CN109497914A - Curvature section of endoscope and endoscope - Google Patents
Curvature section of endoscope and endoscope Download PDFInfo
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- CN109497914A CN109497914A CN201811592766.8A CN201811592766A CN109497914A CN 109497914 A CN109497914 A CN 109497914A CN 201811592766 A CN201811592766 A CN 201811592766A CN 109497914 A CN109497914 A CN 109497914A
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- Prior art keywords
- annular
- groove
- arm
- protrusion
- curved
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0055—Constructional details of insertion parts, e.g. vertebral elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0057—Constructional details of force transmission elements, e.g. control wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
- A61B1/008—Articulations
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
Abstract
The present invention provides a kind of curvature section of endoscope and endoscopes.Curvature section of endoscope includes the curved block of multiple head and the tail connections, is connected between two neighboring curved block by interconnecting piece, and interconnecting piece includes groove and protrusion, protrusion is rotatably contained in groove.The end face of curved block is respectively equipped with bearing surface in the two sides of interconnecting piece, and protrusion relatively rotates in groove and arrives maximum angle, and the bearing surface of adjacent two curved block abuts against, and makes to be in maximum bend angle between two curved blocks and enters lockup state.The two sides of protrusion are respectively equipped with annular arm, and the two sides of groove are respectively equipped with annular groove, and annular arm correspondence is contained in annular groove.Annular arm is rotatably contained in annular groove, and annular arm is more than or equal to the maximum angle that protrusion is relatively rotated with groove along the corresponding angle in annular groove arc sliding track.Above-mentioned curvature section of endoscope is able to maintain between two curved blocks and is stably connected with.
Description
Technical field
The present invention relates to a kind of endoscope components, especially a kind of curvature section of endoscope and endoscope.
Background technique
Sight glass is a kind of very widely used medical treatment and industrial detection instrument, bending section be pulled by wirerope it is multiple
The method for the snake Bones and joints being connected with each other realizes bending deflecting.Adjacent snake Bones and joints connect to form hinge by closing-up,
To realize relative rotation.
But since the manufacture of closing-up connection and the required precision of assembly technology are higher, if production technology or behaviour
Make technique slightly error, then there are certain defects for the riveting that will lead between two snake Bones and joints.Particularly with internal diameter compared with
Small thin diameter endoscope still just seems more tired using the fixed connection method of rivet to realize between two snake Bones and joints
It is difficult.
Therefore, the smooth production for realization to the lesser endoscope of internal diameter, the She Guguan to develop production out without rivet
It saves, between two adjacent snake Bones and joints is riveted by rivet.Simultaneously as be not provided with rivet, then two it is adjacent
Snake Bones and joints between bonding strength it is weaker.In use, junction is easy to happen between two neighboring snake Bones and joints
Deformation or displacement, cause to can not achieve relative rotation between two adjacent snake Bones and joints, influence the normal use of endoscope.
Summary of the invention
The purpose of the present invention is to provide a kind of bendings of endoscope for being able to maintain and being stably connected between two curved blocks
Portion and endoscope.
A kind of curvature section of endoscope passes through company between two neighboring curved block including the curved block that multiple head and the tail connect
Socket part connection, and the interconnecting piece includes groove and protrusion, the protrusion is rotatably contained in the groove, the curved block
End face be respectively equipped with bearing surface in the two sides of the interconnecting piece, the protrusion relatively rotates in the groove arrives maximum angular
Degree, the bearing surface of adjacent two curved block abut against, and make to be in maximum bend angle between two curved blocks and enter lock
Only state；
The two sides of the protrusion are respectively equipped with annular arm, and the two sides of the groove are respectively equipped with annular groove, the annular arm
Correspondence is contained in the annular groove, and the annular arm is rotatably contained in the annular groove, and the annular arm is along the ring
The corresponding angle in shape slot arc sliding track is more than or equal to the maximum angle that the protrusion is relatively rotated with the groove.
In a wherein embodiment, the annular arm be it is multiple, the annular groove be it is multiple, multiple annular arms with
Central angle corresponding to multiple annular grooves is identical.
