Orthopedic tethered implants and system

Patent metadata

Field	Value
Publication number	US-11026722-B2
Application number	US-201715660542-A
Country	US
Kind code	B2
Filing date	Jul 26, 2017
Priority date	Sep 14, 2011
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A clamp assembly for orthopedic use having a housing that includes a top surface, a recess, a distal base and a bottom surface, the recess defining a longitudinal axis and extending through the housing from the top surface through the distal base and toward the bottom surface, and at least two through slots, each one of being disposed at a bottom or a side a surface of the housing. The assembly including a securement assembly positionable within the recess in a co-axial relationship to a mating surface on the recess, and a band sized for travel along a predetermined path defined in part by the through slots in the housing, wherein at least one of the through slots is a starting point for travel of the band along the predetermined path.

First claim

The invention claimed is:

1. A clamp assembly for orthopedic stabilization, the assembly comprising:
a unitary clamp housing having a top surface, a recess, and a distal base having a bottom surface, the recess defining a longitudinal axis and extending through the housing from the top surface through the distal base and toward the bottom surface, the housing further comprising one or more through slots, wherein at least one through slot is disposed at the bottom surface of the housing and any other of the one or more through slots is disposed at a surface of the housing selected from the bottom surface of the housing and a side surface of the housing;
a securement assembly positionable within the recess in a co-axial relationship to a mating surface on the recess;
a compression assembly comprising a compression element positionable within the distal base below and in contact in a co-axial relationship with the securement assembly; and
a band sized for travel along a predetermined path defined in part by the at least one through slot in the housing,
wherein a first end of the band is fixed to the clamp housing by securement of a looping portion of the first end around a pin or bridge disposed within the at least one through slot that is disposed at the bottom surface of the housing, the band being attached to itself to form the looping portion, and
wherein the first end of the band is a starting point for travel of the band along the predetermined path and the band passes below the compression assembly and is compressible in the distal base when the securement assembly is positioned within the recess.

2. The clamp assembly of claim 1 wherein the mating surface of the recess comprises a locking feature for engaging with the securement assembly.

3. The clamp assembly of claim 2 wherein the locking feature on the mating surface of the recess comprises one or more of threads and a groove, and wherein the securement assembly comprises a securement element that is engageable with the mating surface of the recess.

4. The clamp assembly of claim 2 comprising more than two through slots, wherein at least two through slots are disposed opposite one another, each on the side surface of the housing and positioned on the housing to define the path of the band below the compression assembly.

5. The clamp assembly of claim 3 comprising more than two through slots, wherein at least two through slots are disposed opposite one another, each on the side surface of the housing and positioned on the housing to define the path of the band below the compression assembly.

6. The claim assembly of claim 5 wherein the side surface of the housing comprises first and second opposing elongate side arms that extend along the longitudinal axis defined by the recess, wherein each of the at least two through slots is disposed on the side surface of the housing in one of the opposing elongate side arms.

7. The claim assembly of claim 6 wherein the securement element is a surgical rod, and wherein the at least two opposing through slots in the elongate side arms define a band path below the surgical rod, and wherein the locking element is a set screw and at least a portion of the housing recess is threaded for engagement with the set screw.

8. The clamp assembly of claim 7 , the clamp housing comprising on the bottom surface of the distal base two opposing coaxial holes and a pin insertable therein, the coaxial holes and inserted pin positioned to bisect the elongate slot aperture and form the starting point for travel of the band, and wherein a first end of the band is fixed to the clamp housing by engagement around the pin.

9. The clamp assembly of claim 7 , the clamp housing comprising two elongate slot apertures on the bottom surface of the distal base and a solid bridge between the slot apertures, and wherein a first end of the band is fixed to the clamp housing by engagement through the two elongate slot apertures and secured to the bridge to form the starting point for travel of the band.

10. The clamp assembly of claim 1 comprising at least two through slots.

11. The clamp assembly of claim 1 wherein the clamp housing is unitary.

12. A clamp assembly for providing stabilization as a bone anchor, the assembly comprising:
a unitary clamp housing comprising a recess, a top surface, a distal base and a bottom surface, and comprising two opposing arms extending from the base, the recess extending through the housing between the opposing arms and toward the bottom surface, the housing further comprising at least one through slot in each of the two opposing arms, and two slots disposed at the bottom surface of the housing in a parallel orientation to each other and separated by a bridge extending therebetween;
a locking element positionable within the recess;
a securement element comprising a surgical rod positionable within the recess below the locking element; and
a band sized for travel along a predetermined path defined in part by the slots in the housing,
wherein a first end of the band is fixed to the housing by securement of a looping portion of the first end around a pin or bridge disposed within a through slot disposed at the bottom surface, the band being attached to itself to form the looping portion,
wherein the first end of the band is a starting point for travel of the band along the predetermined path, and
wherein the slots in the arms are positioned on the housing to define the path of the band below the locking element.

13. A clamp assembly for orthopedic stabilization, the assembly comprising:
a first unitary clamp housing having a first top surface, a first recess, and a first distal base having a first bottom surface, the first recess defining a first longitudinal axis and extending through the first unitary clamp housing from the first top surface through the first distal base and toward the first bottom surface, the first unitary clamp housing further comprising one or more first through slots, wherein at least one first through slot is disposed at the first bottom surface of the first unitary clamp housing and any other of the one or more first through slots is disposed on a first surface of the first unitary clamp housing selected from the first bottom surface of the first unitary clamp housing and a first side surface of the first unitary clamp housing;
a first securement assembly positionable within the first recess in a first co-axial relationship to a first mating surface on the first recess; and
a first compression assembly comprising a first compression element positionable within the first distal base below and in contact in a co-axial relationship with the first securement assembly;
a second unitary clamp housing having a second top surface, a second recess, and a second distal base having a second bottom surface, the second recess defining a second longitudinal axis and extending through the second unitary clamp housing from the second top surface through the second distal base and toward the second bottom surface, the second unitary clamp housing further comprising one or more second through slots, wherein at least one second through slot is disposed at the second bottom surface of the second unitary clamp housing and any other of the one or more second through slots is disposed on a second surface of the second unitary clamp housing selected from the second bottom surface of the second unitary clamp housing and a second side surface of the second unitary clamp housing;
a second securement assembly positionable within the second recess in a second co-axial relationship to a second mating surface on the second recess; and
a second compression a

Assignees

• Orthopediatrics Corp

Inventors

• Albert Michael
• Lindquist Stuart
• Roof Randy
• Kapitan John

Classifications

• A61B17/70

  Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant · CPC title

• A61B17/7077

  for moving bone anchors attached to vertebrae, thereby displacing the vertebrae · CPC title

• A61B17/8869

  Tensioning devices · CPC title

• A61B17/7049

  Connectors, not bearing on the vertebrae, for linking longitudinal elements together (A61B17/7055, A61B17/7053, A61B17/7019 take precedence) · CPC title

• A61B17/7053

  with parts attached to bones or to each other by flexible wires, straps, sutures or cables · CPC title