CN217244300U

CN217244300U - Endoscope inserting tube deflection adjustable mechanism and endoscope

Info

Publication number: CN217244300U
Application number: CN202221118190.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Hunan Vathin Medical Instrument Co Ltd
Current assignee: Hunan Vathin Medical Instrument Co Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-23
Anticipated expiration: 2032-05-11

Abstract

The utility model is suitable for an endoscope technical field provides an endoscope inserted tube amount of deflection adjustable mechanism and endoscope, include: the elastic piece is accommodated in the insertion pipe and arranged along the axial direction of the insertion pipe; the far end of the elastic piece is limited at the preset position of the insertion tube; a fixing member mounted to the endoscope handle; the adjusting piece is mounted on the fixing piece in an adjustable distance mode, the near end of the insertion tube is fixedly mounted on any one of the adjusting piece and the fixing piece, and the other one of the adjusting piece and the fixing piece is abutted to the near end of the elastic piece; the adjusting piece and the fixing piece are provided with a preset adjustable gap along the axial direction of the insertion pipe. The utility model discloses in, cooperation connected mode between mounting and the regulating part is screw-thread fit, adjusts its interval each other through relative rotation between regulating part and the mounting to make the elastic component compressed and release, reach the effect of adjusting the insert tube amount of deflection, in addition, this mode simple structure, operation process stability is strong.

Description

Endoscope inserting tube deflection adjustable mechanism and endoscope

Technical Field

The utility model belongs to the technical field of the endoscope, a mechanism that endoscope inserted tube amount of deflection is adjustable is related to, especially, relate to an endoscope.

Background

The medical endoscope is used for extending an insertion part into a human body, and observing internal tissues of the human body through a camera module at the far end of the insertion part, so that doctors can timely judge the position of pathological changes in the body of a patient and the tissue structure characteristics of the pathological changes.

In the prior art, in the process of inserting the insertion tube into a human body, because the deflection of the insertion tube is generally a fixed value, when the insertion tube meets a part with a larger bending angle in the process of inserting into the human body, the discomfort of a patient is enhanced due to the limitation of the deflection of the insertion tube, and therefore, the requirement is provided for the insertion tube with variable deflection in the using environment of an endoscope.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an endoscope inserting tube amount of deflection adjustable mechanism, include:

the elastic piece is accommodated in the insertion pipe and is arranged along the axial direction of the insertion pipe; the far end of the elastic piece is limited at a preset position of the insertion tube;

a fixture mounted to an endoscope handle;

the adjusting piece is mounted on the fixing piece in an adjustable distance mode, the proximal end of the insertion tube is fixedly mounted on any one of the adjusting piece and the fixing piece, and the other one of the adjusting piece and the fixing piece is abutted against the proximal end of the elastic piece;

the adjusting piece and the fixing piece are provided with a preset adjustable gap along the axial direction of the insertion tube.

Preferably, either one of the adjusting member and the fixing member is a sleeve with both ends penetrating through, and the other one of the adjusting member and the fixing member fixes the proximal end of the insertion tube and is in adjustable fit with the sleeve along the axial direction of the insertion tube.

Preferably, an abutting part is convexly arranged along the axial direction of the sleeve, and the free end of the abutting part abuts against the proximal end of the elastic part.

Preferably, an abutting member is provided between the abutting portion and the elastic member.

Preferably, the abutting piece is sleeved on the periphery of the instrument tube of the insertion tube and is connected with the outer wall of the instrument tube in a sliding mode.

Preferably, the sleeve is integrally provided with an abutting portion, the abutting portion is accommodated in an annular region defined by the sleeve, and a free end of the abutting portion abuts against a proximal end of the elastic member.

Preferably, the abutment is annular.

Preferably, the outer ring shell is annularly arranged on the periphery of the adjusting piece and is in fit connection with the front end of the handle of the endoscope.

Preferably, a sealing ring is arranged between the outer ring shell and the shell of the handle.

