技术领域technical field
本实用新型涉及的是一种医疗器械的技术领域，尤其涉及的是一种用于检查食管疾病的胶囊内窥镜。The utility model relates to the technical field of medical equipment, in particular to a capsule endoscope for checking esophageal diseases.
背景技术Background technique
食管疾病主要包括食管肿瘤、胃食管反流病和Barrett食管等，常用的诊断方法主要有食管镜检查、食道X线钡餐检查和CT扫描检查等。目前，对食管癌的早期发现主要依靠传统食管镜进行筛查。食管镜检查采用机械插入式的方法，属于侵入性检查，患者不适反应多且易损伤咽喉部位，痛苦较大，有时还需要镇静麻醉。食道X线钡餐检查可发现食管畸形及运动异常，但对微小病变发现率较低；CT扫描检查能发现壁内病变与腔外病变，对食管粘膜观察差，难以发现早期食管癌。Esophageal diseases mainly include esophageal tumors, gastroesophageal reflux disease, and Barrett's esophagus. The commonly used diagnostic methods mainly include esophagoscopy, esophageal X-ray barium meal examination, and CT scan. At present, the early detection of esophageal cancer mainly relies on traditional esophagoscopy for screening. Esophagoscopy adopts a mechanical insertion method, which is an invasive examination. The patient has many discomfort reactions and is easy to damage the throat, causing great pain, and sometimes requires sedation and anesthesia. Esophageal X-ray barium meal examination can detect esophageal deformities and abnormal movements, but the detection rate of small lesions is low; CT scan examination can detect intramural lesions and extracavitary lesions, and the observation of esophageal mucosa is poor, so it is difficult to detect early esophageal cancer.
而胶囊内窥镜又称无线胶囊内窥镜，在小肠疾病的应用优势得到广泛认识后，其无创、简便、易耐受等优点在胃食管疾病中的临床应用也日趋显著。2008年以色列Given影像公司生产的第二代食管胶囊内窥镜(14帧/秒)在诊断胃食管反流病的敏感性和食管显示能力均明显高于2004年生产的第一代食管胶囊内窥镜(4帧/秒)。然而因食管的特殊解剖结构，食管胶囊内窥镜在食管内的运行速度较快，采集图像少，仍不能满足详细观察食管腔的需要。为获得更清晰、准确的病变部位图像，随后出现了系线式胶囊内窥镜，即用一条绳子系于胶囊上，通过绳子控制胶囊在食管腔内定位并上下移动拍摄图像。但这种技术需要适当的高水平消毒，且不易操作，反复提拉时容易损伤咽喉。Capsule endoscopy, also known as wireless capsule endoscopy, has been widely recognized in the application of small bowel diseases, and its non-invasive, simple and easy to tolerate clinical application in gastroesophageal diseases is also becoming more and more significant. In 2008, the second-generation esophageal capsule endoscope (14 frames per second) produced by Israel Given Imaging Company was significantly higher than the first-generation esophageal capsule endoscope produced in 2004 in the diagnosis of gastroesophageal reflux disease. Looking Glass (4 fps). However, due to the special anatomical structure of the esophagus, the esophageal capsule endoscope runs faster in the esophagus and collects fewer images, which still cannot meet the needs of detailed observation of the esophageal lumen. In order to obtain a clearer and more accurate image of the lesion, a tethered capsule endoscope subsequently appeared, that is, a rope is tied to the capsule, and the rope is used to control the positioning of the capsule in the esophageal lumen and move up and down to capture images. However, this technique requires proper high-level disinfection, and is not easy to operate, and it is easy to damage the throat when it is pulled repeatedly.
实用新型内容Utility model content
本实用新型的目的在于克服现有技术的不足，提供了一种用于检查食管疾病的胶囊内窥镜，以解决传统食管胶囊内窥镜在食管内运动快难以成像，消毒要求高不易操作，以及损伤咽喉等技术问题。The purpose of the utility model is to overcome the deficiencies of the prior art and provide a capsule endoscope for checking esophageal diseases to solve the problem that the traditional esophageal capsule endoscope moves fast in the esophagus and is difficult to image, and the disinfection requirements are high and difficult to operate. And technical problems such as damage to the throat.
