CN1223845A - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
CN1223845A
CN1223845A CN 98123871 CN98123871A CN1223845A CN 1223845 A CN1223845 A CN 1223845A CN 98123871 CN98123871 CN 98123871 CN 98123871 A CN98123871 A CN 98123871A CN 1223845 A CN1223845 A CN 1223845A
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CN
China
Prior art keywords
rigid portion
end rigid
endoscope
radius
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 98123871
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Chinese (zh)
Inventor
堀越一臣
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Toshiba Corp
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Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to CN 98123871 priority Critical patent/CN1223845A/en
Publication of CN1223845A publication Critical patent/CN1223845A/en
Pending legal-status Critical Current

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Abstract

An endoscope facilitates to insert into body and eases the burden of patients and operator. The circular bead which is set at border from the front face to the flank of the endoscope is not even but is smoothly connected by a plurality of different circular bead with the continuous changing radius.

Description

Endoscope
Technical field
The present invention relates to industry and medical endoscope, particularly about the improved endoscope of the shape of its front end rigid portion.
Background technology
Endoscope generally can be divided into fibrescope device and electronic endoscope apparatus, and the profile of inserting the endoscope distal end rigid portion of subject inside nearly all is same shape in forward sight type endoscope.
Below with reference to the overall appearance figure of endoscope of Fig. 3 the technology of existing fujinon electronic video endoscope is described.
The formation of endoscope (1) comprises for the operator operates the manual operation unit (3) of endoscope, the long duct (11) that extends out from operating portion (3), being arranged on the adjusting of catheter proximal end portion by the angle button (5) of operating portion (3) can crooked up and down bending section (13), be arranged on the front end rigid portion (15) with image pickup optical system and solid-state imager of the leading section of bending section (13), the adapter (19) that the universal flexible pipe (17) that extends out from operating portion and being used for is connected with the endoscope apparatus body (not shown) that is arranged on general flexible pipe leading section.
Adorn light sources such as xenon lamp in the endoscope apparatus body, the illumination light that this light source sends incides adapter (19), and the leaded light rope by passing universal flexible pipe (17), conduit (11) and bending section (13) each several part inside also shines subject inside from the illuminating window of the front that is arranged on front end rigid portion (15).
The reflected light that sends from the subject inside that irradiated illumination light is thrown light on is by imaging on the solid-state imager of object lens CCD (charge-coupled image sensor) in being arranged on the front end rigid portion etc., and is converted to picture signal and demonstrates the subject image on the monitor in being arranged on the endoscope apparatus body.
In endoscopic main body, be provided with and utilize pump to carry the water sending device of supplying gas of air or water to endoscope, the water sending device of from then on supplying gas through passing adapter (19), universal flexible pipe (17), conduit (11) and bending section (13) each several part inside snorkel and flow pipe and send air and water from supply gas nozzle and the delivery nozzle of the front that is arranged on front end rigid portion (15) to object lens and illuminating window.
The disposal apparatus pliers that is used for carrying out in subject inside medical treatment can also be inserted in the pincers road junction (9) of endoscope (1) except attracting body fluid, residue etc., the leading section of pliers can be stretched out by the pincers road junction of the front that is arranged on the front end rigid portion, carries out medical treatment while can observe endoscopic images.
Fig. 4 is the front view and the side view of the front end rigid portion of existing forward sight type endoscope.As shown in Figure 4, be provided with in the front of the front end rigid portion (15) of existing endoscope picked-up subject image object lens (21), to subject send illumination light illuminating window (23), water delivery nozzle (27) that emission is used to clean object lens (21) stain water, be used to blow away attached to the water on the object lens (21) or air is sent into subject body cavity inside air taking port (25) and as the pincers road junction (29) of the disposal apparatus gateway of in subject, disposing.In air taking port (25) and water delivery nozzle (27), be separately installed with the nozzle (not shown).
Inner or the resistance in order to reduce to insert for unlikely damage subject when inserting endoscope and alleviate examinee's misery, to from the front of the front end rigid portion (15) of near cylindrical to its lateral edge execution chamfering and make identical fillet (37).
Resistance when the big more then endoscope of the radius of this circle (37) inserts is more little, and the danger of damage subject is just more little.But existing radius of circle is to be defined as same radius under the scope that does not influence parts such as object lens, the illuminating window that is configured on the front end rigid portion, the delivery nozzle of supplying gas, pincers road junction and peristome.The radius that promptly is subjected to determining with the restriction that the influence of parts is interfered in 360 ° around front end rigid portion (15) front is certain, so the fillet of edge part can only very little (being approximately 0.5mm).
Therefore; with regard to the radius of circle at front end rigid portion edge in the existing endoscope, can't be made into very big circle, thereby because of the difference of different, the operator's of examinee's age and state experience and the technology problem that just resistance makes greatly in front end rigid portion damage examinee's the body and causes suffering to the examinee when regular meeting endoscope occurs and inserts.
In addition, thin footpath Progress in technique along with the insertion section of endoscope, the more and more littler tendency of diameter that the front end rigid portion occurs, the radius of curvature of circle that links edge part therewith mutually is also more and more littler, this is with regard in easier damage examinee's the body and cause unnecessary hemorrhage, and this will cause that whether must judge hemorrhage is that damage by endoscope causes, and causes the problem of obstacle for the observation of endoscope.
