CN107438391B - Endoscope-use shape detecting apparatus - Google Patents

Abstract

It is difficult to appropriately be configured to endoscope-use shape detecting apparatus not only to have improved assemblability and maintainability but also prevents signal wire from breaking.Then, endoscope-use shape detecting apparatus of the invention has: multiple sensor main bodies, configures at a predefined interval in column-shaped；Bearing part supports each sensor main body；Cable is configured between each bearing part for supporting each sensor main body, and the insulated electric conductor of each sensor main body is connected to using covering material cladding；And fixation member, the end of fixed bearing component and the cable adjacent to bearing part between each bearing part.(referring to Fig. 9).

Description

Endoscope-use shape detecting apparatus

Technical field

The present invention relates to the endoscope-use shape detecting apparatus of the shape for detecting endoscope.

Background technique

There is known the insertion section having for detecting flexible endoscope scratch curved tube, bending section shape coil biography The endoscope-use shape detecting apparatus of sensor.For example, describing this endoscope-use shape detecting apparatus in patent document 1 Specific composition.

Endoscope-use shape detecting apparatus described in Patent Document 1 is by being adhesively fixed interval in linear connection Multiple coil devices of component are inserted through in outer leather hose and constitute.In addition, curved in order to avoid working as endoscope-use shape detecting apparatus Load focuses on the coupling part of coil and signal wire when bent and load is applied to coil device, by the connecting pin of coil and letter The connecting pin of number line carries out soldering on the basis of being wound up into the insulating element of coil device end.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 10-75929 bulletin

Summary of the invention

(technical problems to be solved by the inivention)

But in composition described in Patent Document 1, need for the multiple coil devices linked by connecting member to be inserted through It is configured in internal diameter bigger elongated outer leather hose subtleer than the outer diameter of coil device.Thus, assembling difficulty is high, in addition, examining If considering dismantling when repairing and assembling again, maintainability is low.In addition, since coil device is not fixed in outer leather hose, because This may for example be bent with outer leather hose, and coil device is in outer leather hose bias internal.If adjacent because of coil device offset The mutual interval variation of coil device, then may be for example when outer leather hose be bent, and load concentrates on configuration between coil device Signal wire, signal wire broken string.

To solve the above-mentioned problems, it is contemplated that outer leather hose is omitted in constituent element.But described in Patent Document 1 In composition, if omitting outer leather hose in constituent element, signal wire is exposed, therefore such as endoscope-use shape detecting apparatus Bending bring load seriously acts on signal wire.Especially, may load concentrate on from coil wire material soldering portion reveal The root portion of signal wire out, signal wire break in the root portion.

The present invention has been proposed in view of the above situation, is both that assemblability and maintainability are improved its purpose is to provide one kind Composition be suitble to prevent the endoscope-use shape detecting apparatus of signal wire broken string simultaneously.

(for solving the means of technical problem)

Endoscope-use shape detecting apparatus involved in one embodiment of the present invention has: multiple sensor main bodies are pressed Scheduled interval is configured in column-shaped；Bearing part supports each sensor main body；Cable is configured at each sensor main body of bearing Between each bearing part, and the insulated electric conductor for being connected to each sensor main body is coated using covering material；And fixation member, The end of fixed bearing component and the cable adjacent to bearing part between each bearing part.

In addition, in one embodiment of the present invention, being also possible to fixation member and including protrusion member, it is installed on bearing Component is integrally formed with bearing part；And cable, by wound on the end of protrusion member and cable, fixed protrusion The end of part and cable.

In addition, in one embodiment of the present invention, being also possible to fixation member in the sensor main body of general cylindrical shape It is located at the end of position the fixed bearing component and cable at substantially coaxial place with adjacent cable.

In addition, in one embodiment of the present invention, being also possible to bearing part is be formed with multiple Wiring patterns three Injection molding circuit block is tieed up, the insulated electric conductor in a cable adjacent with bearing part is connected to the one of corresponding Wiring pattern It holds, the insulated electric conductor in another cable adjacent with bearing part is connected to the other end of corresponding Wiring pattern.

In addition, in one embodiment of the present invention, sensor main body is, for example, coil.

