摘要:
Magnetic-field generating elements or magnetic-field detecting elements are fixed into an insertion part having elasticity, which is inserted into a subject, by an insulating material while ensuring that forms of the respective magnetic-field generating elements or the respective magnetic-field detecting elements are not changed. Even when the insertion part is bent, there is no change in either the function of magnetic-field generation or the function of magnetic-field detection. Magnetic-field detecting elements or magnetic-field generating elements which are arranged at known positions around the subject are combined with each other to calculate three-dimensional positions of the magnetic-field generating elements or the magnetic-field detecting elements within the insertion part. Further, a form of the insertion part is estimated, and a three-dimensional image corresponding to a form of the insertion part is produced. Moreover, a three-dimensional image is projected onto a screen surface to display a stereoscopic image corresponding to the form of the insertion part.
摘要:
A source coil line-break/short-circuit detecting circuit and a probe connection detecting circuit are provided to the source coil driving circuit unit of an endoscope shape detecting apparatus. The source coil line-break/short-circuit detecting circuit detects line-breaks and short-circuits of the source coils. The probe connection detecting circuit detects whether a connection exists with a probe. A marker coil line-break/short-circuit detecting circuit detects line-breaks and short-circuits of the marker coils. A marker connection detecting circuit detects whether a connection exists with a marker. Accordingly, using the apparatus without being connected to a probe or markers can be avoided by detecting the connection of the probe and markers by the probe connection detecting circuit and marker connection detecting circuit, respectively, when the system is energized, thereby avoiding detecting noise and consequently displaying a random image on the monitor.
摘要:
An endoscope shape detection system has a CPU included in a control unit. The CPU performs frequency sampling of digital data to calculate coordinates indicating the spatial positions of source coils incorporated in an insertion unit of an endoscope received in a patient and of marker coils placed on a patient. An inserted state of the insertion unit of the endoscope is estimated based on the calculated coordinate data indicating the positions of the source coils. Display data based on the shape of the endoscope is produced from the calculated coordinate data indicating the positions of the source coils, and output to a video RAM. Display data of the marker coils is produced from the calculated coordinate data indicating the positions of the marker coils, and output to the video RAM. Consequently, the positions of the markers are depicted together with the shape of the endoscope. The positional relationship between the insertion unit of the endoscope and a patient's body can therefore be ascertained.
摘要:
An endoscope shape detection system has a CPU included in a control unit. The CPU performs frequency sampling on digital data to calculate coordinates indicating the spatial positions of source coils incorporated in an insertion unit of an endoscope and of marker coils. An inserted state of the insertion unit of the endoscope is estimated based on the calculated coordinate data indicating the positions of the source coils. Display data based on which shape of the endoscope depicted is produced from the calculated coordinate data indicating the positions of the source coils, and output to a video RAM. Display data based on which marker coils are depicted is produced from the calculated coordinate data indicating the positions of the marker coils, and output to the video RAM. Consequently, the positions of the markers are depicted together with the shape of the endoscope. The positional relationship between the insertion unit of the endoscope and a patient's body can therefore be ascertained.
摘要:
A shape-of-endoscope detecting apparatus generally includes a shape detection unit, a marker, a marker locator unit, and a display control unit. The shape detection unit detects the shape of a portion of an insertion unit of an endoscope inserted into a subject, and produces graphic data expressing the shape thereof. The marker is placed near a position on the subject at which the endoscope is inserted. The marker locator unit acquires the location information of the marker. The display control unit graphically indicates on a display device the shape of the portion inserted into a body cavity, which is detected by the shape detection unit, using as a reference point the location information of the marker acquired by the marker locator. A shape-of-endoscope detecting method generally includes the steps of placing a marker, locating the marker, detecting the shape of the position of an endoscope inserted into a subject, and controlling the display of the detected shape.
摘要:
A shape of endoscope detecting apparatus in accordance with the present invention consists mainly of a shape detection unit, a marker, a location information of marker acquisition unit, and a display control unit. The shape detection unit detects the shape of a portion of an insertion unit of an endoscope inserted into a subject, and produces graphic data expressing the shape thereof. The marker is placed near a position on the subject at which the endoscope is inserted. The location information of marker acquisition unit acquires the location information of the marker. The display control unit graphically indicates on a display device the shape of the portion inserted into a body cavity, which is detected by the shape detection unit, using as a reference the location information of the marker acquired by the location information of marker acquisition unit.
摘要:
An endoscope is provided that can reduce examination costs by realizing commonality of an operating unit by making an inserting unit and the operating unit attachable/detachable with respect to each other to enable the exchange of inserting units. The endoscope of this invention includes an operating unit, an inserting unit that can be detachably connected to the operating unit, and transmission and reception coils provided in the operating unit and the inserting unit, respectively, for sending and receiving signals in a non-contact manner between the operating unit and the inserting unit when the inserting unit is connected to the operating unit.
摘要:
An endoscope of the present invention includes an insert section inserted in a subject body, an operation section provided at a base end of the insert section, a control process section provided in the operation section, for controlling an image pickup section for capturing a subject body image and a predetermined function in the operation section, a signal circuit extending from the control process section, and a connection section provided to the operation section, for allowing detachable connection of a tube unit through which at least one duct line is inserted.
摘要:
First and second illumination and image pickup units are provided in the container body having opposite reference view field directions and are respectively freely tilted in an arbitrary direction within predetermined inclination angles from the reference view field direction.
摘要:
An endoscope is provided that can reduce examination costs by realizing commonality of an operating unit by making an inserting unit and the operating unit attachable/detachable with respect to each other to enable the exchange of inserting units. The endoscope of this invention includes an operating unit, an inserting unit that can be detachably connected to the operating unit, and transmission and reception coils provided in the operating unit and the inserting unit, respectively, for sending and receiving signals in a non-contact manner between the operating unit and the inserting unit when the inserting unit is connected to the operating unit.