CN115104998A - Suction valve assembly, endoscope handle and endoscope - Google Patents
Suction valve assembly, endoscope handle and endoscope Download PDFInfo
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- CN115104998A CN115104998A CN202210759476.8A CN202210759476A CN115104998A CN 115104998 A CN115104998 A CN 115104998A CN 202210759476 A CN202210759476 A CN 202210759476A CN 115104998 A CN115104998 A CN 115104998A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00066—Proximal part of endoscope body, e.g. handles
- A61B1/00068—Valve switch arrangements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/00073—Insertion part of the endoscope body with externally grooved shaft
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00105—Constructional details of the endoscope body characterised by modular construction
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
- A61B1/015—Control of fluid supply or evacuation
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- General Health & Medical Sciences (AREA)
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- Endoscopes (AREA)
Abstract
The invention discloses a suction valve component, an endoscope handle and an endoscope, wherein the suction valve component comprises a valve rod and a valve seat, the valve rod is provided with an axially through instrument channel, the valve seat is provided with an axially through accommodating cavity and a negative pressure hole communicated with the accommodating cavity, the accommodating cavity is provided with an instrument tube butt joint cavity at the far end of the valve seat, the instrument channel is communicated with the instrument tube butt joint cavity, the valve rod is movably arranged in the accommodating cavity, when the valve rod is at a first position, the negative pressure hole is separated from the instrument tube butt joint cavity, and when the valve rod is at a second position, the negative pressure hole is communicated with the instrument tube butt joint cavity; the instrument channel is communicated with the instrument tube, and a treatment instrument can enter a human body through the valve rod and the instrument tube in sequence to grab tissues; the valve rod is pressed, the containing cavity is communicated with the instrument tube, the negative pressure hole can extract liquid in a human body through the containing cavity, and the suction valve assembly has the characteristic of multiple purposes, so that the endoscope handle is compact in layout, and the occupied space of the endoscope handle is reduced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a suction valve assembly, an endoscope handle and an endoscope.
Background
An endoscope is a common medical instrument, is an examination instrument which can directly enter a natural pipeline of a human body, and can provide sufficient diagnosis information for doctors to treat diseases.
The endoscope comprises an endoscope handle which can be operated by medical staff to shoot images, treat or suck liquid at a focus part of a patient, and the endoscope handle in the related technology occupies a large space, so that the endoscope is difficult to develop towards miniaturization.
Accordingly, it is an urgent technical problem to be solved by those skilled in the art to provide an endoscope handle having a compact structure.
Disclosure of Invention
The invention discloses a suction valve assembly, an endoscope handle and an endoscope, and aims to solve the technical problem that the endoscope handle in the related art occupies a large space.
In order to solve the problems, the invention adopts the following technical scheme:
in a first aspect, the present application provides a suction valve assembly, the disclosed suction valve assembly comprising:
the valve rod is provided with an instrument channel which is communicated along the axial direction of the valve rod;
the valve seat is provided with an accommodating cavity body which is communicated along the axial direction of the valve seat and a negative pressure hole which is communicated with the accommodating cavity body, the accommodating cavity body is provided with an instrument tube butt joint cavity at the far end of the valve seat, and the instrument channel is communicated with the instrument tube butt joint cavity;
the valve rod is movably arranged in the accommodating cavity body and at least provided with a first position and a second position, the negative pressure hole is isolated from the instrument tube butt joint cavity under the condition that the valve rod is located at the first position, and the negative pressure hole is communicated with the instrument tube butt joint cavity under the condition that the valve rod is located at the second position.
Furthermore, the accommodating cavity further comprises a valve rod installation cavity, the valve rod installation cavity and the instrument tube butt joint cavity are distributed along the axial direction of the valve seat, the negative pressure hole is communicated with the valve rod installation cavity, and the instrument channel is communicated with the instrument tube butt joint cavity.
The suction valve assembly further includes a first seal that blocks the valve stem mounting cavity and the instrument tube docking cavity when the valve stem is in the first position.
