CN210902907U - A transmission structure, endoscope for endoscope - Google Patents

Abstract

The embodiment of the utility model belongs to the endoscope field, and relates to a transmission structure for an endoscope, which comprises two groups of traction components, a fixing part and a snake bone, wherein the traction components are provided with two groups, the front end of each traction component is fixedly connected with the snake bone on a plurality of connecting positions, and the two groups of traction components are opposite to the connecting positions of the snake bone and are matched with each other to drive the snake bone to change the curvature; the fixing piece is arranged at the rear end of the traction assembly and locks the two groups of traction assemblies at preset positions. The utility model provides a technical scheme can be fixed on a plurality of positions through setting up two sets of traction assembly respectively relative with the snake bone for prevent to pull the subassembly in the middle of the process of buckling and appear special-shaped part, adjust the turned angle of supporting endoscope accurately, and through two sets of regulating parts of mounting locking, can prevent in the middle of the use that the turned angle of endoscope appears changing.

Description

A transmission structure, endoscope for endoscope

Technical Field

The utility model relates to an endoscope field, more specifically relates to a transmission structure, endoscope for endoscope.

Background

The endoscope is a comprehensive instrument which combines the fields of traditional optics, modern electronics, mechanical structure software control and the like, and is used for penetrating into a pore canal and exploring the internal environment of the pore canal. The method is particularly suitable for being used as a medical instrument to detect human bodies and other use scenes in which the engineering industry needs to probe the internal environment of the pore canal.

Considering that the working end of the endoscope goes deep into the duct and is difficult to control, the traction assembly is usually controlled by controlling the traction assembly through the control end of the endoscope arranged at the outer end of the duct or at the outer side of the duct, or the position is controlled and adjusted by completely utilizing the flexibility of the endoscope pipeline.

In a control scheme to the endoscope, through setting up wire rope one end and being connected with endoscope work end, the other end is connected with the control end of endoscope, tighten up or relax the reinforcing bar through the rim plate, reach the effect of control endoscope bending, through this scheme control endoscope bending, the kink fractal form of endoscope is uncontrollable, easily because the reinforcing bar of unilateral is tensile causes the endoscope to appear special-shaped part at the kink in the middle of the bending process, can't adjust the endoscope tip orientation according to expectation, need provide one kind can the accurate control endoscope of shape of buckling.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve provides a transmission structure for endoscope, can the accurate control shape of buckling.

In order to solve the technical problem, an embodiment of the present invention provides a transmission structure for an endoscope, which adopts the following technical solutions:

a transmission structure for an endoscope comprises two groups of traction assemblies, a fixing piece and a snake bone, wherein the two groups of traction assemblies are arranged, the front end of each traction assembly is fixedly connected with the snake bone at a plurality of connecting positions, the two groups of traction assemblies are opposite to the connecting positions of the snake bone and mutually matched to drive the snake bone to change the curvature; the fixing piece is arranged at the rear end of the traction assembly and locks the two groups of traction assemblies at preset positions.

Furthermore, the snake bone comprises a plurality of first ring bodies and rivets, two adjacent first ring bodies are connected in a rotating mode through the rivets in the first direction and the second direction in sequence, and the first direction and the second direction are arranged in an intersecting mode.

Further, the snake bone further comprises a second ring body, and the second ring body and the first ring body are fixed through rivets.

Furthermore, the snake bone traction device further comprises a tail ring, wherein the tail ring is arranged at the rear end of the snake bone, and the two groups of traction assemblies penetrate through the tail ring and are respectively abutted against the tail ring in the diameter direction of the tail ring.

Furthermore, the traction assembly comprises a steel wire and a rack, the steel wire is arranged at the front end of the rack and fixedly connected with the snake bone at a plurality of connecting positions, and the rack is locked on the tooth positions of the two sets of racks opposite to each other by the fixing piece.

Furthermore, the fixing piece is arranged to be a gear, and gear teeth of the gear are respectively meshed with the gear positions on the two groups of racks.

In order to solve the above technical problem, an embodiment of the present invention further provides an endoscope, which adopts the following technical solution:

an endoscope comprises the transmission structure for the endoscope and a lens, wherein the lens is arranged at the front end of the snake bone.

Compared with the prior art, the embodiment of the utility model provides a mainly have following beneficial effect:

through setting up two sets of traction assembly respectively relative with the snake bone fixed on a plurality of positions, under the state of pulling traction assembly, the snake bone can level and smooth rotation, and through two sets of traction assembly traction snake bones and the bending shape of injecing traction assembly on relative each junction position in the middle of the rotation process, prevent traction assembly appearance dysmorphism part in the middle of the messenger's bending process, the turned angle of supporting endoscope is adjusted accurately, and through two sets of regulating parts of mounting locking, can prevent in the middle of the use, the turned angle of endoscope appears the change.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a transmission structure for an endoscope according to the present invention;

fig. 2 is a side view of a transmission structure for an endoscope according to the present invention;

fig. 3 is a side view of a transmission structure for an endoscope of the present invention, perpendicular to the view of fig. 2;

FIG. 4 is an enlarged view of a portion a of FIG. 1;

fig. 5 is a schematic diagram of the solution of S of the present invention;

fig. 6 is a flow chart of a transmission method according to the present invention.