本实用新型是通过以下技术方案实现的：The utility model is achieved through the following technical solutions:
一种用于检查食管疾病的胶囊内窥镜，包括胶囊壳体，及设于胶囊壳体内的pH传感器，成像装置，控制装置和微电机，所述胶囊壳体的中部为透明体，所述成像装置设于胶囊壳体的透明部，并透过胶囊壳体的透明体获取外部图像，所述胶囊内窥镜还包括气囊，及与气囊连接的充气/放气装置和压力传感器，所述气囊为透明体，设于胶囊壳体外周，所述充气/放气装置和压力传感器均设于胶囊壳体内，所述充气/放气装置用于驱动气囊打开或收缩，所述压力传感器用于测量气囊中的气体压力。A capsule endoscope for checking esophageal diseases, comprising a capsule shell, a pH sensor disposed in the capsule shell, an imaging device, a control device and a micro-motor, the middle part of the capsule shell is a transparent body, the The imaging device is arranged on the transparent part of the capsule shell, and obtains external images through the transparent body of the capsule shell. The capsule endoscope also includes an airbag, an inflation/deflation device and a pressure sensor connected with the airbag. The airbag is a transparent body and is arranged on the outer periphery of the capsule shell. Both the inflation/deflation device and the pressure sensor are arranged in the capsule casing. The inflation/deflation device is used to drive the airbag to open or shrink, and the pressure sensor is used to Measure the gas pressure in the bladder.
所述充气/放气装置包括气体发生器，设于气体发生器上的充气阀，及设于气囊上的放气阀，所述充气阀和放气阀分别与气囊的充/放气口连接，并通过控制装置驱动工作；当胶囊内窥镜到达待检测食管时，控制装置驱动充气阀打开，气体发生器产生无毒无味的透明气体，将胶囊壳体外周的气囊撑开，气囊外壁与食管壁充分接触，当压力传感器获得的压力超过设定的阈值时，控制装置发出指令关闭充气阀；在胶囊内窥镜行走过程中，根据气囊内压力与设定阈值比较，控制装置实时调整充气阀和放气阀，压力低时打开充气阀，压力高时打开放气阀，从而使气囊随食管壁直径大小变化而改变，从而实现气囊与食管内壁充分接触。The inflation/deflation device includes a gas generator, an inflation valve disposed on the gas generator, and a deflation valve disposed on the airbag, the inflation valve and the deflation valve are respectively connected to the inflation/deflation port of the airbag, And it is driven by the control device; when the capsule endoscope reaches the esophagus to be detected, the control device drives the inflation valve to open, and the gas generator generates non-toxic and tasteless transparent gas, which stretches the air bag around the outer periphery of the capsule shell, and the outer wall of the air bag is in contact with the esophagus. The tube wall is in full contact, and when the pressure obtained by the pressure sensor exceeds the set threshold, the control device sends an instruction to close the inflation valve; during the walking process of the capsule endoscope, according to the comparison between the pressure in the air bag and the set threshold, the control device adjusts the inflation in real time Valve and deflation valve, open the inflation valve when the pressure is low, and open the deflation valve when the pressure is high, so that the air bag changes with the diameter of the esophageal wall, so as to achieve full contact between the air bag and the inner wall of the esophagus.
所述充气/放气装置包括充气阀，吸气或抽气阀，气体存储仓，所述气体存储仓包括进气仓和放气仓，所述进气仓初始为真空状态，所述放气仓内储存无毒无味的透明压缩气体，所述充气阀设于放气仓上，所述吸气或抽气阀设于进气仓上，所述充气阀以及吸气或抽气阀由控制装置驱动工作；当胶囊内窥镜到达待检测食管时，控制装置将充气阀打开，放气仓中的气体将气囊撑开，使气囊外壁与食管壁充分接触，当压力传感器获得的压力超过设定的阈值时，控制装置发出指令关闭充气阀；在胶囊内窥镜行走过程中，根据气囊内压力与设定阈值比较，控制装置实时调整充气阀，吸气或抽气阀，压力低时打开充气阀，压力高时打开吸气或抽气阀，从而使气囊随食管壁直径大小变化而改变，实现气囊与食管内壁充分接触。The inflation/deflation device includes an inflation valve, an air suction or exhaust valve, and a gas storage bin, and the gas storage bin includes an air intake bin and an air deflation bin, the inlet bin is initially in a vacuum state, and the deflation bin Non-toxic and tasteless transparent compressed gas is stored in the warehouse. The inflation valve is set on the deflation chamber, and the suction or exhaust valve is arranged on the intake chamber. The inflation valve and the suction or exhaust valve are controlled by The device is driven to work; when the capsule endoscope reaches the esophagus to be detected, the control device will open the inflation valve, and the gas in the deflation chamber will stretch the air bag to make the outer wall of the air bag fully contact with the esophageal wall. When the pressure obtained by the pressure sensor exceeds When the set threshold is set, the control device sends an instruction to close the inflation valve; during the capsule endoscope’s walking process, according to the comparison between the pressure inside the airbag and the set threshold, the control device adjusts the inflation valve in real time, the suction or suction valve, when the pressure is low Open the inflation valve, open the suction or suction valve when the pressure is high, so that the air bag changes with the diameter of the esophageal wall, and the air bag can fully contact the inner wall of the esophagus.
