CN108065905B - Capsule endoscope - Google Patents
Capsule endoscope Download PDFInfo
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- CN108065905B CN108065905B CN201611103930.5A CN201611103930A CN108065905B CN 108065905 B CN108065905 B CN 108065905B CN 201611103930 A CN201611103930 A CN 201611103930A CN 108065905 B CN108065905 B CN 108065905B
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- 239000002775 capsule Substances 0.000 title claims abstract description 135
- 230000004323 axial length Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 12
- 238000001839 endoscopy Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000001035 gastrointestinal tract Anatomy 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910000828 alnico Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 235000012771 pancakes Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 208000021795 small intestine disease Diseases 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/04—Instruments 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
- A61B1/041—Capsule endoscopes for imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00006—Operational features of endoscopes characterised by electronic signal processing of control signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/00131—Accessories for endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/00147—Holding or positioning arrangements
- A61B1/00158—Holding or positioning arrangements using magnetic field
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/04—Instruments 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
- A61B1/045—Control thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments 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
- A61B1/06—Instruments 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 with illuminating arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/07—Endoradiosondes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Radiology & Medical Imaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Endoscopes (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention belongs to the field of medical equipment, and provides a capsule endoscope which comprises a magnet which is arranged in a capsule endoscope shell and is driven by an external magnetic field to drive the capsule endoscope to move, wherein the magnet is a rod-shaped magnet, the length-diameter ratio of the rod-shaped magnet is 2 or less and L/D or less than 10, L is the axial length of the rod-shaped magnet, and D is the radial length of the rod-shaped magnet. According to the capsule endoscope, the magnet in the capsule endoscope is designed to be in the rod-shaped structure with the length-diameter ratio of 2 & lt & gt L/D & lt & gt 10, compared with the defects that the magnetic stress of a cake-shaped magnet in the prior art is small and the movement of the capsule endoscope is not easy to control, the magnetic stress and moment of the magnet are improved, the movement sensitivity of the capsule endoscope is increased, the external magnetic field can drive the rod-shaped magnet more conveniently so as to control the movement of the capsule endoscope in a subject, more accurate and rapid positioning is provided for capsule endoscopy, and the capsule endoscopy is convenient to carry out.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a capsule endoscope.
Background
Currently, a subject can take an image in the digestive tract through oral administration of a capsule endoscope with an image acquisition and wireless communication device, and a doctor receives the image shot by the capsule endoscope by using an external instrument to know the digestive tract condition of the subject, so that the condition of the subject is diagnosed. The capsule endoscopy has the advantages of convenient examination, no wound, no lead, no pain, no cross infection, no influence on the normal work of patients and the like, expands the visual field of the digestive tract examination, overcomes the defects of poor tolerance, inapplicability to the aged and the weak, critical illness and the like of the traditional insertion endoscopy, and can be used as a first-choice method for diagnosing digestive tract diseases, especially small intestine diseases.
Motion control of a capsule endoscope in a human body plays an important role in capsule endoscopy, and a capsule endoscope having a built-in magnet is currently used as a control method by controlling a magnetic field generated by a magnetic field source provided outside a subject.
However, in the current magnetic control capsule endoscope design, the magnet arranged in the capsule endoscope adopts a cake-shaped structure design, the magnetic stress of the cake-shaped structure is small, and the movement control is not easy to be carried out, and if the magnetic stress of the capsule endoscope is improved, the following methods can be adopted: increasing the magnetic field generated by the magnetic field source outside the subject, but doing so increases costs; increasing the weight of the magnet disposed within the capsule endoscope results in an increase in the weight of the capsule endoscope, which is detrimental to the motion control of the capsule endoscope.
Disclosure of Invention
The invention provides a capsule endoscope, which aims to solve the problems that the magnetic stress of a cake-shaped magnet of the existing magnetic control capsule endoscope is small and the movement of the capsule endoscope is not easy to control.
