CN100512744C - Endoscope - Google Patents

Abstract

An endoscope has an elongate insertion section whose forward end section has a built-in imaging element, an operation section to be held provided at the rear end of the insertion section, and cable sections having a light guide cable for transmitting illumination light and a signal cable connected to the imaging element, the cables extending integrally or as separate bodies from the operation section. Connectors at ends of the cable sections are respectively connectable to a light source device and a signal processing device. Between the front end and a position near the rear end of the operation section is provided a connection/removal section to which a first unit that is on the insertion section side and a second unit that is on the cable sections side are removably connected.

Description

Endoscope

Technical field

The present invention relates to be used for carry out endoscopic endoscope to waiting in the body cavity.

Background technology

In recent years, in medical field and industrial field, being extensive use of can be to the endoscope that checks that object inside is checked.

As conventional example, has the rigid endoscope that has been equipped with the rigid insertion section that is built-in with imaging apparatus.In this rigid endoscope, optical cable and visualizer (scope) cable and rigid endoscope main body become one.

Therefore, visual field direction with direct viewing type and stravismus type in operation is altered under the situation of different visual field directions, usually become unclean zone optical cable terminal part optical connector and be connected to the also dismounting again of adapter of signal processing apparatus (blood processor), yet because the doctor of cleaning area can not directly carry out this operation, thereby this operation reduction.

By contrast, following technology being disclosed for example opening in 2003-No. 190081 communiques as the spy of Japan of the 1st conventional example: is separated into to have at leading section and is built-in with dismounting cable portion freely in the rigid endoscope main body of rigid insertion section of imaging apparatus and the operating portion in this rigid endoscope main body.

In the 1st conventional example, adopt following structure: the wireless signal Transmit-Receive Unit is set, the signal wireless of being made a video recording is sent to outside signal processing apparatus in rigid endoscope main body.

And, in the spy of Japan as the 2nd conventional example opens 2002-No. 369789 communiques, adopt following structure: make optical cable and the endoscope main body dismounting that is built-in with imaging apparatus freely, and light-emitting component is installed in endoscope main body, make the signal of making a video recording luminous by light-emitting component by imaging apparatus, by the photoconduction transmission in the optical cable,, be delivered to video signal processing circuit by being configured in the photo detector reception in the light supply apparatus and converting the signal of telecommunication to.

And, the endoscope 302 that also has the 3rd conventional example of formation endoscope apparatus 301 shown in Figure 24.This endoscope apparatus 301 has: endoscope 302; Illumination light is offered the light supply apparatus 303 of this endoscope 302; Carry out the blood processor 304 of signal processing to being built in imaging apparatus in the endoscope 302; And, show the monitor 305 of the image of making a video recording by imaging apparatus by the signal of video signal of input from these blood processor 304 outputs.

This endoscope 302 has: the insertion section 306 of pliability (soft); Be arranged on the operating portion 307 of the rear end of this insertion section 306; And the universal cordage 308 that is extended from this operating portion 307, the adapter 309 of the end of this universal cordage 308 is connected with light supply apparatus 303.

And the cable 311 that is connected with the lateral electric connector 310 that is arranged on this adapter 309 is connected with the blood processor 304 that carries out signal processing.The signal of video signal that is generated by this blood processor 304 is output to monitor 305.

The insertion section 306 of this endoscope 302 by the leading section 313 of the hard that is arranged on its front end, crooked freely bending section 314 and have flexual flexible portion (bending section) 315 and constitute, by making the operation of crooked knob 316 rotations that are arranged in the operating portion 307, can make bending section 314 bendings.

And 306 interpolations are connected with the photoconduction 317 that transmits illumination light in the insertion section, and this photoconduction 317 further passes through universal cordage 308 from operating portion 307, and it is terminal as being installed on the light supply apparatus 303 from the outstanding photoconduction pipe box of the end face of adapter 309.

Then, by aperture 320, incide the end face of photoconduction pipe box by the illumination light of the lamp of lighting from the lamp driving power of the lamp drive circuit 318 in the light supply apparatus 303 319 then by 321 accumulative illumination light of light collecting lens.

The illumination light that incides the end face of this photoconduction pipe box is transmitted by photoconduction 317, and the front end face outgoing of the photoconduction 317 from the illuminating window that is fixed on leading section 313 is thrown light on to the subject of affected part etc.

Illuminated subject is made the optical image imaging of subject at its image space by the object lens 323 on the observation window that is installed in the illuminating window adjacency.Dispose charge coupled cell (abbreviating CCD as) 324 at this image space.

This CCD 324 is after having carried out the electric current amplification by buffering IC 325, lead to the signal cable 326 that insertion section 306 in, waits and be connected by inserting, further to pass through cable 311 and blood processor 304 interior CCD drive circuits 327 from this electric connector 310 and be connected with CDS circuit 328 with electric connector 310.

Then, drive signal from the CCD of this CCD drive circuit 327 and be applied in, thereby the optical image on the shooting face that is imaged on CCD 324 is carried out opto-electronic conversion, and export as ccd output signal to CCD324.

This ccd output signal is imported into CDS circuit 328, be drawn out of component of signal and convert baseband signal to, and be imported into image-processing circuit 329, be converted into signal of video signal and be output to monitor 305, show that on the display surface of monitor 305 shot object image of being made a video recording by CCD 324 is as endoscopic images.

And, be imported into aperture control circuit 322 in the light supply apparatus 303 from the signal of video signal of image-processing circuit 329 output, generate dim signal by this aperture control circuit 322, according to the opening amount of this dim signal control aperture 320, light modulation becomes suitable illumination light quantity.

In above-mentioned the 1st conventional example, owing to wirelessly carry out the signal transmission between imaging apparatus and signal processing apparatus, thereby for example in the picture signal of making a video recording by imaging apparatus by wireless transmission during to signal processing apparatus, noise on every side is blended into and waits in the signal that is received by signal processing apparatus and the image quality deterioration takes place easily.

And also wirelessly transmit owing to drive the signal of imaging apparatus, thereby also have following probability: this signal becomes the essential factor that needs the noise countermeasure at electrical equipment on every side.

And, in the 2nd conventional example, owing to adopt the part utilize the photoconduction in the optical cable to carry out the structure that light transmits, thereby particularly become very complicated in the structure of the connecting portion of photo detector side, have the shortcoming that manufacturing cost increases.

And conventional example shown in Figure 24 has the identical shortcoming of situation with the rigid endoscope main body that above-mentioned optical cable and visualizer cable are become one.

In splanchnoscopy, if providing for simple replacement of the part of the insertion section side of endoscope, the doctor uses, then be easily.

Though the leading section of above-mentioned the 1st conventional example in the insertion section is built-in with in the fujinon electronic video endoscope of imaging apparatus, makes the photoconduction dismounting freely near operating portion, owing to wirelessly carry out the signal transmission, thereby be subjected to influence of noise easily.

And the 2nd conventional example is owing to adopt in the leading section of insertion section is built-in with the fujinon electronic video endoscope of imaging apparatus and use the structure of optical signal transmission based on the signal of imaging apparatus, thereby can not utilize existing signal processing apparatus.

Summary of the invention

The present invention makes in view of above-mentioned point, and its objective is provides a kind of interchangeability that keeps using conventional lighting sources device and signal processing apparatus, even and also can provide for simple replacement of into the endoscope of other endoscope the medium doctor of splanchnoscopy.

The present invention is a kind of endoscope, it is characterized in that, this endoscope has: endoscope main body, and it has the insertion section, and is built-in with image unit; The photoconduction connecting portion, it is arranged on the incident end of inserting the photoconduction that leads to the transmission illumination light in above-mentioned insertion section; The holding wire connecting portion, it is connecting the end of the holding wire that is electrically connected with above-mentioned image unit; Cable unit, its have respectively integratedly with above-mentioned endoscope main body in the above-mentioned photoconduction connecting portion connecting portion that dismounting is connected freely with the holding wire connecting portion, and insert and be connected with the holding wire that transmits the signal of telecommunication; And light source portion, it is set to mutually opposedly with above-mentioned photoconduction connecting portion in above-mentioned connecting portion, is used for providing illumination light to inserting the above-mentioned incident end lead to the above-mentioned photoconduction in above-mentioned insertion section.

Description of drawings

Fig. 1 is the block diagram that the structure of the medical endoscope system with embodiments of the invention 1 is shown.

