Patent application number | Description | Published |
20090171190 | MEDICAL DEVICE POSITION DETECTING SYSTEM, MEDICAL DEVICE GUIDING SYSTEM, AND POSITION DETECTING METHOD FOR MEDICAL DEVICE - Position detection of a medical device is prevented from being impossible even when the frequency characteristic of a magnetic induction coil is varied in accordance with the state of an external magnetic field for guiding the medical device. A medical device position detecting system is a medical device position detecting system which is inserted into the body of a subject and guided by an external magnetic field, and it is equipped with a resonance circuit that is mounted in the medical device, contains a magnetic induction coil having a magnetic material inside and generates an alternate magnetic field, an alternate magnetic field detecting device that is disposed at the outside of an operation region of the medical device and detects the alternate magnetic field generated by the magnetic induction coil, a position information calculator for calculating position information of the medical device on the basis of the detected alternate magnetic field, and a frequency setting unit for setting at least one of the frequency of the alternate magnetic field detected by the alternate magnetic field detecting device and the frequency of the alternate magnetic field generated by the magnetic induction coil on the basis of at least one of the intensity and direction of an external magnetic field at the position of the magnetic induction coil. | 07-02-2009 |
20090281387 | CAPSULE-TYPE MEDICAL APPARATUS, GUIDANCE SYSTEM AND GUIDANCE METHOD THEREFOR, AND INTRASUBJECT INSERTION APPARATUS - Using a guidance system with a simple configuration, propulsive motion along a longitudinal direction and changing of the propulsion direction are easily performed with good precision and stability. There is provided a capsule-type medical apparatus | 11-12-2009 |
20090299142 | OPERATING DEVICE, MONITOR DEVICE, AND CAPSULE GUIDING SYSTEM - An operating device operates a capsule endoscope with 6 degrees-of-freedom motion by using a magnetic field generator with respect to the capsule endoscope inserted into the subject. The operating device includes an operating unit including a fixed unit and a movable unit, and a force sensor incorporated in the operating unit. The operating unit has a three-dimensional shape substantially identical to the capsule endoscope and is a holdable size. The force sensor detects force information of the movable unit when the movable unit of the operating unit is operated once or continuously. The force information detected by the force sensor is output as instruction information for instructing 6 degrees-of-freedom motion of the capsule endoscope. | 12-03-2009 |
20090312787 | Lumen Passability Checking Device, Lumen Passability Checking Method, and Method of Manufacturing Lumen Passability Checking Device - A lumen passability checking device includes: an expandable and shrinkable outer casing that contains a predetermined fluid, is expanded by a pressure of the contained fluid, and forms an external diameter substantially equal to that of a capsule medical device to be inserted into a body of a subject; and a shape manipulating unit that flows out the fluid contained in the outer casing to shrink-deform the outer casing. The outer casing is shrink-deformed by flowing out the fluid, while maintaining a state of being integrated with the shape manipulating unit. | 12-17-2009 |
20090318762 | MAGNETICALLY GUIDING SYSTEM AND MAGNETICALLY GUIDING METHOD - A magnetically guiding system includes: a capsule medical device that has a magnet provided therein; an information acquiring unit that acquires physical information about magnetic guiding of the capsule medical device; a magnetic field generating unit that generates a magnetic field for magnetically guiding the capsule medical device; and a control unit that sets a magnetic field condition based on the physical information acquired by the information acquiring unit and controls the magnetic field generating unit to generate a magnetic field corresponding to the magnetic field condition. | 12-24-2009 |
20090326323 | CAPSULE MEDICAL DEVICE AND CAPSULE MEDICAL DEVICE SYSTEM - Smooth guiding through the inside of a body cavity is carried out by a magnetic field applied from the outside of the body. The provided capsule medical device ( | 12-31-2009 |
20100022835 | MEDICAL-DEVICE GUIDANCE SYSTEM - A situation where a medical device is outside a region suitable for guidance control thereof can be easily coped with. Included are a medical device provided with a magnet; a guiding unit ( | 01-28-2010 |
