Granted Patent B2

US 12,427,028 · App. 18/066,872 · Granted Sep 30, 2025

Inventors: Derek P. Lindsey (San Jose, CA); Paul Sand (Redwood City, CA); Bret W. Schneider (San Jose, CA); Scott A. Yerby (Montara, CA); Nikolas F. Kerr (Milpitas, CA); Regina Macbarb (Carlsbad, CA)

Assignee: SI-Bone Inc.

A61F2/30988A61B17/80A61F2/28A61F2/30A61F2/4603A61F2002/2835A61F2002/30011A61F2002/30156A61F2002/30289A61F2002/30405A61F2002/30622A61F2002/30784A61F2002/30858A61F2002/30868A61F2002/30995

Abstract

Claims (26)

1. An elongated threaded implant sized and configured for implantation in a sacroiliac joint of a patient, comprising:

an internal support extending axially from a proximal end of the threaded implant to a distal end of the implant;

an external thread extending radially outward relative to the internal support and extending axially along a length of the implant; and

a porous infill disposed in a helical configuration about an implant axis between the external thread such that the porous infill forms a root diameter of the external thread,

the porous infill comprising a plurality of pores sized to provide for one or more of bony on-growth, ingrowth or through-growth,

the porous infill comprising a plurality of breaks in the helical configuration,

wherein the plurality of breaks are in a helical configuration that is different than the helical configuration of the porous infill between the external thread,

wherein a path defined by the helical configuration of the plurality of breaks is void of the porous infill,

wherein the path has a pitch that is at least eight times a pitch of the helical configuration of the porous infill between the external thread, and

wherein the internal support, the external thread, and the helically configured porous infill are manufactured from the same material, and are manufactured together, along with the helically configured plurality of breaks in the porous infill, during the same additive manufacturing process.

2. The threaded implant of claim 1 , wherein the helically configured porous infill comprises a plurality of connected segments.

3. The threaded implant of claim 1 , further comprising a through bore extending along a central axis of the threaded implant.

4. The threaded implant of claim 1 , wherein the helically configured porous infill is at least 20% more porous than the external thread.

5. An elongated threaded implant sized and configured for implantation in a sacroiliac joint of a patient, comprising:

an internal support extending axially from a proximal end of the threaded implant to a distal end of the implant;

an external thread extending radially outward relative to the internal support and extending axially along a length of the implant; and

a scaffolding disposed in a helical configuration about an implant axis between the external thread such that the scaffolding forms a root diameter of the external thread,

the scaffolding comprising a plurality of pores sized to provide for one or more of bony on-growth, ingrowth or through-growth,

the scaffolding comprising a plurality of breaks in the helical configuration,

wherein the plurality of breaks are in a helical configuration that is different than the helical configuration of the scaffolding between the external thread,

wherein a path defined by the helical configuration of the plurality of breaks is void of the scaffolding,

wherein the path has a pitch that is at least eight times a pitch of the helical configuration of the scaffolding between the external thread, and

wherein the internal support, the external thread, and the helically configured scaffolding are manufactured from the same material, and are manufactured together, along with the helically configured plurality of breaks in the scaffolding, during the same additive manufacturing process.

6. The threaded implant of claim 5 , wherein the helically configured scaffolding comprises a plurality of connected segments.

7. The threaded implant of claim 5 , further comprising a through bore extending along a central axis of the threaded implant.

8. The threaded implant of claim 5 , wherein the helically configured scaffolding is at least 20% more porous than the external thread.

Assignments (1)

Continuity (3)

References Cited (400)