Three-dimensional endoscope and three-dimensional imaging method

A three-dimensional imaging and endoscopy technology, which is applied in the fields of endoscopy, medical science, surgery, etc., can solve the problems that the mirror tube cannot be converted according to the doctor's wishes, increases the doctor's workload, and hinders simultaneous operations, etc.

Inactive Publication Date: 2015-08-05
南京三维视嘉科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Images may overlap with other tools, making it difficult for physicians to gain a sense of internal 3D depth from existing 2D images
[0010] (2) Continuous occupancy of the wound: In the surgical examination, the conventional laparoscopic endoscope always occupies an important position of the wound, which hinders the simultaneous operation of other instruments on the same wound
[0012] (4) Angle of view is limited: the endoscope in LNR only passes through one channel, which will produce an unfamiliar angle of view, especially in NOTES, and the mirror tube cannot be converted to any angle accor

Method used

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Experimental program
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no. 1 approach

[0039] see figure 1 Shown is a structural view of the first embodiment of the three-dimensional endoscope of the present invention.

[0040] In this embodiment, the three-dimensional endoscope includes an imaging unit 100 and a control unit 105 .

[0041] The imaging unit 100 includes a housing 103 , and an imaging sensor array and an illumination device 101 located in the housing 103 . The imaging sensor array includes a plurality of imaging sensors 102 for acquiring a two-dimensional image of a target object 108 under illumination provided by an illumination device.

[0042] The control unit 105 is configured to synthesize a three-dimensional image of the target object based on the two-dimensional images of the target object 108 collected by each imaging sensor 102 .

[0043] In use, the imaging unit 100 may be placed inside the patient's body (eg, intraperitoneally), while the control unit 105 may be placed outside the patient's body.

[0044] see figure 2 Shown is a s...

no. 2 approach

[0060] see image 3 Shown is a three-dimensional endoscope according to the second embodiment of the present invention.

[0061] In this embodiment, the lighting device 101 includes a structured light projection unit 110 .

[0062] The structured light projection unit 110 is used to generate a structured texture on the surface of the target object. Each imaging sensor 102 in the imaging sensor array is used to capture a two-dimensional image of the structured texture and transmit it to the control unit 105 . The control unit 105 performs three-dimensional reconstruction of the target object based on the plurality of two-dimensional images of structured textures.

[0063] exist image 3 , the structured light projection unit 110 generates a spatially varying structured texture 111 on the surface of the target 108 . Structured light is a well-known technique for imaging 3D surfaces. In the present invention, we apply the structured lighting technique to 3D endoscopy.

[00...

no. 3 approach

[0073] see Image 6 As shown, in this embodiment, the imaging sensor array includes a plurality of imaging sensors ( 302 - 305 ) with different spectral characteristics and polarization characteristics.

[0074] For multiple imaging sensors of the light field 3D endoscope, some sensors can be configured to acquire images in different wavelength bands and different polarization directions. For example, by adding a narrow-band filter, one or more imaging sensors can only capture light within a certain spectral range, thereby enhancing the imaging contrast (signal-to-noise ratio). Polarized imaging acquisition can suppress the impact of surface reflection on image quality.

[0075] Spectral imaging and polarization imaging are completely independent imaging methods. The two can be used simultaneously or independently according to specific application requirements.

[0076] Image 6 The illustrated imaging sensor array 301 has eight optical channels, each with its own unique s...

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Abstract

The invention relates to a three-dimensional endoscope and a three-dimensional imaging method. The three-dimensional endoscope comprises an imaging unit and a control unit. The imaging unit has a housing, an imaging sensor array positioned in the housing and an illuminating device. The imaging sensor array comprises a plurality of imaging sensors used for acquiring two-dimensional images of target objects under illumination provided by an illumination device. The control unit is used for synthesizing three-dimensional images of the target objects based on the two-dimensional images of the target objects acquired by all the imaging sensors. Through adoption of the three-dimensional endoscope and the three-dimensional imaging method of the invention, problems of narrow view fields and rotation view angles widely existing in current laparoscopes can be eliminated so as to obtain a full-field-of-view (FOV) surgery scene which has an appropriate view and which is not shielded.

Description

[0001] This application claims the priority of the application with the application number US61901279 and the title "Intra-Abdominal Lightfield 3D camera and Method of Making the Same" submitted on November 7, 2013. technical field [0002] The invention relates to a three-dimensional imaging technology, in particular to a three-dimensional endoscope and a three-dimensional imaging method. Background technique [0003] Compared with traditional surgery, minimally invasive surgery (MIS) inserts medical devices into the human body through natural openings or small skin incisions to diagnose, treat, and repair a wide range of medical lesions in the human body. In the past two decades, minimally invasive surgery has gradually replaced the preeminence of general surgery. It can reduce surgical complications, accelerate postoperative recovery, improve patient satisfaction, and reduce postoperative pain. [0004] In order to break through the technical bottleneck of minimally invas...

Claims

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Application Information

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IPC IPC(8): A61B1/00
CPCA61B1/00009A61B1/05
Inventor 耿征
Owner 南京三维视嘉科技发展有限公司
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