In addition, in one embodiment of the present invention, being also possible to bearing part and including base end part, positioned at endoscope Base end side；And terminal part is formed with conducting portion in base end part positioned at the end side of endoscope, connects via conducting portion from institute Correspond to a pair in the insulated electric conductor in a pair of end sub-line and the cable adjacent with base end part that each end of the coil of bearing is drawn The insulated electric conductor of terminal line.The Wiring pattern connects in the insulated electric conductor in the cable adjacent with base end part except corresponding to a pair of end The insulated electric conductor in remaining insulated electric conductor and the cable adjacent with terminal part other than sub-line, wherein the electricity adjacent with terminal part Insulated electric conductor in cable is and is located at the sensor master for being close to the bearing part at the end side of endoscope than bearing part and supporting The insulated electric conductor that each terminal line is connected possessed by body.

(invention effect)

According to an embodiment of the present invention, providing a kind of is both that assemblability and maintainability are able to the composition improved while fitting Close the endoscope-use shape detecting apparatus for preventing signal wire from breaking.

Detailed description of the invention

Fig. 1 is the outside drawing of electronic endoscope system involved in one embodiment of the present invention.

Fig. 2 is the fujinon electronic video endoscope for showing electronic endoscope system involved in one embodiment of the present invention and having The figure of composition.

Fig. 3 is to schematically show the position detection that fujinon electronic video endoscope involved in one embodiment of the present invention has to use The figure of the appearance of detector.

Fig. 4 is that the composition of position detection detector involved in one embodiment of the present invention is unfolded and shows Figure.

Fig. 5 is to show the coil base that position detection detector has involved in one embodiment of the present invention The figure of composition.

Fig. 6 is to show the coil base that position detection detector has involved in one embodiment of the present invention The figure of composition.

Fig. 7 is to show the coil base that position detection detector has involved in one embodiment of the present invention The figure of composition.

Fig. 8 is to show the state that coil pickoff is supported on to coil base involved in one embodiment of the present invention Figure.

Fig. 9 is the manufacturing method for illustrating position detection detector involved in one embodiment of the present invention Figure.

Figure 10 is for the signal wire that position detection detector has involved in one embodiment of the present invention The figure that is aided in illustrating of connection.

Figure 11 is the figure for showing the variation that curved tube 11 is scratched in insertion section.

Specific embodiment

In the following, illustrating embodiments of the present invention while referring to attached drawing.In addition, hereinafter, as an embodiment party of the invention Formula is illustrated by taking electronic endoscope system as an example.

[composition of electronic endoscope system 1]

Fig. 1 is the outside drawing of electronic endoscope system 1 involved in one embodiment of the present invention.As shown in Figure 1, this reality The electronic endoscope system 1 for applying mode has fujinon electronic video endoscope 10, endoscope-use processor 20, external coil device 30, shape Detection processor 40 and monitor 50.In Fig. 1, attached drawing is shown in order to facilitate concise, a part of device indicated by an arrow it Between connection.

As shown in Figure 1, fujinon electronic video endoscope 10, which has insertion section, scratches curved tube 11, the outer surface that curved tube 11 is scratched in insertion section is had Flexible sheath covering.The cardinal extremity of bending section 12 is linked to the end that curved tube 11 is scratched in insertion section.

Bending section 12 according to from scratched with insertion section curved tube 11 cardinal extremity link manual operation unit 13 remote operation and Bending.Bending mechanism is assembled in the well known mechanism in conventional endoscope, passes through the bending operation handle with manual operation unit 13 The traction of the operation lines of the rotation process linkage of hand, is bent bending section 12.The direction of the terminal surface of bending section 12 is according to by curved Flexure operation caused by the rotation process of bent operating handle and change, so that the shooting area of fujinon electronic video endoscope 10 is mobile.

Universal cordage 14 extends from manual operation unit 13.Connector portion 15 is connected in the cardinal extremity of universal cordage 14.Connection Device portion 15 is connected to the connector portion 21 in the front panel setting of endoscope use reason device 20, so that fujinon electronic video endoscope 10 is connected to Endoscope-use processor 20.

The processing of endoscope-use processor 20 generates image signal from the captured image data that fujinon electronic video endoscope 10 inputs, and Output this to monitor 50.Show the shooting image of fujinon electronic video endoscope 10 on the monitor 50 as a result,.