Further, the valve rod is provided with a limiting part, and the first sealing element is in limiting fit with the limiting part so as to limit the axial movement of the first sealing element along the valve rod.
Further, the valve seat is further provided with an atmosphere communication hole communicated with the valve rod installation cavity, the atmosphere communication hole is communicated with the negative pressure hole under the condition that the valve rod is at the first position, and the atmosphere communication hole is isolated from the negative pressure hole under the condition that the valve rod is at the second position.
Further, the suction valve assembly further includes a second seal that blocks the negative pressure hole and the atmosphere communication hole with the valve stem in the second position.
Further, the attraction valve assembly further comprises a reset piece, the reset piece is connected with the valve seat and the valve rod, and the reset piece can drive the valve rod to be switched from the second position to the first position.
Further, the piece that resets includes the spring, the both ends of spring respectively with the valve rod with the disk seat links to each other.
Or, the piece that resets includes first magnetism spare and second magnetism spare, first magnetism spare is located the valve rod, second magnetism spare is located the disk seat, first magnetism spare with second magnetism spare produces magnetic repulsion, in order to drive the valve rod by the second position moves to first position.
The proximal end of the instrument channel is provided with an insertion section, and the caliber of the insertion section is gradually reduced in the insertion direction of the instrument in the instrument channel.
In a second aspect, the present application also provides an endoscope handle, comprising a housing and the aforementioned suction valve assembly, wherein the housing is provided with a suction valve mounting location, and the suction valve assembly is provided in the suction valve mounting location.
In a third aspect, the application also provides an endoscope comprising the endoscope handle.
The technical scheme adopted by the invention can achieve the following beneficial effects:
according to the suction valve assembly disclosed by the embodiment of the application, the instrument channel of the valve rod is always communicated with the instrument tube, and under the condition that the instrument bolt is opened, a treatment instrument can sequentially extend into a focus part in a human body through the instrument channel and the instrument tube; when an instrument plug is used for plugging an instrument channel, and the valve rod is pressed to move to a second position, the negative pressure hole and the atmosphere communicating hole are separated by the second sealing element, the negative pressure hole is communicated with the instrument tube butt joint cavity, and liquid in a human body can be extracted by the negative pressure mechanism through the instrument tube, the accommodating cavity and the negative pressure hole in sequence; the suction valve component has the functions of penetrating through a treatment instrument and sucking liquid in a human body, and is multifunctional, so that the suction valve component has the characteristic of small occupied space when being assembled on the endoscope handle, the space waste is avoided, and the space utilization rate of the endoscope handle is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of a valve stem according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of a valve stem of an embodiment of the present application;
FIG. 3 is a schematic structural view of a valve seat according to an embodiment of the present application;
FIG. 4 is a cross-sectional view of a valve seat of an embodiment of the present application;
FIG. 5 is a schematic structural view of a suction valve assembly according to an embodiment of the present application;
FIG. 6 is one of the structural schematic diagrams of the endoscope handle of the embodiments of the present application;
FIG. 7 is a second schematic structural view of an endoscope handle of an embodiment of the present application;
fig. 8 is a sectional view taken along the line a-a in fig. 7.
In the figure:
100-a valve stem, 110-an instrument channel, 111-an insertion section, 120-a limiting part and 130-a blocking part; 200-valve seat, 210-accommodating cavity, 220-negative pressure hole, 230-atmosphere communication hole, 240-sleeve joint part and 250-suction nozzle; 300-a first seal; 400-a second seal; 500-a reset piece; 600-housing, 610-suction valve mounting location, 611-first hole, 612-second hole; 700-an instrument plug; 800-an adapter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The suction valve assembly, the endoscope handle and the endoscope provided by the embodiments of the present application will be described in detail with reference to fig. 1 to 8 through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 8, the present embodiment discloses a suction valve assembly including a valve stem 100 and a valve seat 200.
