阅读说明：本技术 一种胶囊内窥镜探测器及其探测方法 (Capsule endoscope detector and detection method thereof ) 是由 阚述贤 李文魁 宁浩 于 2020-05-26 设计创作，主要内容包括：本发明公布了一种胶囊内窥镜探测器及其探测方法,包括电源,手柄、控制板、前壳、后壳、进一步还包括传感器阵列,传感器阵列包括第一传感器阵列和第二传感器阵列,第一传感器阵列位于胶囊内窥镜探测器的前端,第二传感器阵列位于胶囊内窥镜探测器的末端,第一传感器阵列和第二传感器阵列内还各自设置至少一个磁传感器,用于探测磁性目标物的位置。本发明的胶囊内窥镜探测器及其探测方法,能方便准确的检测到磁性目标物是否留滞在体内,探测精度高,同时结构简单、组装方便,有利于产品的批量生产,稳定性高,提升了产品性能和竞争力。(The invention discloses a capsule endoscope detector and a detection method thereof, and the capsule endoscope detector comprises a power supply, a handle, a control panel, a front shell, a rear shell and a sensor array, wherein the sensor array comprises a first sensor array and a second sensor array, the first sensor array is positioned at the front end of the capsule endoscope detector, the second sensor array is positioned at the tail end of the capsule endoscope detector, and at least one magnetic sensor is respectively arranged in the first sensor array and the second sensor array and is used for detecting the position of a magnetic target object. The capsule endoscope detector and the detection method thereof can conveniently and accurately detect whether the magnetic target object is retained in the body, have high detection precision, simple structure and convenient assembly, are beneficial to the batch production of products, have high stability and improve the performance and the competitiveness of the products.)

1. The capsule endoscope detector comprises a power supply and is characterized by comprising a handle, a control panel, a front shell, a rear shell and a sensor array, wherein the sensor array further comprises a first sensor array and a second sensor array, the first sensor array is located at the front end of the capsule endoscope detector, the second sensor array is located at the tail end of the capsule endoscope detector, and the distance between the tail end of the first sensor array and the top end of the second sensor array is larger than or equal to 10 cm.

2. The capsule endoscopic detector of claim 1, wherein each of said first and second sensor arrays comprises at least one magnetic sensor, the magnetic sensor of the first sensor array being adapted to detect a magnetic target within the body; the magnetic sensors on the second sensor array are used for collecting the reference magnetic field and further performing difference operation with the magnetic field detected by the first sensor array.

3. The capsule endoscopic probe according to claim 1, wherein the X-axis, Y-axis, and Z-axis of the magnetic sensors of the first sensor array and the second sensor array are parallel and co-directional.

4. The capsule endoscopic probe of claim 1, wherein said first sensor array has a length of 50mm or less and a width of 18mm or less.

5. The capsule endoscopic probe according to claim 2, wherein said magnetic target is a capsule endoscope with built-in magnetic material.

6. The capsule endoscope detector of claim 2, wherein the control panel is further provided with a MCU, an LED lamp and a buzzer, the MCU collects data of the magnetic sensor in real time and performs calculation, and when a magnetic target is detected, the LED lamp and the buzzer perform sound and light prompt.

7. The capsule endoscopic probe of claim 1, wherein said handle has a length of 35mm or less and a width of 18mm or less.

8. The capsule endoscopic probe of claim 1, wherein the front and back shells are made of non-magnetic or weakly magnetic material.

9. The capsule endoscope probe of claim 1, wherein the front shell is provided with a plurality of protruding portions and the back shell is provided with a plurality of recessed portions, the protruding portions and the recessed portions cooperating to secure the front shell and the back shell.

10. The capsule endoscope probe of claim 9, wherein the edge of the protrusion is rounded or at a C-angle, and the edge of the groove portion is rounded or at a C-angle.

11. A detection method using the capsule endoscope detector of claim 1, characterized by comprising the steps of:

step S601: the first sensor array detects a first reference magnetic field as

Step S602: the first sensor array is close to the detection area and detects a first detection magnetic field asThe second sensor array detects a second detection magnetic field asThe actually detected measurement magnetic field after the deviation calculated in step S601 is cancelled；

Step S603: the MCU further judges the magnitude of the noise value beta of the measured magnetic field and the signal acquisition of the magnetic sensor;

step S604: when in use

Technical Field

The invention relates to the field of medical instruments, in particular to a capsule endoscope detector and a detection method thereof.

