CN210228080U

CN210228080U - Pull wire adjustment mechanism and endoscope

Info

Publication number: CN210228080U
Application number: CN201920766401.6U
Authority: CN
Inventors: Xiuwei Yuan; 袁秀伟; Liangwei Cao; 曹良伟; Hongwen Yuan; 袁洪文; Zhengchun Luo; 罗正春; Daoyuan Song; 宋道远
Original assignee: Hangzhou Weisibo Medical Technology Co ltd
Current assignee: Hangzhou Weisibo Medical Technology Co ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-04-03
Anticipated expiration: 2029-05-24

Abstract

The utility model provides a pull wire adjustment mechanism and endoscope relates to medical equipment's technical field, this pull wire adjustment mechanism, include: the novel rotary table comprises a rotary table, a locking bolt, a connecting column, an upper traction line and a lower traction line, wherein a peripheral groove is formed in the rotary table, and the upper traction line and the lower traction line are wound and fixed on a fixing piece of the rotary table along the peripheral groove from the upper side and the lower side of the rotary table respectively. The utility model provides a pull wire and pull wire rotation down can be taken in the rotation of pull wire adjustment mechanism's carousel, go up the pull wire and fix on the mounting with lower pull wire along the all round grooves on the carousel, can realize going up the pull wire and rewinding on the carousel with lower pull wire when the carousel is rotatory, this pull wire adjustment mechanism can simpler assembly, go up the pull wire and pass through the mounting with lower pull wire one end and fix on the carousel, compare with prior art, the structure is simpler, easier assembly, thus can also improve assembly efficiency.

Description

Pull wire adjustment mechanism and endoscope

Technical Field

The utility model belongs to the technical field of medical equipment's technique and specifically relates to a pull wire adjustment mechanism and endoscope is related to.

Background

The endoscope is a detection instrument integrating traditional optics, ergonomics, precision machinery, modern electronics, mathematics and software into a whole.

An endoscope mainly includes an insertion portion that can be inserted into a human body and generally provided with a bending end having an image pickup element tip and capable of controlling the direction of the tip and a bending tube capable of bending as needed; in order to make the front end capable of shooting according to the needs of the user, the bending of the bent end is generally controlled by a steel wire, so that the shooting direction of the front end is changed; but the steel wire of endoscope wheel hub department is now adjusted and fixed knot constructs, and it is extremely inconvenient that the steel wire is convoluteed in narrow and small space, makes the steel wire easily receive the damage, and the assembly is complicated, and the proficiency requires highly, and assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pull wire adjustment mechanism and endoscope to solve the endoscope steel wire and easily harm in narrow and small space recoil, the fixed mode of steel wire is complicated, leads to the assembly complicated, technical problem that assembly efficiency is low.

Based on the above-mentioned purpose, the utility model provides a pair of pull wire adjustment mechanism, include: the device comprises a rotary table, a locking bolt, a connecting column, an upper traction wire and a lower traction wire.

The rotary table is provided with a peripheral groove, and the upper traction wire and the lower traction wire are respectively wound along the peripheral groove from the upper side and the lower side of the rotary table and are fixed on a fixing piece of the rotary table;

the locking bolt is inserted into the through hole from the other side face of the rotary table and connected with the fixing column.

Further, the through hole comprises a lower through hole for accommodating the fixing column and an upper through hole for the locking bolt to pass through;

the cross section of the lower through hole is non-circular, and the cross section of the lower through hole can cover the cross section of the upper through hole.

Furthermore, a fixing hole is formed in the rotary disc, and a fixing piece used for fixing the upper traction line and the lower traction line is arranged on the fixing hole.

Further, the fixing piece comprises an upper mounting cap, a middle column and a lower threaded column which are sequentially arranged;

and a support table which enables an upper hole for accommodating the middle column and a lower hole for screwing the lower threaded column to be formed in the fixing hole is arranged in the fixing hole.

Further, the length of the center pillar is greater than the depth of the upper hole, and the center pillar enables a fixing area for fixing the upper traction line and the lower traction line on the center pillar to be formed between the upper mounting cap and the turntable.

Furthermore, the turntable is provided with a notch, and the upper traction wire and the lower traction wire penetrate out of the notch and are connected with the fixing piece.

Further, still include the regulating arm, the regulating arm with the spliced pole is kept away from the one end of fixed column and is connected.

Furthermore, a mounting hole is formed in the connecting column, and a mounting screw on the adjusting arm is in threaded connection with the mounting hole.

Furthermore, a rotating column is arranged at one end of the connecting column, and the fixing column is arranged at one end of the rotating column; the rotating column is sleeved with an outer sleeve.

The utility model also provides an endoscope, including the aforesaid pull wire adjustment mechanism.

