CN104161513A - Minimally-invasive inflatable type rectum impedance characteristic detecting device - Google Patents

Minimally-invasive inflatable type rectum impedance characteristic detecting device Download PDF

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Publication number
CN104161513A
CN104161513A CN201410325576.5A CN201410325576A CN104161513A CN 104161513 A CN104161513 A CN 104161513A CN 201410325576 A CN201410325576 A CN 201410325576A CN 104161513 A CN104161513 A CN 104161513A
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China
Prior art keywords
endoscope
signal
rectum
inner balloon
pressure transducer
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Pending
Application number
CN201410325576.5A
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Chinese (zh)
Inventor
冉鹏
李章勇
罗杨
林金朝
王伟
庞宇
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Chongqing University of Post and Telecommunications
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Chongqing University of Post and Telecommunications
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Priority to CN201410325576.5A priority Critical patent/CN104161513A/en
Publication of CN104161513A publication Critical patent/CN104161513A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a minimally-invasive inflatable type rectum impedance characteristic detecting device, and belongs to the technical field of medical apparatuses and instruments. The minimally-invasive inflatable type rectum impedance characteristic detecting device comprises an endoscope, an internal air bag, a detecting electrode, a pressure sensor and a signal generating and collecting device. The endoscope is used for achieving positioning and initially examining the conditions inside a rectum. The detecting electrode is used for sending a stimulating electrical signal and receiving an electrical signal returned by the tissue of the inner wall of the rectum. The pressure sensor is used for feeding back the pressure conditions of the internal air bag making contact with the inner wall of the rectum. The signal generating and collecting device is used for generating and receiving the stimulating electrical signal and accordingly processing the signal. The internal air bag is arranged on the endoscope and inflates the endoscope through an external inflation device so that the internal air bag on the endoscope can expand and the detecting electrode and the pressure sensor installed on the endoscope can make close contact with the inner wall of the rectum. By means of the minimally-invasive inflatable type rectum impedance characteristic detecting device, small changes of rectum tissue lesion can be reflected, and the lesion part can be found in time; whether the lesion occurs in the rectum or not is judged by measuring the rectum impedance, three-dimensional imaging is conducted, and scientific dependence is provided for positioning a tumor before and during a resection operation in a definite case.

