Suction collection device

Abstract

A suction collection device may be provided by a collection device comprising: a fluid collector having a first translucent wall defining an opening in a first plane; a cover configured to selectively interface with the fluid collector to seal the opening and define a fluid containment area, the cover defining a first through-hole substantially parallel to the first plane; and a solid filter having a second translucent wall defining a plurality of fluid outlets and configured to selectively interface with the first through-hole to dispose the plurality of fluid outlets within the fluid containment area.

Description

Technical Field

[0001] The present disclosure claims priority to U.S. Provisional Patent Application No. 63 / 322,487, filed on March 22, 2022, entitled “Suction Collection Device,” which is incorporated herein by reference in its entirety. Background Art

[0002] Suction devices are used as medical devices to remove body fluids (such as blood) from a patient. A vacuum pump supplies negative pressure (e.g., a relative vacuum) to draw the body fluid and any solids carried by or accompanying the body fluid into a collection device. A filter placed into the collection device in the flow path of the body fluid can be used to separate solids, such as thrombi, from the collected body fluid. Summary of the invention

[0003] The present disclosure generally relates to an improved suction collection device. The improvements described herein provide various benefits, including but not limited to: easier use of the collection device, easier analysis of liquids and solids collected by the collection device, more robust and more reliable sealing of the collection device, greater pressure differential tolerance for the collection device, and improved or simplified processing techniques as a result.

[0004] One embodiment of the present disclosure is a collection device, comprising: a fluid collector having a first translucent wall defining an opening in a first plane; a cover configured to selectively dock with the fluid collector to seal the opening and define a fluid containing area, the cover defining a first through hole substantially parallel to the first plane; and a solid filter having a second translucent wall defining a plurality of fluid outlets and configured to selectively dock with the first through hole to dispose the plurality of fluid outlets within the fluid containing area.

[0005] In some embodiments of the collection device, the collection device further comprises a cover configured to: secure a solid filter in the first through hole; and secure an intake tube to the solid filter. In some such embodiments, the cover further defines a second through hole substantially parallel to the first plane, and further comprises: a vacuum tube secured to the second through hole, configured to apply negative pressure in the fluid receiving area to draw fluid into the fluid receiving area through the intake tube. In some such embodiments, the collection device further comprises: a reflux filter disposed in the fluid receiving area and connected to the second through hole.

[0006] In some embodiments of the collection device, the collection device further comprises a pressure membrane disposed in the fluid containing region, configured to change color in response to the fluid containing region losing its contents after negative pressure is applied. In some such embodiments, the cover extends a first distance from the first plane, the pressure membrane is located at a second distance from the first plane, and the plurality of fluid outlets are located at least a third distance from the first face; wherein the first distance, the second distance, and the third distance are measured perpendicularly from the first plane; and wherein the first distance is less than the second distance, and the third distance is greater than the second distance.

[0007] In some embodiments of the collection device, the negative pressure is selected from the group consisting of: 1 to 5 pounds per square inch (PSI) below the current atmospheric pressure; 5 PSI below the current atmospheric pressure; 5-10 PSI below the current atmospheric pressure; 10 PSI below the current atmospheric pressure; 10-15 PSI below the current atmospheric pressure; and 15 PSI or less below the current atmospheric pressure.

[0008] In some embodiments of the collection device, the second translucent wall describes an open cylinder comprising a collection surface substantially parallel to the first plane, a guide surface substantially perpendicular to the first plane and connected to the collection surface on a first side, the guide surface defining an intake opening substantially parallel to the first surface on a second side opposite the first side. In some such embodiments, the plurality of fluid outlets are included in the collection surface with a flow path substantially perpendicular to the first plane, or the plurality of fluid outlets are included in the guide surface. In some such embodiments, the guide surface comprises: a first portion; and a second portion; wherein the first portion is located proximal to the collection surface and distal to the intake opening relative to the second portion, and comprises all of the plurality of fluid outlets included in the guide surface; and wherein the second portion is located distal to the collection surface and proximal to the intake opening relative to the first portion. In some such embodiments, the first portion comprises a first percentage of the guide surface, and the second portion comprises a second percentage of the guide surface greater than the first percentage. In some embodiments, the plurality of fluid outlets have flow paths substantially parallel to the first plane and are substantially parallel to each other, or the plurality of fluid outlets have flow paths substantially parallel to the first plane and are radially oriented relative to the guide surface.

[0009] In some embodiments of the collection device, the solid filter includes a first segment mated with a second segment, wherein each of the first segment and the second segment defines a half of an open cylinder. In some such embodiments, the cover defines a first through hole non-concentrically relative to a central axis of the fluid collector, and the cover is substantially perpendicular to a first plane that positions the solid filter closer to a portion of the first translucent wall, wherein the cover further includes a port alignment feature configured to engage with a lip defined around the intake opening to orient a mating line where the first segment contacts the second segment relative to the portion of the fluid collector.

[0010] In some embodiments of the collection device, the cover is secured to the fluid collector via a plurality of twist locks, wherein each twist lock is positioned at a given arc distance counterclockwise from a first adjacent twist lock and at a given arc distance clockwise from a second adjacent twist lock. In some such embodiments, each of the plurality of twist locks comprises: a lug defined on an outer periphery of the first translucent wall; a ramp defined in the cover configured to push the cover into closer contact with the fluid collector when the lug is captured on the ramp and the cover is rotated in a first direction relative to the fluid collector; and a catch defined in the cover configured to capture the lug after the lug is captured on the ramp and the cover is rotated a first amount in the first direction relative to the fluid collector and thereafter prevent further rotation of the cover relative to the fluid receiver in the first direction or in a second direction opposite to the first direction. In some such embodiments, the lug comprises a first magnet and the catch comprises a second magnet, wherein the first magnet and the second magnet are configured to magnetically attract each other when the lug is captured in the catch.

[0011] In some embodiments of the collection device, the collection device further comprises: a first compressible sealing gasket included in the cover and oriented concentrically with a central axis substantially perpendicular to the first plane to engage with a first mating surface of the fluid collector when the cover is selectively engaged with the fluid collector; and a second compressible sealing gasket included in the fluid collector and oriented concentrically with the central axis to engage with a second mating surface of the cover when the cover is selectively engaged with the fluid collector. In some such embodiments, the first compressible sealing gasket and the first mating surface are configured to engage with each other when the cover is secured to the fluid collector, wherein the second compressible sealing gasket and the second mating surface are configured not to engage with each other when the cover is secured to the fluid collector until a threshold negative pressure is supplied to the fluid containing area. In some such embodiments, the outer radius of the second compressible sealing gasket is smaller than the inner radius of the first compressible sealing gasket. In some such embodiments, the first mating surface is located proximal to the first plane relative to the second mating surface.

[0012] In some embodiments of the collection device, the cover is translucent.

[0013] In some embodiments of the collection device, the fluid collector includes graduations corresponding to known volumes of the fluid receiving area, the graduations being located at known heights relative to a base of the fluid collector opposite the opening.

[0014] One embodiment of the present disclosure is a filter comprising: a collecting surface having a periphery; a guide surface made of a translucent material, connected to the collecting surface around the periphery in a first plane and defining an intake opening in a second plane substantially parallel to the first plane; a plurality of fluid outlets defined by at least one of: the collecting surface; and a first portion of the guide surface located proximal to the first plane and distal to the second plane, wherein a second portion of the guide surface located proximal to the second plane and distal to the first plane is configured to guide the fluid to the first portion and the collecting surface.

[0015] In some embodiments of the filter, the filter includes a first section that cooperates with a second section, wherein the first section includes half of the collection surface and half of the guide surface. In some such embodiments, the first section defines a different number, orientation, or pattern of fluid outlets from the second section in a plurality of fluid outlets. In some such embodiments, the filter also includes a lip that defines the guide surface on an opposite side of the guide surface relative to the collection surface, the lip having a perimeter that is larger than the collection surface and defines a filter alignment feature that interfaces with the intake port of the cover to orient the filter relative to the cover.

[0016] One embodiment of the present disclosure is a collection device, which includes: a cover, which includes a plurality of female twist-lock engagement features; and a fluid collector, which includes a plurality of positive twist-lock engagement structures corresponding to the plurality of female twist-lock engagement features, wherein each group of paired positive twist-lock engagement features and female twist-lock engagement features includes: a lug defined on the outer periphery of the fluid collector; a ramp defined in the cover, which is configured to push the cover into closer contact with the fluid collector when the lug is captured on the ramp and the cover is rotated in a first direction relative to the fluid collector; and a capture member defined in the cover, which is configured to capture the lug after the lug is captured on the ramp and the cover is rotated a first amount in the first direction relative to the fluid collector and thereafter prevent the cover from further rotating relative to the fluid receiver in the first direction or in a second direction opposite to the first direction.

