US 12,274,629 B2
Bone fragment collector and processor
Patrick Eoin Cushen, County Cork (IE); Johannes Jacobus Jacobs, Cork (IE); and Garrett Daly, Cork (IE)
Assigned to Stryker European Operations Limited, Carrigtwohill (IE)
Appl. No. 17/757,512
Filed by Stryker European Operations Limited, Carrigtwohill (IE)
PCT Filed Dec. 15, 2020, PCT No. PCT/IB2020/061983
§ 371(c)(1), (2) Date Jun. 16, 2022,
PCT Pub. No. WO2021/124117, PCT Pub. Date Jun. 24, 2021.
Claims priority of provisional application 62/949,863, filed on Dec. 18, 2019.
Prior Publication US 2023/0018045 A1, Jan. 19, 2023
Int. Cl. A61F 2/46 (2006.01); A61M 1/00 (2006.01)
CPC A61F 2/4644 (2013.01) [A61M 1/79 (2021.05); A61F 2002/4649 (2013.01); A61F 2002/4685 (2013.01); A61M 2210/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for collecting and processing bone fragments, said device comprising:
a housing including a distal end, a proximal end, and an outer wall having an inner surface extending between said distal and proximal ends;
a filter element at least partially disposed within said housing, said filter element having:
a first end;
a second end, said first end positioned closer to said distal end of said housing than said second end;
a sidewall joining said first end and said second end, said sidewall defining an inner peripheral surface and an outer peripheral surface, said sidewall having a plurality of filter apertures therein, wherein said inner peripheral surface of said sidewall at least partially defines a collection chamber for collection of a composition comprising bone fragments, and said outer peripheral surface of said sidewall and said inner surface of said outer wall are spaced apart from one another to define an exterior radial volume; and
a proximal portion adjacent said second end which defines at least one drain aperture;
a piston including:
a piston element having a front face and a back surface; and
a plunger mount opposite said piston element and having a radial protrusion,
said piston moveably disposed within said filter element and movable between a first and a second position, wherein in said first position:
said front face of said piston element at least partially defines said collection chamber;
said back surface, said plunger mount, and said inner peripheral surface of said proximal portion of said sidewall define an interior radial volume; and
said front face is within said filter element and spaced distally relative to said second end of said filter element and said at least one drain aperture places said exterior radial volume and said interior radial volume in fluid communication;
an intake port configured to be coupled to a surgical tool and receive said composition comprising bone fragments; and
a vacuum port configured to be coupled to a vacuum source;
wherein said interior radial volume provides a supplementary fluid communication path through said at least one drain aperture.