Patent ID: 11938041
Assignee: SHANGHAI SANYOU MEDICAL CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A passage establishment device for posterior spinal fusion minimally invasive surgery, wherein a front end of the passage establishment device extends into a spine, wherein the device comprises:
a tube (600), wherein an interior of the tube (600) includes a through hole (601) penetrating both axial ends of the tube (600), and a wall of the tube (600) includes an opening portion (610);
wherein a plurality of elongate holes (640) is formed on the wall at a front part of the tube (600);
wherein the tube (600) comprises two tube body side portions (602) opposite to each other,
wherein the two tube body side portions (602) are connected by a tube body connecting portion (603) at one side,
wherein an interval between the two tube side portions (602) at the other side forms the opening portion (610); and
wherein the tube body connecting portion (603) and each of the two tube body side portions (602) include at least one of the plurality of elongate holes (640), respectively.