Devices, systems, and methods for fluid control in an endoscopic system

Abstract

Various embodiments generally relate to apparatus, systems, and methods for controlling fluid flow in an endoscopic system, such as an endoscope supporting endoscopic ultrasound (EUS). Some embodiments particularly relate to valve assemblies and / or valve interface mechanisms for controlling the flow of air, water, and / or suction through a valve well for the endoscopic system. Several embodiments relate to user interface mechanisms and techniques for enabling an operator to interact with and control an endoscopic valve. Many embodiments relate to mechanisms and techniques for translating interface input movements into valve control movements. In one or more embodiments, the valve assembly and / or valve interface mechanism may be disposable.

Description

[0001] priority

[0002] This application claims the benefit of priority to U.S. Provisional Patent Application Serial No. 62 / 994,021, filed March 24, 2020, pursuant to 35 USC §119, the entire disclosure of which is incorporated herein by reference.

[0003] Related applications

[0004] This application relates to U.S. Provisional Patent Application No. 8150.0641, filed on March 24, 2020, entitled “Interface and motion conversion device, system and method for endoscope valves,” which is incorporated herein by reference in its entirety for all purposes.

[0005] This application relates to U.S. Provisional Patent Application No. 8150.0642, filed March 24, 2020, entitled “Apparatus, System, and Method for Controlling Fluids in an Endoscopic System,” which is incorporated herein by reference in its entirety for all purposes.

[0006] This application relates to U.S. Provisional Patent Application No. 8150.0643, filed March 24, 2020, entitled “Apparatus, System, and Method for Endoscopic Valve Control,” which is incorporated herein by reference in its entirety for all purposes.

[0007] This application relates to U.S. Provisional Patent Application No. 8150.0644, filed March 24, 2020, entitled “Apparatus, System, and Method for Motion Conversion and Interface of Endoscopic Valves,” which is incorporated herein by reference in its entirety for all purposes.

[0008] This application relates to U.S. Provisional Patent Application No. 8150.0647, filed March 24, 2020, entitled “Apparatus, System, and Method for Endoscopic Fluidoscopy,” which is incorporated herein by reference in its entirety for all purposes. Technical Field

[0009] This invention generally relates to the field of medical devices. In particular, this invention relates to means, systems, and methods for controlling flow through a valve well for an endoscope. Background Technology

[0010] Endoscopic procedures are used in medicine to access the interior of the body for diagnostic and / or therapeutic purposes. Often, endoscopic surgery uses an endoscope to examine or manipulate the interior of hollow organs or cavities within the body. Unlike many other medical imaging techniques, an endoscope is inserted directly into the organ. Typically, an endoscope includes one or more channels for the flow of one or more fluids. For example, one or more of suction, air, and water can flow through the endoscope. Valve assemblies can be constructed and used in various ways to control the flow of one or more fluids through the endoscope. In the case of echo-guided endoscopy or ultrasound endoscopy, fluid control can also be used to inflate and deflate a balloon at the tip of the endoscope.

[0011] For these considerations, various advantageous results can be achieved through the apparatus, system and method of the present invention. Summary of the Invention

[0012] In one aspect, the present invention relates to a medical device comprising a valve assembly and a valve interface mechanism. The valve assembly may include a main control valve, an air input valve, and an atmospheric valve. The main control valve may include a valve body having an outer surface and one or more channels configured to control flow between a water input channel, a water output channel, and a balloon channel in a valve well. The air input valve may be configured to control flow through the air input channel of the valve well. The atmospheric valve may be configured to control flow through the atmospheric channel. The valve interface mechanism is operable between a first state, a second state, a third state, and a fourth state. The first state may include a valve assembly configured to place the air input channel in fluid communication with the atmospheric channel; the second state may include a valve assembly configured to place the air input channel in fluid communication with the air output channel; the third state may include a valve assembly configured to place the water input channel in fluid communication with the water output channel; and the fourth state may include a valve assembly configured to place the water input channel in fluid communication with the balloon channel. In some embodiments, in the first state, the valve interface mechanism may be configured to position the outer surface of the valve body to block flow through the balloon channel, the water input channel, and the water output channel. In various embodiments, the valve interface mechanism in a second state may be configured to position the outer surface of the valve body to block flow through the balloon passage, the water inlet passage, and the water outlet passage. In several embodiments, the valve interface mechanism in a third state may be configured to position a first portion of one or more passages in fluid communication with the water inlet passage of the valve well, and to position a second portion of one or more passages in fluid communication with the water outlet passage. In several such embodiments, the valve interface mechanism in a third state may be configured to position the outer surface of the valve body to block flow through the balloon passage. In one or more embodiments, the valve interface mechanism in a fourth state may be configured to position a first portion of one or more passages in fluid communication with the water inlet passage of the valve well, and to position a second portion of one or more passages in fluid communication with the balloon passage. In one or more such embodiments, the valve interface mechanism in a fourth state may be configured to position the outer surface of the valve body to block flow through the water outlet passage. In some embodiments, the valve interface mechanism in a second state may be configured to position the outer surface of the valve body to block flow through the air outlet passage of the valve body. In many embodiments, the valve interface mechanism in a third state may be configured to position a first portion of one or more channels in fluid communication with an air inlet channel of the valve well, and to position a second portion of one or more channels in fluid communication with an air outlet channel of the valve well. In various embodiments, the valve interface mechanism in a fourth state may be configured to position an outer surface of the valve body to block flow through the air outlet channel of the valve body.In several embodiments, one or more channels include one or more manifold channels through the valve body, and the outer surface of the valve body may include one or more manifold ports, wherein the one or more manifold ports are in fluid communication via one or more manifold channels. In some embodiments, one or more channels may be disposed on the outer surface of the valve body. In various embodiments, the valve interface mechanism may be configured to vertically displace the valve body to transition between one or more of a first state and a second state, a second state and a third state, and a third state and a fourth state. In many embodiments, the valve interface mechanism may be configured to rotate the valve body to transition between one or more of a first state and a second state, a second state and a third state, and a third state and a fourth state. In several embodiments, the outer surface of the valve body may include one or more seals or one or more grooves configured to receive one or more seals.

[0013] In another aspect, the present invention relates to a medical device comprising a suction valve assembly and a valve interface mechanism. The suction valve assembly may include a working channel valve configured to control flow through a working channel of a valve well, a balloon channel of the valve well, and an atmospheric channel. The working channel valve may include a valve body having an outer surface and one or more channels. The valve interface mechanism is operable between a first state, a second state, and a third state, wherein the first state includes a suction valve assembly configured to position the suction channel of the valve well in fluid communication with the atmospheric channel; the second state includes a suction valve assembly configured to position the suction channel in fluid communication with the working channel; and the third state includes a suction valve assembly configured to position the suction channel in fluid communication with the balloon channel. In some embodiments, the valve interface mechanism in the first state may be configured to position a first portion of one or more channels in fluid communication with the atmospheric channel and a second portion of one or more channels in fluid communication with the suction channel. In various embodiments, the valve interface mechanism in the second state may be configured to position a first portion of one or more channels in fluid communication with the suction channel and a second portion of one or more channels in fluid communication with the working channel. In various such embodiments, the valve interface mechanism in the second state can be configured to position the outer surface of the valve body to block flow through the atmospheric passage. In one or more embodiments, the valve interface mechanism in the third state can be configured to position the outer surface of the valve body to block flow through the working passage. In one or more such embodiments, the valve interface mechanism in the second state can be configured to position the outer surface of the valve body to block flow through the atmospheric passage.

[0014] In another aspect, the present invention relates to a method. The method may include positioning a suction channel of a valve well in fluid communication with an atmospheric channel of the valve well based on operating a user interface mechanism to a first state. The method may include positioning a suction channel of the valve well in fluid communication with a working channel of the valve well based on operating a user interface mechanism to a second state. The method may include positioning a suction channel of the valve well in fluid communication with a balloon channel of the valve well based on operating a user interface mechanism to a third state. In some embodiments, the method may include rotating an interface member in a first direction to operate the user interface mechanism to the second state, and rotating the interface member in a second direction to operate the user interface mechanism to the third state. In many embodiments, the method may include rotating the interface member to adjust one or more valves in a suction valve assembly via a cam. In several embodiments, the method may include operating one or more of an operating lever, a rocker switch, and an interface member to adjust between one or more of the first, second, and third states.

[0015] In another aspect, the present invention relates to a method. The method may include configuring a valve assembly to place an air input passage of a valve well in fluid communication with an atmospheric passage based on operating a valve interface mechanism to a first state, the valve assembly including a main control valve having a valve body having an outer surface and one or more passages. The method may include configuring the valve assembly to place an air input passage in fluid communication with an air output passage of a valve well based on operating a valve interface mechanism to a second state. The method may include configuring the main control valve of the valve assembly to place a water input passage in fluid communication with a water output passage of a valve well based on operating a valve interface mechanism to a third state. The method may include configuring the main control valve of the valve assembly to place a water input passage in fluid communication with a balloon passage of a valve well based on operating a valve interface mechanism to a fourth state. In some embodiments, the method may include configuring the valve interface mechanism to vertically shift the valve body to transition between one or more of the first and second states, the second and third states, and the third and fourth states. In various embodiments, the method may include configuring the valve interface mechanism to rotate the valve body to switch between one or more of a first state and a second state, a second state and a third state, and a third state and a fourth state. Attached Figure Description

[0016] Non-limiting embodiments of the invention are described by way of example with reference to the illustrative and not scaled-down drawings. In the drawings, each identical or substantially identical component shown is generally represented by a single number. For clarity, not every component is labeled in every figure, nor is every component of every embodiment shown, without requiring further explanation to allow those skilled in the art to understand the invention. In the drawings:

[0017] Figure 1 A block diagram including an exemplary suction valve assembly according to one or more embodiments described herein;

[0018] Figure 2 A block diagram including an exemplary air / water (AW) valve assembly according to one or more embodiments described herein;

[0019] Figures 3A to 3D Various aspects of an exemplary suction valve well according to one or more embodiments described herein are illustrated;

[0020] Figures 4A to 4E Various aspects of an exemplary AW valve well according to one or more embodiments described herein are illustrated;

