CN219021113U

CN219021113U - Flow guide piece, lens mounting seat, front end module and endoscope

Info

Publication number: CN219021113U
Application number: CN202222876757.XU
Authority: CN
Inventors: 刘驰; 潘广
Original assignee: Hunan Vathin Medical Instrument Co Ltd
Current assignee: Hunan Vathin Medical Instrument Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-05-16
Anticipated expiration: 2032-10-31

Abstract

The utility model is applicable to the technical field of endoscopes, and provides a guide piece, a lens mounting seat, a front end module and an endoscope, wherein the guide piece comprises a baffle part, the baffle part comprises a first guide part and a second guide part which are integrally arranged, the second guide part is convexly arranged at two sides of the first guide part along a preset direction, so that the baffle part forms a concave sheet-shaped guide structure, and the tail end of the baffle part forms an open notch; and the installation part is convexly arranged at one end of the baffling part along the preset direction and is integrally formed with the baffling part. In the utility model, the flow guide piece is arranged at the far end of the seat body, and the baffle part of the flow guide piece is arranged at the far end of the flow guide channel communicated with the infusion tube, so that the flow is deflected through the baffle part after the liquid passes through the flow guide channel and passes through the nozzle at the far end of the flow guide channel.

Description

Flow guide piece, lens mounting seat, front end module and endoscope

Technical Field

The utility model belongs to the technical field of endoscopes, and relates to a guide piece, a lens mounting seat, a front end module and an endoscope.

Background

The endoscope is used as medical detection equipment, enters the human body through a natural duct of the human body or a small incision made by operation, and is guided into a pre-checked organ or a natural cavity when in use, and directly peeps on pathological features of related parts.

In the clinical use process of the endoscope, because tissue fluid in a human body can be attached to the front end lens of the endoscope, the imaging quality of the endoscope is reduced, a liquid guide tube is arranged in an insertion part of the endoscope in the prior art, and a nozzle of the liquid guide tube is arranged at the far end of the insertion part and is used for spraying cleaning fluid to the lens to achieve the purpose of cleaning the lens. However, when the size of the insertion portion is required to be reduced to accommodate a smaller working environment, the size of the catheter is required to be reduced simultaneously, and when the size of the catheter is reduced to some extent, the nozzle at the distal end of the catheter is difficult to process.

Disclosure of Invention

The object of the utility model is to provide a deflector comprising:

the baffle part comprises a first flow guiding part and a second flow guiding part which are integrally arranged, the second flow guiding part is convexly arranged on two sides of the first flow guiding part along a preset direction, the baffle part forms a concave sheet-shaped flow guiding structure, and the tail end of the baffle part forms an open notch;

and the installation part is convexly arranged at one end of the baffling part along the preset direction and is integrally formed with the baffling part.

Preferably, the baffle is configured as an expanding structure expanding toward the notch direction, or as a choke structure contracting toward the notch direction.

Preferably, the mounting part comprises a strip-shaped member and a side wing, and the side wing is convexly arranged on the side wall of the strip-shaped member.

The utility model also provides a lens mounting base, comprising:

the base body is provided with a diversion channel in a penetrating way, and the diversion channel is used for communicating with the infusion tube;

a lens mounting part, which is positioned on the end face of the far end of the seat body;

the baffle part of the guide piece is covered on the far end opening of the guide channel, a nozzle structure which sprays towards the notch direction is formed, and the lens mounting part is positioned in the downstream area of the nozzle in the spraying direction.

Preferably, the base is provided with a mounting groove for mounting the flow guide member, and the projection of the flow guide member along the axis direction of the base is located in an area surrounded by the mounting groove.

Preferably, the installation groove comprises a first groove part positioned on the far end surface of the seat body and a second groove part positioned on the circumferential direction of the seat body, and the baffle part and the installation part are respectively installed on the first groove part and the second groove part.

Preferably, the lens mounting portion is protruding on a distal end surface of the base.

Preferably, the proximal end of the base body is provided with a plurality of extending portions protruding in the axial direction of the base body, and a wire harness accommodating area is formed between at least two extending portions and in a region extending in the circumferential direction of the two extending portions.