Description

A kind of inflated type rectum electrical impedance characteristics checkout gear of Wicresoft
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of inflated type rectum electrical impedance characteristics checkout gear of Wicresoft.
Background technology
Rectal cancer refers at pectinate line to the cancer between sigmoid colon, rectum intersection.Be malignant tumor common in gastrointestinal tract, sickness rate is only second to the harmonization of the stomach esophageal carcinoma, is the modal one (accounting for 60% left and right) of colorectal cancer.The ratio that most gene patients person below 30 years old more than 40 years old accounts for the more common men and women of 15% male is 2-3:1, and rectal cancer is one way of life mode disease.At present, it has leapt to second in cancer ranking list.
Rectal cancer is often asymptomatic in early days clinically, or symptom is without special, thereby does not often cause patient and first visit doctor's attention, and the detection technique of rectal cancer is also very complicated.Electrical impedance imaging is a kind of need be measured at body surface, and reconstructs the means that internal driving distributes.It sets up electric field by injection current to target area, and the voltage subsequently target periphery being produced is measured.In traditional electrical impedance tomography technology, the placement of electrode is confined to certain plane conventionally, but electrical impedance imaging is a three-dimensional problem in essence, and its electric current is not limited in certain plane and flows, and therefore, two-dimension image rebuild can produce pseudomorphism conventionally.And the subject matter of the anti-imaging of three-dimensional resistance is: system cannot be born complicated algorithm, pathosis makes algorithm sometimes be difficult to realize, and especially edge region finally causes target location in reconstruction image to be difficult to judgement or shape distortion.Open electric impedance imaging system can be realized the top layer impedance judgement of object well, but is limited by the factor of investigation depth, and precision can only ensure in the scope of 2~3 centimetres.
For the problems referred to above, the present invention proposes a kind of crossing plane electrod-array system, by staggered two dimensional surface measurement data, can more effectively build three-dimensional imaging model, and under the prerequisite that ensures effective accuracy, reduce the amount of calculation of Direct Three-dimensional reconstruct.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of inflated type rectum electrical impedance characteristics checkout gear of Wicresoft, judge whether mutation of rectum by measuring rectum resistance, and carry out three-dimensional imaging, can provide scientific basis for the tumor-localizing before confirmed cases resection operation and in performing the operation.
For achieving the above object, the invention provides following technical scheme:
An inflated type rectum electrical impedance characteristics checkout gear for Wicresoft, this device comprises that endoscope, inner balloon, exploring electrode, pressure transducer, signal occur and harvester, endoscope-use is in realizing location and tentatively checking intrarectal situation; Exploring electrode and pressure transducer are fixedly mounted on endoscope's outer surface, and exploring electrode stimulates the signal of telecommunication and receives the signal of telecommunication that inner walls of rectums tissue returns for sending, and pressure transducer is for feeding back the pressure condition that inner balloon contacts with inner walls of rectums; Signal occur and harvester for generation of with receive electrical stimulation signal, and signal is carried out to respective handling; Inner balloon is arranged in endoscope, inflates, thereby the inner balloon in endoscope is expanded by external inflation device to endoscope, realizes the exploring electrode and pressure transducer and the inner walls of rectums close contact that are arranged in endoscope.
Further, described signal occurs and harvester is arranged on endoscope inside, comprises multifrequency constant flow module, electrode gating module, signal processing module, image-forming data acquisition and communication module; Multifrequency constant flow module is for generation of the sinusoidal wave form of different frequency, and realizes constant current output, and the generation demodulation carrier signal of synchronizeing with pumping signal; Electrode gating module is mainly used in controlling current signal injection and voltage signal is measured; Signal processing module, for the signal of telecommunication is processed, obtains available imaging data; Image-forming data acquisition and communication module complete the collection to DC level, and the imaging data collecting is transferred to and on computer, carries out imaging.
Further, described inner balloon is by possessing better retractility and harmless silicon rubber film is made, inflate in endoscope tube by external inflation device, by the aperture on endoscope's tube wall by gas inject to being attached in the inner balloon of endoscope outside, make its expansion, in the time that measurement is complete, exit by external inflation device, inner balloon is returned to normal.
Further, described external inflation device adopts outside aerating gasbag, in the time that measurement is complete, only outside aerating gasbag need be pulled out and can make gas emit.
Further, described pressure transducer, for feeding back the pressure condition that inner balloon contacts with inner walls of rectums, is adjusted the aeration quantity to inner balloon according to the pressure data of its feedback, thereby realizes Self Adaptive Control for the enteric cavity of different sizes.
