Endoscope

Abstract

The utility model relates to the technical field of medical instruments, and discloses an endoscope which comprises a driving assembly, a probe, a guide joint, a first spring sheath, a second spring sheath, a first pull wire and a second pull wire. The driving assembly comprises a shell, a first linkage part, a first adjusting part and a second adjusting part, the first linkage part comprises a first sliding part, a second sliding part and a first transmission part, and the first transmission part can drive the first sliding part and the second sliding part to do constant-speed reverse movement; the first adjusting part can be close to or away from the first sliding part, and the second adjusting part can be close to or away from the second sliding part; the probe is connected to the guide joint; the spring sheaths are mounted between the guide joints and the corresponding adjusting parts; the pull wires are arranged between the guide joints and the corresponding sliding parts. The traction effect of the sliding piece on the guide joint through the traction line is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, and it is an endoscope. BACKGROUND

[0002] At present, endoscope has been widely used in medical industry, under normal circumstances, endoscope is used to stretch into the human body and carries out the shooting to the specified part, so that the doctor can observe the situation of the specified part in the patient's body in real time.

[0003] In the related art, the endoscope generally comprises driving assembly, spring sheath, guide joint and probe which are arranged in sequence and adjacent to each other, the driving assembly comprises sliding member and at least two traction lines, the two traction lines are arranged between the guide joint and the driving assembly and are provided in the spring sheath, the sliding member can adjust the movement of the traction line in the spring sheath, so that the lengths of the two traction lines in the guide joint are different, so that the guide joint is bent and drives the probe to rotate.

[0004] However, the traction line has certain ductility, after multiple uses, the traction line can be elongated due to pulling, so that the part of the traction line between the spring sheath and the sliding member can be bent, or in the process of assembling the endoscope, the lengths of the parts of the two traction lines between the spring sheath and the sliding member are inconsistent, so that the part of at least one traction line between the spring sheath and the sliding member can be bent.

[0005] When the part of at least one traction line between the spring sheath and the sliding member is bent, the moving distance of the sliding member is greater than the moving distance of the traction line in the spring sheath, and the traction effect of the sliding member on the guide joint through the traction line is poor. UTILITY MODEL CONTENTS

[0006] The utility model embodiment aims at providing an endoscope, to solve the technical problem that in the prior art, when the part of at least one traction line between the spring sheath and the sliding member is bent, the moving distance of the sliding member is greater than the moving distance of the traction line in the spring sheath, and the traction effect of the sliding member on the guide joint through the traction line is poor.

[0007] The utility model embodiment solves its technical problem by adopting the following technical scheme:

[0008] A sliding member is provided, comprising:

[0009] A driving assembly comprises a housing, a first linkage component, a first adjusting component and a second adjusting component, the first linkage component comprises a first transmission member and first and second sliding members slidingly connected to the housing, the first transmission member can drive the first and second sliding members to move at a same speed in opposite directions; the first and second adjusting components are movably installed on the housing, the first adjusting component can move towards or away from the first sliding member, and the second adjusting component can move towards or away from the second sliding member;

[0010] A probe comprising a camera;

[0011] A guide joint capable of bending, the probe being connected to one end of the guide joint;

[0012] A first spring sheath, one end of the first spring sheath being fixedly installed on the first adjusting component, and the other opposite end of the first spring sheath being connected to the guide joint;

[0013] A second spring sheath, one end of the second spring sheath being fixedly installed on the second adjusting component, and the other opposite end of the second spring sheath being connected to the guide joint;

[0014] A first traction line, one end of the first traction line being connected to the first sliding member, the first traction line penetrating through the first adjusting component and the first spring sheath, and the other opposite end of the first traction line extending into and being connected to the guide joint;

[0015] A second traction line, one end of the second traction line being connected to the second sliding member, the second traction line penetrating through the second adjusting component and the second spring sheath, and the other opposite end of the second traction line extending into and being connected to the guide joint.

[0016] In some embodiments, the first transmission member comprises a gear, the first transmission member being rotationally connected to the housing, the first and second sliding members are both racks, the first sliding member is located on one side of the first transmission member, the second sliding member is located on the other opposite side of the first transmission member, and the first and second sliding members are both engaged with the first transmission member.

[0017] In some embodiments, the first sliding member is provided with a first guide through hole penetrating through the first sliding member, a central axis of the first guide through hole is parallel to a movement track of the first sliding member, one end of the first traction line is connected to one end of the first sliding member away from the first adjusting component, and the first traction line penetrates through the first guide through hole, the first adjusting component and the first spring sheath;

[0018] The second sliding member is provided with a second guide through hole, the second guide through hole penetrates the second sliding member, the central axis of the second guide through hole is parallel to the movement track of the second sliding member, one end of the second traction line is connected to the end of the second sliding member away from the second adjusting component, and the second traction line penetrates the second guide through hole, the second adjusting component and the second spring sheath.

[0019] In some embodiments, the first sliding member comprises a first limiting part, the first limiting part is fixed to the end of the first sliding member away from the first adjusting component, and one end of the first traction line is connected to the first limiting part.

[0020] The second sliding member comprises a second limiting part, the second limiting part is fixed to the end of the second sliding member away from the second adjusting component, and one end of the second traction line is connected to the second limiting part.