[0017] In some embodiments of the collection device, the lug is positioned at a given arc distance counterclockwise from a first adjacent lug and at a given arc distance clockwise from a second adjacent lug. In some such embodiments, the lug includes a first magnet and the capture member includes a second magnet, wherein the first magnet and the second magnet are configured to magnetically attract each other when the lug is captured in the capture member. In some such embodiments, the cover includes an intake port defining a first through hole, and the collection device further includes: a solid filter having a plurality of fluid outlets defined and configured to selectively dock with the intake port to set the plurality of fluid outlets through the first through hole and into a fluid containing area defined between the cover and the fluid collector; an intake tube; and a cover configured to secure the solid filter in the first through hole and secure the intake tube to the solid filter via a one-way valve. In some such embodiments, the fluid collector and the solid filter are translucent.

[0018] In some embodiments of the collection device, the collection device also includes: a first gasket included in the cover and oriented to engage with a first mating surface of the fluid collector when the cover is selectively engaged with the fluid collector; and a second gasket included in the fluid collector and oriented to engage with a second mating surface of the cover when the cover is selectively engaged with the fluid collector.

[0019] One embodiment of the present disclosure is a collection device, comprising: a cover including a first gasket and a first mating surface oriented concentrically with a central axis; and a fluid collector including a second gasket and a second mating surface oriented concentrically with the central axis, wherein, when the cover is selectively engaged with the fluid collector, the second gasket is positioned to engage with the first mating surface and the second mating surface is positioned to engage with the first gasket.

[0020] In some embodiments of the collection device, the first gasket and the first mating surface are configured to engage with each other when the cover is secured to the fluid collector, wherein the second gasket and the second mating surface are configured not to engage with each other when the cover is secured to the fluid collector until a threshold negative pressure is supplied to the fluid containing area.

[0021] In some embodiments of the collection device, the outer radius of the second compressible sealing gasket is smaller than the inner radius of the first compressible sealing gasket.

[0022] In some embodiments of the collection device, the cover includes an intake port defining a first through hole, the collection device further comprising: a solid filter defining a plurality of fluid outlets and configured to selectively interface with the intake port to dispose the plurality of fluid outlets through the first through hole and into a fluid receiving area defined between the cover and the fluid collector; an intake tube; and a cover configured to secure the solid filter in the first through hole and secure the intake tube to the solid filter via a one-way valve. In some such embodiments, the fluid collector and the solid filter are translucent.

[0023] One embodiment of the present disclosure is a collection device, comprising: a fluid collector having a base, a first translucent wall attached to the base, and an opening in a first plane; a cover having a first coupling interface, wherein, in the coupling configuration of the cover, the first coupling interface of the cover is coupled to the fluid collector to seal the opening to form a fluid containing area, wherein the cover has a first through hole; and a solid filter having a collection surface, a second translucent wall attached to the collection surface, and comprising a plurality of fluid outlets, wherein the solid filter further comprises a second coupling interface, wherein, in the coupling configuration of the solid filter, the second coupling interface of the solid filter is coupled to the first through hole so that the plurality of fluid outlets are within the fluid containing area.

[0024] In some embodiments of the collection device, the collection device further comprises: a cover having a third engagement interface, wherein, in the engagement configuration of the cover, the third engagement interface of the cover engages with the solid filter; and an intake tube attached to the cover, wherein the intake tube is in fluid communication with the cover and the solid filter. In some embodiments, the cover further comprises a second through hole, and further comprises: a vacuum tube fastened to the second through hole to apply a negative pressure in the fluid containing area, thereby drawing the fluid into the fluid containing area through the intake tube. In some embodiments, the collection device further comprises a reflux filter disposed in the fluid containing area and connected to the second through hole. In some embodiments, the collection device further comprises a pressure membrane disposed in the fluid containing area, wherein the pressure membrane has a first color at a first pressure within the fluid containing area, and wherein the pressure membrane has a second color different from the first color at a second pressure within the fluid containing area in response to a negative pressure applied by a negative pressure source in an operating mode. In some embodiments, the cover extends a first distance from a first plane, the pressure membrane is located at a second distance from the first plane, and the plurality of fluid outlets are located at at least a third distance from the first surface; wherein the first distance, the second distance, and the third distance are measured perpendicularly from the first plane; and wherein the first distance is less than the second distance, and the third distance is greater than the second distance.

[0025] In some embodiments of the collection device, the negative pressure is selected from the group consisting of: 1 to 5 pounds per square inch (PSI) below the current atmospheric pressure; 5 PSI below the current atmospheric pressure; 5-10 PSI below the current atmospheric pressure; 10 PSI below the current atmospheric pressure; 10-15 PSI below the current atmospheric pressure; and 15 PSI or less below the current atmospheric pressure.

[0026] In some embodiments of the collection device, the solid filter has an intake opening on an end of the second translucent wall opposite the collection surface, wherein the intake opening and the collection surface are substantially parallel to the first plane when the solid filter is engaged with the first through hole. In some embodiments, the plurality of fluid outlets are included in the collection surface, and their flow paths are substantially perpendicular to the first plane, or the plurality of fluid outlets are included in the second translucent wall. In some embodiments, the second translucent wall includes: a first portion; and a second portion; wherein the first portion is closer to the collection surface and farther from the intake opening relative to the second portion, and includes all of the plurality of fluid outlets included in the guide surface; and wherein the second portion is farther from the collection surface and closer to the intake opening relative to the first portion. In some embodiments, the first portion includes a first percentage of the second translucent wall, and the second portion includes a second percentage of the second translucent wall greater than the first percentage. In some embodiments, the plurality of fluid outlets have flow paths substantially parallel to the first plane and are substantially parallel to each other, or have flow paths substantially parallel to the first plane and are radially oriented relative to the second translucent wall. In some embodiments, the solid filter includes a first segment mated with a second segment, wherein each of the first segment and the second segment defines a half of the solid filter. In some embodiments, when the cover is engaged with the fluid collector to position the solid filter closer to a portion of the first translucent wall when the solid filter is also engaged with the cover, the first through hole is non-concentrically positioned relative to a central axis of the fluid collector, wherein the second engagement interface includes a lip defined around the intake opening to orient a mating line where the first segment contacts the second segment relative to the portion of the fluid collector.

[0027] In some embodiments, the first engagement interface includes a plurality of twist locks, wherein each twist lock is positioned at a given arc distance counterclockwise from a first adjacent twist lock and at a given arc distance clockwise from a second adjacent twist lock. In some embodiments, each of the plurality of twist locks includes: a lug included on an outer periphery of the first translucent wall; a ramp included in the cover that pushes the cover into closer contact with the fluid collector when the lug is captured on the ramp and the cover is rotated in a first direction relative to the fluid collector; and a catch included in the cover that captures the lug when the twist lock is in a first state after the lug is captured on the ramp and the cover is rotated a first amount in the first direction relative to the fluid collector, wherein the catch prevents further rotation of the cover in the first direction or a second direction opposite to the first direction relative to the fluid receiver when the torque is in the first state. In some embodiments, the lug includes a first magnet and the catch includes a second magnet, wherein the first magnet and the second magnet have polarities that are magnetically attracted to each other when the lug is captured in the catch.

[0028] In some embodiments, the collection device further comprises: a first compressible sealing gasket included in the cover and oriented concentrically with a central axis substantially perpendicular to the first plane to engage with a first mating surface of the fluid collector when the cover is selectively engaged with the fluid collector; and a second compressible sealing gasket included in the fluid collector and oriented concentrically with the central axis to engage with a second mating surface of the cover when the cover is selectively engaged with the fluid collector. In some embodiments, the first compressible sealing gasket and the first mating surface engage with each other when the cover is secured to the fluid collector, wherein the second compressible sealing gasket and the second mating surface do not engage with each other when the cover is secured to the fluid collector until a threshold negative pressure is supplied to the fluid containing area. In some embodiments, the outer radius of the second compressible sealing gasket is equal to or less than the inner radius of the first compressible sealing gasket. In some embodiments, the first mating surface is positioned closer to the first plane relative to the second mating surface.

