MATTRESS COVER APPARATUS HAVING X-RAY CASSETTE RECEPTABLE AND METHOD

Abstract

A protective cover (1) of a main support element (2) of cushion or mattress type, on which a part at least of the body of a patient (7) to be radiographed is intended to rest, comprises at least an upper part (11) substantially flat when placed so as to cover the upper surface (21) of said main support element and lateral flanges (12), for covering in part at least the flanks (22) of the main support element (2), characterised in that it comprises: a supple internal pocket (3), extending below said upper part (11) of the cover, for containing a radiography cassette (5), said pocket comprising at least one opening (3a) for introducing a cassette, the end of the pocket forming an opening terminating on and being fixed to at least one lateral edge (12) of the cover, near the longitudinal edge (13) of said main cover part, and a secondary support element (4) of mattress or cushion type, not as thick as said main support element (2), preferably having a thickness of less than 5 cm, integral with said cover, positioned in between said pocket (3) and said upper cover part (11) and covering at least said pocket.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Other characteristics and advantages of the devices according to this disclosure will emerge from the following detailed description of an embodiment, done in reference to FIGS. 1 to 3, in which:

FIG. 1 illustrates an ensemble view, showing a protective cover 1 according to the disclosure covering a main mattress 2 with a radiography cassette 5 in the course of insertion into a pocket 3 according to the disclosure; and

FIG. 2 is a view in longitudinal section of the ensemble according to FIG. 1 with a patient 8 stretched out on a cover according to the disclosure; and

FIG. 3 is a view in transversal section according to AA of FIG. 2; and

FIG. 4 is a view in transversal section of said main and secondary support elements constituted by beads lifted in inclination.

DETAILED DESCRIPTION OF THE DRAWINGS

FIGS. 1 to 3 illustrate a protective cover 1 according to the disclosure, equipped with a pocket in the shape of a tubular sheath 3 with opposite openings 3a terminating on the two opposite lateral edges 12 and longitudinal edges 13 of the upper part 1₁ opposite the protective cover.

The two openings 3a are equipped with opening/closing slide devices 3b covered by a protective rebate 3c.

The peripheral edge of each lateral opening 3a of the pocket 3 is fixed to the cover by seams 3d with a first seam between the peripheral edge of an upper part 3₁ of the pocket 3 and a longitudinal edge 13 of the upper part 1₁ of the cover and, a second seam 3d between the peripheral edge of a lower part 3₂ of the pocket and the upper end of the lateral edge 1₂ of the cover covering the flanks 2₂ of the support element or mattress.

FIG. 3 illustrates a second slide closing device 6 which follows the peripheral contour of the lateral edge 1₂ of the cover, so that the mattress and the protective rebate 3c likewise protect this second opening/closing slide device 6.

This second opening/closing slide device 6 separates the upper part from the lateral flanges 1₂ of the cover and a lower part 1₄ of the cover.

The pocket 3 forms a sheath via which radiography cassettes 5 can be translated, from one opening to the other, when the opening/closing slide devices 3b are open.

The fabrics making up the upper part 1₁ and the lateral flanges 1₂ of the protective cover are synthetic fabrics of polyester or polyamide type coating on at least the external surface of the polyurethane polymer cover having sealing properties, inter alia.

The sheath is constituted by a polyamide textile material forming a fine fabric of 66 g/m² coating on one of its faces by a debeading fluorinated resin, and hot-calendered. This fabric exhibits resistance properties to traction and resistance of at least 45 daN according to ISO 13934-1 standard and resistance to spreading of tears according to ISO 13937-1 standard of at least 20N.

Due to its hot calendering and being covered by a layer of fluorinated resin, this cloth has increased glide properties.

A cloth of this type is marketed by the company JEANNE BLANCHIN at CHAMPAGNEUX, 73240—France under reference MELBOURNE 3380.

This type of supple and fine fabric is classically used for making sails of spinnaker type and parachute cloth.

Placed in between the pocket 3 and the upper part 1₁ of the cover on which rests the patient to be radiographed is a cushion or secondary support element 4 formed according to the same structure as the main mattress 2 protected by said cover.

The different materials used in the cover, the pocket and the secondary support element 4 are transparent to rays used in radiography, especially X-rays.

In some embodiments, a main support element 2 or main mattress 2 constituted by beads 2₁ arranged transversally and inflated by air, from 10 to 20 cm in thickness is employed.

The secondary support element 4 is likewise constituted by beads 4₁ inflated by air and arranged transversally, though smaller in diameter (specifically around 3 cm) extending substantially over the entire width of the mattress 2 and, in the longitudinal direction X, X′, over the entire length of the pocket and limited thereto.

The openings 3a of the sheath are slightly larger than the dimension of the standard large-format cassettes to be radiographed, specifically around 50 cm.

However, the pocket in some embodiments extends over a length of ½ to ⅔ of the length of the mattress in order to cover the zones of the part of the body to be radiographed able to extend from the occiput to the pelvis, irrespective of the morphology of the patient.

The secondary support element 4 is inflated prior to introduction and evacuation of the cassette by a single operator to the extent where handling the patient is much easier.

