CN216569866U

CN216569866U - Endoscope suction valve, suction valve assembly and endoscope

Info

Publication number: CN216569866U
Application number: CN202123085225.6U
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: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-24
Anticipated expiration: 2031-12-09

Abstract

The utility model is suitable for the technical field of endoscopes, and provides an endoscope suction valve, a suction valve assembly and an endoscope, wherein the endoscope suction valve comprises an inner valve body and an outer valve body, the inner valve body is arranged in the outer valve body, and the inner valve body is detachably connected with the outer valve body; the outer wall of the inner valve body is provided with a first positioning piece, the inner wall of the inner valve body is provided with a first positioning part, and the first positioning piece is clamped and matched with the first positioning part and used for positioning the circumferential direction of the inner valve body; the outer wall of the inner valve body is provided with a second positioning part, the inner wall of the outer valve body is provided with a second positioning part, and the second positioning part is in clamping fit with the second positioning part and used for axially positioning the inner valve body. According to the utility model, the suction valve is arranged as the inner valve body and the outer valve body, and the inner valve body and the outer valve body are detachably mounted, so that the maintenance is convenient.

Description

Endoscope suction valve, suction valve assembly and endoscope

Technical Field

The utility model relates to the technical field of endoscopes, in particular to an endoscope suction valve, a suction valve assembly and an endoscope.

Background

In the technical field of endoscopes, an suction valve is mounted on an endoscope, the suction valve is matched with the endoscope for use, when tissue fluid at a pathological change position of a patient needs to be extracted through the endoscope, the tissue fluid is extracted by pressing the suction valve, and then the details of the patient are further obtained through examination and analysis of the tissue fluid.

Among the prior art, the suction valve includes interior valve body and outer valve body usually, the air vent has been seted up on interior valve body and the outer valve body, be used for interacting with external air, it is smooth and easy for making the suction valve to communicate with external air, require the air vent on the interior valve body and the air vent on the outer valve body to align to set up, generally with interior valve body and the integrative setting of outer valve body, but when interior valve body and outer valve body are not integrative to set up, the condition of misalignment appears easily in the air vent of interior valve body and the air vent of outer valve body, the condition of unsmooth can appear when extracting tissue liquid, and be difficult to the location.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an endoscope suction valve, a suction valve assembly and an endoscope, which are used for solving the technical problems in the prior art and mainly comprise the following three aspects:

the utility model provides an endoscope suction valve in a first aspect, which comprises an inner valve body and an outer valve body, wherein the inner valve body is arranged in the outer valve body, and the inner valve body is detachably connected with the outer valve body;

the outer wall of the inner valve body is provided with a first positioning piece, the inner wall of the inner valve body is provided with a first positioning part, and the first positioning piece is clamped and matched with the first positioning part and used for positioning the circumferential direction of the inner valve body;

the outer wall of the inner valve body is provided with a second positioning part, the inner wall of the outer valve body is provided with a second positioning part, and the second positioning part is in clamping fit with the second positioning part and used for axially positioning the inner valve body.

Furthermore, the first positioning piece is a positioning lug which is arranged along the axial direction of the inner valve body and used for positioning the circumferential direction of the inner valve body.

Furthermore, the second positioning piece is an annular protrusion, and the annular protrusion is annularly arranged along the circumferential direction of the inner valve body and is used for positioning the axial direction of the inner valve body.

Further, the surface of the annular bulge is an arc surface.

Further, the material of the annular protrusion is an elastic material.

Further, the first positioning portion is provided as a positioning groove for accommodating the positioning projection.

Furthermore, the second positioning part is an annular groove and is used for being matched with the annular protrusion to realize axial positioning of the inner valve body.

Furthermore, a through hole is formed in the inner valve body, and the inner valve body is communicated with the communicating hole in the outer valve body and is used for being communicated with the outside.

A second aspect of the utility model provides an endoscope suction valve assembly comprising a suction button and a suction valve as described in the first aspect, the suction button being detachably mounted on the suction valve.

A third aspect of the present invention provides an endoscope comprising an insertion section and a handle section, the handle section being provided with an endoscope suction valve assembly as described in the second aspect.

