Pectus bar stabilizer

Patent metadata

Field	Value
Publication number	US-9668792-B2
Application number	US-201514857422-A
Country	US
Kind code	B2
Filing date	Sep 17, 2015
Priority date	May 13, 2005
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

An assembly for surgically treating a chest-wall deformity may include an implantable stabilizer member, an implantable pectus bar and an implantable stopping member. The implantable stabilizer member may include first and second base parts and a channel defined by the first and second base parts. The stabilizer member may include first and second retaining bars extending between the first and second base parts and traversing the channel. The first and second base parts may be adapted to be secured to tissue of the chest wall. The implantable pectus bar may be receivable within the channel of the stabilizer member. The implantable stopping member may be adapted to be engaged with the pectus bar between the first and second retaining bars after the pectus bar is inserted into the channel to restrict movement of the pectus bar relative to the tissue.

First claim

What is claimed is:

1. A pectus bar stabilizer assembly comprising:
implantable first and second base parts defining a channel therebetween, the first base part configured to be separable from the second base part;
an implantable pectus bar configured to be received by the channel; and
an implantable retainer assembly including a stopping member and a first rib, the stopping member configured to be fixed to the pectus bar and the first rib configured to extend across the channel and prevent displacement of the stopping member past the first rib to retain the pectus bar in the channel; wherein the pectus bar is configured to be removed from the channel with the stopping member fixed to the pectus bar while the first and second base parts are within a patient's anatomy.

2. The pectus bar stabilizer assembly of claim 1 , wherein at least one aperture is formed at least partially into the first base part and at least one aperture is formed at least partially into the second base part.

3. The pectus bar stabilizer assembly of claim 2 , wherein at least one of the apertures formed in the first and second base parts passes completely through at least one of the first and second base parts.

4. The pectus bar stabilizer assembly of claim 3 , wherein both of the apertures formed in the first and second base parts pass completely through the first and second base parts.

5. The pectus bar stabilizer assembly of claim 2 , wherein the retainer assembly includes a pin located in the aperture in the first and second base parts, wherein relative movement of the first and second base parts in a first direction is prevented.

6. The pectus bar stabilizer assembly of claim 1 , wherein the retainer assembly includes a second rib extending across the channel.

7. The pectus bar stabilizer assembly of claim 6 , wherein the first and second ribs are secured to the first and second base parts.

8. The pectus bar stabilizer of claim 6 , wherein the stopping member is retained between the first and second ribs.

9. An assembly for surgically treating a chest-wall deformity comprising:
implantable first and second base parts configured to be separable, the first and second base parts positioned together and defining a channel to receive an implantable pectus bar; and
an implantable retainer assembly configured to retain the pectus bar relative to the first and second base parts within a patient's anatomy, the retainer assembly including a stopping member configured to be fixed to the pectus bar and a first rib extending across the channel to prevent displacement of the stopping member past the first rib to retain the pectus bar in the channel.

10. The pectus bar stabilizer assembly of claim 9 , wherein a portion of the stopping member is located in an aperture in the pectus bar.

11. The pectus bar stabilizer assembly of claim 9 , wherein the channel includes an aperture therethrough, at least a portion of the aperture in the channel being formed in each of the first and second base parts, the stopping member extending into the aperture in the channel.

12. The pectus bar stabilizer assembly of claim 11 , wherein the aperture in the channel is threaded, and a portion of the stopping member extending into the aperture in the channel including threading providing a threaded engagement between the stopping member and the aperture in the channel.

13. The pectus bar stabilizer assembly of claim 9 , further comprising a tool associated with the stopping member.

14. The pectus bar stabilizer assembly of claim 13 , herein the tool is severable from the stopping member upon insertion of the stopping member.

15. A pectus bar stabilizer assembly comprising:
an implantable stabilizer assembly including a base and a first retaining member, the base including a channel and configured to be attached to a patient's tissue, the first retaining member configured to extend across the channel;
an implantable pectus bar configured to be received by the channel between the base and the first retaining member; and
an implantable stopping member configured to be fixed to the pectus bar after the pectus bar is inserted into the channel to restrict movement of the pectus bar relative to the tissue; wherein the pectus bar is configured to be removed from the channel while the base is attached to the patient's tissue.

16. The pectus bar stabilizer assembly of claim 15 , wherein the base includes separable first and second base portions.

17. The pectus bar stabilizer assembly of claim 16 , wherein the first retaining member is fixed to the first and second base portions and couples the first and second base portions to one another.

18. The pectus bar stabilizer assembly of claim 17 , wherein the stabilizer assembly includes a second retaining member extending across the channel and fixed to the first and second base portions, the first and second base portions being free from direct engagement with one another when the first and second retaining members are severed.

19. The pectus bar stabilizer assembly of claim 15 , wherein the pectus bar is removable from the channel by severing the first retaining member.

20. The pectus bar stabilizer assembly of claim 19 , wherein the stopping member is configured to remain fixed to the pectus bar when the pectus bar is removed from the channel.

Assignees

• Biomet Microfixation Llc
• Zimmer Biomet Cmf & Thoracic Llc

Inventors

• Roman Shawn D
• Lewis Derek S

Classifications

• A61B17/823

  for the sternum · CPC title

• A61B17/68

  Internal fixation devices {, including fasteners and spinal fixators, even if a part thereof projects from the skin (bone staples A61B17/0642)} · CPC title

• A61B17/8875 Primary

  Screwdrivers, spanners or wrenches · CPC title

• A61B17/8033

  having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers · CPC title

• A61B17/80 Primary

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title