20100049033 | MEDICAL DEVICE POSITION DETECTION SYSTEM, MEDICAL DEVICE GUIDANCE SYSTEM, POSITION DETECTION METHOD OF MEDICAL DEVICE GUIDANCE SYSTEM, AND GUIDANCE METHOD OF MEDICAL DEVICE GUIDANCE SYSTEM - A medical device position detection system and a position detection method of a medical device guidance system, which are capable of detecting a direction of the medical device accurately, are provided. Included are a medical device introduced into a subject's body; a magnetic field response part that is disposed in the medical device, responds to a magnetic field by virtue of possessing a magnetization direction, and guides the medical device; a magnetic field generation part forming the magnetic field within the subject's body; a direction detection magnetic field control part generating a direction detection magnetic field from the magnetic field generation part for detecting the direction of the medical device; a response detection part detecting a response of the magnetic field response part due to the direction detection magnetic field; and a direction calculating part calculating the direction of the medical device according to the direction of the direction detection magnetic field and a detection result of the response detection part. | 02-25-2010 |
20100056866 | MEDICAL GUIDANCE SYSTEM AND CONTROL METHOD OF MEDICAL DEVICE - A medical guidance system and a control method of a medical device are provided, which may increase the drive force of a medical device and improve controllability thereof. The medical guidance system has a medical device that includes a biologic information acquisition unit that acquires biologic information of the inside of a body cavity and a magnet that generates drive force in response to a magnetic field exerted from the outside of a body, a magnetic field generation unit | 03-04-2010 |
20100060472 | POSITION DETECTION SYSTEM FOR DETECTION OBJECT AND POSITION DETECTION METHOD FOR DETECTION OBJECT - A position detection system for a detection object and a position detection method for a detection object that enable calibration without removing a detection object after the detection object is introduced into a detection space are provided. Provided are a magnetic-field generating unit ( | 03-11-2010 |
20100076263 | ENDOSCOPE SYSTEM, IMAGE PICKUP SYSTEM AND IMAGE PROCESSING APPARATUS - An endoscope system includes: an endoscope for picking up an image in a body cavity by an image pickup apparatus provided in a distal end of an insertion portion; a position detecting apparatus for detecting, based on luminal information acquired by the image pickup apparatus, position information used for inserting the distal end of the insertion portion; a recording apparatus for recording, in a time-sequential manner, the position information detected by the position detecting apparatus; a determining apparatus for determining whether or not the detecting operation of the position information performed by the position detecting apparatus satisfies a set condition; and a direction calculating apparatus for, when the determination result shows that the set condition is not satisfied, reading out the position information recorded in the recording apparatus and outputting information on a direction in which the distal end of the insertion portion is to be inserted. | 03-25-2010 |
20100134096 | POSITION DETECTING DEVICE, MEDICAL DEVICE GUIDING SYSTEM, POSITION DETECTING METHOD, AND MEDICAL DEVICE GUIDING METHOD - Provided is a position detecting device including a first magnetic-field generating unit including at least one magnetic-field generating coil and that generates a first magnetic field in a detection space where a detected object provided with a circuit including at least one built-in coil is disposed; a magnetic-field detecting unit having a plurality of detecting coils arrayed to detect an induced magnetic field generated from the built-in coil by the generated first magnetic field; and a second magnetic-field generating unit including at least one magnetic-field generating coil, that generates a second magnetic field, and including a magnetic-field component having a phase substantially opposite to the first magnetic field and entering the detecting coils, wherein the first magnetic-field generating unit and the detecting coils are disposed so that a generating direction of the first magnetic field and a detecting direction of the induced magnetic field intersect each other. | 06-03-2010 |
20100156399 | POSITION DETECTING DEVICE, MEDICAL DEVICE GUIDANCE SYSTEM, POSITION DETECTING METHOD, AND MEDICAL DEVICE GUIDING METHOD - A position detecting device includes a detected object that includes a circuit with an internal coil; a magnetic-field generator that includes a magnetic-field generating coil for generating a magnetic field with respect to a detection space of the detected object; detection coils that detect an induced magnetic field generated from the internal coil caused by the magnetic field; a magnetic-field-generating-coil switching unit that selects a magnetic-field generating coil from the magnetic-field generating coils in the magnetic-field generator; a storage unit that stores predetermined information for selecting a magnetic-field generating coil from the magnetic-field generating coils in the magnetic-field generator; and a control unit that controls the magnetic-field-generating-coil switching unit to select the magnetic-field generating coil to be operated among the magnetic-field generating coils in the first magnetic-field generator, based on at least one of a position and a direction of the detected object and based on the predetermined information. | 06-24-2010 |