Compared with the prior art, the utility model at least has the following technical effects:

(1) in the prior art, an endoscope suction valve is usually arranged integrally, and when one place of the suction valve is damaged, the whole suction valve needs to be replaced, so that the maintenance cost is high; in the embodiment, the suction valve is arranged as the inner valve body and the outer valve body, and the inner valve body and the outer valve body are detachably mounted, so that the suction valve is convenient to maintain, only damaged parts need to be replaced, and the whole suction valve does not need to be replaced; after the suction valve is set to be detachable, since the inner valve body and the outer valve body of the suction valve need to interact with the external environment, the through hole formed in the inner valve body and the communication hole formed in the outer valve body need to be in a coaxial alignment state all the time.

(2) According to the utility model, the positioning lug arranged on the outer wall of the inner valve body and the positioning groove arranged on the inner wall of the outer valve body are in connection fit with each other, so that the inner valve body is positioned in the circumferential direction, the through hole and the communicating hole are guided to be aligned, and the through hole and the communicating hole are limited in the circumferential direction.

(3) According to the utility model, the annular bulge arranged on the outer wall of the inner valve body is in clamping fit with the annular groove arranged on the inner wall of the outer valve body, so that the inner valve body is limited in the axial direction, the through hole and the communicating hole are axially positioned, the alignment of the through hole and the communicating hole in the axial direction is ensured, the material of the annular bulge is made into an elastic material, the annular bulge is tightly connected with the annular groove, and the sealing property of the suction valve is improved.

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 in 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 it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view showing the construction of an endoscope suction valve according to the present invention;

FIG. 2 is a schematic structural view of a first positioning member and a second positioning member of the inner valve body according to the present invention;

FIG. 3 is a schematic view of a through hole structure of the inner valve body according to the present invention;

FIG. 4 is a schematic view of the outer valve body of the present invention;

FIG. 5 is a cross-sectional view of the outer valve body of FIG. 4 taken along the direction A-A;

FIG. 6 is a schematic view of the structure of the suction valve assembly of the present invention;

fig. 7 is a sectional view taken along the direction B-B of the suction valve assembly in fig. 5.

In the figure, 1-endoscope suction valve; 10-an inner valve body; 101-a first locator; 102-a second positioning element; 103-a through hole; 20-an outer valve body; 201-a first positioning portion; 202-a second location section; 203-communicating hole; 2-attract button.

Detailed Description

The following description provides many different embodiments, or examples, for implementing different features of the utility model. The particular examples set forth below are illustrative only and are not intended to be limiting.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, it is only for convenience of describing the present invention and simplifying the description, but it is not necessary to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, it should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

The first embodiment is as follows:

as shown in fig. 1, 2, 3, 4, and 5, an endoscope suction valve according to an embodiment of the present invention includes an inner valve body 10 and an outer valve body 20, wherein the inner valve body 10 is installed in the outer valve body 20, and the inner valve body 10 is detachably connected to the outer valve body 20;

a first positioning piece 101 is arranged on the outer wall of the inner valve body 10, a first positioning part 201 is arranged on the inner wall of the outer valve body 20, and the first positioning piece 101 is in clamping fit with the first positioning part 201 and used for positioning the circumferential direction of the inner valve body 10;

the outer wall of the inner valve body 10 is provided with a second positioning part 102, the inner wall of the outer valve body 20 is provided with a second positioning part 202, and the second positioning part 102 is in clamping fit with the second positioning part 202 and used for axially positioning the inner valve body 10.

In the above scheme, the suction valve comprises an inner valve body 10 and an outer valve body 20, the inner valve body 10 is detachably mounted in the outer valve body 20, the suction valve is relatively easy to mount in a detachable mode, and when one of the inner valve body 10 and the outer valve body 20 needs to be checked, only the damaged part or the part needing to be checked can be replaced.

The detachable connection between the inner valve body 10 and the outer valve body 20 may be achieved by a threaded connection or a clamping connection, and is not limited herein, and in addition, other manners of detachable connection between the inner valve body 10 and the outer valve body 20 may be achieved.

Preferably, in the present embodiment, the inner valve body 10 and the outer valve body 20 are connected by a snap-fit connection.

