CN108125665A - The variable endoscope-use of bending radius is without rivet snake bone component - Google Patents
The variable endoscope-use of bending radius is without rivet snake bone component Download PDFInfo
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- CN108125665A CN108125665A CN201810017292.8A CN201810017292A CN108125665A CN 108125665 A CN108125665 A CN 108125665A CN 201810017292 A CN201810017292 A CN 201810017292A CN 108125665 A CN108125665 A CN 108125665A
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- 241000270295 Serpentes Species 0.000 title claims abstract description 56
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 55
- 238000005452 bending Methods 0.000 title claims abstract description 54
- 230000007306 turnover Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 10
- 238000003698 laser cutting Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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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
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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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
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Abstract
The invention discloses a kind of variable endoscope-use of bending radius without rivet snake bone component, including pitch circle after middle pitch circles after a sequentially connected preceding pitch circle, a preceding middle pitch circles of m, n and one；Two neighboring pitch circle is realized by the auxiliary connection of first connecting portion and the hinge arrangement of second connecting portion mutual cooperation composition and connected；The connecting pin of same pitch circle is symmetrically formed there are two connecting portion；Two connecting portions of same pitch circle form the centre of gyration, wherein a pitch circle can turn over an angle around the centre of gyration relative to the pitch circle being attached thereto；End face between two connecting portions is respectively formed concave surface in the both sides of connecting portion, so as to form angle between the end face of two neighboring pitch circle；The length of pitch circle is less than the length of rear middle pitch circle in before described.The present invention can minimize bending section appearance and size, while ensure that intracavity space maximizes.
Description
Technical field
The present invention relates to a kind of endoscope components, and in particular to a kind of variable endoscope-use of bending radius is without rivet snake bone
Component.
Background technology
Endoscope be it is a kind of be widely used general medical treatment and industrial detection instrument, bending section be pulled by steel wire rope it is more
The method of a snake Bones and joints being connected with each other realizes bending deflecting.The snake Bones and joints of comparative maturity generally have following three at present
A essential characteristic：First, snake Bones and joints are equipped with towing pad, for across haulage cable；Second, adjacent snake Bones and joints pass through
Closing-up connects to form hinge, so as to fulfill relative rotation；Third, snake Bones and joints have enough intracavity spaces, for leading to
Cross the built-in object such as pincers deferent, light guide bundles and electric wire.
But the manufacture and assembly technology due to closing-up connection are extremely complex, require height to the technology of worker, extremely
It is susceptible to riveting defect.Particularly with thin diameter endoscope (diameter is usually more than 1mm), if snake Bones and joints still use
The fixed connection method of rivet just seems extremely difficult.And it can also cause following two problems using rivet：First, riveting
Pin structure occupies the expensive real estate of snake Bones and joints inner cavity, and the insertion section diameter in endoscope is smaller, snake Bones and joints
Intracavity space is once occupied by rivet, cannot be that the built-in objects such as pincers deferent, light guide bundles and electric wire leave sufficient space；The
Two, rivet arrangement can increase the appearance and size of bending section, and the increase of the appearance and size of bending section will certainly influence inserting for endoscope
Enter performance.
Either in modern medicine diagnosis and treatment or in industrial detection, the endoscope demand of smaller diameter and bending radius
Urgently, be installed on the snake bone component of endoscope front end becomes the technological difficulties urgently captured naturally.And it is existing have rivet or
No rivet can not be such that diameter and bending radius meets the requirements simultaneously with pitch snake bone.
Invention content
The technical problems to be solved by the invention are to provide a kind of variable endoscope-use of bending radius without rivet snake bone group
Part, it can be such that diameter and bending radius meets the requirements simultaneously.