Fig. 2 is the figure for showing the composition of fujinon electronic video endoscope 10.As shown in Fig. 2, spreading it in the inside of fujinon electronic video endoscope 10 Whole length (from bending section 12 to connector portion 15) is configured with position detection detector 100.In addition, in connector portion 15 Circuit substrate 15a is installed.

Fig. 3 is the figure for schematically showing the appearance of position detection detector 100.As shown in figure 3, position detection detects Device 100 has at a predefined interval in multiple (being in the present embodiment 12) sensor units 110 of column-shaped configuration.

Have in position detection detector 100 in each sensor unit 110 of column-shaped configuration and plays position detection biography The coil pickoff 111 of sensor effect.In addition, position detection detector 100 has between each sensor unit 110 with packet It covers material cladding and is connected to cable 120 made of the signal wire 120a of coil pickoff 111.Signal wire 120a is insulated electric conductor, For example, enameled wire.

Fig. 4 is that the composition (composition mainly relevant to wiring) of position detection detector 100 is unfolded and shows Figure.As shown in figure 4, (insertion section is scratched in curved tube 11 and bending section in the insertion section of fujinon electronic video endoscope 10 for each sensor unit 110 In 12) separate mutually not mechanical interference degree interval configuration.As an example, each sensor unit 110 in bending section 12 with The spacing of 50mm configures, and scratches in curved tube 11 in insertion section and is configured with the spacing of 100mm.

The coil pickoff 111 of each sensor unit 110 is connected on circuit substrate 15a via corresponding signal wire 120a Circuit.Circuit on circuit substrate 15a is connected to SHAPE DETECTION processor 40 via connector cable 16 (referring to Fig. 1).

External coil device 30 generates alternating current magnetic field from built-in antenna.By the alternating current magnetic field generated from built-in antenna, Each coil pickoff 111 for being configured at position detection detector 100 generates electromotive force and induced current in each coil pickoff It is flowed in 111.The induced current flowed in each coil pickoff 111 is via the circuit on signal wire 120a, circuit substrate 15a And connector cable 16 is input to SHAPE DETECTION processor 40.

SHAPE DETECTION detects each coil according to the induced current flowed in each coil pickoff 111 with processor 40 and senses The position of device 111, the position of each coil pickoff 111 detected is connected with line, to speculate the insertion of fujinon electronic video endoscope 10 The axis in portion.SHAPE DETECTION will paste the shape of the model of simulation electronic endoscope 10, output with processor 40 along above-mentioned axis To monitor 50.Show the supposition shape graph for being inserted into the endoceliac fujinon electronic video endoscope 10 of patient on the monitor 50 as a result, Picture.It should be noted that on the monitor 50, the supposition shape image of fujinon electronic video endoscope 10 individually show or with peeped in electronics The shooting graphical arrangement of mirror 10 or stacked display.

[composition and manufacturing method of position detection detector 100]

Then, the composition and manufacturing method of position detection detector 100 are illustrated.

Sensor unit 110 has the coil base 112 of bearing coil pickoff 111.Coil is shown into Fig. 7 in Fig. 5 The composition of pedestal 112.In addition, the state for making coil pickoff 111 be supported on coil base 112 is shown in FIG. 8.In addition, Figure for illustrating the manufacturing method of position detection detector 100 is shown in Fig. 9.

(a) of Fig. 5 is the side view of coil base 112.(e) difference of (b) of Fig. 5, (c) of Fig. 5, (d) of Fig. 5, Fig. 5 It is from the direction arrow B in Fig. 5 (a), the direction arrow C, the direction arrow D, the figure from the direction arrow E when coil base 112. It should be noted that, for the ease of keeping attached drawing clear, being omitted to hereinafter described disc portion 112bD, wiring diagram in Fig. 5 The diagram of case 112bE and pad portion 112bF.

As shown in figure 5, coil base 112 be locally to dig through cylinder in a manner of becoming U-shaped when viewing from the side and At shape.In other words, it is substantially six life shape (lunar calendar the sixth day of lunar months that coil base 112, which is with the section in axis vertical take-off direction, Moon shape, incomplete moon shape, original text Japanese be " six life shapes ") column portion connection have cylindrical shape one end (Fig. 5 (b), Fig. 5 (d) shown in end) and the other end (end shown in (c) of Fig. 5, (e) of Fig. 5) made of shape.Under Face, for convenience of explanation, by (b) of Fig. 5, Fig. 5 (d) shown in the end of coil base 112 be denoted as " terminal part 112a ", will The end of coil base 112 shown in (c) of Fig. 5, (e) of Fig. 5 is denoted as " base end part 112b ".Position detection detector 100 It is assembled in electronics in such a way that the terminal part 112a of coil base 112 is towards end (bending section 12) side of fujinon electronic video endoscope 10 In sight glass 10.