Further, described pressure transducer adopts medical micro-silicon pressure transducer.
Beneficial effect of the present invention is: the inflated type rectum electrical impedance characteristics checkout gear that the invention provides a kind of Wicresoft, this device has been realized the close contact of the devices such as detecting electrode and inner walls of rectums by inner balloon, can reflect the minor variations of rectal tissue pathological changes, find in time diseased region.This device judge whether mutation of rectum by measuring rectum resistance, and carries out three-dimensional imaging, can provide scientific basis for the tumor-localizing before confirmed cases resection operation and in performing the operation.
Brief description of the drawings
In order to make object of the present invention, technical scheme and beneficial effect clearer, the invention provides following accompanying drawing and describe:
Fig. 1 is the structural representation of device of the present invention;
Fig. 2 is measurement device schematic flow sheet of the present invention;
Fig. 3 is airbag aeration process of feedback schematic diagram in embodiment;
Fig. 4 is exploring electrode and pressure transducer schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Fig. 1 is the structural representation of device of the present invention, as shown in the figure, Wicresoft provided by the invention rectum electrical impedance characteristics checkout gear comprises that endoscope, inner balloon, exploring electrode, pressure transducer, signal occur and harvester, and endoscope-use is in realizing location and tentatively checking intrarectal situation; Exploring electrode and pressure transducer are fixedly mounted on endoscope's outer surface, and exploring electrode stimulates the signal of telecommunication and receives the signal of telecommunication that inner walls of rectums tissue returns for sending, and pressure transducer is for feeding back the pressure condition that inner balloon contacts with inner walls of rectums; Signal occur and harvester for generation of with receive electrical stimulation signal, and signal is carried out to respective handling; Inner balloon is arranged in endoscope, inflates, thereby the inner balloon in endoscope is expanded by external inflation device to endoscope, realizes the exploring electrode and pressure transducer and the inner walls of rectums close contact that are arranged in endoscope.
In the present embodiment, signal occurs and harvester is arranged on endoscope inside, comprises multifrequency constant flow module, electrode gating module, signal processing module, image-forming data acquisition and communication module; Multifrequency constant flow module is for generation of the sinusoidal wave form of different frequency, and realizes constant current output, and the generation demodulation carrier signal of synchronizeing with pumping signal; Electrode gating module is mainly used in controlling current signal injection and voltage signal is measured; Signal processing module, for the signal of telecommunication is processed, obtains available imaging data; Image-forming data acquisition and communication module complete the collection to DC level, and the imaging data collecting is transferred to and on computer, carries out imaging.
Inner balloon is by possessing better retractility and harmless silicon rubber film is made, inflate in endoscope tube by external inflation device, by the aperture on endoscope's tube wall by gas inject to being attached in the inner balloon of endoscope outside, make its expansion, in the time that measurement is complete, exit by external inflation device, inner balloon is returned to normal.The bottom that endoscope contacts with inner balloon and top edge portion are sealed with fluid sealant, prevent gas leakage.
Fig. 2 is measurement device schematic flow sheet of the present invention, as shown in the figure, the specific works flow process of this device is as follows: 1) adopt and by the inner balloon being attached in endoscope, exploring electrode is contacted with intestinal inwall, working pressure sensor feeds back exposure level, then regulate the inflated condition of air bag, 2) PC operation, sends instruction and occurs and harvester to signal, produces pumping signal; 3) pumping signal, through signal pre-processing circuit, converts analogue stimulus signal to; 4) signal generation and harvester obtain metering system by PC instruction, select exciting electrode group; 5), by selected metering system, control simulation switch, obtains the voltage signal between corresponding measurement electrode; 6) signal obtaining by signal filtering and analog digital conversion after, be transferred into external treatment device (PC) and further process; 7) according to metering system, rotation exciting electrode group, the corresponding measurement electrode group of rotation, records all signals successively; 8) when all excitations of corresponding metering system and after measuring and having combined, complete the electrical impedance images reconstruct on object dimensional space.
Exploring electrode and pressure transducer are fixedly mounted in the inner balloon of endoscope's outer surface, as shown in Figure 4.Fig. 3 is airbag aeration process of feedback schematic diagram in the present embodiment, as shown in the figure, pressure transducer can detect the pressure data of contact surface and data are sent to pressure detection circuit, simultaneously, microprocessor can regulate in real time according to these data, realizes the self adaptation inflation/deflation to air bag thereby control air bag drive circuit.
Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the claims in the present invention book limited range.