An endoscope comprises the endoscope insertion tube flexibility adjustable mechanism.

Has the advantages that:

1. the utility model discloses in, cooperation connected mode between mounting and the regulating part is screw-thread fit, adjusts its interval each other through relative rotation between regulating part and the mounting to make the elastic component compressed and release, reach the effect of adjusting the insert tube amount of deflection, in addition, this mode simple structure, operation process stability is strong.

2. The utility model discloses in, through with butt portion and sleeve integrated into one piece, can improve assembly efficiency, in addition, when butt portion damaged, only need to change the sleeve can, and need not change whole handle casing, so the economic nature is also stronger.

3. The utility model discloses in, butt portion is the annular, and the instrument pipe of endoscope passes from its annular region during installation, adopts the advantage that should set up to lie in, makes butt portion butt easier at the near-end of elastic component, has removed the butt joint process of butt portion with the elastic component from.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only 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 an endoscope handle provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a partially enlarged structure of a deflection adjustable mechanism at a position E inside a handle according to an embodiment of the present invention;

FIG. 3 is a schematic view of a partially enlarged structure of a deflection adjustable mechanism at the A/B position inside the handle according to an embodiment of the present invention;

fig. 4 is a schematic view of a partially enlarged structure of a deflection adjustable mechanism at a position C inside a handle according to an embodiment of the present invention;

fig. 5 is a schematic view of a structure of the fixing member and the adjusting member matching and a partial enlarged G position provided by the embodiment of the present invention;

fig. 6 is a partially enlarged structural diagram of an area F of a fitting between the handle housing and the outer ring housing of the adjusting member according to an embodiment of the present invention.

In the drawings:

10. an insertion tube; 11. the wall of the insertion tube; 12. an instrument tube; 100. an elastic member; 131. a limiting block; 132. an abutting member; 1321. an annular through hole; 20. a deflection adjustable mechanism; 21. an outer ring housing; 22. an adjustment member; 221. a fixing hole; 30. a handle housing; 32. a fixing member; 321. an annular region; 322. an abutment portion.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are intended as illustrations of a matter of simplicity of description and are not intended as limitations on the invention.

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

In the utility model, the near end and the far end are the far and near positions of the structure relative to the operation of human body in the use environment, so as to describe the position relationship between the components and facilitate understanding; "proximal" and "distal" are relative positional relationships, not absolute.

Referring to fig. 1, the present invention provides a deflection adjustable mechanism 20 for an insertion tube 10 of an endoscope, which is installed at the proximal end of the insertion tube 10 and the distal end of a handle housing 30; specifically, referring to fig. 2 to 4, the endoscope insertion tube 10 flexibility adjusting mechanism 20 includes:

the elastic piece 100 is accommodated in the insertion tube 10, specifically arranged in an accommodating space surrounded by the tube wall 11 of the insertion tube, and arranged along the axial direction of the insertion tube 10; the distal end of the elastic member 100 is limited at a preset position of the insertion tube 10, specifically, the distal end of the elastic member 100 abuts against a limiting block 131 arranged in the insertion tube 10; in the embodiment shown in the drawings of the present invention, the elastic member 100 is a coil spring, but may be an elastic member such as a spring plate in other embodiments.

The fixing piece 32 is installed on the handle of the endoscope, and specifically, the fixing piece 32 can be detachably and fixedly connected with the handle shell 30, and can also be integrally formed with the handle shell 30;

