Prosthetic socket system, and prosthetic socket and liner

A prosthetic socket for use in a prosthetic socket system, the prosthetic socket comprising:

• a distal end region;
• at least one socket wall extending therefrom in a proximal direction, the socket wall, when in an applied state, is configured to at least partially enclose a stump that is received in the prosthetic socket;
• a connector for securing a prosthetic component;
• a coupling device arranged in the distal end region;
• at least one resistance region arranged or formed on an inner side of the socket wall, the at least one resistance region counteracts a movement extracting a liner out of the prosthetic socket in a proximal direction, wherein the at least one resistance region interacts in a form-locking manner to counteract a movement extracting the liner out of the prosthetic socket in the proximal direction, and wherein the at least one resistance region comprises a plurality of resistance elements inclined in an insertion direction of the liner into the prosthetic socket.

A liner for use in a prosthetic socket system, the liner comprising:

• a proximal entry opening;
• a lateral wall extending in a distal direction, which, when in the applied state, is configured to at least partially surround a stump and, when in the applied state, is configured to be arranged between the stump and a prosthetic socket;
• a coupling device arranged in a distal end region;
• wherein, on an outer side of the lateral wall of the liner, at least one resistance region is arranged or formed, which counteracts a movement extracting the liner out of the prosthetic socket in a proximal direction, wherein the at least one resistance region interacts in a form-locking manner to counteract a movement extracting the liner out of the prosthetic socket in the proximal direction, and wherein at least one the resistance region comprises a plurality of resistance elements inclined in an insertion direction of the liner into the prosthetic socket.