Fig. 7 is a flowchart of step S300.

Reference numerals:

1-traction component, 2-fixing component, 3-snake bone, 31-first ring body, 311-concave position, 312-convex position, 32-second ring body, 321-concave position, 33-rivet and 4-tail ring.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "including" and "having," and any variations thereof, in the description and claims of the invention and the above description of the drawings are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

The utility model relates to an embodiment one for transmission structure of endoscope:

a transmission structure for an endoscope comprises two groups of traction components 1, a fixing piece 2 and a snake bone 3.

The traction components 1 are provided with two groups, the front end of the traction component 1 is fixedly connected with the snake bone 3 at a plurality of connecting positions, the two groups of traction components 1 are opposite to the connecting positions of the snake bone 3, the two groups of traction components are respectively arranged at two sides of the snake bone 3 and are fixedly connected with the adjusting component at the inner side of the adjusting component, and in the process that the traction components traction the snake bone 3 to deform, the two groups of traction components respectively limit the deflection angle and deformation of the snake bone 3 at two opposite positions in the snake bone 3 and are matched with each other to drive the snake bone 3 to change the curvature; the fixing member 2 is provided at the rear end of the traction assembly 1 and locks the two sets of traction assemblies 1 at a predetermined position.

Through pulling a set of traction piece, control two sets of traction pieces between produce relative displacement, the mutual skew of connection position production each other that corresponds under the drive of traction piece, snake bone 3 produces the turn on the whole to under the traction of relative two sets of traction pieces simultaneously, the connection position skew distance direction that corresponds each other is fixed, and the holistic rotation of snake bone 3 is steady, can prevent to appear special-shaped part in the middle of the rotation process.

Further, the snake bone 3 comprises a plurality of first ring bodies 31, the front end surface of each first ring body 31 is provided with a protrusion 312, and the rear end surface of each first ring body 31 is provided with a concave part 311; the end surface of the bulge 312 is an arc surface and is adapted to the shape of the concave part 311; the protrusions 312 and the concave portions 311 are vertically arranged in the diameter direction of the first ring body 31, and the plurality of first ring bodies 31 are sequentially connected through the protrusions 312 and the concave portions 311.

The two groups of first ring bodies 31 are rotatably connected through the protrusions 312 and the recesses 311, and can rotate mutually in a plane horizontal to the two groups of traction members or swing mutually in a direction vertical to the two groups of traction members under the driving of the traction members. The continuous three groups of first ring bodies 31 are connected in sequence through two groups of mutually perpendicular protrusions 312 and concave positions 311, and when the traction piece drives the adjusting assembly to rotate, the three groups of first ring bodies 31 adjust the rotating angle of the adjusting assembly respectively through rotating and swinging modes.

Further, the snake bone 3 further comprises a second ring body and a rivet 33, the rivet 33 is arranged at the front end of the second ring body, a recess 321 corresponding to the protrusion 312 is formed in the rear end face of the second ring body, the recess 321 is arranged in the axial direction of the rivet 33, the second ring body is arranged between the two groups of first ring bodies 31, and the rivet 33 and the recess 311 are connected with the first ring bodies 31 through the recess 321 and the protrusion 312 respectively.

The second ring body is connected with the first ring body 31 through the rivet 33, rotation is not generated between the rivet 33 and the first ring body, the traction piece is fixedly connected with the adjusting component on the rivet 33, the adjusting component is attached, and in the rotating process of the adjusting component, the limitation of the traction component 1 on the rotating direction and the rotating angle of the adjusting component is guaranteed. This scheme is favorable to strengthening the intensity of adjusting part to reinforcing traction assembly 1 is to adjusting part angular rotation's restriction, effectively prevents that the adjusting part from appearing special-shaped part in the middle of the adjustment process.

Furthermore, the snake bone traction device further comprises a tail ring 4, wherein the tail ring 4 is arranged at the rear end of the snake bone 3, and the two groups of traction assemblies 1 penetrate through the tail ring 4 and are respectively abutted against the tail ring 4 in the diameter direction of the tail ring 4. The tail ring 4 abuts against the pulling member and provides a fulcrum in a state where the pulling member is pulled. This scheme is favorable to alleviateing the pulling force that sets up on the first ring in adjustment assembly rear end, and the structure of snake bone 3 is more stable.

Furthermore, the traction assembly 1 comprises a steel wire and a rack, the steel wire is arranged at the front end of the rack and is fixedly connected with the snake bone 3 at a plurality of connecting positions, and the fixed part 2 locks the rack at the tooth positions opposite to the two groups of racks. The relative position between the two groups of traction components is adjusted by pulling the racks, and the two groups of tooth positions which are opposite to each other on the two groups of racks are locked, so that the rotation angle of the endoscope is accurately locked, the rotation angle of the endoscope is prevented from changing, and the angle variation of the endoscope is determined through the opposite tooth positions under the state that the rotation angle of the endoscope changes, the scheme is favorable for determining and locking the endoscope, and the kyoto change of the endoscope can be monitored,

further, the fixing piece 2 is provided with a gear, and gear teeth of the gear are meshed with gear positions on the two groups of racks respectively. The two racks are meshed with the gear in opposite directions, and the relative position of the two sets of racks is adjusted by rotating the gear to achieve the effect of quickly and accurately adjusting the traction piece.

