CN115486795B - Endoscope handle and suction valve - Google Patents
Endoscope handle and suction valve Download PDFInfo
- Publication number
- CN115486795B CN115486795B CN202211463088.1A CN202211463088A CN115486795B CN 115486795 B CN115486795 B CN 115486795B CN 202211463088 A CN202211463088 A CN 202211463088A CN 115486795 B CN115486795 B CN 115486795B
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- pressing
- piece
- key
- flexible tube
- suction valve
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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
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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
- A61B1/012—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
Abstract
The invention relates to an endoscope handle and an attraction valve, which can simplify the valve structure and reduce the product cost. The suction valve comprises a flexible pipe, a supporting piece, a key and a resetting piece. The flexible tube has a first end, a second end, and an air intake aperture positioned between the first end and the second end. The support member has an air intake passage communicating with the air intake hole. The key is slidably disposed on the support. The reset piece is arranged between the key and the supporting piece and is used for applying reset force to the key relative to the supporting piece. When the key is not pressed or loosened, the key collapses the part of the flexible pipe between the air inlet hole and the first end under the action of the resetting piece so as to break the passage between the first end and the second end and unblock the air inlet channel of the supporting piece; when the key is pressed, the key releases the flexible tube to conduct the passageway between the first end and the second end and to block the air intake passage of the support.
Description
Technical Field
The invention relates to the technical field of endoscopes, in particular to an endoscope handle and an attraction valve.
Background
In recent years, with the rapid development of smart medical treatment, medical endoscopes have been increasingly used in the medical field, such as an endoscope applied to bronchi or abdominal cavities. It is well known that an endoscope handle is generally provided with a suction channel, and a suction valve is designed on the suction channel for sucking body fluid, blood clots, secretions and the like during operation.
At present, the suction valve adopted by the endoscope handle in the market is generally complex in internal structure, high in development cost and unsmooth in suction channel, and blockage can occur in actual use, and especially when blood clots or human tissues enter the suction channel, the normal operation is easily influenced. For example, chinese patent application No. 201110303858.1 discloses an aspiration button for an endoscope: when the operator does not press the suction button to be in a non-suction state, the plunger is closed, the suction outlet is connected with the suction device to form negative pressure, and the suction device sucks external gas at the moment; when an operator presses the suction button to be in a suction state, the air inlet of the silica gel cap is blocked, and the plunger integrally connected with the silica gel cap moves downwards, so that the suction inlet is opened, and at the moment, the body fluid, the blood clot, the secretion or the like is sucked by the suction device. However, the suction path of the conventional suction valve is closed in a non-suction state and is opened in a suction state, but the whole suction path is bent, so that blood clots, sputum and other objects are easily blocked, which causes great inconvenience and potential safety hazard to the use of the endoscope.
Disclosure of Invention
An advantage of the present invention is to provide an endoscope handle and suction valve that can simplify the valve structure and reduce product costs.
Another advantage of the present invention is to provide an endoscope handle and suction valve that can maintain the entire suction channel clear for easier suction of blood clots or tissue.
Another advantage of the present invention is to provide an endoscope handle and a suction valve, wherein in one embodiment of the present invention, the suction valve can utilize the self elasticity of a hose to realize the function of the suction valve with only a simple structure.
Another advantage of the present invention is to provide an endoscope handle and suction valve in which expensive materials or complex structures are not required in the present invention to achieve the above objects. The present invention thus successfully and effectively provides a solution that not only provides a simple endoscope handle and suction valve, but also increases the practicality and reliability of the endoscope handle and suction valve.
To achieve at least one of the above or other advantages and objects of the invention, there is provided an attraction valve comprising:
a flexible tube having a first end, a second end, and an air intake aperture between the first end and the second end;
a support member having an intake passage communicating with the intake hole;
a key slidably disposed on the support; and
the reset piece is arranged between the key and the support piece and is used for applying reset force to the key relative to the support piece;
when the key is not pressed or released, the key collapses the part of the flexible pipe between the air inlet hole and the first end under the action of the resetting piece so as to break the passage between the first end and the second end and unblock the air inlet channel of the supporting piece; when the key is pressed, the key releases the flexible tube to conduct the passage between the first end and the second end and to block the air intake passage of the support.
According to one embodiment of the application, the flexible tube is a silicone tube.
According to one embodiment of the present application, the air inlet of the flexible pipe is formed in a pipe wall of the flexible pipe, wherein the support member is fixedly connected to the pipe wall of the flexible pipe, and the air inlet is aligned with a connection end opening of the air inlet channel of the support member.