The utility model also provides an endoscope front-end module, which comprises the lens mounting seat and a lens, wherein the far-end surface of the lens is convexly arranged at the far end of the lens mounting part.

The utility model further provides an endoscope, which comprises the endoscope front end module.

The beneficial effects are that:

1. in the utility model, the flow guide piece is arranged at the far end of the seat body, and the baffle part of the flow guide piece is arranged at the far end of the flow guide channel communicated with the infusion tube, so that the flow is deflected through the baffle part after the liquid passes through the flow guide channel and passes through the nozzle at the far end of the flow guide channel.

2. In the utility model, the far end surface of the lens is convexly arranged at the far end of the lens mounting part, so that fluid flowing out from the nozzle jet flows against the far end surface of the lens, and attachments attached to the far end surface of the lens can be directly washed out; in an alternative embodiment, the lens mounting portion may also be convexly disposed on the distal end surface of the base, so that the liquid after being sprayed through the nozzle flushes the lens may be guided out from two sides of the lens mounting portion, and further, contamination of the lens by the cleaned liquid is avoided.

3. In the utility model, when the baffle part is configured into an expansion structure expanding towards the notch direction, and the shape of the first groove part is matched with that of the baffle part, after the baffle part is embedded into the mounting groove, the baffle part and the seat body are clamped and fixed, so that the baffle part is not easy to separate from the seat body, and the stable mounting between the baffle part and the seat body is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the embodiments of the present utility model or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a three-dimensional structure of a baffle provided by an embodiment of the present utility model;

FIG. 2 is a first side view of a baffle provided by an embodiment of the present utility model;

FIG. 3 is a second side view of a baffle provided by an embodiment of the present utility model;

FIG. 4 is a first schematic view of a baffle mounted to a seat according to an embodiment of the present utility model;

fig. 5 is a schematic view of an internal structure of a base according to an embodiment of the present utility model;

FIG. 6 is a second schematic view of a baffle mounted to a base according to an embodiment of the present utility model;

FIG. 7 is a third schematic view of a baffle mounted to a seat according to an embodiment of the present utility model;

FIG. 8 is a fourth schematic view of a baffle mounted to a seat according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a structure of a jacket layer sleeved outside a seat according to an embodiment of the present utility model;

fig. 10 is a schematic view of a wire harness accommodation area formed between extending portions of a base provided in an embodiment of the present utility model.

In the attached drawings, 10, a seat body; 100. a diversion channel; 101. a second groove portion; 102. a mounting part; 11. a baffle part; 111. a side wing; 11a, a notch; 11b, a second diversion part; 11c, a first diversion part; 11d, a bar-shaped member; 12. a lens; 13. a lens mounting section; 14. a light guide column; 141. an optical fiber; 15. an extension; 150. a harness accommodating area; 16. a first groove portion; 30. an infusion tube; 20. and a jacket layer.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the utility model. The elements and arrangements described in the following specific examples are presented for purposes of brevity and are provided only as examples and are not intended to limit the utility model.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

In addition, in the utility model, the 'near end' and the 'far end' are far and near positions of the structure relative to human body operation under the use environment, so that the description of the position relationship among the components is convenient, and meanwhile, the understanding is convenient; for the same component, "proximal" and "distal" are relative positional relationships of the component, not absolute; accordingly, it should be understood from the perspective of implementing the principles of the present utility model without departing from the spirit of the utility model.

Referring to fig. 1 and 2, the present utility model provides a flow guiding member, which includes:

the baffle part 11, wherein the baffle part 11 comprises a first flow guiding part 11c and a second flow guiding part 11b which are integrally arranged, the second flow guiding part 11b is convexly arranged at two sides of the first flow guiding part 11c along a preset direction, so that the baffle part 11 forms a concave sheet-shaped flow guiding structure, and the tail end of the baffle part 11 forms an open notch 11a;

continuing to refer to fig. 1, the present guide member further includes an installation portion 102, where the installation portion 102 is convexly disposed at one end of the baffle portion 11 along the preset direction, and is integrally formed with the baffle portion 11. The installation portion 102 is protruded at one end of the baffle portion 11 along the preset direction, where the protruded direction along the preset direction means that the protruded direction of the installation portion 102 is substantially identical to the protruded direction of the second guide portion 11b, that is, the second guide portion 11b and the installation portion 102 are both located at one side of the first guide portion 11 c.