所述胶囊壳体内还设有加速度传感器，加速度传感器用于判断病人吞咽动作是否开始，并将pH传感器反馈的pH值作为辅助判断，可提高胶囊内窥镜的反应灵敏性，吞咽后，胶囊内窥镜到达待检测部位食管时，启动充气/放气装置，将气囊打开。The capsule housing is also provided with an acceleration sensor. The acceleration sensor is used to judge whether the patient’s swallowing action has started, and the pH value fed back by the pH sensor is used as an auxiliary judgment, which can improve the response sensitivity of the capsule endoscope. When the speculum reaches the esophagus at the site to be detected, the inflation/deflation device is activated to open the air bag.
所述成像装置包括摄像单元和辅助成像单元，所述辅助成像单元为光源、超声换能器、激光雷达或光学相干层析成像仪；光源可直接提供光线，辅助摄像单元成像；超声换能器与摄像单元结合，可实现超声成像，以检查食管及周围的组织情况；激光雷达与摄像单元结合，可辅助摄像单元获得食管壁高频率三维图像；光学相干层析成像仪能够显示出食管壁层的结构，实现快速实时确诊食管组织的恶变部位。The imaging device includes a camera unit and an auxiliary imaging unit, and the auxiliary imaging unit is a light source, an ultrasonic transducer, a laser radar or an optical coherence tomography imager; the light source can directly provide light, and the auxiliary camera unit is imaged; the ultrasonic transducer Combined with the camera unit, ultrasound imaging can be realized to check the esophagus and surrounding tissues; the combination of laser radar and camera unit can assist the camera unit to obtain high-frequency three-dimensional images of the esophageal wall; optical coherence tomography can display the esophagus The structure of the parietal layer can be used to realize rapid and real-time diagnosis of the malignant transformation site of esophageal tissue.
所述摄像单元由一微型摄像机及与微型摄像机底座连接的旋转装置组成，所述旋转装置驱动微型摄像机360°转动，实现对食管壁的360°全景拍摄，所述旋转机构由微电机驱动转动；或者所述摄像单元为由若干微型摄像机组成，每个微型摄像机的视角叠加后构成360°全景视角。The camera unit consists of a micro camera and a rotating device connected to the base of the micro camera. The rotating device drives the micro camera to rotate 360° to achieve a 360° panoramic shot of the esophageal wall. The rotating mechanism is driven by a micro motor or the camera unit is made up of several miniature cameras, and the angle of view of each miniature camera is superimposed to form a 360° panoramic angle of view.
所述胶囊壳体呈两端为半球形的圆柱体，所述胶囊壳体的圆柱体中部为一圈透明体。The capsule shell is a cylinder with hemispherical ends at both ends, and the middle part of the cylinder of the capsule shell is a circle of transparent body.
本实用新型相比现有技术具有以下优点：本实用新型提供了一种用于检查食管疾病的胶囊内窥镜，该胶囊内窥镜能够根据食管壁压力或蠕动力，通过充气/放气装置控制气囊大小，实现气囊与食管壁的充分接触，减缓胶囊运行速度并撑开食管以利于获取食管壁图像或视频，该胶囊内窥镜也可用于其它消化道类疾病的检查。Compared with the prior art, the utility model has the following advantages: the utility model provides a capsule endoscope for checking esophageal diseases, and the capsule endoscope can be inflated/deflated according to the esophageal wall pressure or peristaltic force The device controls the size of the balloon to achieve full contact between the balloon and the esophageal wall, slowing down the running speed of the capsule and stretching the esophagus to facilitate the acquisition of images or videos of the esophageal wall. The capsule endoscope can also be used for the examination of other digestive tract diseases.