[0029] One embodiment of the present disclosure is a collecting device, comprising: a pressure containing device having a fluid containing area, wherein at least a portion of the pressure containing device is translucent; a solid filtering device disposed in the fluid containing area, wherein the solid filtering device is translucent; a first fluid connecting device connected to the pressure containing device and separated from the fluid containing area via the solid filtering device; and a second fluid connecting device connected to the pressure containing device and a negative pressure source to apply negative pressure in the fluid containing area, thereby drawing fluid into the fluid containing area through the first fluid connecting device and the solid filtering device.

[0030] In some embodiments, the collection device further comprises: an aerosol filter device disposed within the fluid containment region and connected to the second fluid communication device to reduce fluid ingestion from the fluid containment region into the second fluid communication device when negative pressure is applied. In some embodiments, the solid filter device is retained in the fluid containment region via an engagement feature that interfaces with a first through hole in a cover of the pressure containment device, wherein the first through hole is non-concentrically positioned relative to a central axis of the pressure containment device to position the solid filter device eccentrically relative to the central axis. In some embodiments, the pressure containment device comprises a fluid collector having a first sealing device and a second sealing device and a cover.

[0031] In some embodiments, the cover includes a plurality of first engagement means, and the fluid collector includes a plurality of second engagement means, and when the cover is in contact with the fluid collector, each of the plurality of second engagement means engages with a corresponding first engagement means of the plurality of first engagement means via a downward force applied to the cover when in contact with the fluid collector and a rotational force in a first direction to seal the pressure containment device via the first sealing means. In some embodiments, the second sealing means does not engage until negative pressure is applied to the pressure containment device via a negative pressure source.

[0032] In some embodiments, each of the plurality of first engagement devices comprises a magnet; and wherein, when the pressure-containing device is sealed, a capture member included in each second engagement device captures the corresponding first engagement device, the capture member comprising ferromagnetic inclusions to magnetically interface with the magnet of the corresponding first engagement device. In some embodiments, each of the plurality of second engagement devices comprises a magnet in the capture member, when the pressure-containing device is sealed, the capture member captures the corresponding first engagement device; and wherein, each of the plurality of first engagement devices comprises ferromagnetic inclusions to magnetically interface with the magnet of the corresponding second engagement device when the pressure-containing device is sealed. In some embodiments, wherein, each of the plurality of first engagement devices comprises a first magnet of a first polarity; and each of the plurality of second engagement devices comprises a second magnet of a second polarity in the capture member, when the pressure-containing device is sealed, the capture member captures the corresponding first engagement device to magnetically interface with the first magnet of the corresponding first engagement device.

[0033] In some embodiments, the collection device further comprises a pressure indicating device disposed within the fluid receiving area and visible from outside the fluid receiving area.

[0034] One embodiment of the present disclosure is a method, which includes: connecting a cover to a fluid collector to form an airtightly sealed fluid containing area between the cover and the fluid collector; fastening a solid filter to the fluid containing area through the cover; establishing fluid communication between a negative pressure source and the fluid containing area and between the fluid containing area and a filtration target; applying negative pressure via the fluid communication to draw fluid from the filtration target into the fluid containing area through the solid filter; and separating the negative pressure from the fluid communication in response to reaching a collection standard.

[0035] In some embodiments, the collection criterion is met in response to detecting the presence of solids in the solids filter, wherein the collection criterion is determined to have been met via visual inspection through a translucent wall of the fluid collector and a translucent wall of the solids filter. In some embodiments, the collection criterion is met in response to a change in color of a pressure membrane disposed in the fluid receiving area, wherein the collection criterion is determined to have been met via visual inspection through a translucent wall of the fluid collector.

[0036] In some embodiments, attaching the cover includes: rotating the cover relative to the fluid collector while applying a downward force to engage a plurality of protrusions included on the fluid collector with a corresponding plurality of receivers included on the cover, wherein an airtight seal is formed by a first gasket included in the cover, the first gasket being docked with a first mating surface of the fluid collector; applying negative pressure also includes: supplementing the airtight seal by drawing the cover onto the fluid collector via negative pressure to engage a second gasket included in the fluid collector that is docked with a second mating surface of the cover.

[0037] In some embodiments, the method further includes, before fastening the solid filter to the fluid containing area by the cover: assembling the solid filter from a first section and a second section, wherein the first section is selected based on a first number, a first position, and a first aperture of a first plurality of fluid outlets included in the first section, and the second section is selected based on a second number, a second position, and a second aperture of a second plurality of fluid outlets included in the second section. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings depict various elements of one or more embodiments of the disclosure and are not to be considered limiting of the scope of the disclosure.

[0039] In the drawings, some elements may not be shown to scale with other elements in order to more clearly show details. In addition, where possible, the same reference numerals are used in several drawings to represent the same elements.

[0040] It is contemplated that elements and features of one embodiment may be advantageously incorporated into other embodiments without further recitation or illustration. For example, because the accompanying drawings may show alternative views and time periods, various elements shown in a first figure may be omitted from the illustration shown in a second figure without denying that these elements are included in the embodiment shown or discussed with respect to the second figure.

[0041] Figure 1 An isometric view showing an assembled collection device according to an embodiment of the present disclosure.

[0042] Figure 2 An exploded isometric view of a collection device according to an embodiment of the present disclosure is shown.

[0043] Figure 3 An exploded isometric view of a solid filter is shown according to an embodiment of the present disclosure.

[0044] Figure 4A-4D An isometric view of a section of a solids filter according to an embodiment of the present disclosure is shown and illustrates a fluid outlet defined therein.

[0045] Figure 5A-5D Diagram showing fluid flow through a solids filter according to an embodiment of the present disclosure.

[0046] Fig. 6A and Figure 6B An isometric view showing a cover interfaced with a solids filter according to an embodiment of the present disclosure.

[0047] Figure 7 An exploded isometric view of components showing a gasket for inclusion in a collection device according to an embodiment of the present disclosure.

[0048] Figure 8 An isometric view showing securing a cover to a fluid collector according to an embodiment of the present disclosure.

[0049] Fig. 9 A time lapse of a twist-lock engagement between a cover and a fluid collector is shown in accordance with an embodiment of the present disclosure.

[0050] Fig. 10A and Fig. 10B A time lapse of a gasket sealing a collection device is shown according to an embodiment of the present disclosure.

[0051] Fig.11A and Fig. 11B A cross-sectional view of a collection device including a pressure membrane within a fluid containing region is shown according to an embodiment of the present disclosure.

[0052] Fig.12 is a flow chart of a method for assembling and using a collection device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] The present disclosure generally relates to an improved suction collection device. The improvements described herein provide various benefits, including but not limited to: easier use of the collection device, easier analysis of liquids and solids collected by the collection device, more robust and more reliable sealing of the collection device, greater pressure differential tolerance for the collection device, and improved or simplified processing techniques as a result.

[0054] The collection device may include various components made of translucent rigid material, which allows a user to view various solids collected by the solids filter during operation, presents a clear view of fluid flow through the solids filter, allows various elements to appear in known and consistent positions within the collection device, and facilitates inspection of the collection device for proper assembly, material integrity, and unexpected changes in pressure.

[0055] The collection device may also include a dual gasket seal design that works in conjunction with an improved twist-lock securing mechanism to reduce the force required to manually seal the collection device while ensuring that the collection device remains sealed with greater force to maintain the seal at greater pressure differentials and for longer periods of time when active suction is removed or paused.

[0056] Figure 1 1 shows an isometric view of a collection device 100 according to an embodiment of the present disclosure when assembled. The collection device 100 includes a fluid collector 110 shielded by a cover 120, and a solid filter 130 is secured by a cover 160 (eg, Figure 3 , Figure 5C-5D and Figure 6A-6B ), and a return filter 170 and various tubes 190a-190b are attached to the cover 120 to draw fluid to a collection device via an applied vacuum.

[0057] The fluid collector 110 includes a wall 112 that is joined to a base 116 on a first side and defines an opening 114 (eg, Figure 2 As shown in FIG. 1 , the cover 120 seals the opening 114 when coupled to the fluid collector 110. Figure 1110 is shown in a substantially cylindrical form factor, but in various embodiments, the fluid collector 110 may take other shapes, including, but not limited to, cones, pyramids, other shapes, and combinations thereof (e.g., similar to a conical flask), and combinations thereof. In some such embodiments, the wall 112 may surround or otherwise reduce or omit the base 116. In some such embodiments, if the base 116 is omitted, the fluid collector 110 may be held upright by a support structure (e.g., supported by an annular stand, with the conical wall 112 lowered into the annular shape until the wall 112 contacts the annular support structure to hold the fluid collector 110 in place). In various embodiments, the fluid collector 110 is made of a translucent material, such as, but not limited to, plastic or glass.

