JP3971422B2 - Endoscope shape detection device - Google Patents

Description

  The present invention relates to an endoscope shape detecting apparatus that detects and displays an insertion shape of an endoscope using a magnetic field generating element and a magnetic field detecting element.

  2. Description of the Related Art In recent years, an endoscope shape detecting apparatus that detects the shape of an endoscope inserted into a body or the like using a magnetic field generating element and a magnetic field detecting element and performs display by a display means has come to be used.

  For example, Japanese Patent Laid-Open No. 8-107875 discloses an apparatus that detects an endoscope shape using a magnetic field and displays the detected endoscope shape.

  However, the detection range by the magnetic field detection element is finite for reasons such as the output of the magnetic field generation element and the sensitivity of the magnetic field detection element, and practical detection accuracy is obtained when the magnetic field generation element is separated from the magnetic field detection element by a certain distance or more. It becomes impossible.

  For example, in the configuration disclosed in JP-A-8-107875, if the insertion portion of the endoscope whose shape is to be detected moves to a position away from the magnetic field detection element, the actual shape of the insertion portion There is a problem that the displayed shape deviates.

  Moreover, in the endoscope shape detection apparatus as described above, it is desirable that accurate position adjustment of the detection means is performed.

(Object of invention)
The present invention has been made in view of the above-described points, and an object of the present invention is to provide an endoscope shape detection device capable of accurately adjusting the position of detection means.

  An endoscope shape detection apparatus according to the present invention includes a detection unit provided in an endoscope insertion portion that is inserted into a subject, a detection unit that detects the position of the detection unit, and a detection unit that detects the detection unit. An endoscope shape detecting apparatus comprising: a display means for displaying an insertion shape of the endoscope insertion portion based on position information of the detected means; wherein the detection means is mounted on a rack provided in a vertical direction. The holding position can be moved up and down along with, and a lock lever provided integrally with a grip to be held when performing an operation of raising and lowering, a groove having an inclination provided at both ends of the lock lever, and a groove And a pin that can move up and down so that the holding position of the detection means can be raised and lowered by moving the lock lever relative to the base member to which the detection means is attached. To.

  According to the present invention, it is possible to accurately adjust the position of the detection means.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
1 to 25 relate to an embodiment of the present invention, FIG. 1 shows a configuration of an endoscope system including the embodiment, and FIG. 2 shows an arrangement example of coils incorporated in a coil unit. 3 shows the configuration of the endoscope apparatus shape detection apparatus in FIG. 1, FIG. 4 shows the configuration of the detection block and host processor and the configuration of the connection detection mechanism in FIG. 3, and FIG. 5 shows the configuration of the detection block and the like. 6 shows the operation of the 2-port memory and the like in a timing diagram, FIG. 7 shows the configuration of the detection device and the operation panel, FIG. 8 shows the operation of the main operation by the operation panel, FIG. FIG. 10 shows icons of main menu bars and their functions. FIGS. 11 to 13 show explanatory diagrams for registering, calling, and deleting setting contents such as rotation of the scope model. Is an endoscope for the detection device FIG. 15 shows a display function using a view angle / select button, FIG. 16 shows a function such as enlargement using a zoom button, FIG. 17 shows a function such as bisection, and the like. 19 shows the specific shape of the detection device, FIG. 19 shows the vicinity of the duct of the detection device, FIG. 20 shows the configuration near the lifting mechanism, and FIG. 21 shows the attachment of the transmission board and the like housed in the detection device main body. FIG. 22 shows an enlarged mounting portion of the transmission board, FIG. 23 shows a coil unit case to which a sense coil is attached, FIG. 24 shows a configuration of the coil unit case, and FIG. The convex part provided in each surface is shown.

  As shown in FIG. 1, an endoscope system 1 including an embodiment includes an endoscope apparatus 2 that performs an endoscopic examination, and an endoscope shape detection apparatus 3 that is used to assist the endoscopic examination. The endoscope shape detection device 3 is used as an insertion assisting means when performing an endoscopic examination by inserting the insertion portion 7 of the electronic endoscope 6 into the body cavity of the patient 5 lying on the bed 4. Is done.

  The electronic endoscope 6 is formed with an operation portion 8 provided with a bending operation knob at the rear end of the elongated insertion portion 7 having flexibility, and a universal cord 9 is extended from the operation portion 8 so that a video imaging system is provided. (Or video processor) 10. This electronic endoscope 6 is inserted with a light guide, transmits illumination light from the light source section in the video processor 10, emits illumination light transmitted from an illumination window provided at the distal end of the insertion section 7, and removes the patient and the like. Illuminate. An illuminated subject such as a diseased part forms an image on an imaging element disposed at the imaging position by an objective lens attached to an observation window provided adjacent to the illumination window, and this imaging element performs photoelectric conversion.

  The photoelectrically converted signal is subjected to signal processing by a video signal processing unit in the video processor 10 to generate a standard video signal, which is displayed on an image observation monitor 11 connected to the video processor 10.

  The electronic endoscope 6 is provided with a forceps channel 12, for example, 16 magnetic generating elements (or source coils) 14 a, 14 b,..., 14 p (hereinafter, denoted by reference numeral 14 i) from the insertion opening 12 a of the forceps channel 12. The source coil 14 i is installed in the insertion portion 7 by inserting the probe 15 having a representative).

  The source cable 16 extended from the rear end of the probe 15 has a rear end connector 16a detachably connected to a detection device 21 as a device main body of the endoscope shape detection device 3. Then, a high frequency signal (drive signal) is applied from the detection device 21 side to the source coil 14i serving as the magnetism generating means via the source cable 16 as the high frequency signal transmitting means, so that the source coil 14i causes the electromagnetic wave accompanied by the magnetic field around Radiate.

  The detection device 21 disposed near the bed 4 on which the patient 5 lies is provided with a (sense) coil unit 23 that can be moved up and down (moved up and down), and the coil unit 23 has a plurality of senses. The coils are arranged (more specifically, as shown in FIG. 2, for example, sense coils 22 a-1, 22 a-2, 22 a whose center Z-coordinate is the first Z-coordinate and is directed to the X-axis, for example. -3, 22a-4, and sense coils 22b-1, 22b-2, 22b-3, 22b-4 facing the Y axis, which is a second Z coordinate whose center Z coordinate is different from the first Z coordinate, Twelve senses of the sense coils 22c-1, 22c-2, 22c-3, and 22c-4 facing the Z axis, which is a third Z coordinate whose central Z coordinate is different from the first and second Z coordinates. Coil (hereinafter represented by reference numeral 22j) There has been placed).

  The sense coil 22j is connected to the detection device 21 via a cable (not shown) from the coil unit 23. The detection device 21 is provided with an operation panel 24 for a user to operate the device. In addition, a liquid crystal monitor 25 is disposed on the detection device 21 as display means for displaying the detected endoscope shape.