According to one embodiment of the present application, the key comprises a pressing piece slidably mounted on the supporting piece and a blocking piece arranged on the pressing piece, the resetting piece is arranged between the pressing piece and the supporting piece, the pressing piece is releasably shrunken under the action of the resetting piece, and the blocking piece can be used for blocking the opening of the free end of the air inlet channel under the driving of the pressing piece.
According to one embodiment of the application, the pressing member comprises a pressing ring slidably fitted around the flexible tube and the supporting member, and a pressing block extending from the pressing ring toward the flexible tube.
According to one embodiment of the present application, the pressing member further comprises a pressing cap extending laterally from the pressing ring; the pressing block extends longitudinally inward from a portion of the pressing ring away from the pressing cap.
According to one embodiment of the application, the support further has a limit groove with a notch facing the pressing block of the pressing member to receive the flexible tube in a limit manner.
According to one embodiment of the application, the restoring member is a spring, one end of the spring is connected to the pressing ring, and the other end of the spring is connected to the supporting member.
According to one embodiment of the application, the support further has a spring cavity for accommodating the spring, the mouth of the spring cavity facing the pressing cap of the pressing piece; the pressing member further includes a guide post extending from the pressing ring toward the spring cavity, and the spring is sleeved on the guide post.
According to one embodiment of the present application, the blocking member includes a silicone cap fitted over the pressing member and a protrusion integrally extending from the silicone cap, the protrusion being aligned with a free end opening of the air inlet passage of the supporting member.
According to another aspect of the present application, there is further provided an endoscope handle comprising:
a handle body; and
the suction valve according to any one of the above, wherein the suction valve is attached to the handle body.
According to one embodiment of the present application, the handle body includes a housing, a working channel within the housing, and a suction tube disposed to the housing; the first end and the second end of the flexible tube of the suction valve are respectively communicated with the working channel and the suction tube.
According to one embodiment of the application, the handle body further comprises a tee and a sealing cap, the two nozzles of the tee are connected to the working channel and the first end of the flexible tube respectively, and the sealing cap is detachably covered on the remaining nozzles of the tee.
Drawings
FIG. 1 is a schematic view of the structure of an endoscope handle according to an embodiment of the present invention;
FIG. 2 shows an exploded view of an endoscope handle according to the above-described embodiment of the present invention;
FIG. 3 shows an enlarged partial schematic view of an endoscope handle in a non-suction state in accordance with the above-described embodiment of the present invention;
FIG. 4 shows a schematic cross-sectional view of A-A of the endoscope handle shown in FIG. 1 in an attractive state;
FIG. 5 shows a schematic B-B cross-sectional view of the endoscope handle shown in FIG. 1 in an attractive state.
Reference numerals: 1. an endoscope handle; 10. a handle body; 11. a housing; 110. a support rib; 12. a working channel; 120. a clamp pipe; 13. a suction tube; 14. a three-way pipe; 15. a sealing cap; 16. a pipe joint ring; 20. a suction valve; 21. a flexible tube; 210. a silicone tube; 211. a first end; 212. a second end; 213. an air inlet hole; 22. a support; 220. an air intake passage; 221. a limit groove; 222. a spring cavity; 23. a key; 231. a pressing member; 2311. a pressing ring; 2312. pressurizing the block; 2313. pressing the cap; 2314. a guide post; 232. a blocking member; 2321. a silica gel cap; 2322. a protrusion; 24. a reset member; 240. and (3) a spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that when an element is referred to as being "disposed" or "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
Considering that the suction valve adopted by the existing endoscope handle is complex in internal structure and high in development cost, the whole suction path is bent, blood clots or sputum and other objects are easy to block, and great inconvenience and potential safety hazards are brought to the use of the endoscope. In order to solve the above problems, the present application proposes an endoscope handle and a suction valve, which not only can simplify the valve structure and reduce the product cost, but also can keep the whole suction channel unobstructed so as to suck out blood clots or tissues more easily.
In particular, referring to fig. 1 to 5, one embodiment of the present invention provides an endoscope handle 1 for connection with an endoscope insertion section to form a medical endoscope. The endoscope handle 1 may include a handle body 10 and a suction valve 20 mounted to the handle body 10 so as to control the medical endoscope to switch between an air intake state and a suction state by operating the suction valve 20.