附图说明Description of drawings
图1为实施例1的胶囊内窥镜的结构示意图；Fig. 1 is the structural representation of the capsule endoscope of embodiment 1;
图2为实施例1的充气/放气装置的结构示意图；Fig. 2 is the structural representation of the inflation/deflation device of embodiment 1;
图3为实施例2的胶囊内窥镜的结构示意图；Fig. 3 is the structural representation of the capsule endoscope of embodiment 2;
图4为实施例2的充气/放气装置的结构示意图。Fig. 4 is a schematic structural view of the inflation/deflation device of the second embodiment.
具体实施方式detailed description
下面对本实用新型的实施例作详细说明，本实施例在以本实用新型技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本实用新型的保护范围不限于下述的实施例。The following is a detailed description of the embodiments of the present utility model. This embodiment is implemented on the premise of the technical solution of the present utility model, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present utility model is not limited to the following the described embodiment.
实施例1Example 1
本实施例提供了一种用于检查食管疾病的胶囊内窥镜，具有如图1-2所示的结构，包括胶囊壳体1，及设于胶囊壳体1内的pH传感器2，成像装置，控制装置4和微电机5，还包括气囊6，及与气囊6连接的充气/放气装置7，压力传感器8，加速度传感器9和电源10，其中：This embodiment provides a capsule endoscope for checking esophageal diseases, which has a structure as shown in Figure 1-2, including a capsule shell 1, a pH sensor 2 disposed in the capsule shell 1, and an imaging device , control device 4 and micromotor 5, also comprise air bag 6, and the inflation/deflation device 7 that is connected with air bag 6, pressure sensor 8, acceleration sensor 9 and power supply 10, wherein:
所述胶囊壳体1呈两端为半球形的圆柱体，所述胶囊壳体1的圆柱体中部为一圈透明体，所述成像装置设于胶囊壳体1的透明部，并透过胶囊壳体1的透明体获取外部图像；The capsule shell 1 is a cylinder with hemispherical ends at both ends, and the middle part of the cylinder of the capsule shell 1 is a circle of transparent body. The transparent body of the casing 1 acquires an external image;
所述气囊6为透明体，包覆在胶囊壳体1的圆柱体外周，所述充气/放气装置7和压力传感器8均设于胶囊壳体1内，所述充气/放气装置7包括气体发生器71，设于气体发生器71上的充气阀72，及设于气囊上的放气阀73，所述充气阀72和放气阀73分别与气囊6的充/放气口连接，用于驱动气囊6打开或收缩，所述充气阀72和放气阀73由控制装置4驱动工作；所述压力传感器8用于测量气囊6中的气体压力；The airbag 6 is a transparent body, which is coated on the outer periphery of the cylinder of the capsule housing 1, and the inflation/deflation device 7 and the pressure sensor 8 are all arranged in the capsule housing 1, and the inflation/deflation device 7 includes Gas generator 71, the inflation valve 72 that is located on the gas generator 71, and the deflation valve 73 that is located on the air bag, described inflation valve 72 and deflation valve 73 are respectively connected with the filling/deflation port of air bag 6, use To drive the airbag 6 to open or shrink, the inflation valve 72 and the deflation valve 73 are driven by the control device 4; the pressure sensor 8 is used to measure the gas pressure in the airbag 6;
所述压力传感器8的信号输出端连接至控制装置4的压力信号输入端，所述控制装置4的控制信号输出端连接至充气/放气装置7；压力传感器8将测得的气囊6中的压力值反馈给控制装置4，由控制装置4控制充气/放气装置7工作，实现气囊6的充气/放气程度的调节；The signal output end of the pressure sensor 8 is connected to the pressure signal input end of the control device 4, and the control signal output end of the control device 4 is connected to the inflation/deflation device 7; The pressure value is fed back to the control device 4, and the control device 4 controls the operation of the inflation/deflation device 7 to realize the adjustment of the inflation/deflation degree of the airbag 6;
所述成像装置包括摄像单元和辅助成像单元，所述摄像单元由一微型摄像机31及与微型摄像机31底座连接的旋转装置32组成，所述旋转装置32驱动微型摄像机31转动，实现对食管壁的360°全景拍摄，所述旋转机构由微电机5驱动，实现360°转动，但不限于此，为实现360°全景拍摄，所述摄像单元也可以由若干微型摄像机31组成，每个微型摄像机31的视角叠加后构成360°全景视角，比如，所述摄像单元可由3个微型摄像机31呈120°排列，3个微型摄像机31的视角叠加后呈360°；The imaging device includes a camera unit and an auxiliary imaging unit. The camera unit is composed of a miniature camera 31 and a rotating device 32 connected to the base of the miniature camera 31. The rotating device 32 drives the miniature camera 31 to rotate to realize the observation of the esophageal wall. 360 ° panoramic shooting, the rotating mechanism is driven by micro-motor 5 to realize 360 ° rotation, but not limited to this, in order to realize 360 ° panoramic shooting, the camera unit can also be made up of several miniature cameras 31, each miniature camera The viewing angles of 31 are superimposed to form a 360 ° panoramic viewing angle. For example, the camera unit can be arranged at 120 ° by 3 miniature cameras 31, and the viewing angles of the 3 miniature cameras 31 are superimposed to be 360 °;
