CN219183651U - Suction assembly and endoscope - Google Patents

Abstract

The utility model provides an attraction assembly and an endoscope, and relates to the technical field of medical instruments. The suction assembly includes a valve seat and a suction button. The valve seat comprises an insertion hole with a containing space, and a guide part which is arranged on the periphery of the valve seat and extends upwards along the axial direction of the insertion hole, wherein the guide part comprises a guide groove and a limit groove which are arranged in a staggered manner; the guide groove is provided with a channel communicated with the jack; the attraction button comprises a plug connector and a clamping piece protruding from one end of the plug connector, and when the plug connector is matched with the jack, the clamping piece rotates along the channel to enter the guide groove until abutting against the limit groove. The utility model can solve the problems that the suction assembly on the endoscope in the prior art is easy to separate from the valve seat and the anti-drop effect is poor, and has the effects of effectively preventing the suction button from separating from the valve seat and ensuring the normal use of the suction function.

Description

Suction assembly and endoscope

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an attraction assembly and an endoscope.

Background

Endoscopes are a commonly used medical instrument. Endoscopes are widely used in clinic in different departments and for the treatment of different diseases. Mainly divided into a hose type endoscope (called soft endoscope for short) and a hard tube type endoscope (called hard endoscope for short), wherein the soft endoscope mainly comprises a gastroscope, a enteroscope, a laryngoscope, a bronchoscope and the like; hard scopes include laparoscopes, thoracoscopes, ureteroscopes, cystoscopes, arthroscopes, hysteroscopes, and the like. The endoscope has the structures of an image sensor, an optical lens, light source illumination, a mechanical device and the like, and can enter the stomach through the oral cavity or enter the body through other natural pore canals. The endoscope can be used to see the lesions that cannot be displayed by X-rays, so that it plays a very important role in medical treatment.

The endoscope comprises an operation end, wherein the operation end is provided with an attraction seat and an attraction button, and the attraction button is connected to the attraction seat. The suction button is connected with the suction pump through the connecting pipe, and is a switch for controlling suction, and an operator can suck by pressing the suction button, so that waste liquid is discharged through the forceps pipe and the suction pipe.

The doctor can frequently move the operating end, and frequent movement often easily causes the suction button to drop from the valve seat, so that the endoscope generates air leakage, the normal suction function cannot be performed, the doctor operation is affected, and the diagnosis time is delayed. In order to solve the problem, an improved endoscope is provided in the prior art, and comprises an attraction valve and a valve seat, wherein the attraction valve is limited on the valve seat through a clamping groove structure, a certain anti-drop effect can be achieved, but the attraction valve can be limited in the axial direction, displacement can be caused under the frequent operation of a doctor, and the anti-drop effect is poor.

Disclosure of Invention

The utility model aims to overcome the defects that an attraction assembly on an endoscope in the prior art is easy to separate from a valve seat, has poor anti-falling effect and influences normal use of an attraction function, and provides the attraction assembly and the endoscope.

In order to solve the above problems, an aspect of the present utility model provides a suction assembly including a valve seat and a suction button. The valve seat comprises an insertion hole with a containing space, and a guide part which is arranged on the periphery of the valve seat and extends upwards along the axial direction of the insertion hole, wherein the guide part comprises a guide groove and a limit groove which are arranged in a staggered manner; the guide groove is provided with a channel communicated with the jack; the attraction button comprises a plug connector and a clamping piece protruding from one end of the plug connector, and when the plug connector is matched with the jack, the clamping piece rotates along the channel to enter the guide groove until abutting against the limit groove.

Optionally, the guiding groove and the limiting groove form a limiting step in the circumferential direction of the jack, and the limiting step is used for resisting the clamping piece in the circumferential direction.

Optionally, the spacing groove sets up the accommodation space that is used for placing the joint spare along the axis direction of jack.

Optionally, the limit contour of the accommodating space is matched with the outer contour of the clamping piece, and the size of the limit contour is greater than or equal to the outer contour of the clamping piece.

Optionally, the limiting groove is axially disposed above and/or below the guiding groove.

Optionally, an included angle between the axis of the limiting groove and the axis of the guiding groove is alpha, alpha epsilon (0, 180 degrees).