In a wherein embodiment, form sub-arm between the two adjacent annular grooves, the two adjacent annular arms it
Between form auxiliary tank, the sub-arm is rotatably contained in the auxiliary tank.
In a wherein embodiment, the width of the sub-arm is equal to the width of the annular arm, the auxiliary tank
Width is equal to the width of the annular groove.
In a wherein embodiment, the annular arm of the side of the protrusion is even number, the side of the groove
Annular groove be even number.
In a wherein embodiment, the annular groove is symmetrically set in the two sides of the groove, and the annular arm is symmetrically set
In the two sides of the protrusion.
In a wherein embodiment, the symmetry axis of the annular groove intersects with the symmetry axis of multiple annular arms.
In a wherein embodiment, the annular groove is centrosymmetric distribution about the center of the groove, multistage institute
Annular arm is stated to be centrosymmetric distribution about the center of the protrusion.
In a wherein embodiment, set between adjacent two curved block there are two interconnecting piece, the two interconnecting piece edges
The diametrically setting of the curved block.
A kind of endoscope, the draught line including bending section and in the bending section, the draught line are connected in series more
A curved block.
Above-mentioned curvature section of endoscope passes through ring under the premise of not influencing the normal use and bending angle of bending section
Stress between shape arm and annular groove mutual cooperation two curved blocks of dispersion, enhances the bonding strength between two curved blocks.It keeps away
Exempt from since bending torsion is excessive, protrusion is displaced out of groove, destroys the relationship that is rotatably connected between two curved blocks.
Also, since annular arm is more than or equal to the protrusion and institute along the corresponding angle in annular groove arc sliding track
The maximum angle for stating groove relative rotation avoids the opposite sliding between the length limitation protrusion of annular groove and groove, makes two
The maximum angle of the central axis of curved block can satisfy design needs.
Detailed description of the invention
Fig. 1 is the perspective view of the curvature section of endoscope of present embodiment；
Fig. 2 is the structural schematic diagram of another state of curvature section of endoscope shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the curvature section of endoscope of another embodiment；
Fig. 4 is the assembling stereogram of the interconnecting piece of endoscope shown in FIG. 1.
The reference numerals are as follows: 10, curved block；11 interconnecting pieces, 12, groove；13, raised；14, bearing surface.15,25,
Annular arm；251, first annular arm；252, the second annular arm；16,26, annular groove；261, first annular slot；262, the second annular
Slot；17, sub-arm, 18, auxiliary tank；19, punch line；191, dashpot.
Specific embodiment
Although the present invention can easily show as various forms of embodiments, it is shown in the accompanying drawings and in this theory
What be will be explained in bright book is only some of specific embodiments, while being understandable that this specification is construed as
The principle of the invention it is exemplary illustrated, and be not intended to limit the invention to it is illustrated herein as.
A feature pointed in this specification shall illustrate wherein the one of an embodiment of the invention as a result,
A feature, rather than imply that each embodiment of the invention must have illustrated feature.Further it is to be noted that be this
Specification describes many features.Although certain features can be combined to show possible system design, these
Feature can also be used for other combinations that explanation is not known.As a result, unless otherwise indicated, illustrated combination is not intended to limit
System.
In the embodiments shown in the drawings, the instruction (such as upper, lower, left, right, front and rear) in direction is for explaining this hair
The structure of bright various elements and movement are not absolute but opposite.When these elements are in position shown in the drawings,
These explanations are suitable.If the explanation of the position of these elements changes, the instruction in these directions is also correspondingly
Change.
Below in conjunction with the attached drawing of this specification, better embodiment of the invention is further described in detail.
Referring to Figure 1, the present invention proposes a kind of endoscope and curvature section of endoscope.A kind of endoscope include bending section and
Draught line in bending section.Draught line draws bending section, bends bending section, plays the purpose of traction bending section bending.
