Surgical array stabilizers, and related systems and methods

Patent metadata

Field	Value
Publication number	US-12440225-B2
Application number	US-202217819954-A
Country	US
Kind code	B2
Filing date	Aug 16, 2022
Priority date	Aug 16, 2021
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

An array stabilizer for a surgical system includes a pair of arms configured to extend alongside opposite sides of a portion of an array adapter, which is attachable to a rotational instrument in a manner such that the rotational instrument is rotatable about a central axis relative to the array adapter. The array adapter is configured to extend from another component of the surgical system, such that at least one of the arms of the array adapter is configured to resist rotation of the array adapter about the central axis relative to such component as the rotational instrument rotates. The array stabilizer is either rigidly integrated with such component or is coupled to such component via a coupling device.

First claim

What is claimed:

1. A surgical system, comprising:
a rotational instrument extending along a central axis oriented along a longitudinal direction, the rotational instrument having a proximal end and a distal end, wherein the proximal end is spaced from the distal end in a proximal direction oriented along the longitudinal direction;
an array adapter attachable to the rotational instrument at a location spaced from the distal end in the proximal direction, wherein the array adapter is configured so that, when attached to the rotational instrument, the rotational instrument is rotatable about the central axis relative to the array adapter, the array adapter configured to carry an array; and
a guide member defining a cannulation configured to receive a portion of the rotational instrument, wherein the guide member includes a pair of integrated stabilizer arms extending from respective attachment ends to respective free ends spaced from the attachment ends in the proximal direction, the pair of integrated stabilizer arms configured to extend alongside opposite sides of a portion of the array adapter, wherein at least one of the stabilizer arms is configured to resist rotation of the array adapter relative to the guide member about the central axis.

2. The surgical system of claim 1 , wherein the guide member comprises a sleeve that defines the cannulation.

3. The surgical system of claim 2 , wherein the guide member further comprises a handle member extending outwardly from the sleeve.

4. The surgical system of claim 1 , wherein the pair of integrated stabilizer arms are monolithic with the guide member.

5. The surgical system of claim 1 , wherein the pair of integrated stabilizer arms are rigidly joined with the guide member.

6. The surgical system of claim 5 , wherein the pair of integrated stabilizer arms extend from an extension member that is welded to the guide member.

7. The surgical system of claim 1 , wherein the portion of the array adapter comprises a post for connecting the array adapter with the array, wherein a width of the post in a second direction is substantially equivalent to a distance between the pair of integrated stabilizer arms in the second direction, such that the post is snugly received between the pair of integrated stabilizer arms, wherein the second direction is substantially perpendicular to the longitudinal direction.

8. The surgical system of claim 7 , wherein the post extends from the array adapter along a third direction that is substantially perpendicular to the second direction and offset from the longitudinal direction.

9. The surgical system of claim 8 , wherein the array comprises a plurality of reference markers arranged in a pattern such that the plurality of reference markers are coplanar with each other.

10. The surgical system of claim 1 , wherein the free ends of the pair of integrated stabilizer arms flare away from each other.

11. The surgical system of claim 1 , wherein at least respective portions of the pair of integrated stabilizer arms extend at a sloped angle relative to the central axis.

12. The surgical system of claim 1 , wherein the rotational instrument is a drill bit configured to drill a hole in a target region of bone.

13. The surgical system of claim 1 , wherein the rotational instrument is one of a tap, an awl, an awl tap, a reamer, and a screw driver.

14. A surgical system, comprising:
a rotational instrument extending along a central axis oriented along a longitudinal direction, the rotational instrument having a proximal end and a distal end, wherein the proximal end is spaced from the distal end in a proximal direction oriented along the longitudinal direction;
an array adapter attachable to the rotational instrument at a location spaced from the distal end in the proximal direction, wherein the array adapter is configured so that, when attached to the rotational instrument, the rotational instrument is rotatable about the central axis relative to the array adapter, the array adapter configured to carry an array; and
a guide member defining a cannulation configured to receive a portion of the rotational instrument, wherein the guide member includes a pair of integrated stabilizer arms extending from respective attachment ends to respective free ends spaced from the attachment ends in the proximal direction, the pair of integrated stabilizer arms configured to extend alongside opposite sides of a portion of the array adapter, wherein at least one of the stabilizer arms is configured to resist rotation of the array adapter relative to the guide member about the central axis,
wherein the portion of the array adapter comprises a post for connecting the array adapter with the array, wherein a width of the post in a second direction is substantially equivalent to a distance between the pair of integrated stabilizer arms in the second direction, such that the post is snugly received between the pair of integrated stabilizer arms, wherein the second direction is substantially perpendicular to the longitudinal direction,
wherein the pair of integrated stabilizer arms define respective first portions and respective second portions, the first portions are located between the attachment ends and the second portions, the distance is a first distance that is substantially constant along the first portions, and the pair of integrated stabilizer arms define a second distance measured between the second portions along the second direction, and the second distance is less than the first distance, such that:
the post flexes the second portions away from each other as the post is inserted between the pair of integrated stabilizer arms, and
the second portions flex inwardly toward each other after the post has moved alongside the first portions, thereby resisting back-out of the post from between the pair of integrated stabilizer arms.

15. A surgical system, comprising:
a rotational instrument extending along a central axis oriented along a longitudinal direction, the rotational instrument having a proximal end and a distal end spaced from the proximal end in a distal direction along the longitudinal direction, the proximal end configured to be rotationally driven about the central axis by a powered tool;
an array adapter attachable to the rotational instrument, wherein the array adapter is configured so that, when attached to the rotational instrument, the rotational instrument is rotatable about the central axis relative to the array adapter, the array adapter configured to carry an array;
a guide member defining a cannulation configured to receive a portion of the rotational instrument, the guide member including
a pair of stabilizer arms configured to extend alongside opposite sides of a portion of the array adapter, wherein at least one of the stabilizer arms is configured to resist rotation of the array adapter about the central axis relative to the guide member,
wherein the pair of stabilizer arms have opposed inner surfaces that define a slot between the pair of stabilizer arms, the slot extending along the longitudinal direction, wherein the guide member is configured such that the portion of the array adapter and the rotational instrument are translatable along the slot in the distal direction relative to the guide member as the rotational instrument is rotatably driven.

16. The surgical system of claim 15 , wherein the inner surfaces of the pair of stabilizer arms are parallel with each other, thereby guiding the portion of the array adapter to translate along within the slot along the longitudinal direction.

17. The surg

Assignees

• Medos Int Sarl

Inventors

• Elsawah Lamis
• Miller William
• Sorrenti Michael
• Cromer Christopher
• Biester Eric
• Howell Vanessa

Classifications

• A61B2090/3983

  Reference marker arrangements for use with image guided surgery · CPC title

• A61B17/1615

  Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material · CPC title

• A61B2017/00486

  Adaptors for coupling parts with incompatible geometries · CPC title

• A61B17/1703

  using imaging means, e.g. by X-rays · CPC title

• A61B2034/2072

  Reference field transducer attached to an instrument or patient · CPC title