Slotted clear cannula
AssigneeA.M. Surgical, Inc.
InventorsRomi Mirza, Ather MIRZA
Life of this patent
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Abstract
A slotted cannula for endoscopic surgical procedures is disclosed. The slotted cannula has a tubular body having a distal end, a proximate end, an open slot extending longitudinally from the beginning of the proximate end to the proximity of the distal end, and a pair of wings integrally formed on the proximate end. The tubular body is made from a transparent material and has an inner diameter large enough to accommodate an endoscope.
Claims30
A method for performing endoscopic carpal tunnel release, comprising:
- making an incision at a location proximate to a transverse carpal ligament in need of such release to establish an entry portal;
- inserting a dissector into the entry portal to form a pathway beneath the transverse carpal ligament;
- inserting an elongated cannula having a tubular body with an open proximal end and an open slot extending to the proximity of a distal end into the pathway;
- visualizing the transverse carpal ligament with an endoscope;
- dividing the transverse carpal ligament with a cutting instrument protruding through the open slot of the elongated cannula;
- and
- withdrawing the elongated cannula through the entry portal.
A method for performing an endoscopic surgical procedure, comprising:
- making an incision at a location proximate to an operative site in need of such surgical procedure to establish an entry portal;
- inserting a dissector into the entry portal to form a pathway to the operative site;
- inserting an elongated cannula having a tubular body with an open proximal end and an open slot extending to the proximity of a distal end into the pathway and advancing the elongate cannula until the distal end of the elongate cannula reaches the operative site;
- visualizing a target tissue at the operative site with an endoscope and positioning the cannula at the operative site so as to perform a desired operative procedure on the target tissue;
- operatively engaging the target tissue with a cutting instrument protruding through the open slot in the proximity of the distal end of the elongated cannula;
- and
- withdrawing the elongated cannula through the entry portal.
A device for performing endoscopic carpal tunnel release and cubital tunnel release, comprising:
- an elongated cannula having a tubular body with a central lumen, an open proximal end and an open slot extending to the proximity of a distal end;
- and
- a movable blade capable of extending through said open slot to divide a target tissue wherein the tubular body of the elongated cannula has a length in the range about 10-15 cm.
A device for performing an endoscopic procedure, comprising:
- an elongated cannula having a tubular body with a central lumen, an open proximal end and an open slot extending to the proximity of a distal end;
- and
- a movable blade capable of extending through said open slot to divide a target tissue.
Dependencies are inferred from the claim text.