Multiple curved blocks are connected in series in bending section draught line.Bending section includes the curved block of multiple head and the tail connections.Curved block
Including being located at the stem curved block of endoscope distal end, positioned at the tail portion curved block of endoscope rear end and between stem and tail portion
Middle bent block.Stem curved block is similar to the structure of middle bent block to the structure of tail portion curved block, difference master
It is, the front end of stem curved block and the rear end of tail portion curved block are not provided with the interconnecting piece for connecting curved block, so that first
Portion's curved block is the curved block of front end, and tail portion curved block is the curved block of rearmost end.
It is hereafter illustrated by taking middle bent block as an example: being connected between two neighboring curved block 10 by interconnecting piece 11.And
And specifically, it is set between adjacent two curved block 10 there are two interconnecting piece 11, two interconnecting pieces 11 are diametrically set along curved block 10
It sets.That is, being rotatably connected between two neighboring curved block 10 by two realizations of interconnecting piece 11, and two interconnecting pieces 11 are located at together
On one straight line.
Specifically in the present embodiment, interconnecting piece 11 includes groove 12 and protrusion 13.Protrusion 13 is rotatably contained in groove
In 12.Groove 12 is adapted with the shape of protrusion 13, so that protrusion 13 can be limited and is contained in groove 12.And groove 12
Open end is shunk, and is detached from out of groove 12 to avoid protrusion 13.Specifically, groove 12 is circular groove 12, the shape of protrusion 13
For circle.Also, since protrusion 13 and groove 12 are located on the annular sidewall of curved block 10, then protrusion 13 all has with groove 12
Radian.Since the inner diameter size of two neighboring curved block 10 is identical, then the big small box of crooked radian of protrusion 13 and groove 12.
The interconnecting piece 11 of one of curved block 10 can be groove 12 and be also possible to protrusion 13, as long as connected to it another
The interconnecting piece 11 of one curved block 10 being capable of matched connection.Also, the two sides of curved block 10 are equipped with interconnecting piece 11,
It then may include four grooves 12 or four protrusions 13 or two grooves on the front/rear end of one of curved block 10
12 or two protrusions 13.For example, the then cooperation of adjacent flex block 10 is set when the interconnecting piece 11 of a curved block 10 is groove 12
There is protrusion 13, as long as two neighboring curved block 10 can be made to be cooperatively connected.
Specifically in the present embodiment, one end of curved block 10 is set there are two groove 12, and the other end sets that there are two protrusions 13.
Therefore, the shape of each curved block 10 is consistent shape.Multiple curved blocks 10 arrange manufacture according to unified mode, side
Just the realization of manufacturing process.
And two groove 12 be located along the same line, and two protrusions 13 are located along the same line, the straight line where two groove 12
It is mutually perpendicular to the straight line where two protrusions 13.When adjacent three curved blocks 10 relatively rotate, above-mentioned four groups recessed
Slot 12 and protrusion 13 cooperate, and adjacent three curved blocks 10 interconnecting piece 11 interconnected is located on four parallel lines.Therefore,
Above-mentioned bending section can be rotated on four direction, can the more freely accurately distortion of adjustment bending section, angle of rotation
Degree.Tool is suitable in the biggish cavity of internal diameter there are four the bending section of rotation direction, such as enteric cavity, gastral cavity etc..
It is appreciated that adjacent three curved blocks 10 interconnecting piece 11 interconnected is located on two parallel lines.It is then above-mentioned curved
Pars convoluta can be rotated in two directions, then the rotational angle of bending section more convenient can control.There are two rotations for tool
The bending section in direction is suitable in the lesser cavity of internal diameter, such as lung cavity.
The end face of curved block 10 is respectively equipped with bearing surface 14 in the two sides of interconnecting piece 11, when the two of two neighboring curved block 10
When a bearing surface 14 mutually supports, then two curved blocks 10 stop operating, then reach maximum between two curved blocks 10
Angle.Protrusion 13 rotates in groove 12, and when the bearing surface 14 of adjacent two curved block 10 abuts against, protrusion 13 stops turning
It is dynamic, reach the maximum angle that protrusion 13 is relatively rotated with groove 12.