Summary of the invention
The problem that exists in view of existing endoscope the objective of the invention is to propose a kind of inside of subject and endoscope of insertion processing ease can not damaged when inserting in endoscope.
For arriving above-mentioned purpose, endoscope provided by the invention is characterised in that the end face edge circle on every side of its front end rigid portion has a plurality of continually varying radius of circles.
The radius of corner of endoscope of the present invention changes continuously, and making has minimum fillet by the fillet that has the maximum bigger than existing endoscope on the top of front end rigid portion front in the basifacial certain angle scope of pro-.
The invention is characterized in that promptly be not same fillet from the front end face of endoscope to the fillet on its lateral edge part, but a plurality of fillet, and owing to the radius of the fillet between different a plurality of fillets of adjacency is that continually varying is accomplished level and smooth adjacency.
By the structure of endoscope of the present invention, endoscope inserts can be very smooth in the body, can alleviate the burden of patient and endoscope operator.
In addition, by the structure of endoscope of the present invention, can also can on the front end face of front end rigid portion, install object lens with in the front end rigid portion radius of each several part around the above-mentioned end face not being strengthened as far as possible in the scope that interferes of the parts that are provided with or peristome.
Brief description
Figure 1A is the front view of the front end rigid portion of endoscope of the present invention.
Figure 1B is the side view of the front end rigid portion of endoscope of the present invention.
Fig. 2 A is the front view of front end rigid portion of another example of endoscope of the present invention.
Fig. 2 B is the side view of front end rigid portion of another example of endoscope of the present invention.
Fig. 3 is the overall diagram that the structure of endoscope is shown.
Fig. 4 A is the front view of the front end rigid portion of existing endoscope.
Fig. 4 B is the side view of the front end rigid portion of existing endoscope.
Detailed description of the present invention
Below with reference to Fig. 1 and Fig. 2 the example of endoscope of the present invention is elaborated.
Shown in Figure 1A, forward sight type endoscope has the front end rigid portion (15) of a near cylindrical, be provided with the object lens (21) of picked-up subject image in its front, send illuminating window (23a), (23b) of illumination light to subject, emission be used to clean object lens (21) dirt water water delivery nozzle (27), be used to blow away attached to the water on the object lens (21) or air sent into the air taking port (25) of the body cavity inside of subject, and as the pincers road junction (29) of the disposal apparatus gateway of in subject, disposing.In air taking port (25) and water delivery nozzle (27), be separately installed with the nozzle (not shown).
Shown in Figure 1A, when the front by front end rigid portion (15) forms circle to the side, owing to do not arrange parts and peristome in the front upper of front end rigid portion (15),, do not worry yet and to interfere with parts of being arranged and peristome even the radius of curvature of front upper is strengthened.
Consider the configuration of this front end rigid portion, the maximum fillet (31) that radius is 1.5mm (R1.5) can be set in the front upper of front end rigid portion (15).In addition, the front lower of former end rigid portion (15) is the certain angle at center, and such as 230 °, it is the minimum fillet (33) of 0.5mm (R0.5) that radius is set in the scope.The radius of the part between two ends of this maximum fillet (31) and minimum fillet (33) by maximum 1.5mm to changing continuously the minima 0.5mm.
This minimum fillet (33) though radius roughly the same with the numerical values recited of existing endoscope distal end rigid portion with same radius of corner, in the remaining 130 ° of scopes of 230 ° scope removing minimum fillet (33), can be provided with than the bigger radius of corner of existing endoscope distal end rigid portion.
Therefore, resistance when endoscope inserts can reduce, and irrelevant with age of examinee and state and operator's experience and technology, the resistance when inserting because of endoscope reduces to make to insert and becomes easily, and the worry of problem of the front end rigid portion being damaged examinee's body inside no longer exists.
Below with reference to Fig. 2 the 2nd example of endoscope of the present invention is described.
Shown in Fig. 2 A, identical with above-mentioned example, be provided with object lens (21), illuminating window (23a), (23b), air taking port (25), water delivery nozzle (27) and pincers road junction (29) in the front of the front end rigid portion (15) of the near cylindrical of forward sight type endoscope.In addition, identical with above-mentioned example, in the front upper of front end rigid portion (15) the maximum fillet (31) that radius is 1.5mm (R1.5) is set.
In this example, the radius of corner of the periphery from illuminating window (23a) to the part that clamps road junction (29) has strengthened.Though this a part of fillet strengthens, noticed that unlikely generation is interfered between these parts and peristome and fillet.
On the central part as the part of minimum fillet (33) in aforementioned example the very big fillet (35) that radius is 1.0mm (R1.0) is set this example from illuminating window (23a) to the periphery that clamps road junction (29) part, and from then on very big fillet (35) slowly reduces towards the directional curvature radius at illuminating window (23a) and pincers road junctions (29).As a result, radius is that the scope of the minimum fillet (33) of 0.5mm (R0.5) narrows down to 140 ° scope from 230 ° scope of aforementioned example.
In this example, owing to compared the expanded range of the big part of radius of corner with aforementioned example, and the resistance of endoscope when inserting reduced, so insert easilier, no longer worries endoscope distal end rigid portion damage subject inside.
Object lens, air taking port, water delivery nozzle etc. are in the essentially no any change of configuration of the front of front end rigid portion in above example, but by various pipelines such as air taking port, water delivery nozzle are disposed the radius that just can further strengthen fillet on leading section precedence centre direction.
In addition, though above-mentioned explanation only is the example at direct viewing type endoscope, purport of the present invention also is applicable to the endoscope of other modes, i.e. stravismus type endoscope and side-view type endoscope.In addition, also be applicable to ultrasonic endoscopic.

