Microsurgical instruments
AssigneeNico Corporation
InventorsJoseph L. MARK, Brian C. DOUGHERTY
Life of this patent
Estimating the term…
Abstract
A surgical instrument is disclosed herein. The surgical instrument comprises a housing, a first actuation member, a second actuation member, and a first cannula. The first actuation member is configured for imparting a reciprocating action to a portion of the instrument. The second actuation member configured for imparting a rotational action to a portion of the instrument. The first cannula is operatively connected to the second actuation member, such that the first cannula is configured for rotational movement with respect to the housing. In one arrangement, a wire member is disposed within the first cannula and is configured to rotate with the first cannula.
Claims20
A surgical instrument, comprising:
- a housing;
- a first actuation member configured for imparting a reciprocating action to a portion of the instrument;
- a second actuation member configured for imparting a rotational action to a portion of the instrument;
- a first cannula operatively connected to the second actuation member, such that the first cannula is configured for rotational movement with respect to the housing, and
- a wire member disposed within the first cannula and configured to rotate with the first cannula.
A surgical instrument, comprising:
- a housing;
- a first actuation member configured for imparting a reciprocating action to a an inner cannula;
- a second actuation member configured for imparting a rotational action to the inner cannula and to an outer cannula such that the inner cannula and outer cannula rotate together;
- wherein the inner cannula further comprises a first land member formed at a distal end of the inner cannula, the first land member terminating in an upwardly extending first toe member;
- wherein the outer cannula further comprises a second land member formed at a distal end of the outer cannula, the second land member terminating in an upwardly extending second toe member;
- and
- wherein reciprocation of the inner cannula causes the first and second toe members to be brought into engagement.
Dependencies are inferred from the claim text.