CN219353837U - Correction device for catheter endoscope and catheter endoscope system - Google Patents

Abstract

The utility model relates to a compensating device of a catheter endoscope and a catheter endoscope system, wherein the catheter endoscope comprises an objective lens assembly, an ocular lens assembly and a rod lens assembly communicated with the objective lens assembly and the ocular lens assembly, and the compensating device comprises: the adjusting knob is connected with the ocular component and the rod lens component and is used for adjusting the axial distance between the ocular component and the rod lens component, and the ocular component and the rod lens component are respectively arranged to be axially clamped with the adjusting knob; the radial positioning structure is arranged between the ocular lens component and/or the rod lens component and the adjusting knob. The correction device of the catheter endoscope provides a radial clearance between an adjusting knob and an ocular component and/or a rod lens component through a radial positioning structure, so that the phenomenon that the ocular component and the rod lens component are not coaxial in the axial interval process of adjusting the ocular component and the rod lens component by the correction device is reduced.

Description

Correction device for catheter endoscope and catheter endoscope system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a correction device of a catheter endoscope and a catheter endoscope system.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

At present, a correction device is arranged on a catheter endoscope in the market, the distance between lens groups in the catheter endoscope is adjusted through the correction device to meet imaging requirements, however, the unreasonable design of the correction device can cause different axes between the lens groups, so that the light energy loss of light in the transmission process is increased, serious chromatic aberration phenomenon can be caused after light imaging, and the development of the catheter endoscope in the market is restricted.

Disclosure of Invention

The utility model aims to at least solve the technical problem that the correction device of the catheter endoscope is unreasonably designed to cause different axes in the light transmission process, and the aim is realized by the following technical scheme:

a first aspect of the present utility model provides a correction device for a catheter endoscope including an objective lens assembly, an eyepiece lens assembly, and a rod lens assembly communicating the objective lens assembly and the eyepiece lens assembly, the correction device comprising: the adjusting knob is connected with the ocular component and the rod lens component and is used for adjusting the axial distance between the ocular component and the rod lens component, and the ocular component and the rod lens component are respectively arranged to be axially clamped with the adjusting knob; the radial positioning structure is arranged between the ocular lens component and/or the rod lens component and the adjusting knob.

It can be appreciated by those skilled in the art that the correction device of the catheter endoscope of the present application proposes to make up the radial gap between the adjusting knob and the eyepiece assembly and/or the rod lens assembly by the radial positioning structure, so as to reduce the phenomenon that the eyepiece assembly and the rod lens assembly are not coaxial during the axial distance adjustment of the eyepiece assembly and the rod lens assembly.

In some embodiments, the axial snap-fit manner of the eyepiece and rod mirror assemblies to the adjustment knob includes at least one of a snap-fit connection, a bayonet connection, a pin connection, or a threaded connection.

In some embodiments, in the case of threaded connection of the rod mirror assembly and the adjustment knob, one end of the adjustment knob is arranged to be axially clamped with the eyepiece assembly, a radial positioning structure and a threaded connection structure distributed along an axial adjustment direction are arranged between the other end of the adjustment knob and the rod mirror assembly, and the radial positioning structure is sized to be matched with a radial gap of the threaded connection structure.

In some embodiments, the rod mirror assembly comprises a rod barrel and a rod mirror set disposed within the rod barrel, the radial positioning structure comprises a circumferential positioning surface disposed sequentially along a proximal end to a distal end of the rod barrel, and the threaded connection structure comprises an external threaded structure disposed along an outer wall of the rod barrel.

In some embodiments, the rod lens assembly comprises a rod lens barrel and a rod lens group arranged in the rod lens barrel, a sleeve is sleeved outside the rod lens barrel, the radial positioning structure comprises a circumferential positioning surface arranged on the outer wall of the sleeve, the threaded connection structure comprises an external thread structure arranged on the outer wall of the sleeve, the outer wall of the rod lens barrel and the inner wall of the sleeve are in circumferential positioning fit, and the end part of the rod lens barrel and the end part of the sleeve are in fixed connection.