Claims (6)

1. the inflated type rectum electrical impedance characteristics checkout gear of a Wicresoft, it is characterized in that: this device comprises that endoscope, inner balloon, exploring electrode, pressure transducer, signal occur and harvester, and endoscope-use is in realizing location and tentatively checking intrarectal situation; Exploring electrode and pressure transducer are fixedly mounted in the inner balloon of endoscope's outer surface, exploring electrode stimulates the signal of telecommunication and receives the signal of telecommunication that inner walls of rectums tissue returns for sending, and pressure transducer is for feeding back the pressure condition that inner balloon contacts with inner walls of rectums; Signal occur and harvester for generation of with receive electrical stimulation signal, and signal is carried out to respective handling; Inner balloon is arranged in endoscope, inflates, thereby the inner balloon in endoscope is expanded by external inflation device to endoscope, realizes the exploring electrode and pressure transducer and the inner walls of rectums close contact that are arranged in endoscope.
2. the inflated type rectum electrical impedance characteristics checkout gear of a kind of Wicresoft according to claim 1, it is characterized in that: described signal occurs and harvester is arranged on endoscope inside, comprises multifrequency constant flow module, electrode gating module, signal processing module, image-forming data acquisition and communication module; Multifrequency constant flow module is for generation of the sinusoidal wave form of different frequency, and realizes constant current output, and the generation demodulation carrier signal of synchronizeing with pumping signal; Electrode gating module is mainly used in controlling current signal injection and voltage signal is measured; Signal processing module, for the signal of telecommunication is processed, obtains available imaging data; Image-forming data acquisition and communication module complete the collection to DC level, and the imaging data collecting is transferred to and on computer, carries out imaging.
3. the inflated type rectum electrical impedance characteristics checkout gear of a kind of Wicresoft according to claim 1, it is characterized in that: described inner balloon is by possessing better retractility and harmless silicon rubber film is made, inflate in endoscope tube by external inflation device, by the aperture on endoscope's tube wall by gas inject to being attached in the inner balloon of endoscope outside, make its expansion, in the time that measurement is complete, exit by external inflation device, inner balloon is returned to normal.
4. the inflated type rectum electrical impedance characteristics checkout gear of a kind of Wicresoft according to claim 3, is characterized in that: described external inflation device adopts outside aerating gasbag, in the time that measurement is complete, only outside aerating gasbag need be pulled out and can make gas emit.
5. the inflated type rectum electrical impedance characteristics checkout gear of a kind of Wicresoft according to claim 1, it is characterized in that: described pressure transducer is for feeding back the pressure condition that inner balloon contacts with inner walls of rectums, adjust the aeration quantity to inner balloon according to the pressure data of its feedback, thereby realize Self Adaptive Control for the enteric cavity of different sizes.
6. the inflated type rectum electrical impedance characteristics checkout gear of a kind of Wicresoft according to claim 1, is characterized in that: described pressure transducer adopts medical micro-silicon pressure transducer.
CN201410325576.5A 2014-07-04 2014-07-09 Minimally-invasive inflatable type rectum impedance characteristic detecting device Pending CN104161513A (en)

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CN201410317488 2014-07-04
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662410A (en) * 2016-01-12 2016-06-15 中国科学院电工研究所 Focused type electric impedance tomography signal detection system
CN107754085A (en) * 2016-08-22 2018-03-06 云南科威液态金属谷研发有限公司 Liquid metal electrode, electrod-array and therapeutic equipment based on hot gas driving
CN108236451A (en) * 2018-01-22 2018-07-03 北京先通康桥医药科技有限公司 The probe of examination per rectum device and examination per rectum device
CN110038441A (en) * 2019-05-22 2019-07-23 天津工业大学 The on-line detecting system of module integrity of membrane in a kind of doughnut membrane filtration processes
CN110141236A (en) * 2019-05-22 2019-08-20 重庆邮电大学 Frequency for impedance imaging becomes adaptive impedance collection control device and method
CN112326082A (en) * 2019-08-05 2021-02-05 深圳市亚泰光电技术有限公司 Anti-collision system for endoscope detection
CN112326083A (en) * 2019-08-05 2021-02-05 深圳市亚泰光电技术有限公司 Anti-collision device for endoscope detection

