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:
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:
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 detecting system displays an endoscope image and an insertion form image simultaneously on a display means. A first memory stores an endoscope image and a second memory stores an insertion form image. A control device controls a switching action such that the insertion form image is output to the display means during a period wherein the output of the endoscope image to the display means is turned off and stored in the first memory means, and that the output of the insertion form image to the display means is turned off and stored in the second memory during the period wherein the output of the endoscope image to the display is turned on. In addition, a control device is provided that controls the storing action such that a first period for storing endoscope images in the first memory and a second period for storing output signals from a magnetic field detecting device in the second memory do not overlap.
摘要:
An electric bending endoscope according to the present invention includes a bending portion arranged to an inserting portion, a bending driving mechanism which electrically bends the bending portion, an operation input member which instructs an operation to the bending driving mechanism so that the bending driving mechanism bends the bending portion, and a bending angle holding mechanism which holds the bending angle of the bending portion.
摘要:
An endoscope includes: a treatment instrument elevator base including a contact surface which contacts with a treatment instrument inserted into a treatment instrument insertion channel, and rotatably provided to a distal end to elevate the instrument; a contact portion provided to the distal end to contact with the instrument when the elevator base is elevated; a first leading portion provided to the contact surface to lead the instrument to a predetermined position on the contact surface as the elevator base is rotated; a holding portion provided to the contact surface and the contact portion, and including a grasping surface for sandwiching the instrument with a diameter not exceeding a predetermined value; and a second leading portion provided to the contact portion to lead the instrument larger than the grasping surface away from the holding portion.
摘要:
An electrical bending endoscope includes: an elongated insertion section having a bending portion that is bendable within a predetermined range; a control section that is arranged to the proximal end of the insertion section; a driving source that generates the driving force for bending the bending portion; a driving-force transmitting mechanism that transmits the driving force supplied from the driving source to the bending portion; a driving-force interrupting mechanism that is arranged to a transmitting line of the driving force transmitted from the driving source to the bending portion and interrupts the transmission of the driving force; a switching operating member that is arranged to the control section and mechanically connected to the driving-force interrupting mechanism, to interrupt the transmission of the driving force via the driving-force interrupting mechanism upon its operation; and an error-operation preventing device that prevents unintentional operation of the switching operating member.
摘要:
An endoscope includes: a treatment instrument elevator base including a contact surface which contacts with a treatment instrument inserted into a treatment instrument insertion channel, and rotatably provided to a distal end to elevate the instrument; a contact portion provided to the distal end to contact with the instrument when the elevator base is elevated; a first leading portion provided to the contact surface to lead the instrument to a predetermined position on the contact surface as the elevator base is rotated; a holding portion provided to the contact surface and the contact portion, and including a grasping surface for sandwiching the instrument with a diameter not exceeding a predetermined value; and a second leading portion provided to the contact portion to lead the instrument larger than the grasping surface away from the holding portion.
摘要:
Driving force of a bending motor is transmitted to a sprocket via a clutch mechanism portion. The operation of a switching operation lever switches the clutch mechanism portion to a disconnecting/restoring status. A bending control device includes a bending angle calculating portion which calculates information on a bending status based on an output signal of a potentiometer, a motor driving signal generating portion which generates a driving signal for bending a bending portion, a JS-motor driving signal generating portion which calculates a position for an instructing status of a stick portion based on the information on the bending status and generates the driving signal for moving the stick portion to the position, and a calibration instructing portion which receives a position signal from a status detecting switch and which sends an instruction for outputting to a JS motor, the driving signal generated by the JS-motor driving signal generating portion. With the above construction, the calibration operation is easily performed in a freely bending status.
摘要:
A fluid control input device for endoscope includes a moving member that is moved in accordance with the operation for instructing the switching of a channel arranged in the endoscope by an operator, a restoring member that restores the moving member to a predetermined restoring position, an operated amount detecting member that detects the amount of movement or operated force of the moving member by the operation of the operator and outputs information corresponding to the detected amount of movement or operated force, a covering member that is connected to an exterior member of the endoscope so as to watertightly cover the moving member while permitting the movement of the moving member, and an amount-of-force changing mechanism that changes the amount of operated force of the moving member after/before a predetermined position at which the moving member is moved by the operation of the operator to the predetermined position.