Distracting cannula for sheathless arthroscope
OwnerReinhold Schmieding, James P. Bradleyinventors
Life of this patent
Estimating the term…
Abstract
An arthroscope cannula for a sleeveless arthroscope. The arthroscope cannula is provided with an elongated shaft, a distal end with a threaded portion which allows the arthroscope cannula to securely lock into the knee capsule, and a proximal end for receiving the sheathless arthroscope. The cannula includes a slidable retention clip that is advanced on the shaft of the cannula to a position against the skin to maintain traction and stabilize the cannula against retraction, and to distend the joint capsule.
Claims12
An arthroscope cannula, comprising:
- an elongated cannulated shaft having a proximal end and a distal end;
- a threaded region located at the distal end of the elongated shaft;
- and
- a slidable retention member mounted on the cannulated shaft.
An arthroscopic system, comprising:
- an elongated cannulated shaft having a proximal end and a distal end;
- a threaded region located at the distal end of the elongated shaft;
- and
- a slidable retention member attached to the cannulated shaft;
- and
- a 4 millimeter arthroscope insertable within the cannulated shaft of the cannula.
A method of conducting arthroscopic surgery, comprising the steps of:
- providing an incision in tissue at a joint location;
- inserting an arthroscope cannula through the incision, the arthroscope cannula being provided with an elongated shaft having a proximal end and a distal end;
- a threaded region located at the distal end;
- and a slidable retention member;
- securing the threaded region of the arthroscope cannula into a joint capsule;
- sliding the retention member toward the distal end of the cannula to stabilize the cannula and cause distention of the capsule;
- and
- inserting an arthroscope into the cannula and through the incision to observe a surgical procedure within the joint capsule.
Dependencies are inferred from the claim text.