Catheter clamping device

A clamping device for a shaft of a catheter comprising:

• a first member comprising an annular element defining a central lumen, the annular element having an outer surface having a non-circular cross-sectional profile;
• a second member rotatably coupled to the first member and defining a bore into which the annular element extends, the bore having a non-circular cross-sectional profile;
• wherein the clamping device is movable between a first, release state in which the second member is in a first rotational position relative to the first member and the central lumen has a first diameter, and a second, clamped state in which the second member is in a second rotational position relative to the first member and the central lumen has a second diameter, which is less than the first diameter;
• wherein when the clamping device is in the clamped state, the clamping device engages an outer surface of a catheter shaft extending through the central lumen and when the clamping device is in the release state, the clamping device can be moved along a length of the catheter shaft;
• and
• wherein the clamping device further comprising a first pair of extension members and a second pair of extension members, wherein when the first pair of extension members abut each other the clamping device is in the release state and when the second pair of extension members abut each other the clamping device is in the clamped state.

A clamping device for a shaft of a catheter comprising:

• a first member comprising an annular element having a first bore, an outer surface of the annular element having a non-circular shape in cross-section formed by one or more engagement members extending from the outer surface of the annular element;
• a second member rotatably coupled to the first member, the second member comprising a body portion including a second bore having a non-circular shape in cross-section into which the annular element extends;
• wherein rotation of the first and second members relative to one another moves the clamping device between a first state in which the first bore has a first diameter and a second state wherein the first bore has a second diameter smaller than the first diameter;
• wherein when the clamping device is in the second state, the clamping device is configured to engage an outer surface of a catheter shaft extending through the central lumen and when the clamping device is in the release state, the clamping device is configured such that it can move along a length of the catheter shaft;
• and
• wherein when in the release state, the second bore and the annular element are rotationally aligned with one another.