Specifically, set up first setting element 101 (circumference setting element) on the interior valve body 10 outer wall, outer valve body 20 inner wall is provided with first setting element 201 in the position that corresponds with first setting element 101, when installing interior valve body 10 in outer valve body 20, first setting element 101 with first setting element 201 carries out the joint, comes the rotation of restriction interior valve body 10 in outer valve body 20 middle and circumference direction, when taking place relative rotation between interior valve body 10 and the outer valve body 20 in circumference, the through-hole 103 on the interior valve body 10 with the intercommunicating pore 203 on the outer valve body 203 takes place rotatory dislocation, makes the suction valve can not exchange with external environment, or the suction valve is not enough with external environment traffic, further leads to the suction tissue fluid can not normally take out. In view of the above, in the embodiment of the present invention, a second positioning member 102 (circumferential positioning member) is disposed on an outer wall of the inner valve body 10, a second positioning portion 202 is disposed on an inner wall of the outer valve body 20 at a position corresponding to the second positioning member 102, when the inner valve body 10 is installed in the outer valve body 20, the second positioning member 102 is engaged with the second positioning portion 202 to limit the axial movement of the inner valve body 10 in the outer valve body 20, and when the inner valve body 10 and the outer valve body 20 are relatively moved in the axial direction, the through hole 103 in the inner valve body 10 and the communication hole 203 in the outer valve body 202 are displaced, reduces or prevents the suction valve from communicating with the external environment, so that the process of extracting the tissue fluid is blocked.

In the prior art, an endoscope suction valve is usually arranged integrally, and when one place of the suction valve is damaged, the whole suction valve needs to be replaced, so that the maintenance cost is high; in the embodiment, the suction valve is arranged as the inner valve body and the outer valve body, and the inner valve body and the outer valve body are detachably mounted, so that the suction valve is convenient to maintain, only damaged parts need to be replaced, and the whole suction valve does not need to be replaced; after the suction valve is set to be detachable, since the inner valve body and the outer valve body of the suction valve need to interact with the external environment, the through hole formed in the inner valve body and the communication hole formed in the outer valve body need to be in a coaxial alignment state all the time.

Further, the first positioning element 101 is a positioning protrusion, and the positioning protrusion is arranged along the axial direction of the inner valve body 10 and is used for positioning the circumferential direction of the inner valve body 10.

Further, the first positioning portion 201 is configured as a positioning slot for accommodating the positioning bump.

In the above scheme, the first positioning element 101 is a positioning protrusion, the positioning protrusion is a cuboid, the height direction of the cuboid is the direction perpendicular to the axis of the inner valve body 10, the length direction is the direction parallel to the axis of the inner valve body 10, and the width direction is the direction perpendicular to the height direction and the length direction; the length direction is parallel to during the location lug is arranged the axis direction of interior valve body 10, the location lug is followed arrange 1 at least along the axial on the outer wall of interior valve body 10, according to actual location degree demand to interior valve body 10, can also arrange 2, 3, 4, 6 etc. on the outer wall of interior valve body 10, do not do the restriction here.

The inner wall of the outer valve body 20 is provided with a positioning groove at a position corresponding to the positioning lug, and the positioning lug is matched with the positioning groove, so that the inner valve body 10 is circumferentially positioned relative to the outer valve body 20.

Besides, there is an implementation scheme, in which a positioning groove is disposed on the outer wall of the inner valve body 10, a positioning protrusion is disposed on the inner wall of the outer valve body 20, and the positioning groove and the positioning protrusion are in snap fit to realize circumferential positioning of the inner valve body 10 relative to the outer valve body.

Specifically, the positioning groove on the outer valve body 20 is a groove formed downwards along the top of the outer valve body 20, when the inner valve body 10 is installed in the outer valve body 20, the positioning protrusion is installed in a downward sliding manner along the groove, and after the positioning groove and the positioning protrusion are matched, the through hole 103 just aligns with the communication hole 203, and the positioning groove and the positioning protrusion are located on the same axis. The positioning protrusions provided on the inner valve body 10 are required to correspond to the through holes 103 and the grooves on the outer valve body 20, that is, the positioning grooves and the positioning protrusions can limit circumferential positioning between the inner valve body and the outer valve body, and guide the through holes 103 to align with the communication holes 203.