In order to solve the above technical problems, technology solution of the endoscope-use without rivet snake bone component that bending radius of the present invention is variable
Certainly scheme is：
Including pitch circle 4 after middle pitch circles 3 after sequentially connected one preceding pitch circle 1, a preceding middle pitch circles 2 of m, n and one；Phase
Adjacent two pitch circles are realized by the auxiliary connection of first connecting portion 6 and the hinge arrangement of the mutual cooperation composition of second connecting portion 7 and connected；
The first connecting portion 6 of a wherein pitch circle can be rotated relative to the second connecting portion 7 for the pitch circle being attached thereto；The company of same pitch circle
End is connect to be symmetrically formed there are two connecting portion；Two connecting portions of same pitch circle form the centre of gyration, wherein a pitch circle being capable of wraparound
Turn center and turn over an angle relative to the pitch circle being attached thereto, so as to which snake bone component be made to bend；Between two connecting portions
End face is respectively formed concave surface in the both sides of connecting portion, so as to form angle between the end face of two neighboring pitch circle；A wherein pitch circle
The maximum angle that can be turned over relative to the pitch circle being attached thereto forms the maximum bend angle of every section；Due to the both sides of auxiliary connection
Angle is respectively formed, therefore snake bone component can be upwardly or downwardly bent；It is saved during the length of pitch circle 2 is less than afterwards in before described
The length of circle 3；Form the first angle α between the upside end face of pitch circle 2 in before adjacent, it is adjacent after in pitch circle 3 upside end face it
Between form the second angle β；First angle α is more than the second angle β, so that bent angle alpha is more than in the maximum of pitch circle 2 in before adjacent
Bending angle β in the maximum of pitch circle 3 in after adjacent, so as to which snake bone component be made to realize the upper bending radius of variation；It is saved in before adjacent
Third angle ε is formed between the downside end face of circle 2, the 4th angle theta is formed between the downside end face of middle pitch circle 3 after adjacent；Third
Angle ε is more than the 4th angle theta, so that bending angle ε is more than the maximum of adjacent rear middle pitch circle 3 under the maximum of pitch circle 2 in before adjacent
Lower bending angle θ, so as to which snake bone component be made to realize the lower bending radius of variation.
The variable endoscope-use of bending radius of the present invention having technical effect that without rivet snake bone component：
It is connected admittedly with the cooperation realization of second connecting portion by first connecting portion respectively between adjacent each pitch circle of the present invention
Fixed, without using rivet, manufacture craft is simple.The hinge arrangement that the first connecting portion of the present invention is formed with second connecting portion
Auxiliary connection is not take up the intracavity space of snake bone, therefore can realize that diameter minimizes.
Since the length of middle pitch circle before the present invention is less than the length of rear middle pitch circle, while the maximum deflection angle of preceding middle pitch circle
Degree is more than the maximum bend angle of rear middle pitch circle, therefore the bending radius of snake bone component leading portion is less than the bending radius of back segment.This
Invention can realize that leading portion bending radius minimizes, and facilitate the insertion of snake bone component.Also, the present invention can realize bending radius
It is variable, the convenient control to front end bending direction.
Further, the first connecting portion 6 of the same connecting pin of same pitch circle is interspersed with second connecting portion 7.
The first connecting portion and second connecting portion of the same connecting pin of the pitch circle of the present invention are distributed in difference formula, can realize two sections
While relative rotation between circle, increase the bonding strength between snake joint, so as to reinforce the connection between two pitch circles.
Further, the center line direction N of the angle and the central axial direction W of snake bone component are perpendicular, with
When ensureing that snake bone component makees flexure operation, snake bone component is not in the situation of disconnection.
Further, the maximum bend angle of the preceding pitch circle 1 is identical with preceding middle pitch circle 2；The maximum of pitch circle 4 after described
Bending angle is identical with rear middle pitch circle 3.
Further, bending angle is m × α+n × β+(alpha+beta)/2 in the maximum of the snake bone component, maximum lower bending angle
It spends for m × ε+n × θ+(ε+θ)/2；
Wherein, m is the number of preceding middle pitch circle 2,
N is the number of rear middle pitch circle 3,
α is the angle between the upside end face of two neighboring preceding middle pitch circle 2,
β is the angle between the upside end face of two neighboring rear middle pitch circle 3,
ε is the angle between the downside end face of two neighboring preceding middle pitch circle 2,
θ is the angle between the downside end face of two neighboring rear middle pitch circle 3.
Further, the first connecting portion 6 includes protruding from the engagement disk 6-1 of pitch circle end face, engagement disk 6-1's
A connection ring engaging groove 6-2 is formed between side and pitch circle end face, the opposite side of engagement disk 6-1 is formed with a connection tail 6-3；
Connection ring engaging groove 6-2, engagement disk 6-1 and connection tail 6-3 round and smooth connections successively form the first connecting portion 6 of pitch circle.