Fig. 3 is referred to, specifically in the present embodiment, bearing surface 14 is arc-shaped concave.When bearing surface 14 is mutual two-by-two
When supporting, arc-shaped concave can make two-by-two bearing surface 14 keep larger area contact, enable two curved blocks 10 compared with
Stabilization is held in position.
Fig. 2 is referred to, the minimum point and interconnecting piece 11 of arc-shaped concave are opposite.When the bearing surface 14 of two curved blocks 10
When minimum point mutually supports, then maximum folder is formed between the central axis A-A and central axis B-B of two curved blocks 10 of jingle bell
Angle.The angular dimension of the maximum angle is to be designed to get according to the use demand of endoscope, for different model and not
With the endoscope of use demand, the maximum angle between the central axis of two neighboring curved block 10 be can also be different.
Also, 14 rounded corner of bearing surface.The surface that bending section can be improved in 14 one side of bearing surface after rounded corner is smooth
Degree avoids the sharp incline of bearing surface 14 from influencing the movement of endoscope.Also, when two bearing surfaces 14 mutually support
Wait, can be interfered between the bearing surface 14 after rounded corner to avoid between two bearing surfaces 14, guarantee two curved blocks 10 it
Between formation corner dimension it is consistent, improve the bending precision of endoscope.
Protrusion 13 relatively rotates in groove 12 and arrives maximum angle, and the bearing surface 14 of adjacent two curved block 10 abuts against, makes
It is in maximum bend angle between two curved blocks 10 and enters lockup state.
Specifically in the present embodiment, the two sides of protrusion 13 are respectively equipped with annular arm 15, and the two sides of groove 12 are respectively equipped with
Annular groove 16.The correspondence of annular arm 15 is contained in annular groove 16.Annular arm 15 is rotatably contained in annular groove 16.
It is connected between the curved block 10 of the bending section of present embodiment by interconnecting piece 11, and between two interconnecting pieces 11
It is rotatably connected except through protrusion 13 with groove 12, is also rotatably connected by annular arm 15 with annular groove 16, so as to
Enhance the bonding strength of interconnecting piece 11.When the bending of bending section stress, the stress between two curved blocks 10 can pass through
Be dispersed between protrusion 13 and groove 12, between annular arm 15 and annular groove 16, stress avoided to concentrate, make two curved blocks 10 it
Between 11 stress deformation of interconnecting piece, and influence the normal use of bending section.
Annular arm 15 and annular groove 16 can be one or more.Annular groove 16 is symmetrically set in the two sides of groove 12.Annular
Arm 15 is symmetrically set in the two sides of protrusion 13.Therefore, the arc length of the annular groove 16 of the left and right sides and its corresponding central angle are equal, left
The arc length of the annular arm 15 of right two sides and its corresponding central angle are equal.
Also, the symmetry axis of annular groove 16 is parallel with the symmetry axis of multiple annular arms 15, so that annular groove 16 and annular
The orthogonal connection of arm 15.Therefore, the angle between two symmetry axis is the angle relatively rotated between two curved blocks 10.
In other embodiments, the symmetry axis of annular groove 16 intersects with the symmetry axis of multiple annular arms 15.Then annular groove
16 is non-orthogonal with annular arm 15.Equally, when two curved blocks 10 relatively rotate, annular arm 15 can also be in annular groove 16
Interior relative rotation.
It is appreciated that the arc length of the annular groove 16 of the left and right sides and its corresponding central angle can also be unequal, correspondingly,
The arc length of the annular arm 15 of the left and right sides and its corresponding central angle can also be unequal.For example, referring to Fig. 3, the of side
The arc length of one annular groove 261 is smaller, and the arc length of the second annular groove 262 of the other side is larger.Correspondingly, the first annular arm of side
251 arc length is also smaller, and the arc length of the second annular arm 252 of the other side is also larger.First annular arm 251 is along first annular slot
261 rotations, the second annular arm 252 are rotated along the second annular groove 262.As long as the radian that annular arm 25 rotates in annular groove 26 is big
It is small consistent.It equally can achieve, the annular arm 25 of left and right sides smooth rotation in annular groove 26, and two sides annular arm 25
Relative rotation will not interfere.