[0021] Figure 5 An exemplary suction valve assembly according to one or more embodiments described herein is shown;

[0022] Figures 6A to 8C Various aspects of an exemplary valve in a suction valve assembly according to one or more embodiments described herein are shown;

[0023] Figure 9 An exemplary AW valve assembly according to one or more embodiments described herein is shown;

[0024] Figures 10A to 12C Various aspects of an exemplary valve in an AW valve assembly according to one or more embodiments described herein are shown;

[0025] Figures 13A to 13C Various aspects of an exemplary main control valve according to one or more embodiments described herein are illustrated;

[0026] Figure 14 Various aspects of an exemplary AW valve assembly according to one or more embodiments described herein are illustrated;

[0027] Figures 15A to 15C Various aspects of an exemplary valve body according to one or more embodiments described herein are shown;

[0028] Figure 16 Various aspects of an exemplary valve body according to one or more embodiments described herein are shown;

[0029] Figures 17A to 17D Various aspects of an exemplary suction valve assembly according to one or more embodiments described herein are shown. Detailed Implementation

[0030] Various embodiments generally relate to apparatus, systems, and methods for controlling fluid flow in endoscopic systems, such as those enabled by endoscopic ultrasound (EUS) endoscopes. Some embodiments particularly relate to valve assemblies and / or valve interface mechanisms for controlling the flow of air, water, and / or suction through valve wells for endoscope systems. Several embodiments relate to user interface mechanisms and techniques for enabling an operator to interact with and control endoscope valves. Many embodiments relate to mechanisms and techniques for translating interface input movements into valve control movements. In one or more embodiments, the valve assembly and / or valve interface mechanism may be disposable. These and other embodiments are described and claimed.

[0031] Some challenges in controlling fluid flow through an endoscope include the susceptibility of unreliable valves to failure. For example, many valves and valve interface mechanisms are fragile and prone to leakage. These problems can be exacerbated when components are economically designed, constructed, and / or assembled to facilitate disposal after a single use. Alternatively, they can be complicated by wear and tear on reusable components due to repeated use / cleaning cycles. Adding further complexity, the operation of the user interface mechanism can be confusing and require a steep learning curve. For example, fine and non-intuitive movements may be required to accurately control fluid flow. Furthermore, little or no feedback may be provided to indicate how a set of valves is arranged. For example, an operator may not be able to easily discern via the user interface mechanism whether a set of valves is arranged to provide suction to the working channel or the balloon channel. These and other factors can make devices, systems, and methods for controlling fluid flow through an endoscope difficult to use, inaccurate, inefficient, and unreliable, resulting in limited applicability and / or uncertain results. Such limitations can significantly reduce the reliability, ergonomics, and intuitiveness of flow control and the procedures performed in endoscopy, leading to reduced usability, poor results, excessive fatigue, and lost revenue.

[0032] The various embodiments described herein include one or more components of a valve assembly, such as a valve and / or a valve interface mechanism, which provide reliable and intuitive control over fluid flow through an endoscope. In several embodiments, the components can provide reliable operation while offering sufficient values ​​for single-use (e.g., single-use). In many embodiments, the components can provide an accurate and intuitive interface to enhance the operator experience. For example, embodiments may utilize one or more of up / down, back / forward, lateral, and rotational interfaces to provide ergonomic and intuitive control over fluid flow through an endoscope. Some such embodiments may include one or more interface elements, such as push / pull switches, bellows, rotary switches, knobs, buttons, and toggle switches. In many embodiments, one or more of the components can provide / enable haptic feedback. For example, one or more components of a valve interface mechanism can provide haptic or haptic feedback to indicate how a set of valves is arranged (e.g., arranged to allow / block flow between various channels). In some examples, the force used to operate the user interface mechanism can vary to indicate transitions between valve states. In various embodiments, haptic feedback may arise due to contact between different components of the valve assembly, such as due to received input.

[0033] In various embodiments, one or more of the components can be designed to simplify manufacturability. For example, the positioning of one or more biasing members can simplify component assembly. In these and other ways, the components / technologies described herein can improve operator experience, reduce learning curves, increase reliability, and / or reduce manufacturing complexity through the implementation of more efficient and valuable means, systems, and methods for controlling fluid flow in an endoscopic system. In many embodiments, one or more of the advantageous features can result in several technical effects and advantages over conventional techniques, including increased capability and improved adaptability.

[0034] This invention is not limited to the specific embodiments described. The terminology used herein is for describing specific embodiments only and is not intended to be limiting beyond the scope of the appended claims. Unless otherwise specified, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0035] While embodiments of the invention may be described with specific reference to particular medical devices and systems (e.g., endoscopes), it should be understood that such medical devices and systems can be used in a variety of medical procedures requiring the navigation of one or more accessory instruments through conduits, lumens, or vascular anatomy, including, for example, interventional radiology, balloon angioplasty, thrombolysis, angiography, endoscopic retrograde cholangiopancreatography (ERCP), etc. The disclosed medical devices and systems can also be inserted via different access points and routes, such as percutaneously, endoscopically, laparoscopically, or some combination thereof.

[0036] As used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context clearly indicates otherwise. It will also be understood that, when used herein, the terms “comprising” and / or “including” or “containing” and / or “comprise” indicate the presence of the stated feature, region, step, element, and / or component, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and / or combinations thereof.

[0037] As used herein, the term "distal" refers to the end furthest from the medical professional / operator when the device is inserted into the patient, while the term "proximal" refers to the end closest to the medical professional when the device is inserted into the patient.

[0038] Referring now to the accompanying drawings, wherein the same reference numerals are used to refer to the same elements. In the following description, numerous specific details are set forth for purposes of explanation to provide a thorough understanding thereof. However, it will be apparent that novel embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description. It is intended to cover all modifications, equivalents, and substitutions falling within the scope of the claims.

[0039] Figure 1 and Figure 2Block diagrams of exemplary valve assemblies in environments 100, 200 according to one or more embodiments described herein are shown. In some embodiments, one or more components of environment 100 and / or environment 200 may be the same as or similar to one or more other components described herein. Environment 100 may include a suction valve assembly 102 having a suction valve well 104, a suction valve assembly 118, and a valve interface mechanism 126. Environment 200 may include an air / water (AW) valve assembly 202 having an AW valve well 204, an AW valve assembly 218, and a valve interface mechanism 226. In one or more embodiments described herein, various components of the suction valve assembly 102 and / or the AW valve assembly 202 may interact to provide reliable and intuitive control of fluid flow through the endoscope system. For example, one or more components of valve assemblies 118, 218 and valve interface mechanisms 126, 226 may provide reliable and intuitive control of fluid flow through suction valve well 104 or AW valve well 204. In many embodiments, components of a valve assembly can be classified as belonging to, including, implementing one or more of a valve well, valve manifold, and valve interface mechanism, and / or interacting with therewith. For example, a valve interface mechanism may include one or more parts of a valve. Embodiments are not limited to this context.

[0040] In environment 100, suction valve well 104 may include suction channel 106, working channel 108, balloon channel 114, and atmospheric channel 116; suction valve assembly 118 may include working channel valve 120, balloon valve 122, and atmospheric valve 124; and valve interface mechanism 126 may include biasing member assembly 128 and user interface mechanism 130. In various embodiments, the channels of suction valve well 104 may be connected to other components of the endoscope system, such as via piping or conduit. In one or more embodiments described herein, suction channel 106 may be connected to a suction source, working channel 108 may be connected to the working channel of an endoscope device (e.g., an endoscope or a component disposed therethrough), and balloon channel 114 may be connected to the balloon of the endoscope device. In several embodiments, suction valve assembly 118 and valve interface mechanism 126 may control the flow of suction (e.g., caused by negative pressure relative to atmospheric pressure) through suction valve well 104. In several such embodiments, the flow of suction can be controlled to reach suction channel 106 from one of the working channel 108, balloon channel 114, and atmospheric channel 116.

[0041] In environment 200, AW valve well 204 may include an air inlet channel 206, a water inlet channel 208, an air outlet channel 210, a water outlet channel 212, a balloon channel 214, and an atmosphere channel 216; AW valve assembly 218 may include a main control valve 220, an air inlet valve 222, and an atmosphere valve 224; and valve interface mechanism 226 may include a biasing component assembly 228 and a user interface mechanism 230. In various embodiments, the channels of AW valve well 204 may be connected to other components of the endoscope system, such as via piping or conduit. In one or more embodiments described herein, air inlet channel 206 may be connected to a pressurized air source, water inlet channel 208 may be connected to a water source, air outlet channel 210 may be connected to the air channel of an endoscope device (e.g., an endoscope or a component disposed therethrough), water outlet channel 212 may be connected to the water channel of the endoscope device, and balloon channel 214 may be connected to the balloon of the endoscope device. In several embodiments, the AW valve assembly 218 and valve interface mechanism 226 can control the flow of air and water through the AW valve well 204. In several such embodiments, the air flow can be controlled to reach one of the air output channel 210 and atmospheric channel 216 from the air input channel 206, or be blocked, and / or the water flow can be controlled to reach one of the water output channel 212 and balloon channel 214 from the water input channel 208.

[0042] In many embodiments, the suction valve assembly 102 and / or the AW valve assembly 202 may be used in conjunction with an endoscope system, such as an EUS system. In various embodiments, references to a balloon may refer to a balloon in an EUS system that can inflate / contract to facilitate the acquisition of ultrasound images. For example, valve interface mechanism 126 may receive input to control the flow through the suction valve well 104 to cause balloon contraction by arranging the suction valve assembly 118 to place the suction channel 106 in fluid communication with the balloon channel 114. In another example, valve interface mechanism 226 may receive input to control the flow of water through the AW valve well to cause balloon inflation by arranging the AW valve assembly 218 to place the water input channel 208 in fluid communication with the balloon channel 214.