Further, the second connecting portion 7 includes protruding from the arc-shaped engaging section 7-1 of pitch circle end face, arc-shaped to nibble
Conjunction portion 7-1 is matched with connection ring engaging groove 6-2, and the length of connection ring engaging groove 6-2 is more than arc-shaped engaging section 7-1；Circle
The interior turn of bilge of arc engaging section 7-1 forms a circular engaging lug engaging groove 7-2, and engaging lug engaging groove 7-2 is with engaging disk 6-1
It matches；The opposite side of engaging lug engaging groove 7-2 is formed with a connection tail engaging groove 7-3, and tail engaging groove 7-3 is with connecting tail for connection
6-3 is matched, and the length for connecting tail engaging groove 7-3 is more than connection tail 6-3；It is located therein the arc-shaped engaging section of a pitch circle
7-1 can be rotated using the center of circle of engaging lug engaging groove 7-2 as the centre of gyration along the connection ring engaging groove 6-2 of another pitch circle；It is located at
The engagement disk 6-1 of another pitch circle can be to engage the common center of circle of disk 6-1 and engaging lug engaging groove 7-2 as in revolution
The heart is rotated relative to the engaging lug engaging groove 7-2 of a wherein pitch circle；Connection tail 6-3 positioned at another pitch circle can be justified with engaging
The center of circle of piece 6-1 is the centre of gyration, is rotated along the connection tail engaging groove 7-3 of a wherein pitch circle；Arc-shaped engaging section 7-1, connection
Ear engaging groove 7-2 and connection tail engaging groove 7-3 round and smooth connections successively form the second connecting portion 7 of pitch circle.
The hinge arrangement that first connecting portion is formed with second connecting portion in the present invention, including three auxiliary sections, that is, connects
The cooperation of ring engaging groove and arc-shaped engaging section, cooperation and connection tail of the engagement disk with engaging lug engaging groove are with connecting tail
The cooperation of engaging groove, while being relatively rotated between two pitch circles are realized, it is ensured that the connection stablized between two pitch circles,
It avoids that discrepancy occurs in rotation process.
Further, the edge of the first connecting portion 6 forms the first chamfering；The edge of the second connecting portion 7 is formed
Second chamfering；The direction of first chamfering is opposite with the direction of the second chamfering.The present invention can be such that first connecting portion is connect with second
Portion is not in situation that snake Bones and joints misplace while flexure operation is ensured after being connected.
Further, Wirerope reeving slot 5 has been symmetrically formed it on each preceding middle pitch circle 2 and rear middle pitch circle 3.
Further, the forming method of the Wirerope reeving slot 5 is：The mode of laser cutting is first passed through on pitch circle simultaneously
Row form the first gap 8 and the second gap 9, and the position between the first gap 8 and the second gap 9 is then made by way of punching press
It is recessed inwardly, so as to form the wire rope handling slot 5 for fixed traction steel wire.The formation of the Wirerope reeving slot of the present invention does not need to weld
It connects, it is easy to process.
What the present invention can reach has the technical effect that：
Each pitch circle of the present invention is using whole cylindric stainless steel tube, by five axis laser cutting technique straight formings, into
Product smooth cut does not need to the processes such as second polishing deburring, and in connecting pin self-assembling formation hinge arrangement, it is no longer necessary to rivet
Structure, it is not required that welding, processing cost is low and greatly improves production efficiency.
The present invention can minimize bending section appearance and size, while ensure that intracavity space maximizes, convenient by clamping
The built-in objects such as pipe, light guide bundles and electric wire.
Description of the drawings
It should be understood by those skilled in the art that following explanation is only schematically to illustrate the principle of the present invention, the principle
It can apply in many ways, to realize many different alternative embodiments.These explanations are only used for showing the religion of the present invention
Lead the General Principle of content, it is not intended to limit and conceive in this disclosed invention.
It is incorporated in the present specification and forms the part of this specification accompanying drawing shows embodiment of the present invention, and
And the principle for explaining the present invention together with the detailed description of general description and drawings below above.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is schematic diagram of the variable endoscope-use of bending radius of the present invention without rivet snake bone component；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the enlarged diagram of the present invention；
Fig. 4 is the stereoscopic schematic diagram of the middle pitch circle of the present invention；
Fig. 5 is the close-up schematic view of the present invention；
Fig. 6 is the schematic diagram of the first connecting portion of the present invention；
Fig. 7 is the schematic diagram of the second connecting portion of the present invention；
Fig. 8 is the side view of the middle pitch circle of the present invention；
Fig. 9 is the schematic cross-section of the middle pitch circle of the present invention；
Figure 10 is the flexuosity schematic diagram of the present invention.