  As shown in FIG. 3, the endoscope shape detection device 3 includes a drive block 26 that drives the source coil 14 i, a detection block 27 that detects a signal received by the sense coil 22 j in the coil unit 23, and a detection block 27. And a host processor 28 that performs signal processing on the signal detected in (1).

  As shown in FIG. 4A, the probe 15 installed in the insertion portion 7 of the electronic endoscope 6 has 16 source coils 14i for generating a magnetic field at predetermined intervals as described above. These source coils 14 i are connected to a source coil drive circuit 31 that generates 16 different high-frequency drive signals constituting the drive block 26.

The source coil drive circuit unit 31 drives each source coil 14i with a sinusoidal drive signal current of a different frequency, and each drive frequency is a drive frequency setting data storage means (not shown) or drive in the source coil drive circuit unit 31. It is set by drive frequency setting data (also referred to as drive frequency data) stored in the frequency setting data storage means. This drive frequency data is obtained from the drive frequency data in the source coil drive circuit unit 31 via a PIO (parallel input / output circuit) 33 by a CPU (central processing unit) 32 that performs an endoscope shape calculation process in the host processor 28. Stored in storage means (not shown).
On the other hand, twelve sense coils 22 j in the coil unit 23 are connected to a sense coil signal amplification circuit section 34 that constitutes a detection block 27.

In the sense coil signal amplifying circuit section 34, as shown in FIG. 5, twelve single-core coils 22k constituting the sense coil 22j are connected to the amplifying circuit 35k, respectively, and 12 processing systems are provided. After a minute signal detected by the heart coil 22k is amplified by the amplifier circuit 35k, the filter circuit 36k has a band through which a plurality of frequencies generated by the source coil group passes, and unnecessary components are removed and output to the output buffer 37k. It is converted into a digital signal that can be read by the host processor 28 by an ADC (analog-digital converter) 38k.
The detection block 27 includes a sense coil signal amplification circuit unit 34 and an ADC 38k. The sense coil signal amplification circuit unit 34 includes an amplification circuit 35k, a filter circuit 36k, and an output buffer 37k.

  Returning to FIG. 4A, the 12 outputs of the sense coil signal amplifying circuit unit 34 are transmitted to the 12 ADCs 38k, and are digital with a predetermined sampling period by a clock supplied from the control signal generating circuit unit 40. Converted to data. This digital data is written into the 2-port memory 42 via the local data bus 41 in accordance with a control signal from the control signal generation circuit unit 27.

  As shown in FIG. 5, the 2-port memory 42 is functionally composed of a local controller 42a, a first RAM 42b, a second RAM 42c, and a bus switch 42d. The ADC 38k starts A / D conversion by the A / D conversion start signal from the controller 42a, and the bus switch 42d alternately reads the first RAMs 42b and 42c while switching the RAMs 42b and 42c by the switching signal from the local controller 42a. Used as a memory, data is always taken in after a power-on by a write signal.

  Returning to FIG. 4A again, the CPU 32 converts the digital data written in the 2-port memory 42 by the control signal from the control signal generation circuit unit 27 into the local data bus 43, the PCI controller 44, and the PCI bus 45 (FIG. 5). And a frequency extraction process (Fast Fourier Transform: FFT) is performed on the digital data using the main memory 47, as will be described later, and the drive frequency of each source coil 14i is set. Separately extracted into the magnetic field detection information of the corresponding frequency component, and the spatial position coordinates of each source coil 14i provided in the insertion portion 7 of the electronic endoscope 6 is calculated from each digital data of the separated magnetic field detection information.

  Further, the insertion state of the insertion unit 7 of the electronic endoscope 6 is estimated from the calculated position coordinate data, display data for forming an endoscope shape image is generated, and output to the video RAM 48. The data written in the video RAM 48 is read by the video signal generation circuit 49, converted into an analog video signal, and output to the liquid crystal monitor 25. When this analog video signal is input, the liquid crystal monitor 25 displays the insertion shape of the insertion portion 7 of the electronic endoscope 6 on the display screen.

  In the CPU 32, magnetic field detection information corresponding to each source coil 14i, that is, electromotive force (amplitude value of a sine wave signal) generated in the single-core coil 22k constituting each sense coil 22j and phase information are calculated. The phase information indicates the polarity ± of the electromotive force.

  In the present embodiment, as shown in FIG. 1, the detection device 21 includes an extracorporeal marker 57 for displaying the position outside the body in order to confirm the position of the insertion portion 7 inserted into the body. Even if the posture of the patient 5 changes, for example, by attaching it to the abdomen of the patient 5 or the like, the reference plate 58 used to always display the insertion shape from a specific direction (of the patient 5) is connected to the detection device 21. Can also be used.

  The extracorporeal marker 57 accommodates one source coil therein, and the connector 59a at the base end of the cable 59 of the extracorporeal marker 57 is detachably connected to the detection device 21.

  By connecting this connector 59a, the source coil of the extracorporeal marker 57 is driven in the same manner as the source coil in the probe 15, and the position of the source coil of the extracorporeal marker 57 detected by the coil unit 23 is also inserted. Is displayed on the monitor 25 in the same manner.

  The reference plate 58 includes, for example, three source coils on the disk surface inside the disk-shaped portion, and a connector 60a at the base end of the cable 60 connected to the three source coils is a detection device. 21 is detachably connected.

  By detecting the positions of these three source coils, the surface on which they are arranged is determined. Then, it is used to draw the insertion shape so as to have an insertion shape observed when the insertion portion 7 is viewed from a direction perpendicular to the surface.

  As shown in FIG. 4A, in the present embodiment, the detection device 21 is connected to the connector receiver 21a to which the connector 16a of the probe 15, the connector 59a of the extracorporeal marker 57, and the connector 60a of the reference plate 58 are connected. 21 b and 21 c are provided, and each of the connector receivers 21 a, 21 b and 21 c is connected to the source coil drive circuit 31.

As shown in FIG. 4B, for example, the connector receiver 21a is provided with a connection detection mechanism 80 for detecting whether or not the connector 16a is connected.
In the connector 16a, in addition to the connection pins p1 to pn connected to the source coils 14a to 14p, a common pin pc and a connection detection pin pk are provided, and the pin pk is connected to the pin pc.

  The connector receiver 21a is provided with pin receivers p1 'to pn', pc 'and pk' connected to the connection pins p1 to pn, pc and pk, respectively, and the pin receiver pc 'is connected to the ground. Yes.

  Further, the pin receiver pk 'is connected to the power supply terminal Vc by a pull-up resistor R and is connected to a connection detection port of the CPU 32. Then, the CPU 32 determines whether the probe 15 is not connected to the detection device 21 or is connected depending on whether the level of the pin receiving pk ′ is the “H” level of the power supply terminal Vc or the “L” level of the ground. Like to do.

