SERAMON® CHORDAE LOOP
Mitral valve repair.
Sternotomy, mini-thoracotomy, endoscopy or robotics:
for every team.
The neochord that keeps you from losing precious time.
The four loops arrive made and tied. In the OR, you measure, choose and implant.
Standardised.
Predictable.
Four neochords of equal length on a single pledget; length and knots checked during manufacture. The same length, from one procedure to the next.
Precise, down to the needle.
Two HR-17 needles: 17 mm half circle, non-cutting round body, 300-series surgical steel. They anchor the pledget to the papillary muscle. Eleven loop lengths, from 10 to 30 mm.
One single material.
Solid, non-absorbable PTFE. With the SERAMON fixation suture, loop and fixation are the same PTFE, in the same gauge.
SERAMON® CHORDAE LOOP
Mitral valve repair.
Sternotomy. Mini-thoracotomy. Endoscopy. Robotics.
The product
Every millimetre
has a reason.
A finished implant, ready to place: four loops on one pledget, two HR-17 needles.
The pledget
Oval, hand-finished against fraying.
Pure PTFE felt, 6 × 3 × 2 mm. One single anchor on the papillary muscle for four loops.
The knots
Embedded in the felt.
Nothing protrudes on the ventricular side. Loop length and knot strength checked during manufacture.
- PTFE, USP 3/0solid, non-expanded, undyed
- Oval pledgetpure PTFE felt, 6 × 3 × 2 mm
- 2 HR-17 needleshalf circle, round body, 17 mm
- Suture 2 × 45 cmsterile, single use
The best way
to form an opinion:
try them.
We make loops available to your team for an evaluation in the OR, under an agreement with your hospital pharmacy, and we come to present them.
Every surgical approach
With or without a robot.
The loop arrives ready to implant, whatever the equipment of your OR.
Sternotomy
One step less when several neochords are needed.
Mini‑thoracotomy
No loop to make on the back table, no length to adjust with a knot pushed at a distance.
Endoscopy
One technical step less, where every move counts.
Robotics
Length set by design: no knot to slide to adjust the height. Only the fixation to the leaflet remains to be tied.
Premeasured loop technique described for conventional as well as minimally invasive surgery (von Oppell and Mohr, Ann Thorac Surg 2000;70:2166-8, ePTFE loops made by the team).
The material
Solid PTFE.
A different material from ePTFE.
The neochords you implant are most often made of expanded PTFE (ePTFE), a microporous material1. SERAMON is a solid, non-expanded PTFE monofilament: same polymer, different structure. What is known about one does not carry over to the other.
Solid PTFE monofilament, non-expanded, undyed
Expanded, microporous PTFE
USP 3/0
Depends on the suture chosen
SERAMON suture, same PTFE, same gauge (MEO20441C)
Depends on the team
In the body.
Non-absorbable and physiologically inert, PTFE is slowly encapsulated by connective tissue2.
1. Pawale A, McCarthy PM. JTCVS Techniques 2020, doi 10.1016/j.xjtc.2019.11.011. 2. SERAMON® instructions for use; Serag-Wiessner leaflet 851145. Descriptive comparison of the materials, with no claim of superiority: no study compares solid PTFE and ePTFE used as neochords in patients.
References
Eleven lengths.
One configuration.
Loop length
MECL18AA3 implants per boxLoop drawn to scale, pledget fixed. The length is chosen on the arrested heart, from the distance between the papillary muscle and the free edge of the leaflet.
| Reference | Loop length | Implants per box | Availability |
|---|---|---|---|
MECL10AA | 10 mm | 3 | Being restocked |
MECL12AA | 12 mm | 3 | In stock |
MECL14AA | 14 mm | 3 | In stock |
MECL16AA | 16 mm | 3 | In stock |
MECL18AA | 18 mm | 3 | In stock |
MECL20AA | 20 mm | 3 | In stock |
MECL22AA | 22 mm | 3 | In stock |
MECL24AA | 24 mm | 3 | In stock |
MECL26AA | 26 mm | 3 | In stock |
MECL28AA | 28 mm | 3 | In stock |
MECL30A | 30 mm | 6 | In stock |
The configuration, for every reference
- Four loops of equal length, from one continuous PTFE USP 3/0 suture
- Knots embedded in an oval pure PTFE pledget, 6 × 3 × 2 mm
- Two HR-17 needles: half circle, round body, 17 mm
- Armed suture 2 × 45 cm
- Sterile, single use
The fixation suture
MEO20441C, separate reference: SERAMON® USP 3/0, HR-17 needle, 90 cm. In stock
Reading the reference: MECL, loop length in mm, A for HR-17 needles; the second A means a box of 3. Serag-Wiessner leaflet 851145.
Publications
What teams publish.
of cross-clamp time with premeasured loops (100 vs 121 min), with comparable 10-year event-free survival. Innsbruck, 1,186 minimally invasive repairs; loop brand not specified in the abstract3.
of follow-up of Barlow patients operated on through minimally invasive surgery, most of them with SERAMON loops. Innsbruck, 246 patients4.
Barlow patients operated on totally endoscopically, with SERAMON loops combined with other chordae depending on the patient. Basel, retrospective series5.
3. Nägele et al. Heart 2026, doi 10.1136/heartjnl-2026-327812. 4. Pölzl et al. Eur J Cardiothorac Surg 2024;65(6):ezae213. 5. Koch et al. J Clin Med 2025;14(3):1005. Results of individual teams, which are not a promise of the product.
Scientific news
The latest publications on the mitral valve.
Every week, a selection of recent scientific articles summarised for cardiac surgery teams.
They trust us
Institutions ordering SERAMON® CHORDAE LOOP from Delynov.
Logistics in France
The stock is in France.
Delynov supplies healthcare institutions directly, with no import delay.
Live availability
Each reference shows its status, in stock or being restocked.
Fast dispatch
Most often the same day or the day after the order6.
A team in France
Orders, traceability, vigilance: one contact in Épinal, on +33 3 72 54 02 57.
6. Delynov measurement on SERAMON® CHORDAE LOOP shipments, May 2025 to September 2026: time between order and dispatch.
Contact
Let's talk about your
next repair.
Delynov, 31 rue Boulay de la Meurthe, 88000 Épinal, France
We call you back
Your first name and number. The Delynov cardiac team will call you back.
Monday to Friday. Your number is used only for this call.
Area reserved for healthcare professionals
Class III implantable medical devices
The information on this page concerns medical devices. It is intended for healthcare professionals and hospital departments (surgery, operating theatre, pharmacy, purchasing). Read the instructions for use carefully before any use.