[0058] As used herein, the term "translucent" is intended to include the term "transparent" such that both describe a material that allows light (in at least one band of visible or near-visible wavelengths) to substantially pass through the material, whether or not scattered due to internal or external interfaces. Accordingly, when an element is described herein as translucent, a person (such as a physician, operator, or user) is able to see through the associated material. In various embodiments, a translucent material allows X to 100 percent of light to pass through the material (the remainder being absorbed or reflected), where X can be any number, such as between 50 and 99, that allows a person to see through the translucent material. In various embodiments, the wavelength of light for which a material is judged to be translucent can include light between about at least one of the following bands: 310-1100 nanometers (nm), 380-750 nm, 700-600 nm, 600-580 nm, 580-550 nm, 550-475 nm, 475-450 nm, 450-400 nm, and combinations thereof.

[0059] The cover 120 is configured to selectively interface with the fluid collector 110 and seal the opening 114 to define a fluid receiving area 180 to collect various fluids therein. To introduce fluid into the fluid receiving area 180, the cover 120 includes an intake port 122 that defines a first through hole 124 through the cover 120 that is substantially parallel to the plane defining the opening 114. To apply suction (via a vacuum or other negative pressure) to the fluid receiving area 180 and extract the fluid through the first through hole 124, the cover 120 includes a suction port 126 that defines a second through hole 128 through the cover 120 that may also be substantially parallel to the plane defining the opening 114. In various embodiments, the cover 120 is made of a translucent plastic or glass, which may be the same material or a different material as the fluid collector 110, but may also be made of an opaque material in other embodiments.

[0060] The intake port 122 is configured to hold the solid filter 130 in place and into the fluid containment area 180 through the first through hole 124. The cover 160 is configured to engage with the intake port 122 to hold the solid filter 130 in place and to hold the intake tube 190a in place to connect a fluid source (e.g., a vascular access device, an extraction catheter, a stent, a microcatheter, a port, or other patient interface device) to the collection device 100. In various embodiments, the cover 160 is held in place on the solid filter 130 via a pressure seal, but may also be held in place via an adhesive, a twist-lock mechanism, a combination thereof, and other attachment mechanisms. In various embodiments, the intake port 122 includes a one-way valve or an adjustable valve to allow an external pump or vacuum source (not shown) to apply suction to the fluid containment area 180, and to seal and maintain pressure in the fluid containment area 180 when suction is no longer applied.

[0061] The suction port 126 is configured to hold the vacuum tube 190b in place to connect an external pump or vacuum source (not shown) to the collection device 100. In various embodiments, the suction port 126 includes a one-way valve to allow an external pump or vacuum source (not shown) to apply suction to the fluid-receiving area 180 when active and connected via the vacuum tube 190b, and to seal the second through-hole 128 when suction is no longer applied. In addition, a backflow filter 170 can be connected to the second through-hole 128 within the fluid-receiving area 180 to reduce the amount or likelihood of drawing fluid (and any contaminants therein) into the vacuum tube 190b. In various embodiments, the backflow filter 170 is made of foam or other porous material that is configured to allow air to move out of the fluid-receiving area 180 via the vacuum tube 190b, but prevent body fluids or aerosolized contaminants (e.g., bacteria, viruses) from entering the vacuum tube 190b.

[0062] During operation of the collection device 100, the filtration target (e.g., a blood vessel) is placed in fluid communication with a vacuum source via the intake tube 190a and the vacuum tube 190b, so that the negative pressure exerted on the fluid draws the fluid and any solids carried therein through the solid filter 130 into the fluid receiving area 180. The solid filter 130 (at Figure 3-5D 190a and the solid filter 130 are configured to selectively interface with the intake port 122 and to be inserted into the fluid receiving area 180 at a predetermined depth through the first through hole 124. The solid filter 130 includes a plurality of fluid outlets located at a distal end relative to where the solid filter 130 interfaces with the intake port 122. In various embodiments, the solid filter 130 can be unloaded or separated from the intake port 122 (after removing the cover 160) to allow any solids captured in the fluid flowing into the fluid receiving area 180 via the intake tube 190a and the solid filter 130 to be removed or more closely analyzed.

[0063] In various embodiments, the solid filter 130 is made of translucent plastic or glass, which can be the same or different material as the material used to construct the fluid collector 110. Therefore, when the solid filter 130 is installed in the fluid holding area 180 and when the collection device 100 is actively receiving fluid, the user can visually detect whether any solids are collected by the solid filter 130. The ability to visually detect solids improves the usability and functionality of the collection device 100 because it allows the user (e.g., a physician, an operator) to visually inspect the solid filter 130 for any collected contents without releasing the vacuum or removing the cover 120, thereby maintaining negative pressure within the fluid holding area 180, maintaining a sterile environment, and reducing procedure time. Unlike opaque filters or filters with reduced visibility that require the user to pause the procedure to manually inspect the solid contents in the filter, the translucent or transparent solid filter 130 can allow the user to visually assess the contents during the procedure without releasing the vacuum or disassembling the collection device 100. Furthermore, by constructing the solid filter 130 from a rigid material rather than a fabric or mesh, any solids collected by the solid filter 130 will be maintained at a consistent height within the solid filter 130 and will not distort the shape of the solid filter 130 during continued use. Example features of the solid filter 130 are described in Figure 3 - discussed in more detail in Figure 6.

[0064] In order to ensure that the fluid collector 110 and the cover 120 are tightly sealed and remain sealed after being formed, the first gasket 140 and the second gasket 150 are located between the fluid collector 110 and the cover 120. Each of the first gasket 140 and the second gasket 150 is made of a compressible material, such as rubber or rubber plastic, to deform when pressure is applied to the first gasket 140 and the second gasket 140 and ensure close contact between the two surfaces. Additional gaskets (not shown) can also be used to provide additional sealing performance. Multiple gaskets (such as the first gasket 140 and the second gasket 150) allow the collection device 100 to maintain a vacuum seal for a longer time under higher pressure differentials and in challenging environments, and can reduce the possibility that the user spends time eliminating problems such as air leaks or pressure inconsistencies during the procedure. In various embodiments, pressure can be maintained on the first gasket 140 and the second gasket 150 via various locking or connecting mechanisms included in the fluid collector 110 and the cover 120. Figure 7-10B Example features of how the fluid collector 110 and the cover 120 interface with each other and how the first gasket 140 and the second gasket 150 maintain a seal are discussed in greater detail.

[0065] Figure 2An isometric exploded view of a collection device 100 according to an embodiment of the present disclosure is shown. The various elements of the collection device 100 are assembled relative to a central axis 210 and an opening plane 220 defined by an opening 114 in the fluid collector 110, and the cover 120 seals the opening 114. The cross-sectional areas of the fluid collector 110 and the cover 120 are substantially circular (at least in the area used to mate the two components with each other), so that the cover 120 can be rotated relative to the fluid collector 110 about the central axis 210 to engage various fixing features to seal the opening 114, such as about Figure 7-10B The twist-lock mechanism and paired gasket / mating surfaces are discussed in more detail.

[0066] Although the collection device 100 can be held in various orientations, for ease of understanding, the present disclosure uses relative position terms (e.g., upward, above, downward, below, higher, lower, top, bottom) in a direction oriented along the central axis 210 (e.g., Z direction) with the base 116 of the fluid collector 110 as a reference point, wherein elements closer to the base 116 are considered "below" elements farther from the base 116, and elements farther from the base 116 are considered "above" elements closer to the base 116. Similarly, unless otherwise specified, rotation of one element of the collection device 100 relative to another element of the collection device 100 should be understood as rotation substantially about the central axis 210. In addition, unless otherwise specified, relative terms such as "inner" and "outer" should be understood as relative to the central axis 210, wherein elements closer to the central axis 210 are considered "inner" elements relative to elements farther away from the central axis 210, and elements farther away from the central axis 210 are considered "outer" elements relative to elements closer to the central axis 210.

[0067] In various embodiments, the substantially circular cross-sectional area can be narrowed relative to the opening plane 220 such that one or more of the fluid collector 110 and the cover 120 narrows or expands as the distance from the opening plane 220 increases to have different cross-sectional areas at the height of the respective components.