Specifically, the valve stem 100 is provided with an instrument channel 110 which is axially penetrated along the valve stem, the instrument channel 110 is used for passing a treatment instrument, and the proximal end of the instrument channel 110 is provided with an instrument plug 700 which blocks the instrument channel 110; the valve seat 200 is provided with a receiving cavity 210 penetrating along the axial direction of the valve seat, the receiving cavity 210 is provided with an instrument tube docking cavity 212 at the far end of the valve seat 200, and the instrument tube docking cavity 212 is used for docking with the near end of an instrument tube. The receiving chamber 210 communicates with the instrument channel 110, and with the instrument tube docking chamber 212 docked with the instrument tube, a treatment instrument may be sequentially passed through the instrument channel 110 of the valve stem 100 and the instrument tube into a focal site in the body.
The valve seat 200 is provided with a negative pressure hole 220, the negative pressure hole 220 is communicated with the accommodating cavity 210, in the embodiment of the present application, the negative pressure hole 220 is connected with a suction nozzle 250, and the suction nozzle 250 can be connected with a negative pressure mechanism for extracting liquid in a human body.
The valve stem 100 is movably disposed in the accommodating cavity 210, the valve stem 100 has at least a first position and a second position, the negative pressure hole 220 is isolated from the instrument tube docking cavity 212 when the valve stem 100 is in the first position, the negative pressure hole 220 is communicated with the instrument tube docking cavity 212 when the valve stem 100 is in the second position, and the liquid in the human body can be sequentially extracted through the instrument tube and the accommodating cavity 210 of the valve seat 200 when the negative pressure mechanism is extracted.
According to the suction valve assembly disclosed by the embodiment of the application, the instrument channel 110 of the valve rod 100 is always communicated with the instrument tube, and under the condition that the instrument bolt 700 is opened, a treatment instrument can sequentially extend into a focus position in a human body through the instrument channel 110 and the instrument tube; when the instrument channel 110 is blocked by the instrument plug 700, and the valve rod 100 is pressed to move to the second position, the negative pressure hole 220 is communicated with the instrument tube butt-joint cavity 212, so that liquid in a human body can be extracted through the instrument tube, the accommodating cavity 210 and the suction nozzle 250 in sequence; the valve stem 100 can change the communication state of the negative pressure hole 220 and the instrument tube butt joint cavity 212 and can penetrate through the treatment instrument, so that the suction valve assembly has the functions of penetrating through the treatment instrument and sucking liquid in a human body, and the valve stem is multifunctional.
In an alternative embodiment, instrument tube docking cavity 212 and the instrument tube may be in direct communication, for example, the instrument tube may be inserted into instrument tube docking cavity 212 and fixed thereto by gluing; in another alternative embodiment, referring to fig. 5 and 8, the instrument tube docking lumen 212 may be connected to an instrument tube by an adaptor 800, the adaptor 800 having two chambers in communication with each other, the instrument tube docking lumen 212 and the instrument tube being in communication with both chambers, respectively. It should be noted that, the embodiment of the present application does not limit the specific connection manner of the instrument tube and the valve seat 200, as long as the instrument tube and the instrument tube docking cavity 212 are stably connected and communicated.
In the embodiment of the present application, the accommodating chamber 210 includes a valve stem mounting chamber 211 and the aforementioned instrument tube docking chamber 212, the valve stem mounting chamber 211 and the instrument tube docking chamber 212 are distributed along an axial direction of the valve seat 200, the negative pressure hole 220 communicates with the valve stem mounting chamber 211, the instrument channel 110 communicates with the instrument tube docking chamber 212, and the suction valve assembly further includes a first sealing member 300, and the first sealing member 300 blocks the valve stem mounting chamber 211 and the instrument tube docking chamber 212 when the valve stem 100 is in the first position. That is, in the case where the stem mounting cavity 211 communicates with the instrument tube docking cavity 212, the negative pressure hole 220 communicates with the instrument tube docking cavity 212, and when the stem mounting cavity 211 is blocked from the instrument tube docking cavity 212, the negative pressure hole 220 is blocked from the instrument tube docking cavity 212.
In the embodiment of the present application, the first sealing element 300 may be a sealing ring, the valve stem 100 is provided with a limiting portion 120, and the first sealing element 300 is in limiting fit with the limiting portion 120 to limit the axial movement of the first sealing element 300 along the valve stem 100.