Reference sign in figure：
1 is preceding pitch circle, and 2 be preceding middle pitch circle,
3 be rear middle pitch circle, and 4 be rear pitch circle,
5 be Wirerope reeving slot, and 6 be first connecting portion,
7 be second connecting portion, and 8 be the first gap,
9 be the second gap,
6-1 is engagement disk, and 6-2 is connection ring engaging groove,
6-3 is connection tail,
7-1 is arc-shaped engaging section, and 7-2 is engaging lug engaging groove,
7-3 is connection tail engaging groove.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's all other embodiments obtained under the premise of without creative work, shall fall within the protection scope of the present invention.It removes
Non- other definition, technical term or scientific terminology used herein are should be in fields of the present invention with general technical ability
The ordinary meaning that personage is understood." first " used herein, " second " and similar word be not offered as any sequence,
Quantity or importance, and be used only to distinguish different component parts.The similar word such as " comprising " means before there is the word
The element in face either cover the element for appearing in the word presented hereinafter or object and its be equal by object, and is not excluded for other elements
Or object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but can be with
It is either directly or indirect including electrical connection."front", "rear" etc. is only used for representing relative position relation, works as quilt
After the absolute position of description object changes, then the relative position relation may also correspondingly change.
As shown in Figure 1, the variable endoscope-use of bending radius of the present invention is without rivet snake bone component, including sequentially connected one
Pitch circle 4 after pitch circles 2, n rear middle pitch circles 3 and one in before a preceding pitch circle 1, m are a；
As shown in figure 4, the cross section of each pitch circle is circle；Two neighboring pitch circle is connected by first connecting portion 6 and second
The auxiliary connection of the hinge arrangement of the mutual cooperation composition of socket part 7 realizes connection；
The first connecting portion 6 of a wherein pitch circle can be rotated relative to the second connecting portion 7 for the pitch circle being attached thereto；
The connecting pin of same pitch circle is symmetrically formed there are two connecting portion；Two connecting portions of same pitch circle are formed in revolution
The heart a, wherein pitch circle can turn over an angle around the centre of gyration relative to the pitch circle being attached thereto, so as to which snake bone component occurs
Bending；
The first connecting portion 6 of the same connecting pin of same pitch circle is interspersed with second connecting portion 7, so as to realize
While relative rotation between two pitch circles, the connection between two pitch circles is further reinforced.
End face between two connecting portions is respectively formed concave surface in the both sides of connecting portion, so that the end face of two neighboring pitch circle
Between form angle；The maximum that a wherein pitch circle forms every section relative to the maximum angle that the pitch circle being attached thereto can turn over is curved
Bent angle；Since the both sides of auxiliary connection are respectively formed angle, snake bone component can be upwardly or downwardly bent；
As shown in figure 5, the center line direction N of the angle and the central axial direction W of snake bone component are perpendicular, to protect
When card snake bone component makees flexure operation, snake bone component is not in the situation of disconnection.
As shown in figure 3, the axial length of preceding middle pitch circle 2 is less than the axial length of rear middle pitch circle 3；Pitch circle 2 in before adjacent
The first angle α is formed between the end face of upside, the second angle β is formed between the upside end face of middle pitch circle 3 after adjacent；First angle α
More than the second angle β, so as to be bent in maximum of the bent angle alpha more than adjacent rear middle pitch circle 3 in the maximum of pitch circle 2 in before adjacent
Angle beta, so as to which snake bone component be made to realize the bending radius of variation；
Third angle ε is formed in before adjacent between the downside end face of pitch circle 2, after adjacent between the downside end face of middle pitch circle 3
Form the 4th angle theta；Third angle ε is more than the 4th angle theta, so that bending angle ε is more than under the maximum of pitch circle 2 in before adjacent
Bending angle θ under the maximum of pitch circle 3 in after adjacent；
First angle α can be equal with third angle ε, can not also wait；
Second angle β can be equal with the 4th angle theta, can not also wait；
The maximum bend angle of preceding pitch circle 1 is identical with preceding middle pitch circle 2, the maximum bend angle of rear pitch circle 4 and rear middle pitch circle 3
It is identical；
Bending angle is m × α+n × β+(alpha+beta)/2 in the maximum of the snake bone component of the present invention, and the lower bending angle of maximum is m
×ε+n×θ+(ε+θ)/2。
Since the length of middle pitch circle 2 before the present invention is less than the length of rear middle pitch circle 3, while the maximum of preceding middle pitch circle 2 is curved
Bent angle [alpha] is more than the maximum bend angle β of rear middle pitch circle 3, therefore the radius of curvature R 1 of snake bone component leading portion is less than the curved of back segment
Bilge radius R2, as shown in Figure 10.
As shown in Figure 1, the rear end of preceding pitch circle 1 is formed as connecting pin, there are one first connecting portions 6 and one second connection
Portion 7, first connecting portion 6 and second connecting portion 7 are evenly distributed with along the circumferential direction of pitch circle so that first connecting portion 6 and second connecting portion 7 into
180 ° of angles；End face between first connecting portion 6 and second connecting portion 7 forms concave surface, so that the end of preceding pitch circle 1 and preceding middle pitch circle 2
The first angle α is formed between face.
