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Nguồn sáng huỳnh quang vi phẫu Leica FL800

Tình trạng: Liên hệ
With the Leica FL800, for intra-operative fluorescence-aided videoangiography, surgeons can now determine the patency of vessels and improve the patient's quality of life.
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Intra-Operative Fluorescence-Guided Blood Flow View 820 nm/NIR Leica FL800


A ruptured cerebral aneurysm is the third most common cause of death in industrial countries.


With the Leica FL800, for intra-operative fluorescence-aided videoangiography, surgeons can now determine the patency of vessels and improve the patient's quality of life.


During surgery, the patient is injected intravenously with ICG (indocyanine green) dye, which is well tolerated and spreads quickly. A near infrared camera then shows the bloodstream in black-and-white directly through the surgical microscope eyepieces and/or on a video monitor.



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 Leica FL800



Your Advantages


See blood flow intra-operatively

The Leica FL800 fluorescence module enables the surgeon to observe blood flow through the microscope eyepieces or on the video monitor in real time, without additional measuring apparatus. It is a fast, easy method of checking during surgery whether the aneurysm has been perfectly clipped and whether blood flow is properly flowing through the bypass.

Simple and fast

To change from white light to NIR mode, the surgeon simply pushes a button found on the hand grip of the surgical microscope. Operating the Leica FL800 thus perfectly blends into the surgical workflow. It is simple and fast, this being a main criteria in cerebral aneurysm surgery

Flexible Viewing

Using the Leica FL800 in combination with a digital imaging color module (Leica DI C500 or Leica DI C700) enables the surgeon to display the ICG fluorescence image into the eyepiece. The surgeon can choose how to view the collected data.

Picture in Picture Function

The Leica FL800 combined with the Leica NIR Dual Video Adapter and the MedXchange HDMD® recording system provides the "picture-in-picture" function, which enables re-visualization of preceding recorded tracks for easier intra-operative decision making.

Clinical Applications

The Leica FL800 can be used for the assessment of blood flow as a result of cerebral aneurysms, arteriovenous malformations (AVM) and bypass procedures.

  • Đánh giá sản phẩm:

(Xem mã khác)

Serial flow through the brain: post-injection bolus

Using the Leica FL800, ICG can be imaged in three stages as it flows through a human brain. Without pseudo-coloring, the images appear in black and white.


Components required with the Leica FL800 module

The image shows all components as they would appear in the ICG fluorescence surgical microscope Leica M720 (image) and Leica M525 OH4/F50

- Infrared & white light switching video
- Leica NIR Dual Video Adapter (DVA)
- Observation filter
- Video switchboard illumination filter unit
- Illumination module
- Protective glass


Observation modes: ICG-fluorescence

There are three alterations which allow the fluorescent operating microscopes to function:

1. Excitation light – The surgical microscope light source must be altered from normally filtered light to allow excitation light. When the fluorescent operating microscope is activated, the filters are changed on a motorized wheel inside the xenon light source to expand the light from 700 to 800 n. This additional NIR energy allows the injected ICG combined with albumin to be excited and fluoresce.
2. Seeing ICG fluorescence – A special black and white high-sensitivity NIR camera and special 820-860 nm filter is now enganged to see the fluorescence which is invisible to the surgeon's eye.
3. Recording software – As blood flow is a dynamic event and the ICG flow will last only approx. 15 seconds, it is important to be able to easily play back images and play back in slow motion. The vascular fluorescence look can easily be played back with a single touch of look button.


Leica FL800 on surgical microscope Leica M720 OH5


Leica FL800 on surgical microscope Leica M525 OH4


Fluorescence Video

The video shows Leica Microsystems‘ Intraoperative Vascular and Oncological Fluorescence Accessories, the Leica FL800 and Leica FL400. Dr. Massimo Collice (†2009) of Niguarda Hospital, Milan, Italy, explains the benefits the Leica FL800 in angiography, and Dr. Karin van Leyen, Neurosurgical consultant with Kantonspital St. Gallen, Switzerland, elaborates on the use of Gliolan (5-ALA) with the Leica FL400.