[0068] While the various fastening features are generally arranged concentrically or radially symmetrically with respect to the central axis 210, the various elements may be offset or otherwise disposed off-axis relative to the central axis 210. For example, an intake port 122 defined in the cover 120 may be defined on an intake axis 230 substantially parallel to the central axis 210 at a first distance from the central axis 210, the intake port 122 defining an intake through-hole 124 through which the solid filter 130 is disposed into the fluid receiving area 180. Similarly, a suction port 126 defined in the cover 120 may be defined on a substantially parallel suction axis 240 at a second distance from the central axis 210, the suction port 126 defining a suction through-hole 128 through which suction or negative pressure is applied to the fluid receiving area 180.

[0069] In various embodiments, the first distance and the second distance (from the central axis 210) are equal, such that the intake axis 230 and the suction axis 240 are defined at a common radius from the central axis 210. In other embodiments, the first distance and the second distance are not equal, which can improve the stability of the assembled collection device 100 to account for the greater weight of the hood 160 and solids filter 130 compared to the return filter 170 and the different forces exerted by the fluid entering through the intake port 122 and the air exhausted by the suction port 126.

[0070] In various embodiments, by positioning the intake port 122 off-axis relative to the central axis 210 , the solids filter 130 is disposed closer to a section of the wall 112 of the fluid collector 110 , thereby improving visibility of the solids filter 130 (and any solids captured therein) when viewed from that section of the wall 112 compared to when the solids filter 130 is aligned concentrically with the central axis 210 .

[0071] Figure 3An isometric exploded view of a solid filter 130 according to an embodiment of the present disclosure is shown. In various embodiments, the solid filter 130 is made of two sections 310a-310b (collectively or collectively referred to as sections 310), which are mated together via a plurality of locking lugs 320a-320d (collectively or collectively referred to as locking lugs 320) corresponding to a plurality of locking grooves 325a-325d (collectively or collectively referred to as locking grooves 325) and a plurality of alignment lugs 330a-330d (collectively or collectively referred to as alignment lugs 330) corresponding to a plurality of alignment grooves 335a-335d (collectively or collectively referred to as alignment grooves 335, 325). In various embodiments, the mating surface between the two sections 310a-310b can be further strengthened by adhesives, resins, etc. to supplement the locking lugs / grooves 320 / 325 and the alignment lugs / grooves 330 / 335 and provide a tighter seal between the two sections 310a-310b. Although the two segments 310b are shown as being identical, in various embodiments, an operator or designer may select a segment 310 having a different layout of fluid outlets 360 (e.g., such as with respect to Figure 4A-4D those discussed above) to affect fluid flow when the collection device 100 is in operation.

[0072] In various embodiments, it is advantageous for both sections 310a-310b to be identical, which eases manufacturing, reduces tooling, and minimizes the number of unique parts to simplify assembly and ease replacement of any lost, missing, or incorrectly sized parts.

[0073] In various embodiments, the locking lug 320 includes a distal end having an oversized chamfered tip configured to draw the two segments 310 into contact with each other by engaging a portion of the other segment 310 defining a corresponding locking slot 325 to define a cantilevered snap-fit ​​joint.

[0074] In various embodiments, the alignment lugs 330 include protrusions configured to fit within depressions defined by the alignment slots 335 in the material of the other segment 310 to engage the two segments 310 via pressure and friction or to help prevent misalignment of the segments 310 by twisting.

[0075] Each segment 310 defines half of a guide surface 340 of the solid filter 130 and half of a collection surface 350 of the solid filter 130. In various embodiments, one or both of the guide surface 340 and the collection surface 350 include a plurality of fluid outlets 360, which will be related to Figure 4A-4D for a more detailed discussion.

[0076] In embodiments where a fluid outlet 360 is defined through the guide surface 340, the guide surface 340 may be understood to have two portions 370a-370b based on where the fluid outlet 360 is defined. When viewed from the side of the guide surface 340 connected to the collection surface 350, a first portion 370a of the guide surface 340 includes the fluid outlet 360, and a second portion 370b is defined at a height where no other fluid outlets 360 are defined. In other words, the first portion 370a is defined closer to the collection surface 350 and farther from the intake opening 390 (relative to the second portion 370b), and includes a plurality of fluid outlets 360 defined in the guide surface 340 and any area of ​​the guide surface 340 that is proximal to the collection surface 350 relative to the fluid outlets 360 defined in the guide surface 340. Similarly, the second portion 370b (having the fluid outlet 360) is defined farther from the collection surface 350 and closer to the intake opening 390 (relative to the first portion 370a), and includes any area of ​​the guide surface 340 that is located proximal to the intake opening 390 relative to the fluid outlet 360 defined in the guide surface 340. In another embodiment, multiple fluid outlets 360 can be provided along the entire length of the guide surface 340, effectively minimizing or eliminating the second portion 370b. In another embodiment (such as Figure 4C As shown), the plurality of fluid outlets 360 may be provided only in the collection surface 350, effectively eliminating the first portion 370a.

[0077] In various embodiments, the number, orientation, and size of the fluid outlets 360 can vary based on the intended flow rate of the fluid through the solid filter 130, the expected viscosity of the fluid, the desired size of the particles or solids to be collected, and combinations thereof. Similarly, the percentage of the guide surface 340 defined as the first portion 370a or the second portion 370b can vary in different embodiments. By specifying where the first portion begins (or where the second portion ends) relative to the intake opening 390, the designer can control where the fluid enters the fluid containing area 180 and where any collected solids remain. In addition, by using a rigid (and translucent) material to shrink the solid filter 130, the designer ensures that any collected solids are visible at a consistent location in the solid filter 130, which is different from a fabric or mesh filter, which may deform when in use or when solids are present.

[0078] As shown, the locking lug 320 and the locking slot 325 are defined only in the second portion 370b, while the alignment lug 330 and the alignment slot 335 are defined in both the first portion 370a and the second portion 270b. However, in various embodiments, the designer may incorporate the locking lug 320 and the locking slot 325 in the first portion 370a.

[0079] During operation of the collection device 100, the fluid (and any solids it carries) enters the solids filter 130 through the intake opening 390 defined at the opposite end of the guide surface 340 relative to the collection surface 350. As shown, the translucent walls of the two mating segments 310 (e.g., the guide surfaces 340) describe an open cylinder, wherein the intake opening 390 defines a plane defined by the lip 380 that is substantially parallel to the collection surface 350. As described with respect to Fig. 6A and Figure 6B Described in greater detail, the lip 380 is a larger perimeter than the guide surface 340 or the collection surface 350 and may include various alignment features configured to engage with the cover 120 to orient the solids filter 130 .

[0080] Although the cross-sectional area of ​​the solid filter 130 is shown as being generally circular, the solid filter 130 may be oval or other shapes, which may use the relative shapes of the solid filter 130 and the intake port 122 to act as an alignment feature. Furthermore, although shown as a generally circular area in various embodiments, the collection surface 350 may be hemispherical, conical, or other shapes. Additionally or alternatively, when a conical solid filter 130 is defined, the guide surface 340 may surround or otherwise reduce or omit the collection surface 350.

[0081] Figure 4A-4D An isometric view of a section 310 of the solids filter 130 is shown to detail the fluid outlet 360 defined therein, in accordance with an embodiment of the present disclosure. Figure 4A It is shown that fluid outlets 360 may be defined in both guide surface 340 and collection surface 350 , allowing solids filter 130 to output fluid from the sides and bottom thereof during operation. Figure 4B It is shown that the fluid outlet 360 may be defined only in the guide surface 340 , allowing the solids filter 130 to output fluid from the side thereof during operation. Figure 4C It is shown that the fluid outlet 360 may be defined only in the collection surface 350, allowing the solids filter 130 to output fluid from its bottom during operation (allowing all of its guide surface 340 to be considered as the second portion 370b). Figure 4D It is shown that the fluid outlet 360 can be omitted in a section 310 that is intended to cooperate with another section 310 that does not include the fluid outlet 360, thereby directing the fluid to flow out through half of the solid filter 130, and the operator can have a better view within the solid filter 130 (for example, without being hindered by the refractive index difference caused by the fluid outlet 360), or can remove the solid filter 130 in a certain orientation to avoid or reduce leakage of any fluid still within the solid filter 130.