[0021] In some embodiments, the shell is provided with a mounting cavity, a first threaded hole and a second threaded hole, one end of the first threaded hole is communicated with the mounting cavity, the other opposite end of the first threaded hole penetrates the outer surface of the shell, one end of the second threaded hole is communicated with the mounting cavity, and the other opposite end of the second threaded hole penetrates the outer surface of the shell; the first linkage component is mounted in the mounting cavity, the first adjusting component is threadedly connected in the first threaded hole, the first adjusting component partially protrudes outside the shell, the second adjusting component is threadedly connected in the second threaded hole, and the second adjusting component partially protrudes outside the shell.

[0022] In some embodiments, the central axis of the first threaded hole is collinear with the connecting line between the first sliding member and the first adjusting component, the end of the first adjusting component away from the first sliding member is provided with a first accommodating cavity, and one end of the first spring sheath is mounted in the first accommodating cavity; the central axis of the second threaded hole is collinear with the connecting line between the second sliding member and the second adjusting component, the end of the second adjusting component away from the second sliding member is provided with a second accommodating cavity, and one end of the second spring sheath is mounted in the second accommodating cavity.

[0023] In some embodiments, the first adjusting component comprises a first limiting step, and the first limiting step is provided with a first accommodating through hole; the first accommodating cavity is communicated with the mounting cavity through the first accommodating through hole, one end of the first spring sheath mounted in the first accommodating cavity abuts against the first limiting step, and the first traction line penetrates the first accommodating through hole and the first spring sheath in sequence.

[0024] The second adjusting component comprises a second limiting step, and the second limiting step is provided with a second accommodating through hole; the second accommodating cavity is communicated with the mounting cavity through the second accommodating through hole; one end of the second spring sheath installed in the second accommodating cavity is abutted against the second limiting step; and the second traction line is sequentially arranged in the second accommodating through hole and the second spring sheath.

[0025] In some embodiments, the shell comprises a first metal nut and a second metal nut, the first metal nut is arranged between the cavity wall of the mounting cavity and the outer surface of the shell, and the first threaded hole is arranged in the first metal nut; the second metal nut is arranged between the cavity wall of the mounting cavity and the outer surface of the shell, and the second threaded hole is arranged in the second metal nut.

[0026] In some embodiments, the endoscope further comprises a third spring sheath, a fourth spring sheath, a third traction line and a fourth traction line, and the direction of the third traction line to the fourth traction line is perpendicular to the direction of the first traction line to the second traction line.

[0027] The driving assembly further comprises a second linkage component, a third adjusting component and a fourth adjusting component, the direction of the third adjusting component to the fourth adjusting component is perpendicular to the direction of the first adjusting component to the second adjusting component; the second linkage component comprises a second transmission member, a third sliding member and a fourth sliding member which are slidably connected to the shell, and the second transmission member can drive the third sliding member and the fourth sliding member to move at the same speed in opposite directions.

[0028] One end of the third spring sheath is installed in the third adjusting component, and the other opposite end of the third spring sheath is connected to the guide joint.

[0029] One end of the fourth spring sheath is installed in the fourth adjusting component, and the other opposite end of the fourth spring sheath is connected to the guide joint.

[0030] One end of the third traction line is connected to the third sliding member, the third traction line is arranged in the third adjusting component and the third spring sheath, and the other opposite end of the third traction line is inserted into and connected to the guide joint.

[0031] One end of the fourth traction line is connected to the fourth sliding member, the fourth traction line is arranged in the fourth adjusting component and the fourth spring sheath, and the other opposite end of the fourth traction line is inserted into and connected to the guide joint.

[0032] In some embodiments, the endoscope further comprises a flexible guide tube, one end of the flexible guide tube is connected to the end of the guide joint away from the probe, the other opposite end of the flexible guide tube is towards the driving assembly, the first spring sheath and the second spring sheath are both arranged in the flexible guide tube.

[0033] Compared with the prior art, when the user needs to adjust the angle of the probe, the user drives the first sliding member and the second sliding member to make equal-speed reverse motion through the first transmission member, the first sliding member is close to the first spring sheath, the second sliding member is away from the second spring sheath, the second sliding member pulls the second traction line, so that the part of the second traction line in the guide joint is shortened, the end of the second traction line connected to the guide joint drives the guide joint to bend, the first traction line is pulled in the process of the guide joint bending, so that the part of the first traction line in the guide joint is lengthened, and then the part of the first traction line between the first sliding member and the first spring sheath can also be straightened.

[0034] The first traction line and the second traction line both have a certain ductility, the first traction line may be stretched after working for a period of time, or the length of the part of the first traction line between the first sliding member and the first spring sheath is greater than the length of the part of the second traction line between the second sliding member and the second spring sheath after the endoscope is assembled; the part of the first traction line between the first sliding member and the first spring sheath is bent, so that when the guide joint is driven to rotate by the first transmission member and the first traction line, the amplitude of the rotation of the guide joint becomes smaller. At this time, the first adjusting component is moved towards the direction away from the first sliding member, so that the distance between the end of the first spring sheath and the first sliding member becomes larger, the inner surface of the first spring sheath abuts against the outer surface of the first traction line, the first spring sheath pulls the first traction line, so that the first traction line between the end of the first spring sheath and the first sliding member can be straightened again, at the same time, the space for the first spring sheath to be installed between the first adjusting component and the guide joint becomes smaller, and the bending degree of the first spring sheath increases; when the first sliding member is moved away from the first adjusting component to pull the first traction line, the state of the first spring sheath remains unchanged, and the first spring sheath plays a guiding role on the first traction line, so that the moving distance of the first sliding member is equal to the distance of the first traction line extending out of the first spring sheath, so as to improve the traction effect when the guide joint is pulled by the first sliding member and the first traction line.

