DRESSING FOR PUNCTURE OR INFUSION SITE, PARTICULARLY FOR HEMODIALYSIS

Abstract

Dressing (10) for puncture or infusion point, comprising a micro-perforated polymer material sheet, a first face of this sheet being covered with a pressure-sensitive adhesive, the opposite face of this sheet being non-adhesive, characterized in that it comprises a strip of material, fixed to the non-adhesive face of the polymer material sheet, this strip of material being compressible and impermeable.

Description

[0074] The perforation of the adhesive strip 4 is advantageously achieved by implementing a process comprising the following steps: - application of glue to the side of the film to be made adhesive, for example a polyethylene (PE) film, in particular a low density PE film 60 microns thick, the adhesive being acrylic-based, over a thickness of approximately 30 microns; - application of a liner covering the glued surface; perforation of the film, for example by hot needle punching, following a square or diamond mesh pattern, in one or two passes, the density of holes being advantageously on the order of 110 per square centimeter; - removal of the protective film and application of a strip peelable.

[0075] Advantageously, the perforations intended for sieving are micro-perforations obtained without removal of material, for example by needle punching.

[0076] Advantageously, the adhesive strip 4 is elastic and the The perforation is performed while applying tension to the adhesive strip. so that the micropores are essentially closed after the tension of the strip is released. When applying the dressing, manually stretching the adhesive strip 4 causes these to open micropores.

[0077] The dressing comprises a frame 13 made of flexible material. The frame may be square, rectangular, or oval in shape. Advantageously, the frame 13 is made of foam, for example, polyethylene foam. In other embodiments, the frame 13 is made of cellulose-based non-woven material or is made of polyethylene vinyl acetate.

[0078] Before its withdrawal, the needle occupies a space between the skin and the adhesive strip 4, this space potentially creating a short pathway for blood exiting the puncture site. The present inventor has found that to eliminate this risk, it is advantageous to apply manual pressure to the frame 13, above the needle, during its withdrawal.

[0079] Advantageously, the frame 13 and the adhesive strip 4 do not contain latex, avoiding allergic reactions to this compound.

[0080] By way of example, the dressing 10, when viewed in plan view, has a substantially rectangular outline with rounded edges, a length of approximately 40 mm and a width of approximately 35 mm. The frame 13 defines a central window 14 that is substantially square, with sides of approximately 20 mm. The thickness of the frame 13 is on the order of 1.5 to 2 mm.

[0081] The dressing 10 which has just been described has many advantages.

[0082] The present inventor has observed that the risks of accidents due to exposure to blood are greatly reduced when disconnecting the venous and arterial lines at the end of a dialysis session.

[0083] Indeed, in most patients, only a drop of blood appears and beads at the needle insertion point. This very small amount of blood is absorbed by a gauze pad placed over the dressing, with the compression time lasting only a few tens of seconds. In a few rare patients, for example in cases of AVF stenosis or cardiac arrhythmia, blood may flow in a slight spurt, but this flow is interrupted by the presence of the micro-perforated adhesive strip. The dressing allows for visual monitoring of any prolonged bleeding, without the risk of spatter.

[0084] The present inventor has observed that compression times at the end of dialysis sessions were greatly reduced.

[0085] The frame 13 can also contribute to protecting the puncture or infusion site from pressure and shock, maintaining a space between the skin and the patient's clothing. If necessary, a compress can be held in place within the window 14 defined by the frame 13.

Claims

DEMANDS 1. Dressing (10) for puncture or infusion point, comprising a micro-perforated polymer material sheet, a first face of this sheet being covered with a pressure-sensitive adhesive, the opposite face of this sheet being non-adhesive, characterized in that it comprises a strip of material, fixed to the non-adhesive face of the polymer material sheet, this strip of material being compressible and impermeable, the compressible and impermeable strip of material being made of expanded polymer, in particular polyethylene foam.

2. Dressing (10) for puncture or infusion point according to claim 1, characterized in that the strip of compressible and impermeable material forms a frame (13).

3. Dressing (10) for puncture or infusion point according to any one of claims 1 or 2, characterized in that the micro-perforated polymer material sheet is transparent, translucent or semi-transparent.

4. Dressing (10) for puncture or infusion point according to claim 3, characterized in that the micro-perforated polymer material sheet is made of polyethylene provided with an acrylic adhesive.

5. Dressing (10) for puncture or infusion point according to any one of the preceding claims, characterized in that the micro-perforated polymer material sheet is provided with perforations of a diameter less than 0.5 mm.

6. Dressing (10) for puncture or infusion point according to claim 5, characterized in that the density of perforations in the micro-perforated polymer material sheet is on the order of one hundred per square centimeter.

7. Infusion, drainage, or catheterization kit, comprising a dressing (10) as presented in any of the preceding claims, and a needle or cannula or catheter or drain.