The utility model provides a pull wire and pull wire rotation down can be taken in the rotation of pull wire adjustment mechanism's carousel, go up the pull wire and fix on the mounting with lower pull wire along the all around groove on the carousel, can realize going up the pull wire and winding around on the carousel with lower pull wire when the carousel is rotatory.

Compare in prior art's pull wire adjustment mechanism, go up the pull wire and have the backrush of great diameter with lower pull wire, can reduce the damage of going up pull wire and pull wire down, improve the life of pull wire and pull wire down, avoided in the use endoscope process, because go up the pull wire or pull wire down goes out the problem, and influence the use.

And this pull wire adjustment mechanism can simpler assembly, goes up pull wire and pull wire one end down and passes through the mounting to be fixed on the carousel, compares with prior art, and the structure is simpler, and assembly efficiency has been improved to easier assembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a traction wire adjusting mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle configuration of the pull-wire adjustment mechanism of FIG. 1;

FIG. 3 is a schematic view of yet another angle of the pull-wire adjustment mechanism of FIG. 1;

FIG. 4 is a schematic longitudinal cross-sectional view of the pull-wire adjustment mechanism of FIG. 1;

FIG. 5 is a schematic view of the pull wire adjustment mechanism of FIG. 1 applied to an endoscope;

fig. 6 is a partially enlarged view of the endoscope shown in fig. 5.

Icon: 100-a turntable; 200-upper traction wire; 300-lower traction wire; 400-locking the bolt; 500-a fixture; 600-notch; 700-week groove; 800-fixing holes; 900-upper through holes; 110-lower via; 120-mounting a cap; 130-a center pillar; 140-lower threaded post; 150-a support table; 160-upper hole; 170-lower hole; 180-connecting column; 190-spin columns; 210-fixed columns; 220-outer sleeve; 230-adjusting the arm.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the utility model provides a pull wire adjustment mechanism, include: a turntable 100, a locking bolt 400, a connecting column 180, an upper traction wire 200 and a lower traction wire 300.

The turntable 100 is provided with a circumferential groove 700, and the upper traction wire 200 and the lower traction wire 300 are respectively wound along the circumferential groove 700 from the upper side and the lower side of the turntable 100 and are fixed on the fixing member 500 of the turntable 100.

A fixing post 210 is arranged at one end of the connecting post 180, the fixing post 210 is inserted into a through hole arranged in the center of the rotary table 100 from one side surface of the rotary table 100, and the locking bolt 400 is inserted into the through hole from the other side surface of the rotary table 100 and connected with the fixing post 210.

In some embodiments, the upper traction wire 200 and the lower traction wire 300 may be steel wires, and the upper traction wire 200 and the lower traction wire 300 are fixed at the same point along the circumferential groove 700 of the turntable 100, in one case, the upper traction wire 200 increases the winding on the turntable 100 and the lower traction wire 300 decreases the winding on the turntable 100 when the turntable 100 rotates.

Alternatively, the upper pulling wire 200 may be wound around the turntable 100 in a reduced amount, and the lower pulling wire 300 may be wound around the turntable 100 in an increased amount, so that the orientation of the distal end of the endoscope insertion portion may be changed, and the orientation of the lens may be adjusted as necessary.

The upper traction wire 200 and the lower traction wire 300 can effectively reduce the abrasion of the traction wire along the winding of the turntable 100 with larger diameter, and the steel wire is wound back in a larger space, so that the operation is more convenient.

As shown in fig. 2, based on the above embodiment, further, the through holes include a lower through hole 110 for receiving the fixing post 210 and an upper through hole 900 for passing the locking bolt 400;

the cross section of the lower through hole 110 is non-circular, and the cross section of the lower through hole 110 can cover the cross section of the upper through hole 900.

When the orientation of the front end of the endoscope needs to be adjusted, the connecting column 180 needs to be rotated, and the connecting column 180 drives the fixing column 210 to rotate, so that the turntable 100 rotates. The fixing post 210 is generally rectangular and inserted into the rectangular lower through hole 110, and the locking bolt 400 is inserted into the upper through hole 900 from the other side of the rotary table 100 and is screwed on the fixing post 210, so that the rotary table 100 is fixed on the connecting post 180 and can rotate synchronously with the connecting post 180.

The cross-section of the fixing post 210 may have other shapes, in which case the screw hole of the locking bolt 400 can be formed in the fixing post 210.

The area of the cross section of the lower through hole 110 is larger than that of the cross section of the upper through hole 900, when the fixing column 210 is inserted into the lower through hole 110, the fixing column 210 cannot be inserted into the upper through hole 900, and after the locking bolt 400 is inserted into the upper through hole 900, the locking bolt can be screwed on the fixing column 210, so that the connection between the turntable 100 and the connecting column 180 is realized.