Fig. 2 is the block diagram that the structure of the medical endoscope system with embodiments of the invention 2 is shown.

Fig. 3 is near the figure of the structure the cable unit that illustrates among the embodiment 3.

Fig. 4 is the figure that near the structure the cable unit of the rigid endoscope in the variation is shown.

Fig. 5 is the block diagram that the endoscopic system with embodiment 4 is shown.

Fig. 6 is the block diagram that the endoscopic system of the 1st variation is shown.

Fig. 7 A is the block diagram that the endoscopic system of the 2nd variation is shown.

Fig. 7 B is the figure that the internal structure of the one adapter in the 2nd variation is shown.

Fig. 8 is the block diagram that the endoscopic system of the 3rd variation is shown.

Fig. 9 is the structure chart that the endoscopic system with embodiments of the invention 5 is shown.

Figure 10 is the figure of structure that the endoscope of the embodiment 5 that is provided with dismounting portion is shown.

Figure 11 is the perspective view that stravismus illustrates the structure of dismounting portion periphery.

Figure 12 A is the perspective view that stravismus illustrates the structure of the dismounting portion in the 1st variation.

Figure 12 B is that stravismus illustrates the perspective view that adopts with the structure of the dismounting portion of the slightly different structure of Figure 12 A.

Figure 13 is the cross-sectional view that the structure of the dismounting portion in the 2nd variation is shown.

Figure 14 is the perspective view that stravismus illustrates the structure of the dismounting portion in the 3rd variation.

Figure 15 is the cross-sectional view of the structure of the coil periphery in the dismounting portion that is illustrated under the installment state.

Figure 16 is the perspective view that stravismus illustrates the structure of the dismounting portion in the 4th variation.

Figure 17 is the key diagram that the structure that makes the receiving and transmitting part of using up is shown.

Figure 18 is the structure chart that the endoscopic system with embodiments of the invention 6 is shown.

Figure 19 is the perspective view that stravismus illustrates the structure of dismounting portion periphery.

Figure 20 is the perspective view that stravismus illustrates the structure of the dismounting portion in the 1st variation.

Figure 21 is the perspective view that stravismus illustrates the structure of the dismounting portion in the 2nd variation.

Figure 22 is the figure of main portion that the structure of the dismounting portion in the 2nd variation is shown.

Figure 23 is the figure that the structure of the endoscope in the 3rd variation is shown.

Figure 24 is the structure chart that the endoscopic system of the endoscope with conventional example is shown.

The specific embodiment

Below, with reference to accompanying drawing the preferred embodiments of the present invention are described.

(embodiment 1)

Fig. 1 illustrates the structure of the medical endoscope system with embodiments of the invention 1.As shown in Figure 1, this endoscopic system 1 is by constituting with the lower part: the rigid endoscope main body 2A of direct viewing type; The rigid endoscope main body 2B of stravismus type; One end and these rigid endoscope main body 2I (I=A or B) dismounting optical cable portion 3 and signal cable portion 4 freely; Be connected, provide the light supply apparatus 5 of illumination light freely with the other end dismounting of optical cable portion 3; Be connected, carry out the blood processor 6 of signal processing freely with the other end dismounting of signal cable portion 4; And the monitor 7 that is connected, shows correspondence image with these blood processor 6 dismounting freely by the input signal of video signal.

Then, by the optical cable portion 3 that constitutes dismounting cable unit 8 freely is connected with rigid endoscope main body 2I with signal cable portion 4,6 dismounting are connected, carry out the endoscopic medical rigid 9I of endoscope freely with blood processor with light supply apparatus 5 in formation.

The rigid 9I of endoscope of present embodiment is made of 2 unit, that is: as the rigid endoscope main body 2I of front side endoscopic portion (Unit the 1st), and dismounting rear side endoscopic portion (Unit the 2nd) freely near the dismounting portion the rear end of the operating portion 12 of this front side endoscopic portion.In addition, the rigid endoscope main body 2A of direct viewing type and the rigid endoscope main body 2B of stravismus type are such as described below, and only the opticator that throws light on make a video recording of 11 leading section is different in the insertion section.

The operating portion (being also referred to as handle part) 12 of controlling by doctor etc. of the rear end that endoscope main body 2I has the hard insertion section 11 that is formed by rustless steel etc. of elongated drum and is arranged on this insertion section 11, the for example rear end face of this operating portion 12 is provided with optical connector 13 and signal connector 14, they with the signal connector seat 4a of the connector holder 3a of an end that is arranged on optical cable portion 3 and an end that is arranged on signal cable portion 4 respectively dismounting be connected freely.That is, in endoscope main body 2I, be formed with the connecting portion that is connected freely with optical cable portion 3 and signal cable portion 4 dismounting.

And the signal connector 4b that is arranged on the optical connector 3b of the other end of optical cable portion 3 and the other end that is arranged on signal cable portion 4 and light supply apparatus 5 and blood processor 6 dismounting respectively are connected freely.

Be connected with the photoconduction 15 that transmits illumination light in above-mentioned insertion section 11 interpolations, the rear end of this photoconduction 15 arrives the optical connector 13 of the incident end that becomes illumination light.Then, as shown in Figure 1, be connected with this optical connector 13, the illumination light from light supply apparatus 5 is offered photoconduction 15 by the photoconduction 16 in this optical cable portion 3 by making optical cable portion 3.In addition, for example optical connector 13 is abbreviated as adapter 13 and abbreviate signal connector 14 as adapter 14 and use.

This light supply apparatus 5 is built-in with by from the power of power circuit 17 and the illuminator of lighting 18, the light of this illuminator 18 is adjusted to appropriate light quantity through the aperture of being controlled by light quantity by aperture control circuit 19 20, be provided for the photoconduction 16 of optical cable portion 3 afterwards by light collecting lens 21 light harvestings, be provided for the photoconduction 15 of endoscope main body 2I then through this photoconduction 16.

Its front end that becomes the exit end of this photoconduction 15 is fixed in the leading section of insertion section 11, the illumination light of front end face that is delivered to this photoconduction 15 is by being installed in the front side that illuminating lens 22 on the illuminating window shines this illuminating lens 22, and the intravital inspection of the abdominal part that this insertion section 11 is thrust by the trocar (Trocar) etc. etc. or the subject of disposing the affected part etc. of object are thrown light on.

11 the leading section in the insertion section, be provided with observation window (camera window) in abutting connection with ground with illuminating window, object lens 23 are installed on this observation window, dispose for example charge coupled cell (abbreviating CCD as) 24 at the image space of these object lens 23, the optical image that is imaged on this shooting face is carried out opto-electronic conversion as solid-state imager.

As shown in Figure 1, in the rigid endoscope main body 2A of direct viewing type, the optical axis O of object lens 23 is in the direction parallel with the axle of insertion section 11, and the place ahead parallel with the axle of insertion section 11 by these object lens 23 is visual field direction.In addition, further throw light on from the front end face of photoconduction 15, so that the visual field direction of these object lens 23 is thrown light on by the illumination light pair front side parallel of illuminating lens 22 outgoing with the axle of insertion section 11.

On the other hand, in the rigid endoscope main body 2B of stravismus type, the front end face of insertion section 11 forms towards the incline direction that has departed from the orthogonal direction of direction of principal axis of insertion section 11, front end face at this incline direction is provided with illuminating window and observation window in abutting connection with ground, illuminating lens 22 and object lens 23 are installed separately.And, be fixed with near the front end of the photoconduction 15 that is bent the front end in the inboard of illuminating lens 22.And, dispose CCD 24 at the image space of object lens 23.The optical axis O ' of these object lens 23 with the stravismus direction of the direction of principal axis precedent of insertion section 11 such as angle α as visual field direction.

In any one rigid endoscope main body 2I, CCD 24 in the leading section is by for example being built near waveform shaping circuit 25 and the buffering circuit 26 the leading section, is connected with the contact of signal connector 14 with holding wire 27a in the operating portion 12 by inserting to lead in insertion section 11.

Then, as shown in Figure 1, be connected with blood processor 6 by the signal cable portion 4 that is connected with the signal connector 14 of rigid endoscope main body 2I, impose on CCD 24 by holding wire 29a in the signal cable portion 4 and the holding wire 27a in the rigid endoscope main body 2I thereby will drive signal from the CCD of the drive circuit 28 of handling device 6 inside.

