31 results about "Spinal tumor" patented technology

The invention relates to a movable three-dimensional rocker arc-shaped guide spinal puncture assistor, which comprises a ground movable support part, a three-dimensional rocker regulating part and an arc-shaped angle guide puncture part, wherein bottom feet of the ground movable support part are rolling wheels with brakes; a vertical rod which is sleeved by a round tube and is used for maintaining the integral balance is arranged above the ground movable support part; the three-dimensional rocker regulating part is of a three-dimensional regulating structure consisting of three rockers with screw threads and three extension rods, and also comprises a horizontal calibrator and a horizontal locking spanner; the arc-shaped angle guide puncture part comprises a 1 / 4 circular-arc rail with an angle, a rocker, two infrared fixed point instruments, a guide rod and a needle guide device; the rocker can realize 360-degree vertical rotation through regulating the circular-arc rail; the guide rail slides along the circular-arc rail; and the needle guide device can be dismounted for disinfection. The movable three-dimensional rocker arc-shaped guide spinal puncture assistor has the advantages that the puncture accuracy is high; the perspective time is short; the number of perspective times is small; the quantity of X-ray radiation received by medical care personnel and patients is low; the needle guide device can be disinfected and repeatedly used; and high molecular materials are radiotransparent, and the like. Therefore the movable three-dimensional rocker arc-shaped guide spinal puncture assistor can be widely applied to spinal surgeries such as intervertebral aperture mirror positioning puncture, epidural anesthesia, spinal tumor biopsy and spinal abscess puncture drainage.

The invention discloses a multi-needle guide system for spinal radio-frequency ablation puncture. The system comprises puncture needles and a guide; each puncture needle comprises a puncture portion at the front end of a needle head and a guide portion at the rear portion of the needle head; each puncture needle is at least internally provided with parallel passages, and each puncture needle is further provided with a plurality of oblique passages; the oblique passages penetrate between the puncture portion and the guide portion of the corresponding puncture needle and are different from the corresponding puncture needle in inclination angle, and the front end of each oblique passage is positioned on the same side of the corresponding puncture portion; the guide comprises a connection portion and a guide arm. By the aid of the multi-needle guide system, imbedding directions of the radio-frequency electrode needles can be guided accurately, precision multi-needle guided puncture for ablation of spinal tumors is realized, the radio-frequency electrode needles are enabled to reach preset spinal portions according to designed angles and to be uniformly distributed at different spinal positions to completely cover a whole spinal structure, and consequently treatment effectiveness is greatly improved.

The invention relates to a method for making a thoracolumbar vertebra deformity posterior individualized osteotomy navigation template. The method is characterized by comprising the following steps: reconstructing a three-dimensional model of whole spine and pelvis based on a medical image; performing a simulate operation on the three-dimensional model; simulating osteotomy to recover normal physiological curvature of the spine; and making an osteotomy template according to the osteotomy position and size of the simulate operation; and printing the osteotomy template by 3D printing. The osteotomy template is individualized; in the operation, the subjectivity in selecting the osteotomy position and size and the repeated operation perspective and the like are avoided; the method is suitable for the kyphosis orthopaedics of old thoracolumbar vertebra fracture, orthopaedics of spinal tumor, osteotomy orthopaedics of ankylosing spondylitis and the like; and moreover, the operation is easy, the requirements on doctors are relatively low, the operation risk is lowered, the operation efficiency is increased, and the operation cost is reduced.