And the nut of the locking bolt 400 is larger than the upper through hole 900, so that the turntable 100 can be firmly fixed on the fixed column 210, the turntable 100 can rotate along with the fixed column 210, the rotation is avoided, and the stability of the image shot by the endoscope is ensured.

Based on the above embodiments, further, the turntable 100 is provided with a fixing hole 800, and a fixing member 500 for fixing the upper traction wire 200 and the lower traction wire 300 is provided on the fixing hole 800.

The fixing hole 800 is formed in the turntable 100, the fixing member 500 is fixed in the fixing hole 800, the upper traction wire 200 and the lower traction wire 300 are fixed on the fixing member 500, the upper traction wire 200 and the lower traction wire 300 are fixed, when the turntable 100 rotates, the upper traction wire 200 and the lower traction wire 300 are wound along with the upper traction wire 200 and the lower traction wire 300, and the upper traction wire 200 and the lower traction wire 300 are matched with each other along with the forward and reverse rotation of the turntable 100 to adjust the orientation of the front end of the endoscope.

As shown in fig. 4, based on the above embodiment, further, the fixing member 500 includes an upper mounting cap 120, a middle pillar 130 and a lower threaded pillar 140, which are sequentially arranged;

the fixing hole 800 is provided therein with a support stand 150 formed in the fixing hole 800 for receiving the upper hole 160 of the center pillar 130 and for screwing the lower hole 170 of the lower screw pillar 140.

In some embodiments, the upper mounting cap 120 of the fixing member 500 has a diameter greater than that of the upper hole 160 of the fixing hole 800, and when the fixing member 500 is inserted into the fixing hole 800, the lower threaded post 140 is threadedly engaged in the lower hole 170, and the center post 130 is stopped by the support base 150, preventing the lower threaded post 140 from further moving downward, so that the upper mounting cap 120 is spaced apart from the turntable 100, and the upper traction wire 200 and the lower traction wire 300 can be fixed to the center post 130.

Based on the above embodiment, further, the length of the center pillar 130 is greater than the depth of the upper hole 160, and the center pillar 130 forms a fixing area between the upper mounting cap 120 and the turntable 100 for fixing the upper traction wire 200 and the lower traction wire 300 on the center pillar 130.

The length of the center pillar 130 is greater than the depth of the upper hole 160, and the upper end of the center pillar 130 does not enter the upper hole 160 when the lower end of the center pillar 130 contacts the support table 150, thereby forming a fixing region between the surface of the turntable 100 and the upper mounting cap 120 for winding and fixing the upper traction wire 200 and the lower traction wire 300.

The distance between the surface of the turntable 100 and the upper mounting cap 120 is slightly greater than the diameter of the upper traction wire 200, and after the upper traction wire 200 and the lower traction wire 300 are fixed on the fixing member 500, the upper traction wire 200 and the lower traction wire 300 can be more firmly fixed with the fixing member 500 by welding; the stationary member 500, the turntable 100 and the upper and lower traction members are all made of weldable material.

Compare in prior art, through setting up the part at each pull wire end, through the fixed mode of part card in tangent plane department, improved the efficiency of assembly greatly, make the assembly easier.

The upper traction wire 200 and the lower traction wire 300 can be fixed on the fixing member 500, and can be further fixed by welding, so that the assembly difficulty is reduced and the assembly efficiency is improved under the condition of ensuring firmness.

Based on the above embodiments, further, the turntable 100 has a notch 600, and the upper traction wire 200 and the lower traction wire 300 are threaded out of the notch 600 and connected to the fixing member 500.

The circumferential groove 700 is formed at the turntable 100 with a circumference, and a notch 600 is formed at one position of the turntable 100, and the upper traction wire 200 and the lower traction wire 300 can be coupled with the fixing member 500 through the notch 600 from the circumferential groove 700.

The welding region is formed near the fastening hole 800, and after the fastening member 500 is coupled to the upper traction wire 200 and the lower traction wire 300, the fastening member 500, the upper traction wire 200, and the lower traction wire 300 may be welded by welding, and the upper traction wire 200 and the lower traction wire 300 may be welded near the notch 600.

Based on the above embodiment, further, the adjusting device further includes an adjusting arm 230, and the adjusting arm 230 is connected to one end of the connecting column 180 away from the fixing column 210.

Adjusting arm 230 one end is connected with spliced pole 180, spliced pole 180 roughly becomes the L type with adjusting arm 230, through rotatory adjusting arm 230, thereby make spliced pole 180 rotatory, the cross section of fixed column 210 is non-circular, the cross section of lower through-hole 110 also is non-circular, fixed column 210 matches with lower through-hole 110, when spliced pole 180 drives fixed column 210 rotatory, fixed column 210 can drive carousel 100 that has lower through-hole 110 and rotate, thereby make carousel 100 rotatory, realize the regulation to the orientation of the front end of endoscope promptly, satisfy the different demands of making a video recording of operator.

