Double barrel spinal fixation system and method
OwnerParviz Kambininventor
Life of this patent
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Abstract
A double barrel adjustable clamping system adaptable for use with laminar hooks and pedicular bolts for use by a surgeon for reduction and fixation of a spinal column is disclosed which provides a rigid construct and is independent from the rod system thereby simplifying the surgical installation thereof. Also disclosed are multi-piece round and quadrilateral rod systems which are separated by novel adjustable cross bar assemblies.
Claims24
A surgically installed spinal fixation system comprising:
- (a) a body member having two generally parallel faces and a first opening therethrough adapted to receive a first longitudinal member;
- the centerline of said first opening is positioned generally along a spinal axis;
- (b) said body member also having a slotted second opening is positioned generally along said spinal axis whereby a second longitudinal member can be inserted into said slotted second opening;
- (c) a hook member connected to the outer surface of one of said generally parallel faces;
- (d) means for securing the outer surface of said first longitudinal member to the body member;
- (e) means for securing the outer surface of said second longitudinal member to the body member.
A surgically installed spinal fixation system comprising:
- (a) a body member having a first leg member and a second leg member and a slotted opening therebetween for receiving a first longitudinal member laterally into said slotted opening;
- (b) said first leg member having a first engagement means for engaging the outer surface of said first longitudinal member;
- and
- (c) said first leg member further having a second engagement means for engaging the outer surface of said first longitudinal members.
A spinal fixation system comprising:
- (a) a clamping means having a through bore with a center line positioned substantially parallel to the spinal axis and a slot having a center line aligned substantially parallel with said spinal axis;
- (b) a first interconnecting means for interconnecting at least two said clamping means;
- (c) a second interconnecting means for interconnecting one of said at least two clamping means to at least one other said clamping means.
An apparatus for selectively separating surgically installed longitudinal members comprising:
- A first C-shaped member having a bore positioned at the base thereof;
- said bore adapted to rotatably receive a first elongated member having a threaded bore;
- A second elongated member having a threaded pin portion on one end and a second C-shaped member on the other end;
- said threaded pin portion adjustably threaded into said threaded bore of said first elongated member;
- whereby the distance between said first C-shaped member and said second C-shaped member can be selectively adjusted by rotating said first elongated member.
A method of constructing a rigid laminal claw independent of the spinal rod system to correct a spinal deformity comprising the steps of:
- (a) surgically exposing the spine posteriorly;
- (b) clawing single or multiple lamina by interconnecting at least two clawing means for attaching to the spine;
- (c) reducing and fixating the deformity of the spine by attaching said at least two clawing means to a longitudinal member extending generally along the spine;
- and
- (d) attaching at least one end of said longitudinal member to the spine with a combination pedicular screw and clamping member.
A method of constructing a rigid laminal claw independent of the spinal rod system to correct a spinal deformity comprising the steps of:
- (a) surgically exposing the spine posteriorly;
- (b) clawing single or multiple lamina by interconnecting at least two clawing means for attaching to the spine;
- (c) reducing and fixating the deformity of the spine by attaching said at least two clawing means to a longitudinal member extending generally along the spine;
- and
- (d) attaching said clawing means to said spine with a combination laminar hook and clamping member.
Dependencies are inferred from the claim text.