In an alternative embodiment, the stopper 120 may be an annular groove disposed at the distal end of the valve stem 100, and the first seal 300 is disposed in the annular groove.
In another alternative embodiment, referring to fig. 1 and 2, the limiting portion 120 may be a limiting protrusion disposed at a distal end of the valve stem 100, the first sealing element 300 may be fixedly connected to the valve stem 100 by gluing, when the valve stem 100 is in the first position, a proximal end of the first sealing element 300 abuts against an inner wall of the instrument tube docking cavity 212, and a distal end of the first sealing element 300 abuts against the limiting protrusion, so that the first sealing element 300 is prevented from being disengaged from the distal end of the valve stem 100 due to a force applied to the first sealing element 300.
In further technical scheme, spacing arch can be a plurality of, and a plurality of spacing archs distribute along the circumference of valve rod 100, and the axial slope of spacing arch relative valve rod 100 sets up, and under this kind of condition, spacing arch can play limiting displacement to first sealing member 300, and meanwhile, when assembling valve rod 100, spacing arch can inwards take place deformation and insert the apparatus pipe butt joint chamber 212 in, has improved the convenience of valve rod 100 and disk seat 200 assembly.
In the embodiment of the present application, the valve seat 200 is further provided with an atmosphere communication hole 230 communicated with the valve stem mounting cavity 211, the atmosphere communication hole 230 is communicated with the atmosphere, when the valve stem 100 is in the first position, the atmosphere communication hole 230 is communicated with the negative pressure hole 220, the instrument tube docking cavity 212 is communicated with the negative pressure hole 220, at this time, the negative pressure mechanism operates to draw the atmosphere, when the valve stem 100 is driven to switch from the first position to the second position, the atmosphere communication hole 230 is disconnected from the negative pressure hole 220, the instrument tube docking cavity 212 is communicated with the negative pressure hole 220, at this time, under the driving of the negative pressure mechanism, the front end of the instrument tube draws the liquid in the human body.
In the embodiment of the present application, the suction valve assembly further includes a second seal 400, and the second seal 400 blocks the negative pressure hole 220 and the atmosphere communication hole 230 in the case where the valve stem 100 is in the second position.
In an alternative embodiment, referring to fig. 3 and 4, the valve stem mounting cavity 211 may include a first cavity 2111 and a second cavity 2112 which are coaxially connected, the first cavity 2111, the second cavity 2112 and the instrument tube docking cavity 212 are distributed along the axial direction of the valve seat 200, the atmosphere communication hole 230 is connected to the first cavity 2111, and the negative pressure hole 220 is connected to the second cavity 2112, that is, the negative pressure hole 220 is connected between the atmosphere communication hole 230 and the instrument tube docking cavity 212. In the axial direction of the valve seat 200, the opening size of the first cavity 2111 and the opening size of the instrument tube docking cavity 212 are both larger than the opening size of the second cavity 2112, so that a first step is formed between the instrument tube docking cavity 212 and the second cavity 2112, a second step is formed between the first cavity 2111 and the second cavity 2112, the first seal 300 abuts against the first step when the valve stem 100 is in the first position, and the second seal 400 abuts against the second step when the valve stem 100 is in the second position.
The suction valve assembly further comprises a reset piece 500, the reset piece 500 is connected with the valve seat 200 and the valve rod 100, and the reset piece 500 can drive the valve rod 100 to be switched from the second position to the first position, so that the negative pressure hole 220 is communicated with the atmosphere communication hole 230 and is blocked from the instrument tube in the initial state that the suction valve assembly is not subjected to external force.
In an alternative embodiment, referring to fig. 5, the restoring member 500 may include a spring, one end of the spring abuts against the second step, and the other end of the spring abuts against the valve stem 100, specifically, the valve stem 100 is provided with a radially protruding stop portion 130, and the spring abuts against the stop portion 130. When the spring is in the initial state, the negative pressure hole 220 is communicated with the atmosphere communication hole 230, the negative pressure mechanism connected with the negative pressure hole 220 is in the idle state, when the valve rod 100 is pressed to move to the second position, the spring is compressed, and when the external force applied to the spring is removed, the spring is reset and drives the valve rod 100 to move to the first position.