[0035] The second traction line can also be stretched after working for a period of time, or the length of the part of the second traction line between the second sliding member and the second spring sheath is greater than the length of the part of the first traction line between the first sliding member and the first spring sheath after the endoscope is assembled; the part of the second traction line between the second sliding member and the second spring sheath is bent, so that the rotating range of the guide joint is smaller when the second driving member drives the guide joint to pull the second traction line. At this time, the second adjusting member is moved in the direction away from the second sliding member, so that the distance between the end of the second spring sheath and the second sliding member is increased, the inner surface of the second spring sheath abuts against the outer surface of the second traction line, the second spring sheath pulls the second traction line, so that the second traction line between the end of the second spring sheath and the second sliding member can be straightened again, and the space for installing the second spring sheath between the second adjusting member and the guide joint is smaller, so that the bending degree of the second spring sheath is increased; when the second sliding member moves to pull the second traction line, the state of the second spring sheath remains unchanged, and the second spring sheath plays a guiding role on the second traction line, so that the moving distance of the second sliding member is equal to the distance of the second traction line extending out of the second spring sheath, so as to improve the traction effect when the second sliding member drives the guide joint to pull the second traction line. BRIEF DESCRIPTION OF DRAWINGS

[0036] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the present embodiments, wherein elements having the same reference number designates like elements throughout the various figures, and wherein the figures are not necessarily to scale, unless otherwise specifically mentioned.

[0037] Figure 1 is a perspective view of an endoscope in one embodiment of the present utility model;

[0038] Figure 2 is Figure 1 is a sectional view of a driving assembly of the endoscope in the embodiment;

[0039] Figure 3 is Figure 1 is a perspective view of the driving assembly of the endoscope in the embodiment, with part of the shell removed;

[0040] Figure 4 is Figure 1 is a sectional view of the first linkage member of the endoscope in the embodiment;

[0041] Figure 5 is Figure 1 is a sectional view of the first adjusting member and the second adjusting member of the endoscope in the embodiment.

[0042] Reference Signs:

[0043] 100, endoscope; 10, driving assembly; 12, shell; 122, first metal nut; 124, second metal nut; 1201, mounting cavity; 1202, first threaded hole; 1204, second threaded hole; 14, first linkage component; 142, first transmission member; 144, first sliding member; 1442, first guide through hole; 1444, first limiting portion; 146, second sliding member; 1462, second guide through hole; 1464, second limiting portion; 16, first adjusting component; 162, first limiting step; 1622, first accommodation through hole; 1602, first accommodating cavity; 18, second adjusting component; 182, second limiting step; 1822, second accommodation through hole; 1802, second accommodating cavity; 20, probe; 30, guide joint; 40, first spring sheath; 50, second spring sheath; 60, first traction line; 70, second traction line; 80, flexible guide tube. DETAILED DESCRIPTION

[0044] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as being "connected" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" and the like used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0045] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0046] The endoscope 100 provided by the embodiments of the present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3The utility model discloses an endoscope 100 in one embodiment, including drive assembly 10, probe 20, guide joint 30, first spring sheath 40, second spring sheath 50, first traction line 60 and second traction line 70, drive assembly 10 includes shell 12, first linkage component 14, first adjusting component 16 and second adjusting component 18, and first linkage component 14 includes first transmission member 142 and the first sliding member 144 of sliding connection in shell 12, second sliding member 146, and first transmission member 142 can drive first sliding member 144 and second sliding member 146 do equal speed reverse motion, first adjusting component 16 and second adjusting component 18 are all movably installed in shell 12, and first adjusting component 16 can be close to or away from first sliding member 144, and second adjusting component 18 can be close to or away from second sliding member 146.

[0048] Probe 20 includes camera, and guide joint 30 can bend, and probe 20 is connected to one end of guide joint 30, and one end of first spring sheath 40 is fixedly installed in first adjusting component 16, and the other opposite end of first spring sheath 40 is connected to guide joint 30, and one end of second spring sheath 50 is fixedly installed in second adjusting component 18, and the other opposite end of second spring sheath 50 is connected to guide joint 30.

[0049] One end of first traction line 60 is connected to first sliding member 144, and first traction line 60 is threaded first adjusting component 16 and first spring sheath 40, and the other opposite end of first traction line 60 is inserted and connected to guide joint 30, and one end of second traction line 70 is connected to second sliding member 146, and second traction line 70 is threaded second adjusting component 18 and second spring sheath 50, and the other opposite end of second traction line 70 is inserted and connected to guide joint 30.

[0050] Through the above structure, when the user needs to adjust the angle of probe 20, the user drives first sliding member 144 and second sliding member 146 do equal speed reverse motion through first transmission member 142, and first sliding member 144 is close to first spring sheath 40, and second sliding member 146 is away from second spring sheath 50, and second sliding member 146 pulls second traction line 70, to make the part of second traction line 70 in guide joint 30 shorten, and one end of second traction line 70 is connected to guide joint 30 and drives guide joint 30 to bend, and guide joint 30 pulls first traction line 60 in the process of bending, to make the part of first traction line 60 in guide joint 30 lengthen, and then the part of first traction line 60 between first sliding member 144 and first spring sheath 40 can also be straightened.

