US 12,226,083 B2
Holder and surgical instrument assembly for intervertebral foramen endoscope fusion
Zhenzhou Li, Beijing (CN); Guoping Fan, Beijing (CN); Xiyi Huang, Beijing (CN); Yuanzhi Xu, Beijing (CN); and Yaling Wang, Beijing (CN)
Assigned to BEIJING FULE SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD, Beijing (CN)
Appl. No. 17/417,600
Filed by BEIJING FULE SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD., Beijing (CN)
PCT Filed Mar. 25, 2020, PCT No. PCT/CN2020/081038
§ 371(c)(1), (2) Date Jun. 23, 2021,
PCT Pub. No. WO2021/184402, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010190792.9 (CN), filed on Mar. 18, 2020; and application No. 202020341444.2 (CN), filed on Mar. 18, 2020.
Prior Publication US 2022/0330809 A1, Oct. 20, 2022
Int. Cl. A61F 2/46 (2006.01); A61B 1/317 (2006.01); A61F 2/44 (2006.01)
CPC A61B 1/317 (2013.01) [A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2002/4627 (2013.01); A61F 2002/4629 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A holder for intervertebral foramen endoscope fusion, comprising an inner rod, an anti-torsion sleeve and an outer sleeve which are sleeved from inside to outside and are movable relatively along an axial direction; wherein
the inner rod is configured for pushing the an expanding part inside a fusion cage;
a head end of the anti-torsion sleeve is provided with an external thread section, the external thread section is configured for matching and connecting with a screw plug mounting hole of a holding body of the fusion cage, and a tail end of the anti-torsion sleeve is provided with a matching structure for matching with a bone grafting funnel;
a head end of the outer sleeve is matched with the holding body of the fusion cage to restrict the rotation of the fusion cage along an axis of the fusion cage;
the inner rod comprises a straight rod and a first handle connected to a tail end of the straight rod. wherein the straight rod is sleeved in the anti-torsion sleeve and the straight rod comprises a first thread section for threaded connection with the anti-torsion sleeve, and the first handle is located outside the anti-torsion sleeve; and
the straight rod comprises a first scale rod section, wherein the first scale rod section is close to a side of the first handle and exposed outside the anti-torsion sleeve the first scale rod section is provided with scale values for marking a depth of the straight rod entering the anti-torsion sleeve, and the holder further comprises a first limit assembly, which is slidable or lockable relative to the first scale rod section, and configured to limit an axial position of the straight rod.