Optionally, the channel is configured as a notch in communication with the receptacle.

Optionally, the inner wall of jack is equipped with the snap ring, is equipped with round protruding edge on the connector, protruding edge is suitable for with the snap ring butt when joint spare and spacing groove butt.

Optionally, the snap ring includes a main body section and a concave section, and the main body section is disposed on an inner wall of the guide portion; the concave section is concave downwards from the main body section; the convex edge is provided with a convex section matched with the concave section.

In another aspect, the utility model provides an endoscope, comprising an operating handle and the suction assembly according to any one of the above technical schemes, wherein the suction assembly is arranged on the operating handle.

The utility model has the following advantages:

by utilizing the technical scheme of the utility model, the plug of the attraction button is inserted into the jack of the valve seat, and the attraction button is connected to the valve seat; in the process of inserting the plug connector, the clamping piece on the plug connector enters the guide groove through the channel of the guide groove, the plug connector is rotated, so that the clamping piece slides to the limit groove along the guide groove and is clamped in the limit groove; the guide groove and the limit groove are arranged along the dislocation of the jack, so that the limit groove can circumferentially limit the clamping piece.

Drawings

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

FIG. 1 shows a schematic view of a valve seat in a suction assembly provided by an embodiment of the present utility model;

fig. 2 is a schematic structural view of an attraction button in the attraction assembly according to the embodiment of the utility model;

FIG. 3 shows an exploded view of the operative end of an endoscope provided by an embodiment of the present utility model;

FIG. 4 shows a schematic view of the structure with the attraction button separated from the valve seat;

FIG. 5 shows a schematic view of the structure of the suction button when connected to the valve seat;

fig. 6 shows a schematic structural view of three other specific embodiments of the channel, guide groove and limit groove on the valve seat.

Reference numerals illustrate:

1. a valve seat; 11. a jack; 111. a channel; 112. a guide groove; 1121. a first guide edge; 1122. a second guide edge; 113. a limit groove; 1131. a first flange; 1132. a second flange; 1133. a third flange; 114. a clasp; 1141. a main body section; 1142. a recessed section; 2. a suction button; 21. a plug; 211. a clamping piece; 2111. an attraction interface; 212. a convex edge; 2121. a convex section; 3. an operating handle; 4. and (5) connecting pipes.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

For the purpose of illustrating the concepts of the utility model, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.

Example 1

1-6, the suction assembly comprises a valve seat 1 and a suction button 2, wherein the valve seat 1 comprises an insertion hole 11 with a containing space and a guide part which is arranged on the periphery of the valve seat 1 and extends upwards along the axial direction of the insertion hole 11, and the guide part comprises a guide groove 112 and a limit groove 113 which are arranged in a staggered manner; the guide groove 112 is provided with a passage communicating with the insertion hole 11; the suction button 2 comprises a plug connector 21 and a clamping piece 211 protruding from one end of the plug connector 21, and when the plug connector 21 is matched with the jack 11, the clamping piece 211 rotates along the channel to enter the guide groove 112 until abutting against the limit groove 113.

Specifically, the guide groove 112 is adapted to guide the attraction button 2 to rotate in the circumferential direction of the insertion hole 11; the guide groove 112 and the limit groove 113 are arranged in a staggered manner along the axial direction of the jack 11; the clamping piece 211 is suitable for entering the guide groove 112 through the channel 111 and rotating along with the guide groove 112 to be clamped in the limiting groove 113.

By utilizing the technical scheme of the utility model, the plug-in connector 21 of the suction button 2 is inserted into the plug hole 11 of the valve seat 1, and the suction button 2 is connected to the valve seat 1; in the plugging process of the plug connector 21, the clamping piece 211 on the plug connector 21 enters the guide groove 112 through the channel 111, the plug connector 21 is rotated, the clamping piece 211 slides to the position of the limit groove 113 along the guide groove 112 and is clamped in the limit groove 113, and the clamping piece 211 can be guided to rotate along the circumferential direction of the jack 11 by the guide groove 112 due to the fact that the clamping piece 211 enters the guide groove 112, and therefore the guide groove 112 can play an axial limit role on the clamping piece 211; because the limiting groove 113 and the guide groove 112 are arranged in a staggered manner along the axial direction of the jack 11, the limiting groove 113 can limit the clamping piece 211 in the circumferential direction, and the suction assembly provided by the utility model can effectively prevent the suction button 2 from being separated from the valve seat 1, so that the air tightness of the endoscope can not be leaked due to the falling of the suction button 2 in the use process of a doctor, the normal use of the suction function is ensured, and the stability of operation is also ensured.

