Diskectomy instrument with disposable blade head
First Claim
1. A diskectomy instrument comprising:
- a probe body;
a blade housing assembly including;
a first housing portion and a second housing portion, wherein the second housing portion is fixedly attached to the probe body, and the first housing portion is releasably connectable to the second housing portion; and
at least one blade opening;
at least one blade movably mounted at least partially within the blade housing for movement through the at least one blade opening between an extended position and a retracted position; and
a drive stem movably mounted for linear movement within the probe body and operatively connected to an actuator for movement between a first position and a second position, wherein with the drive stem in the first position, the at least one blade is in the blade extended position and with the drive stem in the second position, the at least one blade is in the blade retracted position.
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0 Petitions
Accused Products
Abstract
A diskectomy instrument includes a blade housing assembly having a first housing portion and a second housing portion. The second portion is fixedly attached to a probe body, and the first portion is releasably connectable to the second portion. At least one blade opening is provided, and at least one blade is movably mounted at least partially within the blade housing for movement through the at least one blade opening between an extended position and a retracted position. A drive stem is movably mounted for linear movement within the probe body and is operatively connected to an actuator. The drive stem engages the at least one blade to move the blade between the extended position and the retracted position. A removal tool is provided to permit the first housing portion to be removed from the second housing portion.
99 Citations
21 Claims
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1. A diskectomy instrument comprising:
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a probe body;
a blade housing assembly including;
a first housing portion and a second housing portion, wherein the second housing portion is fixedly attached to the probe body, and the first housing portion is releasably connectable to the second housing portion; and
at least one blade opening;
at least one blade movably mounted at least partially within the blade housing for movement through the at least one blade opening between an extended position and a retracted position; and
a drive stem movably mounted for linear movement within the probe body and operatively connected to an actuator for movement between a first position and a second position, wherein with the drive stem in the first position, the at least one blade is in the blade extended position and with the drive stem in the second position, the at least one blade is in the blade retracted position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A removal tool in combination with a diskectomy instrument, the combination comprising:
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a diskectomy instrument having a blade housing with a removable portion and at least one blade at least partially contained within the blade housing; and
a removal tool including a pair of opposing handles movably connected, each handle having a clamping section provided with at least one protruding element sized, shaped, and positioned such that with the removal tool in a closed position, the protruding elements each engage an exterior surface of the blade housing to compress an outer wall of the blade housing and release the removable portion from engagement with a remainder of the blade housing. - View Dependent Claims (17, 18)
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- 19. A bi-directional blade in combination with a diskectomy instrument including a body and a drive stem having a blade mating portion, the bi-directional blade comprising an edge having a central plane and a plurality of cutting elements arranged along the edge, each cutting element having a sharpened cutting edge, wherein adjacent cutting elements are separated by blunt spacer elements.
Specification