[0051] However, the first traction line 60 and the second traction line 70 have certain ductility, the first traction line 60 can be stretched after working for a period of time, or the length of the part of the first traction line 60 between the first sliding piece 144 and the first spring sheath 40 is greater than the length of the part of the second traction line 70 between the second sliding piece 146 and the second spring sheath 50 after the endoscope 100 is assembled; the part of the first traction line 60 between the first sliding piece 144 and the first spring sheath 40 is bent, so that when the first transmission piece 142 drives the first traction line 60 to pull the guide joint 30, the rotation range of the guide joint 30 becomes smaller. At this time, the first adjusting component 16 is moved in the direction away from the first sliding piece 144, so that the distance between the end of the first spring sheath 40 and the first sliding piece 144 becomes larger, the inner surface of the first spring sheath 40 abuts against the outer surface of the first traction line 60, the first spring sheath 40 pulls the first traction line 60, so that the first traction line 60 between the end of the first spring sheath 40 and the first sliding piece 144 can be straightened again, at the same time, the space for the first spring sheath 40 to be installed between the first adjusting component 16 and the guide joint 30 becomes smaller, and the bending degree of the first spring sheath 40 increases; when the first sliding piece 144 moves away from the first adjusting component 16 to pull the first traction line 60, the state of the first spring sheath 40 remains unchanged, and the first spring sheath 40 plays a guiding role on the first traction line 60, so that the moving distance of the first sliding piece 144 is equal to the distance of the first traction line 60 extending out of the first spring sheath 40, so as to improve the traction effect when the first sliding piece 144 drives the first traction line 60 to pull the guide joint 30.

[0052] The second traction line 70 can also be stretched after working for a period of time, or the length of the part of the second traction line 70 between the second sliding member 146 and the second spring sheath 50 is greater than the length of the part of the first traction line 60 between the first sliding member 144 and the first spring sheath 40 after the endoscope 100 is assembled; the part of the second traction line 70 between the second sliding member 146 and the second spring sheath 50 is bent, so that the second driving member drives the second traction line 70 to pull the guide joint 30, and the rotation range of the guide joint 30 is reduced. At this time, the second adjusting member 18 is moved away from the second sliding member 146, so that the distance between the end of the second spring sheath 50 and the second sliding member 146 is increased, the inner surface of the second spring sheath 50 abuts against the outer surface of the second traction line 70, the second spring sheath 50 pulls the second traction line 70, so that the second traction line 70 between the end of the second spring sheath 50 and the second sliding member 146 can be straightened again, and the space for installing the second spring sheath 50 between the second adjusting member 18 and the guide joint 30 is reduced, so that the bending degree of the second spring sheath 50 is increased; when the second sliding member 146 moves away from the second adjusting member 18 to pull the second traction line 70, the state of the second spring sheath 50 remains unchanged, and the second spring sheath 50 plays a guiding role on the second traction line 70, so that the moving distance of the second sliding member 146 is equal to the distance of the second traction line 70 extending out of the second spring sheath 50, so as to improve the traction effect when the second sliding member 146 drives the second traction line 70 to pull the guide joint 30.

[0053] Specifically, in the embodiment, the first linkage member 14 can be installed in the shell 12, the first driving member 142 can be a knob with a gear, the first driving member 142 can be rotationally connected to the shell 12, the first sliding member 144 and the second sliding member 146 can both be rack structures engaged with the first driving member 142, and the shell 12 is internally provided with guide grooves, and the first sliding member 144 and the second sliding member 146 are both located in corresponding guide grooves, so that when a user twists the knob, the gear rotates and drives the first sliding member 144 and the second sliding member 146 to synchronously move at a constant speed in opposite directions.

[0054] The first adjusting member 16 and the second adjusting member 18 are both hollow nut structures, and the first adjusting member 16 and the second adjusting member 18 are both threadedly connected to the shell 12; in the process of rotating the first adjusting member 16 relative to the shell 12, the first adjusting member 16 can be close to or away from the first sliding member 144, and in the process of rotating the second adjusting member 18 relative to the shell 12, the second adjusting member 18 can be close to or away from the second sliding member 146. The hollow part of the first adjusting member 16 can be used for installing the end of the first spring sheath 40 or for allowing the first traction line 60 to pass through; and the hollow part of the second adjusting member 18 can be used for installing the end of the second spring sheath 50 or for allowing the second traction line 70 to pass through.

[0055] The guide joint 30 is a cylindrical structure with ductility, the first traction line 60 is connected to one end of the guide joint 30 and the second traction line 70 is connected to one end of the guide joint 30, which are located on both sides of the central axis of the guide joint 30. The inner surface of the first spring sheath 40 is in close contact and mutual pressing with the first traction line 60, and the inner surface of the second spring sheath 50 is also in close contact and mutual pressing with the second traction line 70. The endoscope 100 can also include a flexible guide tube, which is sleeved outside the first spring sheath 40 and the second spring sheath 50.

[0056] The first traction line 60 and the second traction line 70 can be steel wire structures, and the lengths of the first traction line 60 and the second traction line 70 can be equal, and the first traction line 60 is parallel to the second traction line 70.

[0057] In other embodiments, the first linkage component 14 can also include a driving motor for driving the first transmission member 142 to rotate; the first adjustment component 16 and the second adjustment component 18 can also be other structures, for example, a slider that can move relative to the shell 12; the first traction line 60 and the second traction line 70 can also be made of other materials, such as copper, composite materials, etc.

