Standard suture cutter Fibapic

suture cutting machine, gripping mechanism.

specifications

Standard features of all machines

General Concept

The heat tipping machine pulls the suture thread to a specified length and then heats the tipping area of the suture. Cooling down after heat treatment stiffens the end.The machine cuts in the middle of the stiffened portion, creating two heat-tipped ends. This machine is specially developed for multifilament sutures, i.e braided sutures. With a a supplemental device, it can also treat monofilaments. The best of all: No glue is used for stiffening.

Cristal-Clear Cut

cutting suture with 4 edges
The geometry of cutting-blade

The super-sharp knifes () are made out of carbide-metal, which is much harder than hardend steel. This guarantees a clean cut and an extreme long life expectancy. We guarantee 1 million cuts of stiffened PGA suture per blade set.

cutting suture with 4 edges
The geometry of cutting

Through the 4 edges of the cutting blade (), the suture end keeps its round shape and does not flatten (no crunching) during cutting. Furthermore, the hardened filament stays in place, such that it can afterwards perfectly be inserted into the needle hole without fraying.

Cut with an angle

inserting suture into a drilled needle
easy inserting of suture thanks to angled cut

Angled cutting facilitates inserting () the suture into a drilled needle. Through the sharp point caused by angled cutting, putting the suture into the hole is much easier.

infrared heat stiffening

 heating zone suture
Schematic description of the heating zone

The surface fibers are heated up through the homogeneous infra-red heat source as shown with arrows around the suture in . For compliance reasons, the heat source is not touching the product. The suture is streched under a controlled tension during stiffening. Certain suture-types like Ultra-High-Density-Polyester (UHDPE) can be shrunk in diameter up to about 10%.

heat treated section of suture
The different stiffening zones of the heat treated section

The finished stiffening section comprises a small transition area of about 1-2mm, as shown in . In this zone the stiffening changes continously from soft to stiffened. After finishing stiffening, the stiffened area is cut in the middle

materials to be heat stiffenable

PET
Poly-ethylene (Ashaway)
PE
braided polyester (Pearsalls Limited)
PLA
poly-lactide acid
PGA
poly-glycolic-acid (Mitsui, Samyang, Gunze)
PP
poly-propylene
UHDPE
Ultra High Density Polyethelene
PA
Nylon
Materials prooven to work with the suture cutter Fibapic

shows the polymer-materials which were tested and valideted by our existing customers. Materials of natural origin need to be tested by the cutomer (like silk, linen, etc). If they are treated with silicon, limited stiffening might be possible.

We build also machines to treat teflon suture (PTFE). However this is a specialized machine, a standard machine cannot treat teflon.

≥USP 3
4 sutures/minute, 240 sutures/hour
USP 2..3-0
8 sutures/minute, 480 sutures/hour
USP 4-0 ..6-0
6 units/minute 360 sutures/hour
≤USP 7-0
only with the micro-sutures option (see options)
Thickness of material suitable for the machine and the effect on speed

For thin sutures is the micro-suture option necessary. The necesity of this module arrises at about USP 7-0 as can be see in . Thick sutures reduce the speed of the machine through the huge volume which needs to be heated. The heat needs to penetrate through the surface into the core of the suture. This takes more time for thicker sutures.

Flat tape heat stiffening

PET tape stiffend and cut
PET-tape: 0.5mm x 4mm stiffend and cut

NEW!: The standard machine can treat flat tapes without any modification of the machine. Just load the software parameter set and start stiffening and cutting. shows green PET-tape.

Tracability

part of tracability file
Extract of tracing file shown in Excel

Each time when the operator opens the front door, the whole parameter-set is automaticly written into an Excel-readable data file, . The data is on the USB-memory-stick and can be processed on a standard computer or fed into the SAP-System.

Suture collection tray

two trays for suture laydown
Each machine is equipped with two trays: good collector and reject bin

Each machine is equipped with two disitinctive trays. One for the good sutures () as well as the rejected sutures (if there are knots in the suture or the first cut). Each suture is put in the correct tray according to the automated software quality control.

two trays for suture laydown
high volume suture tray.

Depending on the requirements of the client the machine is delived with the best suited suture cellection system. The high volume tray is good for suture with little memory effect, such as UHDWPE, (). It also is perfect if the sutures are rather thick. (USP 0 and bigger).

mid sized suture collector
mid-sized suture tray.

For mid sized sutures (approx. USP3-0) we propose the mid-sized suture tray. It collects nicely also thinner sutures and they can be taken out as a bundle. Maximum amount per batch approx. 250 sutures of USP3-0.

The machine is delivered with one of these two trays. Retrofitting with another tray is always possible and can be exectuted by a machine-operator (no technician needed).

Tracability

part of tracability file
Extract of tracing file shown in Excel

Each time when the operator opens the front door, the whole parameter-set is automaticly written into an Excel-readable data file, . The data is on the USB-memory-stick and can be processed on a standard computer or fed into the SAP-System.

Quick suture setup

Extremely quick setup of suture within 25 seconds.

Various bobine (spool) sizes

Using spacers the unrolling unit can be adapted for a wide range of small and large spools.