In further technical scheme, the second step is provided with along the cup joint portion 240 that the disk seat 200 near-end extends, and the spring cup joints in cup joint portion 240, and cup joint portion 240 can produce the guide effect to the deformation of spring, based on the existence of cup joint portion 240, can avoid the spring to incline or rock in valve rod installation cavity 211, improves the stability that the spring resets.
In another alternative embodiment, the resetting member 500 may include a first magnetic member and a second magnetic member, wherein the first magnetic member is disposed on the valve rod 100, the second magnetic member is disposed on the valve seat 200, and if the second magnetic member is disposed on the aforementioned second step, the first magnetic member and the second magnetic member generate a magnetic repulsion force to drive the valve rod 100 to move from the second position to the first position, so as to cut off the communication state between the instrument tube docking cavity 212 and the negative pressure hole 220; the valve rod 100 is driven to move by adopting a non-contact driving mode of the first magnetic member and the second magnetic member, so that the situation that the spring is elastically fatigued can be avoided.
In a further technical scheme, the proximal end of the instrument channel 110 is provided with an insertion section 111, and the caliber of the insertion section 111 is gradually reduced in the insertion direction of the instrument in the instrument channel 110, so that the instrument can be conveniently inserted into the instrument channel 110, and the situation that the inserted instrument shakes in the instrument channel 110 can be avoided.
The embodiment of the application also discloses an endoscope handle, which comprises a shell 600 and the suction valve assembly, wherein the shell 600 is provided with a suction valve installation position 610, the suction valve assembly is arranged at the suction valve installation position 610, referring to fig. 6, the suction valve installation position 610 is provided with a first hole 611 and a second hole 612, a suction nozzle connected with the negative pressure hole 220 is arranged in the first hole 611 in a penetrating way, and the second hole 612 corresponds to the atmosphere communication hole 230 so as to ensure that the atmosphere communication hole 230 is always communicated with the atmosphere.
The endoscope handle disclosed in the embodiment of the present application has dual functions of inserting treatment instruments and extracting liquid in a human body based on the suction valve assembly, the housing 600 may be provided with only one suction valve installation position 610 for installing the suction valve assembly, and the suction valve assembly is arranged at the suction valve installation position 610; under the condition, the space size of the endoscope handle can be reduced, the space utilization rate in the endoscope handle is improved, and the miniaturization development of the endoscope handle is facilitated.
When the negative pressure mechanism extracts liquid in a human body, the valve rod 100 and the valve seat 200 are both in contact with the liquid in the human body, therefore, in the embodiment of the present application, the endoscope handle can comprise a reusable section and a disposable section, and the aforementioned suction valve assembly can be arranged at the disposable section of the endoscope handle.
The embodiment of the application also discloses an endoscope, which comprises the endoscope handle.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. A suction valve assembly, comprising:
a valve stem (100), the valve stem (100) being provided with an instrument channel (110) that penetrates in an axial direction thereof;
the valve seat (200) is provided with an accommodating cavity (210) which penetrates through the valve seat (200) along the axial direction of the valve seat and a negative pressure hole (220) communicated with the accommodating cavity (210), the accommodating cavity (210) is provided with an instrument tube butt joint cavity (212) at the far end of the valve seat (200), and the instrument channel (110) is communicated with the instrument tube butt joint cavity (212);
the valve rod (100) is movably arranged in the accommodating cavity body (210), the valve rod (100) at least has a first position and a second position, the negative pressure hole (220) is isolated from the instrument tube butting cavity (212) under the condition that the valve rod (100) is in the first position, and the negative pressure hole (220) is communicated with the instrument tube butting cavity (212) under the condition that the valve rod (100) is in the second position.
