The Paclitaxel-eluting balloon “Luminor 14m” is a coaxial catheter (OTW, over-the-wire) designed for percutaneous transluminal angioplasties of small peripheral arteries.
The guidewire runs into the inner lumen while the outer lumen is intended for contrast medium flow. The maximum diameter of the guide wire must not exceed 0.36 mm = 0.014 inches.
On the catheter’s distal part, just before the tip, there is the balloon (inflatable segment) that will dilate the artery upon inflating by means of infusion of contrast fluid inside it. The connector is Y-shaped and it has two entry ports:
The balloon is coated with a homogeneous mixture of Paclitaxel, a derivative of Taxol, and a physiologically innocuous matrix, the excipient. The drug’s dose is 3 µg/mm2 of balloon surface and it is intended to avoid cellular proliferation, consequently decreasing re-intervention rate.
The drug is released from the balloon by means of a rapid inflation so that a high dose is released in a very short period of time. In order to assure a sufficient dosage of Paclitaxel onto the arterial wall, inflation process must last from 30 seconds to 1 minute. Dilation of the lesion can be optimized by using longer inflation times at operator’s discretion.
The balloon is designed to reach different diameters at different pressures, as predicted by the compliance curve included on the primary packaging.
Two radiopaque markers are located at each end of the balloon in order to mark its length and help the user to see the catheter while navigating inside the patient.
See IFU for further information. Available to download.
Dilatation of stenosis in femoral, popliteal and infra-popliteal arteries, with a nominal diameter from 1.5 mm to 4.0 mm and lengths from 40 mm up to 200 mm.
Paclitaxel-eluting balloons have shown antiproliferative efficacy in the treatment and prevention of restenosis. Nevertheless, not all available devices are equally effective, which makes it interesting to compare results in a preclinical swine model (overexpansion 1.2 to 1.0). In this model, iVascular’s luminor 14m DEB significantly reduced in-stent restenosis compared with the control balloons. Study published in the Spanish Journal of Cardiology (Rev Esp Cardiol. 2014;67:456-62 – Vol. 67 Num.06) and available for download on website.
LUMINOR Registry: An observational, prospective and multicentre study with single-arm treatment for native stenotic or occlusive lesions or in-stent stenosis of the femoro-poplietal (FP) and below the knee (BTK) vessels. The objective is to evaluate the performance of luminor drug-eluting balloons in terms of primary patency and freedom of serious adverse events. A maximum of 250 Rutherford 2-5 cases will be recruited following an intention to treat basis.
Since Q3 2014 until Q2 2016, 215 cases with 252 lesions (121 CTO and 131 stenosis) have been included and monitored. Those were split as 154 FP and 86 BTK vessels treated. 12 cases combined both segments.
In the BTK subgroup the baseline demographics and lesion characteristics shown the ischemic status severity of patients. It is important to emphasize that 93% of patients were classified as Rutherford 4 or 5. Technical success was achieved in 97,4% of the cases. Bailout stenting was necessary in 3 lesions (2,6%).
30-day-mortality was 7,1%. At 1 year, primary patency was 88,3%, freedom from TLR 94,8%, freedom from major amputation 85,0% and survival 86,0%.