[0082] Figure 5A-5DA diagram of fluid flow through a solid filter 130 according to an embodiment of the present disclosure is shown. As shown, when the solid filter 130 is installed in an operating collection device 100, the fluid 530 enters the solid filter 130 via the intake opening 390 and exits (into the fluid containment area 180) via the fluid outlet 360. Depending on the number, presence, and orientation of the fluid outlets 360, and the flow rate of the fluid 530 entering the solid filter 130, the fluid 530 can be directed in various directions to enhance the ability of an observer to observe the various solids 540 captured in the solid filter 130.

[0083] like Figure 5A and Figure 5B As shown in the cross-sectional view in FIG, the non-concentric placement of the solid filter 130 (relative to the central axis 210) places the solid filter 130 closer to a portion of the wall 112 of the fluid collector 110, which portion can be designated as the viewing wall 510a, and farther away from other portions of the wall 112, which can be designated as the distal wall 510b.

[0084] Despite Figure 5A and Figure 5B A portion of the observation wall 510a is shown in the cross-sectional view shown, but the observation wall 510b can include various portions of the wall 112 that are located within a specified proximity of the solid filter 130. When one or more of the fluid collector 110 and the solid filter 130 are described as being generally circular, conical, truncated conical, or other cylinders having one or more radii, the observation wall 510a can be defined as the inner point (or line) on the interior of the wall 112 that is closest to the exterior of the solid filter 130, and the area of ​​the wall 112 within a given arc distance of the closest point (or line). For example, the observation wall 510a can include a segment of the wall 112 that defines an arc of 30 degrees, 60 degrees, 90 degrees, 120 degrees, or other specified angles centered on the point (or line) of the wall 112 that is closest to the solid filter 130. Additionally or alternatively, the observation wall 510a can describe those portions of the wall 112 that are located within a threshold distance (e.g., within X centimeters (cm)) of any portion of the solid filter 130.

[0085] Despite Figure 5A and Figure 5B The illustrated cross-sectional view shows a portion of the distal wall 510b opposite the illustrated portion of the viewing wall 510a, but any portion of the wall 112 not designated as the viewing wall 510a may be described as the distal wall 510b.

[0086] Figure 5AA cross-sectional side view (e.g., in the ZX plane) is shown in which the solid filter 130 disposed in the fluid receiving area 180 of the collection device 100 is oriented to direct the fluid 530 away from the viewing wall 510a (e.g., into or out of the paper in the Y direction) through those fluid outlets 360 defined in the guide surface 430. Figure 3 ), the mating line 520 between the two segments 310a-310b can be oriented toward the nearest point (or line) between the wall 112 and the solid filter 130 to guide the fluid 530 substantially vertically through the fluid outlet 360 defined in the guide surface 340 of the viewing plane.

[0087] because Figure 5A In the orientation shown, the first segment 310a is visible and the second segment 310b (not shown) is obscured by the first segment 310a; however, both the first segment 310a and the second segment 310 can be visible from the viewing plane through the viewing wall 510a. Therefore, the mating line 520 between the first segment 310a and the second segment 310b is visible to the observer.

[0088] In various embodiments, an operator may use the same segment 310 having a fluid outlet 360 defined in the guide surface 340 (see, e.g., Figure 4A ), directing the fluid 530 substantially uniformly relative to the viewing plane (e.g., into and out of the paper). In other embodiments, the operator may preferentially direct the fluid 530 in one direction relative to the viewing plane (e.g., more into or more out of the paper) by using segments 310 having different numbers, locations, and apertures of fluid outlets 360 from one another. For example, the operator may use a segment 310 that includes a fluid outlet 360 in the guide surface 340 (e.g., see Figure 4A-4B ) and a section of the guide surface 340 that does not include the fluid outlet 360 (see, for example Figure 4C-4D ) to direct fluid 530 in one direction but not another (e.g., only into or only out of the paper).

[0089] although Figure 5AThe fluid 530 is shown exiting the solid filter 130 through the guide surface 340 and the collection surface 350, but in various embodiments, the operator may select the segment 310 of the solid filter 130 to include or not include the fluid outlet 360 in the corresponding guide surface 340 or collection surface 350. Thus, the fluid 530 may flow through both the guide surface 340 and the collection surface 350, through only the guide surface 340 (e.g., when the fluid outlet 360 in the collection surface 350 is omitted), or through only the collection surface 350 (e.g., when the fluid outlet 360 in the guide surface 340 is omitted). Additionally or alternatively, depending on the flow rate of the fluid 530 flowing into and out of the solid filter 130, and the relative height (e.g., proximity to the collection surface 350) of the first fluid outlet 360 defined in the guide surface 340, the solid filter 130 may initially output the fluid 530 through the collection surface 350 until the level of the fluid 530 in the solid filter 130 reaches the first fluid outlet 360 defined in the guide surface 340.

[0090] Figure 5B 1 shows where the solid filter 130 disposed in the fluid receiving area 180 of the collection device 100 is oriented to direct the fluid 530 through those fluid outlets 360 defined in the guide surface 340 toward the illustrated portion of the viewing wall 510a (e.g., in the X direction) and the distal wall 510b. Figure 3 ), the mating line between the two segments 310a-310b can be directed away from the nearest point (or line) between the wall 112 and the solid filter 130 to guide the fluid 530 substantially vertically through the fluid outlet 360 defined in the guide surface 340 toward the illustrated portion of the viewing wall 510a and the distal wall 510b.

[0091] because Figure 5B In the orientation shown, the first segment 310a is visible from the viewing wall 510a, but the second segment 310b may be obscured by the first segment 310a. Accordingly, the mating line 520 between the first segment 310a and the second segment 310b is not visible from the viewing wall 510a. Figure 5B Visible in the image, but may be obscured from the observer.

[0092] In various embodiments, an operator may use the same segment 310 having a fluid outlet 360 defined in the guide surface 340 (see, e.g., Figure 4A), directing the fluid 530 substantially uniformly relative to the viewing plane (e.g., toward and away from the viewing wall 510a). In other embodiments, an operator may preferentially direct the fluid 530 in one direction toward or away from the viewing plane by using segments 310 having different numbers, locations, and apertures of fluid outlets 360 from one another. For example, an operator may use a segment 310 that includes a fluid outlet 360 in the guide surface 340 (e.g., see Figure 4A-4B ) and a section of the guide surface 340 that does not include the fluid outlet 360 (see, for example Figure 4C-4D ) to direct fluid 530 in one direction but not another (e.g., only toward or away from viewing wall 510a).

[0093] although Figure 5B The fluid 530 is shown exiting the solid filter 130 through the guide surface 340 and the collection surface 350, but in various embodiments, the operator may select the segment 310 of the solid filter 130 to include or not include the fluid outlet 360 in the corresponding guide surface 340 or collection surface 350. Thus, the fluid 530 may flow through both the guide surface 340 and the collection surface 350, through only the guide surface 340 (e.g., when the fluid outlet 360 in the collection surface 350 is omitted), or through only the collection surface 350 (e.g., when the fluid outlet 360 in the guide surface 340 is omitted). Additionally or alternatively, depending on the flow rate of the fluid 530 flowing into and out of the solid filter 130, and the relative height (e.g., proximity to the collection surface 350) of the first fluid outlet 360 defined in the guide surface 340, the solid filter 130 may initially output the fluid 530 through the collection surface 350 until the level of the fluid 530 in the solid filter 130 reaches the first fluid outlet 360 defined in the guide surface 340.

[0094] Figure 5C A first orientation of the fluid outlets 360 in the guide surfaces 340 that are substantially parallel to one another is shown in an XY plane that is substantially parallel to the intake opening 390 and the collection surface 350 . Figure 5DA second orientation of the fluid outlets 360 in the guide surface 340 is shown that is radially oriented relative to the guide surface 340. In various embodiments, the guide surface 340 can include parallel, radial, or radial and parallel (at different heights in the Z direction) orientations for the flow path of the fluid 530 through the fluid outlets 360. The various fluid outlets 360 can be formed as voids in an injection molding process (e.g., the mold prevents material from flowing into the area defining the fluid outlet 360), drilled or etched through the material of the segment 310 (via chemical or mechanical means), or formed as areas where material is not deposited in a three-dimensional or additive manufacturing process. Therefore, the size, shape, aperture, orientation, and pattern of the various fluid outlets 360 can be selected based on the desired flow characteristics and the manufacturing technology used to produce the segment 310.