Background

The capsule endoscope is used as a medical instrument, can spy the inside of a body, can observe images in the body, and greatly improves the reliability of the diagnosis of digestive tract diseases. After the capsule endoscope normally works in a human body for a period of time, the capsule endoscope needs to be discharged out of the body, but the capsule can not be smoothly discharged or can not be discharged in time due to the difference of the digestive tracts of the human body, so that the position of the capsule endoscope needs to be detected, the working state of the capsule endoscope is convenient to know, and the use safety is ensured.

At present, two technical means are mainly used for positioning, one is that an X-ray machine is adopted to irradiate the position of a capsule endoscope, the detection mode can generate radiation in the detection process, the health of a human body is damaged, and the equipment is complex; another is to wirelessly detect the location of the capsule, which cannot be detected and has poor measurement accuracy in the event of a dead capsule battery.

In view of the problems encountered by the capsule endoscope, the invention provides the capsule endoscope detector and the detection method, which can conveniently and accurately detect whether the capsule endoscope after being taken for a period of time is discharged out of a body or not, and have high detection precision; meanwhile, the structure is simple, the assembly is convenient, the batch production of products is facilitated, the stability is high, and the performance and the competitiveness of the products are improved.

Disclosure of Invention

The invention provides a capsule endoscope detector and a detection method thereof, aiming at solving the problem that the position of a capsule endoscope in a body cannot be accurately detected in the prior art.

In a first aspect, the technical solution of the capsule endoscope probe of the present invention is as follows:

the capsule endoscope detector comprises a power supply, and further comprises a sensor array, wherein the sensor array further comprises a first sensor array and a second sensor array, the first sensor array is located at the front end of the capsule endoscope detector, the second sensor array is located at the tail end of the capsule endoscope detector, and the distance between the tail end of the first sensor array and the top end of the second sensor array is larger than or equal to 10 cm.

Furthermore, each of the first sensor array and the second sensor array comprises at least one magnetic sensor, and the magnetic sensors on the first sensor array are used for detecting magnetic targets in the organism; the magnetic sensors on the second sensor array are used for collecting the reference magnetic field and further performing difference operation with the magnetic field detected by the first sensor array.

Furthermore, the X axis, the Y axis and the Z axis of the magnetic sensors of the first sensor array and the second sensor array are parallel in the same direction.

Further, the length of the first sensor array is less than or equal to 50mm, and the width of the first sensor array is less than or equal to 18 mm.

Further, the magnetic target can be a capsule endoscope with built-in magnetic materials.

Furthermore, the control panel still be equipped with MCU, LED lamp and bee calling organ, MCU gathers magnetic sensor data in real time and carries out the operation, after detecting the magnetic target thing, carries out acousto-optic suggestion through LED lamp and bee calling organ.

Further, the length of the handle is less than or equal to 35mm, and the width of the handle is less than or equal to 18 mm.

Furthermore, the front shell and the rear shell are made of non-magnetic or weak-magnetic materials.

Furthermore, the front shell is provided with a plurality of protruding parts, the rear shell is provided with a plurality of groove parts, and the protruding parts and the groove parts are matched with each other to fix the front shell and the rear shell.

Further, the edge of the protruding portion is a rounded corner or a C-shaped corner, and the edge of the groove portion is a rounded corner or a C-shaped corner.

In a second aspect, the present invention provides a detection method using the capsule endoscope detector of the first aspect, comprising the steps of:

step 1: the first sensor array detects a first reference magnetic field as

The second sensor array detects a second reference magnetic field ofThen the equipment deviation after offsetting the influence of the earth magnetic field is；

Step 2: the first sensor array is close to the detection area and detects a first detection magnetic field asThe second sensor array detects a second detection magnetic field as

The actually detected measuring magnetic field after the deviation calculated in step 1 is cancelled；

And step 3: the MCU further judges the magnitude of the noise value beta of the measured magnetic field and the signal acquisition of the magnetic sensor;

and 4, step 4: when in useAnd if not, returning to the step 2 to continue the detection.

The capsule endoscope detector and the detection method thereof can conveniently and accurately detect whether the capsule endoscope is left in the body, and have high detection precision; meanwhile, the structure is simple, the assembly is convenient, the batch production of products is facilitated, the stability is high, and the performance and the competitiveness of the products are improved.

Drawings

FIG. 1: the capsule endoscope detector is overall schematic.

FIG. 2: the invention relates to an internal structure diagram of a capsule endoscope detector.

FIG. 3: another angle schematic of the capsule endoscope probe of the present invention.

FIG. 4: the capsule endoscope detector is assembled schematically.

