Operation table cover and method of producing the same
AssigneeGFM Maschinenbau GmbH
InventorHerbert Gawarecki
Life of this patent
Estimating the term…
Abstract
An operation table cover is composed of a foil hose of thermoplastic material with a closed bottom region and an open head region provided with a circumferential reversed rim, with side edges closed by welding seams. The operation table cover is formed so that despite its substantially refuse-free manufacture, it can be fitted over the supporting surface of an operation table with a simple handling. For this purposes the side edges in the vicinity of the bottom region and directly under the reversed rim are provided with inwardly directed offset regions, and the reversed rim has the same width as the central region of the foil hose located between the offset regions.
Claims17
An operation table cover, comprising a foil hose of a thermoplastic material having a closed bottom region, an open head region provided with a circumferential reversed rim, and side edges connected with one another by welding seams, said side edges in the vicinity of said bottom region and directly under said reversed rim being provided with inwardly directed offset regions which form a central region therebetween, said reversed rim having a width corresponding to a width of said central region located between said offset regions.
A method for producing an operation table cover of a foil hose composed of thermoplastic material with a closed longitudinal edge in a bottom region and an open longitudinal edge in a head region, comprising the steps of drawing a foil hose in a transporting longitudinal direction by drawing means;
- providing welding seams and recesses extending transversely to the transporting direction;
- forming a reversed rim in the head region after a longitudinal folding in a central region and two longitudinal folds at opposite sides;
- connecting side edges of said reversed rim by welding seams;
- subjecting the foil hose to a separating welding for forming offset regions at side edges of the operation table cover under the reversed rim and in the vicinity of the bottom region;
- providing the foil hose in the central region of the side edges between the offset regions with a perforation welding seam extending transversely to the longitudinal transporting direction and closing both sides by welding;
- providing the reversed rim before separation of individual operation table covers at its both side edges with perforation welding seams and closing both sides by welding.
Dependencies are inferred from the claim text.