CCD 24 is driving the signal charge that signal carried out opto-electronic conversion and export as ccd output signal by applying this CCD.This ccd output signal is extracted component of signal out by near the CDS circuit 31 that is configured in CCD 24, carries out electric current by buffer circuit 32 then and amplifies.

Carried out the electric current amplifying signal by this buffer circuit 32 and be imported into blood processor 6 by inserting the holding wire 27b that leads in insertion section 11 and operating portion 12 and the holding wire 29b in the signal cable portion 4.The signal that is input in this blood processor 6 converts digital signal to by A/D change-over circuit 33, carries out signal processing by video signal processing circuit 34 afterwards, generates digital image signal.

This digital image signal is imported into D/A change-over circuit 35, and is converted into the analog image signal, is output to monitor 7 from its outfan, and is output to the aperture control circuit 19 of light supply apparatus 5.This aperture control circuit 19 makes the luminance level of the signal of video signal of being imported generate dim signal (brightness control signal) with specified period by integration or low pass filter, and compare with the Benchmark brightness level, according to adjusting the opening amount of aperture 20 with the difference signal of datum-plane, can adjust the illumination light amount, become the brightness that is suitable for observing so that be presented at the brightness of the image on the monitor 7.

In the endoscopic system 1 of this structure, the rigid 9A of endoscope of direct viewing type is by constituting with rigid endoscope main body 2A dismounting optical cable portion 3 and signal cable portion 4 freely, and the rigid 9B of endoscope of stravismus type is by constituting with rigid endoscope main body 2B dismounting optical cable portion 3 and signal cable portion 4 freely.

In this case, because rigid endoscope main body 2A and 2B use in medical field, thereby as shown in Figure 1, optical cable portion 3 and signal cable portion 4 near the operating portion 12 are positioned at the cleaning area 36 that is configured to clean conditions, but doctor's free operant of in cleaning area 36, checking and disposing.Yet, be not configured to the unclean regional 37 of clean conditions because adapter 3b, the 4b side of the rearward end in optical cable portion 3 and the signal cable portion 4 are positioned at, thereby the doctor cleaning area 36 in is checking that neutralization can not operate in fact in performing the operation.

In the present embodiment, be characterised in that, each rigid 9I of endoscope can be separated into rigid endoscope main body 2I and the dismounting optical cable portion 3 freely and the structure of signal cable portion 4 by adopting in operating portion 12, can in cleaning area 36, provide for simple replacement of rigid endoscope main body 2I.

Therefore, the doctor controls operating portion 12, under the state of the field of view of looking at straight or looking side ways, use, and be desirably under the situation that will change the visual field in the operation, can take off adapter 13,14 parts of the operating portion 12 that is arranged in cleaning area 36 simply, be replaced with and to change the rigid endoscope main body of using in the visual field and use.That is and since be formed with can be in the cleaning area the easily changeable dismounting of 36 contents bindiny mechanism freely, thereby simply dismounting is changed.

And, as mentioned above in the present embodiment, since adopt each rigid 9I of endoscope can be separated into rigid endoscope main body 2I and by with the rigid endoscope main body 2I dismounting optical cable portion 3 freely and the structure of the cable unit 8 that constitutes of signal cable portion 4, thereby carry out sterilization and the sterilization of each rigid 9I of endoscope easily more simply.

Promptly, will be to each the rigid 9I of endoscope sterilize or the situation of washing under, under rigid endoscope main body 2I and cable unit 8 indissociable situations, long cable unit 8 also must be sterilized or wash together, the operation of taking in etc. the trouble that becomes, yet in the present embodiment, since separable, thereby carry out this operation easily.

And, there are following situation in rigid endoscope main body 2I and cable unit 8, that is: fasten different with disinfectant patience in the pass of using material to sterilization, and in this case, be necessary that the patience of considering a low side sterilizes or sterilize, yet in the present embodiment, owing to may be separately formed, thereby can consider the sterilization or the sterilization of patience separately.And under the situation of keeping in repair etc., may be separately formed in the present embodiment is feasible economically.And, can adopt simple structure to realize.

And,, be that spendable conventional lighting sources device and signal processing apparatus (blood processor) can use same as before under the situation of one in the rigid 2I of endoscope and cable unit 8 according to the rigid 9I of endoscope of present embodiment.

Therefore, the rigid 9I of endoscope of present embodiment can adopt simple structure to realize, versatility is also wide, utilizes easily.And, also can be with the low cost manufacturing.

And, in the above description, the rigid 9I of endoscope is made of rigid endoscope main body 2I and cable unit 8 is described, yet rigid endoscope main body 2I also can regard rigid endoscope as.

In this case, also can be in cleaning area 36, the rigid endoscopies that rigid endoscope self is different with the visual field provide for simple replacement of.And, rigid endoscope main body 2I is being regarded as under the situation of rigid endoscope, also can be applied to the adapter 3b of cable unit 8 and the situation of 4b side and light supply apparatus 5 and blood processor 6 one formation.

Therefore, in following examples, also the same with the foregoing description 1, the rigid 9I of endoscope etc. constituted by rigid endoscope main body 2I with rigid endoscope main body 2I dismounting cable unit 8 freely describe, yet endoscope main body 2I part also can be regarded rigid endoscope as.

(embodiment 2)

Below with reference to Fig. 2 embodiments of the invention 2 are described.Fig. 2 illustrates the endoscopic system 1B with embodiment 2.

This endoscopic system 1B can carry out being connected of rigid endoscope main body 2I and optical cable portion 3 and signal cable portion 4 by adaptor for connecting 41 in the endoscopic system 1 of Fig. 1.

That is, an end side in this adaptor for connecting 41 is provided with connector holder 3a dismounting is connected freely with 4a adapter 42a and the 43a with optical cable portion 3 and signal cable portion 4.And the other end side in this adaptor for connecting 41 is provided with the connector holder 42b and the 43b that can be connected freely by adapter 13 and 14 dismounting of singly touching among (onetouch) and the rigid endoscope main body 2I.Other structures are identical with embodiment 1.

This adaptor for connecting 41 is provided with for example roughly outer installation portion 44 that is embedded in the rear end of operating portion 12, by carrying out the location on the Zhou Fangxiang with operating portion 12 rear ends, and press operating part 12, can cross little protuberance and dismounting is installed on the operating portion 12 freely by singly touching.

Therefore, according to present embodiment, the connector holder 3a of optical cable portion 3 and signal cable portion 4 is connected with 43a with the adapter 42a of an end side of adaptor for connecting 41 with 4a, another the distolateral and rigid endoscope main body 2A of this adaptor for connecting 41 or 2B is connected carries out splanchnoscopy etc.

Then, carry out under the endoscopic situation in the change visual field, by untiing being connected of adaptor for connecting 41 and rigid endoscope main body 2I, can provide for simple replacement of and to change the visual field and carry out endoscopic rigid endoscope main body 2J (J is the part except that I) and use.

Like this, according to present embodiment, comparable embodiment 1 changes rigid endoscope main body 2I more simply and partly uses.In addition, have the effect identical with embodiment 1.

(embodiment 3)

Below with reference to Fig. 3 embodiments of the invention 3 are described.Fig. 3 illustrates near the structure of cable unit among the embodiment 3.Present embodiment adopts connector holder 3a that is connected side with endoscope main body 2A or 2B and the incorporate one adapter of 4a (or one adapter) 51 in the optical cable portion 3 make among the embodiment 1 and the signal cable portion 4.In other words, present embodiment makes adaptor for connecting 41 adopt connector holder 3a and the incorporate structure of 4a side part that makes in optical cable portion 3 and the signal cable portion 4 in the embodiment 2 of Fig. 2.

That is, the rigid 9A of endoscope (9B too) of embodiment 3 is by rigid endoscope main body 2A and be provided with and the cable unit 52 of this rigid endoscope main body 2A dismounting one adapter 51 freely constitutes.

In this one adapter 51, be provided with the optical connector seat 3a and the signal connector seat 4a that are connected respectively with the optical connector 13 of operating portion 12 and signal connector 14, and be provided with installation portion 44 at its outer circumferential side, this installation portion 44 is provided with the internal diameter recess chimeric with the rear end external diameter of operating portion 12.

Extend optical cable portion 3 and signal cable portion 4 from this one adapter 51,6 dismounting are connected freely with blood processor with light supply apparatus 5 separately.Other structures are with identical shown in embodiment 1 or the embodiment 2.