[0058] Please refer to Figure 2 In some embodiments, the shell 12 is provided with a mounting cavity 1201, a first threaded hole 1202 and a second threaded hole 1204, one end of the first threaded hole 1202 communicates with the mounting cavity 1201, and the other opposite end of the first threaded hole 1202 penetrates through the outer surface of the shell 12, one end of the second threaded hole 1204 communicates with the mounting cavity 1201, and the other opposite end of the second threaded hole 1204 penetrates through the outer surface of the shell 12; the first linkage component 14 is installed in the mounting cavity 1201, the first adjustment component 16 is threadedly connected in the first threaded hole 1202, and the first adjustment component 16 partially protrudes from the outer side of the shell 12, and the second adjustment component 18 is threadedly connected in the second threaded hole 1204, and the second adjustment component 18 partially protrudes from the outer side of the shell 12.

[0059] Through the above structure, the first adjustment component 16 is threadedly connected in the first threaded hole 1202, when the first adjustment component 16 rotates relative to the shell 12, the first adjustment component 16 can move towards or away from the first sliding member 144, so that when the first sliding member 144 remains stationary, the distance between the first adjustment component 16 and the first sliding member 144 can be adjusted. And when the first adjustment component 16 rotates relative to the shell 12, the moving speed of the first adjustment component 16 is relatively slow, and then when the first traction line 60 between the first adjustment component 16 and the first sliding member 144 is straightened, the first adjustment component 16 can stop rotating in time.

[0060] In addition, the second adjusting member 18 is screwed into the second threaded hole 1204, and when the second adjusting member 18 rotates relative to the housing 12, the second adjusting member 18 can move towards or away from the second sliding member 146, so that when the second sliding member 146 remains stationary, the distance between the second adjusting member 18 and the second sliding member 146 can be adjusted. And when the second adjusting member 18 rotates relative to the housing 12, the movement speed of the second adjusting member 18 is relatively slow, and thus when the second traction line 70 between the second adjusting member 18 and the second sliding member 146 is straightened, the second adjusting member 18 can stop rotating in time.

[0061] Specifically, the first adjusting member 16 and the second adjusting member 18 are the same structure, the first adjusting member 16 is a hollow nut structure, the first spring sheath 40 is installed in the hollow part of the first adjusting member 16, and the first traction line 60 is arranged in the hollow part of the first adjusting member 16.

[0062] In some embodiments, the first transmission member 142 includes a gear, the first transmission member 142 is rotationally connected to the housing 12, the first sliding member 144 and the second sliding member 146 are both racks, the first sliding member 144 is located on one side of the first transmission member 142, and the second sliding member 146 is located on the other side opposite to the first transmission member 142, and the first sliding member 144 and the second sliding member 146 are both engaged with the first transmission member 142.

[0063] Through the above structure, the first transmission member 142 includes a gear, the first sliding member 144 and the second sliding member 146 are both racks; the first transmission member 142 is engaged with the first sliding member 144 and the second sliding member 146 at the same time, and thus the first transmission member 142 can drive the first sliding member 144 and the second sliding member 146 to move reversely synchronously during rotation, so that the first sliding member 144 and the second sliding member 146 have a high degree of synchronization.

[0064] Specifically, the first sliding member 144 and the second sliding member 146 are the same structure and parallel to each other; the housing 12 is provided with two parallel guide grooves, the first sliding member 144 is slidingly installed in one of the guide grooves, and the second sliding member 146 is slidingly installed in the other guide groove.

[0065] Please refer to Figure 4 In some embodiments, the first sliding member 144 is provided with a first guide through hole 1442, the first guide through hole 1442 penetrates the first sliding member 144, the central axis of the first guide through hole 1442 is parallel to the movement track of the first sliding member 144, one end of the first traction line 60 is connected to the end of the first sliding member 144 away from the first adjusting member 16, and the first traction line 60 passes through the first guide through hole 1442, the first adjusting member 16 and the first spring sheath 40.

[0066] The second sliding member 146 is provided with a second guide through hole 1462, the second guide through hole 1462 penetrates the second sliding member 146, the central axis of the second guide through hole 1462 is parallel to the movement track of the second sliding member 146, one end of the second traction line 70 is connected to the end of the second sliding member 146 away from the second adjusting component 18, and the second traction line 70 penetrates the second guide through hole 1462, the second adjusting component 18 and the second spring sheath 50.

[0067] Through the above structure, one end of the first traction line 60 is connected to the end of the first sliding member 144 away from the first adjusting component 16, so that the part of the first traction line 60 outside the first spring sheath 40 is longer, and the first guide through hole 1442 plays a guiding role on the first traction line 60, so that when the first sliding member 144 drives the first traction line 60 to move, the first traction line 60 can be more stable and will not shake. The central axis of the first guide through hole 1442 is parallel to the movement track of the first sliding member 144, so that the part of the first traction line 60 outside the first spring sheath 40 can remain linear during the movement of the first sliding member 144.

[0068] In addition, one end of the second traction line 70 is connected to the end of the second sliding member 146 away from the second adjusting component 18, so that the part of the second traction line 70 outside the second spring sheath 50 is longer, and the second guide through hole 1462 plays a guiding role on the second traction line 70, so that when the second sliding member 146 drives the second traction line 70 to move, the second traction line 70 can be more stable and will not shake. The central axis of the second guide through hole 1462 is parallel to the movement track of the second sliding member 146, so that the part of the second traction line 70 outside the second spring sheath 50 can remain linear during the movement of the second sliding member 146.

[0069] Specifically, the first guide through hole 1442 and the second guide through hole 1462 have the same structure, the first guide through hole 1442 can be a circular hole, and the first guide through hole 1442 can also be a hole of other shapes, for example, a rectangular hole.