Optionally, the guide groove 112 and the limit groove 113 form a limit step in the circumferential direction of the jack 11, so as to form a circumferential abutment for the clamping piece 211. Specifically, the clamping piece 211 enters the guide groove 112 through the channel 111 until the limiting groove 113 is blocked, and the clamping piece 211 is completely positioned along the axial direction and the radial direction.

Alternatively, the limiting groove 113 is provided with an accommodating space for accommodating the clamping member 211 along the axial direction of the insertion hole 11. Specifically, the accommodating space is used for limiting the clamping piece 211 along the axial direction of the jack 11. The size of the accommodating space is matched with the size of the clamping piece 211; alternatively, the dimension of the accommodation space in the circumferential direction is greater than or equal to the diameter of the clip 211. Preferably, the clamping member 211 can be completely clamped in the accommodating space. At this time, the clamping piece 211 enters the guide groove 112 through the channel 111 until the clamping piece 211 is completely buckled with the limiting groove 113 to resist limiting, so that the clamping piece 211 is completely positioned along the axial direction and along the radial direction.

Optionally, the limit profile of the accommodating space is adapted to the outer profile of the clamping piece 211, and the size of the limit profile is greater than or equal to the outer profile of the clamping piece 211.

Alternatively, the channel is configured as a notch in communication with the receptacle 11.

Optionally, the included angle between the axis of the limiting groove 113 and the axis of the guiding groove 112 is α, α∈ (0, 180 °). In this way, the guide groove 112 and the stopper groove 113 are offset, and the stopper 211 can be limited in the circumferential direction and the axial direction.

Alternatively, in the present embodiment, the guide groove 112 extends along the circumferential direction of the insertion hole 11, and the limit groove 113 extends along the axial direction of the insertion hole 11, that is, the length extending direction of the guide groove 112 and the length extending direction of the limit groove 113 are in a substantially perpendicular positional relationship. Of course, in some other embodiments, the length extending direction of the guiding slot 112 and the length extending direction of the limiting slot 113 may not be perpendicular, as shown in fig. 6.

Optionally, the limiting groove 113 is disposed above and/or below the guiding groove 112 along the axial direction. In this embodiment, the limiting groove 113 is disposed below the guiding groove 112 along the axial direction of the insertion hole 11. As shown in fig. 1 and 6. Specifically, referring to fig. 1, the guide groove 112 has a first guide edge 1121 and a second guide edge 1122 that are disposed in this order along the insertion direction of the plug 21, the passage 111 is provided on the first guide edge 1121, the stopper groove 113 is provided on the second guide edge 1122, and the stopper groove 113 is recessed downward from the second guide edge 1122 in the axial direction of the plug 11.

Alternatively, the guiding portion may be made of an elastic material, and when the limiting groove 113 is axially disposed above the guiding groove 112, the side wall of the limiting groove 113 is buckled to form a blocking portion, and the clamping piece 211 may be pressed upward against the side wall of the limiting groove 113 to deform and finally be clamped in the limiting groove 113.

Optionally, referring to fig. 1, the limiting groove 113 includes a first flange 1131 and a second flange 1132 connected with the guiding groove 112; the first and second flanges 1131 and 1132 extend in the circumferential direction of the insertion hole 11. After the clamping piece 211 is clamped into the limiting groove 113, the first flange 1131 and the second flange 1132 are abutted against the side wall of the clamping piece 211, so that circumferential limiting can be formed on the clamping piece 211, circumferential displacement of the clamping piece 211 is prevented, and the risk that the attraction button 2 falls off from the valve seat 1 is reduced. When the engaging member 211 is engaged in the limiting groove 113, refer to fig. 5.

