Kyphoplasty balloon catheters are often compared on price per set, but the lines that decide whether a model fits a procedure are narrower than that. For the CHANGMEI Kyphoplasty range, four numbers carry most of the decision weight: gauge (8G or 11G), overall working length, the distance between the two radiopaque markers, and maximum inflation volume. This reference maps the KB0115, KB0115S1, KB0120 and KB0210S1 balloon catheters and the KT-00-05 tool kit against those lines, then extends the same framework to the procurement layer — sterilization status, shelf life, instrument pairing, purchasing terms and regulatory clearance.

Why the Specification Sheet, Not the Price List, Decides Fit

In balloon kyphoplasty (PKP), the balloon catheter is the instrument that creates the intravertebral cavity. It is introduced through a percutaneous working channel, inflated to displace cancellous bone and partially restore vertebral height, then deflated and removed so the cavity can be filled with bone cement. That sequence means catheter geometry has to agree with the access channel, the vertebral level and the cement delivery plan before commercial terms matter at all.

For buyers at the evaluation-to-execution stage, the practical consequence is that a catheter shortlist should be built from four specification lines — gauge, length, marker span and inflation volume — and only then tested against logistics: sterilization status, shelf life, kit pairing, minimum order quantity and regulatory documentation. A model that is cheaper per unit but forces a hospital to change its access tray, or that arrives without the matching instrument set, is not a cheaper model.

The comparison set below comes from CHANGMEI Kyphoplasty, the kyphoplasty product line of Jiangsu Changmei Medtech Co., Ltd., a medical device manufacturer established in 2013 in Jiangsu, China. The company operates a 51,985 m² facility with 235 employees, including a 40-engineer R&D team, and reports an annual output of 1,000,000 kyphoplasty balloon catheters with exports to the EU, USA, Asia, South America and the Middle East.

The Comparison Set: Four Catheters Across Two Gauge Families

The four catheters in this framework are not four variations of the same item. They are two gauge families crossed with three marker-span options, and each combination answers a different clinical situation.

• KB0115 — an 8G balloon kyphoplasty catheter with a 15 mm distance between the two radiopaque markers, ≥3.65 mm channel inner diameter, 315 mm overall length and 4 cc maximum volume. It sits in the Balloon Kyphoplasty (PKP) Products category and is intended for orthopedic surgery, spine surgery, pain management and interventional pain clinics.
• KB0115S1 — the 11G counterpart of the same 15 mm marker span. It shares the 4 cc maximum volume but moves to a ≥3.10 mm channel ID and a 280 mm overall length, and is intended for orthopedic surgery scenarios.
• KB0120 — an 8G catheter with the widest marker span in the set at 20 mm, a ≥3.65 mm channel ID, 315 mm length and the largest maximum volume at 6 cc. It is intended for orthopedic surgery, spine surgery, pain management and interventional pain clinics.
• KB0210S1 — an 11G catheter with the narrowest marker span at 10 mm, ≥3.10 mm channel ID, 280 mm length and 3 cc maximum volume. It belongs to the Balloon Kyphoplasty (PKP) Products category and is intended for spine surgery, pain management and interventional pain clinics.

Two further catalogue models complete the grid rather than the shortlist: KB0210 (8G, 10 mm marker span, 4 cc) and KB0120S1 (11G, 20 mm marker span, 6 cc). Buyers who standardise on a full matrix rather than a single SKU typically hold those two as the remaining corners of the same 2 × 3 structure.

Specification Table: KB0115, KB0115S1, KB0120 and KB0210S1 Side by Side

Read as a matrix, the table shows that gauge and marker span move independently. KB0115 and KB0115S1 share an identical 15 mm marker span and 4 cc volume but differ in gauge and length; KB0120 and KB0210S1 differ in every column. That is why a buyer cannot substitute one S1 model for another on the assumption that the “S1” suffix alone defines the specification.

Reading Each Specification Line as a Buying Variable

Gauge: 8G versus 11G

Gauge determines the access channel the surgical team must already own or be willing to adopt. The 8G catheters in this set (KB0115, KB0120) run through a wider working lumen — channel ID ≥3.65 mm — and are the natural fit for hospitals still working from classic 8G kyphoplasty trays. The 11G catheters (KB0115S1, KB0210S1) use a ≥3.10 mm channel ID and a shorter 280 mm shaft, matching teams that have moved to smaller-footprint access with less paraspinal trauma and easier upper-thoracic reach.

