A catheter clamp (1) comprising a base (2) and a pivotable cover (3), the cover arranged to be capable of adopting an open condition and a clamped condition, the clamp further comprising a resiliently biased displaceable latch (12) to releasably retain the cover in the clamped condition, wherein the latch displaceable on and relative to a support surface (11) which supports the latch, so as to release the cover from the clamped condition.