  That is, in the state where the probe 15 is connected as shown in FIG. 4B, the pin receiver pk ′ is connected to the pin receiver pc ′ connected to the ground via the conductive pins pk and pc on the connector 16a side, Accordingly, the level of the pin receiver pk ′ is the “L” level of the ground, and it is determined that the probe 15 is connected. On the other hand, in the state where the probe 15 is not connected, the level of the pin receiver pk ′ becomes the “H” level of the power supply terminal Vc, and it is determined that there is no connection.

  The connector receivers 21b and 21c are also provided with a similar connection detection mechanism. Then, when the probe 15 (an endoscope provided with), the extracorporeal marker 57, and the reference plate 58 are connected, the CPU 32 displays a connection state display at, for example, the lower right corner of the monitor 25 shown in FIG. The endoscope connection icon, the extracorporeal marker connection icon, and the reference plate connection icon connected to the unit 25a are displayed. If it is not connected, the icon is not displayed.

  In the present embodiment, the CPU 32 has a function of a determination unit 32a that determines whether or not the position of each course coil is within the effective detection range based on the detection output from the sense coil 22j.

  This determination means 32a detects a magnetic field by each source coil 14i (in this case, indicated by 14i, but also includes the source coil of the extracorporeal marker 57 and the source coil of the reference plate 58 in addition to the source coil 14i in the probe 15). The electromotive force detected by the sense coil 22j is compared with a preset reference value, and there are a predetermined number or more exceeding the reference value, and the position of the source coil 14i is determined with a predetermined accuracy by the detected output. A determination is made as to whether it is within the effective detection range that can be detected as described above, or whether it is outside the effective detection range that cannot be detected with a predetermined accuracy or more because the number exceeding the reference value is less than the predetermined number.

  The determination result is displayed so as to be understood by the operator by changing the display form according to the determination result when displaying the endoscope insertion shape and the three-dimensional position of the extracorporeal marker 57.

  For example, in the case of the extracorporeal marker 57, when the position of the source coil inside it can be detected with a predetermined accuracy or higher, the display color of the marker that displays the extracorporeal marker on the monitor 25 is changed. In the case of the reference plate 58, display is performed by changing the display color depending on whether or not the surface can be determined with a predetermined accuracy or higher by detecting the positions of a plurality of source coils built in the reference plate 58. Change the form.

  Therefore, for example, when displaying the endoscope connection icon, the extracorporeal marker connection icon, and the reference plate connection icon, the CPU 32 performs control to display on the monitor 25 through the function of the display color selection unit 32b according to the determination result. Therefore, the operator can easily know whether or not the state is detected with a predetermined accuracy or higher by the display color of the icon displayed in the connection state display unit 25a in the lower right of FIG. I am doing so.

  Further, in the present embodiment, in addition to changing the display color on the connection state display unit 25a and displaying the display, the insertion shape displayed on the display surface of the monitor 25 and the marker position of the extracorporeal marker 57 are also effective. The display color is changed according to whether or not it is within the detection range.

For example, in the case of the probe 15 (that is, the endoscope 6), the position of each source coil 14i is displayed in an insertion shape by interpolation or the like, and therefore, for example, an insertion shape portion of a portion existing within the effective detection range The inserted shape portion of the portion existing outside the effective detection range is displayed in different display colors.
Therefore, the determination result by the determination means 32a is reflected in the image data stored in the video RAM 48, for example. That is, when storing image data such as an insertion shape in the video RAM 48, the CPU 32 stores the image data in the R, G, and B planes of the video RAM 48 according to the determination result.

For example, when the entire insertion shape displayed on the monitor 25 is within the effective detection range, the image data is stored in the G plane of the video RAM 48 so as to be displayed in a predetermined color, for example, green.
On the other hand, when a part of the insertion shape is outside the effective detection range, the image data of the part is stored in the G and R planes of the video RAM 48 so that the part is displayed in yellow, for example.
In the case of the extracorporeal marker 57, the color of the marker that displays the extracorporeal marker is changed according to whether or not the extracorporeal marker 57 is within the effective detection range.

  As described above, in the present embodiment, from the insertion shape displayed on the monitor 25 and the display color of the extracorporeal marker 57 or the like, they are within the effective detection range and can be detected with a predetermined accuracy or higher. The feature is that it is possible to easily know whether the state is less than the accuracy of.

  In addition, even when the probe 15 or the like is connected, even if the source coil side is driven, a detection signal cannot be detected by the sense coil.

7A and 7B show the detection device 21 and the operation panel 24 provided in the detection device 21. FIG. As shown in FIG. 7B, the operation panel 24 has a menu button 51 for displaying a menu bar (a main menu as shown in FIG. 7C), a reset button 52 for performing a reset operation, and the like. View angle / select button 53 for changing the view angle by rotating the endoscope insertion shape with the up, down, left and right arrows, selecting the function (up and down arrow), and selecting the item (left and right arrow) In the following, for simplification, there are cases where explanations will be given with the use of the ↑ ↓ and → ← buttons, etc.), and zoom buttons 54 for +/- display for enlarging / reducing the endoscope insertion shape, changing the date / time, and the region. (It may be explained by + and-buttons, etc.), 1 screen / 2 screen button 55 for instructing display of one screen and two screens, and a scope for setting the display start position of the endoscope insertion shape position Tan 56 and is provided.
More detailed features are as follows.

(A) Function of menu button 51 Displays / hides the menu bar at a specific position on the monitor screen. (When the menu bar 50 is not displayed, the state of the set function is stored in the storage device). Select items in the date / time, regional settings screen.
(B) Function of Reset Button 52 In a situation where the function of each item is set by the menu bar, the setting value of each menu item is returned to the state before the menu bar is displayed.
On the date / time / region setting screen, the setting value of the function of each item is returned to the state before entering the date / time / region setting screen.

(C) Function of view angle / select button 53 ← ↑ ↓ → button is used to rotate the endoscope insertion shape.
Use the ↑ ↓ buttons to move the focus of the menu bar.
Submenu display and selection with ← → button. And the selection of the function of the item selected by the menu button 51 on the date / time, region setting screen.

(D) Function of Zoom Button 54 Enlargement / reduction of the endoscope insertion shape.
Set the function of each item on the date / time, region setting screen.
(E) Function of 1-screen / 2-screen button 55 Display of two screens with different viewpoint positions / orientations.

(F) Function of scope position button 56 Setting for starting the display from the position of the extracorporeal marker by moving the external marker to a position where display of the patient's anus position or the like is to be started and operating the scope position button 56.

Next, the operation using the operation panel 24 will be described.
First, when selecting the main menu (function),
By operating the menu button 51, the menu bar shown in FIG. When the menu bar is displayed as described above, if the menu button 51 is further operated, the menu bar is hidden. At this time, the changed functional item is reflected.

  When the menu bar is displayed, it is scrolled in the direction of the arrow by the ↑ ↓ button, and the button position indicated by the square frame is in a focused state.

  FIG. 10, which will be described later, shows details of the icons of the menu items and their submenu items and functions by the menu bar of FIG. 7C.