In some embodiments, the catheter endoscope further comprises a barrel press sleeve sleeved to an end of the barrel, and the radial positioning structure further comprises a first circumferential mating portion disposed between an inner wall of the adjustment knob and an outer wall of the barrel press sleeve.

In some embodiments, the eyepiece assembly includes a eyepiece barrel and an eyepiece group disposed within the eyepiece barrel, an outer wall of the eyepiece barrel is provided with a first stepped portion, and an inner wall of the adjustment knob is provided with a second stepped portion that is engaged with the first stepped portion.

In some embodiments, the adjustment knob includes a knob sleeve that is sleeved to the eyepiece barrel and a radial adjustment member that is configured to be able to pass through the knob sleeve and abut to the eyepiece barrel, and/or the radial positioning structure includes a second circumferential fit portion that is disposed between the knob sleeve and the eyepiece barrel.

In some embodiments, the rod lens assembly includes a rod barrel and a plurality of rod lenses disposed inside the rod barrel along an axial spacing of the rod barrel, and/or the eyepiece assembly includes a eyepiece barrel and a plurality of eyepieces disposed inside the eyepiece barrel along an axial spacing of the eyepiece barrel.

A second aspect of the present utility model provides a catheter endoscope system including a catheter endoscope and a correction device of the catheter endoscope according to the first aspect of the present utility model.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic view of a catheter endoscope according to an embodiment of the present application;

FIG. 2 is a schematic view of a disassembled structure of the catheter endoscope shown in FIG. 1;

FIG. 3 is a cross-sectional view of the catheter endoscope of FIG. 1;

fig. 4 is a schematic view of a part a structure of the catheter endoscope shown in fig. 3.

Wherein, the reference numerals are as follows:

100. a catheter endoscope; 10A, an axial clamping structure; 10B, a threaded connection structure; 10C, a radial positioning structure;

10. a rod mirror assembly; 11. a rod lens barrel; 12. a rod mirror; 121. a spacer ring; 13. a sleeve; 131. a circumferential positioning mating portion; 132. a sleeve fixing part; 14. rod mirror pressing cylinder; 141. a first circumferential mating portion; 15. an elastic element; 16. a retainer ring;

20. an eyepiece assembly; 21. a eyepiece barrel; 211. a first step portion; 212. a second circumferential mating portion; 22. an eyepiece; 23. an eyepiece pressing cylinder; 24. a grating;

30. an adjustment knob; 31. a knob sleeve; 32. a radial adjustment member;

40. an objective lens assembly.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the correction device of the present utility model is described in terms of a rigid tube endoscope, and is not limited in scope by the scope of application of the correction device, for example, the correction device of the present utility model may also be applied to a flexible tube endoscope, without departing from the scope of protection of the correction device of the present utility model.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.

Although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. In addition, in the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

For ease of description, spatially relative terms, such as "axial," "radial," "end," "inner," "proximal," "distal," "outer," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

In addition, the "proximal end" and the "distal end" described in the embodiments of the present application are referred to as "proximal end" in the interventional medical device, and specifically, the side of the medical device close to the operator is "distal end" and the side remote from the operator is "proximal end" with respect to the operation.

The catheter endoscope system on the market comprises a catheter endoscope and a correction device, the distance between adjacent lens groups in the catheter endoscope is adjusted through the correction device so as to meet imaging requirements, however, the unreasonable design of the correction device can cause the phenomenon of different axes between the adjacent lens groups, so that the phenomenon of different axes of light in the transmission process is caused, the light energy loss of the light in the transmission process is increased, the phenomenon of serious chromatic aberration of the light after imaging is caused, and the development of the catheter endoscope in the market is restricted.

This application is to the irrational phenomenon that leads to the light to be coaxial of correction device design of pipe endoscope, has put forward to set up correction device into radial positioning and threaded connection complex installation mode to this reduces correction device installation irrational and leads to the phenomenon of light to be coaxial, moreover, for the convenience setting forth the pipe endoscope of this application embodiment, the drawing and the embodiment of this application are set forth in detail as the preferred embodiment through hard tube endoscope.