The invention discloses a capsule endoscope, which comprises a magnet which is arranged in a capsule endoscope shell and is driven by an external magnetic field to drive the capsule endoscope to move, wherein the magnet is a rod-shaped magnet, the length-diameter ratio of the rod-shaped magnet is 2 or less and L/D or less than 10, L is the axial length of the rod-shaped magnet, and D is the radial length of the rod-shaped magnet.
According to the capsule endoscope, the magnet in the capsule endoscope is designed to be in the rod-shaped structure with the length-diameter ratio of 2 & lt & gt L/D & lt & gt 10, compared with the defects that the magnetic stress of a cake-shaped magnet in the prior art is small and the movement of the capsule endoscope is not easy to control, the magnetic stress and moment of the magnet are improved, the movement sensitivity of the capsule endoscope is increased, the external magnetic field can drive the rod-shaped magnet more conveniently so as to control the movement of the capsule endoscope in a subject, more accurate and rapid positioning is provided for capsule endoscopy, and the capsule endoscopy is convenient to carry out.
Drawings
FIG. 1 is a schematic view of a capsule endoscope provided by the present invention;
FIG. 2 is a schematic view of another capsule endoscope provided by the present invention;
FIG. 3 is a schematic view of a still further capsule endoscope provided by the present invention;
FIG. 4 is a schematic view of a still further capsule endoscope provided by the present invention;
FIG. 5 is a schematic view of a still further capsule endoscope provided by the present invention;
fig. 6 is a specific numerical list of the magnetic force F and the torque T applied to the rod-shaped magnet 6 of fig. 1 to 5 when the length-diameter ratio (L/D) is gradually increased without changing the volume;
FIG. 7 is a graph showing the increasing magnetic force F applied to the rod-shaped magnet 6 of FIG. 6 with increasing length-to-diameter ratio (L/D);
FIG. 8 is a graph showing the moment T applied to the rod-shaped magnet of FIG. 6 increasing with increasing length-to-diameter ratio (L/D);
FIG. 9 is a schematic diagram showing the calculation of the magnetic force F applied to the rod-shaped magnet 6 in FIGS. 1-5;
fig. 10 is a schematic diagram of calculation of the moment T of the rod-shaped magnet 6 in fig. 1 to 5.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
According to the capsule endoscope provided by the invention, the magnetic force and moment of the magnet are improved by adopting the design of the rod-shaped structure with the length-diameter ratio of 2 & lt, L/D & lt, 10.
The capsule endoscope provided by the invention as shown in fig. 1 is a schematic structural view, and comprises:
a capsule endoscope housing 1; an image acquisition module 2 for acquiring a working image; a communication module 3 for performing wireless communication with an external device of the capsule endoscope; the control module 4 is used for controlling the image acquisition module 2 and the communication module 3 to work in a coordinated manner; a power module 5 for providing working power for the image acquisition module 2, the communication module 3 and the control module 4; and a rod-shaped magnet 6 which is controlled by an external magnetic field and drives the capsule endoscope to move. Wherein, image acquisition module 2, communication module 3, control module 4, power module 5 and bar magnet 6 set up in the inside space of capsule endoscope casing 1.
In the embodiment of the invention, after the capsule endoscope is swallowed by a subject and enters the body, the control module 4 of the capsule endoscope receives an activation signal sent by an external device of a workstation positioned outside the subject through the communication module 3 to activate a working mode, the image acquisition module 2 is controlled to perform image acquisition work, the image acquisition module 2 comprises an illumination submodule (not shown), the illumination submodule provides illumination conditions required by the image acquisition work, the acquired image information is processed by the control module 4 and then is sent to an external device image receiver outside the subject through the communication module 3, and external devices such as an image workstation are used for performing capsule endoscopy.