The image pickup device at the distal end of the endoscope can be oriented in different directions, the distal end of the endoscope can be moved in the vertical direction by moving the turntable 100, and the distal end of the endoscope can be moved in the left-right direction when the insertion portion is rotated, and the endoscope can be moved in accordance with the movement.

On the basis of the above embodiment, further, the connection column 180 is provided with a mounting hole, and the mounting screw of the adjustment arm 230 is screwed with the mounting hole.

The connecting column 180 is provided with a mounting hole, a threaded hole is formed in the mounting hole, the adjusting arm 230 is provided with a through hole, and a mounting screw penetrates through the through hole from one end of the adjusting arm 230 and is in threaded connection with the mounting hole in the connecting column 180, so that the adjusting arm 230 is firmly mounted on the connecting column 180.

As shown in fig. 5 and fig. 6, based on the above embodiment, further, a rotating column 190 is disposed at one end of the connecting column 180, and a fixed column 210 is disposed at one end of the rotating column 190; an outer sleeve 220 is sleeved on the rotary column 190.

The connecting column 180 is provided with a section of a rotating column 190, one end of the rotating column 190 is connected with the connecting column 180, the other end of the rotating column 190 is connected with a fixed column 210, and the diameter of the rotating column 190 is smaller than that of the connecting column 180 and larger than that of the fixed column 210.

The outer sleeve 220 can be arranged on the rotary column 190, the outer sleeve 220 is sleeved on the rotary column 190, the upper end of the outer sleeve 220 is abutted against the connecting column 180, and the outer sleeve 220 can be in contact with other parts, so that the connecting column 180 rotates to reduce friction with other parts, and the flexibility and the hand feeling of the adjusting arm 230 are improved.

The endoscope using the pull wire adjusting mechanism can meet the requirement of the endoscope on the function, the service life of a steel wire is prolonged, the winding is wide, the operation is convenient, the abrasion of the upper pull wire 200 and the lower pull wire 300 is reduced, and the service life of the endoscope is prolonged.

The rest of the endoscope is prior art, only changing the way the upper pull wire 200 and the lower pull wire 300 are adjusted.

The utility model provides a pull wire 200 and pull wire 300 rotation down can be taken in pull wire adjustment mechanism's carousel 100's rotation, go up pull wire 200 and pull wire 300 down and fix on mounting 500 along all grooves 700 on carousel 100, can realize going up pull wire 200 and pull wire 300 backwind on carousel 100 down when carousel 100 is rotatory.

In the endoscope of the same volume, the pull wire adjustment mechanism has the winding that has great diameter and can reduce the damage of going up pull wire 200 and pull wire 300 down compared with prior art, improves the life of going up pull wire 200 and pull wire 300 down, has avoided in the use endoscope process because go up pull wire 200 or pull wire 300 down go out the problem, and influence the use.

And this pull wire adjustment mechanism can simpler assembly, goes up pull wire 200 and pull wire 300 one end down and passes through the mounting to be fixed on the carousel, compares with prior art, and the structure is simpler, and easier assembly can also improve assembly efficiency like this, and pull wire adjustment mechanism is more reliable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A pull-wire adjustment mechanism, comprising: a rotary table, a locking bolt, a connecting column, an upper traction wire and a lower traction wire,

2. The traction wire adjustment mechanism according to claim 1, wherein the through-hole comprises a lower through-hole for receiving a fixing post and an upper through-hole for passing the locking bolt;

3. The wire adjusting mechanism as claimed in claim 1, wherein a fixing hole is provided on the turntable, and the fixing member for fixing the upper and lower traction wires is provided on the fixing hole.

4. The pull-wire adjustment mechanism according to claim 3, wherein the fixing member comprises an upper mounting cap, a middle post and a lower threaded post arranged in this order;

5. The wire adjustment mechanism of claim 4, wherein the center post has a length greater than a depth of the upper hole, the center post forming a securing area between the upper mounting cap and the turntable for securing the upper and lower wires to the center post.

6. The pull-wire adjustment mechanism of claim 3, wherein the turntable has a notch, and the upper pull wire and the lower pull wire extend out of the notch and are coupled to the mount.

7. The pull-wire adjustment mechanism of claim 3, further comprising an adjustment arm coupled to an end of the attachment post distal from the fixed post.

8. The pull-wire adjustment mechanism according to claim 7, wherein the attachment post has a mounting hole therein, and a mounting screw on the adjustment arm is threadedly engaged with the mounting hole.

9. The pull-wire adjustment mechanism according to claim 1, wherein the connection post is provided with a rotation post at one end thereof, and the fixed post is provided at one end thereof; an outer sleeve is sleeved on the rotating column.

10. An endoscope comprising the pull-wire adjustment mechanism of any one of claims 1-9.