[0043] More generally, in several embodiments, each channel in the valve well may refer to a flow path including the input / output of fluid to / from the corresponding entity. For example, suction channel 106 may refer to a flow path including an input originating from a suction source. In another example, atmospheric channel may refer to a flow path including an output to the atmosphere. More details will follow, such as regarding... Figures 3A to 4EThese and other aspects of the invention are described below. In various embodiments, each valve in the valve assembly may refer to a component that physically controls flow through or between one or more channels. For example, when closed, atmospheric valve 124 may block the flow of air out of atmospheric channel 116. In another case, in a first position or first state, main control valve 220 may position water inlet channel 208 in fluid communication with water outlet channel 212, and in a second position, main control valve 220 may position water inlet channel 208 in fluid communication with balloon channel 214. More details will follow, such as regarding... Figures 5 to 12C These and other aspects of the invention are described herein.

[0044] In various embodiments, the valve interface mechanism may include one or more components to enable control over the arrangement of valves in the valve assembly. In such embodiments, the biasing member assembly may include one or more torsion springs, lever springs, coil springs, baffles, dampers, clips, etc., which provide force to bias one or more components in a particular direction or position. For example, biasing member assembly 228 may allow air to flow out of an atmospheric passage when no input is received. In another or alternative example, biasing member assembly 128 may provide different resistance to the operation of user interface mechanism 130 between different states, such as providing tactile indication of the state. In various embodiments, each of the user interface mechanisms 130, 230 may include one or more of an interface, interface component, user interface, housing, linkage, knob, lever, rocker switch, push / pull switch, knob, button, sheet switch, toggle switch, etc. In some embodiments, the interface, interface component, and / or user interface may be the same or similar.

[0045] In several embodiments, the user interface mechanism may include one or more components to receive input and / or implement valve arrangements. For example, user interface mechanism 130 may include a user interface comprising a lever and one or more linkages to translate movement of the lever into appropriate movement of one or more valves to achieve the desired flow. In various embodiments, the user interface mechanism may include one or more biasing members and / or the biasing members may include one or more user interface mechanisms. It should be understood that one or more components described herein in the context of a suction valve assembly can be used or adapted for use in an AW valve assembly, and vice versa, without departing from the scope of the invention. For example, the rotary user interface mechanism described with respect to a suction valve interface mechanism can be used or adapted for use in an AW valve interface mechanism. These and other aspects of the invention will be described in more detail below.

[0046] Figures 3A to 4EAn exemplary valve well block diagram of an exemplary valve assembly in environments 300A to D, 400A to E, according to one or more embodiments described herein, is shown. In some embodiments, Figures 3A to 4E One or more components may be identical or similar to one or more other components described herein. Environments 300A to D illustrate a suction valve well 304, which includes a suction channel 306, a working channel 308, a balloon channel 314, and an atmospheric channel 315. Environments 400A to E illustrate an AW valve well 404, which has an air inlet channel 406, a water inlet channel 408, an air outlet channel 210, a water outlet channel 212, a balloon channel 214, and an atmospheric channel 216. In one or more embodiments described herein, fluid may flow through the valve well based on an arrangement of one or more valves positioned by one or more valve interface mechanisms. The embodiments are not limited to this context.

[0047] refer to Figure 3A Environment 300A illustrates various components of a suction valve well 304. The suction valve well 304 may include a top 345 and a bottom 335. The suction passage 306, the working passage 308, and the balloon passage 314 may include corresponding inlets / outlets facing the bottom 355, while the atmospheric passage 316 may include an inlet facing the top 345. In the illustrated embodiment, the balloon passage 314 includes a necking portion 334, the working passage 308 includes a well radial aperture 336, and the atmospheric passage 316 includes a lip 332. In one or more embodiments, the necking portion 334 may enable the valve to prevent fluid flow through the balloon passage 314, such as by blocking the necking portion 334. In various embodiments, the well radial aperture 336 may enable the working passage 308 to be positioned in fluid communication with the suction passage 306. In several embodiments, the lip 332 may enable one or more suction valve assemblies and / or valve interface mechanisms to be coupled to the suction valve well 304. In many embodiments, the valve and / or valve interface mechanism can be inserted through the atmospheric passage 316 for assembly of the suction valve assembly. It should be understood that the orientation and / or arrangement of one or more of the passage and / or flow can be modified in various embodiments without departing from the scope of the invention.

[0048] refer to Figure 3BEnvironment 300B illustrates flow 338-1 through suction valve well 304 in atmospheric suction state 305-1. In atmospheric suction state 305-1, flow 338-1 can enter via atmospheric passage 316 and exit via suction passage 306. Furthermore, in some embodiments, flow through balloon passage 314 can be blocked at necking portion 334, and flow through working passage 308 can be blocked at well radial orifice 336. As discussed in more detail below, in operation, fluid communication with the atmosphere can be provided by the access path / channel or created by one or more components (e.g., a valve inserted into atmospheric passage 316). Additionally, one or more components can be used to seal portions of atmospheric passage 316 to facilitate the blocking of fluid communication with the atmosphere by atmospheric valve.

[0049] refer to Figure 3C Environment 300C illustrates the flow 338-2 through the suction valve well 304 in the working channel suction state 305-2. In the working channel suction state 305-2, the flow 338-2 can enter via the working channel 308, pass through the well radial orifice 336, and exit through the suction channel 306. Furthermore, in many embodiments, flow through the balloon channel 314 can be blocked at the necking portion 334, and flow through the atmospheric channel 316 can be blocked.

[0050] refer to Figure 3D Environment 300D illustrates the flow 338-3 through the suction valve well 304 in the balloon channel suction state 305-3. In the balloon channel suction state 305-3, the flow 338-3 can enter via the balloon channel 314 and exit via the suction channel 306. Furthermore, in several embodiments, flow through the working channel 308 can be blocked at the well radial orifice 336, and flow through the atmospheric channel 316 can also be blocked.

[0051] refer to Figure 4AEnvironment 400A illustrates various components of the AW valve well 404. The AW valve well 404 may include a top 445 and a bottom 435 and / or an air section 425 and a water section 435. An air outlet passage 410, an air inlet passage 412, and an atmospheric passage 416 may be located in the air section 425. The atmospheric passage 416 may include a horizontally oriented outlet toward the top 345 and a lip 432, the air inlet passage 412 may include a horizontally oriented inlet toward the top 345, and the air outlet passage 410 may include a vertically oriented outlet toward the top. A water inlet passage 408, a water outlet passage 412, and a balloon passage 414 may be located in the water section 435. The balloon passage 414 may include a vertically oriented outlet immediately adjacent to the center, the water inlet passage 408 may include a vertically oriented inlet toward the bottom 455, and the water outlet passage 412 may include a vertically oriented outlet toward the bottom 455. In several embodiments, the lip 432 may enable one or more suction valve assemblies and / or valve interface mechanisms to be coupled to the AW valve well 404.

[0052] In several embodiments, the diameter of the AW valve well 404 may be varied once or multiple times. For example, a diameter variation combined with the vertical displacement of the valve can enable flow around the valve and through the channels. In the illustrated embodiment, the AW valve well may have a first diameter including the inlet / outlet of air inlet / atmospheric channels 412, 416; a second diameter including the outlet of air outlet channel 410; a third diameter including the inlet / outlet of water inlet / balloon channels 408, 414; and a fourth diameter including the outlet of water outlet channel 412. It should be understood that the orientation, size, and / or arrangement of one or more of the channels and / or flows may be modified in various embodiments without departing from the scope of the invention.

[0053] refer to Figure 4B Environment 400B illustrates flow 438-1 through AW valve well 404 in air escape state 405-1. In air escape state 405-1, flow 438-1 can enter via air inlet channel 406 and exit via atmospheric channel 416. Furthermore, in some embodiments, flow through one or more of the balloon channel 414, water inlet channel 408, and water outlet channel 412 can be blocked.

[0054] refer to Figure 4C Environment 400C illustrates flow 438-2 through AW valve well 404 in air delivery state 405-2. In air delivery state 405-2, flow 438-2 can enter via air inlet channel 406 and exit via air outlet channel 410. Furthermore, in various embodiments, flow through one or more of the atmospheric channel 416, balloon channel 414, water inlet channel 408, and water outlet channel 412 can be blocked.

[0055] refer to Figure 4D Environment 400D illustrates flow 438-3 through AW valve well 404 in water delivery state 405-3. In water delivery state 405-3, flow 438-3 can enter via water inlet channel 408 and exit via water outlet channel 412. Furthermore, in various embodiments, flow through one or more of the balloon channel 414, air outlet channel 410, air inlet channel 406, and atmospheric channel 416 can be blocked. In various embodiments, blocking flow at air inlet channel 406 may cause pressure to build up in the water source supplying water inlet channel 408. In various such embodiments, pressure in the water source may cause fluid to flow from the water source to water inlet channel 408.

[0056] refer to Figure 4E Environment 400E illustrates flow 438-4 through AW valve well 404 in balloon-filled state 405-4. In balloon-filled state 405-4, flow 438-4 can enter via water inlet channel 408 and exit via balloon channel 414. Furthermore, in many embodiments, flow through one or more of water outlet channel 412, air outlet channel 410, air inlet channel 406, and atmospheric channel 413 can be blocked.

[0057] Figures 5 to 12C Various aspects of exemplary valve assemblies in environments 500, 600A, 600B, 700A, 700B, 800A to C, 900, 1000A, 1000B, 1100A, 1100B, 1200A to C, according to one or more embodiments described herein, are illustrated. In some embodiments, Figures 5 to 12C One or more components may be identical or similar to one or more other components described herein. Environments 500 to 800°C illustrate various aspects of a suction valve assembly 518 combined with one or more components of a suction valve well 304. Environments 900 to 1200°C illustrate various aspects of an AW valve assembly 918 combined with one or more components of an AW valve well 404. In one or more embodiments described herein, fluid may flow through the valve well based on an arrangement of one or more valves positioned by one or more valve interface mechanisms. In many embodiments, the one or more valves described herein may include multiple components configured to control fluid flow through the valve well. Embodiments are not limited to this context.

