Abstract: A method of protecting an insertion site permitting passage of a transcutaneous medical device into a patient. The method includes grasping a dressing device, positioning the dressing device over the insertion site, and adhering the dressing device to the patient over the insertion site. The dressing device may include a moisture vapor permeable backing, a polyurethane foam matrix, and an adhesive. The polyurethane foam matrix may be adhered to a first side of the moisture vapor permeable backing, and the adhesive may cover a second side of the moisture vapor permeable backing opposite of the first side. The polyurethane foam matrix can include a polyanhydroglucuronic acid or salt thereof in an amount to achieve a haemostatic effect, and chlorhexidine di-gluconate in an amount of 9% to 16% (w/w) to achieve an antimicrobial effect without adversely affecting wound healing.

Abstract: A wound dressing device for use with a transcutaneous medical device such as a cannula or a catheter comprises a polyurethane matrix which may be covered with a film backing. Chlorhexidine di- gluconate and a polyanhydroglucuronic salt are contained in the polymer matrix. The wound dressing device prevents microbial colonization of the dressing and stops bleeding from the insertion site. The device provides combined haemostatic and antimicrobial effects at the insertion site but without adversely affecting wound healing.