As shown in fig. 1 and 2, a first aspect of the present utility model provides a correction device for a catheter endoscope 100, where the catheter endoscope 100 includes an objective lens assembly 40, an eyepiece lens assembly 20, and a rod lens assembly 10 communicating the objective lens assembly 40 and the eyepiece lens assembly 20, the correction device includes an adjustment knob 30 and a radial positioning structure 10C, the adjustment knob 30 connects the eyepiece lens assembly 20 and the rod lens assembly 10 and adjusts an axial distance between the eyepiece lens assembly 20 and the rod lens assembly 10, the eyepiece lens assembly 20 and the rod lens assembly 10 are respectively configured to be axially clamped with the adjustment knob 30 through an axial clamping structure 10A, and the radial positioning structure 10C is provided between the eyepiece lens assembly 20 and/or the rod lens assembly 10 and the adjustment knob 30.

In this embodiment, the correction device of the catheter endoscope 100 of the present application proposes to compensate the radial gap between the adjusting knob 30 and the eyepiece assembly 20 and/or the rod lens assembly 10 through the radial positioning structure 10C, so as to reduce the phenomenon that the correction device does not align the eyepiece assembly 20 with the rod lens assembly 10 during the axial distance adjustment of the eyepiece assembly 20 and the rod lens assembly 10.

In addition, the specific structure of the axial clamping manner is not limited in this embodiment, because the axial clamping manner of the eyepiece assembly 20 and the rod lens assembly 10 and the adjusting knob 30 described in this embodiment includes at least one of a snap connection, a ferrule connection, a pin connection or a screw connection, and the specific connection manner of the eyepiece assembly 20 and the rod lens assembly 10 and the adjusting knob 30 will be described below through the preferred embodiment of this application.

Specifically, under the condition that the rod lens assembly 10 is in threaded connection with the adjusting knob 30, the eyepiece assembly 20 and the rod lens assembly 10 are respectively arranged to be in axial clamping connection with the adjusting knob 30 through the axial clamping structure 10A and in threaded connection with the adjusting knob 30 through the threaded connection structure 10B, the radial positioning structure 10C is arranged to be in a radial clearance matched with the threaded connection, reflected light L of an observed object can be transmitted to the eyepiece assembly 20 after passing through the objective lens assembly 40 and the rod lens assembly 10, and in order to reduce the phenomenon that the reflected light of the observed object is different in light when passing through the rod lens assembly 10 and the eyepiece assembly 20, the embodiment of the application proposes an installation mode that the adjusting knob 30 connected with the eyepiece assembly 20 and the rod lens assembly 10 is arranged to be in radial positioning and in threaded connection clamping connection, so that the phenomenon that light energy is wasted due to the fact that the eyepiece assembly 20 is not coaxial with the rod lens assembly 10 when the adjusting knob 30 adjusts the distance between the eyepiece assembly 20 and the rod lens assembly 10 is reduced.

In addition, the specific structural distribution of the axial clamping structure 10A, the threaded connection structure 10B and the radial positioning structure 10C is not limited in the embodiments of the present utility model, because the radial positioning structure 10C is matched with the axial clamping structure 10A and the threaded connection structure 10B to reduce the adjustment error of the adjusting knob 30, and as for the specific structure of the radial positioning structure 10C, various combinations may be adopted, for example, the radial positioning structure 10C may be configured as a groove positioning, a protrusion positioning or a circumferential positioning, and the threaded connection structure 10B may be configured at the proximal end of the radial positioning structure 10C or the distal end of the radial positioning structure 10C, which all fall within the scope of the embodiments of the present application.

The specific structure and distribution of the axial clamping structure 10A, the threaded connection structure 10B, and the radial positioning structure 10C according to the embodiment of the present utility model will be described in detail below.

