Detachable skin-outer minimally invasive pedicle screw navigation device in combination with perspective

A technology of pedicle screw and navigation device, applied in the field of medical devices, can solve the problems of difficult fixation, reduce fluoroscopy, and large trauma, and achieve the effects of reducing the possibility of up and down shaking, reducing radiation exposure, and improving stability
CN107260286APending Publication Date: 2017-10-20ZIGONG NO 4 PEOPLES HOSPITAL +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZIGONG NO 4 PEOPLES HOSPITAL
Publication Date
2017-10-20

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Abstract

The invention belongs to the technical field of medical apparatus and instruments, and relates to a detachable skin-outer minimally invasive pedicle screw navigation device in combination with perspective. The navigation device is composed of N single templates (N is greater than or equal to 3), wherein each single template is provided with a left transverse connector and a right transverse connector, the left transverse connector is provided with a clamping block, the right transverse connector is provided with a clamping groove, and in use, the clamping block is inserted into the clamping groove, so that the left transverse connector and the right transverse connector form a whole; each template is further provided with a transverse perspective positioning needle guide hole, selective minimally invasive positioning needle guide holes, spinous process positioning needle guide holes and longitudinal perspective positioning needle guide holes, the transverse perspective positioning needle guide hole allows a transverse perspective guide needle to pass through, the selective minimally invasive positioning needle guide holes allow a positioning guide needle to pass through, the spinous process positioning needle guide holes allow a spinous process perspective positioning needle to pass through, and the longitudinal perspective positioning needle guide holes allow a longitudinal perspective guide needle to pass through. For the detachable skin-outer minimally invasive pedicle screw navigation device, the templates are completely placed outside the body, and the accuracy is improved through the assistance of perspective, so that radiation exposure and trauma of medical staff and patients are reduced.
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Description

technical field

[0001] The invention belongs to the technical field of medical devices, in particular to a detachable extracutaneous minimally invasive pedicle screw navigation device combined with perspective. Background technique

[0002] Thoracolumbar compression and burst fractures are common types of spinal fractures, and the posterior pedicle fixation system is the first choice for dealing with such injuries. Due to the large trauma of traditional open nail placement surgery, the wide range of tissue incision, and the long-term stretching of surrounding tissues during the operation, which affects the postoperative functional recovery of patients, so in recent years, with the development of minimally invasive spinal surgery, through Skin pedicle screw fixation technology has been paid more and more attention. The determination of the pedicle screw entry point and the direction of the screw path during operation is the key to this technology. Pedicle screw placement und...

Claims

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