According to present embodiment, the doctor can be in cleaning area 36, and the dismounting operation by one adapter 51 makes cable unit 52 and rigid endoscope main body 2A or the simple dismounting of 2B.

Therefore, as shown in Figure 3, the doctor uses the rigid 9A of endoscope that cable unit 52 is connected with rigid endoscope main body 2A, carry out splanchnoscopy or under splanchnoscopy, undergo surgery, and in this operation, in expectation visual field direction is changed to from direct-view under the situation of stravismus, can use by following providing for simple replacement of.

Promptly, take off one adapter 51 by making one adapter 51 and operating portion 12 isolating operations, and the operation of pushing of the installation portion by making this one adapter 51 44 and operating portion 12 position consistency of the rigid endoscope main body 2B of stravismus type, be replaced with the rigid 9B of endoscope that one adapter 51 has been installed and use on the rigid endoscope main body 2B of stravismus type.

Fig. 4 illustrates near the structure of cable unit of the rigid 9C of endoscope in the variation.The rigid 9C of endoscope of this variation is made of with the cable unit 52 that has with this rigid endoscope main body 2C dismounting one adapter 51 freely rigid endoscope main body 2C.

And the endoscopic system with this variation except rigid 9A of endoscope shown in Figure 3 etc., also has the rigid 9C of endoscope shown in Figure 4.

This rigid endoscope main body 2C in the rigid endoscope main body 2A of for example direct viewing type, becomes with same shape optical connector 13 on the rear end face that is arranged on operating portion 12 and signal connector 14 and is arranged on connecting portion 54 on the side of operating portion 12.

Then, can make one adapter 51 dismounting of cable unit shown in Figure 3 52 that (connection) is installed freely is being arranged on the lateral connecting portion 54 of this operating portion 12.

The doctor can select to think that an actual easy-to-use side uses from the rigid endoscope main body 2A that is provided with optical connector 13 and signal connector 14 at rear end face or the side is provided with the rigid endoscope main body 2C of optical connector 13 and signal connector 14.And, also can use rigid endoscope main body 2A or rigid endoscope main body 2C according to selections such as the positions that undergos surgery.

This variation has the effect identical with the situation of Fig. 3.And,,, thereby can further improve operability because kind that can the actual rigid endoscope that uses increases as endoscopic system.

(embodiment 4)

Below with reference to Fig. 5 embodiments of the invention 4 are described.Fig. 5 illustrates the endoscopic system 1D with embodiment 4.

This endoscopic system 1D is in the endoscopic system 1 of Fig. 1, employing make in independent optical cable portion 3 and the signal cable portion 4 with rigid endoscope main body 2I be connected the incorporate one adapter of side (one adapter) 61, and the switch portion 62 of blood processor 6D being indicated control is set in this one adapter 61.Therefore, the rigid 9A of endoscope in the present embodiment is made of rigid endoscope main body 2A and the cable unit 63 that is provided with the one adapter 61 that is connected freely with operating portion 12 dismounting of this rigid endoscope main body 2A.

This one adapter 61 also is provided with switch portion 62 in one adapter 51 for example shown in Figure 3.This switch portion 62 has for example freeze button 64a and release-push 64b.2 shown in Figure 5, however can be more than 1 or 3.

Freeze button 64a and release-push 64b are by the holding wire 29c in the signal cable portion 4, the contact of 29d arriving signal adapter 4b.Then, be connected freely with the signal connector seat dismounting of blood processor 6D.

This blood processor 6D also extends to video signal processing circuit 34 from the signal connector seat with holding wire 65a, 65b in the blood processor 6 of Fig. 1.And the holding wire 65b that is connected with release-push 64b also is connected with release indication output end 66.Then, can send to the image recording structure of not making illustrated picture archiving device etc. that its control end is connected with this release indication output end 66 to release signal.

Other structures are identical with structure shown in Figure 1.

According to present embodiment, have the effect among the embodiment 3, can also discharge simultaneously the operation of indication etc., can further improve operability.

Fig. 6 illustrates the endoscopic system 1E with the 1st variation.This endoscopic system 1E is provided with recess 71 in the way of the photoconduction 16 in one adapter 61 in the endoscopic system 1D of Fig. 5, light filter box 72 can be installed.In this light filter box 72, take in the optical light filter 73 of the restricted wave band that will pass through.

Optical light filter 73 by the infrared permeation light filter that infrared light is seen through, make ultraviolet that ultraviolet light sees through see through light filter etc. to constitute, by install the diverse light filter box 72 of built-in light filter 73, the special light that can carry out under the illumination of infrared light or ultraviolet light etc. is observed (special light shooting).

In addition, in Fig. 6, optical cable portion 3 and signal cable portion 4 adopts 1 cable interpolation and leads to the rear side of one adapter 61 and branch out 2 structure in rear end side.

Other structures are identical with Fig. 5.

According to this variation, have the effect of embodiment 3 grades, except the common observation picture of common visibility region, can also obtain the observation picture of infrared light or ultraviolet light etc. simultaneously.

Fig. 7 A illustrates the main portion of the endoscopic system 1F with the 2nd variation.This endoscopic system 1F is in the endoscopic system 1D of Fig. 5, in one adapter 61, be provided with and detect the connection test section 81 whether this one adapter 61 is connected with rigid endoscope main body 2A, and reduce the control that offers the illumination light of photoconduction 16 from light supply apparatus 5 according to the connection testing result of this connection test section 81.

Shown in Fig. 7 B, near the signal connector seat 4a in one adapter 61, the contact pin 82 of the connection test section 81 that the connection that formation carries out whether being connected with the end contact of holding wire 27a detects is accommodated in the pin hole under the state of the projected direction application of force sliding freely at the spring 84 by coil shape.In this case, spring 84 carries out the application of force, so that push the contact strip 83 that is connected with the rear end of contact pin 82.

Dispose the contact strip 85 that is switched on/disconnects in for example inboard of spring 84 opposed to each other with this contact strip 83.This contact strip 85 is connected with holding wire 29a, also is connected with holding wire 29e with these contact strip 85 opposed contact strips 83.

Holding wire 29a is connected with the on/off testing circuit 86 of blood processor 6E inside through the contact of signal connector 4b with 29e, and this on/off testing circuit 86 sends to the connection detection signal by holding wire 87 the aperture control circuit 19 of light supply apparatus 5.

Aperture control circuit 19 carries out common action under the situation of the connection detection signal of input on, under the situation that does not connect detection signal that input has disconnected, aperture 20 is dwindled to greatest extent, fully reduces to offer the illumination light of photoconduction 16 sides.

By adopting this structure, only under one adapter 61 and the actual situation about being connected of rigid endoscope main body 2I, could be from the front end face outgoing illumination light of the connector holder 3a that becomes photoconduction 16, and under situation about not connecting, outgoing illumination light hardly, but the perhaps illumination light that fully reduces of outgoing.Therefore, outgoing illumination light invalidly under obsolete situation can be prevented, and near the heating of front end face of photoconduction 16 can be prevented.

Fig. 8 illustrates the endoscopic system 1G of the 3rd variation.This endoscopic system 1G adopts in the endoscopic system with the rigid 9A of endoscope that has been equipped with one adapter 51 shown in Figure 3, in this one adapter 51, be provided with the structure of light source portion 91, form the rigid 9G of endoscope by the cable unit 92 that does not have optical cable portion 3.

This light source portion 91 has: illuminator 93; The light collecting lens 94 of assembling the illumination light of this illuminator 93; And the bell glass 95 of covering and these light collecting lens 94 opposed windows, be connected with optical connector 13 by making the connector holder 3a that this bell glass 95 has been installed, can offer photoconduction 15 to the illumination light of being sent by illuminator 93.

And, since this one adapter 51 within it portion be built-in with light source portion 91, thereby only extend signal cable portion 4 from this one adapter 51, the signal connector 4b of the end of this signal cable portion 4 is connected freely with blood processor 6G dismounting.

This blood processor 6G also is built-in with the power circuit 98 that holding wire 29f that is connected with illuminator 93 by an end and the holding wire 97 that is connected with this holding wire 29f connect in the blood processor 6 of for example Fig. 1.And this power circuit 98 is transfused to the output signal from D/A change-over circuit 35, also can be according to the luminous quantity of this output signal control illuminator 93.