In an alternative embodiment, the baffle 11 is configured to be in an expanded configuration expanding toward the recess 11a, as shown in fig. 1 and 3, and when configured in the expanded configuration, the fluid guided by the baffle 11 may be ejected along the expanded configuration, forming a relatively wider ejection range than the tube, and a wider coverage area; or the baffle 11 is configured as a choke structure which is tightened toward the notch 11a, when the choke structure is provided, the cross-sectional area of the fluid guided by the baffle 11 at the notch 11a is the smallest, so that the flow velocity of the fluid is increased after passing through the choke structure, and the impact force is larger; alternatively, the baffle 11 is configured as a straight flow guiding structure that neither expands nor contracts.

As shown in fig. 1 and 2, the mounting portion 102 includes a bar-shaped member 11d and a side wing 111, and the side wing 111 is protruded from a side wall of the bar-shaped member 11 d.

Further; referring to fig. 4 to 8, the present utility model further provides a lens 12 mounting base, including: the infusion device comprises a base body 10, wherein a diversion channel 100 is arranged on the base body 10 in a penetrating way, and the diversion channel 100 is used for communicating an infusion tube 30; a lens mount 13, the lens mount 13 being located at a distal end face of the housing 10; the baffle 11 of the deflector is disposed at the distal end of the deflector channel 100, and a nozzle structure is formed to spray toward the recess 11a, and the lens mount 13 is disposed at the downstream area of the nozzle in the spray direction. It should be noted that, through experiments, when the size of the infusion tube 30 is smaller, it is very difficult to set a bent nozzle structure at the front end of the infusion tube 30, because the limitation of the external size of the infusion tube 30 is not affected, the normal flow of the liquid in the infusion tube 30 is not affected, the wall thickness of the infusion tube 30 is necessarily reduced, however, the wall thickness of the infusion tube 30 is reduced, the strength of the material is reduced, bending is easily caused at the turning place, and the circulation channel of the infusion tube 30 is closed after bending, thereby affecting the function of the infusion tube 30 for delivering the liquid. The present utility model is to solve the above problems by providing a baffle member at the distal end of the housing 10, the baffle portion 11 of the baffle member being provided to cover the distal end of the baffle channel 100 communicating with the infusion tube 30, so that when the liquid passes through the baffle channel 100 and is sprayed from the distal end nozzle thereof, the fluid is turned by the baffle portion 11, specifically, the fluid is sprayed from the nozzle shown in fig. 7, thereby flushing the lens 12 located in the downstream direction thereof, specifically, the lens 12 is mounted on the lens mounting portion 13 of the housing 10, and the distal end surface of the lens 12 is protruded at the distal end of the lens mounting portion 13, so that the fluid sprayed from the nozzle will impact the distal end surface of the lens 12, and the attachments attached to the distal end surface of the lens 12 can be directly flushed out; in an alternative embodiment, the lens mounting portion 13 may also be disposed on the distal end surface of the base 10 in a protruding manner, so that the liquid sprayed from the nozzle flushes the lens 12 and then flows out from two sides of the lens mounting portion 13, thereby further avoiding the cleaned liquid from polluting the lens 12.

Referring to fig. 6, the base 10 is provided with a mounting groove for mounting the guide member, so as to facilitate the mounting of the guide member; in addition, the projection of the guide member along the axial direction of the seat body 10 is located in the area surrounded by the installation groove, that is, the guide member will not be protruded on the outer periphery of the seat body 10 along the radial direction of the seat body 10 after the guide member is installed in the installation groove, so as to ensure that the outer periphery of the seat body 10 is in a smooth state, and as shown in fig. 9, an outer cover layer 20 is coated on the outer side of the seat body 10, and a smooth surface is formed after the outer cover layer 20 wraps the seat body 10. In addition, in an alternative embodiment, the installation groove comprises a first groove part 16 positioned on the distal end surface of the base 10 and a second groove part 101 positioned on the circumferential direction of the base 10, and the baffle part 11 and the installation part 102 are respectively installed on the first groove part 16 and the second groove part 101, and in an alternative embodiment, the first groove part 16 and the second groove part 101 are communicably arranged. The outer sleeve 20 can bind the mounting part 102 of the flow guide member, so that the mounting part 102 is forced to be arranged in the second groove part 101, the flow guide member is prevented from being separated along the radial direction of the seat body 10, and meanwhile, the side wings 111 of the mounting part 102 are accommodated in the second groove part 101, so that the flow guide member is prevented from being separated along the axial direction of the seat body 10 under the impact of fluid.