For a distributor, gauge is also a stocking decision. Because a single order may have to serve both an established 8G hospital base and a minimally invasive 11G customer segment, gauge mix — not total volume — is the variable that most often causes an initial stock to miss demand.

Overall length: 315 mm versus 280 mm

Both values describe the same thing: the shaft reaches far enough to place the balloon in the anterior two-thirds of the vertebral body through a transpedicular or parapedicular approach. The longer 315 mm shaft belongs to the 8G models; the 11G models run at 280 mm. Where a buyer is matching a catheter to an existing cannula set, length should be verified against the cannula already in the tray rather than assumed from the gauge alone.

Radiopaque marker span: 10 mm, 15 mm, 20 mm

The distance between the two radiopaque markers is the fluoroscopic reference the operator uses to judge balloon position and the extent of the cavity being created. A 10 mm span (KB0210S1) concentrates the working length within a short segment; 15 mm (KB0115, KB0115S1) is the middle option; 20 mm (KB0120) covers the widest segment in the set. Marker span therefore links directly to the vertebral level and fracture morphology being treated, and it is the single line most often overlooked when catheters are ordered purely by gauge.

Maximum inflation volume and constrained burst pressure

Maximum inflation volume is the ceiling for cavity creation: 3 cc for KB0210S1, 4 cc for KB0115 and KB0115S1, and 6 cc for KB0120. All four models are rated at a constrained burst pressure of ≥400 PSI, meaning the balloon is tested to withstand at least that pressure while restrained within bone.

Tool Kit and Inflator Pairing: KT-00-05, KT-00-01 and the BI-20A-10

A balloon catheter is only half of a working PKP set. The instrument complement that establishes the working channel is supplied separately as a kyphoplasty tool kit, and the pressurisation source as a balloon inflator.

Both kits are supplied as sterile, single-use Vertebral Augmentation Instrument Sets, CE-marked under CE 0123 and certified to ISO 13485. Most metal parts use 06Cr19Ni10 medical-grade stainless steel, while the puncture stylet and puncture expandor cutting tips use 32Cr13Mo stainless steel. The KT-00-01 is documented as pairing with the 8G KB0210 balloon catheter; the KT-00-05 is documented as pairing with the 11G KB0210S1 catheter.

Pressurisation is handled by the Balloon Inflator BI-20A-10, a 20 cc balloon inflation pressure pump with a maximum pressure of 30 atm, supplied with a preconfigured 10 ml syringe. It is EO sterilized for single use and is CE MDR certified and NMPA China Class II registered. Because the inflator is a shared component across gauges, it does not need to be duplicated when a buyer splits stock between 8G and 11G catheters — but the tool kits do.

Sterilization, Single-Use Status and Shelf Life

All four catheters are constructed from medical-grade thermoplastic polyurethane (TPU) balloon material mounted on a polyurethane shaft, with radiopaque markers and a stainless-steel stylet; handle components use polycarbonate. Every unit is ethylene oxide (EO) sterilized and designated single-use.

• Re-use and re-sterilization are prohibited; the device must be used immediately once the package is opened.
• Shelf life is three years from manufacture under the stated storage conditions.
• The official instructions for use (IFU) govern handling, and the IFU — not the catalogue page — is the definitive document for use conditions and contraindications.

For procurement files, the single-use and EO designations are also inventory variables: a three-year shelf life constrains how much stock a distributor can rationally hold per SKU, which argues for spreading an initial order across gauges and marker spans rather than concentrating it in one model.

Regulatory Clearance Checks Before the Purchase Order

Regulatory documents should be verified per SKU and per market, because clearance scope often differs between a catheter, a tool kit and an inflator.

• Tool kits: KT-00-05 and KT-00-01 are CE-marked under CE 0123 and certified to ISO 13485.
• Quality system: EN ISO 13485:2016 certificate Q5 088875 0008 Rev. 05, issued by TÜV SÜD Product Service GmbH, covering design, development, production and distribution of disposable sterile medical devices, with a stated scope across the EU, Asia, Middle East and South America.
• EU market: EU Quality Assurance Certificate (MDR) G21 088875 0011 Rev. 00 covering Class I sterile medical devices under Regulation (EU) 2017/745 Annex XI Part A, and EU Quality Management System Certificate (MDR) G100888750012 Rev. 01 covering Class IIa and Class IIb devices under Annex IX Chapters I and III.
• US market: FDA 510(k) premarket notification K223709 covering the kyphoplasty balloon catheter, and FDA Establishment Registration & Device Listing 3016789487 covering the balloon inflator and kyphoplasty tool kits.
• China market: NMPA China Class II registration for the balloon inflator, alongside the manufacturer’s China registration portfolio.