When the reset button 52 is selected and operated, all the functional items that have been changed are canceled. The menu bar is also hidden. Moreover, it is possible to return to the setting at the time of shipment of the apparatus with a preset button.
When selecting a submenu,
When the function selection icon is in a focused state and the → button is selected, its submenu is displayed as shown in FIG.

  Use the ← → button to move the item.

In addition, the submenu icon in the focus state represents an item that is currently valid.
The item selection decision is made by the menu button 51, and the provisional decision is made when the function is selected by the ↑ ↓ button.

Next, the change of the display method of the endoscope insertion shape by the operation panel 24 will be described.
(1) Enlargement / reduction of endoscope insertion shape by zoom button 54 a. When “+” of the zoom button 54 on the operation panel 24 of the detection device 21 is pressed, an operation notification symbol for enlargement is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is enlarged.
b. When “−” of the zoom button 54 on the operation panel 24 of the detection device 21 is pressed, an operation notification symbol for reduction is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is reduced.

(2) Rotation of endoscope insertion shape by view angle / select button 53 a. When “←” of the view angle / select button 53 on the operation panel 24 of the detection apparatus 21 is pressed, an operation notification symbol for left rotation is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is left. Rotate.
b. When “→” of the view angle / select button 53 on the operation panel 24 of the detection device 21 is pressed, an operation notification symbol for right rotation is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is on the right. Rotate.

c. When “↑” of the view angle / select button 53 on the operation panel 24 of the detection device 21 is pressed, an operation notification symbol for upper rotation is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is raised. Rotate.
d. When “↓” of the view angle / select button 53 on the operation panel 24 of the detection device 21 is pressed, an operation notification symbol for downward rotation is displayed at a specific position in the monitor 25 screen, and the endoscope insertion shape is lowered. Rotate.

Changing the endoscope insertion shape display method using the menu bar (except date / time and regional settings)
a. The menu button 51 on the operation panel 24 of the detection device 21 is pressed to display a menu bar on the left side of the monitor 25 screen.

b. Press “↑” or “↓” of the view angle / select button 53 on the operation panel 24 of the detection device 21 to move the focus to a necessary item.
c. By pressing “→” or “←” of the view angle / select button 53 on the operation panel 24 of the detection device 21, the moved focus item is selected, and a submenu of the selected function is displayed.

d. The displayed submenu items are set by pressing “→” or “←” of the view angle / select button 53 of the operation panel 24 of the detection device 21.
e. When changing the settings of other functions, move the focus of the other items by pressing “↑” or “↓” of the view angle / select button 53 on the operation panel 24 of the detection device 21 and select the necessary functions. To do. Function setting is c and d.

f. When the setting of the function is completed, the menu button 51 on the operation panel 24 of the detection device 21 is pressed to hide the menu bar, and the setting using the menu bar is terminated.
Changing the display method of the endoscope insertion shape using the menu bar (date and time, regional settings)
a. The menu button 51 on the operation panel 24 of the detection device 21 is pressed to display a menu bar on the left side of the monitor 25 screen.

b. “↑” or “↓” of the view angle / select button 53 on the operation panel 24 of the detection device 21 is pressed, and the focus is moved to the setting item of the date / time and the region.
c. Press “→” or “←” of the view angle / select button 53 on the operation panel 24 of the detection device 21 to select the date / time and region setting items, and display the date / time / region setting sub-menu.

d. By pressing the menu button 51 of the operation panel 24 of the detection device 21, the necessary submenu items are selected.
e. Press “→” or “←” of the view angle / select button 53 on the operation panel 24 of the detection device 21 to select a function to be set for a submenu item.

  f. The function is set by pressing “+” or “−” of the zoom button 54 on the operation panel 24 of the detection device 21.

g. When setting other submenu items, the menu button 51 on the operation panel 24 of the detecting device 21 is pressed to select the necessary submenu items, and the functions are set using e and f.
h. When the setting of the function is completed, “↑” or “↓” of the view angle / select button 53 on the operation panel 24 of the detection device 21 is pressed to return to the setting state by the menu bar. Next, the menu button 51 on the operation panel 24 of the detection device 21 is pressed to hide the menu bar, and the setting by the menu bar is terminated.

  Next, a representative example will be specifically described with reference to the flow of the main operation in FIG. When the detection device 21 is turned on and in use, when the menu button 51 is selected and operated as shown in step S1, the main menu in step S2 is displayed on the monitor 25.

  In the next step S3, it is determined whether the menu button 51 or the reset button 52 has been selected. If the menu button 51 has been selected, it is further determined whether the menu button 51 has been selected in the next step S4. If this is the case, the setting by the selection operation is reflected (step S5), the function data is stored (step S6), the menu bar is not displayed (step S7), and the process ends. On the other hand, if the menu button 51 is not selected in step S4, the setting is invalidated in step S8, and the process proceeds to step S5.

  If neither the menu button 51 nor the reset button 52 is selected in step S3, it is determined in step S9 whether either the ↑ ↓ button or the ← → button is selected.

  If the ↑ ↓ button is selected, it is determined whether it is a submenu in step S10. If this is the case, the setting information is saved (step S11), and then the process proceeds to step 12; In step S11, the process jumps to step S12.

  In step S12, it is determined which of the ↑ ↓ buttons has been operated. If the ↓ button has been operated, it is determined in step S13 whether the menu is at the lower end of the menu. Move.

  If it is not the lower end of the menu in step S13, the process proceeds to step S15, the focus is moved by the ↓ button, and focus setting (step S16) is performed.

  In step S12, if the ↑ button is operated, it is determined in step S14 whether the menu is at the top end. If this is the case, the process proceeds to step S3. Proceed to S15.

  On the other hand, if the ← → button is selected in step S9, it is determined whether it is a submenu in step S17, and if this is the case, it is determined whether the thickness is adjusted (step S18). If this is the case, the adjustment slider is moved in the direction of the arrow of the select button (step S19), the focus is further moved (step S20), the focus is set (step S21), and the process returns to step S3.

If the thickness is not adjusted in step S18, the item is selected in step S22 and the process proceeds to step S20.
If it is determined in step S17 that the menu is not a submenu, the submenu is displayed in step S23, and the process proceeds to step S21.

Next, a typical operation will be described with reference to the date / region setting flow of FIG.
When the power of the detection device 21 is turned on to enter the use state, and the date / region setting operation in step S31 of FIG. 9A is performed, the date / region setting window is displayed in the subsequent step S32.

  In step S33, it is determined whether the ↑ or ↓ button has been operated. If this is the case, the focus is moved to the next selection item in step S34, and the focus / LED is turned on to complete this process. To do.

  If neither the ↑ button nor the ↓ button is selected in step S33, either the (menu, reset), (←, →) or (+, −) button is selected in step S35. Judging.

  If it is determined that the button is a (menu, reset) button, it is further determined in step S36 whether the button is the menu button 51 or the reset button 52. If the button is the menu button 51, the setting item in step S37 is reflected. In the subsequent step S38, the desired item is moved in the set item. Then, after setting desired items, focus lighting is performed in step S39, and the process returns to step S33. If the reset button 52 is determined in step S36, the setting item is returned to the original state in step S40, and the process returns to step S33.