Sectional view when Fig. 6 is the line A-A interception coil base 112 in Fig. 5 (b).As shown in Figure 5 and Figure 6, online The terminal part 112a of cycle basis seat 112 is formed with axis fixation hole 112aA and hardware securing hole 112aB.In addition, in coil base 112 Base end part 112b be formed with axis fixation hole 112bA, hardware securing hole 112bB and a pair of of through-hole 112bC.

Then, mainly using Fig. 9 to the manufacture of detector 100 of position detection involved in one embodiment of the present invention Method is illustrated.It should be noted that, for the ease of keeping attached drawing clear, omitting the figure to Wiring pattern 112bE in Fig. 9 Show.As long as each process of manufacturing method described below, can appropriate front and back adjustment in reconcilable range.

((a) of process 1: Fig. 9)

In this process 1, installed simultaneously in the hardware securing hole 112aB for the terminal part 112a for being formed in coil base 112 Fixed projection component 113.In addition, also being installed in the hardware securing hole 112bB for the base end part 112b for being formed in coil base 112 And fixed projection component 113.Protrusion member 113 is for example fixed in each hardware securing hole by bonding, indentation.It needs to illustrate , protrusion member 113 also may be integrally formed in coil base 112.At this moment, this process 1 is not needed.

((b) of process 2: Fig. 9)

(a) of Fig. 8 is the figure for showing the internal structure of sensor unit 110.(b) of Fig. 8 is from Fig. 8 (a) Arrow H direction observes figure when sensor unit 110.As shown in figure 8, coil pickoff 111 by by coil wire material wound on It is formed on the outer peripheral surface of core material (magnetic core) 111a.In the following, by the winding section minute mark of the coil wire material on core material 111a Make " coil 111b ".

In this process 2, coil pickoff 111 is made to be supported on coil base 112.Specifically, by the one of core material 111a End is inserted into the axis fixation hole 112aA for the terminal part 112a for being formed in coil base 112, and the other end of core material 111a is inserted into To the axis fixation hole 112bA for being formed in base end part 112b, so that coil pickoff 111 be made to be supported on coil base 112.

It, will be from the coil wire material (one of each end extraction of coil 111b before core material 111a is inserted into each axis fixation hole A pair of of the through-hole 112bC for being formed in base end part 112b is inserted through to terminal line 111bA).By each terminal line 111bA soldering in pad portion 112bF, wherein the end section (connecting pin) for being inserted through through-hole 112bC of pad portion 112bF is formed in base end part 112b.

((c) of process 3: Fig. 9)

The side base end part 112b of coil base 112 cable 120 (hereinafter, for convenience of explanation, being denoted by " cardinal extremity Side cable 120 ' ") in, except a pair of signal wire 120a corresponding with sensor unit 110 is (hereinafter, for convenience of explanation, remembered Make " signal wire 120a' ") outside, with the sensor being located at the end side for more leaning on fujinon electronic video endoscope 10 than the sensor unit 110 The corresponding multiple signal wire 120a of unit 110 are also wrapped by protection.For example, being located at in fujinon electronic video endoscope 10 near base end side The base end side cable 120 ' that the sensor unit 110 at place connects be 24 core cables (a pair of of signal wire 120a' and be located at than this The 11 of each connection of sensor unit 110 of residue (11) of the sensor unit 110 more at the end side of fujinon electronic video endoscope 10 To signal wire 120a).

In this process 3, cable 120 is connected to sensor unit 110.Specifically, base end side cable 120 ' is interior A pair of of signal wire 120a' connecting pin soldering in the corresponding disc portion for the base end part 112b for being formed in coil base 112 112bD.Since the terminal line 111bA soldering of coil 111b is in the pad portion 112bF for being connected to disc portion 112bD, coil 111b and signal wire 120a' electrical connection.