所述辅助成像单元为光源33，光源33可直接提供光线，辅助摄像单元成像，但不限于此，根据食管疾病的诊断需要，所述辅助成像单元也可以为超声换能器、激光雷达或光学相干层析成像仪，其中：超声换能器与摄像单元结合，可实现超声成像，以检查食管及周围的组织情况；激光雷达与摄像单元结合，可辅助摄像单元获得食管壁高频率三维图像；光学相干层析成像仪能够显示出食管壁层的结构，实现快速实时确诊食管组织的恶变部位。The auxiliary imaging unit is a light source 33. The light source 33 can directly provide light to assist the imaging unit in imaging, but it is not limited thereto. According to the diagnosis needs of esophageal diseases, the auxiliary imaging unit can also be an ultrasonic transducer, a laser radar or an optical sensor. Coherence tomography imager, in which: the combination of ultrasonic transducer and camera unit can realize ultrasound imaging to check the esophagus and surrounding tissues; the combination of laser radar and camera unit can assist the camera unit to obtain high-frequency three-dimensional images of the esophagus wall The optical coherence tomography instrument can display the structure of the esophageal wall layer, and realize the rapid and real-time diagnosis of the malignant transformation site of the esophageal tissue.
未使用前，胶囊内窥镜的气囊6收缩，紧贴在胶囊壳体1的外表面，以便于病人吞咽。当胶囊内窥镜被含入口中后，根据加速度传感器9可以获得吞咽动作是否开始，并将pH传感器2反馈的pH值作为辅助判断，吞咽后，胶囊内窥镜到达待检测部位食管时，控制装置4驱动充气阀72打开，气体发生器71产生无毒无味的透明气体，将胶囊壳体1外周的气囊6撑开，气囊6外壁与食管壁充分接触。在胶囊内窥镜行走过程中，随着食管大小的改变，根据气囊6内压力与设定阈值比较，控制装置4实时调整充气阀72和放气阀73，压力低时打开充气阀72，压力高时打开放气阀73，从而使气囊6随食管壁直径大小变化而改变，实现气囊6与食管内壁充分接触，同时便于胶囊内窥镜通过较狭窄的地方。气囊6与食管壁充分接触时，利用气囊6与食管内壁产生的摩擦力,减缓胶囊内窥镜在食管中的运行速度。在气囊6打开的同时，微电机5驱动旋转装置32运动，旋转装置32带动微型摄像机31实现360°快速旋转，以便胶囊内窥镜在食管中移动的同时，快速获取食管壁图像或视频。为进一步缓解胶囊内窥镜在食管中的运行速度，病人也可以选择左侧或右侧卧位进行辅助检查。最后，根据pH传感器2反馈的pH值判断，当胶囊内窥镜离开食管进入胃部后，充气/放气装置7收缩气囊，关闭微电机，胶囊恢复到初始状态。Before being used, the air bag 6 of the capsule endoscope is shrunk, and is closely attached to the outer surface of the capsule shell 1, so that the patient can swallow it easily. When the capsule endoscope is contained in the mouth, it can be obtained according to the acceleration sensor 9 whether the swallowing action starts, and the pH value fed back by the pH sensor 2 is used as an auxiliary judgment. After swallowing, when the capsule endoscope reaches the esophagus to be detected, control The device 4 drives the inflatable valve 72 to open, and the gas generator 71 generates non-toxic, tasteless and transparent gas to expand the air bag 6 on the outer periphery of the capsule shell 1, and the outer wall of the air bag 6 fully contacts the esophageal wall. During the walking process of the capsule endoscope, as the size of the esophagus changes, the control device 4 adjusts the inflation valve 72 and the deflation valve 73 in real time according to the comparison between the pressure in the airbag 6 and the set threshold, and opens the inflation valve 72 when the pressure is low. When it is high, the deflation valve 73 is opened, so that the air bag 6 changes with the diameter of the esophageal wall, and the full contact between the air bag 6 and the inner wall of the esophagus is realized, and at the same time, it is convenient for the capsule endoscope to pass through a relatively narrow place. When the air bag 6 is in full contact with the esophageal wall, the friction force generated by the air bag 6 and the inner wall of the esophagus is used to slow down the running speed of the capsule endoscope in the esophagus. When the airbag 6 is opened, the micro-motor 5 drives the rotating device 32 to move, and the rotating device 32 drives the micro-camera 31 to achieve a 360° rapid rotation, so that the capsule endoscope can quickly acquire images or videos of the esophageal wall while moving in the esophagus. In order to further ease the running speed of the capsule endoscope in the esophagus, the patient can also choose the left or right lateral position for auxiliary examination. Finally, according to the pH value fed back by the pH sensor 2, when the capsule endoscope leaves the esophagus and enters the stomach, the inflation/deflation device 7 shrinks the airbag, turns off the micromotor, and the capsule returns to its original state.