  Details of the item movement in step S38 are shown in FIG. As shown in FIG. 9B, the focus position can be moved up and down with the ↑ or ↓ button for the date, time, and region items, and more detailed settings can be made for each selected item.

  For example, if you want to change the time, use the menu button 51 to set the time item, select the item to be set by operating the ← and → buttons, and operate + or-to set the time value. And select and set items such as minutes and seconds. Other date items and area items can be selected and set in substantially the same manner.

  If it is determined in step S35 that the button is (←, →), the item is moved in step S41, and the process proceeds to step S39. If it is determined in step S35 that the button is a (+, −) button, the selection item value is changed in step S42, and the process proceeds to step S39.

  FIG. 10 shows the main menu bar icons and their functions. FIGS. 15 and 16 show the operation notification symbols and their functions. FIG. 17 shows other display functions.

  For example, typical menu bar icons are described below. As shown in FIG. 10, in the first column of the menu, a setting menu and an icon below the setting menu are shown. On the right side, setting contents (submenu) that can be selected and set and submenu icons corresponding to the setting contents are shown. Furthermore, in the remarks column on the right side, functions (remarks) by each setting menu are described.

  Specifically, the first setting menu in FIG. 10 is for switching the display mode, and the setting (selection) for displaying the insertion shape from the top or from the bottom can be performed.

  In other words, by designating an icon of this display mode switching menu and selecting one of the two submenu icons on the right side with the ← and → buttons, the insertion shape is raised corresponding to the selected icon. The mode for displaying from the bottom and the mode for displaying from the bottom can be selected.

  Further, icons in the next menu and submenu indicate a date / time setting menu and its icon, and a submenu that can be set from the time setting menu.

  With this date / time setting menu, the display format can be selected and the date and time can be set.

  The third menu is the scope model thickness adjustment menu. By moving the index position to the right using its submenu, the scope model thickness can be increased, and when the index position is moved to the left side, the scope model thickness is adjusted. Can be thinned.

  The fourth menu is a perspective switching menu (and its icon), and as its submenu, a mode with perspective (perspective drawing) and a mode without perspective can be selected and set.

  The fifth menu is a background switching menu, and as its submenu, a menu with a background color of blue-green and a menu with a blue-purple gradation can be selected and set.

  Further, the sixth menu is a display switching menu, and a display mode with information display and a display mode without information display can be selected as its submenu. Examples of information in this case include patient data, date, time, display length, and gauge.

  The seventh menu is used to register and call up the screen settings. Depending on the user's preference, the setting contents set in the display mode switching menu described above, the enlargement ratio of other scope models, and the rotation amount To register or call.

Next, referring to FIG. 11 and FIG. 12, screen setting registration and calling will be described more specifically.
The state set by the menu and the rotation of the scope model and the enlargement / reduction ratio of the scope model set by the operation panel 24 can be registered, recalled, and deleted as desired. Hereinafter, registration, recall, and deletion will be described in order.

(A) Registration Screen setting registration / call menu icon is selected to display the screen setting registration / call menu shown in FIG. In this display state, for example, numbers from 1 to 5 are displayed so that setting items can be registered with each number. In addition, the setting contents at each number are displayed with corresponding icons.

  Next, in the state of FIG. 11A, the cursor is moved to the number to be registered by operating the ← and → buttons. After moving the cursor to the number you want to register, press the ↑ or ↓ button to determine the number you want to register. Then, a call, registration, and deletion screen shown in FIG. 11B is displayed.

  The icons displayed in FIG. 11B are shown in FIG. As shown in FIG. 11C, a call icon for calling the setting, a registration icon for registering the setting, an erasing icon for erasing the setting, and a cancel icon for canceling the operation are displayed. In practice, the selectable icons are displayed in black, the non-selectable icons are displayed in gray, and the selected icon is displayed in yellow.

  In addition, an initial setting mark number is displayed next to the maximum number (for example, 19) in the number range that can be registered, as shown in FIG. It is registered. Further, when this initial setting mark number is selected, the registration icon and the deletion icon cannot be selected.

  Next, use the ← and → buttons to select the registration icon. Then, the registration icon is selected and displayed in yellow as shown in FIG. Then, the user can register by pressing the ↑ or ↓ button.

(B) Calling First, similarly to the case of FIG. 11A, the screen setting registration and calling menu shown in FIG. In this display state, use the ← and → buttons to move the cursor to the number you want to call. After calling and moving the cursor to the number, the number to be called is determined by pressing the ↑ or ↓ button. Then, a call, registration, and deletion screen shown in FIG. 13 (A) is displayed.

  Next, use the ← and → buttons to select the call icon. Then, the call icon is selected and displayed in yellow as shown in FIG. Then, it can be called by pressing the ↑ or ↓ button.

(C) Erasing First, the screen setting registration / calling menu shown in FIG. 11A or 12C is displayed. In this display state, use the ← and → buttons to move the cursor to the number you want to delete. After erasing and moving the cursor to the number, press the ↑ or ↓ button to determine the number to be erased. Then, a call, registration, and deletion screen shown in FIG. 13B is displayed.

  Next, use the ← and → buttons to select the erase icon. Then, as shown in FIG. 13C, the erase icon is selected and displayed in yellow. Then, it can be erased by pressing the ↑ or ↓ button to determine.

Next, the function of connection display will be described with reference to FIG.
In the present embodiment, as described with reference to FIGS. 1 and 4, the endoscope 6, the reference plate 57, and the extracorporeal marker 58 can be detachably connected to the detection device 21. The presence / absence of connection can be easily recognized by the connection state display unit 25a of the monitor 25 according to the presence / absence of connection.

In addition, in the connected state, it is detected whether it is a normal connection state, out of the detection range, abnormality or failure, and the display color is changed so that the user can check with the display color of the connection state. .
When the extracorporeal marker 57, the reference plate 58, and the endoscope 6 are connected to the detection device 21, the extracorporeal marker connection icon, the reference plate connection icon, and the endoscope connection icon are connected as shown in FIG. It is displayed on the display unit 25a.

  FIG. 14B shows the shapes and contents of the extracorporeal marker connection icon, the reference plate connection icon, and the endoscope connection icon displayed on the connection state display unit 25a. The display color of the icon is green in the normal connection state, yellow in the case of out of the detection range, red in the case of abnormality or failure, and the user can check the connection state by the display color. I am doing so.

  In addition, it is not limited to what is displayed by changing the display color by determining whether or not it is within the effective detection range, for example, an icon displayed on the connection state display unit 25a is normally displayed without blinking, It is good also as a display form changed into the display form which blinks and displays, when it becomes out of an effective detection range.