In order to solve the above technical problem, an embodiment of the present invention further provides an endoscope, which adopts the following technical solution:

an endoscope comprises the transmission structure for the endoscope and a lens, wherein the lens is arranged at the front end of a snake bone 3. The aspiration direction of the lens is adjusted by adjusting the adjusting structure of the endoscope so as to adapt to different endoscopic scenes.

Embodiment of a method of driving according to the present invention

A method of driving, the method comprising:

step S100: an endoscope adjustment angle for adjusting the endoscope is determined.

Step S200: and determining two groups of first ring bodies or the rotation angle between the first ring body and the second ring body according to the adjustment angle of the endoscope.

The bending part is composed of a plurality of groups of first ring bodies and second ring bodies, each group bends for a certain angle, the whole angle needing bending is composed of the product of the angle of the first ring bodies and the angle of the second ring bodies and the group number, and the required group number is determined according to calculation. The integral adjusting angle of the adjusting assembly is determined through the adjusting angle of the endoscope, the angle between each group of the first ring bodies 31 is controlled simultaneously through the traction of the traction piece, and the rotating angle between each group of the first ring bodies 31 can be determined on average through the integral adjusting angle of the adjusting assembly on the premise that the shape between each group of the first ring bodies 31 and the specifications of the bulge 312 and the concave 311 are the same.

Step S300: and determining the moving distance of the steel wire according to the rotating angle between the two groups of first ring bodies or between the first ring bodies and the second ring bodies.

Step S400: the steel wires are moved to adjust the position relationship between the two groups of steel wires and locked.

The number of teeth of the gear and the rotation angle of the gear are determined by the moving distance of the steel wire, the width of the teeth of the gear and the gear module.

Further, please refer to fig. 7, wherein step S300 includes:

step S301: the moving distance of each connecting position which is pulled by the steel wire to move is determined according to the rotating angle between the two groups of the first ring bodies 31.

Step S302: and determining the overall moving distance of the steel wire according to the moving distance generated by pulling each connecting position by the steel wire and the group number of the rotating first ring and the rotating second ring.

The distance between the connecting position and the opposite connecting position is the radius R of the rotation of the first ring bodies 31, the rotation angle between each group of the first ring bodies 31 is α, and the moving distance S of the steel wire relative to the connecting point is determined by the following formula, wherein S is R × tan α.

Further, the indexing of the rack corresponds to the distance of movement of the wire required to produce a unit amount of rotational angle. This scheme is favorable to the step-by-step that provides with gear and rack control, turns into adjustment subassembly pivoted step-by-step, is favorable to cooperating actual demand, convenient adjustment subassembly's turned angle.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all embodiments, and that the appended drawings illustrate preferred embodiments of the present invention, but do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims (7)

1. A transmission structure for an endoscope, characterized in that: the snake bone traction device comprises two groups of traction components, a fixing part and snake bones, wherein the two groups of traction components are arranged, the front ends of the traction components are fixedly connected with the snake bones at a plurality of connecting positions, and the two groups of traction components are opposite to the connecting positions of the snake bones and are matched with each other to drive the snake bones to change the curvature; the fixing piece is arranged at the rear end of the traction assembly and locks the two groups of traction assemblies at preset positions.

2. A transmission structure for an endoscope, according to claim 1, characterized in that: the snake bone comprises a plurality of first ring bodies and rivets, wherein two adjacent first ring bodies are connected in a rotating mode through the rivets in a first direction and a second direction in sequence, and the first direction and the second direction are arranged in an intersecting mode.

3. A transmission structure for an endoscope, according to claim 2, characterized in that: the snake bone further comprises a second ring body and a rivet, and the second ring body and the first ring body are fixed through the rivet.

4. A transmission structure for an endoscope, according to claim 3, characterized in that: still include the tail ring, the tail ring sets up the rear end at the snake bone, and two sets of draw the subassembly to run through the tail ring to in the diameter direction of tail ring respectively with the tail ring butt.

5. A transmission structure for an endoscope according to any one of claims 1 to 4, characterized in that: the traction assembly comprises a steel wire and racks, the steel wire is arranged at the front ends of the racks and fixedly connected with the snake bones at a plurality of connecting positions, and the racks are locked by the fixing pieces at the tooth positions opposite to the two groups of racks.

6. A transmission structure for an endoscope, according to claim 5, characterized in that: the fixing piece is arranged as a gear, and gear teeth of the gear are respectively meshed with the gear positions on the two groups of racks.

7. An endoscope, characterized by: a transmission structure for an endoscope including any one of claims 1 to 6, further comprising a lens provided at a front end of the snake bone.

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