实施例2Example 2
本实施例提供了另一种用于检查食管疾病的胶囊内窥镜，具有如图3-4所示的结构，其中：所述充气/放气装置7包括充气阀71，吸气或抽气阀72和气体存储仓，所述气体存储仓包括进气仓73和放气仓74，所述进气仓73的体积大于放气仓74，且所述进气仓73初始为真空状态，所述放气仓74内储存无毒无味的透明压缩气体，所述充气阀71设于放气仓74上，所述吸气或抽气阀72设于进气仓73上，所述充气阀71以及吸气或抽气阀72由控制装置4驱动工作；当胶囊内窥镜到达待检测食管时，控制装置4将充气阀71打开，放气仓74中的气体将气囊6撑开，使气囊6外壁与食管壁充分接触，当压力传感器8获得的压力超过设定的阈值时，控制装置4发出指令关闭充气阀71；在胶囊内窥镜行走过程中，根据气囊6内压力与设定阈值比较，控制装置4实时调整充气阀71，吸气或抽气阀72，压力低时打开充气阀71，压力高时打开吸气或抽气阀72，从而使气囊6随食管壁直径大小变化而改变，实现气囊6与食管内壁充分接触。其它结构同实施例1。This embodiment provides another capsule endoscope for checking esophageal diseases, which has a structure as shown in Fig. The valve 72 and the gas storage bin, the gas storage bin includes an air intake bin 73 and an air release bin 74, the volume of the inlet bin 73 is larger than the air release bin 74, and the inlet bin 73 is initially in a vacuum state, so Non-toxic and tasteless transparent compressed gas is stored in the deflation chamber 74, the inflation valve 71 is arranged on the deflation chamber 74, the air suction or exhaust valve 72 is arranged on the intake chamber 73, and the inflation valve 71 And the suction or exhaust valve 72 is driven by the control device 4; when the capsule endoscope reaches the esophagus to be detected, the control device 4 opens the inflation valve 71, and the gas in the deflation chamber 74 stretches the air bag 6 to make the air bag 6. The outer wall is in full contact with the esophageal wall. When the pressure obtained by the pressure sensor 8 exceeds the set threshold, the control device 4 issues an instruction to close the inflation valve 71; Threshold value comparison, the control device 4 adjusts the inflation valve 71 and the suction or suction valve 72 in real time. When the pressure is low, the inflation valve 71 is opened, and when the pressure is high, the suction or suction valve 72 is opened, so that the air bag 6 can follow the diameter of the esophageal wall. Change and change, realize that the balloon 6 is in full contact with the inner wall of the esophagus. Other structures are with embodiment 1.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132008.XUCN205322285U (en) | 2015-12-30 | 2015-12-30 | A capsule endoscope for checking esophagel disease |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132008.XUCN205322285U (en) | 2015-12-30 | 2015-12-30 | A capsule endoscope for checking esophagel disease |
| Publication Number | Publication Date |
|---|---|
| CN205322285Utrue CN205322285U (en) | 2016-06-22 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132008.XUExpired - Fee RelatedCN205322285U (en) | 2015-12-30 | 2015-12-30 | A capsule endoscope for checking esophagel disease |
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| CN (1) | CN205322285U (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476593A (en)* | 2015-12-30 | 2016-04-13 | 中科院合肥技术创新工程院 | Capsule endoscope for examining esophageal diseases |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476593A (en)* | 2015-12-30 | 2016-04-13 | 中科院合肥技术创新工程院 | Capsule endoscope for examining esophageal diseases |
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