Patent ID: 8758329

Claim:
A liquid catheter, in particular a urinary catheter for insertion into a female bladder, comprising: a catheter body and at least one operating member extending proximally of said catheter body and being connected durably thereto, said catheter body comprising an elongated shaft portion having a longitudinal liquid channel for passing a liquid flow between a distal side and a proximal side thereof, and said catheter body comprising an anchoring portion distally of said shaft portion, said anchoring portion comprising an anchoring body which is deployable from i) a relatively slender first state, which allows a transluminal introduction of said catheter body in a user's body cavity defined by a female bladder, into ii) an expanded second state, which prevents an inadvertent escape of the catheter body from said body cavity defined by said bladder, said shaft portion having a sufficient length to reach beyond a closure point of a luminal sphincter while the anchoring body resides in said user's body cavity defined by said bladder, and said catheter body being sufficiently compact to be received completely inside said user's body cavity defined by said bladder, wherein the anchoring body is self expandable from said relatively slender first state into said expanded second state, wherein said anchoring body is balloon shaped in said expanded state and widens gradually in a distal direction at a side which is directed towards said shaft portion, wherein said anchoring body comprises a number of resilient filaments which are connected to said shaft portion and which are mutually separated in a peripheral direction by longitudinal incisions, which filaments are configured to transform from a straightened state to a longitudinally curved state and which filaments are configured and sufficiently resilient to expel said catheter body from said urethral sphincter and into said bladder in the absence of a force applied on said operating member.