It is noted that, as shown in fig. 1 and 2, the handle body 10 may include a housing 11, a working channel 12 located within the housing 11, and a suction tube 13 provided to the housing 11. Working channel 12 may be implemented, but is not limited to, as a forceps channel tube 120 for insertion of instruments such as surgical forceps or cutting blades. The suction tube 13 communicates with the working channel 12 for connection to a negative pressure aspirator (not shown) to create a negative pressure environment inside the suction tube 13 for performing a desired suction operation through the working channel 12.
More specifically, as shown in fig. 2 and 3, the suction valve 20 may include a flexible tube 21, a support 22, a key 23, and a reset member 24. The flexible tube 21 has a first end 211 for communicating with the working channel 12, a second end 212 for communicating with the suction tube 13, and an air intake hole 213 between the first end 211 and the second end 212 to communicate the working channel 12 with the suction tube 13 through the flexible tube 21. The support 22 is for being mounted to the housing 11 of the handle body 10; the support 22 has an intake passage 220 communicating with the intake hole 213. The key 23 is slidably provided to the support 22. The reset member 24 is disposed between the key 23 and the support member 22 for applying a reset force to the key 23 with respect to the support member 22.
As shown in fig. 5, when the key 23 is not pressed or released, the key 23 collapses the portion of the flexible tube 21 between the air intake hole 213 and the first end 211 by the restoring member 24 to break the passage between the first end 211 and the second end 212 in the flexible tube 21 and unblock the air intake passage 220 of the support member 22. Thus, under the action of the negative pressure aspirator, external air (e.g., outside air) can flow into the air inlet hole 213 of the flexible tube 21 through the air inlet passage 220, and then flow into the suction tube 13 from the second end 212 of the flexible tube 21 to flow out through the suction tube 13; that is, the portion of the flexible tube 21 located between the air intake hole 213 and the first end 211 is crushed by the key 23, resulting in the passage between the working channel 12 and the suction tube 13 being disconnected; at this time, the suction pipe 13 sucks the external air flowing in through the air intake passage 220 by the negative pressure suction device.
As shown in fig. 3, when the key 23 is pressed, the key 23 releases the flexible tube 21 to conduct the passage between the first end 211 and the second end 212 in the flexible tube 21 through the flexible tube 21; at the same time, the key 23 blocks the air inlet passage 220 of the support 22 to block the external air from flowing into the air inlet hole 213 of the flexible tube 21 through the air inlet passage 220. Thus, under the action of the negative pressure aspirator, internal fluid (e.g., body fluid or perfusate, etc.) can flow through the working channel 12 into the first end 211 of the flexible tube 21 and then from the second end 212 of the flexible tube 21 into the suction tube 13 to flow out through the suction tube 13; that is, the portion of the flexible tube 21 located between the air intake hole 213 and the first end 211 is released by the key 23, resulting in the passage between the working channel 12 and the suction tube 13 being conducted; the suction tube 13 is now suctioned by the negative pressure suction device by the internal fluid flowing in via the working channel 12.
Notably, since the suction valve 20 of the present application performs a suction operation by conducting the passage between the working channel 12 and the suction tube 13 through the flexible tube 21 when the key 23 is pressed to bring the endoscope into a suction state, and by collapsing the flexible tube 21 to disconnect the passage between the working channel 12 and the suction tube 13 when the key 23 is not pressed or released to bring the endoscope into a non-suction state, the suction valve 20 of the present application is simplified in structure, reduced in production cost, and ensured to be free of the suction channel through the flexible tube 21, avoiding bending of the suction path toward the existing suction valve, facilitating easier suction of solid particles such as blood clots or tissue fragments, and reduced in risk of clogging.
Alternatively, as shown in fig. 2 and 3, the flexible tube 21 of the present application may be implemented as, but not limited to, a silicone tube 210, so that after the key 23 is pressed to release the silicone tube 210, the collapsed portion of the silicone tube 210 can automatically rebound by its own elasticity to conduct the passage between the working channel 12 and the suction tube 13. Of course, in other examples of the present application, the flexible tube 21 may also be implemented as other deformable tubing such as plastic tubing or latex tubing. It will be appreciated that when the flexible tube 21 is implemented as a tube without automatic rebound capability, such as a latex tube, the two side walls of the flexible tube 21 may be fixedly connected to the support member 22 and the key 23, respectively, so that when the key 23 is pressed, the collapsed portion of the flexible tube 21 is expanded by the key 23 and the support member 22, and the passage between the working channel 12 and the suction tube 13 can still be achieved.