As shown in Figure 1, first connecting portion 6 and a second connecting portion 7 there are one the front end formation of preceding middle pitch circle 2, in preceding
There are one second connecting portion 7 and a first connecting portions 6 for the rear end formation of pitch circle 2；And first connecting portion 6 and second connecting portion 7
It is interspersed, i.e., the first connecting portion 6 of front end and the second connecting portion 7 of rear end are located at the homonymy of preceding middle pitch circle 2；
The front end of the preceding middle pitch circle 2 is connected by second connecting portion 7 with the first connecting portion 6 of preceding pitch circle 1, is passed through simultaneously
First connecting portion 6 is connected with the second connecting portion 7 of preceding pitch circle 1；The rear end of the preceding middle pitch circle 2 passes through first connecting portion 6 and phase
The second connecting portion 7 of the front end of middle pitch circle 2 is connected before neighbour, while passes through second connecting portion 7 and the front end of adjacent preceding middle pitch circle 2
First connecting portion 6 be connected.
The structure of middle pitch circle 3 is identical with preceding middle pitch circle 2 afterwards.
As shown in Figure 1, the front end of rear pitch circle 4 is formed as connecting pin, there are one first connecting portions 6 and one second connection
Portion 7, first connecting portion 6 and second connecting portion 7 are evenly distributed with along the circumferential direction of pitch circle.
As shown in fig. 6, first connecting portion 6 includes protruding from the engagement disk 6-1 of pitch circle end face, the one of disk 6-1 is engaged
A connection ring engaging groove 6-2 is formed between side and pitch circle end face, the opposite side of engagement disk 6-1 is formed with a connection tail 6-3；
Connection ring engaging groove 6-2, engagement disk 6-1 and connection tail 6-3 round and smooth connections successively form the first connection of pitch circle
Portion 6；The edge of first connecting portion 6 forms the first chamfering through laser cutting；
As shown in fig. 7, second connecting portion 7 includes protruding from the arc-shaped engaging section 7-1 of pitch circle end face, arc-shaped engaging section
7-1 is matched with connection ring engaging groove 6-2, and the length of connection ring engaging groove 6-2 is more than arc-shaped engaging section 7-1；It is arc-shaped
The interior turn of bilge of engaging section 7-1 forms a circular engaging lug engaging groove 7-2, and engaging lug engaging groove 7-2 matches with engaging disk 6-1
It closes；The opposite side of engaging lug engaging groove 7-2 is formed with a connection tail engaging groove 7-3, and tail engaging groove 7-3 is with connecting tail 6-3 for connection
It matches, and the length for connecting tail engaging groove 7-3 is more than connection tail 6-3；
Be located therein a pitch circle arc-shaped engaging section 7-1 can using the center of circle of engaging lug engaging groove 7-2 as the centre of gyration,
It is rotated along the connection ring engaging groove 6-2 of another pitch circle；
Engagement disk 6-1 positioned at another pitch circle can be to engage the common circle of disk 6-1 and engaging lug engaging groove 7-2
The heart is the centre of gyration, is rotated relative to the engaging lug engaging groove 7-2 of a wherein pitch circle；
Connection tail 6-3 positioned at another pitch circle can be to engage the center of circle of disk 6-1 as the centre of gyration, along a wherein pitch circle
Connection tail engaging groove 7-3 rotation；
Arc-shaped engaging section 7-1, engaging lug engaging groove 7-2 and connection tail engaging groove 7-3 round and smooth connections successively, form pitch circle
Second connecting portion 7；The edge of second connecting portion 7 forms the second chamfering through laser cutting；
The direction of the direction of first chamfering and the second chamfering is on the contrary, so that first connecting portion 6 coordinates with second connecting portion 7
Be not in the situation of snake Bones and joints dislocation (i.e. pitch circle and pitch circle dislocation) while flexure operation is ensured after connection.Such as connect
The outer diameter in pitch circle portion is bigger than internal diameter residing for lug 6, and size difference is d, then in the outer diameter ratio in pitch circle portion residing for corresponding connection ring 7
Diameter is small, and size difference is also d.
The hinge arrangement that first connecting portion 6 is formed with second connecting portion 7 in the present invention, including three auxiliary sections, that is, connects
Connect the cooperation of ring engaging groove 6-2 and arc-shaped engaging section 7-1, the cooperation of engagement disk 6-1 and engaging lug engaging groove 7-2 and
Cooperations of the tail 6-3 with connecting tail engaging groove 7-3 is connected, while being relatively rotated between two pitch circles are realized, it is ensured that two
The connection stablized between a pitch circle, avoids that discrepancy occurs in rotation process.