Procurement Execution: MOQ, Lead Time, Terms and Acceptance

Two terms deserve attention during the evaluation stage. First, full T/T payment before shipping is a working-capital pattern that suits established distributors with predictable resale but places the cash-flow burden on the buyer; that should be priced into the landed-cost comparison rather than treated as a neutral term. Second, OEM and ODM structures are available for private-label and custom-designed kyphoplasty systems, with an authorised regional dealer model available for distribution partners.

Customisation is the point at which the four catheters stop being a fixed list. Because balloon diameter and length, cannula size and length, handle colour and logo, packaging and labelling language are all within the customisation scope, a buyer who needs a marker span or shaft length outside the standard matrix should raise it during specification review — accepting that OEM/ODM lead time runs within the 30–45 day window rather than at stock turnaround.

Boundaries and Trade-Offs Buyers Should Not Skip

• Cavity volume is not uniform. KB0210S1 maxes out at 3 cc, the lowest in the set. Where a larger contained cavity is the clinical priority, the 8G KB0120 with 6 cc is the more appropriate model, and the 11G choice should be justified by access rather than volume.
• Narrower channel means a different cement workflow. The 11G catheters have a ≥3.10 mm channel ID against ≥3.65 mm on the 8G models. That difference does not change the indication, but it does affect how teams plan cement delivery through the working channel, and it is a reason 8G remains the more forgiving option for operators trained on classic PKP trays.
• Burst pressure is a ceiling, not a target. The ≥400 PSI constrained rating across all four models is a safety margin under constraint and should not be used as an inflation set-point.
• Payment and lead time are part of total cost. Full prepayment with a 30–45 day production window means capital is committed before goods ship, which matters more in a three-year-shelf-life product than in categories with faster turnover.
• Patient selection limits the device, not the reverse. The catheter is not applicable for patients with a damaged vertebral posterior edge, nerve injury, infection at the operative site, or uncorrectable coagulopathy. Broader contraindications in the reference material include burst fractures with posterior cortical disruption, retropulsed bone fragments in the spinal canal, asymptomatic fractures, active systemic or local infection, and allergy to implant components such as PMMA or contrast medium. All selection criteria are governed by the IFU.

Market Context for the Comparison

Category-level numbers give the comparison its commercial frame. The global kyphoplasty market was valued at USD 764.13 million in 2025 and is projected to reach USD 1,342.29 million by 2034, according to published market research. North America accounted for a revenue share of between 42.5% and 50.0% in 2025, making it the largest single regional market in the same research set.

Reimbursement is the second frame. The 2025 Medicare ambulatory surgical centre rate for kyphoplasty (CPT 22513, 22514) was set at approximately USD 3,510.84, a 3.5% increase over the prior year — relevant to the ASC segment that constitutes part of the buyer base for single-use PKP sets.

On the supply side, the manufacturer states that its kyphoplasty balloon catheters account for approximately 80% of the Chinese domestic market and that it supplies member companies of Stryker and Medtronic as a qualified vendor, with contract manufacturing partners in Europe. These are company-reported figures and are presented here as such; they are useful for supplier-scale context but should be treated as self-reported rather than independently audited market data.

Future Outlook

Two shifts are likely to reshape this comparison set over the next planning cycle. The first is gauge migration. As minimally invasive PKP access continues to be adopted in outpatient and ASC settings, demand shifts toward 11G configurations — but that shift is uneven by market, and the 8G tray remains the installed base in many regions. Suppliers who run both gauges on the same production and pressure-test platform avoid forcing buyers into a two-supplier risk profile, which is a structural advantage because it keeps one quality record and one audit trail across the matrix.

The second is documentation depth. With EU MDR now the operative framework and China MDR registration alongside it, the bottleneck for buyers is no longer device availability but the completeness of technical files: IFU, EO sterilization validation, UDI, and free-sale certificates for local import registration. As the kyphoplasty category grows toward the projected 2034 figure, buyers should expect regulatory documentation review — not specification negotiation — to become the longer half of the sourcing cycle.

FAQ

Product reference documentation for the 8G and 11G CHANGMEI Kyphoplasty System, including balloon catheter, tool kit and balloon inflator specifications, is available in the manufacturer’s published catalogue: Kyphoplasty System Products (8G & 11G) — CE and FDA.