As shown in fig. 3 and 4, in some embodiments, in the case that the rod lens assembly 10 is screwed with the adjustment knob 30, one end of the adjustment knob 30 is configured to be axially clamped with the eyepiece assembly 20, a radial positioning structure 10C and a threaded connection structure 10B distributed along the axial adjustment direction are disposed between the other end of the adjustment knob 30 and the rod lens assembly 10, and the radial positioning structure 10C is sized to match a radial gap of the threaded connection structure 10B.

In this embodiment, the threaded connection structure 10B disposed between the other end of the adjusting knob 30 and the rod lens assembly 10 is used for connecting the adjusting knob 30 and the rod lens assembly 10, and driving the rod lens assembly 10 to axially displace by screwing the threads between the adjusting knob 30 and the rod lens assembly 10, so as to achieve the purpose of adjusting the distance between the rod lens assembly 10 and the eyepiece assembly 20. Because the threaded connection structure 10B itself has radial clearance, in order to reduce radial deflection between the adjusting knob 30 and the rod lens assembly 10 due to the radial clearance, the embodiment of the application proposes that a radial positioning structure 10C is arranged between the adjusting knob 30 and the rod lens assembly 10, the radial positioning structure 10C comprises a circumferential contact surface between the other end of the adjusting knob 30 and the rod lens assembly 10, the radial limiting effect is achieved through the circumferential contact surface between the other end of the adjusting knob 30 and the rod lens assembly 10, and radial deflection between the other end of the adjusting knob 30 and the rod lens assembly 10 due to the radial clearance is reduced.

As shown in fig. 3 and 4, in some embodiments, the rod lens assembly 10 includes a rod lens barrel 11 and a rod lens group (the rod lens group includes a plurality of rod lenses 12) disposed within the rod lens barrel 11, the radial positioning structure 10C includes a circumferential positioning surface disposed sequentially along a proximal end to a distal end of the rod lens barrel 11, and the threaded connection structure 10B includes an external threaded structure disposed along an outer wall of the rod lens barrel 11.

In this embodiment, the other end of the adjusting knob 30 is provided with an internal thread structure and a circumferential positioning surface distributed from the port to the inside, in the process of adjusting the interval between the rod barrel 11 and the eye barrel 21 by the adjusting knob 30, the internal thread structure of the adjusting knob 30 is matched with the external thread structure of the rod barrel 11, the circumferential positioning surface of the adjusting knob 30 is matched with the circumferential positioning surface of the rod barrel 11, the internal thread structure of the adjusting knob 30 and the external thread structure of the rod barrel 11 play an axial limiting role, the phenomenon of axial displacement in the process of axially adjusting the adjusting knob 30 and the rod barrel 11 is reduced, the circumferential positioning surface of the adjusting knob 30 and the circumferential positioning surface of the rod barrel 11 play a radial limiting role, and the phenomenon of radial displacement or deflection in the process of axially adjusting the adjusting knob 30 and the rod barrel 11 is reduced.

Further, the arrangement of the circumferential positioning surface and the external thread structure to be distributed from the proximal end to the distal end on the barrel 11 is only a preferred embodiment of the present application, and is not limited to the relative positions of the circumferential positioning surface and the external thread, for example, in other embodiments of the present application, the circumferential positioning surface and the external thread may be also arranged from the distal end to the proximal end on the barrel 11, and such adjustment is also within the scope of the embodiments of the present application.

As shown in fig. 3 and 4, in some embodiments, the rod lens assembly 10 includes a rod lens barrel 11 and a rod lens group (the rod lens group includes a plurality of rod lenses 12) disposed in the rod lens barrel 11, the rod lens barrel 11 is sleeved with a sleeve 13, the radial positioning structure 10C includes a circumferential positioning surface disposed on an outer wall of the sleeve 13, the threaded connection structure 10B includes an external thread structure disposed on an outer wall of the sleeve 13, the outer wall of the rod lens barrel 11 and an inner wall of the sleeve 13 are disposed in circumferential positioning engagement, and an end of the rod lens barrel 11 and an end of the sleeve 13 are disposed in fixed connection.

