Implant holder

Patent metadata

Field	Value
Publication number	US-11129689-B2
Application number	US-201916697726-A
Country	US
Kind code	B2
Filing date	Nov 27, 2019
Priority date	Nov 27, 2019
Publication date	Sep 28, 2021
Grant date	Sep 28, 2021

Abstract

Various implant holding systems are provided herein that include an outer tube, an inner tube, and a holder. The implant holding systems can be designed to hold various implants, such as bone anchors used in spinal operations. For example, one embodiment of an implant holding system can have an outer tube, an inner tube that can be disposed within the outer tube, and an implant holder that can be disposed within the inner tube. An individual bone anchor that has various configurations and sizes can be disposed within the holder, and the holder can engage the bone anchor to assist in maintaining an orientation of the bone anchor relative to the holder.

First claim

What is claimed is:

1. An implant holding system, comprising:
an outer tube having a sealed first outer end and an open second outer end, the outer tube having a removable outer cap configured to selectively seal the second outer end;
an inner tube configured to be disposed within the outer tube, the inner tube having a sealed first inner end configured to engage the outer cap of the outer tube, the inner tube having an open second inner end and a removable inner cap configured to selectively seal the second inner end;
a bone anchor having a driver head and a threaded shaft extending distally from the driver head; and
a holder configured to be disposed within the inner tube and having a longitudinal axis, the holder having a receiving head configured to receive the driver head of the bone anchor, the receiving head being configured to engage the driver head of the bone anchor to prevent axial rotation about the longitudinal axis of the holder the holder having a collar extending distally from the receiving head, the collar being configured to engage at least part of the threaded shaft of the bone anchor to maintain an orientation of the threaded shaft of the bone anchor relative to the longitudinal axis of the holder when the bone anchor is received therein, the receiving head having a lumen extending distally through the receiving head and the collar such that the threaded shaft of the bone anchor can pass therethrough.

2. The system of claim 1 , wherein the holder further comprises a break-off tab removably disposed at an end opposite the receiving head, wherein the break-off tab is configured to be removed to change a length of the holder along the longitudinal axis of the holder.

3. The system of claim 1 , wherein the holder has at least two bowed, deformable legs configured to maintain a position of the holder within the inner tube through a frictional engagement between each of the legs and an inner surface of the inner tube.

4. The system of claim 1 , wherein the holder has an alignment panel disposed along a distal portion thereof, and the alignment panel is configured to engage an inner surface of the inner tube to resist axial rotation of the holder about the longitudinal axis of the holder.

5. The system of claim 4 , wherein the alignment panel has a non-circular cross section at a point along the longitudinal axis of the holder.

6. The system of claim 1 , wherein the holder, the outer tube, and the inner tube are configured to allow visualization of the orientation of the threaded shaft of the bone anchor when the bone anchor is received in the holder.

7. The system of claim 1 , wherein the outer tube, the inner tube, and the holder are configured to be coaxial with each other along the longitudinal axis of the holder when the holder is disposed within the inner tube and the inner tube is disposed within the outer tube.

8. An implant holding system, comprising:
an outer tube having a sealed first outer end and an open second outer end, the outer tube having a removable outer cap configured to selectively seal the second outer end;
an inner tube configured to be disposed within the outer tube, the inner tube having a sealed first inner end configured to engage the outer cap of the outer tube, the inner tube having an open second inner end and a removable inner cap configured to selectively seal the second inner end;
a bone anchor having a driver head; and
a holder configured to be disposed within the inner tube, the holder having a longitudinal axis extending between a first holder end configured to engage the inner cap of the inner tube and an open second holder end, and a lumen extending at least partially therethrough from the second holder end towards the first holder end, wherein the lumen is configured to receive at least part of the bone anchor therein, and wherein a plurality of alignment members extend at least partially into the lumen, the plurality of alignment members being configured to engage the bone anchor to maintain an orientation of the bone anchor relative to the longitudinal axis of the holder when the bone anchor is received in the lumen.

9. The system of claim 8 , wherein each of the plurality of alignment members is one of a longitudinal rectangular protrusion, a perpendicular protrusion, a bowed arm, a curved arm, a spiraled arm, and a flexible arm such that a plurality of bone anchors of different lengths and diameters are receivable in the lumen.

10. The system of claim 8 , wherein the holder has one or more break-off portions extending from the open second holder end toward the first holder end configured to be removed to change a length of the holder along the longitudinal axis of the holder.

11. The system of claim 8 , wherein the bone anchor has a threaded shaft extending distally from the driver head, and the plurality of alignment members are arranged extending radially into the lumen to correspond with threads extending radially outward from the threaded shaft.

12. The system of claim 8 , wherein the holder is configured to maintain a rotational position with the inner cap of the inner tube relative to the longitudinal axis of the holder when the holder is engaged thereto.

13. The system of claim 12 , wherein the first holder end has a non-circular cross section at a point along the longitudinal axis of the holder.

14. The system of claim 8 , wherein the holder, the outer tube, and the inner tube are configured to allow visualization of the orientation of the bone anchor when the bone anchor is received in the holder.

15. The system of claim 8 , wherein the outer tube, the inner tube, and the holder are configured to be coaxial with each other along the longitudinal axis of the holder when the holder is disposed within the inner tube and the inner tube is disposed within the outer tube.

16. A surgical method, comprising:
removing a sealed cover from an outer tube, wherein the outer tube houses an inner tube and an implant holder is disposed within the inner tube and a threaded shaft of a bone anchor is held in a first orientation within the implant holder relative to a longitudinal axis of the implant holder through engagement with a receiving head and a collar of the implant holder, wherein an interior of the outer tube, the inner tube, the implant holder, and the bone anchor are sterile;
passing the inner tube into a sterile field without contaminating an exterior surface of the inner tube;
removing a cover from the inner tube within the sterile field; and
retrieving the bone anchor from the implant holder in the inner tube within the sterile field, the threaded shaft of the bone anchor remaining in the first orientation during retrieval through engagement with the receiving head and the collar of the implant holder.

17. The method of claim 16 , further comprising visually inspecting an orientation of the bone anchor through the outer tube, the inner tube, and the implant holder during removing the sealed cover from the outer tube.

18. The method of claim 16 , wherein a driver head of the bone anchor engages a proximal end of the threaded shaft, and the driver head and the threaded shaft of the bone anchor are maintained in the first orientation during removing the sealed cover from the outer tube, passing the inner tube into the sterile field, and removing the cover from the inner tube.

19. The method of claim 16 , wherein the implant holder is configured to hold a plurality of bone anchors of various lengths and diameters in the first orientation.

Assignees

• Medos Int Sarl

Inventors

• Peterson Joseph
• Spratt Frank
• Carlson Kristina
• Maguire Paul
• Biester Eric
• Fournier Rick

Classifications

• A61B17/7082 Primary

  for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws · CPC title

• A61B2090/037

  with a frangible part, e.g. by reduced diameter · CPC title

• A61B17/8886

  holding the screw head · CPC title

• A61B50/30 Primary

  Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments (for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40) · CPC title

• A61B17/84

  Fasteners therefor {or fasteners being internal fixation devices} · CPC title