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Reseller of Quality Pre-Owned and Refurbished Medical Equipment We entertain reasonable offer. ZEISS STN System, (Surgical Tool Navigator) with SMN.The STN system (Surgical Tool Navigator) is used as an orientation and navigation aid during surgery. It is particularly suitable for surgical procedures requiring the stereotactic guidance of surgical instruments. The instrument is displayed as a virtual pointer on the workstation monitor screen. In the diagnostic images, the tip of this pointer marks the position of the tip of the instrument in the surgical field. The screen also displays additional information to help the surgeon operate the STN system. A pointer is used for referencing the orientation. The pointer consists of a grip with a tip. A Patient Tracking System system tracks the movements of the patient and takes these movements automatically into account when computing and displaying the screen pointer. A stereotactic surgical planning system, which has been specially adapted to the STN system, is installed on the workstation. This system allows stereotactic surgical planning using diagnostic data (e.g. CT or MRI). The planning data obtained in this way is used by the surgeon during surgery as orientation and navigational aids for the stereotactic guidance of the surgical instruments. To be able to indicate the position of the instrument in the diagnostic image, the coordinate system of the surgical field must be correlated with the internal coordinate system of the instrument. Reference points (markers) adhered to the patient’s skin or screwed into the patient’s bones are used for this purpose. Prominent anatomical structures can also be used as markers, e.g. the spinous process of a vertebra. These reference points are then measured during planning prior to surgery. At the beginning of the surgical procedure, one reference marker after another is probed with the tip of the pointer. A localizer camera receives the encoded infrared signals emitted by the pointer. In this non-contact procedure, the workstation determines the position of the reference marker in space and correlates the diagnostic images with the respective structure in the surgical field. Additional reference points can also be defined during surgery. The STN system is easy to use. All the major functions can be controlled during the operation via a hand control panel which can be covered with a sterile protective sleeve. This permits all the navigation functions to be performed under sterile conditions. The STN system consists of the following modules: Stand for localizer camera. Localizer camera.Workstation screen.DRF Infrared emitter (DRF: Dynamic Reference Frame).Pointer, Keyboard and mouse. Interruption-free power supply for the workstation. Workstation computer,Isolating transformer.Localizer computer.Instrument cart.Control unit. Hand control panel. Toolbox. Make an Offer |
