Patents Assigned to Rotecno AG
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Patent number: 5883022Abstract: An absorbent fabric material of synthetic endless fibers, in particular for use in clinical areas and also clean room areas and also in company and public washrooms, in which, in order to simultaneously achieve absorbent high absorbency and handling acceptance the fiber of the fabric material is texturizable and the woven material has an open woven structure in which longer non bound in thread sections (3, 6) alternate with firmly bound in thread sections (4, 5 or 7, 8 respectively) which thereby generate capillary-like interstitial spaces between the fibers.Type: GrantFiled: April 12, 1996Date of Patent: March 16, 1999Assignee: Rotecno AGInventor: Hugo Elsener
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Patent number: 5860420Abstract: A two-part surgical draping system including a disposable drape (1) for adhesion to an operation site, and one or more reusable drapes (6) placed over the disposable drape (1). The disposable drape (1) includes a window (2), an upper absorbent layer (5) and a lower impermeable layer, first adhesive means (3) for adhering the lower impermeable layer to the patient, and non-adhesive preferably oppositely disposed margins (7) which serve to facilitate handling of the disposable drape (1). For attachment of the one or more reusable drapes (6) to the disposable drape (1), either the upper or the lower surface of the disposable drape is provided with second adhesive means (4) which is adherable to the lower or upper side of the reusable drape respectively. After attachment, the one or more reusable drapes (6) leave an access opening to the operation site. Moreover, the adhesive means (3,4) are preferentially protected prior to use by respective removable coverings (3',4').Type: GrantFiled: April 10, 1996Date of Patent: January 19, 1999Assignee: Rotecno AGInventors: Guenther Wiedner, John A. Duncan, Suresh R. Patel
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Patent number: 5538012Abstract: A two-part surgical draping system comprising a disposable drape (1) for adhesion to an operation site, and one or more reusable drapes (6) placed over the disposable drape (1). The disposable drape (1) comprises a window (2), an upper absorbent layer (5) and a lower impermeable layer, first adhesive means (3) for adhering the lower impermeable layer to the patient, and non-adhesive preferably oppositely disposed margins (7) which serve to facilitate handling of the disposable drape (1). For attachment of the one or more reusable drapes (6) to the disposable drape (1), either the upper or the lower surface of the disposable drape is provided with second adhesive means (4) which is adherable to the lower or upper side of the reusable drape respectively. After attachment, the one or more reusable drapes (6) leave an access opening to the operation site. Moreover, the adhesive means (3,4) are preferentially protected prior to use by respective removable coverings (3',4').Type: GrantFiled: March 3, 1994Date of Patent: July 23, 1996Assignee: Rotecno AGInventors: Guenther Wiedner, John A. Duncan, Suresh R. Patel
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Patent number: 5461724Abstract: An article of clothing for the medical or chemical field for protection against liquids and/or micro-organisms comprises at least three layers. The outer layer (1) is formed of a hydrophobic fabric which forms a liquid barrier and a micro-organism barrier. The inner layer (22) comprises at least one carrier material (24) having a net-like, apertured or open mesh structure secured to said outer layer at a non-critical position at which the danger of passage of liquids and/or micro-organisms through the outer layer is low. At least one membrane (26) is secured to the carrier material (24) at the aforementioned critical position at which the danger exists of the passage of liquid and/or micro-organisms through the outer layer.Type: GrantFiled: March 11, 1993Date of Patent: October 31, 1995Assignee: Rotecno AGInventors: Guenther Wiedner, John A. Duncan, Suresh R. Patel
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Patent number: 5335372Abstract: An article of clothing for protection against liquids and/or micro-organisms. The article includes a portion or portions each of which includes at least three layers, an inner, outer and intermediate layer, for example. The outer layer is formed of a tightly woven hydrophobic fabric which forms a liquid barrier and a micro-organism barrier. The inner layer also is formed of a material which likewise forms a liquid barrier and a micro-organism barrier and also is preferably hydrophobic. The intermediate layer separates the outer layer and the inner layer in a region of a portion of the article and prevents direct contact between the inner and outer layers in that region.Type: GrantFiled: April 7, 1992Date of Patent: August 9, 1994Assignee: Rotecno AGInventors: Guenther Wiedner, John A. Duncan, Suresh R. Patel
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Patent number: 5203350Abstract: A medical surgical cover sheet comprises a hydrophobic fabric (11) and a hydrophilic fabric or knitted structure (16) arranged thereon. A pocket can be formed between the hydrophilic and hydrophobic fabrics and can receive an absorbent material. Provision is made for stiffening the edge adjacent the surgical wound and for adhesively connecting the cover sheet to the patient's skin adjacent the site of the operation.Type: GrantFiled: September 24, 1991Date of Patent: April 20, 1993Assignee: Rotecno AGInventors: John A. Duncan, Suresh R. Patel, Gunter Wiedner
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Patent number: 5078154Abstract: An operating theatre patient drape system which uses a combination of hydrophilic towels and hydrophobic drape sheets to provide operating theatre linen which has a low percentage of bacteria transferred across the fabric.Type: GrantFiled: April 9, 1990Date of Patent: January 7, 1992Assignee: Rotecno AGInventors: Suresh C. R. Patel, John A. Duncan
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Patent number: D373893Type: GrantFiled: February 12, 1993Date of Patent: September 24, 1996Assignee: Rotecno AGInventors: Sureshchandra R. Patel, John A. Duncan