in addition, the present invention further provides an adjusting member 22, wherein the adjusting member 22 is mounted on the fixing member 32 with an adjustable distance, the proximal end of the insertion tube 10 is fixedly mounted to any one of the adjusting member 22 and the fixing member 32, and the other one of the adjusting member 22 and the fixing member 32 abuts against the proximal end of the elastic member 100; specifically, either one of the adjusting member 22 and the fixing member 32 is a sleeve structure with two ends penetrating through, the other one of the adjusting member 22 and the fixing member 32 fixes the proximal end of the insertion tube 10 and is in adjustable fit with the sleeve along the axial direction of the insertion tube 10, and the adjusting member 22 has a preset adjustable gap with the fixing member 32 along the axial direction of the insertion tube 10. Specifically, in the embodiment shown in fig. 2, the adjusting member 22 has a fixing hole 221 formed along the axial direction thereof for receiving and fixing the proximal end of the insertion tube 10; it should be noted that, in the embodiment shown in the drawings of the present invention, the fixing member 32 is of a sleeve structure, one end of the adjusting member 22 is cooperatively received in the receiving space surrounded by the sleeve, and the adjusting member 22 can move along the axial direction of the sleeve, specifically, in the embodiment shown in fig. 2 to fig. 6, the cooperative connection manner between the fixing member 32 and the adjusting member 22 is a threaded fit, and the distance between the adjusting member 22 and the fixing member 32 is adjusted by relative rotation between them, so that the elastic member 100 is compressed and released, and the effect of adjusting the deflection of the insertion tube 10 is achieved. In other embodiments, the fixing element 32 may be in the shape of the adjusting element 22 shown in fig. 2 to 6, and the adjusting element 22 adopts a sleeve structure, and the fixing element 32 and the adjusting element 22 shown in fig. 2 to 6 are connected in a matching manner by changing the structures of the fixing element 32 and the adjusting element 22, so that the adjusting effect of the present invention can still be achieved, which is not described herein again.

In the above embodiment, it is explained that the fixing element 32 and the adjusting element 22 are screwed to adjust the relative gap, specifically, the adjustment distance is the gap a shown in fig. 3, of course, in other embodiments, the fixing element 32 and the adjusting element 22 can also be coupled by snap-fit, specifically, the coupling portion of at least one of the fixing element 32 and the adjusting element 22 is an elastic body, and the two are coupled by a snap ring, the contact surfaces of the two are deformed by the force along the axial direction of the insertion tube 10 and are snapped to another snap ring, when the operator releases the force along the axial direction, the fixing element 32 and the adjusting element 22 are fixed by the abutment between the snap rings, and provide a supporting force for the proximal end of the elastic element 100. This way, the flexibility of the insertion tube 10 can be adjusted by moving the fixing member 32 and the adjusting member 22 along the axial direction of the insertion tube 10.

Further, in the embodiment shown in fig. 2 to 6, an abutting portion 322 is protruded along the axial direction of the sleeve, and a free end of the abutting portion 322 abuts against the proximal end of the elastic member 100. It should be noted that the abutting portion 322 may be detachably or integrally disposed in the endoscope handle housing 30, and the disposed position thereof may extend into the axial direction of the sleeve and abut against the proximal end of the elastic member 100, and since the position of the abutting portion 322 is fixed relative to the handle housing 30, when the adjusting member 22 rotates or moves along the axial direction of the insertion tube 10, the elastic member 100 may be compressed or the elastic member 100 may be released, so as to adjust the length of the elastic member 100, thereby achieving the purpose of adjusting the deflection of the insertion tube 10.

Of course, as a preferred embodiment, an abutting portion 322 is integrally disposed on the sleeve, the abutting portion 322 is received in the annular region 321 surrounded by the sleeve, and a free end of the abutting portion 322 abuts against the proximal end of the elastic element 100. Through with butt portion 322 and sleeve integrated into one piece, can improve assembly efficiency, in addition, when butt portion 322 damages, only need to change the sleeve can, and need not change whole handle housing 30, so the economic nature is also stronger.

Preferably, the abutment 322 is annular, and the instrument tube 12 of the endoscope passes through the annular region 321 thereof during installation, which is advantageous in that, on the one hand, the abutment 322 is more easily abutted against the proximal end of the elastic member 100, and the abutment 322 is prevented from abutting against the elastic member 100.

