Distraction and retraction assembly
OwnerKevin Seexinventor
Life of this patent
Estimating the term…
Abstract
An assembly allowing retraction of soft tissue away from a reference plane; the assembly including at least one retracting element each having a distal end with a formation allowing anchorage of the at least one retracting element. The assembly also includes a proximal end of the at least one retracting element capable of movement through at least one degree of freedom relative to the anchorage.
Claims27
An assembly capable of retraction of soft tissue and distraction of bone during surgical procedures, the assembly comprising:
- an anchorage which anchors the assembly to said bone;
- at least one retracting arm having a first free end and a second end, the second end including a formation which allows the at least one retracting arm to be detachably retained by said anchorage, the formation allowing said at least one retracting arm to be capable of movement through at least one degree of freedom relative to said anchorage;
- wherein each said at least one retracting arm is rotatable about an axis through said second end of said at least one retracting arm;
- the anchorage including two anchorage elements each having formations to anchor the assembly to said bone and a frame assembly including at least one retaining member which receives said second end of each said retracting arms.
An assembly according to claim 10 wherein, the frame assembly is generally U shaped such that the first and second retaining arms are parallel and disposed normally to the bridge member.
A retraction and distraction assembly for use in soft tissue retraction and bone distraction, the assembly comprising:
- a frame assembly including two retention members and first and secondary bridge members each having an opening which receives an anchorage for engaging bone to anchors the retraction and distraction assembly;
- the first bridge member joining the retention members, wherein each said retention members has a first end attached to said first bridge and a second free end;
- the retention members each receiving and retaining thereon at least one retracting arm having a first free end and a second end, the second end including a formation which allows the retractor arm to be detachably retained by said retention arms enabling said retractor arms to rotate about said retention arms and slide therealong.
A frame assembly according to claim 22 wherein, each retention member engages a co-operating formation on the second end of the retractor arms, allowing the retractor arms to rotate about respective retention members and slide therealong.
An assembly for combined retraction of wound margins of soft tissue and distraction of vertebrae during spinal surgery;
- the assembly including;
- a pair of pins anchored in said vertebrae;
- sleeves concentrically engaging said pins;
- means to apply a distraction force to said pins via said sleeves;
- a first retention member having a first end including a recess capable of engaging one said pins and a second end including connection means which releasably receives a first retractor arm via a cooperating mating profile;
- a second retention member having a first end including a recess capable of engaging the other of said pins and a second end including connection means which releasably receives a second retractor arm via a mating profile;
- wherein said first and second retractor arms are capable of selective rotation about said retention members to retract soft tissue margins during surgery.
Dependencies are inferred from the claim text.