WO2012075707A1 - Système de duodénoscopie intégrant un dispositif de balayage thermique infrarouge - Google Patents

Système de duodénoscopie intégrant un dispositif de balayage thermique infrarouge Download PDF

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Publication number
WO2012075707A1
WO2012075707A1 PCT/CN2011/070552 CN2011070552W WO2012075707A1 WO 2012075707 A1 WO2012075707 A1 WO 2012075707A1 CN 2011070552 W CN2011070552 W CN 2011070552W WO 2012075707 A1 WO2012075707 A1 WO 2012075707A1
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WO
WIPO (PCT)
Prior art keywords
infrared thermal
thermal scanning
infrared
duodenoscope
integrated
Prior art date
Application number
PCT/CN2011/070552
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English (en)
Chinese (zh)
Inventor
乔铁
Original Assignee
广州宝胆医疗器械科技有限公司
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Application filed by 广州宝胆医疗器械科技有限公司 filed Critical 广州宝胆医疗器械科技有限公司
Publication of WO2012075707A1 publication Critical patent/WO2012075707A1/fr

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163Optical arrangements
    • A61B1/00165Optical arrangements with light-conductive means, e.g. fibre optics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/046Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances for infrared imaging
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes

Definitions

  • the invention belongs to the field of medical instruments, and particularly relates to an integrated infrared thermal scanning diplectoscope system with infrared thermal scanning function. current technology
  • infrared imaging comes from military technology. It has been used for more than 40 years. With the development of various technologies such as medicine, infrared imaging and multimedia, the temperature resolution of infrared imaging has reached 0.05 degrees, and the spatial resolution has reached 0.8mrad. The image sharpness has been greatly improved, and the analysis of the results is intuitive and convenient, so its clinical application range is gradually expanding.
  • infrared imaging diagnosis shows certain advantages in the following aspects: 1) judging the location and nature of tissue pain; 2) judging the location, extent and extent of acute and chronic inflammation; 3) monitoring the blood supply function of vascular lesions; 4) Tumor warning instructions, full-course monitoring and efficacy evaluation. It can be seen that infrared imaging is an important supplement to other morphological diagnostic methods such as B-ultrasound, CT, and MR.
  • Duodenal endoscopy is a common device for gastrointestinal surgery. Doctors can go deep into the stomach for digestive tract examination or surgical treatment. Integrating the infrared thermal scanning probe into the duodenoscope, the new technology of advanced infrared thermal scanning diagnosis is provided at the same time, providing different display modes, providing a new perspective and new diagnosis for the diagnosis of duodenal diseases. s method. There is currently no integrated endoscope system that combines the two. Summary of the invention
  • the object of the present invention is to overcome the deficiencies of the prior art and to provide an integrated infrared thermal scanning duodenoscope system which integrates an infrared thermal scanning probe into the duodenum In the mirror, the duodenal lumen is scanned stereoscopically by the infrared thermal scanning probe, and the obtained data is transmitted to the host of the infrared thermal scanning processing system for image processing, and different display mode selections are provided, so that the doctor can obtain different according to the obtained
  • the display image through the analysis of the stereoscopic vascular static image of the duodenal wall and its surrounding tissue, has an unexpected diagnostic effect on understanding the function and pathology of the duodenum.
  • the integrated infrared thermal scanning duodenoscope system of the present invention comprises an infrared thermal scanning duodenoscope and a cold light source host connected thereto, a camera host, an endoscope monitor and an infrared thermal scanning system,
  • the infrared thermal scanning system includes an infrared thermal scanning processing system host and an infrared thermal scanning system monitor.
  • the infrared thermal scanning duodenoscope is a soft duodenoscope using an electronic CCD optical system, which is provided with a working end portion, a data connector and an instrument channel; a data connector and the The cold light source host, the camera host and the infrared thermal scanning processing system host are connected; the working end is made of soft material, the diameter is between 8.0mm ⁇ 15mm, the length is 700mm, and it can be at least 90° in four directions.
  • the infrared thermal scanning duodenoscope is integrated with an infrared thermal scanning probe, an endoscope lens, and a light guiding optical fiber at a tip end portion of the working end portion thereof.
  • the infrared thermal scanning probe has a diameter of 3.0 mm, and has an infrared region therein, and a protective cover is disposed outside the infrared region, and at least one infrared device is installed in the infrared region, and the infrared device includes an infrared light source emitter and an infrared receiving lens. .
  • the infrared thermal scanning duodenoscope can also be provided with a micro motor.
  • the infrared thermal scanning probe can extend the plane of the tip end of the duodenoscope 10 mm to 50 mm under the driving of the micro motor.
  • three sets of identical infrared devices are installed in the infrared region, and the three sets of infrared devices are designed to each other at a 60 degree.
  • the infrared thermal scanning probe can be rotated by the micro motor to perform circular scanning on the scanned body.