Specifically, the positioning protrusion may be fixedly mounted on the outer wall of the inner valve body 10 by gluing, welding, or screwing, and in addition, the positioning protrusion may be connected with the inner valve body 10 by integral molding.

Preferably, the cross-sectional shape of the positioning protrusion in the width direction may be a rectangle, a square, a hemisphere, etc., and the specific shape is not limited herein, and the cross-sectional shape of the embodiment is a rectangle.

Therefore, the positioning lug arranged on the outer wall of the inner valve body and the positioning groove arranged on the inner wall of the outer valve body can be in connected fit with each other, so that the inner valve body is positioned in the circumferential direction, the through hole and the communicating hole are guided to be aligned, and the through hole and the communicating hole are limited in the circumferential direction.

Further, the second positioning member 102 is an annular protrusion annularly arranged along the circumferential direction of the inner valve body 10, and is used for positioning the inner valve body 10 in the axial direction.

Further, the surface of the annular bulge is an arc surface.

Further, the material of the annular protrusion is an elastic material.

Further, the second positioning portion 202 is an annular groove, and is used for being matched with the annular protrusion to realize axial positioning of the inner valve body 10.

In the above scheme, the second positioning element 102 is an annular protrusion arranged on the outer wall of the inner valve body 10, the center line of the annular protrusion 102 coincides with the center line of the inner valve body 10, and the annular protrusion is arranged in a circle along the circumferential direction of the outer wall of the inner valve body 10, or a plurality of circles of annular protrusions, such as 1 circle, 2 circles, 3 circles, etc., may be arranged on the outer wall of the inner valve body 10 at intervals, and the specific number is not limited herein. The surface of the annular protrusion is rounded so that the inner valve body 10 is less scratched to the inner wall when being installed in the outer valve body 20, and the like.

Be provided with on the inner wall of outer valve body 20 with the protruding ring channel that corresponds of annular, when interior valve body 10 was installed at outer valve body 20, the annular protruding with the ring channel carries out the joint cooperation, and is right interior valve body 10 carries on spacingly along axial direction, avoids interior valve body 10 to follow the axis direction removes and drops from outer valve body 20. The inner wall shape of ring channel with the bellied surface shape of annular suits, if the inner wall of ring channel is the arc, works as when the annular is protruding for the cuboid, the inner wall of ring channel is the cuboid bodily form.

Besides, there is an embodiment that an annular protrusion is provided on the inner wall of the outer valve body 20, an annular groove is provided on the outer wall of the inner valve body 10 at a position corresponding to the annular protrusion, and the annular protrusion and the annular groove are engaged with each other before, so that the inner valve body 10 can be positioned in the axial direction.

Specifically, the annular protrusion may be formed by surrounding multiple sections of small annular protrusions at intervals, or may be formed by connecting a complete annular protrusion end to end. When a plurality of small annular protrusions are provided, each of the annular protrusions may be arranged in parallel in the axial direction of the inner valve body.

In order to realize the positioning in the axial direction after the inner valve body 10 and the outer valve body 20 are installed and ensure the sealing performance of the suction valve, the annular protrusion is made of elastic materials, when the suction valve is installed, external force is applied to the inner valve body 10 to enable the annular protrusion to be in annular groove through extrusion, the annular protrusion and the annular groove are in tight fit, namely the annular protrusion and the annular groove are connected in an interference fit mode, the suction valve formed after the inner valve body 10 and the outer valve body 20 are installed in a matched mode is ensured to have good sealing performance, namely the annular protrusion made of the elastic materials has the same sealing effect as a sealing ring. If the annular protrusion is made of hard material, after the annular protrusion is matched with the annular groove, the annular protrusion and the annular groove cannot be in close contact, a large gap exists, and external air enters the gap, or when negative pressure is formed in the suction valve, the pressure is lower than the actual supply pressure.

Specifically, the elastic material may be rubber, resin, or other materials, and the specific type of the elastic material is not limited herein.