In the embodiment of the present invention, the subject is externally provided with an external magnetic field source 7, see fig. 9 to 10, and the external magnetic field source 7 spatially forms an external magnetic field with which the rod-shaped magnet 6 fixed in the capsule endoscope can act. The magnet is rod-shaped or pie-shaped, which differs in the size range of the ratio L/D between the axial length L of the magnet and the radial length D of the magnet. Referring to fig. 6, when the values of L/D are 0.04, 0.10, 0.29, and 0.81, the magnet at this time can be considered to be in a cake shape. When the values of L/D are 2.3,4.22,6.5,9.09, 12.7, 16.7, the magnet at this time can be considered to be a rod-shaped magnet. Considering that the actual axial length L of the capsule endoscope is generally not greater than 25 mm, two values of L of 25 mm and 30 mm in fig. 6 are not considered. In summary, when the value range of L/D is 2+.L/D+.10, the magnet is a rod magnet.
Referring to fig. 7 in combination with fig. 6, in fig. 6, as the ratio of L/D increases gradually while the volume of the magnet remains unchanged, i.e. the shape of the magnet changes from a pie shape (ratio of L/D is less than 1) to a rod shape (ratio of L/D is greater than 1), the force F exerted on the magnet in fig. 7 tends to increase gradually. It is estimated from this that the magnetic force received by the rod-like shape is greater than that received by the disk-like shape by the same external magnetic field for the same volume of magnet. In fig. 7, the value of the magnetic force F is negative, which indicates that the magnet and the external magnetic field attract each other.
Referring to fig. 8 in combination with fig. 6, in fig. 6, when the volume of the magnet remains unchanged, as the ratio of L/D increases gradually, that is, the shape of the magnet changes from a cake shape (the ratio of L/D is smaller than 1) to a rod shape (the ratio of L/D is larger than 1), the moment N applied to the magnet in fig. 8 tends to increase gradually. It is estimated from this that the moment received by the rod-like shape is greater than that received by the cake-like shape by the same external magnetic field for the same volume of magnet. The moment value T in FIG. 8 is also negative because the magnetic force F in FIG. 7 is negative
Fig. 9 schematically shows a schematic view of the rod-shaped magnet 6 subjected to the magnetic force of the external magnetic field source 7, and each magnetic force applied to the magnet in fig. 7 is measured with the volume of the magnet being 76.05 cubic millimeters and the distance from the center of the magnet to the upper end face of the external magnetic field source 7 being 100 mm.
Fig. 10 schematically shows a schematic view of the moment N of the rod magnet 6 subjected to the external magnetic field source 7; the respective moments to which the magnets are subjected in fig. 8 are measured exactly at a volume of 76.05 cubic mm for the magnets and a distance of 75mm for the rod-shaped magnets 6 from the side of the external magnetic field source 7.
In summary, the advantage of the rod magnet 6 over the pancake magnet is that: the magnetic stress of the rod-shaped magnet 6 is related to the magnetic field and the gradient of the magnetic field of the position of the capsule endoscope, and the equivalent magnetic field gradient of the position of the rod-shaped magnet 6 is increased due to the length advantage of the rod-shaped magnet, so that larger traction force can be obtained, and the larger traction force means that the capsule endoscope can be dragged to move at a longer distance or can be stably dragged to move at the same distance; the torsion of the rod-shaped magnet 6 is positively correlated with the equivalent moment arm, and the rod-shaped magnet has larger equivalent moment arm due to the length advantage, so that larger torsion is obtained, and when the movement steering of the capsule endoscope needs to be controlled, the larger torsion means that the movement steering of the capsule endoscope can be completed within a smaller distance, and the steering effect is better.
In the embodiment of the invention, the external magnetic field source and the rod-shaped magnet 6 in the capsule endoscope comprise hard magnets and soft magnets, wherein the hard magnets can be made of hard magnetic materials such as ferrite, alnico, neodymium iron boron, samarium cobalt and the like; the soft magnetic body may be an electromagnet, and the distribution of the magnetic field formed by the temporary magnet is changed by energization, and the voltage or current is adjusted, so that the rod-shaped magnet 6 in the capsule endoscope can obtain a required operating power from the power supply module 5 if it is an electromagnet.