[0070] In some embodiments, the first sliding member 144 includes a first limiting portion 1444, the first limiting portion 1444 is fixed to the end of the first sliding member 144 away from the first adjusting component 16, and one end of the first traction line 60 is connected to the first limiting portion 1444.

[0071] The second sliding member 146 includes a second limiting portion 1464, the second limiting portion 1464 is fixed to the end of the second sliding member 146 away from the second adjusting component 18, and one end of the second traction line 70 is connected to the second limiting portion 1464.

[0072] Through the above structure, the first traction line 60 is fixed to the first sliding piece 144 through the first limiting part 1444, and then the end of the first traction line 60 is connected to the first limiting part 1444, and then the first limiting part 1444 is fixed to the end of the first sliding piece 144 away from the first adjusting component 16, so that the first traction line 60 is more easily installed.

[0073] In addition, the second traction line 70 is fixed to the second sliding piece 146 through the second limiting part 1464, and then the end of the second traction line 70 is connected to the second limiting part 1464, and then the second limiting part 1464 is fixed to the end of the second sliding piece 146 away from the second adjusting component 18, so that the second traction line 70 is more easily installed.

[0074] Specifically, the first limiting part 1444 and the second limiting part 1464 have the same structure, the first limiting part 1444 is a ring-shaped metal structure, one end of the first traction line 60 extends into the inner ring of the first limiting part 1444 and is fixed, and the first limiting part 1444 is embedded into the end of the first sliding piece 144 away from the first adjusting component 16 and is fixed.

[0075] Please refer to Figure 5 In some embodiments, the central axis of the first threaded hole 1202 is collinear with the line between the first sliding piece 144 and the first adjusting component 16, the end of the first adjusting component 16 away from the first sliding piece 144 is provided with a first accommodating cavity 1602, and one end of the first spring sheath 40 is installed in the first accommodating cavity 1602; the central axis of the second threaded hole 1204 is collinear with the line between the second sliding piece 146 and the second adjusting component 18, the end of the second adjusting component 18 away from the second sliding piece 146 is provided with a second accommodating cavity 1802, and one end of the second spring sheath 50 is installed in the second accommodating cavity 1802.

[0076] Through the above structure, the central axis of the first threaded hole 1202 is collinear with the line between the first sliding piece 144 and the first adjusting component 16, so that the part of the first traction line 60 between the first spring sheath 40 and the first sliding piece 144 can be straightened. The central axis of the second threaded hole 1204 is collinear with the line between the second sliding piece 146 and the second adjusting component 18, so that the part of the second traction line 70 between the second spring sheath 50 and the second sliding piece 146 can be straightened.

[0077] Specifically, the first accommodating cavity 1602 and the second accommodating cavity 1802 are both cylindrical structures, the end of the first spring sheath 40 and the cavity wall of the first accommodating cavity 1602 can be connected to each other by gluing, and the end of the second spring sheath 50 and the cavity wall of the second accommodating cavity 1802 can also be connected to each other by gluing.

[0078] In some embodiments, the first adjusting component 16 comprises a first limiting step 162, the first limiting step 162 is provided with a first accommodating through hole 1622; the first accommodating cavity 1602 is communicated with the mounting cavity 1201 through the first accommodating through hole 1622, one end of the first spring sheath 40 installed in the first accommodating cavity 1602 abuts against the first limiting step 162, and the first traction line 60 is sequentially arranged in the first accommodating through hole 1622 and the first spring sheath 40.

[0079] The second adjusting component 18 comprises a second limiting step 182, the second limiting step 182 is provided with a second accommodating through hole 1822; the second accommodating cavity 1802 is communicated with the mounting cavity 1201 through the second accommodating through hole 1822, one end of the second spring sheath 50 installed in the second accommodating cavity 1802 abuts against the second limiting step 182, and the second traction line 70 is sequentially arranged in the second accommodating through hole 1822 and the second spring sheath 50.

[0080] Through the above structure, in the process that the first spring sheath 40 extends into the first accommodating cavity 1602, the first limiting step 162 limits the end of the first spring sheath 40, so that the length of the first spring sheath 40 extending into the first accommodating cavity 1602 is a fixed value, thereby controlling the distance between the first spring sheath 40 and the first sliding piece 144, and the part of the first traction line 60 between the first spring sheath 40 and the first sliding piece 144 is more easily straightened.

[0081] In addition, in the process that the second spring sheath 50 extends into the second accommodating cavity 1802, the second limiting step 182 limits the end of the second spring sheath 50, so that the length of the second spring sheath 50 extending into the second accommodating cavity 1802 is a fixed value, thereby controlling the distance between the second spring sheath 50 and the second sliding piece 146, and the part of the second traction line 70 between the second spring sheath 50 and the second sliding piece 146 is more easily straightened.

[0082] Specifically, the first accommodating cavity 1602, the second accommodating cavity 1802, the first accommodating through hole 1622 and the second accommodating through hole 1822 are circular holes, the diameter of the first accommodating cavity 1602 is greater than the diameter of the first accommodating through hole 1622, and the center axis of the first accommodating cavity 1602 is collinear with the center axis of the first accommodating through hole 1622; the diameter of the second accommodating cavity 1802 is greater than the diameter of the second accommodating through hole 1822, and the center axis of the second accommodating cavity 1802 is collinear with the center axis of the second accommodating through hole 1822.