2. The suction valve assembly according to claim 1, wherein the receiving chamber body (210) further comprises a valve stem mounting cavity (211), the valve stem mounting cavity (211) and the instrument tube docking cavity (212) are distributed along an axial direction of the valve seat (200), the negative pressure hole (220) communicates with the valve stem mounting cavity (211), and the instrument channel (110) communicates with the instrument tube docking cavity (212);
the suction valve assembly further comprises a first seal (300), and the first seal (300) blocks the valve rod installation cavity (211) and the instrument tube docking cavity (222) under the condition that the valve rod (100) is in the first position.
3. The attraction valve assembly according to claim 2, characterized in that the valve stem (100) is provided with a stopper portion (120), the first seal (300) being in stopper engagement with the stopper portion (120) to limit axial movement of the first seal (300) along the valve stem (100).
4. The suction valve assembly according to claim 2, wherein the valve seat (200) is further provided with an atmosphere communication hole (230) communicating with the stem installation cavity (211), the atmosphere communication hole (230) communicating with the negative pressure hole (220) in a case where the valve stem (100) is in the first position, and the atmosphere communication hole (230) blocking the negative pressure hole (220) in a case where the valve stem (100) is in the second position.
5. The suction valve assembly according to claim 4, further comprising a second seal (400), wherein the second seal (400) blocks the negative pressure hole (220) and the atmosphere communication hole (230) with the valve stem (100) in the second position.
6. The suction valve assembly according to any one of claims 1 to 5, further comprising a reset member (500), wherein the reset member (500) connects the valve seat (200) and the valve stem (100), and the reset member (500) can drive the valve stem (100) to switch from the second position to the first position.
7. The attraction valve assembly according to claim 6 wherein the reset member (500) comprises a spring having opposite ends connected to the valve stem (100) and the valve seat (200), respectively;
or, the reset piece (500) comprises a first magnetic piece and a second magnetic piece, the first magnetic piece is arranged on the valve rod (100), the second magnetic piece is arranged on the valve seat (200), and the first magnetic piece and the second magnetic piece generate a magnetic repulsion force to drive the valve rod (100) to move from the second position to the first position.
8. The suction valve assembly according to claim 6, wherein the proximal end of the instrument channel (110) has an insertion section (111), the aperture of the insertion section (111) being gradually reduced in the insertion direction of the instrument in the instrument channel (110).
9. An endoscope handle, characterized in that, including a housing (600) and the suction valve assembly of any of claims 1 to 7, the housing (600) is provided with a suction valve mounting location (610), the suction valve assembly is provided at the suction valve mounting location (610).
10. An endoscope comprising the endoscope handle of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759476.8A CN115104998B (en) | 2022-06-30 | 2022-06-30 | Suction valve assembly, endoscope handle and endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210759476.8A CN115104998B (en) | 2022-06-30 | 2022-06-30 | Suction valve assembly, endoscope handle and endoscope |
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| Publication Number | Publication Date |
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| CN115104998A true CN115104998A (en) | 2022-09-27 |
| CN115104998B CN115104998B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210759476.8A Active CN115104998B (en) | 2022-06-30 | 2022-06-30 | Suction valve assembly, endoscope handle and endoscope |
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| US20080183037A1 (en) * | 2005-07-22 | 2008-07-31 | Hiroaki Ichikawa | Endoscope and endoscope instrument, and endoscope system |
| JP2012245284A (en) * | 2011-05-31 | 2012-12-13 | Hoya Corp | Endoscope system |
| US20150216393A1 (en) * | 2014-02-06 | 2015-08-06 | Fujifilm Corporation | Switching valve unit and endoscope apparatus |
| CN209770311U (en) * | 2019-03-07 | 2019-12-13 | 杭州维斯博医疗科技有限公司 | Endoscope suction valve and endoscope |
| CN110448356A (en) * | 2019-08-13 | 2019-11-15 | 大连大学附属中山医院 | The ultrasonic knife handle of included suction device for laparoscope operation on rectum |
| CN111297306A (en) * | 2019-12-05 | 2020-06-19 | 重庆金山医疗技术研究院有限公司 | Suction assembly for endoscope and endoscope |
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