Abstract: The present invention provides a method for manufacturing a cellulose nanofiber, characterized by comprising the step of fibrillating cellulose in a polyester based resin, preferably in a polyester based resin having an ester group concentration of 6.0 mmol/g or more and a cellulose nanofiber produced by the manufacturing method concerned. In addition, the present invention provides a masterbatch composition containing the cellulose nanofibers and the polyester based resin. Furthermore, the present invention provides a resin composition containing the masterbatch composition and a diluent resin and a processed product thereof.

Abstract: The present invention has an object to make it possible for a patient to take in a plurality of ingesta materials accurately and easily in a specific order. A capsule housing apparatus 6 according to the present invention houses a capsule endoscope 3 and a first fluid 7 in a housing area 12 of a package 10 and a second fluid 8 in another housing area 11 of the package 10. A partition wall 13 that penetrably separates the housing areas 11, 12 is provided between the housing areas 11, 12 of the package 10. The capsule housing apparatus 6 having such a configuration makes the first fluid 7, capsule endoscope 3, and second fluid 8 suppliable to the patient in the specific order based on numbers marked on the package 10 over the housing areas 11, 12.

Abstract: A capsule-type medical device comprises a capsule main unit having functions for being inserted into the body cavity and performing medical acts such as taking images or the like. The capsule main unit comprises therein a magnet which is acted upon by external magnetism, and a spiral portion on the outer perimeter, so that rotating force acting upon the magnet is readily converted into a propelling force for propelling the capsule-type medical device. A flexible insertion portion which is long and small in diameter is provided to the capsule main unit to allow smooth progression through the body cavity, and the center of gravity of the device is placed upon the longitudinal center axis of the capsule main unit, thus facilitating smooth progression through the body cavity.

Abstract: A capsule medical apparatus includes a needle driving unit that punctures an internal region of a subject with an injection needle and pulls out the injection needle from the internal region, a liquid injection unit that injects a liquid into the internal region through the injection needle, and a leak prevention unit that prevents the liquid that is injected into the internal region from leaking from the internal region.

Abstract: To stably and properly monitor an inside of a body by using an easily operable placement technique, a capsule endoscope 101 to be swallowed from an oral cavity 200 to acquire in-vivo information of a subject 201 and to wirelessly output for a transmission of the in-vivo information to an outside of a body, a string member 103 that is connected to the capsule endoscope 101 for positioning the capsule endoscope 101 at a gastric cardia 202, and a fixing portion 104 that is a portion of the string member 103, is provided on a position with which a length from the capsule endoscope 101 corresponds to a length from the gastric cardia 202 to the inside of an esophageal region 203 for fixing the string member 103 that has located the capsule endoscope 101 at the gastric cardia 202 to the inside of the esophageal region 203 by an endoscopic fixture are included.

Abstract: 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.

Abstract: A capsule medical apparatus includes a capsule exterior member and a sensor that can detect the change of an atmospheric physical quantity caused outside the exterior member in the non-contact state, and performs, based on the temporary change in atmospheric physical quantity detected by the sensor, at least one of first control for switching operation from the ON-state of energy supply to the electric circuit from the battery to the OFF-state of the energy supply and of second control for switching operation from the OFF-state of the power supply to the ON-state of the power supply, and holds the state of energy supply switched by the control until another change of atmospheric physical quantity is detected.

Abstract: A capsule endoscope system includes a contact detector that detects contact with an inner wall of a lumen in the subject; a magnet which is equipped in the capsule endoscope; a magnetic field generating device that is provided at a position, which is fixed with respect to the magnet, and generates a guidance magnetic field to apply to the magnet from the outside of the subject; and a magnetic field generation controller that performs control for guidance in a direction in which the capsule endoscope moves, which is the direction of the axis of the lumen, and performs guidance control for separating the capsule endoscope from the inner wall of the lumen based on a result of detection by the contact detector.