Alternatively, as shown in fig. 3 and 4, the air intake hole 213 of the present application is formed on the wall of the flexible tube 21, wherein the support member 22 is fixedly connected to the wall of the flexible tube 21, and the air intake hole 213 is aligned with the opening of the connecting end of the air intake channel 220 of the support member 22. It will be appreciated that the flexible tube 21 of the present application may be, but is not limited to, adhesively secured to the support 22 by glue to avoid leakage at the junction between the air inlet channel 220 and the air inlet aperture 213 while ensuring that the air inlet channel 220 is in communication with the air inlet aperture 213.
Alternatively, the air intake holes 213 of the present application may be implemented as, but not limited to, circular holes having a diameter of 2 mm.
Illustratively, as shown in fig. 2 and 3, the key 23 of the suction valve 20 of the present application may include a pressing member 231 slidably mounted to the support member 22 and a blocking member 232 provided to the pressing member 231; the reset piece 24 is disposed between the pressing piece 231 and the supporting piece 22; the pressing member 231 is releasably pressed against the flexible tube 21 by the restoring member 24, and the blocking member 232 is driven by the pressing member 231 to openably block the free end opening of the air intake passage 220.
Thus, as shown in fig. 4 and 5, when the pressing member 231 is pressed, the pressing member 231 releases the flexible tube 21 to conduct the passage between the working channel 12 and the suction tube 13; at the same time, the blocking member 232 is driven by the pressing member 231 to block the free end opening of the intake passage 220, so that the intake passage is disconnected. As shown in fig. 3, when the pressing member 231 is not pressed or released, the pressing member 231 collapses the flexible tube 21 by the restoring member 24 to break the passage between the working channel 12 and the suction tube 13; at the same time, the blocking member 232 is driven by the pressing member 231 to open the free end opening of the intake passage 220, so that the intake passage is conducted.
Alternatively, as shown in fig. 4 and 5, the pressing piece 231 of the key 23 includes a pressing ring 2311 slidably fitted around the flexible tube 21 and the support 22 and a pressing block 2312 extending from the pressing ring 2311 toward the flexible tube 21. When the pressing ring 2311 is pressed, the pressing block 2312 is driven by the pressing ring 2311 to move in a direction away from the flexible tube 21 to release the flexible tube 21, so that the flexible tube 21 can conduct the passage between the working channel 12 and the suction tube 13; when the pressing ring 2311 is not pressed or released, the pressing ring 2311 drives the pressing block 2312 to move toward the flexible pipe 21 by the reset piece 24 to collapse the flexible pipe 21, so that the passage between the working channel 12 and the suction pipe 13 is broken.
Optionally, as shown in fig. 3 and 4, the pressing member 231 further includes a pressing cap 2313 extending laterally from the pressing ring 2311 so as to increase a contact area between a user's finger and the key 23, facilitating easier pressing of the key 23.
Alternatively, as shown in fig. 3 to 5, the pressing blocks 2312 extend longitudinally inward from a portion of the pressing ring 2311 away from the pressing cap 2313 such that the pressing blocks 2312 protrude inside the pressing ring 2311 in the moving direction of the pressing ring 2311, facilitating the better compression of the flexible tube 21.
Alternatively, as shown in fig. 3 and 5, the support 22 further has a limiting groove 221, and a notch of the limiting groove 221 faces the pressing block 2312 of the pressing piece 231 to limitedly receive the flexible tube 21. When the pressing ring 2311 is not pressed or released, the pressing block 2312 moves toward the limiting groove 221 to collapse the flexible pipe 21 in the limiting groove 221, preventing the flexible pipe 21 from being deviated to affect the collapsing effect.
Alternatively, the return member 24 may be implemented, but is not limited to, as a spring 240 for applying an elastic force to the pressing member 231 with respect to the support member 22.
Specifically, as shown in fig. 3 and 5, one end of the spring 240 is connected to the pressing ring 2311 at a position remote from the flexible tube 21, and the other end of the spring 240 is connected to the support 22 such that the spring 240 is implemented as a compression spring for applying an elastic force to the pressing member 231 in a direction remote from the flexible tube 21. Thus, when the key 23 is not pressed, the spring 240 is compressed so that the pressing block 2312 collapses the flexible tube 21 by the elastic force of the spring 240; when the key 23 is pressed, the spring 240 is further compressed to accumulate elastic potential energy, and when the key 23 is released, the spring 240 is sprung back to release the accumulated elastic potential energy to drive the pressing piece 231 to return to the original position, so that the pressing piece 2312 collapses the flexible tube 21.