[0083] In some embodiments, the housing 12 comprises a first metal nut 122 and a second metal nut 124, the first metal nut 122 is arranged between the cavity wall of the mounting cavity 1201 and the outer surface of the housing 12, and the first threaded hole 1202 is formed in the first metal nut 122; the second metal nut 124 is arranged between the cavity wall of the mounting cavity 1201 and the outer surface of the housing 12, and the second threaded hole 1204 is formed in the second metal nut 124.

[0084] Through the above structure, the first metal nut 122 is used for mounting the first adjusting component 16, the structure of the first metal nut 122 is more stable, thereby improving the stability of the first adjusting component 16 relative to the housing 12. In addition, the second metal nut 124 is used for mounting the second adjusting component 18, the structure of the second metal nut 124 is more stable, thereby improving the stability of the second adjusting component 18 relative to the housing 12.

[0085] Specifically, in the present embodiment, the first metal nut 122 and the second metal nut 124 are both made of copper; in other embodiments, the first metal nut 122 and the second metal nut 124 can also be made of other materials, such as iron, stainless steel, etc.

[0086] The outer surface of the first metal nut 122 is in a concave-convex structure, and the outer surface of the first metal nut 122 abuts against the housing 12, so that the first metal nut 122 can be stably mounted on the housing 12; the second metal nut 124 has the same structure as the first metal nut 122.

[0087] In some embodiments, the endoscope 100 further comprises a third spring sheath, a fourth spring sheath, a third traction line and a fourth traction line, the directions of the third traction line to the fourth traction line are perpendicular to the directions of the first traction line 60 to the second traction line 70.

[0088] The driving assembly 10 further comprises a second linkage component, a third adjusting component and a fourth adjusting component, the directions of the third adjusting component to the fourth adjusting component are perpendicular to the directions of the first adjusting component 16 to the second adjusting component 18; the second linkage component comprises a second transmission member and third and fourth sliding members slidingly connected to the housing 12, and the second transmission member can drive the third and fourth sliding members to move at the same speed in opposite directions.

[0089] One end of the third spring sheath is mounted on the third adjusting component, and the other opposite end of the third spring sheath is connected to the guide joint 30.

[0090] One end of the fourth spring sheath is mounted on the fourth adjusting component, and the other opposite end of the fourth spring sheath is connected to the guide joint 30.

[0091] One end of the third traction line is connected to the third sliding member, the third traction line passes through the third adjusting component and the third spring sheath, the inner surface of the third spring sheath abuts against the outer side surface of the third traction line, and the other opposite end of the third traction line extends into and is connected to the guide joint 30.

[0092] One end of the fourth traction line is connected to the fourth sliding member, the fourth traction line passes through the fourth adjusting component and the fourth spring sheath, the inner surface of the fourth spring sheath abuts against the outer side surface of the fourth traction line, and the other opposite end of the fourth traction line extends into and is connected to the guide joint 30.

[0093] Through the above structure, the directions of the third traction line to the fourth traction line are perpendicular to the directions of the first traction line 60 to the second traction line 70, and then in one direction, the first traction line 60 and the second traction line 70 can drive the guide joint 30 to rotate, and in another perpendicular direction, the third traction line and the fourth traction line can drive the guide joint 30 to rotate, so that the rotation angles of the guide joint 30 in the two perpendicular directions can be superimposed, and then the end portion of the guide joint 30 connected with the probe 20 can move in one curved surface.

[0094] Specifically, the second linkage component is the same in structure as the first linkage component 14, the first sliding member 144, the third sliding member, the second sliding member 146 and the fourth sliding member are sequentially arranged in the circumference of the shell 12; and the first transmission member 142 and the second transmission member are sequentially arranged in the moving direction of the first sliding member 144.

[0095] Please refer to Figure 1 In some embodiments, the endoscope 100 further comprises a flexible guide tube 80, one end of the flexible guide tube 80 is connected to the end of the guide joint 30 away from the probe 20, and the other opposite end of the flexible guide tube 80 is towards the driving assembly 10, and the first spring sheath 40 and the second spring sheath 50 are both arranged in the flexible guide tube 80.

[0096] Through the above structure, the flexible guide tube 80 plays a limiting role on the first spring sheath 40 and the second spring sheath 50, so that the bending conditions of the first spring sheath 40 and the second spring sheath 50 remain consistent, and the first spring sheath 40 and the second spring sheath 50 are prevented from diverging from each other.

[0097] Specifically, the flexible guide tube 80 can be made of nylon or other flexible materials, and the flexible guide tube 80 has a cylindrical structure, and the first spring sheath 40 and the second spring sheath 50 are both partially arranged in the flexible guide tube 80.

[0098] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, rather than limiting them; under the idea of the present application, the technical features in the above examples or different examples can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for simplicity; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An endoscope, characterized by, The utility model relates to a kind of medical endoscope, including: Drive assembly, the drive assembly includes shell, first linkage component, first adjusting component and second adjusting component, the first linkage component includes first transmission part and first slider, second slider slidingly connected to the shell, the first transmission part can drive the first slider and the second slider do equal-speed reverse motion;The first adjusting component and the second adjusting component are movably installed to the shell, the first adjusting component can be close to or away from the first slider, the second adjusting component can be close to or away from the second slider; Probe, the probe includes camera head; Guide joint, the guide joint can be bent, and the probe is connected to one end of the guide joint; First spring sheath, one end of the first spring sheath is fixedly installed to the first adjusting component, and the other opposite end of the first spring sheath is connected to the guide joint; Second spring sheath, one end of the second spring sheath is fixedly installed to the second adjusting component, and the other opposite end of the second spring sheath is connected to the guide joint; First traction line, one end of the first traction line is connected to the first slider, the first traction line is arranged through the first adjusting component and the first spring sheath, and the other opposite end of the first traction line is inserted and connected to the guide joint; Second traction line, one end of the second traction line is connected to the second slider, the second traction line is arranged through the second adjusting component and the second spring sheath, and the other opposite end of the second traction line is inserted and connected to the guide joint.

