Target socket
AssigneeOhio Medical Instruments Company, Inc.
InventorAli Mowlai-Ashtiani
Life of this patent
Estimating the term…
Abstract
A target socket for frameless stereotactic surgery has a ring with an arcuate band that captures a target ball therein. The ring defines a pair of spaced apart channels which provide the ring with a degree of flexibility. The ring defines a radially oriented gap extending throughout the ring's entire thickness, the gap being spanned by a tightening member which allows a user to easily manually tighten the ring upon a target ball held within the arcuate band. The target socket is also provided with an attachment element for attaching the target socket to a surgical tooling structure. The attachment element has at least three links to provide the target socket with at least six degree of freedom.
Claims18
A target socket for a surgical instrument comprising:
- an annular ring of generally uniform radial thickness and having an outer surface and an inner surface, the ring having a radially oriented gap defined by spaced open end portions and also having at least two radially oriented channels defined in the outer surface and spaced away from the gap, the inner surface being shaped in an arcuate band;
- and
- a tangentially oriented tightening member spanning the gap between the end portions of the ring and selectively movable relative to the ring to vary the space of the gap, thereby to selectively vary the radius of the arcuate band, whereby a target may be held fixed in place within the arcuate band or may be rotated relative to the ring while still held within the arcuate band, the at least two radially oriented channels providing flexibility for the ring to open and close upon the target in response to movement of the member.
A combination target socket and target comprising:
- an annular ring of generally uniform radial thickness and having an outer surface and inner surface, the ring having a radially oriented gap residing between spaced open end portions and also having at least two radially oriented channels formed in the outer surface and spaced away from the gap, the inner surface being shaped in an arcuate band;
- a tangentially oriented tightening member spanning the gap between the end portions of the ring and selectively moveable relative to the ring to vary the space of the gap, thereby to selectively vary the radius of the arcuate band for holding the target fixedly in place within the arcuate band for allowing the target to be rotated relative to the ring while still held within the arcuate band, the at least two radially oriented channels providing flexibility for the ring to open and close upon the target in response to movement of the member;
- and
- a target removably held within the arcuate band of the ring, the target being fixable/rotatable relative to the arcuate band depending on the position of the tightening member, the target adapted to receivably hold a surgical instrument.
A surgical tool holding structure comprising:
- an arcuate halo retractor ring having an arcuate track;
- an attachment member having internal and external ends, an external end movable along and securable to the arcuate track, thereby to extendably position the internal end inside the halo retractor;
- a target socket fixed to the internal end of the attachment member, target socket having an annular ring having an outer surface and an inner surface, the ring having a radially oriented gap residing between spaced open end portions and also having at least two radially oriented channels formed in the outer surface and spaced away from the gap, the inner surface being shaped in an arcuate band and a tangentially oriented tightening member spanning the gap between the end portions of the ring and selectively moveable relative to the ring to vary the space of the gap, thereby to selectively vary the radius of the arcuate band;
- and
- a target removably held within the arcuate band of the ring, the target being fixable/rotatable relative to the arcuate band depending on the position of the tightening member, the target adapted to receivably hold a surgical instrument.
Dependencies are inferred from the claim text.