Biomedical engineering guide

C-arm Buying Guide

C-arm buying guide for OR and procedure workflow covering detector size, pulsed fluoroscopy, mobility, sterility, dose management, storage, service, warranty, and acceptance.

Biomedical EngineersRadiology ManagersProcurement OfficersHospital AdministratorsIT/PACS Teams

Original vendor-neutral diagram

Medical imaging information pathway

Editorial context: The RFQ should define DICOM services, worklist, storage, dose or exposure records where relevant, network responsibility, cybersecurity, and acceptance tests for the complete workflow.

Procurement Starting Point

A C-arm is bought for movement inside crowded clinical spaces. OR workflow, positioning, sterility, dose control, storage, battery or power behavior, and service support matter as much as image quality.

Use this buying guide after the hospital has reviewed the main C-arm knowledge hub. The main page explains clinical use, workflow, components, maintenance, failures, lifecycle planning, and site-readiness background; this page converts that background into procurement decisions, RFQ clauses, scoring prompts, and vendor clarification questions.

The procurement file should make one thing clear before commercial comparison begins: what configuration is required, what is optional, what the vendor must prove, and what the hospital must prepare before installation.

Define Before Buying

Clinical use: orthopedics, urology, pain, vascular access, spine, trauma, or general surgery
Mobile versus fixed use, room movement, parking, and storage needs
Detector or image intensifier size and required field of view
Image storage, DICOM, printer, and dose documentation requirements

User Requirement Checklist

Surgeons test positioning and field of view
OR staff test sterility, draping, parking, and movement
Biomedical checks battery/power, brakes, cable, detector, and service
IT confirms DICOM/export if images go to PACS

Mandatory vs Preferred Specifications

Mandatory specifications should describe patient safety, minimum clinical capability, compatibility, uptime protection, and site fit. Preferred specifications should be scored separately so hospitals do not reject acceptable bids for features that are useful but not essential.

Mandatory requirements

Detector or image intensifier size suitable for intended procedures
Pulsed fluoroscopy, dose display, last-image hold, and collimation
Mobility, brakes, C-arm movement, monitor cart, and sterile drape workflow
Image storage/export, DICOM where required, warranty, and service response

Preferred or scored requirements

Flat panel detector where image quality and dose justify cost
Vascular or subtraction package where procedure mix requires it
Battery-supported movement or compact design for busy OR corridors

Configuration Choices

Ask vendors to price the base configuration and the optional packages separately. This prevents a low base price from hiding software, accessories, site work, or service items that will be needed after award.

Choice	When to Select	Procurement Risk
Mini C-arm	Extremity imaging and small orthopedic procedures	Not suitable for larger anatomy.
Standard mobile C-arm	General OR, orthopedics, urology, pain	Check field size and room movement.
Advanced flat-panel C-arm	Spine, vascular, high-demand OR imaging	Higher detector and service cost.

Vendor Comparison and Demonstration

Run the same demonstration script for every shortlisted vendor. The demonstration should be scored by users, biomedical engineering, IT/PACS, facilities, and procurement where relevant.

Vendor comparison points

Image quality, field of view, C-arm depth, orbital movement, and monitor visibility
Dose tools, pulsed modes, storage, DICOM, and printer/export options
Mobility, brakes, cable management, drapes, and cleaning
Detector/tube warranty, battery coverage, and service support

Questions to ask during demonstration

Move the C-arm through a simulated OR route and position around a table.
Show pulsed fluoro, dose display, last-image hold, and image save/export.
Show draping, cleaning, brake use, and cable management.
Show service access, battery replacement, and fault logs.

Technical Evaluation Criteria

The technical evaluation should reward evidence, not brochure wording. Each bidder should identify the exact datasheet page, user manual section, service statement, or site planning document that supports its response.

Score OR movement and positioning with actual users.
Score dose tools and image quality for intended procedures.
Score sterility and cleaning workflow.
Score service support for high-wear mobile components.

Scoring Area	Evidence to Request	Why It Matters
Clinical fit	User sign-off from scripted demonstration and application list	Prevents buying a configuration that looks strong on paper but slows the department.
Technical compliance	Clause-by-clause response with datasheet or manual evidence	Makes vendor responses comparable and reduces post-award disputes.
Service readiness	Local engineer count, spare-parts plan, response time, PM schedule, escalation route	Protects uptime after warranty begins.
Lifecycle cost	Five-year price schedule for options, consumables, service, software, and major parts	Shows the real cost beyond the base purchase price.

Accessories, Consumables and Options to Price

The quoted package should show what is included, what is optional, what is reusable, what is consumable, and what has a replacement interval. This is where many radiology tenders lose cost control.

Drapes, sterile covers, footswitches, printer, storage, DICOM, monitor cart, batteries
Tube, detector, brakes, wheels, cables, PM kits, and service
Radiation protection PPE and mobile shields

Site Responsibility Matrix

Do not award until responsibility for room works, utilities, network, shielding, HVAC, delivery, third-party interfaces, and safety approvals is written down. A missing responsibility matrix usually becomes a variation order.