And, in this one adapter 51, be provided with the guide hole 99 that is used for inserting logical treatment tool, also can insert logical treatment tool and dispose.

In addition, in rigid endoscope main body 2A, be provided with under the situation of the passage of inserting logical treatment tool, be provided with guide hole 99 with the opposed position of this passage.

According to this variation, owing to is connected and extends to the radical minimizing of the cable of rear side etc. with rigid endoscope main body 2A, thereby can improve operability.

More than, example as the rigid mirror in the surgical operation, according in operation (in the splanchnoscopy) demand that the endoscope of the endoscope of direct viewing type and stravismus type changes has been done record, yet owing to also have the demand that the endoscope with the endoscope of rigid mirror type and soft mirror type changes, thereby the endoscope of present embodiment is not limited to rigid mirror, also can be applied to soft mirror (flexible endoscope).Be that the embodiment of the flexible endoscope of soft (pliability) describes to the insertion section below.

(embodiment 5)

Below with reference to Fig. 9 to Figure 17 embodiments of the invention 5 are described.The purpose of present embodiment provides the fujinon electronic video endoscope and the endoscopic system of following structure, that is: have in the fujinon electronic video endoscope (fujinon electronic video endoscope of rigid type, the fujinon electronic video endoscope of soft type all can) of imaging apparatus at front end, by adopting near operating portion, have removable dismounting portion structure, even in splanchnoscopy, the doctor also can wait according to the function equal with being replaced with other fujinon electronic video endoscope and use.

In this case, identical before so-called other fujinon electronic video endoscope is meant kind and changes and carried out the new fujinon electronic video endoscope or the diverse fujinon electronic video endoscope (for example, differences such as visual field direction, rugosity, length, function) of sterilizing.

Therefore, in the present embodiment, by adopting near the dismounting portion being arranged at operating portion, make endoscope's part (Unit the 1st) of front side and endoscope's part (Unit the 2nd) dismounting structure freely of rear side, even it is medium at splanchnoscopy, the doctor also can be by only changing endoscope's part of front side, uses as the fujinon electronic video endoscope that has with (integral body) being replaced with the equal function of other fujinon electronic video endoscope etc.By adopting this structure, can save time and time when changing.

And, guaranteed interchangeability, even so that also can use for light supply apparatus and signal processing apparatus under the situation of existing fujinon electronic video endoscope that can not dismounting in dismounting portion.Below, fujinon electronic video endoscope is abbreviated as endoscope.

Fig. 9 illustrates the endoscopic system with embodiment 5, and Figure 10 illustrates the structure of the endoscope of the present embodiment that is provided with dismounting portion, and Figure 11 illustrates the structure of dismounting portion periphery.And, Figure 12 A and Figure 12 B illustrate the structure of the dismounting portion in the 1st variation, Figure 13 illustrates the structure of the dismounting portion in the 2nd variation, Figure 14 illustrates the structure of the dismounting portion in the 3rd variation, Figure 15 is illustrated in the structure of the coil periphery in the dismounting portion under the installment state, Figure 16 illustrates the structure of the dismounting portion in the 4th variation, and Figure 17 illustrates the structure that makes the receiving and transmitting part of using up (optical delivery portion).

Endoscopic system 101 shown in Figure 9 adopts basically in the endoscopic system 301 of conventional example shown in Figure 24, use is provided with the structure of endoscope of the dismounting portion of the feature that becomes in the present embodiment, by changing, can be used as other endoscope and simply carry out splanchnoscopy.

This endoscopic system 101 has: the 1st endoscope 102; Illumination light is offered the light supply apparatus 103 of the 1st endoscope 102; Illumination light is offered the light supply apparatus 103 of the 1st endoscope 102; Carry out the blood processor 104 of signal processing to being built in imaging apparatus in the endoscope 102; And by the signal of video signal of input from 104 outputs of this blood processor, the monitor 105 that the image of being made a video recording by imaging apparatus is shown.

As shown in figure 10, the 1st endoscope 102 adopts following structure: near the dismounting portion 107 the rear end of the insertion section 106 of pliability (soft), can make the two unit dismounting that become the front side of insertion section side endoscopic portion 108 and the rear side endoscopic portion 109 that becomes operating portion side (or cable side) be connected (installation) freely by singly touching.Below, front side endoscopic portion 108 is abbreviated as (become the 1st unitary) preceding side unit 108, and rear side endoscopic portion 109 is abbreviated as (become the 2nd unitary) back side unit 109.

Preceding side unit 108 has flexual insertion section 106, and the cardinal extremity in this insertion section 106 is provided with the adapter 111 that connects usefulness.

Back side unit 109 has: the operating portion 113 that is provided with the connector holder 112 that is connected freely with 111 dismounting of this adapter at its front end, and the universal cordage 114 that extends from this operating portion 113, the adapter 115 of the end of this universal cordage 114 is connected with light supply apparatus 103.

And the cable 117 that is connected with the lateral electric connector 116 that is arranged on this adapter 115 is connected with the blood processor 104 that carries out signal processing.The signal of video signal that is generated by this blood processor 104 is output to monitor 105.

Before side unit 108 insertion section 106 by the leading section 121 of the hard that is arranged on its front end, crooked freely bending section 122 and have flexual flexible portion (bending section) 123 and constitute, by making the operation of crooked knob 124 rotations that are arranged in this operating portion 113, can make bending section 122 bendings by crooked drive division 120.

And 106 interpolations are connected with the photoconduction 125 that transmits illumination light in the insertion section, the connector holder 112 of this photoconduction 125 by being connected with adapter 111, and photoconduction 126 optics interior with back side unit 109 are connected.This photoconduction 126 further passes through in the universal cordage 114, and it is terminal as being installed on the light supply apparatus 103 from the outstanding photoconduction pipe box of the end face of adapter 115.

Then, by aperture 130, incide the end face of photoconduction pipe box by the illumination light of the lamp of lighting from the lamp driving power of the lamp drive circuit 128 in the light supply apparatus 103 129 then by 131 accumulative illumination light of light collecting lens.

The illumination light that incides the end face of this photoconduction pipe box is transmitted by photoconduction 126,125, and the front end face outgoing of the photoconduction 125 from the illuminating window that is fixed on leading section 121 is thrown light on to the subject of affected part etc.

Illuminated subject is made the optical image imaging of subject at its image space by the object lens 133 on the observation window that is installed in the illuminating window adjacency.On this image space, dispose charge coupled cell (abbreviating CCD as) 134.

This CCD 134 is connected with signal cable 136 by the buffering IC 135 that carries out electric current amplification etc., and this signal cable 136 arrives and is arranged on the Figure 10 that inserts in the adapter 111 that leads in insertion section 106 and electric connector 137 shown in Figure 11.

As shown in figure 11, in electric connector 137, a plurality of contact pins 138 are given prominence to, and each holding wire 136a of signal cable 136 is connected with the cardinal extremity of contact pin 138.

And, in connector holder 112, also be provided with electric connector seat 139, so that opposed with the electric connector 137 that is arranged in this adapter 111.Insert the holding wire lead in the signal cable 141 of operating portion 113 sides respectively be arranged on electric connector seat 139 in the cardinal extremity of contact needle stand 140 be connected.

Then, by each contact pin 138 of electric connector 137 being inserted in each contact needle stand 140 of electric connector seat 139, signal cable 136 and 141 is electrically connected fetches and carry out electrical signal transfer mutually, also can carry out the mechanical connection (installation) of adapter 111 and connector holder 112 simultaneously.

Insert the signal cable 141 lead to operating portion 113 in and also insert and lead in universal cordage 114, the electric connector 116 from adapter 115 further is connected with CDS circuit 144 by cable 117 and blood processor 104 interior CCD drive circuits 143.

Then, drive signal from the CCD of this CCD drive circuit 143 and be applied in, thereby the optical image on the shooting face that is imaged on CCD134 is carried out opto-electronic conversion, export as ccd output signal to CCD134.

This ccd output signal is imported into CDS circuit 144, be drawn out of component of signal and convert baseband signal to, and be imported into image-processing circuit 145, be converted into signal of video signal and be output to monitor 105, show that on the display surface of monitor 105 shot object image of being made a video recording by CCD 134 is as endoscopic images.