(a) of Fig. 7 is the side view of coil base 112.(b) of Fig. 7 be from Fig. 7 (a) the direction arrow F or arrow Figure when the observation coil base 112 of the head direction G.It should be noted that in Fig. 7, for the ease of keeping attached drawing clear, it is omitted pair Using axis fixation hole 112aA as the diagram of each hole shape shown in fig. 5 of representative.

As shown in fig. 7, coil base 112 is to be formed with the three-dimensional injection molding circuit portion of multiple Wiring patterns on the surface Part (MID (mold interconnecting device, Molded Interconnect Device)).Multiple (these are formed in coil base 112 In be 22) Wiring pattern 112bE.As shown in (b) of Fig. 7, side that one end of multiple Wiring pattern 112bE is arranged at equal intervals Formula is formed on the outer peripheral surface of base end part 112b of coil base 112, and connection is formed in a manner of linearly extending In the column portion of base end part 112b and terminal part 112a, the mode that the other end is arranged at equal intervals is formed in the periphery of terminal part 112a On face.

The connecting pin of the interior residual signal line 120a of base end side cable 120 ' (signal wire other than a pair of of signal wire 120a') Soldering is in one end of the corresponding Wiring pattern 112bE for the base end part 112b for being formed in coil base 112.

The side terminal part 112a of coil base 112 cable 120 (hereinafter, for convenience of explanation, being denoted by " end Side cable 120 " ") in, multiple signal wire 120a are wrapped by protection." the connection of interior each signal wire 120a of end side cable 120 Hold soldering in the other end for the corresponding Wiring pattern 112bE for being formed in terminal part 112a.Base end side cable 120 ' is interior as a result, " interior each signal wire 120a is electrically connected via each Wiring pattern 112bE for each signal wire 120a and end side cable 120.

(a) of Figure 10 is the figure aided in illustrating for the connection to signal wire 120a.(b) of Figure 10 is Figure 10 (a) supplementary explanation figure.As shown in (b) of Figure 10, in (a) of Figure 10, with symbol C flag coil 111b, marked with symbol P Wiring pattern 112bE.The rectangular graph for surrounding symbol C and symbol P indicates sensor unit 110.It is input on the arrow of symbol C Digital representation be connected to coil 111b each terminal line 111bA signal wire 120a' radical (must be here " 2 "), it is defeated Enter to each Wiring pattern 112bE in the digital representation on the arrow of symbol P and the base end part 112b for being formed in coil base 112 The radical of the signal wire 120a of connection.Bound symbol P and end side cable 120 " line on digital representation and be formed in coil The radical of the signal wire 120a of each Wiring pattern 112bE connection on the terminal part 112a of pedestal 112.In (a) of Figure 10, it is Facilitate explanation, the successively note word since be located most closely to the sensor unit 110 at base end side in fujinon electronic video endoscope 10 It is female.

It is interior in the base end side cable 120 ' for being connected to sensor unit 110A as shown in (a) of Figure 10,24 (12 pairs) letters Number line 120a is wrapped by protection.Relative to sensor unit 110A, in 24 signal wire 120a, two (a pair) signal wires 120a' is connected to each terminal line 111bA of coil 111b, 22 remaining (11 pairs) signal wire in the 112bD soldering of disc portion 120a soldering is connected to one end of each Wiring pattern 112bE formed on the base end part 112b of coil base 112.Another party Face, in the end side cable 120 being connect with sensor unit 110A " in, 22 (11 couples) signal wire 120a are wrapped by protection.Phase For sensor unit 110A, 22 all signal wire 120a solderings are connected to the shape on the terminal part 112a of coil base 112 At each Wiring pattern 112bE the other end.

For next sensor unit 110B, two of base end side cable 120 ' interior (above-mentioned end side cable 120 ") (a pair) signal wire 120a ' is connected to each terminal line 111bA of coil 111b in the 112bD soldering of disc portion, and remaining 20 (10 It is right) signal wire 120a soldering is connected to the one of each Wiring pattern 112bE formed on the base end part 112b of coil base 112 End.On the other hand, in the end side cable 120 for being connected to sensor unit 110A " in, 20 (10 couples) signal wire 120a are wrapped Cover protection.For sensor unit 110B, 20 all signal wire 120a solderings are connected to the terminal part in coil base 112 The other end of each Wiring pattern 112bE formed on 112a.