Optionally, referring to fig. 1, the limiting groove 113 further includes a third rib 1133 disposed between the first rib 1131 and the second rib 1132, and a limiting profile formed by the first rib 1131, the second rib 1132 and the third rib 1133 is adapted to an outer profile of the clamping member 211. When the clamping piece 211 is clamped in the limiting groove 113, the outer wall of the clamping piece 211 is simultaneously abutted against the first flange 1131, the second flange 1132 and the third flange 1133. The contact of the third flange 1133 is added between the clamping piece 211 and the limiting groove 113, and the third flange 1133 can support the clamping piece 211, so that the clamping piece 211 is connected with the limiting groove 113 more firmly.

Referring to fig. 1, the channel 111, the guide groove 112 and the limit groove 113 are all communicated with each other and are all communicated with the insertion hole 11. The channel 111, the guide groove 112 and the limit groove 113 form a detour path, so that the pull-out button 2 can be effectively prevented from falling out.

Optionally, the third flange 1133 is parallel to the second guide edge 1122.

Referring to fig. 1, the guide groove 112 is a straight groove, the first guide edge 1121 and the second guide edge 1122 extend along the circumferential direction of the insertion hole 11, in this embodiment, the first guide edge 1121 and the second guide edge 1122 are parallel, and the second guide edge 1122 and the third stop edge 1133 of the limiting groove 113 are parallel, so that the first guide edge 1121 and the third stop edge 1133 form a relative positional relationship in the axial direction of the insertion hole 11, and therefore, the first guide edge 1121 and the third stop edge 1133 can limit the axial direction of the fastening member 211, so as to prevent the fastening member 211 from falling out.

According to the utility model, through the matching of the guide groove 112 and the limiting groove 113, the valve seat 1 can limit the suction button 2 in two directions of the circumferential direction and the axial direction, and even under the action of frequent operation and traction of doctors, the suction button 2 can be effectively prevented from falling out of the valve seat 1, so that the anti-falling effect is good, and the normal use of the suction function of an endoscope is ensured.

Optionally, the side surface of the clamping piece 211 is a circumferential surface, and the width of the channel 111 is not smaller than the diameter of the clamping piece 211. Specifically, referring to fig. 2, the clamping member 211 includes an attraction interface 2111, and the attraction interface 2111 is adapted to be clamped in the limiting groove 113; the limit profile formed by the first flange 1131, the second flange 1132 and the third flange 1133 is matched with the outer profile of the suction interface 2111. The suction port 2111 is used for attaching a connection pipe 4, and a suction pump is connected to the connection pipe 4.

Specifically, in this embodiment, the outer side surface of the suction interface 2111 is a circumferential surface; the first flange 1131 and the second flange 1132 are both arc-shaped, and the first flange 1131 and the second flange 1132 are respectively and smoothly connected with the third flange 1133. Therefore, when the suction interface 2111 is clamped into the limit groove 113, the outer side wall of the suction interface 2111 is matched with the limit groove 113, so that the connection between the clamping piece 211 and the limit groove 113 is more stable, and the anti-falling effect is further improved.

Referring to fig. 6, three other embodiments of the channel 111, guide slot 112 and limiting slot 113 are provided in fig. 6.

In a second embodiment, shown at 6-1 in fig. 6, the guide groove 112 is a straight groove, and the length of the guide groove extends at an angle to the axial direction of the insertion hole 11, i.e., is inclined.

A third embodiment is shown at 6-2 in fig. 6, where the guide slot 112 has a single bend.

A fourth embodiment is shown at 6-3 in fig. 6, where the guide slot 112 has a two-stage bend.

Of course, other embodiments are possible.

Alternatively, referring to fig. 1 in combination with fig. 2, the inner wall of the jack 11 is provided with a snap ring 114, and the plug 21 is provided with a ring of protruding edges 212, the protruding edges 212 being adapted to abut the snap ring 114 when the plug 21 is inserted into the jack 11. When the flange 212 abuts against the snap ring 114 during the process of inserting the plug 21 into the jack 11, the plug 21 is resistant to downward movement at this time, which indicates that the plug 21 is inserted into place. During plugging, the suction interface 2111 of the clamping piece 211 is aligned with the channel 111, the suction interface 2111 is moved down to the suction interface 2111 to enter the guide groove 112, the suction button 2 is rotated along the path of the guide groove 112 until the suction interface 2111 is aligned with the limit groove 113, at this time, the rotation of the suction button 2 is stopped, the suction button 2 moves down, the suction interface 2111 is clamped into the limit groove 113, the bottom of the suction interface 2111 is abutted with the third flange 1133, at this time, the convex edge 212 on the suction button 2 is also abutted with the clamping ring 114, and the connection between the suction button 2 and the valve seat 1 is completed.