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728044A (en) * 1995-03-10 1998-03-17 Shan; Yansong Sensor device for spacial imaging of endoscopes
US6123718A (en) * 1998-11-02 2000-09-26 Polymerex Medical Corp. Balloon catheter
WO2000069376A1 (en) * 1999-05-18 2000-11-23 Silhouette Medical Inc. Surgical weight control device
CN1283086A (en) * 1997-11-04 2001-02-07 赛特莱恩技术有限公司 Video rectoscope
US20050266074A1 (en) * 2004-05-20 2005-12-01 Yoel Zilberstein Ingestible device platform for the colon
US20060004301A1 (en) * 2004-06-24 2006-01-05 Kasevich Raymond S Clinical application of electrical impedance tomography to characterize tissue
US20100010612A1 (en) * 2008-07-09 2010-01-14 Daniel Gelbart Lumen diameter and stent apposition sensing
US20100113939A1 (en) * 2006-10-02 2010-05-06 Hiroshi Mashimo Smart balloon catheter
WO2012174375A1 (en) * 2011-06-15 2012-12-20 Tidal Wave Technology, Inc. Radiofrequency ablation catheter device
WO2013018079A1 (en) * 2011-08-03 2013-02-07 Flip Technologies Limited A catheter and a system and a method for locating a catheter in a vessel

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728044A (en) * 1995-03-10 1998-03-17 Shan; Yansong Sensor device for spacial imaging of endoscopes
CN1283086A (en) * 1997-11-04 2001-02-07 赛特莱恩技术有限公司 Video rectoscope
US6123718A (en) * 1998-11-02 2000-09-26 Polymerex Medical Corp. Balloon catheter
WO2000069376A1 (en) * 1999-05-18 2000-11-23 Silhouette Medical Inc. Surgical weight control device
US20050266074A1 (en) * 2004-05-20 2005-12-01 Yoel Zilberstein Ingestible device platform for the colon
US20060004301A1 (en) * 2004-06-24 2006-01-05 Kasevich Raymond S Clinical application of electrical impedance tomography to characterize tissue
US20100113939A1 (en) * 2006-10-02 2010-05-06 Hiroshi Mashimo Smart balloon catheter
US20100010612A1 (en) * 2008-07-09 2010-01-14 Daniel Gelbart Lumen diameter and stent apposition sensing
WO2012174375A1 (en) * 2011-06-15 2012-12-20 Tidal Wave Technology, Inc. Radiofrequency ablation catheter device
WO2013018079A1 (en) * 2011-08-03 2013-02-07 Flip Technologies Limited A catheter and a system and a method for locating a catheter in a vessel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
霍旭阳等: "一种高精度生物电阻抗测量系统的设计", 《仪器仪表学报》 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105662410A (en) * 2016-01-12 2016-06-15 中国科学院电工研究所 Focused type electric impedance tomography signal detection system
CN105662410B (en) * 2016-01-12 2018-12-18 中国科学院电工研究所 A kind of focusing electrical impedance tomography signal detection system
CN107754085A (en) * 2016-08-22 2018-03-06 云南科威液态金属谷研发有限公司 Liquid metal electrode, electrod-array and therapeutic equipment based on hot gas driving
CN108236451A (en) * 2018-01-22 2018-07-03 北京先通康桥医药科技有限公司 The probe of examination per rectum device and examination per rectum device
CN110038441A (en) * 2019-05-22 2019-07-23 天津工业大学 The on-line detecting system of module integrity of membrane in a kind of doughnut membrane filtration processes
CN110141236A (en) * 2019-05-22 2019-08-20 重庆邮电大学 Frequency for impedance imaging becomes adaptive impedance collection control device and method
CN110141236B (en) * 2019-05-22 2022-11-25 重庆邮电大学 Frequency-varying self-adaptive impedance acquisition control device and method for impedance imaging
CN110038441B (en) * 2019-05-22 2023-10-24 天津工业大学 On-line detection system for membrane assembly integrity in hollow fiber membrane filtration process
CN112326082A (en) * 2019-08-05 2021-02-05 深圳市亚泰光电技术有限公司 Anti-collision system for endoscope detection
CN112326083A (en) * 2019-08-05 2021-02-05 深圳市亚泰光电技术有限公司 Anti-collision device for endoscope detection

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