In this way, by repeat since the sensor unit 110 of base end side successively by the signal wire 120a in cable 120 by To being connected to sensor unit 110, the remaining signal wire 120a in cable 120 be connected to next sensor unit 110 Operation, as shown on the exploded view of fig. 4, the coil pickoff 111 of each sensor unit 110 connects via corresponding signal wire 120a The circuit being connected on circuit substrate 15a.

In this process 3, the end of sensor unit 110 and cable 120 is further fixed.Specifically, such as Fig. 9 (c) shown in, by winding cable on the protrusion member 113 for each end for being installed on coil base 112 and the end of cable 120 114, the end of fixed sensor unit 110 and cable 120.

It should be noted that when winding the end of protrusion member 113 and cable 120 with cable 114, coil base 112 It is the shape that the coil 111b for making to have general cylindrical shape and cable 120 are located at substantially coaxial place with protrusion member 113.By making Coil 111b and cable 120 are located at substantially coaxial place, realize the thinning of position detection detector 100.

((d) of process 4: Fig. 9)

In this process 4, each end, protrusion member 113, cable 114 and the cable of the coil base 112 including soldering portion 120 end is entirely through binder-reinforced.

((e) of process 5: Fig. 9)

In this process 5, the sensor unit 110 of the binding part including reinforcing in process 4 is whole by heat-shrinkable tube 115 Cladding protection.

By carrying out above-mentioned each process to each sensor unit 110, entire position detection detector 100 is completed.

The position detection detector 100 as involved in one embodiment of the present invention is using the structure for not having outer leather hose At, therefore do not need to be inserted through in multiple sensor units 110 of column-shaped configuration and be configured in elongated outer leather hose.In addition, It does not need to unload or be inserted through sensors configured unit 110, signal wire 120a from outer leather hose when repairing.Thus, it is compared with the past, Improve assemblability and maintainability.

In addition, signal wire 120a is not exposed, but receive with the bending for not interfering position detection detector 100 The cladding of the cable 120 of the appropriate rigidity of movement degree is protected.In addition, being wound with cable 114 and securing 113 He of protrusion member The end of cable 120.Thus, load when position detection is bent with detector 100 etc. acts on the high cable of resistance to bend(ing) 120, it does not act on substantially to be typically considered to be easy the part of concentrated load and (expose from the soldering portion of disc portion 112bD Signal wire 120a ' root portion) be representative signal wire 120a it is whole.Thus, prevent signal wire 120a from breaking.

It is the explanation to exemplary embodiments of the present invention above.Embodiments of the present invention are not limited to state Bright content can carry out various modifications in the range of technical concept of the invention.For example, by showing in appropriately combined specification Content obtained from embodiment that example property is expressly recited etc. or obvious embodiment etc. is also contained in reality of the invention Apply mode.

Figure 11 is the figure for showing the variation that curved tube 11 is scratched in insertion section.In the embodiment described above, in insertion section The position between the bending section 12 in curved tube 11 and manual operation unit 13 is scratched, once stress just passive curved portion also can be set Divide (passive bending section) 11 '.For example, when bending section 12 is inserted into enteral, if bending section 12 encounters intestinal wall and is exerted a force, Then part 11 ' is bent automatically.As a result, to the power of intestinal wall pressing bending section 12 be converted into making bending section 12 forwards (intestines it is deeper Place) advance power.Therefore, when bending section 12 touches intestinal wall, it can reduce the pain caused by patient.

In the passive curved situation of a part for being configured to that insertion section is made to scratch curved tube 11, since the operation of operator may not It is directly reflected as the shape that curved tube 11 is scratched in insertion section, therefore there is the trend for needing high proficiency.By applying present embodiment, Due to can accurately detect the shape for scratching curved tube 11 in insertion section, it is suitable for the composition for having passive curved part 11 '.

That is, the endoscopic system for having passive bending section 11 ' is characterized in that having:

Endoscope-use shape detecting apparatus involved in present embodiment；And

Curved tube is scratched, subject is inserted into,

The curved tube of scratching has such as lower portion: contacting the wall portion of the inside of the subject in the terminal part for scratching curved tube In the state of, when be applied make it is described scratch the power that curved tube further advances towards the inside of the subject when, it is passive to be bent.