Claims (12)

1. endoscope, the conduit that comprises operating portion, extends out from operating portion, the front end that is arranged on conduit (11) with angle button by above-mentioned angle button can be crooked bending section, be arranged on the front end rigid portion with imaging apparatus that the image of subject is derived of the front end of this bending section, it is characterized in that, constitute by the continually varying fillet to its lateral edge part from the front of above-mentioned front end rigid portion.
2. the endoscope described in claim 1 is characterized in that, a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are continually varyings.
3. the endoscope described in claim 1 is characterized in that, the radius maximum of the front upper of front end rigid portion among a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion.
4. the endoscope described in claim 1 is characterized in that, the front lower with the front end rigid portion among a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion is the radius minimum of the certain angle scope at center.
5. the endoscope described in claim 1, it is characterized in that a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are that the least radius in the certain angle scope at center is a continually varying to the front lower with the front end rigid portion from the maximum radius of the front upper of front end rigid portion.
6. the endoscope described in claim 1 is characterized in that, with in the front end rigid portion radius of the edge part fillet on the each several part around the above-mentioned end face is not being strengthened as far as possible in the scope that interferes of the parts that are provided with or peristome.
7. the endoscope described in claim 3 is characterized in that, the radius of the edge part fillet of the front upper of above-mentioned front end rigid portion is about 1.5mm.
8. the endoscope described in claim 4 is characterized in that, is that the certain angle scope at center is about 230 ° and even 140 ° with the front lower of the edge part radius of corner minimum of above-mentioned front end rigid portion.
9. the direct viewing type endoscope described in claim 1 is characterized in that, a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are continually varyings.
10. the stravismus type endoscope described in claim 1 is characterized in that, a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are continually varyings.
11. the side-view type endoscope described in claim 1 is characterized in that, a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are continually varyings.
12. the ultrasonic endoscopic described in claim 1 is characterized in that, a plurality of radiuses of the rounded at the edge of above-mentioned front end rigid portion are continually varyings.
CN 98123871 1997-11-06 1998-11-06 Endoscope Pending CN1223845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98123871 CN1223845A (en) 1997-11-06 1998-11-06 Endoscope

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP304371/97 1997-11-06
CN 98123871 CN1223845A (en) 1997-11-06 1998-11-06 Endoscope

Publications (1)

Publication Number Publication Date
CN1223845A true CN1223845A (en) 1999-07-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 98123871 Pending CN1223845A (en) 1997-11-06 1998-11-06 Endoscope

Country Status (1)

Country Link
CN (1) CN1223845A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340204C (en) * 2002-02-28 2007-10-03 奥林巴斯株式会社 Hood for endoscope
CN100367904C (en) * 2003-12-19 2008-02-13 田德扬 Inward vision mirror apparatus
CN100496378C (en) * 2004-08-19 2009-06-10 奥林巴斯株式会社 Electrically-operated curving control device
CN100581439C (en) * 2004-08-19 2010-01-20 奥林巴斯株式会社 Electrically-operated curving control device
CN101115432B (en) * 2005-02-14 2011-07-27 奥林巴斯株式会社 Endoscope
CN110267577A (en) * 2017-02-22 2019-09-20 奥林巴斯株式会社 Endoscopic procedure portion and endoscope with it

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100340204C (en) * 2002-02-28 2007-10-03 奥林巴斯株式会社 Hood for endoscope
CN100367904C (en) * 2003-12-19 2008-02-13 田德扬 Inward vision mirror apparatus
CN100496378C (en) * 2004-08-19 2009-06-10 奥林巴斯株式会社 Electrically-operated curving control device
CN100581439C (en) * 2004-08-19 2010-01-20 奥林巴斯株式会社 Electrically-operated curving control device
CN101115432B (en) * 2005-02-14 2011-07-27 奥林巴斯株式会社 Endoscope
CN110267577A (en) * 2017-02-22 2019-09-20 奥林巴斯株式会社 Endoscopic procedure portion and endoscope with it
CN110267577B (en) * 2017-02-22 2021-11-16 奥林巴斯株式会社 Endoscope operation section and endoscope having the same

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