20100179782 | POSITION DETECTING DEVICE - A position detecting device includes a position calculator that performs an optimization convergence calculation using an evaluation function that expresses an error between a measurement value and a theoretical value of magnetic field information of a detection target to calculate at least a position of the detection target; a storage unit that stores a final convergence result of the optimization convergence calculation performed by the position calculator; and a controller that determines whether a result of the optimization convergence calculation converges, suspends the optimization convergence calculation performed by the position calculator when the result does not converge, and performs, after a predetermined time has passed, a returning process of returning a state of the optimization convergence calculation to a converged state by causing the position calculator to perform the optimization convergence calculation based on the final convergence result. | 07-15-2010 |
20100305426 | POSITIONING SYSTEM AND METHOD OF POSITION DETECTING - A body-insertable apparatus has a resonance circuit for emitting a resonance magnetic field by being guided by a drive magnetic field received from the outside. An external device has: a drive coil driving unit for outputting a drive signal having a predetermined frequency; a drive coil for receiving the output drive signal and generating the drive magnetic field in a detection space; a sense coil for detecting the resonance magnetic field and outputting a detection signal; a position deriving unit for deriving position information of the resonance circuit by using the detection signal; a current detecting unit for detecting a current amplitude value of the drive signal input to the drive coil; and a drive magnetic field generation control unit for calculating an amplitude value of a drive signal which is output from the drive coil driving unit by using the current amplitude value, detecting the degree of stability indicating whether a sharp change occurs in the drive magnetic field on the basis of the calculated amplitude value, and controlling the position deriving unit on the basis of the detected degree of stability in the drive magnetic field detected. | 12-02-2010 |
20110009697 | GUIDING SYSTEM, POSITION CONTROLLING APPARATUS, AND GUIDING METHOD - A guiding system includes a capsule-type apparatus and a position controlling apparatus. The capsule-type apparatus includes a permanent magnet, which is fixed to a capsule-shaped casing, and is introduced into a subject. The position controlling apparatus includes a relative position controlling mechanism that changes a relative position between a predetermined axis and the subject, and a magnetic field generating mechanism that forms, in a space in which the subject is laid, a magnetic field that includes at least one of a component of a trapping magnetic field that attracts the permanent magnet to the predetermined axis and a component of a gradient magnetic field that attracts the permanent magnet in a direction same as or opposite to a direction in which the relative position is changed. | 01-13-2011 |
20110012594 | POSITION DETECTING SYSTEM AND POSITION DETECTING METHOD - A system includes a body-insertable apparatus disposed while introduced in a subject in a detection space, and an external apparatus disposed on the outside of the subject. The body-insertable apparatus includes a first switch for connecting/interrupting a resonance circuit and an oscillation circuit or a ground line. The external apparatus includes a drive coil driving unit for outputting a drive signal having the resonance frequency; a drive coil for generating the drive magnetic field in the detection space in accordance with the drive signal; and a second switch for connecting/interrupting the drive coil driving unit and the drive coil. The second switch connects the drive coil driving unit and the drive coil when the first switch is off, and disconnects them when the first switch is on. The resonance circuit generates the resonance magnetic field in accordance with the induction signal or the drive magnetic field. | 01-20-2011 |
20110184690 | POSITION DETECTING SYSTEM AND POSITION DETECTING METHOD - A position detecting system that detects the position of a body-insertable apparatus inserted into a subject includes: a driving-magnetic-field generating unit that generates a driving magnetic field in a detection space in which the subject into which the body-insertable apparatus, which generates a resonant magnetic field induced by the driving magnetic, is inserted is surrounded; a magnetic sensor that detects a magnetic field generated in the detection space; a position detecting unit that detects, based on the magnetic field detected by the sensor, a position and a direction of the body-insertable apparatus; a guiding unit that guides at least one of the position and the direction of the body-insertable apparatus to at least one of a position and a direction set as targets; a predicting unit that predicts, using the position and the direction detected by the position detecting unit, a position and a direction at certain time of the body-insertable apparatus; and a control unit that controls the driving-magnetic-field generating unit and the position detecting unit based on the position and the direction at the certain time predicted by the predicting unit. | 07-28-2011 |