[0058] refer to Figure 5Environment 500 illustrates a suction valve assembly 518 combined with a suction valve well 304. The suction valve assembly 518 may include a working channel valve 520, a balloon valve 522, and an atmospheric valve 524. The working channel valve 520 may include a working channel valve radial orifice 540 that allows fluid to flow out from the bottom of the working channel valve 520 and into the working channel valve 520. In several embodiments, the working channel valve 520 may be inserted into a working channel of the suction valve well 304 to control flow therethrough. The balloon valve 522 may be inserted into a balloon channel of the suction valve well 304 to control flow therethrough. The atmospheric valve 524 may be inserted into an atmospheric channel of the suction valve well 304 to control flow therethrough. In many embodiments, one or more valves in the suction valve assembly 518 may be integrated with one or more portions of the housing and / or valve interface mechanism corresponding to the suction valve well 304.

[0059] In one or more embodiments, the atmospheric valve 524 may be configured to be in fluid communication with the atmosphere from within the suction valve well 304. In many embodiments, the atmospheric valve 524 may include an orifice in the housing. In some embodiments, the atmospheric valve 524 may be operated by covering and / or uncovering the orifice, such as with a finger or other mechanism. In several embodiments, the positioning and / or configuration of the valve in the suction valve assembly 518 may be controlled by one or more components of the corresponding valve interface mechanism. For example, pressing the valve interface mechanism down to a first stop point may simultaneously close the atmospheric suction via a seal on the underside of the cap and open the working channel suction by pushing the center of the working channel valve 520 downward to align the working channel valve radial orifice 540 with the well radial orifice.

[0060] refer to Figure 6A Environment 600A illustrates the balloon valve in open state 615-1. In balloon valve open state 615-1, balloon valve 522 allows flow through balloon passage 314 by allowing flow through the necked portion 334 of balloon passage 314. Reference Figure 6B Environment 600B illustrates a balloon valve sealed state 615-2. In balloon valve sealed state 615-2, balloon valve 522 can prevent flow through balloon passage 314 by blocking flow through the necked portion 334 of balloon passage 314. In another or alternative embodiment, the default state of balloon valve 522 can be balloon valve sealed state 615-2, and balloon valve 522 can be pressed towards the bottom 355 and below the necked portion 334 to transition to balloon valve open state 615-1.

[0061] refer to Figure 7A Environment 700A shows the atmospheric valve in the open state 715-1. In the atmospheric valve open state 715-1, atmospheric valve 524 allows flow through atmospheric passage 316 of suction valve well 304. (Reference) Figure 7B Environment 700B illustrates an atmospheric valve sealed state 715-2. In atmospheric valve sealed state 715-2, atmospheric valve 524 prevents flow through atmospheric passage 316. As discussed in more detail below, in operation, fluid communication with the atmosphere can be provided by an access passage / channel or created by one or more components. Furthermore, one or more components can be used to seal portions of atmospheric passage 316 to facilitate fluid communication with the atmosphere controlled by atmospheric valve 524. In some embodiments, atmospheric valve 524 may include multiple components configured to control fluid communication with the atmosphere.

[0062] refer to Figure 8A Environment 800A illustrates the first sealing state 815-1 of the working channel valve. In the first sealing state 815-1, the working channel valve 520 can prevent flow through the well radial orifice 336 by misaligning the working channel valve radial orifice 540 with the well radial orifice 336 (e.g., where the working channel valve 520 is positioned such that the working channel valve radial orifice 540 is above the well radial orifice 336). Reference Figure 8B Environment 800B shows the working channel valve in the open state 815-2. In the working channel valve open state 815-2, the working channel valve radial orifice 540 and the well radial orifice 336 can be aligned to allow flow through the working channel 308. Reference Figure 8C The environment 800C shows the second sealing state 815-3 of the working channel valve. In the second sealing state 815-3 of the working channel valve, the working channel valve 520 can prevent flow through the well radial hole 336 by misaligning the working channel valve radial hole 540 with the well radial hole 336 (such as in which the working channel valve 520 is positioned such that the working channel radial hole 440 is below the well radial hole 336).

[0063] refer to Figure 9 Environment 900 illustrates an AW valve assembly 918 integrated with an AW valve well 404. The AW valve assembly 918 may include a main control valve 920, an air input valve 922, and an atmospheric valve 924. In several embodiments, the main control valve 920 may be inserted into the AW valve well 404 to at least partially control flow through one or more passages of the AW valve well 404. In various embodiments, the air input valve 922 may be inserted into the air input passage of the AW valve well 404 to control flow therethrough. In many embodiments, the atmospheric valve 924 may be inserted into the atmospheric passage of the AW valve well 404 to control flow therethrough. In many embodiments, one or more valves in the AW valve assembly 918 may be integrated with one or more portions of the housing and / or valve interface mechanism corresponding to the AW valve well 404.

[0064] In one or more embodiments, the atmospheric valve 924 may be configured to be in fluid communication with the atmosphere controlled from within the AW valve well 404. In many embodiments, the atmospheric valve 924 may include an orifice in the housing. In some embodiments, the atmospheric valve 924 may be operated by covering and / or uncovering the orifice, such as with a finger or other mechanism. In several embodiments, the positioning and / or configuration of the valves in the AW valve assembly 918 may be controlled by one or more components. Figure 1 and Figure 2 Block diagrams of exemplary valve assemblies in environments 100, 200 according to one or more embodiments described herein are shown. In some embodiments, one or more components of environment 100 and / or environment 200 may be the same as or similar to one or more other components described herein. Environment 100 may include a suction valve assembly 102 having a suction valve well 104, a suction valve assembly 118, and a valve interface mechanism 126. Environment 200 may include an air / water (AW) valve assembly 202 having an AW valve well 204, an AW valve assembly 218, and a valve interface mechanism 226. In one or more embodiments described herein, various components of the suction valve assembly 102 and / or the AW valve assembly 202 may interact to provide reliable and intuitive control over fluid flow through the endoscope system. For example, one or more components of valve assemblies 118, 218 and valve interface mechanisms 126, 226 may provide reliable and intuitive control over fluid flow through suction valve well 104 or AW valve well 204. In many embodiments, components of a valve assembly can be classified as belonging to, including, implementing one or more of a valve well, valve manifold, and valve interface mechanism, and / or interacting with therewith. For example, a valve interface mechanism may include one or more parts of a valve. Embodiments are not limited to this context.

[0065] In environment 100, suction valve well 104 may include suction channel 106, working channel 108, balloon channel 114, and atmospheric channel 116; suction valve assembly 118 may include working channel valve 120, balloon valve 122, and atmospheric valve 124; and valve interface mechanism 126 may include biasing member assembly 128 and user interface mechanism 130. In various embodiments, the channels of suction valve well 104 may be connected to other components of the endoscope system, such as via piping or conduit. In one or more embodiments described herein, suction channel 106 may be connected to a suction source, working channel 108 may be connected to the working channel of an endoscope device (e.g., an endoscope or a component disposed therethrough), and balloon channel 114 may be connected to the balloon of the endoscope device. In several embodiments, suction valve assembly 118 and valve interface mechanism 126 may control the flow of suction (e.g., caused by negative pressure relative to atmospheric pressure) through suction valve well 104. In several such embodiments, the flow of suction can be controlled to reach suction channel 106 from one of the working channel 108, balloon channel 114, and atmospheric channel 116.

[0066] In environment 200, AW valve well 204 may include an air inlet channel 206, a water inlet channel 208, an air outlet channel 210, a water outlet channel 212, a balloon channel 214, and an atmosphere channel 216; AW valve assembly 218 may include a main control valve 220, an air inlet valve 222, and an atmosphere valve 224; and valve interface mechanism 226 may include a biasing component assembly 228 and a user interface mechanism 230. In various embodiments, the channels of AW valve well 204 may be connected to other components of the endoscope system, such as via piping or conduit. In one or more embodiments described herein, air inlet channel 206 may be connected to a pressurized air source, water inlet channel 208 may be connected to a water source, air outlet channel 210 may be connected to the air channel of an endoscope device (e.g., an endoscope or a component disposed therethrough), water outlet channel 212 may be connected to the water channel of the endoscope device, and balloon channel 214 may be connected to the balloon of the endoscope device. In several embodiments, the AW valve assembly 218 and valve interface mechanism 226 can control the flow of air and water through the AW valve well 204. In several such embodiments, the flow of air can be controlled to proceed from the air input channel 206 to one of the air output channel 210 and the atmospheric channel 216, or be blocked, and / or the flow of water can be controlled to proceed from the water input channel 208 to one of the water output channel 212 and the balloon channel 214, or be blocked.

[0067] In many embodiments, the suction valve assembly 102 and / or the AW valve assembly 202 may be used in conjunction with an endoscope system, such as an EUS system. In various embodiments, references to a balloon may refer to a balloon in an EUS system that can inflate / contract to provide a medium to facilitate the transmission of sound waves and the capture of ultrasound images. For example, valve interface mechanism 126 may receive input to control the flow through the suction valve well 104 to cause balloon contraction by arranging the suction valve assembly 118 to place the suction channel 106 in fluid communication with the balloon channel 114. In another example, valve interface mechanism 226 may receive input to control the flow of water through the AW valve well to cause balloon inflation by arranging the AW valve assembly 218 to place the water input channel 208 in fluid communication with the balloon channel 214. In other embodiments, one or more components of the valve assembly for AW and / or suction may be implemented in configurations that do not require or include a balloon, such as video endoscopes with ultrasound capabilities.

[0068] More generally, in several embodiments, each channel in the valve well may refer to a flow path including the input / output of fluid to / from the corresponding entity. For example, suction channel 106 may refer to a flow path including an input originating from a suction source. In another example, atmospheric channel may refer to a flow path including an output to the atmosphere. More details will follow, such as regarding... Figures 3A to 4E These and other aspects of the invention are described below. In various embodiments, each valve in the valve assembly may refer to a component that physically controls flow through or between one or more channels. For example, when closed, atmospheric valve 124 may block the flow of air out of atmospheric channel 116. In another case, in a first position or first state, main control valve 220 may position water inlet channel 208 in fluid communication with water outlet channel 212, and in a second position, main control valve 220 may position water inlet channel 208 in fluid communication with balloon channel 214. More details will follow, such as regarding... Figures 5 to 12C These and other aspects of the invention are described herein.