According to the capsule endoscope, compared with the defects that the magnetic stress of the cake-shaped magnet is small and the movement of the capsule endoscope is not easy to control in the prior art, the magnetic stress of the magnet is improved, the movement sensitivity of the capsule endoscope is increased, the weight of the magnet is reduced, the cost of the capsule endoscope is reduced, and the external magnetic field can drive the rod-shaped magnet 6 more conveniently so as to control the movement of the capsule endoscope in a subject, so that more accurate and rapid positioning is provided for the capsule endoscope inspection, and the capsule endoscope inspection is convenient to carry out.
In the capsule endoscope, the number of the rod-shaped magnets 6 is more than 1, and a plurality of the rod-shaped magnets 6 are arranged around the central axis of the capsule endoscope along the length direction as a center, so that the stress of the capsule endoscope is improved and balanced, and the motion control effect of the capsule endoscope is improved.
As a preferred embodiment of the present invention, the rod-like magnet 6 is disposed along the length direction of the capsule endoscope. The length direction of the rod-shaped magnet 6 is the direction of the maximum magnetic stress, the rod-shaped magnet 6 is arranged along the length direction of the capsule endoscope, so that the maximum magnetic stress is obtained, and in the same time, the capsule endoscope can obtain longer movement distance or larger steering than the cake-shaped magnet in the prior art, the movement sensitivity of the capsule endoscope is improved, and the capsule endoscope can be controlled to obtain the optimal control effect.
Further, the rod-shaped magnet 6 is arranged on the central axis along the length direction of the capsule endoscope, as shown in fig. 2, each module in the capsule endoscope shell 1 can be matched and fixed with the rod-shaped magnet 6, and the weight of the capsule endoscope can be symmetrical along the central axis along the length direction; in addition, as the rod-shaped magnet 6 is arranged on the central axis, the capsule endoscope is stressed uniformly in the movement process of different directions, and the external magnetic field is more convenient for driving the rod-shaped magnet 6 to drive the capsule endoscope to move.
As an embodiment of the present invention, the rod-like magnet 6 is arranged on a non-central axis along the length direction of the capsule endoscope in such a way that the individual modules within the capsule endoscope housing 1 may be less or not required to change their shape, structure, and fit the mounting, fixing of the rod-like magnet 6.
The rod-shaped magnet 6 is preferably of a one-stage structure in the drawings, that is, the rod-shaped magnet 6 has the same shape and size in each cross section perpendicular to the longitudinal direction. It will be appreciated that when the rod-shaped magnet 6 is of one-piece construction, its cross-sectional shape may be of various shapes including, for example, but not limited to, rectangular, square, circular, oval and triangular. In addition, the rod-shaped magnet 6 can also be of a multi-section structure, the shape and/or the size of each section of cross section are different, the multi-section structure of the rod-shaped magnet 6 can be adapted to the different shapes of each module in the capsule endoscope shell 1, the installation space of the rod-shaped magnet 6 is increased, the installation and the fixation of the rod-shaped magnet 6 in the capsule endoscope are facilitated, the specific structure can be set according to the actual situation, and the method is not particularly limited.
As an embodiment of the present invention, the cross-sectional shape of the rod-shaped magnet 6 is a circle, an ellipse, or a polygon such as a triangle, a rectangle, etc., which facilitates the fixation of the rod-shaped magnet 6 in the capsule endoscope.
Preferably, the cross section of the rod-shaped magnet 6 is elliptical, the rod-shaped magnet 6 can have a larger contact surface, the rod-shaped magnet 6 is convenient to fix in the capsule endoscope, and the rod-shaped magnet 6 is not easy to rotate relative to the capsule endoscope to cause abrasion.
