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Endoscope

An endoscope and lens technology, applied in the field of endoscope, can solve the problem of separation of illumination and observation light paths

Inactive Publication Date: 2005-12-07
INNER VISION IMAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this exposes the patient to a second surgery, which is disadvantageous
[0007] Another disadvantage of known endoscopes is that the illumination and observation light paths are separated and each light path uses only a part of the available diameter of the endoscope

Method used

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Embodiment Construction

[0030] see first figure 1 , represents a preferred embodiment of the endoscopic device 200 of the present invention. The endoscope 200 includes an elongated endoscope lens tube 202 having a free end 204 and an opposite end secured to a housing 206 . The housing is designed to be manipulated by hand by a surgeon or other medical personnel, although it could optionally be attached to a mechanical stand or robotic arm. An elongated tubular frame 208 is machined to the desired size, is slidably received at the free end 204 of the lens tube 202, and is detachably secured to the housing 206 by a mechanical coupling 207, such as a bayonet coupling. superior. The frame 208 has a transparent window 210 on the free end 204 of the lens tube 202 . The lens tube 202 together with the frame 208 can be inserted through a cannula into the patient 205 while the housing 206 remains outside the patient.

[0031] see now Figure 2-4 , a plurality of optical lenses are arranged in the lens tu...

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PUM

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Abstract

An endoscope assembly is disclosed having a housing adapted to be manipulated by medical personnel, such as a surgeon. An elongated lens tube has one end secured to the housing while an elongated stage is removably secured to the housing so that the stage encompasses and is coaxial with the tube. The stage together with the lens tube are adapted for insertion into the cavity of a body. A lens assembly provided within the lens tube relays the optical image from the free end of the stage to the housing. A lens assembly within the housing, furthermore, varies the magnification of the image between macroscopic magnification and microscopic magnification in which tissue may be examined on a cellular level. For macroscopic magnification, white light is transmitted through the lens tube as well as reflected back from the target tissue through the lens tube and to the housing. For microscopic examination, laser radiation is utilized in lieu of the white light illumination. A line scanning confocal assembly contained within the housing enables microscopic examination of the target tissue at varying levels into the tissue from the end of the stage.

Description

technical field [0001] The present invention relates generally to medical instruments, and more specifically to an endoscope. Background technique [0002] Laparoscopic surgery has gained increasing acceptance, especially for surgeries involving the abdominal cavity. In this surgery, one or more incisions are made through the patient's skin. Thereafter, various medical instruments including an endoscope are inserted through the incision into a body cavity such as the abdominal cavity. [0003] In order for the surgeon to examine the abdominal cavity, the general surgeon uses an endoscope, which is inserted into the abdominal cavity through a cannula. Known endoscopes generally include an elongated tube with one or more fixed lenses. These lenses provide an optical image of the interior of the body cavity to an eyepiece or other display device, allowing a surgeon outside the body to see the interior of the body cavity. Illumination of the endoscope is typically provided b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B1/00A61B5/00G02B23/24H04N5/225
CPCA61B2562/146A61B5/0002A61B5/0068G02B23/2438A61B5/0084A61B1/00188A61B1/00135G02B23/2446A61B1/00
Inventor 理查德·法卡斯理查德·费希尔史蒂文·亨克
Owner INNER VISION IMAGING
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