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AssigneeLes Laboratoiress Brothier
InventorsPhilippe Maingault, Christophe Pecoult
Estimating the term…
A method and system for producing an improved dressing product, useful for covering/protecting a moist wound is disclosed. The dressing product comprising fibers of a spinnable polymer forming a twisted ribbon. By virtue of this twisting, the fibers, in particular at the periphery of the ribbon, are connected to one another so as to afford better mechanical cohesion and a smoother outer appearance, without affecting the action of absorption, dilation and gel formation for extracting the biological fluid, nor the action of retention of proteins and other cellular and bacterial waste matter which would impede the phenomenon of cicatrization. The ribbon twisting equipment comprises a conical bowl (1) for driving fibers in rotation with a twisting die (3) in its narrowed downstream part (2), and a gear mechanism (4) for driving in rotation.
A method for producing a dressing product useful for covering a moist wound, comprising the steps of:
A method for producing a dressing product useful for covering a moist wound, comprising the steps of:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons: containing macromolecular…
For treating webs, e.g. for moisturising, coating, impregnating or applying powder: for mechanical treatments
Wound bandages: characterised by way of knitting or weaving
Surgery: splint, brace, or bandage: method of making bandage structure
Term ended 15 Jan 2025 (estimated)
1. Field of the Invention
The present invention generally relates to dressing products such as a bandage or other sterile covering that is put on a wound to protect it from infection or further damage. More particularly, the present invention concerns a dressing product composed of fibres of a spinnable polymer, and a method and system for producing the dressing product, useful for covering haemostatic as well as exudative wounds.
2. Description of the Related Art
FIG. 1 is a side view of the bowl for driving the equipment in rotation.
FIG. 2 is a side view of the equipment with a wheel gear.
FIG. 3 is a front view of the equipment in FIG. 2, from the downstream end.
The equipment for twisting the fibres will now be described with reference to FIGS. 1-5. As illustrated in FIG. 1, the equipment comprises a bowl 1, which drives the fibres in rotation, and which can also be referred to as a funnel, of conical shape, made of plastic or of metal, having a twisting die 3 in its narrowed downstream part 2. The whole arrangement can be referred to as a whistle. The bowl 1 can be driven in rotation by a gear mechanism 4, as shown in FIG. 2.
An annular shoulder 5 is formed in the wall 6 of the bowl 1, overall in a transverse plane perpendicular to the axis 7 of the bowl 1, in order to receive the driven pinion 8 of the gear mechanism 4. The driven pinion 8 is fixed by screws 9 which are screwed into orifices 10 in the wall 6 of the bowl 1. The driven pinion 8 meshes with a driving pinion 11, itself driven by a motor 12, so as to form a wheel gear 8, 11.
In some embodiments, in place of the wheel gear 8, 11, a drive belt is mounted around a driving pulley, integral with the shaft of the motor 12. Further, in some embodiments, a driven pulley is mounted on the bowl 1 in place of the pinion 8.