Optionally, as shown in fig. 3 and 5, the support 22 further has a spring cavity 222 for receiving the spring 240, and the cavity mouth of the spring cavity 222 faces the pressing cap 2313 of the pressing member 231 to prevent the spring 240 from being axially bent when being compressed, so as to better accumulate or release elastic potential energy.
Optionally, as shown in fig. 3 and 5, the pressing member 231 may further include a guide post 2314 extending from the pressing ring 2311 toward the spring cavity 222, and the spring 240 is sleeved on the guide post 2314 to guide the spring 240 to axially deform, so as to further enhance the axial bending resistance of the spring 240.
Optionally, guide post 2314 is slidably inserted into spring cavity 222 of support 22 to limit the deformation direction of spring 240 to the maximum extent, avoiding failure of the return function of spring 240 due to axial bending.
Alternatively, as shown in fig. 3 and 5, guide posts 2314 extend longitudinally inward from the pressing ring 2311 near the pressing cap 2313 such that the guide posts 2314 protrude inside the pressing ring 2311 in the moving direction of the pressing ring 2311, facilitating better guiding of the directional movement of the pressing ring 2311 with respect to the support 22.
Alternatively, as shown in fig. 3 and 4, the blocking member 232 of the key 23 may include a silicone cap 2321 sleeved on the pressing member 231, and when the pressing member 231 is pressed, the silicone cap 2321 is driven by the pressing member 231 to block the free end opening of the air inlet channel 220 of the support member 22.
Further, as shown in fig. 3 and 4, the blocking member 232 further includes a protrusion 2322 integrally extended from the silicone cap 2321, the protrusion 2322 being aligned with the free end opening of the air intake passage 220, and when the pressing member 231 is pressed, the protrusion 2322 is inserted into the free end opening of the air intake passage 220 to better block the air intake passage 220.
Optionally, the boss 2322 has a hemispherical configuration to better seal the free end opening of the air intake passage 220.
It should be noted that, as shown in fig. 3, an upper portion of the silicone cap 2321 is adapted to be sleeved on the pressing cap 2313 of the pressing member 231, and a lower portion of the silicone cap 2321 is adapted to be embedded in the housing 11 of the handle body 10; meanwhile, the side wall of the silica gel cap 2321 is provided with an air inlet so as to communicate the interior of the silica gel cap 2321 with the external space, so that external air can flow into the interior of the silica gel cap 2321 through the air inlet, and then flows into the flexible tube 21 through the air inlet channel 220 so that the suction valve 20 is in a non-suction state.
According to the above-described embodiment of the present application, as shown in fig. 1 and 3, the handle body 10 may further include a tee 14 and a sealing cap 15, the two nozzles of the tee 14 being connected to the first end 211 of the flexible tube 21 and the working channel 12, respectively, to communicate the first end 211 of the flexible tube 21 of the suction valve 20 with the working channel 12; a sealing cap 15 is detachably provided to the remaining nozzle of the tee 14 for openably sealing the remaining nozzle of the tee 14. In this way, when the sealing cap 15 is removed to open the remaining mouth of the tee 14, instruments such as forceps can be inserted through the tee 14 into the working channel 12 to perform subsequent surgical procedures; when the sealing cap 15 is covered to seal the remaining pipe orifice of the tee 14, the negative pressure aspirator will form a negative pressure environment in the working channel 12 through the aspiration pipe 13, the flexible pipe 21 and the tee 14, so as to aspirate the fluid in the body at negative pressure to perform the corresponding aspiration task.
Alternatively, as shown in fig. 1 and 3, the working channel 12 of the handle body 10 may be implemented, but is not limited to, as a forceps channel tube 120 for extension to an endoscope insertion portion. The handle body 10 may further include a conduit collar 16, the conduit collar 16 conductively connecting the clamp tube 120 to one of the nozzles of the tee 14 to accommodate clamp tubes 120 of different gauges.