When the suction button 2 needs to be detached, in the state shown in fig. 5, the suction button 2 is pulled up, the suction port 2111 is separated from the limit groove 113 and enters the guide groove 112, the suction button 2 is rotated reversely along the guide groove 112, the suction port 2111 reaches the channel 111, and at this time, the suction button 2 is pulled up, so that the state shown in fig. 4 is obtained.

Optionally, in this embodiment, referring to fig. 1, the snap ring 114 includes a main body section 1141 and a recess section 1142, where the main body section 1141 is disposed on an inner wall of the guide part, and specifically, the main body section 1141 is disposed on an inner wall between the third flange 1133 and the second guide edge 1122; the recessed section 1142 is recessed from the main body section 1141 down to flush with the third flange 1133; referring to fig. 2, male lip 212 is provided with male section 2121 that mates with female section 1142.

Specifically, the recessed segment 1142 is aligned with the limiting groove 113.

Specifically, referring to fig. 2, in this embodiment, the concave section 1142 has a trapezoid groove structure, and the outer contour of the convex section 2121 is trapezoid adapted thereto.

Example 2

An endoscope, referring to fig. 3 to 5, includes an operation handle 3, and the suction unit described in embodiment 1 is provided on the operation handle 3.

Optionally, the endoscope further comprises a connection tube 4 connected to the suction port 2111, and the connection tube 4 is connected to a suction pump.

Specifically, in this embodiment, the endoscope is a bronchoscope.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An attraction assembly, comprising:

the valve seat (1) comprises an insertion hole (11) with a containing space and a guide part which is arranged on the periphery of the valve seat (1) and extends upwards along the axial direction of the insertion hole (11), wherein the guide part comprises a guide groove (112) and a limit groove (113) which are arranged in a staggered manner; the guide groove (112) is provided with a channel (111) communicated with the jack (11);

the attraction button (2) comprises a plug connector (21) and a clamping piece (211) protruding from one end of the plug connector (21), wherein when the plug connector (21) is matched with the jack (11), the clamping piece (211) rotates along the channel (111) to enter the guide groove (112) until abutting against the limit groove (113).

2. The suction assembly as claimed in claim 1, characterized in that the guide groove (112) and the limit groove (113) form a limit step in the circumferential direction of the insertion hole (11) for circumferential abutment of the clamping piece (211).

3. The suction assembly according to claim 1, wherein the limit groove (113) is provided with a receiving space for placing the clip (211) along the axial direction of the insertion hole (11).

4. A suction assembly according to claim 3, characterized in that the limit profile of the receiving space is adapted to the outer profile of the clamping piece (211), the limit profile being of a size greater than or equal to the outer profile of the clamping piece (211).

5. The suction assembly as claimed in any one of claims 1-4, characterized in that the limit groove (113) is arranged axially above and/or below the guide groove (112).

6. The suction assembly, as set forth in claim 5, characterized in that the angle between the axis of the limit slot (113) and the axis of the guide slot (112) is α, α e (0, 180 °).

7. The suction assembly, as set forth in any of claims 1-4, characterized in that the channel is configured as a notch in communication with the receptacle (11).

8. The suction assembly according to claim 6, wherein a snap ring (114) is provided on the inner wall of the insertion hole (11), a circle of protruding edge (212) is provided on the plug connector (21), and the protruding edge (212) is suitable for abutting against the snap ring (114) when the clamping piece (211) abuts against the limiting groove (113).

9. The suction assembly, as set forth in claim 8, characterized in that the snap ring (114) comprises a body section (1141) and a recessed section (1142), the body section (1141) being provided on an inner wall of the guide; the recessed section (1142) is recessed downwardly from the body section (1141); the male edge (212) is provided with a male section (2121) which cooperates with the female section (1142).

10. An endoscope, characterized by comprising an operating handle (3), and an aspiration assembly according to any one of claims 1-9, said aspiration assembly being provided on said operating handle (3).

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