Surgical tool with sheath

摘要

A surgical tool can include a main unit and a first rigid sheath. The main unit includes an inner tube that is received within an outer tube. The first rigid sheath removably receives the main unit and connects to the main unit via a coupling between a first connector portion of the main unit and a second connector portion of the rigid sheath. The first rigid sheath can be completely removed from the main unit when the first connector portion is decoupled from the second connector portion. A different rigid sheath having a different shape from the shape of the first rigid sheath can then be removably attached to the main unit instead of the first rigid sheath. A surgical tool kit includes a plurality of rigid sheaths having different shapes and having the ability to be removably attached to the main unit.

主权项

1. A surgical tool comprising:
a main unit including:
an inner tube having a first end and a second end, the inner tube including a cutting surface at the first end and a flexible portion located between the first end and the second end; andan outer tube having a first end and a second end, the outer tube including a cutting window at the first end and a flexible portion located between the first end and the second end, the inner tube received within the outer tube so as to align the cutting surface of the inner tube with the cutting window of the outer tube; a rigid sheath having a first end and a second end, the rigid sheath removably receives the main unit such that the cutting window extends beyond an opening of the first end of the rigid sheath; and a connector including:
a first connector portion located on the outer tube adjacent to the second end of the outer tube such that the flexible portion of the outer tube is located between the first connector portion and the first end of the outer tube; anda second connector portion located on the rigid sheath adjacent to the second end of the rigid sheath, the first connector portion when connected to the second connector portion detachably couples the rigid sheath to the outer tube, whereinthe main unit can be completely removed from the rigid sheath when the first and second connector portions are uncoupled from each other, the first and second connector portions are adjustably connectable to each other such that an orientation of the cutting window relative to a longitudinal axis of the rigid sheath can be radially adjusted, and one of the first and second connector portions includes a plurality of individually selectable engagement members, and the other of the first and second connector portions includes an engaging member that is selectively engaged with one of the engagement members to select a desired radial orientation of the cutting window.