In this embodiment, the sleeve 13 is sleeved outside the rod barrel 11, which can protect the rod barrel 11, and reduce the damage to the rod barrel 11 caused by the direct action of the adjusting knob 30 on the rod barrel 11, and in addition, the length of the sleeve 13 is smaller than that of the rod barrel 11, and the processing difficulty of the circumferential positioning surface and the external threads can be reduced by arranging the circumferential positioning surface and the external threads on the outer wall of the sleeve 13.

In addition, by providing the circumferential positioning fitting portion 131 between the outer wall of the barrel 11 and the inner wall of the sleeve 13, the coaxiality between the barrel 11 and the sleeve 13 can be improved, and the phenomenon that the adjusting knob 30 is not coaxial with the eyepiece barrel 21 in the process of adjusting the barrel 11 due to the different coaxiality between the barrel 11 and the sleeve 13 can be reduced.

Further, the rod lens barrel 11 and the sleeve 13 are attached and positioned through the circumferential surface, and then the sleeve fixing part 132 is formed by fixing in a welding manner, so that the coaxiality of the rod lens barrel 11 and the sleeve 13 is ensured, the deviation can not occur in the subsequent process operation, and the working stability of the catheter endoscope 100 is improved.

It will be appreciated by those skilled in the art that by arranging the end of the barrel 11 in fixed connection with the end of the sleeve 13, the stability of the installation between the barrel 11 and the sleeve 13, as well as the coaxial stability, can be improved, and the phenomenon of the adjustment error caused by the displacement of the sleeve 13 during the process of acting on the sleeve 13 by the adjustment knob 30 can be reduced.

As shown in fig. 3 and 4, in some embodiments, the catheter endoscope 100 further includes a barrel 14 sleeved to an end of the barrel 11, and the radial positioning structure 10C further includes a first circumferential engagement portion 141 provided between an inner wall of the adjustment knob 30 and an outer wall of the barrel 14.

In this embodiment, the barrel 14 is sleeved to the end of the barrel 11 for limiting the barrel in the barrel 11, preventing the barrel in the barrel 11 from sliding out of the barrel 11, and by setting the inner wall of the adjusting knob 30 to be a circumferential mating surface with the outer wall of the barrel 14, the coaxiality between the adjusting knob 30 and the barrel 14 can be further improved, and the axial misalignment between the adjusting knob 30 and the barrel 14 can be reduced.

Further, the rod lens pressing cylinder 14 is sleeved with an elastic element 15, the eye lens cylinder 21 is in contact with the elastic element 15 through a retainer ring 16, the elastic element 15 is extruded by the eye lens cylinder 21 in the process of adjusting the interval between the rod lens cylinder 11 and the eye lens cylinder 21 by the adjusting knob 30, and the elastic element 15 acts on the rod lens pressing cylinder 14, so that the rod lens pressing cylinder 14 is tightly attached to a cylinder opening of the rod lens cylinder 11 under the action of the elastic element 15. The elastic element 15 makes the rod lens pressing cylinder 14 elastically contact with the end surface of the rod lens barrel 11, plays a role in buffering the rod lens 12 in the rod lens barrel 11, and can protect the rod lens 12 in the rod lens barrel 11 to a certain extent.

As shown in fig. 3 and 4, in some embodiments, the eyepiece assembly 20 includes the eyepiece barrel 21 and the eyepiece group disposed within the eyepiece barrel 21, the outer wall of the eyepiece barrel 21 is provided with a first stepped portion 211, and the inner wall of the adjustment knob 30 is provided with a second stepped portion (overlapping with the mark of the first stepped portion 211) that is engaged with the first stepped portion 211.

In the present embodiment, the first step portion 211 of the eyepiece barrel 21 is matched with the second step portion (overlapped with the mark of the first step portion 211) of the adjusting knob 30, so that the axial clamping structure 10A between the adjusting knob 30 and the eyepiece assembly 20 is formed, the phenomenon that one end of the adjusting knob 30 is limited to shift toward the rod barrel 11 is achieved, meanwhile, the elastic element 15 arranged outside the rod barrel 14 is used for applying a reverse acting force to the eyepiece barrel 21, so that the first step portion 211 of the eyepiece barrel 21 is closely attached to the second step portion (overlapped with the mark of the first step portion 211) of the adjusting knob 30, and the phenomenon that the adjusting knob 30 is relatively shifted between the eyepiece barrel 21 and the adjusting knob 30 in the process of adjusting the eyepiece barrel is reduced.