As an embodiment of the present invention, the rod-shaped magnet 6 is fixed in the capsule endoscope housing through a molding structure in the capsule endoscope housing, or is fixedly connected with the capsule endoscope housing through a fixing component, after magnetic stress is obtained, the rod-shaped magnet 6 drives the whole capsule endoscope to move by driving the capsule endoscope housing 1 to move, the setting mode of the rod-shaped magnet 6 is simple and convenient, the rod-shaped magnet 6 can be fixed through the capsule endoscope housing 1, and the installation of internal components is convenient.
As an embodiment of the present invention, the molded structure in the capsule endoscope housing 1 is specifically a groove, a cavity, or a snap structure that matches the shape of the rod-like magnet 6. As shown in fig. 3, which shows a schematic structural diagram of a capsule endoscope in the embodiment of the present invention, a rod-shaped magnet 6 is fixed in an integrated groove body which is matched with the shape of the rod-shaped magnet 6 in a capsule endoscope shell 1, and the rod-shaped magnet 6 can drive the capsule endoscope to move through the capsule endoscope shell 1 without a connecting module; in the schematic structural view of the capsule endoscope shown in fig. 4, the rod-shaped magnet 6 is fixed in the capsule endoscope housing 1 by a fastening structure, and is not easy to fall loose or fall off under the fastening structure.
As an embodiment of the present invention, as shown in the schematic structural diagram of the capsule endoscope in fig. 5, the fixing member is composed of a capsule endoscope housing 1 and a mounting plate of an image acquisition module 2, a communication module 3, a control module 4 or a power module 5, the mounting plate and the capsule endoscope housing 1 are fixed to each other, the rod-shaped magnet 6 and the capsule endoscope housing 1 are fixed to each other by fixing the rod-shaped magnet and the mounting plate to each other, the mounting plate may have an opening matching the shape of the rod-shaped magnet 6 or fix the rod-shaped magnet 6 by means of gluing, fastening, screwing or the like, the mounting plate and the capsule endoscope housing 1 are fixed to each other by means of gluing, fastening, screwing or the like, in which the internal components of the capsule endoscope can be assembled into one body more tightly, the movements of the modules and the capsule endoscope housing are kept consistent, the loosening caused by the inconsistency of the movements of the components is prevented, and the rod-shaped magnet 6 drives the movement of the whole capsule endoscope by the mounting plate of the module after the magnetic force is obtained.
In summary, according to the capsule endoscope provided by the invention, the magnet in the capsule endoscope is designed to have a rod-shaped structure with the length-diameter ratio of 2 less than or equal to L/D less than or equal to 10, compared with the defects that the magnetic stress of a cake-shaped magnet is small and the movement of the capsule endoscope is not easy to control in the prior art, the magnetic stress and moment of the magnet are improved, the movement sensitivity of the capsule endoscope is increased, and the external magnetic field can drive the rod-shaped magnet more conveniently so as to control the movement of the capsule endoscope in a subject, so that more accurate and rapid positioning is provided for capsule endoscopy, and the capsule endoscopy is convenient to carry out.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The utility model provides a capsule endoscope, includes setting up in capsule endoscope casing, drives the magnet of capsule endoscope motion, its characterized in that by external magnetic field drive: the magnet is a rod-shaped magnet, and the length-diameter ratio of the rod-shaped magnet is 2 & lt, L/D & lt, 2.3 under the condition that the volume of the rod-shaped magnet is kept unchanged, wherein L is the axial length of the rod-shaped magnet, and D is the radial length of the rod-shaped magnet.
2. The capsule endoscope of claim 1, wherein the rod-shaped magnet is disposed along a length of the capsule endoscope.
3. The capsule endoscope of claim 2, wherein the rod-shaped magnet is disposed on a central axis along a length direction of the capsule endoscope.
4. The capsule endoscope of claim 2, wherein the rod-shaped magnet is disposed on a non-central axis along a length of the capsule endoscope.
5. The capsule endoscope of claim 1, wherein the rod-shaped magnet is a one-stage structure having the same cross section or a multi-stage structure having different cross sections, and each of the multi-stage structures has a different shape and/or size of cross section.
