Abstract: In a device for fastening a transcutaneous or implanted catheter, a plate of bendable material is provided with a soft flexible, button-shaped plate body that is defined by two lateral faces without projections. The plate body is provided with a clamping groove, open at both ends and axially slotted, for accommodating a catheter. The plate body is provided with a locking device for the axial slot, which consists of a leaf spring being embedded and fixed in the plate body on the closed side of the clamping groove which it bridges. Such a device reliably fixes transcutaneous or implanted catheters of any kind in a manner well tolerated by the body.

Abstract: A housing having a channel is provided with a slotted, elastomeric valve body dividing the channel. The slotted valve body is biased in the closed position by a metal spring. If the valve body's material loses resiliency, the spring guarantees that the valve takes its closed position, even if the valve body is kept in the opened state for a considerable span of time by a steel cannula inserted through the valve body.