Abstract: The wound protector has an annularly collapsible proximal ring and a flexible sleeve extends between the proximal ring and distal ring. After positioning of the distal ring in a wound, the proximal ring is expanded to draw the sleeve taut between the rings and is drawn tight against the wound. In one embodiment, the proximal ring includes a bent hollow tube with an arcuate rod in the tube bridging the open ends of the tube and a compression spring extending within the tube against the ends of the rod to bias the proximal ring into an extended state. Finger grips on the ends of the tube allow for squeezing of the tube into a collapsed state.

Abstract: In one embodiment, the dressing has a base which is to be adhered to a patient about a catheter site, an aperture in the base to pull a catheter line through and a cover with a window that is folded over and onto the base in a sealed manner. In another embodiment, the dressing has two covers with windows for folding over separate sections of a base to seal in the components of a catheter assembly with multiple catheters extending from a common housing.

Abstract: The wound protector has an annularly collapsible distal ring, an expansion member and a flexible sleeve extending between the distal ring and expansion member. After positioning of the distal ring in a wound, movement of the expansion member into an extended state expands the sleeve while drawing the sleeve tight against the wound and the expansion member against the patient.

Abstract: In one embodiment, the wound protector has an annularly collapsible proximal ring and a flexible sleeve extends between the proximal ring and distal ring. After positioning of the distal ring in a wound, the proximal ring is expanded to draw the sleeve taut between the rings 11, 12 and is drawn tight against the wound. In a second embodiment, the wound protector has a flexible sleeve secured between a distal ring and proximal ring of fixed diameters. In addition, an expansion member is disposed within a loop of the flexible sleeve about the proximal ring. After positioning of the distal ring in a wound, movement of the expansion member into an extended diametric state expands the loop in the sleeve diametrically while drawing the rings towards each other.

Abstract: In one embodiment, the protective cover assembly has a hub that is to be mounted on a needle assembly, such as a biopsy needle assembly, a cap that is movable off the hub to move over a cannula or stylet of the needle assembly and a pair of rolls of film within the cap. The rolls of film are secured at one end to the hub to unwind over the cannula. Pressing rolls or springs press the longitudinal edges of the film strips together in sealed relation to encase the cannula while the cap receives the end of the cannula or stylet in sealed relation. In a second embodiment, the cap is integrated with a hub of a needle assembly having a cannula extending from the hub.