6. The capsule endoscope of claim 5, wherein the cross-sectional shape of the rod-shaped magnet is circular, elliptical, or polygonal.
7. The capsule endoscope of claim 1, wherein the rod-shaped magnet is fixed within the capsule endoscope housing by a molded structure within the capsule endoscope housing or fixedly connected to the capsule endoscope housing by a fixing member.
8. The capsule endoscope of claim 7, wherein the molded structure is a groove, a cavity, or a snap-fit structure that conforms to the shape of the rod-shaped magnet.
9. The capsule endoscope of any one of claims 1-8, wherein the capsule endoscope housing is further provided with: the image acquisition module is used for acquiring a working image; a communication module for wirelessly communicating with the capsule endoscope external device; the control module is used for controlling the image acquisition module and the communication module to work in a coordinated manner; and the power supply module is used for providing working power for the image acquisition module, the communication module and the control module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621260557X | 2016-11-10 | ||
| CN201621260557 | 2016-11-10 |
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| Publication Number | Publication Date |
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| CN108065905A CN108065905A (en) | 2018-05-25 |
| CN108065905B true CN108065905B (en) | 2024-04-12 |
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| CN201621322993.5U Active CN206548476U (en) | 2016-11-10 | 2016-12-05 | A kind of capsule endoscope |
| CN201611103930.5A Active CN108065905B (en) | 2016-11-10 | 2016-12-05 | Capsule endoscope |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621322993.5U Active CN206548476U (en) | 2016-11-10 | 2016-12-05 | A kind of capsule endoscope |
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| CN206548476U (en) * | 2016-11-10 | 2017-10-13 | 深圳市资福技术有限公司 | A kind of capsule endoscope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082816A (en) * | 2005-09-22 | 2007-04-05 | Hitachi Metals Ltd | Electronic device member, capsule type endoscope and medical system |
| DE102011075498A1 (en) * | 2011-05-09 | 2012-06-28 | Siemens Aktiengesellschaft | Endoscopy capsule used for investigation and diagnosis for treatment or therapy of patient, has housing that accommodates magnetic element whose direction of generated magnetic field is changed during rotation of magnetic element |
| CN102595999A (en) * | 2010-03-05 | 2012-07-18 | 奥林巴斯医疗株式会社 | Capsule-type Endoscope Startup System |
| CN206548476U (en) * | 2016-11-10 | 2017-10-13 | 深圳市资福技术有限公司 | A kind of capsule endoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006019987A1 (en) * | 2006-04-26 | 2007-10-31 | Siemens Ag | Endoscopic capsule for investigation of body openings, has induction coil with elongation along one axis, and magnetic element having magnetic dipole moment aligned perpendicular to longitudinal axis of induction coil |
| CN103340595B (en) * | 2013-07-03 | 2015-08-26 | 安翰光电技术（武汉）有限公司 | A kind of Wireless capsule endoscope and power control method thereof |
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2016
- 2016-12-05 CN CN201621322993.5U patent/CN206548476U/en active Active
- 2016-12-05 CN CN201611103930.5A patent/CN108065905B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007082816A (en) * | 2005-09-22 | 2007-04-05 | Hitachi Metals Ltd | Electronic device member, capsule type endoscope and medical system |
| CN102595999A (en) * | 2010-03-05 | 2012-07-18 | 奥林巴斯医疗株式会社 | Capsule-type Endoscope Startup System |
| DE102011075498A1 (en) * | 2011-05-09 | 2012-06-28 | Siemens Aktiengesellschaft | Endoscopy capsule used for investigation and diagnosis for treatment or therapy of patient, has housing that accommodates magnetic element whose direction of generated magnetic field is changed during rotation of magnetic element |
| CN206548476U (en) * | 2016-11-10 | 2017-10-13 | 深圳市资福技术有限公司 | A kind of capsule endoscope |
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| CN108065905A (en) | 2018-05-25 |
| CN206548476U (en) | 2017-10-13 |
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