Annular arm 15 is more than or equal to protrusion 13 opposite turn with groove 12 along the corresponding angle in 16 arc sliding track of annular groove
Dynamic maximum angle.When the bearing surface 14 positioned at the side of two curved blocks 10 mutually supports, then annular arm 15 is in annular
Sliding, also rotates to maximum angle in slot 16.Therefore, the maximum angle formed between the central axis of two curved blocks 10, annular groove
The maximum angle that will not influence between two curved blocks 10 of matching relationship between 16 and annular arm 15 guarantees that bending section can be suitable
Benefit reaches the requirement of bending angle, normal use.
Specifically in the present embodiment, annular arm 15 is equal to protrusion along the corresponding angle of 16 inner arc sliding trace of annular groove
13 maximum angles relatively rotated with groove 12.Then, the bearing surface 14 for the side for being located at two curved blocks 10 when two mutually supports
When, then annular arm 15 slides in annular groove 16, and the free end of annular arm 15 is also held with one end Xiang Ding of annular groove 16, ring
Shape arm 15 also rotates to the least significant end of arc sliding track in annular groove 16.Maximum angle is then between two curved blocks 10
When turned position limit, i.e., limit is mutually supported by two bearing surfaces 14, also by between annular arm 15 and annular groove 16
Mutually support and limited.
Specifically in the present embodiment, annular arm 15 is equal to 13 along the corresponding angle of 16 inner arc sliding trace of annular groove
Degree.The corresponding radian of each annular groove 16 is at least more than 13 degree.Then protrusion 13 and the maximum angle that groove 12 relatively rotates are 13
Degree.When the angle between the central axis A-A and central axis B-B of two curved blocks 10 is 13 degree, the freedom of annular arm 15
End is also also mutually supported with the end of annular groove 16 just.
Refer to Fig. 4, specifically in the present embodiment, annular arm 15 be it is multiple, annular groove 16 be it is multiple.Multiple annular arms
15 is identical as central angle corresponding to multiple annular grooves 16.Multiple annular arms 15 cooperate with multiple annular grooves 16 respectively, with
Increase the contact area between two curved blocks 10, can preferably disperse the active force between two curved blocks 10.Guarantee two
It is stably connected between curved block 10.
Sub-arm 17 is formed between two adjacent annular grooves 16, forms auxiliary tank 18 between two adjacent annular arms 15.Sub-arm
17 are rotatably contained in auxiliary tank 18.It is spaced between multiple annular arms 15 and is formed with auxiliary tank 18, between multiple annular grooves 16
Interval is formed with sub-arm 17, therefore by the interaction between sub-arm 17 and auxiliary tank 18, to two curved blocks 10 it
Between connection further increase qualified relation.
The width of sub-arm 17 is equal to the width of annular arm 15, and the width of auxiliary tank 18 is equal to the width of annular groove 16.Cause
This, while two curved blocks 10 relatively rotate, the inner sidewall between the lateral wall and auxiliary tank 18 of sub-arm 17 is also mutual
Contact, mutually further increases the contact area between two curved blocks 10, effectively dispersion distortional stress.
The annular arm 15 of the side of protrusion 13 is even number, and the annular groove 16 of the side of groove 12 is even number.Specifically exist
In present embodiment, the two sides of protrusion 13 are respectively equipped with two annular arms 15, and the two sides of groove 12 are respectively equipped with two annular grooves
16.It then in two neighboring curved block 10, is opened up in one of curved block 10 there are two annular groove 16, in another curved block 10
Auxiliary tank 18 there are two opening up is corresponded to, therefore, the similar intensity of two curved blocks 10 itself seemingly, will not generate larger difference, from
And guarantee the even intensity of bending section entirety, guarantee uniform force.
Punch line 19 is cut on the side wall of curved block 10.Punch line 19 can be one or more.By to punch line
The pressing part of 19 sides carries out punching press, and pressing part is made to be bent to form fairlead towards the inside of curved block 10.Then draught line can be with
Across fairlead, so that draught line is attached with bending section, and the effect that traction guidance is carried out to the bending of bending section is realized.
