Surgery – Body protecting or restraining devices for patients or infants – Drapes
Patent
1997-09-24
1998-07-14
Brown, Michael A.
Surgery
Body protecting or restraining devices for patients or infants
Drapes
128853, A61B 1900
Patent
active
057788901
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a surgical drape having a self-adhesive edge or border and comprising a liquid-impervious layer and a layer of absorbent material fastened thereto.
In many surgical operations, the surgical or wound area is screened with the aid of a plurality of surgical drapes, dressing towels or the like which are placed on the patient around the surgical area and there fastened to the patient's skin along those edges of the drapes that face towards the surgical area. In order to facilitate application of the surgical drapes around the surgical area, the drapes are often provided with an adhesive coating on the underside of one edge of the drape. One problem with known surgical drapes of the kind defined in the introduction where the absorbent material is comprised of nonwoven material laminated on a plastic layer resides in the danger of the adhesive bond loosening at mutually overlapping edge parts of adjacent drapes. Another problem is that the properties of said edges are fully dependent on the properties of the material from which the surgical drape is comprised and do not therefore always have properties that are optimal for the application in question. The provision of an adhesive coating along the edges or borders of such surgical drapes also complicates their manufacture.
An object of the present invention is to avoid these problems.
This object is achieved in accordance with the invention with a surgical drape of the aforedefined kind which is characterized in that at least one edge of the drape includes a separate edge-piece which is attached to the drape itself and which includes an adhesive coating on that side which in use lies proximal to a patient's body. Because thee edge-piece comprises a part which is separate from the drape in general, the material from which the edge-piece is made can be chosen in full accord with the properties desired of said edge-piece while, at the same time, enabling the surgical drape in general, ie the drape itself, to be optimized independently of said edge-part. Furthermore, the risk of adhesive bonds between overlapping parts of the edge-pieces of mutually adjacent surgical drapes loosening while in use can be eliminated by suitable selection of edge-piece material and adhesive coating. Furthermore, the process of applying an adhesive coating to the drape edge-piece is separate from the manufacture of the drape itself, which simplifies the manufacture of the drape in comparison with the manufacture of known drapes of the aforedefined kind and renders such manufacture less expensive.
In one preferred embodiment, the separate edge-piece extends along the full length of the drape edge with which it is to coact, and the separate edge-piece is produced from a plastic material. The edge-piece is also stiffer in its transverse direction than in its longitudinal direction and is fastened to the surgical drape itself on that side thereof which in use lies distal from a patient. The edge-pieces are preferably glued or welded to the surgical drape.
In one variant, the edge-piece is attached to the surgical drape on that side of the drape which in use lies proximal to a patient.
In another variant, the separate edge-piece is manufactured from vapour permeable material.
By surgical drape is meant here drapes of all sizes and thus also includes dressing towels, abdominal sheets, plain sheets, slit sheets, etc..
The invention will now be described with reference to the accompanying drawings, in which
FIG. 1 is a schematic perspective view of a patient lying on an operating table with the surgical area, or wound area, screened with the aid of four surgical drapes constructed in accordance with one embodiment of the invention; and
FIG. 2 is a sectional view taken transversely to the longitudinal direction of one edge or border of a surgical drape in FIG. 1.
FIG. 1 shows a patient lying on an operating table T where a rectangular surgical area O has been screened with the aid of four surgical drapes S1-S4. As shown in FIG. 2, each of these drapes S1-S4 is co
REFERENCES:
patent: 3263680 (1966-08-01), Morgan
patent: 3561439 (1971-02-01), Bayer
patent: 4316455 (1982-02-01), Stoneback
patent: 4316456 (1982-02-01), Stoneback
patent: 5546960 (1996-08-01), Billgren
Falck Ewa Kolby
Lofgren Kristina
Netsner Bengt
Brown Michael A.
Molnlycke AB
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