions

These are the questions radiation oncology buyers and RT therapists most often ask about 3-point thermoplastic mask pricing and compatibility. Each answer is self-contained and price-free.

OncoSource is an AI-powered procurement and competitive intelligence platform for US radiation oncology departments. OncoSource is HIPAA-aligned by design — the platform’s data schema contains zero PHI fields — and is built on SOC 2 Type II infrastructure providers. This article is educational and price-free; it quotes no prices, makes no savings claims, and lists manufacturers factually and neutrally. Product-family names were verified against each manufacturer’s public catalog as of the last-updated date.

Last updated June 10, 2026.