[0069] In various embodiments, the valve interface mechanism may include one or more components to enable control over the arrangement of valves in the valve assembly. In such embodiments, the biasing member assembly may include one or more torsion springs, lever springs, coil springs, baffles, dampers, clips, etc., which provide force to bias one or more components in a particular direction or position. For example, biasing member assembly 228 may allow air to flow out of an atmospheric passage when no input is received. In another or alternative example, biasing member assembly 128 may provide different resistance to the operation of user interface mechanism 130 between different states, such as providing tactile indication of the state. In various embodiments, each of the user interface mechanisms 130, 230 may include one or more of an interface, interface component, user interface, housing, linkage, knob, lever, rocker switch, push / pull switch, knob, button, sheet switch, toggle switch, etc. In some embodiments, the interface, interface component, and / or user interface may be the same or similar.

[0070] In several embodiments, the user interface mechanism may include one or more components to receive input and / or implement valve arrangements. For example, user interface mechanism 130 may include a user interface comprising a lever and one or more linkages to translate movement of the lever into appropriate movement of one or more valves to achieve the desired flow. In various embodiments, the user interface mechanism may include one or more biasing members and / or the biasing members may include one or more user interface mechanisms. It should be understood that one or more components described herein in the context of a suction valve assembly can be used or adapted for use in an AW valve assembly, and vice versa, without departing from the scope of the invention. For example, the rotary user interface mechanism described with respect to a suction valve interface mechanism can be used or adapted for use in an AW valve interface mechanism. These and other aspects of the invention will be described in more detail below.

[0071] Figures 3A to 4E An exemplary valve well block diagram of an exemplary valve assembly in environments 300A to D, 400A to E, according to one or more embodiments described herein, is shown. In some embodiments, Figures 3A to 4E One or more components may be identical or similar to one or more other components described herein. Environments 300A to D illustrate a suction valve well 304, which includes a suction channel 306, a working channel 308, a balloon channel 314, and an atmospheric channel 315. Environments 400A to E illustrate an AW valve well 404, which has an air inlet channel 406, a water inlet channel 408, an air outlet channel 210, a water outlet channel 212, a balloon channel 214, and an atmospheric channel 216. In one or more embodiments described herein, fluid may flow through the valve well based on an arrangement of one or more valves positioned by one or more valve interface mechanisms. The embodiments are not limited to this context.

[0072] refer to Figure 3A Environment 300A illustrates various components of a suction valve well 304. The suction valve well 304 may include a top 345 and a bottom 335. The suction passage 306, the working passage 308, and the balloon passage 314 may include corresponding inlets / outlets facing the bottom 355, while the atmospheric passage 316 may include an inlet facing the top 345. In the illustrated embodiment, the balloon passage 314 includes a necking portion 334, the working passage 308 includes a well radial aperture 336, and the atmospheric passage 316 includes a lip 332. In one or more embodiments, the necking portion 334 may enable the valve to prevent fluid flow through the balloon passage 314, such as by blocking the necking portion 334. In various embodiments, the well radial aperture 336 may enable the working passage 308 to be positioned in fluid communication with the suction passage 306. In several embodiments, the lip 332 may enable one or more suction valve assemblies and / or valve interface mechanisms to be coupled to the suction valve well 304. In many embodiments, the valve and / or valve interface mechanism can be inserted through the atmospheric passage 316 for assembly of the suction valve assembly. It should be understood that the orientation and / or arrangement of one or more of the passage and / or flow can be modified in various embodiments without departing from the scope of the invention.

[0073] refer to Figure 3B Environment 300B illustrates flow 338-1 through suction valve well 304 in atmospheric suction state 305-1. In atmospheric suction state 305-1, flow 338-1 can enter via atmospheric passage 316 and exit via suction passage 306. For example, suction passage 306 can be an input in the handle of a medical endoscope connected to a vacuum system, such as for medical, home, and / or mobile devices.

[0074] Furthermore, in some embodiments, flow through the balloon passage 314 may be blocked at the necking portion 334, and flow through the working passage 308 may be blocked at the well radial orifice 336. As discussed in more detail below, in operation, fluid communication with the atmosphere may be provided by an access passage / channel or created by one or more components (e.g., a valve inserted into the atmospheric passage 316). Additionally, one or more components may be used to seal portions of the atmospheric passage 316 to facilitate the blocking of fluid communication with the atmosphere by an atmospheric valve.

[0075] refer to Figure 3CEnvironment 300C illustrates the flow 338-2 through the suction valve well 304 in the working channel suction state 305-2. In the working channel suction state 305-2, the flow 338-2 can enter via the working channel 308, pass through the well radial orifice 336, and exit through the suction channel 306. Furthermore, in many embodiments, flow through the balloon channel 314 can be blocked at the necking portion 334, and flow through the atmospheric channel 316 can be blocked.

[0076] refer to Figure 3D Environment 300D illustrates the flow 338-3 through the suction valve well 304 in the balloon channel suction state 305-3. In the balloon channel suction state 305-3, the flow 338-3 can enter via the balloon channel 314 and exit via the suction channel 306. Furthermore, in several embodiments, flow through the working channel 308 can be blocked at the well radial orifice 336, and flow through the atmospheric channel 316 can also be blocked.

[0077] refer to Figure 4A Environment 400A illustrates various components of the AW valve well 404. The AW valve well 404 may include a top 445 and a bottom 435 and / or an air section 425 and a water section 435. An air outlet passage 410, an air inlet passage 412, and an atmospheric passage 416 may be located in the air section 425. The atmospheric passage 416 may include a horizontally oriented outlet toward the top 345 and a lip 432, the air inlet passage 412 may include a horizontally oriented inlet toward the top 345, and the air outlet passage 410 may include a vertically oriented outlet toward the top. A water inlet passage 408, a water outlet passage 412, and a balloon passage 414 may be located in the water section 435. The balloon passage 414 may include a vertically oriented outlet immediately adjacent to the center, the water inlet passage 408 may include a vertically oriented inlet toward the bottom 455, and the water outlet passage 412 may include a vertically oriented outlet toward the bottom 455. In several embodiments, the lip 432 may enable one or more suction valve assemblies and / or valve interface mechanisms to be coupled to the AW valve well 404.

[0078] In several embodiments, the diameter of the AW valve well 404 may be varied once or multiple times. For example, a diameter variation combined with the vertical displacement of the valve can enable flow around the valve and through the channels. In the illustrated embodiment, the AW valve well may have a first diameter including the inlet / outlet of air inlet / atmospheric channels 412, 416; a second diameter including the outlet of air outlet channel 410; a third diameter including the inlet / outlet of water inlet / balloon channels 408, 414; and a fourth diameter including the outlet of water outlet channel 412. It should be understood that the orientation, size, and / or arrangement of one or more of the channels and / or flows may be modified in various embodiments without departing from the scope of the invention.

[0079] refer to Figure 4B Environment 400B illustrates flow 438-1 through AW valve well 404 in air escape state 405-1. In air escape state 405-1, flow 438-1 can enter via air inlet channel 406 and exit via atmospheric channel 416. Furthermore, in some embodiments, flow through one or more of the balloon channel 414, water inlet channel 408, and water outlet channel 412 can be blocked.

[0080] refer to Figure 4C Environment 400C illustrates flow 438-2 through AW valve well 404 in air delivery state 405-2. In air delivery state 405-2, flow 438-2 can enter via air inlet channel 406 and exit via air outlet channel 410. Furthermore, in various embodiments, flow through one or more of the atmospheric channel 416, balloon channel 414, water inlet channel 408, and water outlet channel 412 can be blocked.

[0081] refer to Figure 4D Environment 400D illustrates flow 438-3 through AW valve well 404 in water delivery state 405-3. In water delivery state 405-3, flow 438-3 can enter via water inlet channel 408 and exit via water outlet channel 412. Furthermore, in various embodiments, flow through one or more of the balloon channel 414, air outlet channel 410, air inlet channel 406, and atmospheric channel 416 can be blocked. In various embodiments, blocking flow at air inlet channel 406 may cause pressure to build up in the water source supplying water inlet channel 408. In various such embodiments, pressure in the water source may cause fluid to flow from the water source to water inlet channel 408.

[0082] refer to Figure 4EEnvironment 400E illustrates flow 438-4 through AW valve well 404 in balloon-filled state 405-4. In balloon-filled state 405-4, flow 438-4 can enter via water inlet channel 408 and exit via balloon channel 414. Furthermore, in many embodiments, flow through one or more of water outlet channel 412, air outlet channel 410, air inlet channel 406, and atmospheric channel 413 can be blocked.

[0083] Figures 5 to 12C Various aspects of exemplary valve assemblies in environments 500, 600A, 600B, 700A, 700B, 800A to C, 900, 1000A, 1000B, 1100A, 1100B, 1200A to C, according to one or more embodiments described herein, are illustrated. In some embodiments, Figures 5 to 12C One or more components may be identical or similar to one or more other components described herein. Environments 500 to 800°C illustrate various aspects of a suction valve assembly 518 combined with one or more components of a suction valve well 304. Environments 900 to 1200°C illustrate various aspects of an AW valve assembly 918 combined with one or more components of an AW valve well 404. In one or more embodiments described herein, fluid may flow through the valve well based on an arrangement of one or more valves positioned by one or more valve interface mechanisms. In many embodiments, the one or more valves described herein may include multiple components configured to control fluid flow through the valve well. Embodiments are not limited to this context.

[0084] refer to Figure 5 Environment 500 illustrates a suction valve assembly 518 associated with a suction valve well 304. The suction valve assembly 518 may include a working channel valve 520, a balloon valve 522, and an atmospheric valve 524. The working channel valve 520 may include a working channel valve radial orifice 540 that allows fluid to flow out from the bottom of the working channel valve 520 and into the working channel valve 520. In several embodiments, the working channel valve 520 may be inserted into a working channel of the suction valve well 304 to control flow therethrough. The balloon valve 522 may be inserted into a balloon channel 314 of the suction valve well 304 to control flow therethrough. The atmospheric valve 524 may be inserted into an atmospheric channel of the suction valve well 304 to control flow therethrough. In many embodiments, one or more valves in the suction valve assembly 518 may be integrated with one or more portions of the housing and / or valve interface mechanism corresponding to the suction valve well 304.