As shown in Fig. 2, Wirerope reeving slot 5 has been symmetrically formed on pitch circle 2 and rear middle pitch circle 3 in before each.During manufacture, first
The mode that laser cutting is first passed through on preceding middle pitch circle 2 and rear middle pitch circle 3 forms the first gap 8 and the second gap 9 side by side, then
The position between the first gap 8 and the second gap 9 is made to be recessed inwardly by way of punching press, so as to be formed for fixed traction steel
The wire rope handling slot 5 of silk, as shown in Figure 8, Figure 9.The formation of the Wirerope reeving slot 5 of the present invention does not need to weld, easy to process.
The present invention is suitable for medical flexible endoscope and industrial flexible endoscope, is particularly suitable for thin diameter endoscope.
Obviously, those skilled in the art can carry out various changes and deformation to the present invention, without departing from the present invention's
Spirit and scope.If in this way, the present invention these modifications belong within the scope of the claims in the present invention and its equivalent technology,
Then the present invention is also intended to comprising including these changes and deformation.
Claims (10)
1. a kind of variable endoscope-use of bending radius is without rivet snake bone component, it is characterised in that：Including sequentially connected one
Pitch circle (4) after pitch circles (2), n rear middle pitch circles (3) and one in before preceding pitch circle (1), m are a；Two neighboring pitch circle passes through first
The auxiliary connection of connecting portion (6) and the hinge arrangement of second connecting portion (7) mutual cooperation composition, which is realized, to be connected；The of a wherein pitch circle
One connecting portion (6) can be rotated relative to the second connecting portion (7) for the pitch circle being attached thereto；
The connecting pin of same pitch circle is symmetrically formed there are two connecting portion；Two connecting portions of same pitch circle form the centre of gyration,
In a pitch circle can turn over an angle relative to the pitch circle being attached thereto around the centre of gyration, so as to which snake bone component be made to bend；
End face between two connecting portions is respectively formed concave surface in the both sides of connecting portion, so that between the end face of two neighboring pitch circle
Form angle；A wherein pitch circle forms the maximum deflection angle of every section relative to the maximum angle that the pitch circle being attached thereto can turn over
Degree；
The length of pitch circle (2) is less than the length of rear middle pitch circle (3) in before described；In before adjacent between the upside end face of pitch circle (2)
The first angle (α) is formed, the second angle (β) is formed between the upside end face of middle pitch circle (3) after adjacent；First angle (α) is more than
Second angle (β), so that in before adjacent in the maximum of pitch circle (2) in maximum of the bending angle (α) more than adjacent rear middle pitch circle (3)
Bending angle (β), so as to which snake bone component be made to realize the upper bending radius of variation；In before adjacent between the downside end face of pitch circle (2)
Third angle (ε) is formed, the 4th angle (θ) is formed between the downside end face of middle pitch circle (3) after adjacent；Third angle (ε) is more than
4th angle (θ), so that curved under maximum of the bending angle (ε) more than adjacent rear middle pitch circle 3 under the maximum of pitch circle (2) in before adjacent
Bent angle (θ), so as to which snake bone component be made to realize the lower bending radius of variation.
2. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is same
The first connecting portion (6) of the same connecting pin of pitch circle is interspersed with second connecting portion (7).
3. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
The center line direction (N) of angle and the central axial direction (W) of snake bone component are perpendicular.
4. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
The maximum bend angle of preceding pitch circle (1) is identical with preceding middle pitch circle (2)；The maximum bend angle of pitch circle (4) and rear middle section after described
It is identical to enclose (3).
5. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
Bending angle is m × α+n × β+(alpha+beta)/2 in the maximum of snake bone component, the lower bending angle of maximum for m × ε+n × θ+(ε+θ)/
2；
Wherein, m is the number of preceding middle pitch circle (2),
N is the number of rear middle pitch circle (3),
α is the angle between the upside end face of two neighboring preceding middle pitch circle (2),
β is the angle between the upside end face of two neighboring rear middle pitch circle (3),
ε is the angle between the downside end face of two neighboring preceding middle pitch circle (2),
θ is the angle between the downside end face of two neighboring rear middle pitch circle (3).
6. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
Engagement disk (6-1) of the first connecting portion (6) including protruding from pitch circle end face, side and the pitch circle end face of engagement disk (6-1)
Between form a connection ring engaging groove (6-2), the opposite side of engagement disk (6-1) is formed with a connection tail (6-3)；Connection ring is nibbled
Slot (6-2), engagement disk (6-1) and connection tail (6-3) round and smooth connection successively are closed, forms the first connecting portion (6) of pitch circle.
7. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
Arc-shaped engaging section (7-1) of the second connecting portion (7) including protruding from pitch circle end face, arc-shaped engaging section (7-1) and connection ring
Engaging groove (6-2) matches, and the length of connection ring engaging groove (6-2) is more than arc-shaped engaging section (7-1)；Arc-shaped engaging section
The interior turn of bilge of (7-1) forms a circular engaging lug engaging groove (7-2), and engaging lug engaging groove (7-2) is with engaging disk (6-1) phase
Cooperation；The opposite side of engaging lug engaging groove (7-2) is formed with a connection tail engaging groove (7-3), and connection tail engaging groove (7-3) is with connecting
It connects tail (6-3) to match, and the length for connecting tail engaging groove (7-3) is more than connection tail (6-3)；
Be located therein a pitch circle arc-shaped engaging section (7-1) can using the center of circle of engaging lug engaging groove (7-2) as the centre of gyration,
It is rotated along the connection ring engaging groove (6-2) of another pitch circle；Engagement disk (6-1) positioned at another pitch circle can be to engage disk
The common center of circle of (6-1) and engaging lug engaging groove (7-2) is the centre of gyration, relative to the engaging lug engaging groove of a wherein pitch circle
(7-2) is rotated；Connection tail (6-3) positioned at another pitch circle can be to engage the center of circle of disk (6-1) as the centre of gyration, along wherein
Connection tail engaging groove (7-3) rotation of one pitch circle；
Arc-shaped engaging section (7-1), engaging lug engaging groove (7-2) and connection tail engaging groove (7-3) round and smooth connection successively, composition section
The second connecting portion (7) of circle.
8. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
The edge of first connecting portion (6) forms the first chamfering；The edge of the second connecting portion (7) forms the second chamfering；First chamfering
Direction it is opposite with the direction of the second chamfering.
9. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：It is described
In before each Wirerope reeving slot (5) has been symmetrically formed on pitch circle (2) and rear middle pitch circle (3).
10. the variable endoscope-use of bending radius according to claim 1 is without rivet snake bone component, it is characterised in that：Institute
The forming method for stating Wirerope reeving slot (5) is：The mode that laser cutting is first passed through on pitch circle forms the first gap (8) side by side
With the second gap (9), the position between the first gap (8) and the second gap (9) is then made to be recessed inwardly by way of punching press,
So as to form the wire rope handling slot (5) for fixed traction steel wire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017292.8A CN108125665B (en) | 2018-01-09 | 2018-01-09 | Rivet-free snake bone component with changeable bending radius for endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017292.8A CN108125665B (en) | 2018-01-09 | 2018-01-09 | Rivet-free snake bone component with changeable bending radius for endoscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108125665A true CN108125665A (en) | 2018-06-08 |
| CN108125665B CN108125665B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810017292.8A Active CN108125665B (en) | 2018-01-09 | 2018-01-09 | Rivet-free snake bone component with changeable bending radius for endoscope |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109497915A (en) * | 2018-12-25 | 2019-03-22 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN109512369A (en) * | 2018-12-25 | 2019-03-26 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN109645937A (en) * | 2018-12-25 | 2019-04-19 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN110018562A (en) * | 2019-04-03 | 2019-07-16 | 岱川医疗(深圳)有限责任公司 | Curvature section of endoscope and endoscope |
| WO2019218726A1 (en) * | 2018-05-17 | 2019-11-21 | 上海安清医疗器械有限公司 | Endoscope |
