Orthopedic fixation system

Patent metadata

Field	Value
Publication number	US-12446938-B2
Application number	US-202318096403-A
Country	US
Kind code	B2
Filing date	Jan 12, 2023
Priority date	Jan 12, 2023
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

An orthopedic fixation system including an orthopedic implant transitionable between a natural shape and an insertion shape. The orthopedic implant includes a bridge deformable to move the orthopedic implant between the natural shape and the insertion shape, a claw extending from the bridge at a first end thereof, and an anchor extending from the bridge at a second end thereof. The orthopedic implant when in the insertion shape affixes a bone fragment and a bone in that the anchor implants in the bone, the bridge extends over the bone and the bone fragment to position the claw at the bone fragment, and the claw captures the bone fragment. Moreover, upon an attempted transition of the orthopedic implant from the insertion shape to the natural shape, the orthopedic implant delivers energy stored therein to the bone fragment and the bone thereby affixing the bone fragment with the bone.

First claim

What is claimed:

1. An orthopedic fixation system, comprising:
an orthopedic implant transitionable between a natural shape and an insertion shape whereby a transition of the orthopedic implant from the natural shape to the insertion shape stores deliverable energy and a transition of the orthopedic implant from the insertion shape to the natural shape delivers stored energy, the orthopedic implant, comprising:
a bridge with a first end and a second end, the bridge being deformable to move the orthopedic implant between the natural shape and the insertion shape,
a claw comprising a first hook extending in a curve continuous from the first end of the bridge to a tip of the first hook and a second hook extending in a curve continuous from the first end of the bridge to a tip of the second hook, and
an anchor extending from the bridge at the second end thereof; and

the orthopedic implant when transitioned to the insertion shape being adapted to affix a bone fragment and a bone, whereby:
the anchor is configured to implant in the bone,
the bridge is configured to extend over the bone and the bone fragment to position the first hook and the second hook over the bone fragment exterior thereto, and
the first hook and the second hook being configured to grasp and thereby capture the bone fragment exterior thereto such that, upon an attempted transition of the orthopedic implant from the insertion shape to the natural shape, the orthopedic implant being adapted to deliver the energy stored therein to the bone fragment and the bone thereby affixing the bone fragment with the bone.

2. The orthopedic fixation system of claim 1 , the anchor, comprising a leg extending from the bridge at the second end thereof, the leg being configured to implant in the bone.

3. The orthopedic fixation system of claim 1 , the anchor, comprising a first leg and a second leg extending from the bridge at the second end thereof, the first leg and the second leg being configured to implant in the bone.

4. The orthopedic fixation system of claim 1 , the bridge, comprising a first span and a second span being spaced apart to define an opening therebetween.

5. The orthopedic fixation system of claim 4 , the first span and the second span being connected at the first end of the bridge and at the second end of the bridge.

6. The orthopedic fixation system of claim 5 , the first span and the second span each including a transition section therein, the transition section of the first span and the transition section of the second span respectively locating the first span and the second span in a natural form such that the orthopedic implant in the natural shape includes the claw comprising the first hook and the second hook and the anchor residing at a first distance, and the transition section of the first span and the transition section of the second span being deformable to store energy while moving respectively the first span and the second span from the natural form to an insertion form such that the orthopedic implant in the insertion shape includes the claw comprising the first hook and the second hook and the anchor residing at a second distance that is greater than the first distance.

7. The orthopedic fixation system of claim 6 , the first span and the second span being configured to extend over the bone and the bone fragment to position the claw first hook and the second hook over the bone fragment exterior thereto such that, upon the transition section of the first span and the transition section of the second span attempting to transition respectively the first span and the second span from the insertion form to the natural form, the orthopedic implant in attempting to transition from the insertion shape to the natural shape being adapted to deliver the energy stored therein to the bone fragment and the bone thereby affixing the bone fragment with the bone.

8. The orthopedic fixation system of claim 6 , the claw, comprising:
the first hook extending from the bridge at the first end adjacent the first span thereof;
the second hook extending from the bridge at the first end adjacent the second span thereof; and
the first hook and the second hook being configured to grasp and thereby capture the bone fragment exterior thereto such that, upon the transition section of the first span and the transition section of the second span attempting to transition respectively the first span and the second span from the insertion form to the natural form, the orthopedic implant in attempting to transition from the insertion shape to the natural shape being adapted to deliver the energy stored therein to the bone fragment and the bone thereby affixing the bone fragment with the bone.

9. The orthopedic fixation system of claim 6 , the anchor, comprising:
a first leg extending from the bridge at the second end adjacent the first span thereof;
a second leg extending from the bridge at the second end adjacent the second span thereof; and
the first leg and the second leg being configured to implant in the bone.

10. An orthopedic fixation system, comprising:
an orthopedic implant transitionable between a natural shape and an insertion shape whereby a transition of the orthopedic implant from the natural shape to the insertion shape stores deliverable energy and a transition of the orthopedic implant from the insertion shape to the natural shape delivers stored energy, the orthopedic implant, comprising:
a bridge with a first end and a second end, the bridge being deformable to move the orthopedic implant between the natural shape and the insertion shape,
a claw extending from the bridge at the first end thereof, and
an anchor extending from the bridge at the second end thereof;

the orthopedic implant when transitioned to the insertion shape being adapted to affix a bone fragment and a bone, whereby:
the anchor is configured to implant in the bone,
the bridge is configured to extend over the bone and the bone fragment to position the claw at the bone fragment, and
the claw is configured to capture the bone fragment such that, upon an attempted transition of the orthopedic implant from the insertion shape to the natural shape, the orthopedic implant being adapted to deliver the energy stored therein to the bone fragment and the bone thereby affixing the bone fragment with the bone;

the bridge, comprising a first span and a second span spaced apart to define an opening therebetween, whereby the first span and the second span connect at the first end of the bridge and at the second end of the bridge;
the first span includes a transition section therein;
the second span includes a slot therein that divides the second span into a first span segment and a second span segment;
the first span at the transition section thereof being configured to close the first span segment and the second span segment whereby the first span and the second span are located in a natural form such that the orthopedic implant in the natural shape includes the claw and the anchor residing at a first distance; and
the first span at the transition section thereof, during a deformation to store energy, being pivotable to open the first span segment and the second span segment whereby the first span and the second span move from the natural form to an insertion form such that the orthopedic implant in the insertion shape includes the claw and the anchor residing at a second distance that is greater than the first distance.

11. The orthopedic fixation system of claim 10 , the first span and the second span being configured to extend over the bone and the bone fragment to position the claw at the bone fragment such that, upon the transition section of the fi

Assignees

• Depuy Synthes Products Inc

Inventors

• Loftus-Vergari Jeffrey
• Rossi Danielle
• CHENEY Daniel
• Watt Philip
• Conley Jordan

Classifications

• A61B17/8004

  with means for distracting or compressing the bone or bones · CPC title

• A61B17/808

  Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms · CPC title

• A61B2017/0645

  being elastically deformed for insertion · CPC title

• A61B17/0642 Primary

  for bones, e.g. for osteosynthesis or connecting tendon to bone · CPC title

• A61B2017/681

  Alignment, compression, or distraction mechanisms · CPC title