And, be imported into aperture control circuit 132 in the light supply apparatus 103 from the signal of video signal of image-processing circuit 145 output, generate dim signal by this aperture control circuit 132, according to the opening amount of this dim signal control aperture 130, light modulation becomes suitable illumination light quantity.

And, as shown in figure 10, being provided with potentiometer 146 at the cardinal extremity of crooked knob 124, this potentiometer 146 also is connected with the contact needle stand 140 of electric connector seat 139 by holding wire 146a.

This contact needle stand 140 is connected with the Drive and Control Circuit 147 that constitutes crooked drive division 120 by connected contact pin 138 and the holding wire 147a that is connected with this contact pin 138.

This Drive and Control Circuit 147 makes crooked driving of bending section 122 electricity according to the detection signal of the potentiometer 146 that produces the signal of telecommunication corresponding with the operational ton of crooked knob 124.

As shown in Figure 10, bending section 122 makes a plurality of curved block (Wan Qu Horse) 151 rotate to couple together freely by rivet and constitute.And, in insertion section 106, along about, left and right directions inserts and to be connected with bent metal wire 152, the front end of each bent metal wire 152 is fixed on leading section 121, the rear end is connected with tooth bar 153.In addition, in Fig. 9 and Figure 10, show at about or 1 group of bending mechanism of left and right directions.In fact, be provided with at about and 2 groups of bending mechanisms of above-below direction.

Pinion 155 engagements on each tooth bar 153 and the rotating shaft that is installed in motor 154, by being driven by motor 154 rotations, traction or lax bent metal wire 152 make that the direction of bending section 122 under the situation of having drawn is crooked to be driven.

Each motor 154 is connected with Drive and Control Circuit 147, as mentioned above, and the corresponding bending section 122 that drives of this Drive and Control Circuit 147 with the operation of crooked knob 124.

And in the endoscopic system 101 of present embodiment, as shown in Figure 9, side unit 108 is connected with back side unit 109 with for example diverse preceding side unit 108B before making, and also can carry out splanchnoscopy as the 2nd endoscope.

Should before side unit 108B have the diameter value insertion section 106B different, that diameter is thinner of the insertion section 106 under the situation with for example preceding side unit 108.

And, this preceding side unit 108B adopt with for example before CCD134 under the situation of side unit 108 compare the few CCD 134B of pixel count.

And, side unit 108B is at the built-in memorizer 157 that stores id information of the periphery of for example adapter 111 before being somebody's turn to do, be used for producing should before the inherent id information of side unit 108B, this memorizer 157 is by (not being connected with the holding wire of signal cable 136) contact pin 138 connections in holding wire and the electric connector 137.

Then, under the situation that the 2nd endoscope that is connected with back side unit 109 as side unit 108B before will being somebody's turn to do uses, blood processor 104 is by reading the id information of this memorizer 157, can carry out corresponding driving and the signal processing of CCD 134B under the situation with the 2nd endoscope.

In addition, have the structure identical with the situation of preceding side unit 108.In addition, shown in the dotted line of Figure 11, can adopt the memorizer 157 of built-in ID sign indicating number generation usefulness in the pro-side unit 108.That is, by storage should before side unit 108 inherent identifying informations, can carry out easily be built in this preceding side unit 108 in the corresponding signal processing of CCD 134 etc.And blood processor 104 is built-in with the CPU 158 as control unit, controls the action of CCD drive circuit 143, CDS circuit 144 and image-processing circuit 145 according to the id information of memorizer 157.

Like this, in the present embodiment, preceding side unit 108 and back side unit 109 are formed with in dismounting portion 107 based on the electrical signal transfer unit of electric contact and based on the illumination light transfer unit to face that is configured to opposed two photoconductions 125,126.

According to the present embodiment that adopts this structure, before making by formation side unit 108 and afterwards side unit 109 in dismounting portion 107, be connected the 1st endoscope 102 of (installation), can with much the same use of situation of endoscope 302 shown in Figure 24.

That is, under the situation of the 1st endoscope 102, can be connected with blood processor 104 with light supply apparatus 103 shown in Figure 9 and use, and also can be connected with blood processor 104 and use with light supply apparatus 103 shown in Figure 24.And, the endoscope 302 of Figure 24 is connected with blood processor 104 with the light supply apparatus 103 of Fig. 9 uses.Therefore, this endoscope 102 and endoscopic system 101 have been guaranteed the interchangeability with existing endoscope 302 and light supply apparatus etc.

And, in the present embodiment, in the splanchnoscopy that uses the 1st endoscope 102, being replaced with the endoscope with insertion section that for example diameter is thinner in doctor's expectation carries out under the endoscopic situation, as long as side unit 108 before taking off from dismounting portion 107, and preceding side unit 108B with thinner insertion section 106B is connected with back side unit 109 get final product.

Like this owing near operating portion 113, be provided with by singly touching and dismounting dismounting portion 107 freely, even thereby in splanchnoscopy, also can be by only changing the unitary simple operation in front side, and use as diverse endoscope simply.

And, even will carry out in that certain patient's splanchnoscopy is finished under the endoscopic situation to next patient, also can set for and can carry out next endoscopic state, can significantly save time and time by only changing the unitary simple operation in front side.

Be described more specifically, in the splanchnoscopy of for example top digestive tube, this splanchnoscopy finishes, and in order to forward next patient's inspection to, under the situation of the conventional example of Figure 24, needs following operation.

Promptly, employed endoscope 302 in splanchnoscopy need be replaced with the operation of sterilized endoscope 302, and adapter 309 parts and light supply apparatus 303 are reconnected, simultaneously, make the adapter of an end of the cable 311 that is connected with adapter 309 and the operation that blood processor 304 reconnects etc., cost time and time.

By contrast, in the structure of present embodiment, owing to can realize by dismounting portion 107 to the operation of only changing in the endoscope 102 of preceding side unit 108 parts, thereby can save time and time.

And, in the present embodiment, owing to be provided with electric crooked driver element in the pro-side unit 108, thereby can make the designs simplification of back side unit 109 and dismounting dismounting portion 107 freely.More particularly, owing in the side unit 109 of back, be provided with the electric indicating member of bending direction and amount of bow, thereby in dismounting portion 107, use the transfer part of transmitting the signal of telecommunication to get final product, can change jointly with the transmission of other signals of telecommunication, can simplify.

And, as the crooked knob 124 generation bending directions of electric indicating member and the signal of telecommunication of amount of bow, compare with the situation of hand traction bent metal wire 152, use very little operation strength to get final product, according to present embodiment, can improve the operability under the situation of carrying out bending operation.

And, owing to adopt the common structure of using back side unit 109, thereby compare with the situation of having prepared different endoscopies respectively, user's financial burden can be alleviated.

Figure 12 A illustrates the structure of the 107B of dismounting portion in the 1st variation.In the 107B of this dismounting portion, in the dismounting portion 107 of Figure 10,, be provided with hook 161 and recess 162 respectively in order to carry out location of Zhou Fangxiang etc. making under adapter 111 and the situation that connector holder 112 is connected.

The connection maintenance function of the location that increases Zhou Fangxiang for 1 position of the Zhou Fangxiang in adapter 111 when being connected, be provided with for example outstanding hook 161 of L word shape roughly in adapter 111 sides, and the recess 162 that this hook 161 is snapped in another connector holder 112 side being provided with.

Be provided with near the inlet of this recess 162 last by engaging of spring 163 application of forces projection 164 with the vertical direction of direction of inserting hook 161 (being last direction among Figure 12 A).

Then, when mounted, the user is positioned at the enterprising line operate in position of recess 162 to hook 161, so that adapter 111 is pushed connector holder 112.

Like this, the tapered portion of the front end by hook 161, make projection 164 down side shifting be entrapped in the recess 162.In the time of in being installed in recess 162, projection 164 is got back to upside by the elastic force of spring 163, prevents that by the regulation elastic force of spring 163 hook 161 from coming off from recess 162.

By the operation of carrying out breaking away from, adapter 111 can be taken off from connector holder 112 by this power more than elastic force.Other structures are structures identical with Figure 10.

According to this variation, hook 161 and recess 162 can be used for the location under the situation that dismounting portion 107 is connected, and the connection that can increase under situation about having connected keeps intensity.In addition, has the identical effect of situation with the structure of Figure 11.

