Tissue debulking device

A surgical tool for debulking hard tissue, the surgical tool comprising:

• a hollow member, which is elongated and comprises a distally located bent section;
• a cable extending within the hollow member, along a predetermined length thereof, from a cable proximal end to a cable distal end, the cable being configured to resist helixing;
• a headpiece positioned at, or distally to, the bent section;
• a rotation actuator coupled to the cable proximal end and configured to rotate the cable about a longitudinal axis thereof;
• and
• a motion converter coupled to the cable distal end and to the headpiece, at least a part of the motion converter is positioned in, and/or distally, to the bent section, the motion converter being configured to transform rotational motion of the cable into an axial, reciprocating motion of the headpiece;
• wherein the headpiece is configured to break up hard tissue by hammering thereof, when effecting axial, reciprocating motion, while simultaneously minimizing damage to soft tissue if struck.

A surgical tool for debulking hard tissue, the surgical tool comprising:

• a hollow member, which is elongated and comprises a main section and a distal section, the distal section being positioned at an angle relative to the main section;
• a cable, which is elongated and comprises a cable proximal end and a cable distal end, the cable extending within the main section there along and being configured to resist helixing;
• a work element exposed on a sidewall of the distal section and configured for transverse, reciprocating motion, wherein, at least during a part of the transverse, reciprocating motion, the work element radially projects from the sidewall;
• a rotation actuator coupled to the cable proximal end and configured to rotate the cable about a longitudinal axis thereof;
• and
• a motion converter coupled to the cable distal end and to the work element, the motion converter being configured to transform rotational motion of the cable into the transverse, reciprocating motion of the work element;
• wherein the work element comprises a radially facing eroding surface, the work element being configured to break up hard tissue by hammering thereof, when effecting transverse, reciprocating motion, while simultaneously minimizing damage to soft tissue if struck.

A surgical tool for debulking hard tissue, the surgical tool comprising:

• an elongated hollow member comprising a main section and a distal section;
• a cable extending within the hollow member along a predetermined length thereof, from a cable proximal end to a cable distal end, the cable being configured to resist helixing;
• a headpiece positioned at the distal section;
• a rotation actuator coupled to the cable proximal end and configured to rotate the cable about a longitudinal axis thereof;
• and
• a motion converter positioned in, or in proximity to, the distal section, the motion converter being coupled to the cable distal end and to the headpiece, and configured to transform rotation of the cable into an axial or transverse, reciprocating motion of the headpiece;
• wherein the headpiece is configured to break up hard tissue by hammering thereof, when effecting axial or transverse, reciprocating motion, while simultaneously minimizing damage to soft tissue if struck.