FIG. 5: the capsule endoscope detector is an exploded schematic view.

FIG. 6: the invention relates to a flow chart of a detection method of a capsule endoscope.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Description of the drawing reference numbers: the device comprises a handle 1, a detection area 2, a front shell 3, a rear shell 4, a control panel 5, a flexible circuit board 6, a detection surface 7, an assembling part 8, a groove part 9, a protruding part 10, a self-tapping screw 11, a battery bin 12, a dry battery 13, a groove 14, a magnetic sensor 15, a holding part 16, a first sensor array 17, a second sensor array 18, a MCU19, a buzzer 20, an LED indicator light 21 and a contrast magnetic sensor 22.

Referring to fig. 1 to 4, the capsule endoscope detector includes a handle 1, a detection area 2, a front shell 3, a rear shell 4, and a control board 5 accommodated in the capsule endoscope detector, wherein the front shell 3 and the rear shell 4 are made of non-magnetic or weakly magnetic materials, including but not limited to plastics, austenite metals, copper, and the like. With further reference to fig. 5, which is an exploded view of the capsule endoscope probe of the present invention, a first sensor array 17 is located at the probe region 2, a second sensor array 18 is located at the handle region, the control board 5 is electrically connected to the first sensor array 17 and the second sensor array 18 through the flexible circuit board 6, and a contrast magnetic sensor 22 is further provided at the distal end of the second sensor array 18 for measuring a magnetic field far from the probe region.

The Control panel 5 is further provided with a Micro Control Unit (MCU) 19, a buzzer 20 and an LED indicator 21, the MCU19 collects data collected by the magnetic sensor 15 in real time and performs calculation, and when a magnetic target is detected, the buzzer 20 and the LED indicator 21 perform acousto-optic prompt, and the magnetic target can be a capsule endoscope with a built-in magnetic material.

The detection surface 7 is positioned on the surface area of the rear shell 4, the assembling part 8 is used for assembling and positioning the front shell 3 and the rear shell 4, and the battery chamber 12 is positioned on the handle area of the capsule endoscope detector.

The first sensor array 17 and the second sensor array 18 each comprise at least one magnetic sensor 15, the magnetic sensors 15 on the first sensor array 17 are used for detecting magnetic targets in organisms, and the larger the number of the magnetic sensors 15 is, the wider the detection range is; the magnetic field collected by the magnetic sensors 15 on the second sensor array 18 is used as a reference magnetic field for performing a difference operation with the magnetic field detected by the first sensor array.

The two surfaces of the first sensor array 17 and the two surfaces of the second sensor array 18 are parallel to each other, and the X-axis, the Y-axis, and the Z-axis of the magnetic sensors of the first sensor array 17 and the second sensor array 18 are parallel to each other in the same direction, so that the smaller the angular deviation of each axis, the lower the influence on the detection accuracy.

The distance between the end of the first sensor array 17 and the top end of the second sensor array 18 should be greater than or equal to 10cm, and theoretically, the farther the second sensor array 18 is away from the detection region, the less it is affected by the magnetic target in the detection region, and the higher the detection accuracy, and the magnetic target includes but is not limited to a capsule endoscope with a built-in magnetic material.

The handle 1 is further provided with a battery compartment 12, the battery compartment 12 can contain two dry batteries 13, the dry batteries 13 can be No. 7 batteries or No. 5 batteries, a groove 14 convenient for storing and taking the dry batteries 13 is arranged at the positive pole of the battery compartment 12, the length of the groove 14 is less than or equal to 10mm, the depth of the groove is less than or equal to 2mm, the width of the groove 14 is less than or equal to 1mm, two holding parts 16 are further arranged in the depth direction of the groove 14, the size of the groove 14 is smaller than the positive pole face of the dry batteries 13, the dry batteries 13 are prevented from being clamped into the groove 14, and when the finger tips are placed into the groove 14 along the holding parts 16, the dry batteries.

Preferably, the length of the first sensor array 17 is not more than 50mm, the width is not more than 18mm, the length of the handle 1 is not more than 35mm, the width is not more than 18mm, the height of the handle 1 is the same as that of the detection area 2, the front part of the detection area 2 and the front part of the handle 1 are in the same plane and are distributed in an arc shape, the detection surface 7 of the detection area 2 and the back surface of the handle 1 are in the same plane and are distributed in an arc shape, and the capsule endoscope detector is convenient to hold on the whole.

