Angle adjustable surgical reference frame

Abstract

The application discloses an angle-adjustable surgical reference frame for surgical reference positioning. The angle-adjustable surgical reference frame comprises a fixed needle set, a reference frame body, a locking assembly and an adjusting assembly. The first needle body and the second needle body of the fixed needle set are used for connecting the disease part of a patient. The locking assembly has a base and a lock seat, the base is provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part can move relative to each other, so that the first connecting part is connected to the first needle body and the second connecting part is connected to the second needle body. The lock seat can move towards the base to lock the first connecting part and the second connecting part. The third connecting part of the adjusting assembly can be selectively connected to the first connecting structure or the second connecting structure of the locking assembly, so that the reference frame body has a first arrangement angle position or a second arrangement angle position relative to the fixed needle set. The scheme can improve the convenience of the installation and use of the reference frame, and avoid the interference of instruments and the shielding of positioning and the like.

Claims

1. An angle adjustable surgical reference frame for use in reference positioning during surgery on a patient, characterized by The angle-adjustable surgical reference frame includes: A fixed needle assembly includes a first needle body and a second needle body arranged at intervals, both of which are used to connect to the patient's lesion site; The reference frame body includes a base frame and a plurality of tracers connected to each other, wherein each tracer is arranged at intervals and is located on one side of the base frame; A locking assembly has a base and a locking seat that cooperate with each other. The base is provided with a first connecting part and a second connecting part, which are rotatable relative to each other so that the first connecting part is connected to the first needle body and the second connecting part is connected to the second needle body. The locking seat is configured to move toward the base to lock the first connecting part and the second connecting part. An adjustment assembly is connected to the reference frame body. The adjustment assembly includes a third connecting part. The locking assembly has a first connecting structure and a second connecting structure arranged at intervals. The third connecting part can be selectively connected to the first connecting structure or the second connecting structure so that the reference frame body has a first arrangement angle position or a second arrangement angle position relative to the fixed pin group. The first connecting part includes a movable block, the movable block is provided with a first hole structure, the base is provided with a movable groove, the movable block is at least partially inserted into the movable groove and can rotate relative to the second connecting part within the movable groove, so that the first needle body is inserted into the first hole structure; The locking assembly includes a pressure block located between the base and the lock seat. The two ends of the movable block are rotatably connected to the pressure block and the base, respectively. During the movement of the lock seat toward the base, the pressure block can press the movable block to lock the first needle body. The first connecting structure includes a first slot, the second connecting structure includes a second slot, the locking component includes a chuck, the first slot and the second slot are arranged circumferentially on the chuck, the chuck is also provided with a main shaft, and the third connecting part includes a first sub-shaft; The adjustment assembly includes a mounting base, and the two ends of the main shaft are respectively connected to the base and the mounting base. At the first arrangement angle position, the first secondary shaft passes through and is engaged in the first slot. At the second arrangement angle position, the first secondary shaft passes through and is engaged in the second slot.

2. The angle-adjustable surgical reference frame as described in claim 1, characterized in that, The second connecting part includes a second hole structure, which is integrally connected to the base, and the second needle is adapted to be inserted into the second hole structure.

3. The angle-adjustable surgical reference frame as described in claim 1, characterized in that, The locking seat is provided with a limiting structure on the side facing the base. During the movement of the locking seat toward the base, the second needle body can be at least partially engaged in the limiting structure to lock the second needle body.

4. The angle-adjustable surgical reference frame as described in claim 1, characterized in that, The locking assembly includes a locking member, the base has a first connecting hole, the lock seat has a second connecting hole, the locking member passes through the second connecting hole and is threadedly connected to the first connecting hole, so that the lock seat can move toward the base.

5. The angle-adjustable surgical reference frame as described in claim 4, characterized in that, The spindle has a first end facing the mounting base, the mounting base has a connecting cavity, the first end extends into the connecting cavity, and the adjustment assembly includes a locking block, which at least partially passes through the connecting cavity and is movably connected to the first end. The locking block is configured to have a locked state and an unlocked state relative to the spindle. In the locked state, the locking block is connected to the first end to prevent the first end from disengaging from the connecting cavity. In the unlocked state, the first end is separated from the locking block and can disengage from the connecting cavity.

6. The angle-adjustable surgical reference frame as described in claim 5, characterized in that, The first end is provided with a limiting groove, and the locking block is provided with a limiting protrusion. In the locked state, the limiting protrusion passes through and is engaged with the limiting groove. In the unlocked state, the limiting protrusion disengages from the limiting groove. The locking block is elastically connected to the mounting base. Pressing the locking block allows it to switch from the locked state to the unlocked state.

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