2. The endoscope of claim 1, wherein, The first transmission part includes gear, the first transmission part is rotatably connected to the shell, the first slider and the second slider are all rack, the first slider is located at one side of the first transmission part, the second slider is located at the other opposite side of the first transmission part, and the first slider and the second slider are engaged with the first transmission part.

3. The endoscope of claim 2, wherein, The first slider is provided with first guide through hole, the first guide through hole penetrates the first slider, the central axis of the first guide through hole is parallel to the movement track of the first slider, one end of the first traction line is connected to the end of the first slider away from the first adjusting component, and the first traction line is arranged through the first guide through hole, the first adjusting component and the first spring sheath; The second slider is provided with second guide through hole, the second guide through hole penetrates the second slider, the central axis of the second guide through hole is parallel to the movement track of the second slider, one end of the second traction line is connected to the end of the second slider away from the second adjusting component, and the second traction line is arranged through the second guide through hole, the second adjusting component and the second spring sheath.

4. The endoscope of claim 3, wherein, The first slider includes first limiting portion, the first limiting portion is fixed to the end of the first slider away from the first adjusting component, and one end of the first traction line is connected to the first limiting portion. The second sliding member comprises a second limiting part fixed to one end of the second sliding member away from the second adjusting part, and one end of the second traction line is connected to the second limiting part.

5. The endoscope of claim 1, wherein, The shell is provided with a mounting cavity, a first threaded hole and a second threaded hole. One end of the first threaded hole is in communication with the mounting cavity, and the other opposite end of the first threaded hole penetrates through the outer surface of the shell. One end of the second threaded hole is in communication with the mounting cavity, and the other opposite end of the second threaded hole penetrates through the outer surface of the shell. The first adjusting part is threadedly connected in the first threaded hole, and the first adjusting part partially protrudes outside the shell. The second adjusting part is threadedly connected in the second threaded hole, and the second adjusting part partially protrudes outside the shell.

6. The endoscope of claim 5, wherein, The central axis of the first threaded hole is collinear with the line connecting the first sliding member and the first adjusting part. The first adjusting part is provided with a first accommodating cavity at one end away from the first sliding member, and one end of the first spring sheath is mounted in the first accommodating cavity. The central axis of the second threaded hole is collinear with the line connecting the second sliding member and the second adjusting part. The second adjusting part is provided with a second accommodating cavity at one end away from the second sliding member, and one end of the second spring sheath is mounted in the second accommodating cavity.

7. The endoscope of claim 6, wherein, The first adjusting part comprises a first limiting step provided with a first accommodating through hole. The first accommodating cavity is in communication with the mounting cavity through the first accommodating through hole. One end of the first spring sheath mounted in the first accommodating cavity abuts against the first limiting step. The first traction line is sequentially arranged in the first accommodating through hole and the first spring sheath. The second adjusting part comprises a second limiting step provided with a second accommodating through hole. The second accommodating cavity is in communication with the mounting cavity through the second accommodating through hole. One end of the second spring sheath mounted in the second accommodating cavity abuts against the second limiting step. The second traction line is sequentially arranged in the second accommodating through hole and the second spring sheath.

8. The endoscope of claim 5, wherein, The shell comprises a first metal nut and a second metal nut. The first metal nut is arranged between the cavity wall of the mounting cavity and the outer surface of the shell, and the first threaded hole is arranged in the first metal nut. The second metal nut is arranged between the cavity wall of the mounting cavity and the outer surface of the shell, and the second threaded hole is arranged in the second metal nut.

9. The endoscope of claim 1, wherein, The third spring sheath, the fourth spring sheath, the third traction line and the fourth traction line are further included. The direction of the third traction line to the fourth traction line is perpendicular to the direction of the first traction line to the second traction line. The driving assembly further comprises a second linkage component, a third adjusting component and a fourth adjusting component, the direction of the third adjusting component to the fourth adjusting component is perpendicular to the direction of the first adjusting component to the second adjusting component; the second linkage component comprises a second transmission member, a third sliding member and a fourth sliding member which are slidingly connected to the shell, the second transmission member can drive the third sliding member and the fourth sliding member to make equal-speed reverse motion; One end of the third spring sheath is mounted to the third adjusting component, and the other opposite end of the third spring sheath is connected to the guide joint; One end of the fourth spring sheath is mounted to the fourth adjusting component, and the other opposite end of the fourth spring sheath is connected to the guide joint; One end of the third traction line is connected to the third sliding member, the third traction line passes through the third adjusting component and the third spring sheath, and the other opposite end of the third traction line extends into and is connected to the guide joint; One end of the fourth traction line is connected to the fourth sliding member, the fourth traction line passes through the fourth adjusting component and the fourth spring sheath, and the other opposite end of the fourth traction line extends into and is connected to the guide joint.

10. The endoscope of claim 1, wherein, Further comprising a flexible guide tube, one end of the flexible guide tube is connected to the end of the guide joint away from the probe, and the other opposite end of the flexible guide tube is towards the driving assembly, and the first spring sheath and the second spring sheath both pass through the flexible guide tube.

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