The radiography assays as conducted demonstrate a satisfactory radiographic quality devoid of any artefact and the possibility of introduction and withdrawal of the radiography cassette in the pocket by a single operator with minimal disturbance to the patient to be radiographed compatible in the case of polytraumatised patients.

In a known manner, the cells 2₁, 4₁ of the main support elements and secondary support elements 4 are connected by a network of tubes and valves 7₁ to a pressure-regulating device 7 inside the cells constituting it, if needed, according to the different zones of the or of said mattress, and the air pressure in said cells is regulated so as to maintain the homogeneity of the interface pressure between the body of the patient and the mattress.

FIG. 4 illustrates part only of the network 7₁ of valves and tubes connecting the regulating device 7 comprising a pump so as not to overload the diagram.

In some instances, the pressure in the cells of said secondary support element is substantially identical to that in the cells of said main support element located opposite said secondary support element.

Finally, as per FIG. 4, to avoid disturbing the patient 8 contacting an excess thickness of the mattress in the zone corresponding to said secondary support element, the top of the bed and the corresponding zone of the mattress are lifted and inclined at around 45°, so that the interface pressure between the body and the mattress is reduced in the zone of said secondary support element. It is thus possible to continue therapeutic regulation of the pressure inside the cells of said main and secondary support elements during radiography.

Claims

1. A protection cover (1) of a main support element (2) of cushion or mattress type, on which a part at least of the body of a patient (8) to be radiographed is intended to rest, said cover comprising at least an upper part (11) substantially flat when placed so as to cover the upper surface (21) of said main support element and of lateral flanges (12), for covering in part at least the flanks (22) of the main support element (2), characterised in that it comprises: a supple internal pocket (3), extending underneath said upper part (11) of the cover, suitable for containing a radiography cassette (5), said pocket comprising at least one opening (3a) for introducing a cassette, the end of the pocket forming an opening terminating on and being fixed to at least one lateral edge (12) of the cover, near the longitudinal edge (13) of said main cover part, anda secondary support element (4) of mattress or cushion type, not as thick as said main support element (2), integral with said cover, positioned in between said pocket (3) and said upper cover part (11) and covering at least said pocket.

2. The protection cover as claimed in claim 1, characterised in that said main support element (2) and said secondary support element (4) are each constituted by cells in the shape of transversally arranged beads (21, 41) filled with air, the cells of said secondary support element having a cross-section reduced relative to that of said main support element, said reduced cross-section having a greater dimension of less than 5 cm.

3. The protection cover as claimed in claim 2, characterised in that the cells of said main support element (2) and secondary support element (4) are filled with air and are connected to a regulating device (7) of the pressure inside said cells, as a function of the buoyancy of the patient at different zones of the body of the patient, the pressure inside the cells of said secondary support element being substantially identical to that of the cells of the zone of said main support element opposite.

4. The protection cover as claimed in claim 1, characterised in that said pocket is constituted by a fine synthetic fabric having high mechanical resistance properties to tearing and high glide coefficient.

5. The protection cover as claimed in claim 4, characterised in that said synthetic fabric is has a gram weight under 100 g/m2, is hot-calendered and, whereof at least one face corresponding to the internal face of said pocket and covered by a layer of fluorinated polymer resin, imparting glide properties.

6. The protection cover as claimed in claim 1, characterised in that at least an upper part (31) of the end of the pocket forming the opening (3a) is fixed to a longitudinal edge (13) of said upper cover part (11), and the other lower part (32) of the end of the pocket forming said opening (3a) is fixed at the top of said corresponding lateral edge (12) of the cover.

7. The protection cover as claimed in claim 1, characterised in that said pocket comprises two opposite openings (3a), said pocket thus forming a sheath passing through the cover (1) between the two opposite longitudinal edges (13) and lateral flanges (12) opposite said cover.

8. The protection cover as claimed in claim 1, characterised in that the dimension of the pocket in the longitudinal direction (X, X′) of said main support element (2) positions a cassette (5) opposite a zone of said upper part (11) of the cover on which is intended to rest a part of the body of the patient extending from the occiput to the pelvis of the patient, over a distance of ½ to ⅔ of the length of said cover from one of these ends in the longitudinal direction.

9. The protection cover as claimed in claim 1, characterised in that it covers a main support element (2) of cushion or mattress type, arranged respectively on a seat or a bed.

10. A radiography process of part at least of the body of a patient (7) by means of a radiography cassette (5), at least the part of the body of the patient (7) to be radiographed resting on a main support element of cushion or mattress type, characterised in that the a cassette is inserted into a pocket of a protection cover as claimed in claim 9.

11. The process as claimed in claim 10, characterised in that a cover comprising a tubular pocket in the shape of sheath (3) with two openings (3a) terminating in and fixed on the opposite longitudinal edges (13) and lateral flanges (12) opposite a cover is used, and a cassette is introduced via a opening, radiography is performed and said cassette is evacuated via the opposite opening.

12. The process as claimed in any one of claims 10 or 11, characterised in that the pressure inside said main support element (2) and secondary support element (4) constituted by cells in the shape of beads (21, 41) arranged transversally and filled with air is regulated, so as to homogenize the interface pressure between the body of the patient and said main and secondary support elements, in maintaining pressure inside the cells of said secondary support element substantially identical to the cells in the zone of said main support element opposite said secondary support element.