Abstract: An encapsulated endoscope system in accordance with the present invention comprises: an encapsulated endoscope that rotates to develop a thrust; a controller that moves the encapsulated endoscope in an intended direction of advancement; an imaging unit incorporated in the encapsulated endoscope; and an image processing unit that receives image data sent from the imaging unit, and produces an image, which results from rotation of the received image data, according to the rotational phase of the encapsulated endoscope.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: There is provided an in-vivo information acquisition apparatus capable of detecting high-accuracy in-vivo information substantially at the same time in a plurality of different examination sites in a body cavity and an in-vivo information acquisition apparatus system capable of introducing a plurality of in-vivo information acquisition apparatuses into a patient at the same time. The in-vivo information acquisition apparatus includes a specimen-collecting section for collecting a specimen at an examination site in a body cavity, a specimen-evaluating section for evaluating the specimen collected by the specimen-collecting section and outputting an evaluation result, a labeling section having identification information unique to the in-vivo information acquisition apparatus, a communication section for receiving a signal transmitted from the outside and for transmitting to the outside the evaluation result output by the specimen-evaluating section, and a power supply section for supplying electrical power.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release devices if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: A medical device control system improves an inducing stability and operability of a medical device having its direction controlled with magnetism, which is used for the inspection or treatment in a subject's body. The control system is formed of a medical device including an insertion member inserted into the subject's body, and a magnetic field response portion disposed within the insertion member for generating torque in response to the magnetic field applied from outside the subject's body, a direction detection unit that detects an insertion direction of the insertion member, a user interface through which the information with respect to the control of the insertion direction is input and output, a magnetic field generation portion that generates a magnetic field that directs the insertion member to a control direction, and a user interface control unit that controls the user interface based on a discordance between the control direction and the insertion direction.

Abstract: A capsule medication administration system includes: a first capsule for internal body marking; a second capsule for medication; a marking device which makes a marking within a living body; a drug retention section which retains a drug; a release device which releases the drug; a detection device which detects the marking; a decision device which decides whether or not a marking which has been detected by the detection device is a specified marking; and a release control device which operates the release device, if it has been decided by the decision device that it is the specified marking; wherein the first capsule comprises the marking device. The second capsule comprises the drug retention section and the release device.

Abstract: A capsule casing of a capsule medical device has a chemical sensor inside, used for sensing operation. The chemical sensor has a recovery device which resets the chemical sensor to an initial state thereof so as to use the chemical sensor for the sensing operation a plurality of times or continuously.

Abstract: A capsule type medical device, including: a capsule shaped casing which can be ingested to within the living body; an electrical stimulation device which comprises a plurality of electrodes which are used for applying electrical stimuli to living body tissue; an electrode selection device which selects an electrode from among the plurality of electrodes, to apply an electrical stimulus; a contact detection device which electrically detects the electrode which is in contact with the living body tissue; and a control section which controls the various devices.

Abstract: An in-vivo examination system includes a body-insertable apparatus that moves in a subject; and an external device that acquires information about an inside of the subject. The external device includes a location acquiring unit that acquires a plurality of first locations of the body-insertable apparatus in the subject; a trajectory generating unit that generates a first movement trajectory of the body-insertable apparatus in the subject, based on the plurality of first locations; a trajectory storage unit that stores a second movement trajectory; and a scale adjusting unit that adjusts the first movement trajectory to the second movement trajectory.

Abstract: An object of the present invention is to actively control at least one of the position and direction of the imaging field in a subject and to observe a desired observed region in the subject certainly in a short period of time. A body-insertable device system according to the present invention includes a capsule endoscope 1 introduced into a subject and a permanent magnet 3. An imaging unit of the capsule endoscope 1 for taking an image inside the subject is fixed in a casing. The capsule endoscope 1 includes a drive unit for changing at least one of the position and posture of the casing in the liquid 2a which is also introduced in the subject 100. The permanent magnet 3 controls the operation of the drive unit for changing at least one of the position and posture of the casing in the liquid 2a.

Abstract: A body-insertable device is introduced into a desired part in a body for injecting a liquid medicine stored in a casing into the desired part. The body-insertable device includes a projecting portion which projects an injection needle injecting the liquid medicine toward the desired part; a detecting unit which detects a position relation between a biological tissue surface in the desired part and the injection needle; and a control unit. The control unit controls an amount of projection of the injection needle according to the position relation detected by the detecting unit, and controls a puncture depth of the injection needle from the biological tissue surface.

Abstract: An image processing system includes an external device including an orientation specifying unit that specifies orientation of the body-insertable apparatus, a rotation correcting unit that aligns orientations of a plurality of pieces of image data, a screen generating unit that generates a screen displaying the image data, an average color bar generating unit that calculates an average color of the image data, generates an image of the calculated average color, and generates an average color bar in which images of the generated average colors are connected, and an organ image generating unit that generates an organ image, obtained by superimposing the images of the average colors generated by the average color bar generating unit. The screen generating unit generates the screen in which the average color bar generated by the average color bar generating unit is incorporated, and incorporates the organ image into the screen.