  Further, the display form to be visually displayed on the monitor 25 is not limited to the one that changes the display form, but the notification form that notifies whether the sound is within the effective detection range or outside by sound or sound is changed. Also good. Further, the presence / absence of connection is not limited to the visual notification form, and the acoustic notification form using sound may be changed. For example, a sound may be notified when it falls outside the effective detection range (for example, if it falls within the effective detection range, no sound is generated, and if it falls outside the effective detection range, a sound or a sound is heard. In other words, it may be displayed or notified by the presence or absence of sound or sound, or its change).

FIG. 15 shows up / down, left / right rotation by operating the view angle / select button 53, VIEW reset by pressing the reset button 52, and an operation notification symbol of the communication state with the endoscope apparatus. .
When the detection apparatus 21 and the endoscope apparatus 2 are connected by a communication line (for example, RS232C) and communication between the apparatuses is established, a symbol indicating a state during communication is displayed at a specific position on the display screen of the monitor 25. indicate.
Also, FIG. 16 shows enlargement by zoom (+) button, enlargement setting threshold, reduction by zoom (-) button, reduction setting threshold, viewpoint follow-up operation notification symbol, and the like.

In the viewpoint follow-up display, when a patient plate is connected to the detection device 21, a symbol indicating that the insertion shape is displayed following the connection of the patient plate and the change in the posture of the patient is displayed at a specific position on the display screen. indicate.
FIG. 17 shows other functions such as a two-division display function and a display image in the case of information display.

Next, a more specific structure of the detection device 21 will be described with reference to FIGS. 18A, 18B, and 18C show a side surface, a front surface, and a back surface of the detection device 21, respectively.
As shown in FIG. 18, the detection device 21 of the present embodiment has a detection device main body 62 and a frame body 63 held so as to sandwich the detection device main body 62 on the bottom side and both side surfaces. A caster 64 for allowing the detection device 62 to move is attached to the liquid crystal monitor 25, and a liquid crystal monitor 25 is attached on the ceiling frame 63 a provided at the upper end of the frame 63. An operation panel 24 is provided at the front corner of the ceiling frame 63a.

A disc-shaped coil unit 23 is attached to the frame 63 by a lifting mechanism 65 on the front side of the frame 63 so as to be lifted and lowered.
A hook or hanger 66 for suspending and holding the probe 15 is provided at the upper end of the frame 63.
The shape of the detection device 21 is a vertically long shape in which the size on the side surface side is made smaller than the size on the front side so that the detection device 21 can be installed in a small occupied area in the vicinity of the side surface of the bed 4.

Further, on the back side of the detecting device 21, an elevating lever 67 constituting an elevating mechanism and an exhaust duct 69 are provided on the rear panel 68 on the back surface of the detecting device main body 62.
FIG. 19 shows the vicinity of the duct 69 in an enlarged manner. 19A shows an enlarged view of the duct portion from the back side of the detection device main body 62, FIG. 19B shows a cross section viewed from the side, and FIG. 19C shows FIG. 19A. BB sectional drawing is shown.

  As shown in FIG. 19B and the like, a plate-shaped guide member 70 is provided obliquely along the horizontal direction on the inner surface at the bottom of the duct 69 in order to discharge water that has entered through the duct 69. The water avoidance structure of the rear panel 68 is formed.

  That is, water or the like that has entered the rear panel 68 from the duct 69 flows down inside the duct 69 and is guided to the lower end side of the guide member 70 by the guide member 70 that is disposed obliquely at the bottom. The air is discharged from the opening of the duct 69 facing the lower end.

20A shows the internal structure of the lifting mechanism 65 with the base cover removed from the back side of the detection device 21, and FIG. 20B shows the cross-sectional structure in the vicinity of the lock pin in FIG.
The rear end side of the coil unit 23 shown in FIG. 18 has a sawtooth shape formed along the vertical direction forming the rack 71 with respect to the rack 71 as shown in FIG. By engaging the lock pin 72 with the recess, the holding position of the coil unit 23 can be fixed up and down freely.

  A long base member 73 in the horizontal direction shown in FIG. 20A is provided on the rear end side of the coil unit 23, and a lock lever 75 provided integrally with the grip 74 is disposed inside the base member 73. In the vicinity of both ends of the lock lever 75, a long groove 76 for receiving the lock pin 72 is provided. As shown in FIG. 20 (B), guide grooves 72 a projecting from the lock pin 72 are inserted into the wall surfaces on both sides of the long groove 76 (provided in an oblique direction). The (protrusion) movement is regulated by a guide groove 77 that regulates the position of the guide pin 72a.

  That is, each lock pin 72 is provided with a guide pin 72a protruding in the lateral direction, and the guide pin 72a is engaged with the guide groove 77 to restrict the position of the lock pin 72.

  The lock lever 75 is urged by a coil spring 78 so as to be pushed downward. With this structure, when the user intends to change the height position of the coil unit 23, the user grips the grip 74 and moves the lock lever 75 upward or downward with respect to the base member 73. Accordingly, the guide pin 72a moves along the guide groove 77, and the lock pin 72 also protrudes and protrudes (projects and retracts) at the same time so that the height position for holding the coil unit 23 can be variably adjusted.

FIG. 21 shows a substrate unit 79, a control substrate 81, a transmission substrate 82, a reception substrate 83, and the like inside the detection apparatus main body 62. 21A shows a view from the front side of the substrate unit 79, FIG. 21B shows a view from the side, and FIG. 21C shows from the top side of FIG. The figure is shown.
Substrate cases 84a and 84b are disposed on both sides of the central control substrate 81, and the transmission substrate 82 and the reception substrate 83 are accommodated in the substrate cases 84a and 84b.

  In this case, the transmission board 82 constitutes a patient circuit insulated from the secondary circuit, and as shown in FIG. 21A, the number of transmission boards 82 is three, for example. The circuit board mounting structure is configured such that it can be securely (with a small resistance) conducted to the ground (patient GND) of the patient circuit and mounted on the circuit board case 84a.

  For this reason, as shown in FIGS. 21A and 21B, the transmission board 82 is made of, for example, a metal spacer 85 and an insulating spacer 86 that are hard and have low electric resistance at two locations, and are fixed with screws 87 for fixing. It is fixed (attached) to the substrate case 84a (in FIG. 21A, one in the vicinity of the center in the vertical direction is fixed in cross section using a metal spacer 85 and an insulating spacer 86. Shows the situation).

  The detailed structure of the mounting portion in this case is shown in FIGS. 22 (A) and 22 (B). As shown in FIG. 22 (B), a ring-shaped GND pattern 88 (provided that it is concentric with the hole as shown in FIG. Since this position is near the edge of the transmission board 82, it is not closed as a ring as shown in FIG.

  In this case, as can be seen from the state of FIG. 22B, the central transmission board 82 is provided with GND patterns 88 on both sides thereof, and the transmission board 82 on both upper and lower sides has a GND pattern 88 on the side facing the metal spacer 85. Is provided.