As shown in fig. 3 and 4, in some embodiments, the adjustment knob 30 includes a knob sleeve 31 and a radial adjustment member 32, the knob sleeve 31 being sleeved to the eyepiece barrel 21, the radial adjustment member 32 being provided so as to be capable of penetrating the knob sleeve 31 and abutting to the eyepiece barrel 21.

In the present embodiment, in the correction device of the catheter endoscope 100, the distance between the eyepiece assembly 20 and the rod lens assembly 10 is adjusted by adjusting the amount of precession between the knob 30 and the sleeve 13 of the rod lens, so that the catheter endoscope 100 can find the clearest image position by the correction device.

Further, the radial adjusting member 32 includes a plurality of adjusting screws uniformly distributed on the circumferential surface of the knob sleeve 31, and radial fine adjustment is performed by the plurality of adjusting screws uniformly distributed on the circumferential surface of the knob sleeve 31 to correct the problem of the non-coaxial between the adjusting knob 30 and the eyepiece barrel 21 caused by the machining and assembly errors of parts, so that the imaging quality of the catheter endoscope 100 is better.

Further, in some embodiments, the radial positioning structure 10C includes the second circumferential mating portion 212 disposed between the knob sleeve 31 and the eyepiece barrel 21, and the circumferential surface between the knob sleeve 31 and the eyepiece barrel 21 is in large-scale fit, so that coaxiality between the eyepiece barrel 21 and the adjusting knob 30 can be ensured, and no deviation occurs in the subsequent assembly process, so that the working stability of the catheter endoscope 100 is improved.

As shown in fig. 3 and 4, in some embodiments, the rod lens assembly 10 includes a rod barrel 11 and a plurality of rod lenses disposed inside the rod barrel 11 at intervals along an axial direction of the rod barrel 11, and/or the eyepiece assembly 20 includes an eyepiece barrel 21 and a plurality of eyepieces disposed inside the eyepiece barrel 21 at intervals along the axial direction of the eyepiece barrel 21.

In this embodiment, taking a plurality of rod lenses as 6 rod lenses 12 as an example, 6 rod lenses 12 are installed in the same rod lens barrel 11, and two adjacent rod lenses 12 are separated by a spacer 121, so that the coaxiality of the rod lens assembly 10 is simply and effectively ensured, taking a plurality of ocular lenses as 2 ocular lenses 22 as an example, 2 ocular lenses 22 are installed in the same ocular lens barrel 21, so that the coaxiality between the 2 ocular lenses 22 is simply and effectively ensured.

A second aspect of the present utility model provides a catheter endoscope system including a catheter endoscope 100 and a correction device of the catheter endoscope 100 according to the first aspect of the present utility model.

In the present embodiment, the catheter endoscope 100 system includes an organ endoscope system and the like, the catheter endoscope 100 system includes the catheter endoscope 100 and the correction device of the catheter endoscope 100 according to the first aspect of the present utility model, and the catheter endoscope 100 extends into the human tissue for transmitting the flare generated by the light source device of the endoscope system to the human tissue, facilitating the medical staff to view the condition of the human tissue.

The endoscope system provided by the embodiment of the utility model has at least the following technical effects: the catheter endoscope 100 system of the present application proposes to compensate for the radial clearance between the adjustment knob 30 and the eyepiece assembly 20 and/or the rod lens assembly 10 by the radial positioning structure 10C, so as to reduce the phenomenon that the correction device is not coaxial with the eyepiece assembly 20 and the rod lens assembly 10 in the process of adjusting the axial distance between the eyepiece assembly 20 and the rod lens assembly 10.

