Positioning device for non-invasive detection system in colon cavity
A detection system and positioning device technology, which is applied in the fields of in vivo radio detectors, diagnostic recording/measurement, medical science, etc., and can solve problems such as incapability of accurately locating capsules and inability to locate colon segments
Active Publication Date: 2016-10-05
SHANGHAI JIAOTONG UNIV
View PDF8 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to the compact structure of the human intestine and the fluidity of the small intestine, even if the three-dimensional coordinates of the capsule are obtained, it is impossible to accurately locate which intestinal segment the capsule is in.
Existing positioning systems basically do not have the ability to locate colon segments
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Such as figure 1 with figure 2 As shown, this embodiment includes: 4 excitation coils, 4 magnetic field strength detection devices, and a metal detection capsule set in the body. The magnetic field strength detection device includes an excitation source, a power amplifier, and a signal acquisition device connected in sequence. Each excitation coil generates a stable magnetic field under the excitation of the excitation source, which makes the metal detection capsule generate eddy current. The magnetic field generated by the eddy current reacts to the magnetic field generated by the excitation coil, and the signal collector collects The change of the magnetic field strength to each excitation coil causes the impedance change signal of the GMR magnetic field sensor in the detection device, and the signal is transmitted to the positioning algorithm research module through the signal conditioning storage module to determine the time node of the capsule passing the colon.
[...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a colon intracavity non-wound detection system positioning device for diagnosis. The colon intracavity non-wound detection system positioning device comprises excitation coils, magnetic field intensity detection devices and a metal detection capsule, wherein the excitation coils and the magnetic field intensity detection devices are arranged in an in-vitro way, the metal detection capsule is arranged in an in-vivo way, each magnetic field intensity detection device comprises an excitation source, a power amplifier, a signal collector, a signal conditioning and storage module and a positioning algorithm research module which are sequentially connected, each excitation coil is excited by the corresponding excitation source to generate a stable magnetic field, then the metal detection capsule can generate eddy, a magnetic filed generated by the eddy reacts on the magnetic field generated by the excitation coils, the signal collector is used for collecting a signal of the impedance change of a GMR (giant magneto resistive) magnetic field sensor in each detection device caused by the change of the magnetic field intensity of each excitation coil, the signal is transmitted to each positioning algorithm research module by the corresponding signal conditioning and storage module, and each positioning algorithm research module is used for pre-processing the signal, and then performing the main composite analysis and independent component analysis, so as to determine the time node of the capsule passing through a colon. The colon intracavity non-wound detection system positioning device has the advantage that the position of the capsule in the colon section can be effectively positioned.
Description
Technical field [0001] The invention relates to a measurement field used for diagnostic purposes, in particular to a positioning device for a non-invasive detection system in a colon cavity. Background technique [0002] With the acceleration of people's life rhythm and the continuous change of dietary structure, digestive diseases such as constipation and insufficient gastrointestinal motility are on the rise year by year. At present, the traditional diagnosis method for such diseases is manometry: a manometry catheter is used to measure the pressure inside the large intestine, which is positioned by a wired endoscope and clamped on the gastrointestinal mucosa. This type of method brings inconvenience and great pain to the patient, and increases the probability of gastrointestinal perforation and cross-infection. [0003] In 2005, the SmartPill pH.p capsule produced by SmartPill in the United States was put into clinical trials and passed the certification of the US Food and Drug...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/07A61B5/06A61B1/00
CPCA61B5/062
Inventor 颜国正许飞赵凯鲁丽王志武姜萍萍刘大生
Owner SHANGHAI JIAOTONG UNIV