20110245731 | MEDICAL APPARATUS SYSTEM, CAPSULE MEDICAL APPARATUS SYSTEM, AND METHOD OF DISPLAYING POSTURE ITEM OF SUBJECT - A medical apparatus system includes a medical apparatus that acquires information on a subject; a posture item display unit that displays multiple posture items of the subject in which the medical apparatus acquires the information on the subject; an input unit that inputs a posture item of the subject in which the information on the subject is acquired among the posture items that are displayed by the posture item display unit; and a display controller that, in response to the input of the input unit, changes a display mode of the posture item of the subject that is displayed by the posture item display unit, such that the display mode indicates that the posture item is input by the input unit. | 10-06-2011 |
20110263951 | CAPSULE MEDICAL APPARATUS SYSTEM - A capsule medical apparatus system includes: a table for placing a subject thereon along a longitudinal direction; an antenna, which is arranged on a body surface of the subject, for receiving in-vivo information transmitted from a capsule medical apparatus inserted in the subject; a cable for transmitting the in-vivo information received by the antenna; a processing device, which is fixed to a longitudinal end portion of the table, for processing the in-vivo information transmitted via the cable; a rotation mechanism for rotating a connecting portion, at which the cable is connected to the processing device, about a rotation axis lying in the longitudinal direction of the table depending on posture change of the subject. | 10-27-2011 |
20120010480 | IN-VIVO INFORMATION ACQUIRING SYSTEM - An in-vivo information acquiring system includes a body-insertable apparatus that includes a magnetic field responding unit, acquires in-vivo information, and transmits the in-vivo information to the outside; a magnetic field generator that generates a magnetic field for the responding unit; a magnetic field control unit that controls a generation of the magnetic field; a receiving unit that receives the in-vivo information transmitted from the apparatus; a processing unit that processes the in-vivo information; a display unit that displays the processed in-vivo information on a screen; an alarm lamp that notifies a generation state of the magnetic field; and a control unit that controls light emission process of the lamp such that an operator who visually identifies the in-vivo information is less disturbed by the light. The control unit performs control such that the lamp emits light upon no magnetic field and stops the generation of light upon the magnetic field. | 01-12-2012 |
20120226092 | INTRA-SUBJECT MEDICAL SYSTEM, METHOD OF OPERATING BODY-INSERTABLE APPARATUS AND OPERATIVE TREATMENT - Provided is an intra-subject medical system which includes a body-insertable device and a physical quantity generator. The body-insertable device is to be introduced into a subject, is covered by a capsule-shaped exterior member, and includes a physical quantity detecting member which has a directivity to detect a predetermined physical quantity; at least one functional member which has a necessary function for examining or treating inside the subject; and a switch control unit which controls an on/off states or operation mode of the at least one functional member when the physical quantity detecting member detects a physical quantity. The physical quantity generator has a physical quantity emitting unit which emits a temporary physical quantity inside the subject; and a physical quantity direction changing unit which changes an emission direction of the physical quantity. | 09-06-2012 |
20130018225 | MAGNETICALLY GUIDING SYSTEM AND MAGNETICALLY GUIDING METHOD - A magnetically guiding system includes: a capsule medical device that has a magnet provided therein; an information acquiring unit that acquires physical information about magnetic guiding of the capsule medical device; a magnetic field generating unit that generates a magnetic field for magnetically guiding the capsule medical device; and a control unit that sets a magnetic field condition based on the physical information acquired by the information acquiring unit and controls the magnetic field generating unit to generate a magnetic field corresponding to the magnetic field condition. | 01-17-2013 |
20130038711 | CAPSULE ENDOSCOPE SYSTEM - A capsule endoscope system includes a capsule endoscope which attaches irradiation time of illuminating light required to pick up an image of an object to an item of image data, a magnetic field generating apparatus which generates a guidance magnetic field, an operation section which allows at least one of position and orientation of the capsule endoscope to be changed by manipulating the guidance magnetic field, a control section which attaches posture of a subject, an operating history of the operation section, and an output history of the guidance magnetic field to the item of the image data, a storage unit which stores the item of the image data, and an image play control section which determines, based on at least one piece of the information attached to each item of the image data, whether or not it is necessary to play and display the item of the image data. | 02-14-2013 |