| CN111700578A (en) * | 2020-07-13 | 2020-09-25 | 上海熠达光电科技有限公司 | Endoscope bending part |
| CN112022060A (en) * | 2020-09-18 | 2020-12-04 | 鑫圻科技股份有限公司 | Snake bone structure and endoscope device |
| CN112294237A (en) * | 2020-10-23 | 2021-02-02 | 苏州新光维医疗科技有限公司 | Snake bone connecting structure for endoscope |
| CN113576378A (en) * | 2021-08-11 | 2021-11-02 | 岱川医疗(深圳)有限责任公司 | Bending structure part of endoscope |
| WO2022148280A1 (en) * | 2021-01-07 | 2022-07-14 | 陈雍睿 | Bending tube for endoscope |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE687988A (en) * | 1965-10-08 | 1967-03-16 | ||
| CN201469245U (en) * | 2009-08-14 | 2010-05-19 | 上海澳华光电内窥镜有限公司 | Endoscope snake bone |
| CN204618174U (en) * | 2015-04-28 | 2015-09-09 | 常州延顺光电科技有限公司 | The middle pitch circle structure of snake bone |
| CN107334449A (en) * | 2017-07-11 | 2017-11-10 | 上海成运医疗器械股份有限公司 | Endoscope-use is without rivet snake bone component |
| CN107468201A (en) * | 2017-07-21 | 2017-12-15 | 安徽航天生物科技股份有限公司 | A kind of snake bone of endoscope |
| CN108113628A (en) * | 2018-01-09 | 2018-06-05 | 浙江成运医疗器械有限公司 | Without rivet snake bone component |
| CN208464025U (en) * | 2018-01-09 | 2019-02-05 | 浙江成运医疗器械有限公司 | Without rivet snake bone component |
| CN208677340U (en) * | 2018-01-09 | 2019-04-02 | 浙江成运医疗器械有限公司 | The variable endoscope-use of bending radius is without rivet snake bone component |
-
2018
- 2018-01-09 CN CN201810017292.8A patent/CN108125665B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE687988A (en) * | 1965-10-08 | 1967-03-16 | ||
| CN201469245U (en) * | 2009-08-14 | 2010-05-19 | 上海澳华光电内窥镜有限公司 | Endoscope snake bone |
| CN204618174U (en) * | 2015-04-28 | 2015-09-09 | 常州延顺光电科技有限公司 | The middle pitch circle structure of snake bone |
| CN107334449A (en) * | 2017-07-11 | 2017-11-10 | 上海成运医疗器械股份有限公司 | Endoscope-use is without rivet snake bone component |
| CN107468201A (en) * | 2017-07-21 | 2017-12-15 | 安徽航天生物科技股份有限公司 | A kind of snake bone of endoscope |
| CN108113628A (en) * | 2018-01-09 | 2018-06-05 | 浙江成运医疗器械有限公司 | Without rivet snake bone component |
| CN208464025U (en) * | 2018-01-09 | 2019-02-05 | 浙江成运医疗器械有限公司 | Without rivet snake bone component |
| CN208677340U (en) * | 2018-01-09 | 2019-04-02 | 浙江成运医疗器械有限公司 | The variable endoscope-use of bending radius is without rivet snake bone component |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019218726A1 (en) * | 2018-05-17 | 2019-11-21 | 上海安清医疗器械有限公司 | Endoscope |
| US11596296B2 (en) | 2018-05-17 | 2023-03-07 | Anqing Medical Co., Ltd | Endoscope |
| CN109512369B (en) * | 2018-12-25 | 2023-12-05 | 深圳市先赞科技有限公司 | Bending part of endoscope and endoscope |
| CN109512369A (en) * | 2018-12-25 | 2019-03-26 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN109645937A (en) * | 2018-12-25 | 2019-04-19 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN109497915B (en) * | 2018-12-25 | 2024-03-22 | 深圳市先赞科技有限公司 | Bending part of endoscope and endoscope |
| CN109645937B (en) * | 2018-12-25 | 2024-03-22 | 深圳市先赞科技有限公司 | Bending part of endoscope and endoscope |
| CN109497915A (en) * | 2018-12-25 | 2019-03-22 | 深圳市先赞科技有限公司 | Curvature section of endoscope and endoscope |
| CN110018562A (en) * | 2019-04-03 | 2019-07-16 | 岱川医疗(深圳)有限责任公司 | Curvature section of endoscope and endoscope |
| CN111700578A (en) * | 2020-07-13 | 2020-09-25 | 上海熠达光电科技有限公司 | Endoscope bending part |
| CN112022060A (en) * | 2020-09-18 | 2020-12-04 | 鑫圻科技股份有限公司 | Snake bone structure and endoscope device |
| CN112294237A (en) * | 2020-10-23 | 2021-02-02 | 苏州新光维医疗科技有限公司 | Snake bone connecting structure for endoscope |
| WO2022148280A1 (en) * | 2021-01-07 | 2022-07-14 | 陈雍睿 | Bending tube for endoscope |
| WO2023016494A1 (en) * | 2021-08-11 | 2023-02-16 | 岱川医疗(深圳)有限责任公司 | Bending structue portion of endoscope |
| CN113576378A (en) * | 2021-08-11 | 2021-11-02 | 岱川医疗(深圳)有限责任公司 | Bending structure part of endoscope |
| CN113576378B (en) * | 2021-08-11 | 2024-07-05 | 岱川医疗(深圳)有限责任公司 | Bending structure of endoscope |
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