  • the infrared thermal scanning system further includes an operation panel, an operation keyboard or a handheld operation device connected to the host of the infrared thermal scanning processing system, and the operation panel and the handheld operation device are provided with control buttons. , including switch button, mode selection button, infrared intensity fine-tuning function button and monitor menu button.
  • the mode selection button is used to switch between different display modes, including the normal display mode and the night vision display mode.
  • the normal display mode refers to the display mode of infrared scanning under the illumination of the endoscope cold light source and the infrared light source
  • the night vision display mode refers to Without the endoscope cold light source and the infrared light source, depending on the different radiation intensity of the tissue, the doctor can compare the images in the two modes to obtain a better diagnostic effect from another angle.
  • the infrared panel of the infrared thermal scanning processing system is provided with an output port, and the infrared thermal scanning system monitor, an operating keyboard or a handheld operating device is connected to the output port, and the infrared thermal scanning system monitor scans and infrared heat scans. The scanning of the probes is consistent, enabling simultaneous scanning.
  • the integrated infrared thermal scanning duodenoscope system of the invention has the following working principle: the duodenum is a place where digestive function is very important, so the blood flow of the blood vessels in the tissue is rich, the temperature of the arterial blood is high, and the vein The blood temperature is low, there is some kind of heat exchange system, both of which radiate different wavelengths of infrared rays.
  • the temperature of the intestinal tract and its surrounding tissues is not only affected by blood flow in the blood vessels, but also by its own metabolism. Therefore, the temperature of the part in the tissue that changes in the tissue may be different due to the difference in the degree of blood vessel enrichment or metabolism, and the wavelength of infrared rays radiated from the outside is also different.
  • the integrated infrared thermal scanning duodenoscope system of the present invention has the following working process: the blood flow in the blood vessels of the duodenum and the infrared radiation of the tissue, and the infrared thermal scanning probe entering the duodenum
  • the precision infrared detector - after receiving the infrared receiving lens, the processing chip converts the optical signal into an electrical signal, and after preprocessing (such as amplification, filtering, etc.), the preamplifier and the main amplifier are amplified to a certain level and then enter the infrared heat.
  • preprocessing such as amplification, filtering, etc.
  • the preamplifier and the main amplifier are amplified to a certain level and then enter the infrared heat.
  • the signal input to the host also has a synchronization signal, a reference black body signal, and the like.
  • the micro-motor After the infrared thermal scanning probe is started, the micro-motor is driven to extend a certain distance from the tip end of the duodenoscope, and is rotated by the micro-motor to make a circular scan on the duodenum and its surrounding tissue.
  • the data obtained by the continuous cross-cut scan is transmitted to the host of the infrared thermal scanning processing system for image processing, and output to the infrared thermal scanning system monitor to clearly display the stereoscopic image of the duodenum, and the doctor can find the intestine through image analysis.
  • Abnormalities such as abnormal blood vessels in the tract and its surrounding tissues, sparse vascular abnormalities or the presence of vascular missing areas provide doctors with immediate diagnosis.
  • the integrated infrared thermal scanning duodenoscope system has the following clinical surgical methods: The doctor asks the patient to do the appropriate position, and after the disinfection anesthesia, the infrared thermal scanning duodenoscope is used through the patient's mouth and esophagus. Infrared thermal scanning of the duodenoscope's soft and end-flexible function into the stomach, and then into the duodenum, the doctor in the infrared thermal scanning duodenoscope direct view of the duodenum through the water Or access to surgical instruments to treat the symptoms of the duodenum.
  • the beneficial effects of the present invention are:
  • the infrared resolution of the current medical infrared imaging technology is very high, and has been widely used in many fields, especially in the medical field.
  • the infrared thermal scanning probe is integrated on the duodenoscope, and the infrared thermal scanning probe is rotated by the micro motor to extend the tip end of the duodenoscope to form a temperature difference between the blood flow of the intestinal tissue and blood vessels.
  • the infrared radiation is scanned and monitored, and the data obtained by the multi-plane continuous cross-cut scan is transmitted to the host of the infrared thermal scanning processing system for image processing, and the stereoscopic image of the duodenum is clearly displayed, and the doctor determines the lesion of the duodenum. And functional status provides a reliable objective basis, enriching the diagnostic methods of duodenal diseases, and effectively improving the accuracy of diagnosis.
  • FIG. 1 is a schematic view showing the structure of an integrated infrared thermal scanning duodenoscope system according to the present invention.
  • FIG. 2 is a schematic view showing the structure of an infrared thermal scanning duodenoscope according to the present invention.