[0095] According to an embodiment of the present disclosure, Fig. 6A and Figure 6B An isometric view of the cover 120 docking with the solids filter 130 is shown, wherein Figure 6B Provided Fig. 6A Detailed view of the intake port 122 shown in FIG. As shown, the lip 380 of the solid filter 130 has a larger perimeter than the rest of the solid filter 130, and the lip engages with the intake port 122 to position the solid filter 130 through the first through hole 124. In various embodiments, the lip 380 can define one or more filter alignment features 610 to engage with corresponding port alignment features 620 defined in the intake port 122. The filter alignment features 610 can include a cutout from the lip 380 that is configured to interface with an extension of the intake port 122 that defines the port alignment features 620.

[0096] For example, the filter alignment feature 610 can define an area of ​​reduced thickness relative to the remainder of the lip 380, and the cantilever clip (which forms a corresponding port alignment feature 620) engages with the filter alignment feature 410 to form a snap-fit ​​joint to align and hold the solid filter 130 in place relative to the viewing wall 510a (e.g., according to Figure 5A or Figure 5B In various embodiments, the relative thickness of the lip 380 prevents the port alignment feature 620 from engaging the solid filter 130 at sections other than the reduced thickness filter alignment feature 610 .

[0097] Similarly, a protrusion (e.g., a peg or lug) positively defined from the intake port 122 can engage with a through hole or cutout in the lip 380 to ensure a desired orientation of the solid filter 130 through the intake port 122. In other embodiments, a cutout or inclusion negatively defined in the intake port 122 can engage with a protrusion positively defined from the lip 380 to ensure a desired orientation of the solid filter 130 through the intake port 122. Additionally or alternatively, when the intake port 122 and the solid filter 130 are defined as having a non-circular cross-section (e.g., oval, flattened circular, rectangular, etc.), the corresponding shapes of the solid filter 130 and the intake port 122 can ensure a desired orientation of the solid filter 130 through the intake port 122.

[0098] Figure 7 An isometric view of an assembly of gaskets included in a collection device 100 according to an embodiment of the present disclosure is shown. The cover 120 includes a first compressible sealing gasket 140, which is oriented concentrically with the cover 120 relative to the central axis 210, and the fluid collector 110 includes a second compressible sealing gasket 150, which is also oriented concentrically with the fluid collector 110 relative to the central axis 210. When the cover 120 is engaged with the fluid collector 110, each orients the respective gasket with respect to the other such that the first mating surface 710 defined on the fluid collector 110 is oriented to engage with the first gasket 140, and the second mating surface 720 defined on the cover 120 is oriented to engage with the second gasket 150.

[0099] Each of the pair of first mating surfaces 710 / gasket 140 and second mating surfaces 720 / gasket 150 is configured to engage each other when the cover 120 is secured to the fluid collector 110, so that pressure between the cover 120 and the fluid collector 110 compresses the gasket and forms a seal between the fluid containment area 180 and the external environment. To ensure that the pressure is sufficient to maintain the seal, the cover 120 includes a plurality of receivers 740a-740c (collectively or generally referred to as receivers 740) and the fluid collector 110 includes a corresponding plurality of lugs 730a-730c (collectively or generally referred to as lugs 730) to form a twist-lock joint, which will be in Fig. 9 Typically, lug 730 is a male twist-lock engagement feature and receiver 740 is a female twist-lock engagement feature that form a twist-lock pair when engaged with each other.

[0100] although Figure 7740 and lug 730, but in various embodiments, more or fewer twist-lock pairs may be included. In some embodiments, the various twist-lock pairs are substantially evenly spaced around the perimeter of the collection device 100, such that the three twist-lock pairs shown are approximately 120 degrees from each other, but for N pairs, each twist-lock pair may be positioned approximately 360 / N degrees from each adjacent twist-lock pair, such that each twist-lock pair is positioned a given arc distance clockwise from a first neighbor and the same given arc distance counterclockwise from a second neighbor.

[0101] In various embodiments, the twist-lock pair of one receiver 740 and lug 730 includes a lug 730 that is larger than the other lugs 730 and can only be received by one receiver (e.g., because it is too large to be received by the other receivers 740 or has a different shape), thereby ensuring a specified orientation of the cap 120 relative to the fluid collector 110. In various embodiments, each lug 730 is substantially identical to the other lugs 730, and each receiver 740 is substantially identical to the other receivers 740, to allow the cap 120 to selectively interface with the fluid collector 110 in a variety of rotational alignments.

[0102] The fluid collector 110 may include various scales 750a-750e (collectively or generally referred to as scales 750) to indicate the fill volume collected by the fluid collector 110. In various embodiments, the scales 750a-750e may extend around the perimeter of the fluid collector 110, or may be located at discrete locations around the perimeter of the fluid collector 110. When located at discrete locations, the scales 750 may be located relative to where the solid filter 130 is located within the fluid collector 110 based on the positioning of the twist-lock pair and the intake port 122. Although Figure 7 Five scales 750a-750e are shown, but various embodiments may include more or less than five scales 750 associated with various volumes.

[0103] Figure 8 An isometric view of selectively securing the cover 120 to the fluid collector 110 according to an embodiment of the present disclosure is shown. Various engagement interfaces between the cover 120 and the fluid collector 110 are also combined. Fig. 9 , Fig. 10A and Fig. 10B Although the discussion provided focuses primarily on placing the cover 120 with the fluid collector 110 in an engaged configuration and selectively separating the cover 120 from the fluid collector 110 by a user acting primarily on the cover 120 and placing the fluid collector 110 below the cover 120, the actions described may similarly be applied via a user acting primarily on the fluid collector 110 or a user acting on both the cover 120 and the fluid collector 110 in various orientations.

[0104] When attaching the cap 120 to the fluid collector 110, the operator applies a downward force 810 to engage the lug 730 into the receiver 740, and then applies a rotational force 820 to the cap 120 relative to the fluid collector 110 in a first direction (e.g., clockwise) relative to the central axis 210. The internal features of the receiver 740 (with respect to Fig. 9 ) prevents the cover 120 from rotating relative to the fluid collector 110 beyond a predetermined distance, and once the cover 120 reaches the predetermined distance, the operator can release the downward force 810 and the rotational force 820 to maintain the seal in the collection device 100.

[0105] When removing the cap 120 from the fluid collector 110, the operator applies downward force 810 to separate the lug 730 from the receiver 740, and then applies a rotational force to the cap 120 relative to the fluid collector 110 in a second direction (e.g., counterclockwise) relative to the central axis 210. The internal features of the receiver 740 (with respect to Fig. 9 (discussed in more detail) once the seal is formed, the cover 120 is prevented from rotating in the second direction until the downward force 810 releases the lug 730 from the internal feature. Once released from the internal feature, the operator can apply a rotational force 820 to separate the cover 120 from the fluid collector 110 and break the seal.

[0106] Fig. 9 A time lapse of a twist lock engagement between a cap 120 and a fluid collector 110 according to an embodiment of the present disclosure is shown. As shown, one receiver 740 is relative to an internal feature of one lug 730, wherein the lug 730 is shown at three different times in four different positions 950a-950d relative to the internal feature of the receiver 740 to illustrate the selective engagement and disengagement between the lug 730 and the receiver 740.

[0107] The receiver 740 defines a path 910 on which the lug 730 travels when an appropriate force is applied to the fluid collector 110 and the cap 120. In various embodiments, a pair of intake ports 960a-960b are located at an entry / exit portion of the path 910 that receives or ejects the lug 730 from the receiver 740, as shown in the first position 950a. The intake ports 960 help align the lug 730 into the path 910 when an operator applies a downward force 810 to begin sealing the collection device 100. Thus, the intake ports 960a-960b define an inclined (e.g., non-parallel and non-perpendicular) surface relative to the downward force 810 to engage with the lug 730 and push the lug 730 into alignment with the receiver 740 when the downward force 810 is applied to the lug 730 via one of the intake ports 960.

[0108] The path 910 is defined by a first boundary wall 940a (collectively or generally referred to as boundary wall 940), a second boundary wall 940b, and a ramp 920 leading to a catch 930 designed to hold the lug 730 in place in the fourth position 950d (and thereby hold the cap 120 in place to the fluid collector 110) when rotated to the engaged position, and resist rotation out of the engaged position unless the downward force 810 rotates in opposition to the rotational force 820 used to engage the lug 730 in the catch 930. The boundary wall 940 prevents the lug 730 from rotating past the end of the path 910 in either rotational direction. The first boundary wall 940a prevents over-rotation in the counterclockwise direction, while the second boundary wall 940b permits over-rotation in the clockwise direction.

