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US 12,605,178 B2Granted
Discectomy tool
AssigneeCombination Spine, Inc.
InventorsJoshua M. Ammerman, Richard Briganti
Life of this patent
Estimating the term…
Abstract
A discectomy device for clearing material out of a disc space of a patient having a body, a first rotatable member at the distal portion of the body, and a second rotatable member at the distal portion of the body spaced from the first rotatable member. A transverse axis passes through the first and second rotatable members. A first mechanism is actuable to rotate the first and second rotatable members about the transverse axis. A mechanism can be provided to expand the rotatable members to increase the distance between the rotatable members. The rotatable members in some versions can be detached from the device for placement within the disc space.
Claims29
A discectomy device for clearing material out of a disc space of a patient, the device comprising:
- a) a body having a proximal portion, a distal portion and a longitudinal axis;
- b) a first rotatable member at the distal portion of the body;
- c) a second rotatable member at the distal portion of the body and spaced from the first rotatable member, wherein a transverse axis passes through the first and second rotatable members, the transverse axis extending transverse to the longitudinal axis, and the first rotatable member being elongated along a longitudinal axis of the first rotatable member and the second rotatable member being elongated along a longitudinal axis of the second rotatable member, wherein the longitudinal axis of the first rotatable member and the longitudinal axis of the second rotatable member are transverse to the transverse axis;
- and
- d) wherein the first and second rotatable members rotate about the transverse axis;
- and
- e) wherein the first rotatable member has an outer surface and an inner surface, and the second rotatable member has an outer surface and inner surface, the inner surface of the first rotatable member facing the inner surface of the second rotatable member, wherein a distance between the inner surfaces of the first and rotatable members can be increased.
4 more elements
A discectomy device for clearing material out of a disc space of a patient, the device comprising:
- a) a body having a proximal portion, a distal portion and a longitudinal axis;
- b) a first rotatable member at the distal portion of the body;
- c) a second rotatable member at the distal portion of the body and spaced from the first rotatable member, wherein a transverse axis passes through the first and second rotatable members, the transverse axis extending transverse to the longitudinal axis, and the first rotatable member being elongated along a longitudinal axis of the first rotatable member and the second rotatable member being elongated along a longitudinal axis of the second rotatable member, wherein the longitudinal axis of the first rotatable member and the longitudinal axis of the second rotatable member are transverse to the transverse axis;
- d) wherein the first and second rotatable members rotate about the transverse axis;
- and
- e) a first mechanism actuable to rotate the first and second rotatable members, wherein the first mechanism includes an elongated member having a proximal portion and a distal portion, the elongated member positioned within the body and rotatable to actuate a gear mechanism for rotating the first and second rotatable members about the transverse axis.
3 more elements
A discectomy device for clearing material out of a disc space of a patient, the device comprising:
- a) a body having a proximal portion, a distal portion and a longitudinal axis;
- b) a first rotatable member at the distal portion of the body;
- c) a second rotatable member at the distal portion of the body and spaced from the first rotatable member, wherein a transverse axis passes through the first and second rotatable members, the transverse axis extending transverse to the longitudinal axis, and the first rotatable member being elongated along a longitudinal axis of the first rotatable member and the second rotatable member being elongated along a longitudinal axis of the second rotatable member, wherein the longitudinal axis of the first rotatable member and the longitudinal axis of the second rotatable member are transverse to the transverse axis;
- d) wherein the first and second rotatable members rotate about the transverse axis;
- and
- e) wherein one or both of the first and second rotatable members are moved along the transverse axis to increase the distance between the first and second rotatable members, and the first and second rotatable members are maintained in a substantially parallel position during such movement along the transverse axis.
3 more elements
A discectomy device for clearing material from a disc space of a patient, the device comprising:
- a) a body having a proximal portion, a distal portion and a longitudinal axis;
- b) a first rotatable member at the distal portion of the body, the first rotatable member having a first surface and a second surface;
- and
- c) a second rotatable member at the distal portion, the second rotatable member spaced from the first rotatable member and having a first surface and a second surface, the second surface of the second rotatable member facing the second surface of the first rotatable member and the first surface of the first rotatable member and the first surface of the second rotatable member being substantially parallel, the first and second rotatable members are rotatable to clear disc material;
- and
- d) wherein a distance between the first and second rotatable members is changeable to change the distance between the surfaces of the first and second rotatable members, wherein the surfaces of the first and second rotatable members are maintained substantially parallel when the distance between the surfaces of the first and second rotatable members is changed.
3 more elements
Dependencies are inferred from the claim text.