  • 3 is a schematic view showing the end structure of the infrared thermal scanning duodenoscope shown in FIG. 2.
  • FIG. 4 is a schematic view showing the structure of an infrared thermal scanning probe according to the present invention.
  • Fig. 5 is a schematic view showing the surgical method of the integrated infrared thermal scanning duodenoscope system according to the present invention. detailed description
  • the integrated infrared thermal scanning duodenoscope system of the present invention comprises an infrared thermal scanning duodenoscope, a cold light source host 2, a camera host 3, and an infrared thermal scanning processing system host 4.
  • the keyboard or hand-held operating device 5, the infrared thermal scanning system monitor 6, and the endoscope monitor 7 are operated.
  • the infrared thermal scanning processing system host 4 is also connected with an operation panel, and the handheld operation device 5 and the operation panel are provided with control buttons such as a switch button, a mode selection button, an infrared intensity fine adjustment function button, and a monitor menu button.
  • Fig. 2 is a schematic view showing the structure of an infrared thermal scanning duodenoscope 1 which is provided with a soft working end portion 11, a data connector 12 and an instrument channel 13.
  • the data connector 12 is connected to the cold light source host 2, the camera host 3, and the infrared thermal scanning processing system host 4, respectively.
  • the soft working end portion 11 has a diameter ranging from 8.0 mm to 15 mm and a length of 700 mm, and is capable of bending at least 90 ° in four directions.
  • the infrared thermal scanning duodenoscope 1 adopts an electronic CCD optical system, which is disposed at the front end of the soft working end portion 11, and adopts an optical lens with a diameter of 3.0 mm, and the CCD chip adopts a size of 1/4 ⁇ , A CCD with at least 480,000 effective pixels, the lens field of view is above 100 °.
  • the instrument channel 13 has a diameter of 3.0 mm.
  • FIG. 3 is a schematic view showing the end structure of the infrared thermal scanning duodenoscope 1 shown in FIG. 2, which incorporates an endoscopic lens at the tip end portion 111 of the soft working end portion 11 thereof. 121.
  • An infrared thermal scanning probe 122 and a light guiding optical fiber 123, and an instrument channel outlet 131 is further provided.
  • the endoscope lens 121 has a diameter of 3.0 mm
  • the infrared thermal scanning probe 122 has a diameter of 3.0 mm.
  • the infrared thermal scanning probe 122 is provided with an infrared region 1222.
  • the infrared region 1222 is externally provided with a protective cover 1221, and the infrared region 1222 is provided with an infrared device 1223.
  • the infrared device 1223 includes an infrared light source emitter and an infrared receiving lens. Three sets of identical infrared devices 1223 are installed in the infrared region 1222, and the three sets of infrared devices 1223 are designed to be 60 degrees apart from each other.
  • the infrared thermal scanning probe 122 can be extended by the micro-motor to extend the infrared thermal scanning duodenoscope tip 10 mm to 50 mm, and rotate around the N-N' direction to make a ring shape on the scanned body. scanning.
  • Fig. 5 is a schematic view showing the surgical method of the integrated infrared thermal scanning duodenoscope system according to the present invention.
  • the doctor asks the patient to do the appropriate position.
  • the infrared thermography scans the duodenal lens 1 through the patient's mouth and esophagus, and uses the infrared heat to scan the softness of the duodenoscope and the function of the end bendable into the stomach. Then turn into the duodenum 9,
  • the doctor treated the duodenum with water or a surgical instrument under the direct vision of the infrared thermal scanning duodenoscope 1 to treat the duodenal disease.
  • the infrared thermal scanning probe 122 located at the apex portion 111 of the infrared thermal scanning duodenoscope 1 is activated, and after the infrared thermal scanning probe 122 is activated, the distal end of the duodenal endoscope 111 is extended to rotate the duodenal lumen.
  • the infrared thermal scan is output to the infrared thermal scanning system monitor 6, providing a basis for the doctor to diagnose the status of the duodenal lumen and surrounding tissue.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Endoscopes (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un système de duodénoscopie intégrant un dispositif de balayage thermique infrarouge, qui comprend un duodénoscope (1) auquel sont reliés le dispositif de balayage thermique infrarouge, une source de lumière froide hôte (2), une caméra hôte (3), un moniteur endoscopique (7) et un système de balayage thermique infrarouge. Le système de balayage thermique infrarouge comprend un système hôte de traitement par balayage thermique infrarouge (4) et un moniteur de système de balayage thermique infrarouge (6). Le système de duodénoscopie intègre une sonde de balayage thermique infrarouge (132) pouvant effectuer un balayage circulaire tridimensionnel des parois et tissus périphériques du duodénum. Les données acquises sont transmises au système hôte de traitement par balayage thermique infrarouge (4) pour traitement des images. Le système de traitement par balayage thermique infrarouge offre plusieurs modes de fonctionnement, dont un mode d'affichage normal et un mode d'affichage en vision nocturne, qui permettent au médecin d'acquérir différentes images d'affichage et de s'informer ainsi des fonctions et de l'état pathologique du duodénum, afin de poser un diagnostic correct par l'analyse de fonds d'images tridimensionnels des vaisseaux du duodénum.
PCT/CN2011/070552 2010-12-10 2011-01-25 Système de duodénoscopie intégrant un dispositif de balayage thermique infrarouge WO2012075707A1 (fr)