Referring to fig. 10, a plurality of extending portions 15 are protruded from the proximal end of the base 10 along the axial direction of the base 10, and a wire harness accommodating area 150 is formed between at least two extending portions 15 and in a region extending circumferentially of the extending portions 15. It should be noted that, in this embodiment, the space utilization of the seat 10 can be effectively improved by disposing the wire harness in the wire harness accommodation area 150 formed between the two extending portions 15, and the wire harness in the prior art is usually accommodated in the annular area surrounded by the seat 10, which necessarily results in low space utilization. In an alternative embodiment of the present utility model, the wire harness is an optical fiber 141 connected to the light guide column 14, or a wire connected to the LED light source, which is not particularly limited herein.

The utility model also provides an endoscope front-end module, which comprises the lens 12 mounting seat and the lens 12, wherein the far-end surface of the lens 12 is convexly arranged at the far end of the lens mounting part 13.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A baffle, comprising:

the baffle part (11), the baffle part (11) comprises a first flow guiding part (11 c) and a second flow guiding part (11 b) which are integrally arranged, the second flow guiding part (11 b) is convexly arranged at two sides of the first flow guiding part (11 c) along a preset direction, the baffle part (11) forms a concave sheet-shaped flow guiding structure, and the tail end of the baffle part (11) forms an open notch (11 a);

and the mounting part (102) is convexly arranged at one end of the baffling part (11) along the preset direction, and is integrally formed with the baffling part (11).

2. A baffle according to claim 1, wherein: the baffle (11) is configured as an expanding structure expanding toward the recess (11 a), or the baffle (11) is configured as a choke structure tightening toward the recess (11 a).

3. A baffle according to claim 1, wherein: the mounting part (102) comprises a strip-shaped member (11 d) and a side wing (111), wherein the side wing (111) is convexly arranged on the side wall of the strip-shaped member (11 d).

4. A lens mount, comprising:

the infusion device comprises a base body (10), wherein a diversion channel (100) is penetrated and arranged on the base body (10), and the diversion channel (100) is used for communicating an infusion tube (30);

a lens mounting portion (13), wherein the lens mounting portion (13) is positioned on the distal end face of the base body (10);

a baffle portion (11) of the baffle member according to any one of claims 1 to 3 is provided to cover a distal end opening of the baffle passage (100) and forms a nozzle structure for ejecting toward the recess (11 a), and the lens mounting portion (13) is located in a downstream region of the nozzle in the ejection direction.

5. The lens mount of claim 4, wherein: the installation groove for installing the flow guide piece is formed in the base body (10), and the projection of the flow guide piece along the axis direction of the base body (10) is located in an area surrounded by the installation groove.

6. The lens mount of claim 5, wherein: the installation groove comprises a first groove part (16) positioned on the far end surface of the base body (10) and a second groove part (101) positioned on the circumferential direction of the base body (10), and the baffle part (11) and the installation part (102) are respectively installed on the first groove part (16) and the second groove part (101).

7. The lens mount of claim 4, wherein: the lens mounting part (13) is convexly arranged on the far end face of the base body (10).

8. The lens mount of claim 4, wherein: the proximal end of the base body (10) is convexly provided with a plurality of extending parts (15) along the axial direction of the base body (10), and a wire harness accommodating area (150) is formed between at least two extending parts (15) and in the area extending in the circumferential direction of the two extending parts (15).

9. An endoscope front end module, its characterized in that: comprising the lens mount of any one of claims 4 to 8 and a lens (12), a distal end face of the lens (12) protruding from a distal end of the lens mount (13).

10. An endoscope, characterized in that: comprising the front end module of claim 9.