The position that opens up of punch line 19 is specifically as follows, and protrusion 13 is set to one end of curved block 10, then punch line 19 is opposite
The other end of curved block 10 is set in protrusion 13.Intensity of the reduction for opening up position bottom line of punch line 19 to curved block 10
It influences, guarantees the intensity of curved block 10 itself.
When punch line 19 is one, then punch line 19 is arranged close to the end face of curved block 10, then pressing part is located at
Between end face and punch line 19.Pressing part is carried out to be stamped and formed out fairlead towards the inside of curved block 10.
Also, curved block 10 can also be cut with dashpot 191 between punch line 19 and protrusion 13.The dashpot 191
Can effectively by the punching press stress to curved block 10 it is evenly dispersed fall, to punching press effect be isolated, to reduce stamping procedure pair
Deformation caused by curved block 10.
The length of dashpot 191 can be greater than the length of punch line 19, to disperse more punching press stress as far as possible.
In other embodiments, punch line 19 can be with a plurality of, then pressing part is located between two punch lines 19.To this
Pressing part carries out punching press, can equally be formed towards the fairlead in curved block 10.
Also, the length between a plurality of punch line 19 can be different, in order to process, the smaller intensity for influencing curved block 10
For the purpose of.
Specifically in the present embodiment, curvature section of endoscope is made by laser cutting technique.Therefore, curved to guarantee
Slickness between the smoothness of rotation between knee-piece 10 and each contact component uses the butt welding of polishing mode after laser cutting
The removal of slag (slag) is without hindrance when moving between two bent-segment blocks 10 to guarantee.
Also, to guarantee that protrusion 13 is smoothly slided in groove 12 and annular arm 15 smoothly slides in annular groove 16, then
Making the contact surface shiny surface of protrusion 13 with groove 12, annular arm 15 is the face that smoothly transits in the contact surface of annular groove 16, so that
Contact surface occurs relative to smoothly rotating two-by-two.
The endoscope and curvature section of endoscope of present embodiment have at least the following advantages relative to traditional endoscope:
Firstly, curvature section of endoscope 11 is not provided with rivet, connected between two neighboring curved block 10 by interconnecting piece 11,
Manufacturing process is simple, easy to accomplish.
Also, interconnecting piece 11 is by the effect that contacts with each other between annular arm 15 and annular groove 16, to disperse two curved blocks
Active force between 10 avoids protrusion 13 from being detached from out of groove 12.Therefore, though curvature section of endoscope do not use rivet, two
Bonding strength between a curved block 10 also keeps relatively strong, will not influence the normal use of endoscope.
Also, annular arm 15 is more than or equal to protrusion 13 and groove 12 along the corresponding angle of 16 inner arc sliding trace of annular groove
The maximum angle of relative rotation guarantees that two curved blocks 10 can be rotated according to design requirement.
Annular groove 16 is centrosymmetric distribution about the center of groove 12, and multi-stage annular arm 15 is in about the center of protrusion 13
Central symmetry distribution.Then there is the stress between protrusion 13 and groove 12 that can be centrosymmetric to be dispersed on annular arm 15, then should
The component that each annular arm 15 is subject to also is centrosymmetric distribution, is easy to cancel out each other, force balance reduces two curved blocks 10
Between stress, guarantee connection stability.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (10)
1. a kind of curvature section of endoscope, which is characterized in that including multiple head and the tail connection curved block, two neighboring curved block it
Between connected by interconnecting piece, and the interconnecting piece includes groove and protrusion, and the protrusion is rotatably contained in the groove, institute
The end face for stating curved block is respectively equipped with bearing surface in the two sides of the interconnecting piece, and the protrusion relatively rotates in the groove to be arrived
The bearing surface of maximum angle, adjacent two curved block abuts against, and makes to be in maximum bend angle simultaneously between two curved blocks
Into lockup state；
The two sides of the protrusion are respectively equipped with annular arm, and the two sides of the groove are respectively equipped with annular groove, and the annular arm is corresponding
It is contained in the annular groove, the annular arm is rotatably contained in the annular groove, and the annular arm is along the annular groove
The corresponding angle in arc sliding track is more than or equal to the maximum angle that the protrusion is relatively rotated with the groove.
