Detailed instructions for use are in the User's Guide.
[. . . ] This gives the surgeon assurance in knowing that his/her surgery will not be disturbed by a lamp failure. AutoIrisTM: Safety for the patient As magnification increases, the illuminated field diameter decreases: The Leica M525 OH4 features a magnification-controlled illumination diameter, which provides a field of illumination that is just as wide as the field of view. This prevents potential tissue overheating outside of the surgeon's field of observation. BrightCareTM: Light intensity within safe levels, always As working distance decreases, light intensity limit decreases: With the Leica M525 OH4, the working distance controlled light intensity ensures that the light intensity does not surpass safety levels, especially when working with short distances.
low magnification large field of view large illumination spot
high magnification small field of view small illumination spot
As magnification increases, the illumination field decreases.
BrightCareTM
high
Light output low 207mm 290mm 350mm Working distance
max. [. . . ] Taking control Fast, precise control over all of the stand's functions, the microscope, and the accessories is vital in the operating room. The Leica M525 OH4 features a new generation touch screen with intuitive graphical user interface.
Leica's new graphical user interface and hard keys for illumination control and auto-balancing.
Push button intraoperative re-balancing.
Integrated digital video
OpenArchitectureTM The selection of video options changes continuously. The Leica M525 OH4 is an open architecture system that adapts to the newest video innovations. The Leica MDRS4 digital video recording system is integrated with the Leica M525 OH4 floor stand for easy accessibility.
Leica MDRS4 digital video system.
Leica Zoom Video Adapter.
Built-in video monitor integrated to the floor stand The Leica M525 OH4 features a built-in, flexible video monitor arm, which features a 3-rotation axis and an inclination axis to best position the large monitor (optional) into the perfect position. Since the monitor is built into the stand, it is very flexible and can be re-positioned easily to provide an unobstructed view of the video monitor. Also, all functions of the integrated Leica MDRS4 digital video recording system can be conveniently and directly controlled via the optional, large video touchscreen.
OpenArchitectureTM
OpenArchitectureTM for IGS Integration The Leica DI C500 allows the surgeon to input data from any external source such as MRI, CT, IGS, and endoscopes. With an IGS computer the CT or MRI can be fully correlated to the image in either eyepiece. The fully correlated image can be laid over the actual image or a shutter can be used, which allows the actual image in one eyepiece and the fully correlated image in the other eyepiece.
In combination with the tool tracking capabilities of an IGS system the optical axis and focal plane of the microscope follows in any lateral direction the tip of a navigated tool. The Leica DI C500 Dual Imaging Module handles more data formats than ever before.
Neuro-endoscopy images Non-correlated images such as endoscope images can be projected with the highest resolution and contrast available in the marketplace today. With the Leica DI C500, the surgeon can view the endoscopy image in whichever microscope eyepiece he or she chooses.
The Leica M525 OH4 can be easily used for neuro-endoscopy applications.
Tool tracking In combination with the tool tracking capabilities of an IGS system, the Leica M525 OH4 microscope can track an instrument in the X, Y, and focus axis. Move the instrument and the microscope follows without the surgeon touching the handle grips.
Integrated fluorescence
Neurovascular Fluorescence The study of fluorescence microscopy has a long tradition at Leica, dating back to the beginning of the 20th century. An indispensable component of biological research, fluorescence science is now integrated with the technology of the surgical microscope to provide state-of-the-art neurovascular fluorescence.
The Leica FL400*
The Leica FL400 enables fluorescence guided tumor resection for the surgeon.
Malignant glioma, white light mode.
Malignant glioma, blue light mode.
The Leica FL800*
ICG injection after 2 seconds: Arterial view
ICG injection after 5 seconds: Capillary view
ICG injection after 9 seconds: Venous view
The surgeon sees not just vessels, but the blood flow through vessels with the Leica FL800. The Leica FL800 has recieved US FDA 510 (k) clearance in October 2006.
* Please check the status of Leica FL400 and Leica FL800 regulatory approval with your local Leica representative.
Superior safety and security
Trusted reliability Leica utilizes superior materials and design technologies, and manufactures to the highest quality standards for long service life and outstanding reliability. Leica's M525 OH4 full metal construction is designed to withstand intensive use in the operating room, remain precise throughout its life and maintain its value. Smart engineering and special vibration-dissipating materials further support the stable, extra long swing arm. Leica's OH series has proven to be consistently reliable.
Typical structure of a metal powder (Ag) produced via inert gas condensation (nano powder).
Full metal construction.
AgProtectTM: Leica's Anti-microbial coating for added safety Leica's new, antimicrobial nano silver coating, AgProtectTM, provides outstanding protection to microscope users by reducing exposure to surface pathogens. Leica's new AgProtectTM covers the microscope's outside surfaces and protects the operator and other individuals in the work area by penetrating the membranes of microbes to prevent replication. Leica Microsystems contributes added safety for its customers, medical teams and their patients through AgProtectTM.
Motorized inclination and tilt
In addition to the electro-magnetic controlled free-floating six axes, the Leica M525 OH4 has robotic functions on two axes (X/Y) to allow further movement precision. [. . . ] Mouth switch for releasing the user defined brakes, 12-function foot control, and hand switch Prepared for integration of video- and digital recording systems. Open architecture Numerous built-in connectors for video, IGS, and control data transfer Internal power 12 VDC, 19 VDC, and AC connections 700mm long, flexible arm with 4 axes for the rotation and inclination required to carry optional video monitor All solid metal construction Coated with antimicrobial paint In parked position 1945mm Max. 320kg without load +10°C to +40°C (+50°F to +104°F), 30% to 95% rel. humidity, 500mbar to 1060mbar atmospheric pressure 40°C to +70°C (40°F to +158°F), 10% to 100% rel. [. . . ]