  Then, as shown in FIG. 22B, metal spacers 85 that are brought into contact with the ring pattern 88 to be conductive are arranged between the transmission boards 82, and insulation made of an insulating material such as a resin is provided inside each metal spacer 85. The spacer 86 is disposed, and is fixed to the case substrate 84 a with a fixing screw 87 that penetrates the inside of the spacer 86.

  In this case, the height of the insulating spacer 86 is made slightly lower than the height of the metal spacer 85 so that each metal spacer 85 can be surely brought into contact with the ring-shaped GND pattern 88 to ensure the function of the patient GND. I have to. The inner diameter of the GND pattern 88 is determined in consideration of the power supply voltage of the case substrate 84a belonging to the secondary circuit.

  Next, the sense coil fixing mechanism will be described with reference to FIGS. FIG. 23 shows a cross-sectional structure of the coil unit case with a sense coil attached, FIG. 24 (A) shows the inside of the coil unit case with the cover removed, and FIG. 24 (B) is a partially enlarged view. FIG. 25 shows each surface of the sense coil in which the shape or the like of the mounting (fixed) portion attached to the coil unit case is different. 25A is a front view of the sense coil, FIGS. 25B and 25C are right and left side views, and FIGS. 25D and 25E are top and bottom views. FIG. 25 (F) shows a rear view.

  As shown in FIG. 23, a sense coil 92 is attached to each of a plurality of predetermined mounting positions in the coil case 91 of the coil unit 23 in a state of a predetermined mounting surface, and a pressing member 93 is put on the sensing coil 92 to cover the pressing member 93. Each sense coil 92 can be easily mounted by being screwed to the coil case 91 with screws 94. Here, the reference numeral 92 includes the sense coils 22a and 22b shown in FIG. 4 and the like and members covering them.

  That is, as shown in FIG. 24 (A), at a plurality of predetermined sense coil mounting positions in the coil case 91, recesses for mounting the sense coils 92 in a predetermined mounting surface and in a predetermined direction at the mounting positions. 95a to 95i are provided. These concave portions 95a to 95i are formed in a concave shape capable of fitting and accommodating corresponding surfaces of the sense coil 92 as shown in FIG.

  In addition, positioning recesses 96 (indicated by reference numerals 96a to 96d as specific examples of the recesses 96 having different shapes in FIG. 24B) are provided at a plurality of locations, for example, at the bottom positions of these recesses 95a to 95i. 25, the convex portions 97 provided on the corresponding surfaces of the sense coil 92 can be fitted and stored (in FIG. 25 (C) and FIG. 25 (F), In order to clarify the following description, more specific symbols 97a, 97b and 97c, 97d are shown).

  In FIG. 24A, numbers 1 to 16 are assigned so that 16 sense coils 92 can be attached without error. Further, the part indicated by a circle A in FIG. 24A is enlarged and shown in FIG.

  In FIG. 24A, for example, the recesses 95a and 95d have different positions where the recesses 96 are provided, and accordingly, the sense coils 92 are attached to the recesses 95a and 95d with the mounting surfaces having different orientations.

  For example, the surface shown in FIG. 25 (F) is inserted into the recess 95a in FIG. 24 (B), and the protrusions 97a and 97b in FIG. 25 (F) are inserted into the recesses 96a and 96b in FIG. Further, the surface of FIG. 25C is fitted into the concave portion 95b of FIG. 24B, and the convex portions 97c and 97d of FIG. 25F are fitted into the concave portions 96c and 96d of FIG.

In this way, the sense coil 92 can be easily and accurately attached to each attachment position.
As shown in FIG. 25, the sense coil 92 is also provided with a recess 98.

  In this way, when the plurality of sense coils 92 used for magnetic field detection are attached at predetermined positions of the coil case 91, convex portions having different sizes and shapes on the respective surfaces of the plurality of sense coils 92 respectively. 97, and by fitting the convex portions 97 to the concave portions 95a to 95i provided on the coil case 91 side, the mounting surfaces and orientations of the respective sense coils 92 are defined so that each sense coil can be easily configured. 92 can be attached to a predetermined position accurately and without error including its orientation. The shape can be detected with high accuracy.

  In the above description, it is obvious that a convex portion may be provided on the sense coil 92 side and a concave portion may be provided on the coil case 91 side. Further, although the sense coil 92 is attached to the coil case 91, a substrate or the like that is housed in the coil case and to which the sense coil 92 is attached may be used.

In the above description, the coil on the probe 15, the extracorporeal marker 57, and the reference plate 58 side is a source coil that generates a magnetic field, and the coil on the coil unit 23 side is a sense coil. That is, the probe 15, the extracorporeal marker 57, and the coil on the reference plate 58 side may be a sense coil that detects a magnetic field, and the coil on the coil unit 23 side may be a source coil that generates a magnetic field.
The present invention described above has the configuration described in the following supplementary notes.

[Appendix]
1. An endoscope insertion portion to be inserted into the subject, or a detection means provided in another device;
Detecting means for detecting the position of the detected means;
Display means for displaying the insertion shape of the endoscope insertion portion or the position of another device based on the position information of the detected means detected by the detection means;
In an endoscope shape detecting device comprising:
Determination means for determining whether or not the detected means is within the effective detection range of the detecting means based on the output of the detecting means;
Based on the determination result of the determination means, a display form selection means for selecting a display form in the insertion shape display of the endoscope insertion portion or the position display of other devices by the display means;
An endoscope shape detecting apparatus comprising:

2. The internal display according to appendix 1, wherein the display form selection means selects and displays a display color according to whether or not the endoscope insertion unit or other device is within the effective detection range. Mirror shape detection device.
3. The display mode selection unit displays the display in a blinking / non-flashing state depending on whether the endoscope insertion unit or another device is within the effective detection range. Endoscope shape detection device.

4). Detecting means for detecting the position of the detected means;
Display means for displaying the position of the detected means based on the output of the detecting means;
Determination means for determining whether or not the detected means is within the effective detection range of the detecting means based on the output of the detecting means;
Based on the determination result of the determination means, a display form selection means for selecting a display form in the position display of the detected means by the display means;
A position detection apparatus comprising:

5). The position detection apparatus according to appendix 4, wherein the display form selection means selects and displays a display color depending on whether or not the detected means is within an effective detection range.
6). The position detection apparatus according to appendix 4, wherein the display form selection means displays the display in a blinking / non-flashing state depending on whether or not the detected means is within the effective detection range.