In previous endoscope position detection device, in the case where removing outer leather hose, when position detection detector Load concentrates on the root portion of signal wire 120a ' when 100 bending, it is believed that this is because cable 120 is from root bending.In this hair In bright, protrusion member 113 strengthens the rigidity of cable 120, thus at least adjacent to the part of protrusion member 113 in cable 120 It is difficult to be bent compared with other parts.In other words, in the present invention, when position detection is bent with detector 100, cable 120 is curved Bent part is not the root portion of signal wire 120a ', but the end section of protrusion member 113.Therefore, it can prevent from letter The root portion broken string of number line 120a '.In this viewpoint, although it is preferred that the rigidity of protrusion member 113 is higher than the rigid of cable 120 Degree, as long as but not necessarily in this way, cable 120 can be prevented to be bent or be able to suppress bending degree using protrusion member 113 ?.

Description of symbols

1 electronic endoscope system；10 fujinon electronic video endoscopes；Scratch curved tube in 11 insertion sections；12 bending sections；13 manual operation units；14 Universal cordage；15 connector portions；15a circuit substrate；16 connector cables；20 endoscope-use processors；21 connector portions；Outside 30 Portion's coil device；40 SHAPE DETECTION processors；50 monitors；100 position detection detectors；110 sensor units；111 Coil pickoff；111a core material；111b coil；111bA terminal line；112 coil bases；112a terminal part；112aA axis is fixed Hole；112aB hardware securing hole；112b base end part；112bA axis fixation hole；112bB hardware securing hole；112bC through-hole；112bD weldering Pad portion；112bE Wiring pattern；112bF welding disk；113 protrusion members；114 cables；The 115 hot pressing draws；120 cables；120a letter Number line.

Claims (7)

1. a kind of endoscope-use shape detecting apparatus, has:

Multiple sensor main bodies are configured in column-shaped at a predefined interval；

Bearing part supports each sensor main body；

Cable is configured between each bearing part for supporting each sensor main body, and is connected to using covering material cladding The insulated electric conductor of each sensor main body；And

Fixation member fixes the bearing part and the electricity adjacent to the bearing part between each bearing part The end of cable.

2. endoscope-use shape detecting apparatus according to claim 1, wherein

The fixation member includes

Protrusion member is installed on the bearing part or integrally formed with the bearing part；And

Cable, by wound on the end of the protrusion member and the cable, the fixed protrusion member and the cable End.

3. endoscope-use shape detecting apparatus according to claim 1 or 2, wherein

The fixation member is located at substantially coaxial place in the sensor main body of general cylindrical shape and the adjacent cable The end of the position fixed bearing part and the cable.

4. endoscope-use shape detecting apparatus according to claim 1 or 2, wherein

The bearing part is the three-dimensional injection molding circuit block for being formed with multiple Wiring patterns,

Insulated electric conductor in a cable adjacent with the bearing part is connected to one end of corresponding Wiring pattern, with the branch Insulated electric conductor in the adjacent another cable of bearing portion part is connected to the other end of corresponding Wiring pattern.

5. endoscope-use shape detecting apparatus according to claim 1 or 2, wherein

The sensor main body is coil.

6. endoscope-use shape detecting apparatus according to claim 4, wherein

The sensor main body is coil,

The bearing part includes

Base end part, positioned at the base end side of the endoscope；And

Terminal part, positioned at the end side of the endoscope,

It is formed with conducting portion in the base end part,

Insulation from a pair of end sub-line and the cable adjacent with the base end part that each end of the coil supported is drawn Insulated electric conductor in electric wire corresponding to the pair of terminal line is connected via the conducting portion,

The Wiring pattern connect in the insulated electric conductor in the cable adjacent with the base end part remaining insulated electric conductor and with institute State the insulated electric conductor in the adjacent cable of terminal part, wherein the insulated electric conductor in the cable adjacent with the terminal part is and position It is each possessed by the sensor main body for the bearing part bearing being close to than the bearing part at the end side of the endoscope The insulated electric conductor that terminal line is connected.

7. a kind of endoscopic system, which is characterized in that have:

Endoscope-use shape detecting apparatus described in any one of claims 1 to 6；And

Curved tube is scratched, subject is inserted into,

The curved tube of scratching has such as lower portion: contacting the shape of the wall portion of the inside of the subject in the terminal part for scratching curved tube Under state, when be applied make it is described scratch the power that curved tube further advances towards the inside of the subject when, it is passive to be bent.