The control panel 5 is located at the middle of the handle 1, and the control panel 5 controls the operation state of the indicator light, such as the sound of the buzzer 20, the supply of voltage, and processes the magnetic field intensity data detected by the magnetic sensor. The sensor array 6 is positioned at the bottom of the detection area 2 and is positioned as close to the detection surface 7 as possible, the sensor array 6 comprises a magnetic sensor 15, the overall height of the magnetic sensor 15 is less than or equal to 1mm, the vertical distance between the magnetic sensor 15 and the detection surface 7 is less than or equal to 3mm, and whether a magnetic capsule endoscope exists in a human body can be sensed through the magnetic sensor 15. As can be understood by those skilled in the art, the magnetic sensor 15 can detect the magnetic field strength within a limited distance, and the magnetic field strength detected closer to the magnetic field is stronger, the sensor array 6 and the control board 5 are designed separately, so that the height of the components on the sensor array 6 is less than or equal to 1mm, thereby ensuring that the magnetic sensor 15 is as close to the detection surface 7 as possible, and realizing a larger detection range.

The assembling portion 8 is used for assembling and positioning the front shell 3 and the rear shell 4, a plurality of protruding portions 10 are arranged on the front shell 3, a plurality of groove portions 9 are arranged on the rear shell 4, the groove portions 9 are matched with the protruding portions 10 of the front shell 3, the front shell 3 and the rear shell 4 are assembled and positioned, and the matched gap is between 0.05mm and 0.1 mm. Specially, the edge of protruding portion 10 is fillet or C angle, the edge of recessed portion 9 is fillet or C angle, the setting of fillet and C angle makes things convenient for protruding portion 10 to assemble recessed portion 9 smoothly, can realize preceding shell 3 and backshell 4's rapid Assembly, and because assembly portion 8's spacing, shell 3 can not misplace with backshell 4 before guaranteeing, thereby guarantee the outward appearance uniformity, when self-tapping screw 11 is locked into to protruding portion 10 and recessed portion 9, because the cooperation of recessed portion 9 and protruding portion 10, guarantee that self-tapping screw 11 locks can not the off normal, because the inboard of recessed portion 9 has blocked the outside of protruding portion 10 again, thereby guarantee that protruding portion 10 can not ftracture, security and the intensity of whole part when further guaranteeing self-tapping screw 11 to lock.

It will be understood by those skilled in the art that the recessed portion 9 and the protruding portion 10 may also adopt other shapes of snap structures and shapes, and the shapes are not limited to circular, and may also be prismatic, square, etc., which are common knowledge in the art and will not be described herein again.

Referring to fig. 6, a flow chart of the detection method of the present invention is shown, and the working principle of the detection method of the present invention is as follows: step S601: when the detector is in a geomagnetic-only environment, the first reference magnetic field detected by the first sensor array 17 is set as

Let the second reference magnetic field detected by the reference magnetic sensor 22 on the second sensor array 18 be

Then the equipment deviation after offsetting the influence of the earth magnetic field is

The intrinsic deviation of the device is a relatively stable value; step S602: when the magnetic target object is close to the detection area, the magnetic field detected by the first sensor array 17 changes due to the influence of the magnetic field of the magnetic target object because the first sensor array 17 is close to the magnetic target object, and the magnetic field influence is small and negligible because the second sensor array 18 is far away from the magnetic target object, at this time, the first sensor array 17 detects the first detection magnetic field as

The control magnetic sensor 22 on the second sensor array 18 detects a second detected magnetic field as

The actually detected measurement magnetic field after the deviation calculated in step S601 is cancelled

Step S603, the MCU19 further judges the magnitude of the noise value β of the measured magnetic field and the signal acquisition of the magnetic sensor, and step S604, when the noise value is less than the threshold value, the MCU19 judges the magnitude of the noise value β of the measured magnetic field and the signal acquisition of the magnetic sensorIf so, the magnetic target object is determined to be present in the detection region, otherwise, the step S602 is returned to continue the detection.

The inherent device deviation in the above embodiments is caused by zero offset and installation angle deviation of the magnetic sensor itself, and is corrected when the device is powered on and initialized, and in the correction process, the device needs to be placed in an environment with only a geomagnetic field, that is, the device cannot be affected by magnetic fields other than the geomagnetic field, and a certain difference exists between different devices, and for the same detection device, the inherent device deviation remains relatively stable.

The capsule endoscope detector can conveniently and accurately detect whether the capsule endoscope is remained in the body; meanwhile, the structure is simple, the assembly is convenient, the batch production of products is facilitated, the stability is high, and the performance and the competitiveness of the products are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.