[0085] In one or more embodiments, the atmospheric valve 524 may be configured to be in fluid communication with the atmosphere controlled from within the suction valve well 304. In many embodiments, the atmospheric valve 524 may include an orifice in the housing. In some embodiments, the atmospheric valve 524 may be operated by covering and / or uncovering the orifice, such as with a finger or other mechanism. In several embodiments, the positioning and / or configuration of the valve in the suction valve assembly 518 may be controlled by one or more components of a corresponding valve interface mechanism. For example, pressing the valve interface mechanism down to a first stop point may simultaneously close the atmospheric suction via a seal on the underside of the cap and open the working channel suction by pushing down the center of the working channel valve 520 to align the working channel valve radial orifice 540 with the well radial orifice.

[0086] refer to Figure 6A Environment 600A illustrates the balloon valve in open state 615-1. In balloon valve open state 615-1, balloon valve 522 allows flow through balloon passage 314 by allowing flow through the necked portion 334 of balloon passage 314. Reference Figure 6B Environment 600B illustrates a balloon valve sealed state 615-2. In balloon valve sealed state 615-2, balloon valve 522 can prevent flow through balloon passage 314 by blocking flow through the necked portion 334 of balloon passage 314. In another or alternative embodiment, the default state of balloon valve 522 can be balloon valve sealed state 615-2, and balloon valve 522 can be pressed towards the bottom 355 and below the necked portion 334 to transition to balloon valve open state 615-1.

[0087] refer to Figure 7A Environment 700A shows the atmospheric valve in the open state 715-1. In the atmospheric valve open state 715-1, atmospheric valve 524 allows flow through atmospheric passage 316 of suction valve well 304. (Reference) Figure 7B Environment 700B illustrates an atmospheric valve sealed state 715-2. In atmospheric valve sealed state 715-2, atmospheric valve 524 prevents flow through atmospheric passage 316. As discussed in more detail below, in operation, fluid communication with the atmosphere can be provided by an access passage / channel or created by one or more components. Furthermore, one or more components can be used to seal portions of atmospheric passage 316 to facilitate fluid communication with the atmosphere controlled by atmospheric valve 524. In some embodiments, atmospheric valve 524 may include multiple components configured to control fluid flow with the atmosphere.

[0088] refer to Figure 8AEnvironment 800A illustrates the first sealing state 815-1 of the working channel valve. In the first sealing state 815-1, the working channel valve 520 can prevent flow through the well radial orifice 336 by misaligning the working channel valve radial orifice 540 with the well radial orifice 336, such that the working channel valve 520 is positioned such that the working channel valve radial orifice 540 is above the well radial orifice 336. Reference Figure 8B Environment 800B illustrates the working channel valve in the open state 815-2. In the working channel valve open state 815-2, the working channel valve radial orifice 540 and the well radial orifice 336 can be aligned to allow suction flow through the working channel 308. For example, flow can enter through the bottom of the working channel valve 520 and exit through the well radial orifice 336. Reference Figure 8C The environment 800C shows the second sealing state 815-3 of the working channel valve. In the second sealing state 815-3 of the working channel valve, the working channel valve 520 can prevent flow through the well radial hole 336 by misaligning the working channel valve radial hole 540 with the well radial hole 336, such that the working channel valve 520 is positioned such that the working channel radial hole 540 is below the well radial hole 336.

[0089] refer to Figure 9 Environment 900 illustrates an AW valve assembly 918 integrated with an AW valve well 404. The AW valve assembly 918 may include a main control valve 920, an air input valve 922, and an atmospheric valve 924. In several embodiments, the main control valve 920 may be inserted into the AW valve well 404 to at least partially control flow through one or more passages of the AW valve well 404. In various embodiments, the air input valve 922 may be inserted into the air input passage of the AW valve well 404 to control flow therethrough. In many embodiments, the atmospheric valve 924 may be inserted into the atmospheric passage of the AW valve well 404 to control flow therethrough. In many embodiments, one or more valves in the AW valve assembly 918 may be integrated with one or more portions of the housing and / or valve interface mechanism corresponding to the AW valve well 404.

[0090] In one or more embodiments, the atmospheric valve 924 may be configured to be in fluid communication with the atmosphere controlled from within the AW valve well 404. In many embodiments, the atmospheric valve 924 may include an orifice in the housing. In some embodiments, the atmospheric valve 924 may be operated by covering and / or uncovering the orifice, such as with a finger or other mechanism. In several embodiments, the positioning and / or configuration of the valve in the AW valve assembly 918 may be controlled by one or more components of a corresponding valve interface mechanism. In some embodiments, one or more portions of the atmospheric passage 416 may be included in the main control valve 920. In some such embodiments, the atmospheric passage 416 may include one or more passages through at least a portion of the main control valve 920. For example, the atmospheric passage 416 may include an orifice in the top of the main control valve 920 that is in fluid communication with a radial orifice in the main control valve 920 adjacent to the air inlet passage 406. In such an example, covering the orifice may direct airflow into the air outlet passage 410 and downward along the working passage of the endoscope.

[0091] refer to Figure 10A The environment 1000A shows the atmospheric valve in the open state. In the open state, atmospheric valve 924 allows flow through the atmospheric passage of valve well 404. (Reference) Figure 10B Environment 1000B illustrates atmospheric valve sealing state 1015-2. In atmospheric valve sealing state 1015-2, atmospheric valve 924 prevents flow through the atmospheric passage of AW valve well 404. As discussed in more detail below, in operation, fluid communication with the atmosphere can be provided by an access passage / channel or created by one or more components (e.g., main control valve 920). Furthermore, one or more components can be used to seal portions of atmospheric passage 316 to facilitate fluid communication with the atmosphere controlled by atmospheric valve 924. In some embodiments, atmospheric valve 924 may include multiple components configured to control fluid communication with the atmosphere.

[0092] refer to Figure 11A Environment 1100A shows the air input valve in open state 1115-1. In air input valve open state 1115-1, air input valve 522 allows flow through the air input passage of AW valve well 404. Reference Figure 11B Environment 1100B illustrates an air input valve sealed state 1115-2. In the air input valve sealed state 1115-2, the air input valve 922 prevents flow through the air input passage of the AW valve well 404. In some embodiments, sealing the air input passage may cause a fluid source (e.g., a water reservoir) to be pressurized, thereby causing / causing fluid to flow into the AW valve well 404 via the water input passage 408.

[0093] refer to Figure 12AEnvironment 1200A shows the main valve sealed state 1215-1. In the main valve sealed state 1215-1, the main control valve 920 prevents flow through one or more of the balloon passage 414, water inlet passage 408, and water outlet passage 412. Reference Figure 12B Environment 1200B illustrates the main valve water output state 1215-2. In the main valve water output state 1215-2, the main control valve 920 can be positioned to block flow through the balloon passage 414 and allow flow from the water inlet passage 408 to the water outlet passage 412. In various embodiments, the main control valve 920 can control flow using a diameter variation in the AW valve well 404. Reference Figure 12C The environment 1200C illustrates the main valve balloon filling state 1215-3. In the main valve balloon filling state 1215-3, the main control valve 920 can be positioned to block flow through the water output passage 412 and allow flow from the water input passage 408 to the balloon passage 414. In various embodiments, one or more features of the main control valve 920 can function as a valve for multiple passages. In some embodiments, one or more features of the main control valve 920 may include one or more passages or one or more portions thereof. For example, the main control valve 920 may include an atmospheric passage 416.

[0094] Figures 13A to 13C Various aspects of an exemplary main control valve 1320 in environments 1300A, 1300B, and 1300C according to one or more embodiments described herein are shown. In many embodiments, cross-sections of one or more components may be shown in environments 1300A, 1300B, and 1300C. In some embodiments, Figures 13A to 13C One or more components may be identical or similar to one or more other components described herein. In environment 1300A, the illustrated portion of the main control valve 1320 may include a valve body 1350 and alignment features 1356-1, 1356-2. Furthermore, the valve body 1350 may include an outer surface 1351, one or more manifold passages 1352 and manifold ports 1354-1, 1354-2, 1354-3, 1354-4 (or manifold port 1354). In environment 1300B, the main control valve 1320 may include an atmospheric passage 1316, a radial air orifice 1366, alignment feature 1354-1, valve body 1350 and features 1388-1, 1388-2, 1388-3, 1388-4 (or feature 1388). Furthermore, the valve body 1350 may include an outer surface 1351 (on... Figure 13B (shown in the transparent side portion), one or more manifold channels 1352 (in) Figure 13BThe manifold ports 1354-1, 1354-2, 1354-3, and 1354-4 (or manifold port 1354) are shown as opaque. In environment 1300C, the valve body 1350, combined with the AW valve well 1304, is shown as part of the AW valve assembly 1302. The shown portion of the AW valve well 1304 includes a balloon passage 1314, a water inlet passage 1306, and a water outlet passage 1312. In many embodiments, one or more manifold passages 1350 may position the manifold port 1354 in fluid communication. In one or more embodiments described herein, the valve body 1350 of the main control valve 1320 may be vertically displaced and / or rotated to control fluid flow through the valve well 1304. The embodiments are not limited to this context.

[0095] Referring to environment 1300A, in various embodiments, the main control valve 1320 may include a valve body 1350 having one or more ports designed to align with one or more passages in a valve well to control flow through the valve well. In many embodiments, the main control valve may include one or more alignment features to guide the installation and / or assembly of the valve assembly. In various embodiments, the alignment feature may include a portion of the main control valve that mates with one or more other parts of the valve assembly, such as a portion of the valve body that mates with a portion of the valve well. Sometimes, the alignment feature may guide movement of one or more portions of the main control valve 1320. Alignment features 1356-2 may be provided on the valve body 1350. In some embodiments, the alignment feature may utilize one or more features of the valve well (e.g., a timing orifice and / or a snap-fit ​​engagement in the air input passage).