In addition, in Figure 12 A, for carrying out keeping being provided with hook 161 and recess 162 with being connected in the location that makes the Zhou Fangxiang under adapter 111 and the situation that connector holder 112 is connected, yet the 107B ' of dismounting portion that can be shown in Figure 12 B is such, be provided with hook-shaped portion 166 and 167 respectively, hook-shaped portion 166 and 167 is hung up mutually, the location under the situation that is used to connect.

That is, can adopt following structure:,, adapter 111 is connected with connector holder 112 if do not make hook-shaped portion 166 and 167 (at Zhou Fangxiang) position consistency making under adapter 111 and the situation that connector holder 112 is connected.

In addition, structure is identical with the situation of Figure 12 A.And the action effect under the situation of the structure that adopts Figure 12 B is also roughly the same with the situation of Figure 12 A.

In addition, as the positioning unit under the situation about connecting, for example shown in Figure 12 B, can labelling 169a, the 169b etc. that position alignment is used be set at outer peripheral face of adapter 111 and connector holder 112 etc.

Figure 13 illustrates the structure of the 107C of dismounting portion in the 2nd variation.In the 107C of this dismounting portion, use will become the resin mold 172 of the hard that the opening of cylindrical shell 171 of the outer dress member of adapter 111 seals, and the end of a plurality of contact pins 173 and photoconduction 125 be embedded fix.

Holding wire 136a and the holding wire 147a that is connected with Drive and Control Circuit 147 be respectively by soft soldering, and is connected by the cardinal extremity that not only has sealing function but also have each contact pin 173 of adapter 111 inboards that the resin mold 172 as the function of insulator sealed.And, be provided with the electrode 173a that is wholely set at the front end of each contact pin 173 at the lateral surface of resin mold 172, this electrode 173a be configured to the lateral surface of resin mold 172 on one side.

On the other hand, in connector holder 112, the inboard of opening of cylindrical shell 174 of outer dress member that becomes this connector holder 112 is by insulation board 175 sealing of for example rubber-like rubber system, and the end of a plurality of contact pin (seats) 176 and photoconduction 126 embedded fixes.

Holding wire 141a is connected by soft soldering respectively with the cardinal extremity of the contact pin 176 of connector holder 112 inboards that sealed by insulation board 175.And, being provided with the electrode 176a that is wholely set at the front end of each contact pin 176 at the lateral surface of insulation board 175, this electrode 176a is configured to from the end face of connector holder 112 outstanding a little.

Then, under pressed state, be connected, electrode 173a is contacted respectively with 176a and be in electric conducting state by each end face that makes adapter 111 and connector holder 112.

And the internal diameter of cylindrical shell 174 is provided with the external diameter of the cylindrical shell 171 of adapter 111 chimeric and keep the fitting portion 174a of installment state.

Other structures are structures identical with the embodiment 5 shown in Figure 10 waits.This variation is owing to adopt as shown in figure 13 that to make each end face of adapter 111 and connector holder 112 almost be planar structure, thereby can simply carry out removing at moisture that has carried out the end face under washing or the disinfectant situation or dirt.In addition, have the action effect roughly the same with embodiment 5.

Figure 14 illustrates the structure of the 107D of dismounting portion in the 3rd variation.In the 107C of dismounting portion of Figure 13, adopted contact pin 173 and contact pin 176, and in the 107D of this dismounting portion, adopted by electromagnetic coupled and carried out the coil 180,181 that signal transmits in the noncontact mode.

Be provided with in the adapter 111 in the pro-side unit 108: the transmission circuit 182 that is connected with 147a with holding wire 136a, and be connected with this transmission circuit 182, can carry out a plurality of coils 180 that two-way signaling transmits by electromagnetic coupled.

And, in the connector holder 112 of back in the side unit 109, be provided with: the transmission circuit 183 that is connected with 146a with holding wire 141a, and a plurality of coils 181 that are connected, can carry out the two-way signaling transmission in the noncontact mode with this transmission circuit 183 by electromagnetic coupled.

Transmission circuit 182,183 amplifies the signal that will send respectively and offers coil 180 or 181, and will be amplified by the signal that transmits with the electromagnetic coupled of opposed coil 181 or 180 by coil 180 or 181.That is, transmission circuit 182,183 has the buffer function that can transmit the signal that will receive and dispatch (send or receive) by coil 180,181 efficiently.

And coil 180 and 181 for example is embedded in the resin mold 172a and 172b, under the situation that adapter 111 and connector holder 112 have been installed, as shown in figure 15, coil 180 and 181 be arranged near and opposed.

Each coil 180,181 on magnet 180a, the 181a of the big for example U word shape of magnetic susceptibility and respectively forms Wire-wound, can be between opposed coil 180,181 carries out the signal transmission efficiently by electromagnetic coupled.

Other structures are structures identical with the situation of Figure 13.According to this variation, because as shown in figure 15, the both ends of the surface of adapter 111 and 112 are being set under the planar state, can carrying out the transmitting-receiving of the signal of telecommunication, and can adopt to make the structure of end face by resin mold 172a and 172b sealing, thus can be simply and the short time wash or sterilize.

Under the situation of the dismounting portion 107 of embodiment 5, in electric connector 137 and electric connector seat 138, owing to adopt the structure of the jog of common electrical contact with contact pin 138 and contact needle stand 139, thereby under the situation of washing and sterilizing or sterilizing, in order to prevent that medicinal liquid, steam, gas etc. from leaking into electric contact, use tarpaulin to implement.

By contrast, in this variation, owing to adopt without the 107D of dismounting portion of the contactless structure of the electric contact of jog, thereby waterproofing design is easy, can wash under the state of no above-mentioned tarpaulin and sterilizes or sterilize.That is, also can save washing and time and the time of sterilization in the operation.

In addition, have the action effect roughly the same with the situation of embodiment 5.

Figure 16 illustrates the structure of the 107E of dismounting portion in the 4th variation.This variation is carried out signal transmitting and receiving (can use optical fiber as described later) among the 107E of dismounting portion according to the optical signal of light-emitting component and photo detector in the noncontact mode.

The 107E of dismounting portion of Figure 16 uses light emitting diode (abbreviating LED as) 184,185 and phototransistor (abbreviating PT as) 186,187 and replacement coil 180,181 in the 107D of dismounting portion of Figure 14.And, adopt the buffer circuit 188,189 amplify and replace transmission circuit 182 and 183.

Figure 17 illustrates the details of the receiving and transmitting part that making among Figure 16 use up.For example, LED 184 has carried out the ccd output signal that electric current amplifies and has converted optical signal to being cushioned circuit 188, outputs to opposed PT 185 in the noncontact mode.PT 185 converts the optical signal that is received to the signal of telecommunication and outputs to buffer circuit 189, and buffer circuit 189 amplifies the signal of telecommunication.

And a plurality of LED 187 drive conversion of signals to CCD and become optical signal, output to opposed PT 186 respectively.And, also transmitted by LED 187 and PT 186 from the signal of potentiometer 146.

And preceding side unit 108 needed dc sources generate by the electromagnetic coupled of coil 181 and 180.

The coil 181 of back side unit 109 is driven according to AC signal, by the coil 180 of electromagnetic transfer side units 108 before opposed with this coil 181, the AC signal that is delivered to this coil 180 is carried out rectification and smoothing processing and is generated dc source by power circuit 190 in the noncontact mode.Then, this dc source is provided for element or the circuit that CCD 134 grades need dc source.

In addition, Figure 17 shows the generation unit of dc source, yet also can be applied to the situation of the 3rd variation of Figure 14 equally.The situation of the 3rd variation of the action effect of this variation and Figure 14 is roughly the same.

(embodiment 6)

Below with reference to Figure 18 and Figure 19 embodiments of the invention 6 are described.Figure 18 illustrates the endoscopic system 201 with embodiment 6.

This endoscopic system 201 is made of the endoscope 202 of embodiment 6, light supply apparatus 103, blood processor 104 and the monitor 105 the same with embodiment 5.

In the endoscope 102 of embodiment 5, pro-side unit 108 sides are provided with the crooked drive division 120 as electric crooked driver element, and in this endoscope 202, be provided with the motor 154 that becomes crooked drive source near for example connector holder 112 inboards in the operating portion 113 of back side unit 109.

The end face of the rotating shaft connector holder 112 of motor 154 is provided with outstanding engaging with recess 204, with outstanding the engaging with teat 205 engagings of end face of the adapter 111 of the past side unit 108, transmits the revolving force of motor 154.In addition, around the rotating shaft of recess 204 and teat 205, be respectively arranged with the O type ring 206 and 207 of watertight and airtight usefulness.

