Surgical instrument
AssigneesPENTAX Corporation, Tsunenori Takei
InventorsTsunenori Takei, Yukio Taniguchi, Yoshie Tominaga
Life of this patent
Estimating the term…
Abstract
There is provided a surgical instrument that includes an elongated body of which distal end is formed to press and drive a bone plug into a bone tunnel. The elongated body also has a guiding hole which is preferably formed along the longitudinal axis of the elongated body and in communication with a front opening formed at the distal end. The guiding hole is formed such that a guide wire can be inserted therein and extend out from the front opening. The guide wire is used to guide the bone plug towards the distal end of the surgical instrument and keep the bone plug there during driving it into the bone tunnel.
Claims23
A surgical instrument, comprising:
- an elongated body having:
- a distal end configured to press and drive a bone plug into a bone tunnel,
- a front opening provided at said distal end, and
- a guide hole in communication with said front opening and configured so that a guide wire, inserted into said guide hole, extends out of said front opening to guide the bone plug towards said distal end of said elongated body wherein a proximal end portion of the said guide hole is inclined with respect to a longitudinal axis of said elongated body at an acute angle to form a side opening at an outer peripheral surface of said elongated body,
- wherein said distal end includes a pressing member having a distal side portion and a proximal side portion, said distal side portion having a larger diameter than said proximal side portion, a recess provided in said pressing member, said recess configured to receive at least a portion of the bone plug, so that pulling of the guide wire that extends out of the front opening, away from the bone plug, pulls the bone plug and the elongated body towards the bone tunnel, and
- wherein said front opening is provided in said recess.
In combination, a surgical instrument and a guide wire, said surgical instrument comprising:
- a member having an outer peripheral surface,
- a distal end configured to press and drive a bone plug into a bone tunnel,
- a front opening formed at said distal end,
- a side opening formed at said outer peripheral surface, and
- a guide hole in communication with said front opening and said side opening,
- said guide wire comprising:
- a wire insertable into said guide hole from said side opening to extend out of said front opening, a stopper fixed to said wire, said stopper being located outside of said surgical instrument and being larger than either said guiding hole or said side opening, and
- wherein pulling of the guide wire that extends out of the front opening, away from the bone plug, pulls the bone plug and the elongated body towards the bone tunnel,
- wherein said distal end of said surgical instrument includes a recess configured to receive a proximal end of the bone plug,
- wherein said front opening is provided in said recess.
A surgical instrument, comprising:
- an elongated body having:
- a distal end configured to press and drive a bone plug into a bone tunnel,
- a front opening provided at said distal end,
- a guide hole in communication with said front opening and configured so that a guide wire, inserted into said guide hole, extends out of said front opening to guide the bone plug towards said distal end of said elongated body,
- wherein a proximal end portion of said guide hole is inclined with respect to a longitudinal axis of said elongated body at an acute angle to form a side opening at an outer peripheral surface of said elongated body, and
- wherein said distal end includes a pressing member having a distal side portion and a proximal side portion, said distal side portion having a larger diameter than said proximal side portion, and a recess provided in said pressing member, said recess configured to receive at least a portion of the bone plug within said recess, said front opening being provided in said recess.
Dependencies are inferred from the claim text.