[0096] Referring to environment 1300B, in many embodiments, the main control valve 1320 may include one or more features configured to enable the main control valve to interact with other components of the valve assembly. For example, feature 1388-1 may be a biasing member, such as a spring, providing a support point or connection point. In another example, a radial seal may be disposed between features 1388-2, 1388-3 to create a seal with one or more components of the valve well and / or valve interface mechanism. In many such examples, this seal may facilitate control of fluid flow through the valve well. In some embodiments, a radial air orifice 1366 may be in fluid communication with an atmospheric passage 1316. In some such embodiments, the main control valve 1320 may include a threaded section immediately adjacent to the atmospheric passage 1316 to enable connection of an atmospheric valve and / or valve interface mechanism. In some embodiments, one or more features of the main control valve may be coupled to a linkage, cup-shaped, and / or cap-shaped component.

[0097] Referring to an environment of 1300°C, in several embodiments, the valve body 1350 may utilize a solid shaft, manufactured with sufficient precision to control flow through the valve well. In various embodiments, the valve body 1350 may completely fill one or more portions of the valve well 1304. In the illustrated embodiments, manifold ports 1354-3, 1354-4 of the valve body 1350 may be aligned with the water inlet channel 1306 and the water outlet channel 1312, respectively, such that flow 1388 enters the water inlet channel 1306 and exits the water outlet channel 1312. In various such embodiments, the outer surface 1351 of the valve body 1350 may prevent flow 1338 from entering the balloon channel 1314. In some embodiments, the valve body 1350 may be vertically displaced such that manifold ports 1354-1, 1354-2 are aligned with the balloon channel 1314 and the water inlet channel 1306, respectively. In some such embodiments, the outer surface 1351 of the valve body 1350 can block the flow 1338 from entering the water outlet passage 1312. In some embodiments, the outer surface of the valve body 1350 (in conjunction with the valve body 1350 itself) can block the flow 1388 from entering the upper part of the valve, which directs airflow.

[0098] In many embodiments, the outer surface 1351 of the valve body 1350 may mate with one or more portions of the valve well to create a seal therebetween to block / control flow. For example, the outer surface 1351 may block flow 1338 from seeping between the AW valve well 1304 and the valve body 1350. In such an example, this prevents a portion of flow 1388 from leaking through the balloon channel 1314. In some embodiments, the channel may be used in conjunction with a seal (e.g., an O-ring). In various embodiments, one or more portions of the main control valve 1320 may be made of 3D-printed metal or plastic. In some embodiments, one or more portions of the main control valve 1320 may be constructed by drilling a central bore in a solid shaft (where multiple radial bores are drilled and portions of the central bore are plugged to create individual channels). In various embodiments, the one or more channels described herein may include one or more of vertical orientation, horizontal orientation, circumferential orientation, helical orientation, diagonal orientation, etc., to control flow through the valve well.

[0099] Figure 14 Various aspects of an exemplary AW valve assembly 1402 in an environment 1400 according to one or more embodiments described herein are shown. In many embodiments, cross-sections of one or more components may be shown in the environment 1400. In some embodiments, Figure 14One or more components may be identical or similar to one or more other components described herein. In environment 1400, AW valve assembly 1402 may include a main control valve 1420 in conjunction with AW valve well 1404 and flap switch 1462. In many embodiments, flap switch 1462 may be included in a valve interface mechanism (e.g., as a biasing member and / or user interface member). In other embodiments, flap switch 1462 may be coupled to main control valve 1420. In various embodiments, flap switch 1462 may create a seal with one or more other components of AW valve assembly 1402 (such as AW valve well 1404, one or more valves and / or valve interface mechanisms).

[0100] The AW valve assembly 1402 of environment 1400 can provide tactile feedback via a configuration of two springs. For example, rigid components can contact each other to create tactile feedback. In some such embodiments, contact can occur in the upper portion of the AW valve assembly 1402. In one or more embodiments described herein, the flap switch 1462 can create tactile feedback via an interface (e.g., an interface member), such as by inversion. In one or more embodiments, the flap switch 1462 may include one or more biasing members and / or operate as one or more biasing members. In some embodiments, the flap switch 1462 can bias the main control valve in a particular position or state. The embodiments are not limited to this context.

[0101] In several embodiments, the flip-flop switch 1462 may be configured to position the valve body of the main control valve 1420 in a first state when uncompressed and in a second state when compressed. In some embodiments, the first state may include an open and / or non-inverted position, and the second state may include a sealed and / or inverted position. In one or more embodiments, the main control valve 1420 may include one or more air passages (e.g., manifold passages) that allow fluid to flow from the radial air orifice 1452 and the air outlet passage 1410. In one or more such embodiments, the flip-flop switch 1462 may position-controlled flow through the radial air orifice 1452 and / or openings to one or more passages. For example, when the flip-flop switch 1462 is inverted as the main control valve 1420 moves downward, one or more flow openings located below the radial air orifice 1452 (e.g., the opposite side of the flip-flop switch 1462) may be exposed and / or opened.

[0102] In one or more embodiments, the sheet switch 1462 can determine the air path based on whether the atmospheric passage 1416 is sealed (e.g., using a finger). This can be an operation independent of those operations utilizing the manifold passage 1452 and determining the water path. Water operation can be achieved by depressing the main control valve 1420 to first and second stop points (e.g., water delivery state and balloon filling state, respectively).

[0103] In many embodiments, the AW valve assembly 1402 may be used in conjunction with one or more additional components. For example, a housing may engage with the lip of the AW valve well 1404. In another example, an air input valve, such as a radial seal, may be used to control flow through the air input passage 1406. In many embodiments, additional components may create a seal between the AW valve well 1404 and the main control valve 1420. For example, additional components may create a radial seal on the main control valve 1420 between the openings of the radial air orifice 1452 and the atmospheric passage 1416. In many such examples, the main control valve 1420 may be able to slide up and down while maintaining the radial seal. In several embodiments, additional components may create a sealed enclosure with the AW valve well 1404. In various embodiments, the main control valve 1420 may extend from the sealed enclosure.

[0104] In other or alternative embodiments, the main control valve 1420 may be configured to place the water inlet passage 1408 in fluid communication with the water outlet passage 1412 when in a non-inverted state, and to place the water inlet passage 1408 in fluid communication with the balloon passage 1414 when in an inverted state. In several embodiments, a flapper switch 1462 may seal against the AW valve well 1404 to block the flow of air downward toward the air outlet passage 1410. Alternatively, the flapper switch 1462 may not block the flow of water to the atmospheric passage. Instead, the outer surface of the main control valve 1420 may seal against one or more portions of the AW valve well 1404. In some embodiments, the flapper switch may create a seal with the radial air orifice 1452, such as for blocking the flow to the atmospheric passage 1416. In some such embodiments, the flapper switch 1462 may create a seal with the radial air orifice 1352 only when inverted or non-inverted.

[0105] Figures 15A to 15C Various aspects of an exemplary valve body 1550 in environments 1500A, 1500B, and 1500C according to one or more embodiments described herein are shown. In many embodiments, cross-sections of one or more components may be shown in environments 1500A, 1500B, and 1500C. In some embodiments, Figures 15A to 15COne or more components may be the same as or similar to one or more other components described herein. Environments 1500A, 1500B, and 1500C may include a valve body 1550 having a top 1545, a bottom 1555, an outer surface 1551, and manifold passages 1552-1, 1552-2, and 1552-3. In environment 1500A, the valve body 1550 may be in a state where flow 1538-1 passes through manifold passage 1552-1. In environment 1500B, the valve body 1550 may be in a state where flow 1538-2 passes through manifold passage 1552-2. In the illustrated embodiment, the valve body 1550 may undergo a clockwise rotation 1580-1 to switch from flow 1538-1 to flow 1538-2. In environment 1500C, the valve body 1550 may be in a state where flow 1538-3 passes through manifold passage 1552-3. In the illustrated embodiment, valve body 1550 may undergo a clockwise rotation 1580-2 to switch from flow 1538-2 to flow 1538-3. The embodiment is not limited to this context.

[0106] In various embodiments, the valve body may include one or more channels to control flow through the valve well. In one or more embodiments, manifold channel 1552-1 may be associated with an air inlet channel of the AW valve assembly, manifold channel 1552-2 may be associated with a water inlet channel and a water outlet channel, and manifold channel 1552-3 may be associated with a water inlet channel and a balloon channel. In many embodiments, the valve body may utilize rotation to transition between different states. In many such embodiments, the valve interface mechanism may translate user input into rotation to transition between different states.

[0107] In some embodiments, the valve assembly can utilize four states. In a first state (e.g., an air escaping state), the valve body 1550 can block flow through the air output passage using its outer surface 1551. Alternatively, the outer surface 1551 can also block flow through one or more of the balloon passage, water inlet passage, and water outlet passage in the first state. Referring to environment 1500A, in a second state (e.g., an air delivery state), the valve body 1550 can position the air output passage in fluid communication with the air inlet passage via manifold passage 1552-1 to facilitate flow 1538-1. Alternatively, the outer surface 1551 can also block flow through one or more of the balloon passage, water inlet passage, and water outlet passage in the second state. In many embodiments, in the second state, a portion of the manifold passage 1552-1 (e.g., a manifold port) can be aligned with the air output passage. In various embodiments, a first rotation (e.g., clockwise rotation) can transition the valve body 1550 from the first state to the second state.

[0108] Referring to environment 1500B, in a third state (e.g., a water delivery state), valve body 1550 can be positioned in fluid communication with a water output channel via manifold passage 1552-2. Additionally or alternatively, outer surface 1551 can block flow through one or more of the balloon passage and air input channel in the third state. In many embodiments, in the third state, a first portion (e.g., a first manifold port) of manifold passage 1552-2 can be aligned with the water input channel, and a second portion (e.g., a second manifold port) of the manifold passage can be aligned with the water output channel. In various embodiments, a second rotation (e.g., clockwise rotation 1580-1) can transition valve body 1550 from the second state to the third state.

[0109] Referring to an environment of 1500°C, in a fourth state (e.g., balloon state), valve body 1550 can position the water inlet channel in fluid communication with the balloon channel via manifold channels 1552-3. Additionally or alternatively, outer surface 1551 can block flow through one or more of the water outlet channel and air inlet channel in the fourth state. In many embodiments, in the fourth state, a first portion (e.g., a first manifold port) of manifold channels 1552-3 can be aligned with the water inlet channel, and a second portion (e.g., a second manifold port) of the manifold channels can be aligned with the balloon channel. In various embodiments, a third rotation (e.g., clockwise rotation 1580-2) can transition valve body 1550 from the second state to the third state.