It should be noted that, as shown in fig. 2 and 3, the supporting rib 110 is provided in the housing 11 of the handle body 10, and the supporting rib 110 supports the bending portion of the forceps channel tube 120, so as to ensure that the forceps channel tube 120 is bent smoothly, avoid bending, and facilitate the smooth insertion of instruments such as forceps.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (12)
1. Suction valve, its characterized in that includes:
a flexible tube having a first end, a second end, and an air intake aperture between the first end and the second end;
a support member having an intake passage communicating with the intake hole;
a key slidably disposed on the support; and
the reset piece is arranged between the key and the support piece and is used for applying reset force to the key relative to the support piece;
the key comprises a pressing piece and a blocking piece, wherein the pressing piece is slidably arranged on the supporting piece, the blocking piece is arranged on the pressing piece, the resetting piece is arranged between the pressing piece and the supporting piece, the pressing piece can be used for releasably collapsing the flexible pipe under the action of the resetting piece, and the blocking piece can be used for blocking the opening of the free end of the air inlet channel under the drive of the pressing piece;
when the key is not pressed or released, the key collapses the part of the flexible pipe between the air inlet hole and the first end under the action of the resetting piece so as to break the passage between the first end and the second end and unblock the air inlet channel of the supporting piece; when the key is pressed, the key releases the flexible tube to conduct the passage between the first end and the second end and to block the air intake passage of the support.
2. The suction valve as set forth in claim 1 wherein said flexible tube is a silicone tube.
3. The suction valve as claimed in claim 1, wherein the air inlet hole of the flexible tube is opened at a wall of the flexible tube, wherein the supporter is fixedly connected to the wall of the flexible tube, and the air inlet hole is aligned with a connection end opening of the air inlet channel of the supporter.
4. A suction valve according to any one of claims 1 to 3, wherein the pressing member comprises a pressing ring slidably fitted over the flexible tube and the support member and a pressing block extending from the pressing ring toward the flexible tube.
5. The suction valve as set forth in claim 4 wherein said pressing member further comprises a pressing cap extending transversely from said pressing ring; the pressing block extends longitudinally inward from a portion of the pressing ring away from the pressing cap.
6. The suction valve as set forth in claim 5 wherein said support member further has a limit slot with a notch thereof facing said pressing block of said pressing member to limitedly receive said flexible tube.
7. The suction valve as claimed in claim 6, wherein the restoring member is a spring, one end of the spring is connected to the pressing ring, and the other end of the spring is connected to the supporting member.
8. The suction valve as claimed in claim 7, wherein the supporter further has a spring chamber for accommodating the spring, a mouth of the spring chamber facing the pressing cap of the pressing member; the pressing member further includes a guide post extending from the pressing ring toward the spring cavity, and the spring is sleeved on the guide post.
9. A suction valve according to any one of claims 1 to 3, wherein the closure member comprises a silicone cap fitted over the pressing member and a projection extending integrally from the silicone cap, the projection being aligned with a free end opening of the air inlet channel of the support member.
10. An endoscope handle, comprising:
a handle body; and
the suction valve according to any one of claims 1 to 9, being mounted to the handle body.
11. The endoscope handle of claim 10, wherein the handle body comprises a housing, a working channel within the housing, and a suction tube disposed to the housing; the first end and the second end of the flexible tube of the suction valve are respectively communicated with the working channel and the suction tube.
12. The endoscope handle of claim 11, wherein said handle body further comprises a tee having two nozzles connected to said working channel and said first end of said flexible tube, respectively, and a sealing cap removably covering the remaining nozzles of said tee.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211463088.1A CN115486795B (en) | 2022-11-22 | 2022-11-22 | Endoscope handle and suction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211463088.1A CN115486795B (en) | 2022-11-22 | 2022-11-22 | Endoscope handle and suction valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115486795A CN115486795A (en) | 2022-12-20 |
| CN115486795B true CN115486795B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211463088.1A Active CN115486795B (en) | 2022-11-22 | 2022-11-22 | Endoscope handle and suction valve |
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| CN (1) | CN115486795B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207886188U (en) * | 2017-07-03 | 2018-09-21 | 重庆金山医疗器械有限公司 | A kind of endoscope Attraction structure |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10307722A1 (en) * | 2002-03-07 | 2003-11-13 | Enomoto Co Ltd | Medical device |
| JP2009089765A (en) * | 2007-10-04 | 2009-04-30 | Hoya Corp | Attachment for check valve of endoscope |
| JP5404569B2 (en) * | 2010-09-22 | 2014-02-05 | 富士フイルム株式会社 | Endoscope suction button |
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| JP5552014B2 (en) * | 2010-09-29 | 2014-07-16 | 富士フイルム株式会社 | Endoscope suction button |
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| CN217611004U (en) * | 2022-09-09 | 2022-10-21 | 杭州海康慧影科技有限公司 | Suction valve structure and endoscope device |
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| CN207886188U (en) * | 2017-07-03 | 2018-09-21 | 重庆金山医疗器械有限公司 | A kind of endoscope Attraction structure |
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