Further, as shown in fig. 5, an abutting member 132 is disposed between the abutting portion 322 and the elastic member 100; the abutting part 132 is provided with an annular through hole 1321, and the abutting part 132 is sleeved on the periphery of the instrument tube 12 of the endoscope through the annular through hole 1321 and is connected with the outer wall of the instrument tube 12 in a sliding way.

Referring to fig. 4, an outer ring housing 21 is annularly arranged on the periphery of the adjusting member 22, and the outer ring housing 21 is connected with the front end of the handle of the endoscope in a matching manner. The outer ring housing 21 is provided for facilitating the operator to manually rotate or slide the adjustment member 22, thereby achieving the adjustment of the deflection of the endoscope insertion tube 10; furthermore, a sealing ring is arranged between the outer ring housing 21 and the housing of the handle, the purpose of the sealing ring is to prevent a gap from being formed between the outer ring housing 21 and the handle housing 30, the gap is easy for bacteria in the external environment to enter the inside of the handle, and in addition, the sealing ring can also limit the gap distance between the outer ring housing 21 and the handle housing 30 to prevent the handle housing 30 from loosening.

The utility model also provides an endoscope, including foretell endoscope insertion tube 10 amount of deflection adjustable mechanism 20.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An endoscope insertion tube flexibility adjustable mechanism is characterized by comprising:

an elastic member (100), the elastic member (100) being accommodated in the insertion tube (10) and being disposed along an axial direction of the insertion tube (10); the far end of the elastic piece (100) is limited at a preset position of the insertion tube (10);

a fixture (32), the fixture (32) mounted to an endoscope handle;

an adjusting member (22), wherein the adjusting member (22) is mounted on the fixing member (32) in a distance-adjustable manner, the proximal end of the insertion tube (10) is fixedly mounted on any one of the adjusting member (22) and the fixing member (32), and the other one of the adjusting member (22) and the fixing member (32) is abutted with the proximal end of the elastic member (100);

the adjusting piece (22) has a preset adjustable clearance with the fixing piece (32) along the axial direction of the insertion tube (10).

2. An endoscope insertion tube deflection adjustable mechanism as defined in claim 1, wherein: either one of the adjusting piece (22) and the fixing piece (32) is a sleeve with two ends penetrating through, and the other one of the adjusting piece (22) and the fixing piece (32) is used for fixing the proximal end of the insertion tube (10) and is in adjustable fit with the sleeve along the axial direction of the insertion tube (10).

3. An endoscope insertion tube deflection adjustable mechanism according to claim 2 and further comprising: an abutting part (322) is arranged in a protruding mode along the axial direction of the sleeve, and the free end of the abutting part (322) abuts against the near end of the elastic piece (100).

4. An endoscope insertion tube deflection adjustable mechanism according to claim 3 and further comprising: an abutting piece (132) is arranged between the abutting part (322) and the elastic piece (100).

5. An endoscope insertion tube deflection adjustable mechanism according to claim 4 and further comprising: the abutting piece (132) is sleeved on the periphery of the instrument tube (12) of the insertion tube (10) and is connected with the outer wall of the instrument tube (12) in a sliding mode.

6. An endoscope insertion tube deflection adjustable mechanism according to claim 2 and further comprising: an abutting part (322) is integrally arranged on the sleeve, the abutting part (322) is accommodated in an annular area (321) defined by the sleeve, and the free end of the abutting part (322) abuts against the near end of the elastic part (100).

7. An endoscope insertion tube deflection adjustable mechanism according to claim 6 and further comprising: the abutment (322) is annular.

8. An endoscope insertion tube deflection adjustable mechanism as defined in claim 1, wherein: the outer ring shell (21) is annularly arranged on the periphery of the adjusting piece (22), and the outer ring shell (21) is connected with the front end of a handle of the endoscope in a matched mode.

9. An endoscope insertion tube deflection adjustable mechanism according to claim 8 and further comprising: and a sealing ring is arranged between the outer ring shell (21) and the shell of the handle.

10. An endoscope, characterized by: comprising the endoscope insertion tube deflection adjustable mechanism of any of claims 1-9.