Preferably, the positioning lug and the annular protrusion may be arranged on the outer wall of the inner valve body 10 and/or the outer valve body 20 in the following manner: 1) the positioning lug is crossed with the annular bulge, and the positioning lug is called as a part of the annular bulge; 2) the positioning bulge and the annular bulge are vertically arranged along the axis direction, the positioning bulge can be arranged above the annular bulge and also can be arranged below the annular bulge, or the upper part and the lower part of the annular bulge are both provided with the positioning bulge. The present embodiment preferably arranges the positioning projection to intersect with the annular projection, and since the size of the inner valve body 10 is generally small, if the positioning projection 101 and the annular projection 102 are arranged to be spaced apart from each other, the axial size of the inner valve body 10 will become large.

In this scheme, carry out the joint cooperation through the annular groove that sets up on the annular bulge that sets up on the outer wall of inner valve body and the outer valve body inner wall, the valve body is spacing in the axial direction in the realization, and makes through hole and intercommunicating pore realize the location in the axial, has guaranteed the alignment of through hole and intercommunicating pore in axial direction, sets up the bellied material of annular into elastic material for the annular bulge with be zonulae occludens between the annular groove, has improved the leakproofness of suction valve.

Further, the inner valve body 10 is provided with a through hole 103, and the through hole 103 is communicated with the communication hole 203 of the outer valve body 20 for communicating with the outside.

In the above-described embodiment, the through hole 103 of the inner valve body 10 and the communication hole 203 of the outer valve body 20 are arranged to pass through and are located on the same axis, so that the suction valve can maintain communication with the outside.

Example two:

as shown in fig. 6 and 7, a suction valve assembly for an endoscope according to a second embodiment of the present invention includes a suction button 2 and a suction valve according to the first embodiment, and the suction button 2 is detachably mounted on the suction valve.

Example three:

a third aspect of the present invention provides an endoscope comprising an insertion section and a handle section, the handle section being provided with the endoscope suction valve assembly according to the second embodiment.

The endoscope in the scheme can realize smooth suction of redundant fluid at the focus part of a patient by adopting the suction valve assembly; and adopt above-mentioned attraction button, not only strengthened the sealed effect to the suction channel in the endoscope, above-mentioned attraction button is not fragile simultaneously, and is difficult for corroding, has avoided the secondary infection to the patient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. An endoscope suction valve is characterized by comprising an inner valve body (10) and an outer valve body (20), wherein the inner valve body (10) is installed in the outer valve body (20), and the inner valve body (10) is detachably connected with the outer valve body (20);

a first positioning piece (101) is arranged on the outer wall of the inner valve body (10), a first positioning part (201) is arranged on the inner wall of the outer valve body (20), and the first positioning piece (101) is in clamping fit with the first positioning part (201) and used for positioning the circumferential direction of the inner valve body (10);

the outer wall of the inner valve body (10) is provided with a second positioning piece (102), the inner wall of the outer valve body (20) is provided with a second positioning part (202), and the second positioning piece (102) is in clamping fit with the second positioning part (202) and used for axially positioning the inner valve body (10).

2. The endoscope suction valve according to claim 1, characterized in that the first positioning member (101) is a positioning projection arranged in an axial direction of the inner valve body (10) for positioning a circumferential direction of the inner valve body (10).

3. The endoscope suction valve according to claim 1, characterized in that the second positioning member (102) is an annular projection annularly arranged along a circumferential direction of the inner valve body (10) for positioning an axial direction of the inner valve body (10).

4. The endoscopic suction valve as defined in claim 3 wherein the surface of said annular projection is a curved surface.

5. The endoscopic suction valve of claim 4 wherein the material of said annular projection is an elastomeric material.

6. The endoscopic suction valve as defined in claim 1, wherein said first positioning portion (201) is provided as a positioning groove for receiving said positioning projection.

7. An endoscope suction valve according to claim 4, characterized in that the second positioning portion (202) is an annular groove for cooperation with the annular projection for axial positioning of the inner valve body (10).

8. An endoscope suction valve according to any of claims 1 to 7, characterized in that a through hole (103) is provided in said inner valve body (10), said through hole (103) being communicated with a communication hole (203) in said outer valve body (20) for communication with the outside.

9. An endoscope suction valve assembly, characterized by comprising a suction button (2) and an endoscope suction valve according to one of claims 1 to 8, said suction button (2) being detachably mounted on said endoscope suction valve.

10. An endoscope comprising an insertion portion and a handle portion, the handle portion having the endoscope suction valve assembly of claim 9 disposed thereon.