Front end at the axis body 208 that is provided with each teat 205 is provided with gear 209, and each gear 209 is connected with the rear end of bent metal wire 152 and engages with jog 211a in being arranged on the bar 211 that moves freely.

Then, the rotation by motor 154 moves forward and backward bar 211, and traction or lax bent metal wire 152 can make bending section 122 bendings.

And signal cable 136 is connected with change-over circuit 213,214 respectively with 141, and is connected with optical fiber 215,216.

Then, change-over circuit 213,214 becomes optical signal to electrical signal conversion and outputs to optical fiber 215,216, and optical signal is converted to the signal of telecommunication and outputs to signal cable 136,141.

For example the CCD of signal cable 141 drives signal and converts optical signal to by change-over circuit 214, and outputs to the cardinal extremity face of optical fiber 216, from the front end face of this optical fiber 216 light is outputed to opposed optical fiber 215 sides.

Then, the optical signals change-over circuit 213 of this optical fiber 215 converts the signal of telecommunication (CCD drives signal) to, and the holding wire of process signal cable 136 is applied in to CCD 134.Otherwise, convert optical signal from the ccd output signal of CCD134 side output to by change-over circuit 213, be imported into change-over circuit 214 through optical fiber 215,216.Then, be converted into the signal of telecommunication (ccd output signal), the holding wire of process signal cable 141 is imported into blood processor 104.

And, be provided with for example cross plate 217 that bending operation is used at the outer peripheral face of operating portion 113.This cross plate 217 is provided with the switch of the bending indication usefulness of upper and lower, left and right at 4 positions being represented by U, D, L, R, these switches are connected by holding wire 218 control circuit 219 interior with being arranged on operating portion 113.

This control circuit 219 drives according to the rotation of the switching manipulation control motor 154 of cross plate 217.

And, in the present embodiment,,, be provided with Magnet 221 and 222 in order to keep that location and installment state are installed at the end face of adapter 111 and connector holder 112.

And these Magnet 221 and 222 have Magnet portion and electric contact portion, and these two parts connect respectively.

That is, the Magnet 222 by the power line with signal cable 141 is connected can offer the power line that is connected with opposed Magnet 221 to power supply.The power line that is connected with this Magnet 221 becomes the holding wire of the power supply transmission usefulness of signal cable 136.

And, be provided with the memorizer 157 that id information produces usefulness in the pro-side unit 108, can be delivered to back side unit 109 to this id information by change-over circuit 213.And, in the side unit 109 of back, also be provided with the memorizer 224 that id information produces usefulness, can be delivered to blood processor 104 to this information.

Blood processor 104 is according to these id informations, generates and corresponding CCD driving signals such as the pixel count of CCD 134, characteristic, and the signal processing when being controlled at the generation signal of video signal.In addition, 1 preceding side unit 108 only is shown in Figure 18, yet as shown in Figure 9, other different preceding side unit such as kind, characteristic is connected with back side unit 109 uses.

Figure 19 illustrates the adapter 111 of the formation dismounting 107F of portion and near the structure the connector holder 112 with the perspective view of looking side ways.

Present embodiment is owing to be provided with electric crooked driver element in back side unit 109 sides, thereby compares with the situation of embodiment 5, and the internal structure of side unit 108 is simplified before can making.

That is, owing in the common back side unit 109 that uses, be provided with electric crooked driver element, thereby can make the designs simplification of the preceding side unit 108 that becomes the side that is replaced, and also can carry out cost degradation.In addition, have the effect roughly the same with embodiment 5.

Figure 20 illustrates the structure of the 107G of dismounting portion in the 1st variation.This variation adopts gear 231 and 232 and replace the engaging of the jog among the embodiment 6.In addition, structure is identical with embodiment 6.Present embodiment has the action effect roughly the same with embodiment 6.

Figure 21 illustrates the structure of the 107H of dismounting portion in the 2nd variation.This variation adopts Magnet 241 and 242 and replace the engaging of the jog among the embodiment 6.

That is, make Magnet 242 rotation by rotation with motor 154, also can make with its arranged opposite, by Magnet 214 rotations of magnetic attraction generation effect.

And Figure 22 illustrates the situation of observing the structure of Figure 21 from transverse direction with perspective view.In this case, adopt the structure of Magnet 241,242 being rotated the inboard that is configured in the sealing plate 243,244 that each end face with adapter 111 and connector holder 112 seals freely.

Therefore, can be set at the plane to the end face of adapter 111 and connector holder 112, can be simply and the short time wash and sterilize.

In addition, structure is identical with embodiment 6.This variation has as mentioned above can simply wash and the disinfectant effect.In addition, have the action effect roughly the same with embodiment 6.

Figure 23 illustrates the endoscope 252 of the 3rd variation.This endoscope 252 for example in the endoscope of Figure 18, is provided with operating portion cover 253 in the pro-side unit.

That is, at the outer peripheral face of adapter 111, operating portion cover 253 extends to rear side, can use this operating portion cover 253 to cover the front part at least of the operating portion 113 of back side unit 109.

And, in this operating portion cover 253, be provided with and cover the roughly dish cover 254 of the bending operation dish 217B of circular plate shape.In bending operation dish 217B, with the same switch that is provided with the bending indication of carrying out 4 directions of situation of above-mentioned cross plate 217.

Operating portion 113 grades are carried out sterilization treatment in advance by the mechanical material part of doctor's contact before operation in operation, yet, also have and use the such bag shape cover of the intact drape of sterilization treatment to cover to use and replace mechanical material is partly carried out sterilization treatment method as method for distinguishing.

In this variation,, be wholely set and the consistent operating portion cover 253 that becomes soft drape of shape that can cover the operating portion 113 that connects this preceding side unit 108 in the rear end of the high preceding side unit 108 of usage frequency.

By adopting this structure, do not need to change the time of drape to operating portion 113, other preceding side unit 108 can be installed use.

In addition, part such as the various embodiments described above etc. is made up and the embodiment that constitutes waits and also belongs to the present invention.

Utilizability on the industry

Be separable near being arranged at operating portion the dismounting section by front side unit and rear side unit structure The endoscope that becomes, even in endoscopy, the doctor also can be replaced with other front side unit and come simple Singly carry out endoscopy.

Claims (7)

1. an endoscope is characterized in that, this endoscope has:

Endoscope main body, it has the insertion section, and is built-in with image unit;

The photoconduction connecting portion, it is arranged on the incident end of inserting the photoconduction that leads to the transmission illumination light in above-mentioned insertion section;

The holding wire connecting portion, it is connecting the end of the holding wire that is electrically connected with above-mentioned image unit;

Cable unit, its have respectively integratedly with above-mentioned endoscope main body in the above-mentioned photoconduction connecting portion connecting portion that dismounting is connected freely with the holding wire connecting portion, and insert and be connected with the holding wire that transmits the signal of telecommunication; And

Light source portion, it is set to mutually opposedly with above-mentioned photoconduction connecting portion in above-mentioned connecting portion, is used for providing illumination light to inserting the above-mentioned incident end lead to the above-mentioned photoconduction in above-mentioned insertion section.

2. endoscope according to claim 1 is characterized in that, above-mentioned cable unit has and above-mentioned photoconduction connecting portion and holding wire connecting portion the 1st and the 2nd connecting portion that is connected freely of dismounting respectively.

3. endoscope according to claim 1 is characterized in that, above-mentioned cable unit can be connected respectively with the holding wire connecting portion with above-mentioned photoconduction connecting portion by the connection adaptor portion that one connects.

4. endoscope according to claim 2 is characterized in that, above-mentioned cable unit has the switch element as indicating member that control signal is sent to signal processing apparatus.

5. endoscope according to claim 2 is characterized in that, above-mentioned cable unit has whether above-mentioned the 1st connecting portion is connected the connection detecting unit that detects with above-mentioned photoconduction connecting portion.

6. endoscope according to claim 1 is characterized in that, dismantled and assembled being equipped with freely inciding the optical light filter that the slotting wave band that leads to the illumination light of the photoconduction in above-mentioned insertion section limits on the above-mentioned connecting portion.

7. endoscope according to claim 1 is characterized in that above-mentioned light source portion comprises the light source of electroluminescence.

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