20130184526 | CAPSULE-TYPE MEDICAL APPARATUS, GUIDANCE SYSTEM AND GUIDANCE METHOD THEREFOR, AND INTRASUBJECT INSERTION APPARATUS - Using a guidance system with a simple configuration, propulsive motion along a longitudinal direction and changing of the propulsion direction are easily performed with good precision and stability. There is provided a capsule-type medical apparatus which is inserted into the body of a subject and is guided by an external magnetic field, the capsule-type medical apparatus comprising: a substantially cylindrical capsule; a propulsion mechanism for converting rotary motion about a longitudinal axis R of the capsule into propulsive motion along the longitudinal axis R; a magnet accommodated inside the capsule and disposed in such a manner that the magnetic-pole direction thereof can be switched between a direction along the longitudinal axis R and a direction intersecting the longitudinal axis R; and a securing portion for securing the magnet to the capsule in each of the switched states of the magnetic-pole direction. | 07-18-2013 |
20130197305 | MAGNETICALLY GUIDING SYSTEM AND MAGNETICALLY GUIDING METHOD - A magnetically guiding system includes: a capsule medical device that has a magnet provided therein; an information acquiring unit that acquires physical information about magnetic guiding of the capsule medical device; a magnetic field generating unit that generates a magnetic field for magnetically guiding the capsule medical device; and a control unit that sets a magnetic field condition based on the physical information acquired by the information acquiring unit and controls the magnetic field generating unit to generate a magnetic field corresponding to the magnetic field condition. | 08-01-2013 |
20140139306 | MAGNETIC FIELD GENERATION APPARATUS AND CAPSULE MEDICAL DEVICE GUIDING SYSTEM - A magnetic field generation apparatus for generating a guiding-magnetic field which is a magnetic field for magnetically guiding a target object includes a plurality of permanent magnets configured to generate a magnetic field, and a switching unit configured to change relative relationship of the plurality of permanent magnets to switch between a first state in which the plurality of permanent magnets generate the guiding-magnetic field in a predetermined region and a second state in which a strength of the guiding-magnetic field in the predetermined region is less than a strength of the guiding-magnetic field in the first state. | 05-22-2014 |
20140155709 | CAPSULE MEDICAL DEVICE AND MEDICAL SYSTEM - A capsule medical device includes: a power supply unit; a capsule detection magnetic field generation unit configured to generate a capsule detection magnetic field, with which at least one of a position and a posture of the capsule medical device is detected, upon receiving electric power; a state detection unit configured to detect a state of the capsule medical device; a control unit configured to control power supply to the capsule detection magnetic field generation unit; and a magnetic field response unit configured to respond to a guiding-magnetic field for guiding at least one of the position and the posture, wherein the state detection unit includes a guiding-magnetic field detector configured to detect at least one of a strength, a direction, and a gradient of the guiding-magnetic field, and the control unit controls the power supply in accordance with a detection result of the guiding-magnetic field detector. | 06-05-2014 |
20150057497 | ACTIVATION DEVICE - An activation device activates a capsule medical device that has a first coil inside and is activated when voltage not less than a first specified value or current not less than a second specified value is generated in the first coil. The activation device includes: a case; a second coil that is provided in the case and is configured to generate a magnetic field when current flows through the second coil; and a guide portion for guiding to a position that is located outside the case and that is a position of the capsule medical device where the capsule medical device can be activated based on the magnetic field generated by the second coil. The capsule medical device is housed at a specified position in a specified posture in a container having a specified shape. The case has a placement surface on which the container is configured to be placed. | 02-26-2015 |
20150065801 | GUIDANCE DEVICE - A guidance device applies a magnetic field to a capsule medical apparatus within which a first permanent magnet is arranged when the capsule medical apparatus is introduced into a subject, to guide the capsule medical apparatus within the subject. The guidance device includes a second permanent magnet that is configured to be disposed outside the subject and has a rectangular parallelepiped shape or a polygonal column shape, the second permanent magnet having a first plane containing a magnetization direction and a first direction orthogonal to the magnetization direction, and being configured to confine the capsule medical apparatus within a region facing the first plane. The second permanent magnet has a length in the first direction longer than a length in the magnetization direction. | 03-05-2015 |