Responsibility	Vendor Must State	Hospital Must Confirm
OR workflow	Space, parking, power outlets, cleaning, and storage needs	OR route, sterile SOP, and parking location
Radiation safety	Dose tools, PPE, mobile shields, and training	Radiation safety officer review
IT/export	DICOM or USB/export options and image storage	PACS acceptance if connected
Service	Battery, wheels, brakes, cables, tube, detector support	Biomedical PM and downtime plan

Warranty, Service and TCO Comparison

Warranty and service comparison

Separate tube, detector, monitor, battery, wheels, brakes, cables, and software warranty.
Clarify accidental damage, collision damage, liquid ingress, and cleaning damage exclusions.
Ask for mobile component spare parts and response time.
Compare post-warranty service and loaner availability.

Total cost of ownership items

Detector/tube, batteries, wheels, brakes, cables, drapes, PPE, service, and downtime
High mobile use can increase wear-part cost.

Acceptance Requirements Before Award

Acceptance conditions should be part of the tender, not negotiated after installation. Link final payment to configuration verification, safety checks, image or performance baseline, integration tests, user training, biomedical handover, documentation, and warranty start date.

Verify C-arm movement, image quality, dose tools, accessories, storage/export, DICOM, and safety items.
Test brakes, wheels, battery/power, emergency stop, image save, and training.
Record warranty, PM schedule, and service contacts.

Common Buying Mistakes

Buying image quality without testing OR movement.
Omitting drapes, footswitches, printer, DICOM, or PPE.
Ignoring mobile wear items and accidental damage exclusions.
Not involving OR users in demonstration.

Buyer Checklist

Read the main C-arm equipment page before finalizing technical clauses.
Confirm workload, user group, room, utilities, IT integration, accessories, consumables, service model, and budget approval.
Require clause-by-clause compliance with evidence and declared deviations.
Score configuration, demonstration, site readiness, service, warranty, lifecycle cost, and acceptance evidence before opening commercial preference.
Attach acceptance requirements and final payment hold points to the purchase order.

C-arm Configuration Decision Matrix

Choice	When to Select	Procurement Risk
Mini C-arm	Extremity imaging and small orthopedic procedures	Not suitable for larger anatomy.
Standard mobile C-arm	General OR, orthopedics, urology, pain	Check field size and room movement.
Advanced flat-panel C-arm	Spine, vascular, high-demand OR imaging	Higher detector and service cost.

C-arm Technical Scoring Prompts

Scoring Area	Evidence to Request	Why It Matters
Clinical fit	User sign-off from scripted demonstration and application list	Prevents buying a configuration that looks strong on paper but slows the department.
Technical compliance	Clause-by-clause response with datasheet or manual evidence	Makes vendor responses comparable and reduces post-award disputes.
Service readiness	Local engineer count, spare-parts plan, response time, PM schedule, escalation route	Protects uptime after warranty begins.
Lifecycle cost	Five-year price schedule for options, consumables, service, software, and major parts	Shows the real cost beyond the base purchase price.

C-arm Site Responsibility Matrix

Responsibility	Vendor Must State	Hospital Must Confirm
OR workflow	Space, parking, power outlets, cleaning, and storage needs	OR route, sterile SOP, and parking location
Radiation safety	Dose tools, PPE, mobile shields, and training	Radiation safety officer review
IT/export	DICOM or USB/export options and image storage	PACS acceptance if connected
Service	Battery, wheels, brakes, cables, tube, detector support	Biomedical PM and downtime plan

Checklist

C-arm procurement file

Clinical workload and user requirements approved
Mandatory and preferred specifications separated
Complete bill of materials priced
Vendor deviations declared and evaluated
Site responsibility matrix attached
Warranty and post-warranty service table compared
Acceptance requirements linked to final payment

FAQ

What should hospitals check before buying a C-arm?

Check procedure mix, field of view, C-arm movement, OR access, dose tools, image storage, sterility workflow, warranty, service, and TCO.

Is flat-panel C-arm always better?

Flat-panel systems can improve image quality and dose performance, but cost, detector risk, service support, and procedure needs must justify the upgrade.

What C-arm costs are often missed?

Drapes, footswitches, printer, DICOM, batteries, wheels, brakes, cables, PPE, tube/detector replacement, and service are often missed.

What should a C-arm demo include?

The demo should include actual OR movement, positioning, pulsed fluoroscopy, dose display, image storage/export, cleaning, draping, and fault review.

What should C-arm acceptance include?

Acceptance should include movement checks, safety checks, image and dose baseline, accessories, DICOM/export test, user training, and biomedical handover.

References and Standards

Learn the full equipment overview: Main C-arm page with applications, workflow, components, site planning, maintenance, lifecycle, and FAQs.
See clinical applications and components: Use the equipment hub for background before writing procurement clauses.
Review the complete equipment lifecycle guide: Use the equipment hub to understand maintenance, failures, replacement planning, and lifecycle risk.
Medical Equipment RFQ Writing Guide: Use this for clause structure, vendor response format, deviations, and final tender wording.
Medical Equipment TCO Guide: Use this to compare purchase price with service, accessories, software, consumables, downtime, and replacement cost.
Medical Equipment Acceptance Testing Guide: Use this to convert tender requirements into commissioning and final payment checks.
Medical Equipment Warranty Review Guide: Use this to review component coverage, exclusions, labor, travel, software, and escalation terms.

Related Resources

Equipment resource centerApply this guidance to equipment-specific procurement pages.RFQ template libraryUse structured RFQ pages to request comparable vendor responses.Specification generatorGenerate a first draft specification using equipment, hospital type, and budget level.Comparison centerCompare equipment proposals using service, TCO, clinical, and procurement criteria.