In addition, the embodiment of the present application is only described with respect to the configuration of the improvement point of the present application, and does not represent that the catheter endoscope 100 of the present application is provided with the above-described configuration, and for example, the catheter endoscope 100 of the present application further includes the eyepiece barrel 23 provided at the proximal end of the eyepiece barrel 21 and the grating 24 provided at the distal end of the eyepiece barrel 21.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A correction device for a catheter endoscope, the catheter endoscope comprising an objective lens assembly, an eyepiece lens assembly, and a rod lens assembly in communication with the objective lens assembly and the eyepiece lens assembly, the correction device comprising:

the adjusting knob is connected with the eyepiece component and the rod lens component and used for adjusting the axial distance between the eyepiece component and the rod lens component, and the eyepiece component and the rod lens component are respectively arranged to be axially clamped with the adjusting knob;

the radial positioning structure is arranged between the eyepiece component and/or the rod lens component and the adjusting knob.

2. The catheter endoscope compensation device of claim 1, wherein the axial snap-fit manner of the eyepiece assembly and the rod mirror assembly to the adjustment knob comprises at least one of a snap-fit connection, a pin connection, or a threaded connection.

3. The catheter endoscope correction device according to claim 2, wherein in the case where the rod mirror assembly is screwed with the adjustment knob, one end of the adjustment knob is provided to be axially engaged with the eyepiece assembly, the radial positioning structure and the screw connection structure distributed in the axial adjustment direction are provided between the other end of the adjustment knob and the rod mirror assembly, and the radial positioning structure is sized to fit a radial gap of the screw connection structure.

4. The catheter endoscope correction device according to claim 3, wherein the rod lens assembly comprises a rod lens barrel and a rod lens group disposed in the rod lens barrel, the radial positioning structure comprises circumferential positioning surfaces sequentially disposed along a proximal end to a distal end of the rod lens barrel, and the screw connection structure comprises an external screw structure disposed along an outer wall of the rod lens barrel.

5. The catheter endoscope correction device according to claim 3, wherein the rod lens assembly comprises a rod lens barrel and a rod lens group arranged in the rod lens barrel, a sleeve is sleeved outside the rod lens barrel, the radial positioning structure comprises a circumferential positioning surface arranged on the outer wall of the sleeve, the threaded connection structure comprises an external threaded structure arranged on the outer wall of the sleeve, the outer wall of the rod lens barrel is in circumferential positioning fit with the inner wall of the sleeve, and the end part of the rod lens barrel is fixedly connected with the end part of the sleeve.

6. The catheter endoscope correction device according to claim 5, wherein the catheter endoscope further includes a barrel fitted to an end of the barrel, and the radial positioning structure further includes a first circumferential engagement portion provided between an inner wall of the adjustment knob and an outer wall of the barrel.

7. The catheter endoscope correction device according to claim 1, wherein the eyepiece assembly includes an eyepiece barrel and an eyepiece group provided in the eyepiece barrel, a first stepped portion is provided on an outer wall of the eyepiece barrel, and a second stepped portion engaged with the first stepped portion is provided on an inner wall of the adjustment knob.

8. The catheter endoscope correction device according to claim 7, wherein the adjustment knob includes a knob sleeve that is sleeved to the eyepiece barrel and a radial adjustment member that is provided so as to be capable of penetrating the knob sleeve and abutting to the eyepiece barrel, and/or the radial positioning structure includes a second circumferential fitting portion that is provided between the knob sleeve and the eyepiece barrel.

9. The catheter endoscope correction device according to claim 1, wherein the rod mirror assembly includes a rod barrel and a plurality of rod mirrors, the plurality of rod mirrors are disposed inside the rod barrel at intervals in an axial direction of the rod barrel, and/or the eyepiece assembly includes a eyepiece barrel and a plurality of eyepieces, the plurality of eyepieces are disposed inside the eyepiece barrel at intervals in an axial direction of the eyepiece barrel.

10. A catheter endoscope system comprising a catheter endoscope and the catheter endoscope correction device according to any one of claims 1 to 9.