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Application Number Priority Date Filing Date Title
CN201010581861.5A CN102100530B (zh) 2010-12-10 2010-12-10 一体化红外线热扫描十二指肠镜系统
CN201010581861.5 2010-12-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109893258A (zh) * 2019-02-20 2019-06-18 广州乔铁医疗科技有限公司 一体化外视镜腹腔镜系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102100536B (zh) * 2010-12-10 2012-11-21 广州宝胆医疗器械科技有限公司 具有红外线热扫描功能的电子十二指肠镜系统
CN111938559A (zh) * 2020-08-14 2020-11-17 河南科技大学第一附属医院 一种消化内科用新型肠窥镜
CN111904364A (zh) * 2020-08-14 2020-11-10 赣州久创科技有限公司 一种新型肠窥镜用的可伸缩式头部结构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001286436A (ja) * 2000-04-06 2001-10-16 Olympus Optical Co Ltd 内視鏡
JP2002253484A (ja) * 2001-02-27 2002-09-10 Asahi Optical Co Ltd 十二指腸内視鏡の先端部
CN2551172Y (zh) * 2002-06-14 2003-05-21 台群科技股份有限公司 具有红外线的内视镜
US20030187319A1 (en) * 2002-03-29 2003-10-02 Olympus Optical Co., Ltd. Sentinel lymph node detecting apparatus, and method thereof
JP2008212317A (ja) * 2007-03-02 2008-09-18 Seiko Epson Corp 光学装置及びモニタ装置
CN102100533A (zh) * 2010-12-10 2011-06-22 广州宝胆医疗器械科技有限公司 一体化红外线热扫描膀胱镜系统
CN201894633U (zh) * 2010-12-10 2011-07-13 广州宝胆医疗器械科技有限公司 一体化红外线热扫描十二指肠镜系统
CN201899471U (zh) * 2010-12-10 2011-07-20 广州宝胆医疗器械科技有限公司 具有红外线热扫描功能的电子十二指肠镜系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05228098A (ja) * 1992-02-20 1993-09-07 Asahi Optical Co Ltd 測温内視鏡
US8774902B2 (en) * 2006-06-01 2014-07-08 Passive Imaging Medical Systems Engineering Ltd. (Pims) Method of infrared thermography for earlier diagnosis of gastric colorectal and cervical cancer
WO2010114920A1 (fr) * 2009-03-31 2010-10-07 Ohio University Endoscopes à réglage automatique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001286436A (ja) * 2000-04-06 2001-10-16 Olympus Optical Co Ltd 内視鏡
JP2002253484A (ja) * 2001-02-27 2002-09-10 Asahi Optical Co Ltd 十二指腸内視鏡の先端部
US20030187319A1 (en) * 2002-03-29 2003-10-02 Olympus Optical Co., Ltd. Sentinel lymph node detecting apparatus, and method thereof
CN2551172Y (zh) * 2002-06-14 2003-05-21 台群科技股份有限公司 具有红外线的内视镜
JP2008212317A (ja) * 2007-03-02 2008-09-18 Seiko Epson Corp 光学装置及びモニタ装置
CN102100533A (zh) * 2010-12-10 2011-06-22 广州宝胆医疗器械科技有限公司 一体化红外线热扫描膀胱镜系统
CN201894633U (zh) * 2010-12-10 2011-07-13 广州宝胆医疗器械科技有限公司 一体化红外线热扫描十二指肠镜系统
CN201899471U (zh) * 2010-12-10 2011-07-20 广州宝胆医疗器械科技有限公司 具有红外线热扫描功能的电子十二指肠镜系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109893258A (zh) * 2019-02-20 2019-06-18 广州乔铁医疗科技有限公司 一体化外视镜腹腔镜系统
CN109893258B (zh) * 2019-02-20 2024-03-29 广州乔铁医疗科技有限公司 一体化外视镜腹腔镜系统

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