2. curvature section of endoscope according to claim 1, which is characterized in that the annular arm is multiple, the annular
Slot be it is multiple, multiple annular arms are identical as central angle corresponding to multiple annular grooves.
3. curvature section of endoscope according to claim 2, which is characterized in that formed between the two adjacent annular grooves auxiliary
Arm is helped, forms auxiliary tank between the two adjacent annular arms, the sub-arm is rotatably contained in the auxiliary tank.
4. curvature section of endoscope according to claim 3, which is characterized in that the width of the sub-arm is equal to the ring
The width of shape arm, the width of the auxiliary tank are equal to the width of the annular groove.
5. curvature section of endoscope according to claim 2, which is characterized in that the annular arm of the side of the protrusion
For even number, the annular groove of the side of the groove is even number.
6. curvature section of endoscope according to claim 1, which is characterized in that the annular groove is symmetrically set in the groove
Two sides, the annular arm is symmetrically set in the two sides of the protrusion.
7. curvature section of endoscope according to claim 6, which is characterized in that the symmetry axis of the annular groove and multiple institutes
State the symmetry axis intersection of annular arm.
8. curvature section of endoscope according to claim 1, which is characterized in that the annular groove is about in the groove
The heart is centrosymmetric distribution, and the annular arm is centrosymmetric distribution about the center of the protrusion.
9. curvature section of endoscope according to claim 1, which is characterized in that be equipped with two between adjacent two curved block
A interconnecting piece, diametrically setting of two interconnecting pieces along the curved block.
10. a kind of endoscope, which is characterized in that including any bending section claim 1-9 and be set to the bending section
Multiple curved blocks are connected in series in interior draught line, the draught line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592766.8A CN109497914A (en) | 2018-12-25 | 2018-12-25 | Curvature section of endoscope and endoscope |
| PCT/CN2019/127631 WO2020135363A1 (en) | 2018-12-25 | 2019-12-23 | Bending part of endoscope, and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592766.8A CN109497914A (en) | 2018-12-25 | 2018-12-25 | Curvature section of endoscope and endoscope |
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| Publication Number | Publication Date |
|---|---|
| CN109497914A true CN109497914A (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592766.8A Pending CN109497914A (en) | 2018-12-25 | 2018-12-25 | Curvature section of endoscope and endoscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109998453A (en) * | 2019-05-10 | 2019-07-12 | 上海英诺伟医疗器械有限公司 | The bendable apparatus and endoscope of insert tube of endoscope |
| WO2020135363A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
| CN112503070A (en) * | 2020-11-06 | 2021-03-16 | 广州市天鹰精密工具有限公司 | Processing method of elastic connecting piece |
| EP3988006A1 (en) * | 2020-10-20 | 2022-04-27 | Ambu A/S | An endoscope |
-
2018
- 2018-12-25 CN CN201811592766.8A patent/CN109497914A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020135363A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳市先赞科技有限公司 | Bending part of endoscope, and endoscope |
| CN109998453A (en) * | 2019-05-10 | 2019-07-12 | 上海英诺伟医疗器械有限公司 | The bendable apparatus and endoscope of insert tube of endoscope |
| CN109998453B (en) * | 2019-05-10 | 2024-03-26 | 上海安清医疗器械有限公司 | Bendable device for endoscope insertion tube and endoscope |
| EP3988006A1 (en) * | 2020-10-20 | 2022-04-27 | Ambu A/S | An endoscope |
| US11678793B2 (en) | 2020-10-20 | 2023-06-20 | Ambu A/S | Endoscope |
| CN112503070A (en) * | 2020-11-06 | 2021-03-16 | 广州市天鹰精密工具有限公司 | Processing method of elastic connecting piece |
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