[0110] Figure 16 Various aspects of an exemplary valve body 1650 in an environment 1600 according to one or more embodiments described herein are shown. In many embodiments, cross-sections of one or more components may be shown in the environment 1600. In some embodiments, Figure 16 One or more components may be the same as or similar to one or more other components described herein. In environment 1600, the valve body may include an outer surface 1651, surface channels 1652-1, and O-rings 1666-1, 1666-2. In several embodiments described herein, one or more surface channels may be used to control flow through the valve body, such as in conjunction with manifold channels. In some embodiments, the valve body may include features such as grooves, slots, or orifices to receive / engage to a seal. In the illustrated embodiment, surface channel 1652-1 includes a circumferential surface channel, and surface channel 1652-2 includes a vertical surface channel. In other or alternative embodiments, one or more of diagonal channels, circumferential channels, vertical channels, helical channels, etc., may be used. In several embodiments, one or more seals may be used to restrict flow to one or more fluidly communicating channels. The embodiments are not limited to this context.

[0111] Figures 17A to 17D Various aspects of an exemplary suction valve assembly 1702 in environments 1700A, 1700B, 1700C, and 1700D according to one or more embodiments described herein are shown. In many embodiments, cross-sections of one or more components may be shown in environments 1700A, 1700B, 1700C, and 1700D. In some embodiments, Figures 17A to 17D One or more components may be identical or similar to one or more other components described herein. Environments 1700A, 1700B, 1700C, and 1700D may include a working channel valve 1720 having an atmospheric passage 1716, an outer surface 1751, passages 1752-1 and 1752-2, a working channel inlet port 1740, and an atmospheric inlet port 1780. Furthermore, the working channel valve 1720 may be oriented to have a top 1745 and a bottom 1755. In environment 1700A, the working channel valve 1720 is shown in conjunction with a suction valve well 1704. The suction valve well 1704 may include a balloon passage 1714, a working channel 1708 having a well radial orifice 1736, and a suction channel 1706. Furthermore, the suction valve well 1704 may be oriented to have a top 1745 and a bottom 1755. Environments 1700B, 1700C, and 1700D illustrate different perspective views of the working channel valve 1720. In one or more embodiments described herein, the working channel valve 1720 can control the flow through the suction valve well 1704 via one or more rotary movements. In additional or alternative embodiments, vertical movement may be used. The embodiments are not limited to this context.

[0112] In various embodiments, the working channel valve 1720 may be inserted into the working channel 1708. In one or more embodiments, channel 1752-1 may position the atmospheric inlet port 1780 in fluid communication with the atmospheric channel 1716, and channel 1752-2 may position the working channel inlet port 1740 in fluid communication with the working channel 1708. In many embodiments, the working channel valve 1720 utilizes rotation to transition between different states. In many such embodiments, the valve interface mechanism may translate user input into rotation to transition between different states. For example, a member with a helical boss may linearly translate with a member having a groove; the helical linear motion results in rotation. In many examples, the second member may not translate with the pressing of the first button (e.g., moving to the first stop), but the second member may translate with the pressing of the second button (e.g., moving to the second stop).

[0113] In some embodiments, the suction valve assembly 1702 can utilize three states. In a first state (e.g., atmospheric suction state), the working channel valve 1720 can position the atmospheric channel 1716 in fluid communication with the suction channel 1706 via channel 1752-1. Additionally or alternatively, the outer surface 1751 can block flow through the working channel 1708. In many embodiments, in the first state, the atmospheric inlet port 1780 can be aligned with the well radial orifice 1736.

[0114] In a second state (e.g., the working channel suction state), the working channel valve 1720 can position the suction channel 1706 in fluid communication with the working channel 1708 via channel 1752-2. Alternatively or additionally, the outer surface 1751 can block flow through channel 1752-1. In many embodiments, in the second state, the working channel inlet port 1740 can be aligned with the well radial bore 1736. In several embodiments, the working channel valve can be rotated to transition from the first state to the second state.

[0115] In the third state (e.g., the balloon channel suction state), the working channel valve 1720 can be moved downward to seal against the outer surface, thereby preventing fluid flow originating from the working channel. In some embodiments, the same movement may also move the cap (e.g., a slider) downward, thereby allowing the balloon to move axially downward. In various embodiments, the working channel valve 1720 can be moved downward to position the suction channel 1706 in fluid communication with the balloon channel 1714. Additionally or alternatively, the outer surface 1751 may block flow through channels 1752-1 and / or 1752-2. As previously described, in the third state, the outer surface 1751 may be aligned with the well radial orifice 1736. In several embodiments, the working channel valve may be rotated and / or translated to transition from the second state to the third state.

[0116] The medical device of the present invention is not limited to, but may include, various medical devices for accessing the body, including, for example, duodenoscopes, catheters, ureteroscopes, bronchoscopes, colonoscopes, arthroscopes, cystoscopes, hysteroscopes, EUS endoscopes, etc. In various embodiments, the valve assembly or components thereof described herein may include mounting points, mechanical couplings, bearings, seals, O-rings, actuators, valves, sheets, gaskets, housings, connectors, structural members, manifolds, ergonomic features (e.g., finger / thumb grooves, pads, handles, applications of mechanical advantages, etc.), springs, bellows, cantilever bias members, torsional bias members, linear bias members, baffle valves, skirts, fins, discs, channels, cavities, chambers, etc. (e.g., as a single unit or a group of units). In many embodiments, one or more components described herein may be constructed using various devices, techniques and / or processes, such as three-dimensional (3D) printing, multi-axis computer numerical control (CNC) machines, additive manufacturing, subtractive manufacturing, injection molding, computer-aided design (CAD) programs, path planning programs, machining, forging, casting and the like.

[0117] According to the present invention, all the apparatuses and / or methods disclosed and claimed herein can be manufactured and performed without requiring extensive experimentation. While the apparatuses and methods of the present invention have been described with reference to preferred embodiments, it will be apparent to those skilled in the art that variations can be made to the apparatuses and / or methods and to the steps or sequences of steps described herein without departing from the concept, spirit, and scope of the invention. All such similar substitutions and modifications that will be apparent to those skilled in the art are considered to be within the spirit, scope, and concept of the invention as defined by the appended claims.

Claims

1. A medical device comprising: A valve assembly including a main control valve, an air input valve, and an atmospheric valve, the main control valve including a valve body having an outer surface and one or more channels configured to control flow between a water input channel, a water output channel, and a balloon channel in a valve well; the air input valve configured to control flow through the air input channel of the valve well; and the atmospheric valve configured to control flow through the atmospheric channel. A valve interface mechanism operable between a first state, a second state, a third state, and a fourth state, wherein the first state includes the valve assembly configured to place the air input channel in fluid communication with the atmospheric channel; the second state includes the valve assembly configured to place the air input channel in fluid communication with the air output channel; the third state includes the valve assembly configured to place the water input channel in fluid communication with the water output channel; and the fourth state includes the valve assembly configured to place the water input channel in fluid communication with the balloon channel. The one or more channels include one or more manifold channels through the valve body, and the outer surface of the valve body includes a plurality of manifold ports, wherein the manifold ports are in fluid communication via the one or more manifold channels.

2. The medical device of claim 1, wherein the valve interface mechanism is configured in the first state to position the outer surface of the valve body to block flow through the balloon channel, the water inlet channel and the water outlet channel.

3. The medical device according to claim 1 or 2, wherein the valve interface mechanism is configured in the second state to position the outer surface of the valve body to block flow through the balloon channel, the water inlet channel and the water outlet channel.

4. The medical device according to claim 1 or 2, wherein the valve interface mechanism is configured in the third state to position a first portion of the one or more channels in fluid communication with the water input channel of the valve well, and to position a second portion of the one or more channels in fluid communication with the water output channel.

5. The medical device of claim 4, wherein the valve interface mechanism is configured in the third state to position the outer surface of the valve body to block flow through the balloon channel.

6. The medical device of claim 1 or 2, wherein the valve interface mechanism in the fourth state is configured to position a first portion of the one or more channels in fluid communication with the water input channel of the valve well, and to position a second portion of the one or more channels in fluid communication with the balloon channel.

7. The medical device of claim 6, wherein the valve interface mechanism is configured in the fourth state to position the outer surface of the valve body to block flow through the water output channel.

8. The medical device according to claim 1 or 2, wherein the valve interface mechanism is configured in the second state to position the outer surface of the valve body to block the flow of air through the air output channel of the valve body.

9. The medical device of claim 1 or 2, wherein the valve interface mechanism in the third state is configured to position a first portion of the one or more channels in fluid communication with the air input channel of the valve well, and to position a second portion of the one or more channels in fluid communication with the air output channel of the valve well.

10. The medical device according to claim 1 or 2, wherein the valve interface mechanism is configured in the fourth state to position the outer surface of the valve body to block the flow of air through the air output channel of the valve body.

11. The medical device according to claim 1 or 2, wherein the one or more channels are disposed on the outer surface of the valve body.

12. The medical device of claim 1 or 2, wherein the valve interface mechanism is configured to vertically shift the valve body to switch between one or more of the first state and the second state, the second state and the third state, and the third state and the fourth state.

13. The medical device of claim 1 or 2, wherein the valve interface mechanism is configured to rotate the valve body to switch between one or more of the first state and the second state, the second state and the third state, and the third state and the fourth state.

14. The medical device of claim 1 or 2, wherein the outer surface of the valve body includes one or more seals or one or more grooves configured to receive one or more seals.

15. The medical device of claim 1 or 2, wherein the plurality of manifold ports includes a first manifold port, a second manifold port, a third manifold port, and a fourth manifold port, the manifold ports being in fluid communication via the one or more manifold channels, wherein the first manifold port and the second manifold port are configured to place the water inlet channel in fluid communication with the water outlet channel, and the third manifold port and the fourth manifold port are configured to place the water inlet channel in fluid communication with the balloon channel.

Images