7). A detecting means provided in an insertion portion of an endoscope to be inserted into a subject or an endoscope auxiliary device used for assisting an endoscope;
Detecting means for detecting a position of the detected means;
Display means for displaying the insertion shape of the insertion portion of the endoscope or the position of the endoscope auxiliary device based on the position information of the detected means detected by the detection means;
In an endoscope shape detecting device comprising:
Connection detection means for detecting whether the endoscope or the endoscope auxiliary device is connected to a detection device incorporating the detection means; and
A connection state display means for displaying connection / non-connection of the endoscope or the endoscope auxiliary device on the display means based on the output of the connection detection means;
An endoscope shape detecting apparatus comprising:
8). Further, based on the output of the detection means, a determination means for determining whether the detected means exists within the effective detection range of the detection means;
Based on the determination result of the determination means, a display form selection means for selecting a display form in the insertion shape display of the insertion portion or the position display of the endoscope auxiliary device by the display means;
The endoscope shape detecting device according to appendix 7, characterized by comprising:

9. An endoscope insertion portion to be inserted into the subject, or a detection means provided in another device;
Detecting means for detecting the position of the detected means;
Display means for displaying the insertion shape of the endoscope insertion portion or the position of another device based on the position information of the detected means detected by the detection means;
In an endoscope shape detecting device comprising:
The detecting means includes a plurality of coils for detecting a magnetic field or generating a magnetic field, and a coil mounting substrate on which the plurality of coils are respectively mounted at predetermined positions, and each of the surfaces of the plurality of coils has another Protrusions having different sizes and shapes from the surface are provided, and the protrusions are fitted into the recesses provided on the coil mounting substrate side, so that the mounting surface and direction of each coil are defined. Endoscope shape detection device.

10. In a medical device for fixing a plurality of substrates constituting a patient circuit insulated from a secondary circuit to a substrate case,
Each substrate is laminated in a state of being separated by an insulating spacer, and fixed to a substrate case with a screw penetrating the insulating spacer, and a conductive hard material such as a metal having a low electric resistance outside the insulating spacer. Cover the spacer, make the height of the conductive hard spacer slightly higher than the height of the insulating spacer, and place the conductive pattern connected to the ground of the patient circuit on the part where the end of the conductive hard spacer contacts each board. A medical device characterized by being formed.

11. An endoscope insertion portion to be inserted into the subject, or a detection means provided in another device;
Detecting means for detecting the position of the detected means;
Display means for displaying the insertion shape of the endoscope insertion portion or the position of another device based on the position information of the detected means detected by the detection means;
In an endoscope shape detecting device comprising:
A lock lever provided integrally with a grip to be held when the holding means is movable up and down along a rack provided in the vertical direction, and is held up and down, and provided at both ends thereof. An inclination groove, a pin movable along the groove, and when the lock lever is moved with respect to the base member to which the detection means is attached, the pin protrudes and retracts to hold the detection means. An endoscope shape detecting device characterized in that it can be raised and lowered.
12 A medical device comprising an exhaust duct, wherein a guide member for discharging water that has entered the interior from the duct is disposed obliquely on an inner surface of a lowermost portion of the duct.

13. The display form selection means determines whether or not there is a display or notification by sound, or a display or notification state by a change in sound, depending on whether or not the endoscope insertion unit or other device is within the effective detection range. The endoscope shape detection device according to appendix 1, wherein the endoscope shape detection device is changed.
14 The display form selection means determines whether or not there is a display or notification by sound, or a display or notification state by a change in sound, depending on whether or not the endoscope insertion unit or other device is within the effective detection range. The position detecting device according to appendix 4, wherein the position detecting device is changed.

15. An endoscope insertion portion to be inserted into the subject, or a detection means provided in another device;
Detecting means for detecting the position of the detected means;
Display means for displaying the insertion shape of the endoscope insertion portion or the position of another device based on the position information of the detected means detected by the detection means;
In an endoscope shape detecting device comprising:
Determination means for determining whether or not the detected means is within the effective detection range of the detecting means based on the output of the detecting means;
Based on the determination result of the determination means, the visual notification form in the insertion shape display of the endoscope insertion portion or the position display of other equipment, or the acoustic notification form by sound (or sound) is selected based on the determination result Notification form selection means to perform,
An endoscope shape detecting apparatus comprising:

The block diagram which shows the structure of the endoscope system provided with 1 embodiment of this invention. The figure which shows the example of arrangement | positioning of the coil incorporated in the coil unit with a reference | standard coordinate system. The block diagram which shows the structure of the endoscope apparatus shape detection apparatus in FIG. The figure which shows the structure of the detection block of FIG. 3, a host processor, and the structure of a connection detection mechanism. The block diagram which shows structures, such as a detection block. The timing diagram of operation | movement of 2 port memory etc. FIG. The figure which shows the structure etc. of a detection apparatus and an operation panel. The flowchart figure which shows the operation | movement of the main operation by an operation panel. The flowchart figure which shows the operation | movement of a date, area setting. The figure which shows the icon of main menu bars, and its function. Explanatory drawing in the case of registering setting contents, such as rotation of a scope model. Explanatory drawing when calling the contents of settings, such as rotation of a scope model. Explanatory drawing in the case of deleting the setting contents, such as rotation of a scope model. The figure which shows the connection display function at the time of connecting an endoscope etc. to a detection apparatus. The figure which shows the display function by a view angle / select button. The figure which shows functions, such as expansion by a zoom button. The figure which shows functions, such as 2 division | segmentation. The figure which shows the specific shape of a detection apparatus. The figure which shows the duct vicinity of a detection apparatus. The figure which shows the structure of the raising-lowering mechanism vicinity. The figure which shows the structure of attachment of the transmission board etc. which are accommodated in a detection apparatus main body. The figure which expands and shows the attachment part of a transmission board. Sectional drawing which shows the coil unit case to which the sense coil was attached. The top view which shows the structure of a coil unit case. The figure which shows the convex part provided in each surface in a sense coil.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Endoscope system 2 ... Endoscope apparatus 3 ... Endoscope shape detection apparatus 4 ... Bed 5 ... Patient 6 ... Electronic endoscope 7 ... Insertion part 8 ... Operation part 10 ... Video processor 12 ... Forceps channel 14i ... Source coil 15 ... probe 16 ... cable 21 ... detection device 23 ... coil unit 22j ... sense coil 24 ... operation panel 26 ... drive block 27 ... detection block 28 ... host processor 31 ... source coil drive circuit 32 ... CPU
32a ... Determination means 32b ... Display color selection means 51 ... Menu button 52 ... Reset button 53 ... View angle / select button 54 ... Zoom button 57 ... Extracorporeal marker 58 ... Reference plate 62 ... Detection device body 65 ... Elevating mechanism 80 ... Connection detection mechanism
Attorney Susumu Ito

Claims (1)

A detection means provided in an endoscope insertion portion to be inserted into a subject;
Detecting means for detecting the position of the detected means;
Display means for displaying an insertion shape of the endoscope insertion portion based on position information of the detected means detected by the detecting means;
In an endoscope shape detecting device comprising:
The detection means is capable of raising and lowering the holding position along a rack provided in the up and down direction, and a lock lever provided integrally with a grip to be held when raising and lowering, and both ends of the lock lever. A groove having an inclination provided; and a pin movable along the groove; and by moving the lock lever with respect to a base member to which the detection means is attached, the pin protrudes and appears and the detection means An endoscope shape detecting device characterized in that the holding position of the endoscope can be raised and lowered.