[0109] The ramp 920 provides an upward slope, and when in the second position 950b (and other positions not shown between the first position 950a and the third position 950c), the ramp 920 engages with the inclined portion 980 of the lug 730 to reduce the amount of downward force 810 that needs to be applied when rotating the lug 730 from the first position 950b to the fourth position 950d. When the lug 730 moves from the first position 950a to the third position 950c, the ramp 920 converts a portion of the rotational force 820 into a supplemental downward force that pushes the cover 120 downward when the lug 730 is adjacent to the catch 930, thereby reducing the strain of the operator directly applying the downward force 810 to the cover 120. In various embodiments, the slope of the inclined portion 980 matches the slope of the ramp 920 (e.g., both are at an X degree angle relative to the X direction). Depending on the slope, overall length, and height (in the Z direction) of the lug 730 , the angled portion 980 may constitute various portions of the length (in the X direction) of the lug 730 .

[0110] When the lug 730 moves over the catch 930 and into the third position 950c, the operator can release the downward force 810 and allow the upward resistance from the compression gasket to push the cover 120 upward and move the lug 730 to the fourth position 950. Similarly, when loosening the cover 120 and the fluid collector 110, the operator can work in the opposite direction: applying the downward force 810 to move the lug 730 from the fourth position 950d to the third position 950c, applying the rotational force 820 to move the lug 730 from the third position 950c to the second position 950b, and then to the first position 950a, after which the cover 120 can be removed from the fluid collector 110.

[0111] In various embodiments, at the portion of the ramp 920 located distally of the intake port 960 and proximal to the capture member 930, the vertical gap (in the Z direction) between the first boundary wall 940a and the ramp 920 is at least as large as the height (in the Z direction) of the lug 730 to allow the lug 730 to pass through the gap. Although the lug 730 is shown moving while in contact with the ramp 920, in various embodiments, the vertical gap may be too large to allow an operator (applying a sufficiently large downward force 810) to push the lug 730 into contact with the upper portion of the first boundary wall 940a, and then apply a rotational force 820 to move the lug 730 above the end point of the path 910 without contacting the ramp 920.

[0112] The horizontal gap (in the X direction) between the catch 930 and the first boundary wall 940a can be less than or equal to the length (in the X direction) of the lug 730 to force it to engage with the ramp 920 when the cover 120 is engaged or disengaged from the fluid collector 110. In various embodiments, the length (in the X direction) of the catch 930 is equal to or greater than the length of the lug 730. In addition, the depth of the catch 930 (measured in the Z direction from the point of contact with the ramp 920) can be less than, equal to, or greater than the height of the lug 730 to generally require a greater downward force 810 to move the lug 730 from the fourth position 950d to the third position 950c having a greater depth.

[0113] In various embodiments, the lug 730 includes a first magnet 970a (collectively or generally referred to as magnet 970), and the capture member 930 includes a second magnet 970b. The magnets 970 are permanent magnets of opposite polarity that provide an attractive force when close to each other to further help secure the lug 730 in the capture member 930 to maintain the seal between the cover 120 and the fluid collector 110, and thus require a greater downward force 810 to remove the lug 730 from the capture member 930 and break the seal. Therefore, in addition to designing any increasing depth for the capture member 930, the designer can also specify the strength of the magnet 970 to increase the amount of downward force 810 required to move the lug 730 from the fourth position 950d to the third position 950c. In some embodiments, one of the first magnet 970a or the second magnet 970b can be replaced by a ferromagnetic insert, which, despite having no magnetic strength itself, can magnetically couple when placed near the ferromagnetic insert. In various embodiments, the first magnet 970a may be included or extend into the angled portion 980 of the lug 730, or may be included only outside of the angled portion 980 (eg, on a "flat" or non-angled portion 980).

[0114] In various embodiments, when the cap 120 "clicks" into place on the fluid collector 110, the magnets 970 provide tactile or audible feedback to the operator, confirming that the components are properly aligned and a vacuum seal has been created.

[0115] although Fig. 9 Path 910 is shown with internal elements of receiver 740 which engage with cover 120 and fluid collector 110 using clockwise rotation (counterclockwise rotation separates cover 120 and fluid collector 110), but the elements shown may be mirrored about the Z axis to provide counterclockwise engagement (clockwise separation).

[0116] Fig. 10A and Fig. 10B A time lapse of a gasket sealing a collection device 100 is shown according to an embodiment of the present disclosure. Fig. 10A and Fig. 10B A cross-sectional view of the cover 120 engaging the fluid collector 110 is shown, wherein the lugs 730 engage corresponding receivers 740. A first gasket 140 is included in the cover 120 to interface with a first mating surface 710 (as a portion of the fluid collector 110 that is concentrically aligned with the first gasket 140). A second gasket 150 is included in the fluid collector 110 to interface with a second mating surface 720 (as a portion of the cover 120 that is concentrically aligned with the second gasket 250). The gaskets are configured to compress when pressure is applied between the cover 120 and the fluid collector 110, such as a downward force 810 applied by an operator when the cover 120 is engaged with the fluid collector 110, and to be held by the lugs 730 and receivers 740 when engaged, negative pressure supplied by the vacuum tube 190b, and combinations thereof, thereby establishing and maintaining an airtight seal.

[0117] In various embodiments, the gaskets may be made of various compressible materials to form an airtight seal, which may include various rubbers or rubber plastics, and the first gasket 140 may be made of the same or different material as the second gasket 150 .

[0118] The first gasket 140 surrounds the second gasket 150 such that the ring defined by the second gasket 140 (measured from its outer radius 1020) is smaller than the inner radius 1010 of the ring defined by the first gasket 140. Although the gaskets are deformable under pressure, the gaskets may have a substantially circular cross-sectional area when uncompressed, or may have cross-sectional areas of other shapes (e.g., oval, rectangular, irregular, etc.). In various embodiments, the cross-sectional areas of each of the first gasket 140 and the second gasket 150 may be substantially equal, or may be unequal, with one gasket having a cross-sectional area at least 10% larger than the other gasket. The gaskets may be installed in the corresponding cap 120 or fluid collector 110 by adhesive, pressure mounting (e.g., by the annular shape of the gasket mating with a groove or depression defined in the corresponding cap 120 or fluid collector 110), gravity, and combinations thereof.

[0119] The first mating surface 710 is located proximal to the opening plane 220 relative to the second mating surface 720, which allows the first gasket 140 to be compressed before the second gasket 150 is compressed (eg, Fig. 10B As shown, in the Z direction) is compressed (as Fig. 10A In other words, the first gasket 140 and the first mating surface 710 are configured to engage with each other when the cover 120 is secured to the fluid collector 110, but the second gasket 150 and the second mating surface 720 are configured not to engage with each other when the cover 120 is secured to the fluid collector 110 until a force is subsequently applied to bring the two into contact with each other.

[0120] In various embodiments, a stop surface 1030 is included in the fluid collector 110 to help capture the second gasket 150 and engage the second mating surface 720 to prevent over-tightening of the cap 120 or over-compression of the gasket.

[0121] Thus, when the cap 120 is engaged with the fluid collector 110, the operator can compress the first gasket 140 by downward force 810 to establish a seal for the collection device 100, but can leave the second gasket 150 in an uncompressed state. Fig. 10AOnce the threshold negative pressure is supplied to the fluid containment area 180, the suction will apply additional force to engage the second gasket 150 with the second mating surface 720, thereby forming a second seal between the cover 120 and the fluid collector 110. In various embodiments, the negative pressure threshold can be selected by the designer for various values ​​of the pressure difference between the external environment and the fluid containment area 180 to be at least 1 PSI below the current atmospheric pressure, 1 to 5 PSI below the current maximum pressure, 5 PSI below the current atmospheric pressure, 5-10 PSI below the current atmospheric pressure, 10 PSI below the current atmospheric pressure, 10-15 PSI below the current atmospheric pressure, or 15 PSI below the current maximum pressure.

[0122] The force required by the operator to establish the first seal is reduced by allowing the operator to establish the first seal without compressing the second gasket 150. In addition, by establishing two seals, the fluid containment area 180 is protected from loss of seal by one of the gaskets, and the collection device 100 may withstand greater negative pressures than a device using a single seal.

[0123] Fig.11A and Fig. 11B A cross-sectional view of a collection device 100 according to an embodiment of the present disclosure is shown, the collection device 100 including a pressure membrane 1110 within a fluid containment area 180. In various embodiments, the pressure membrane 1110 can be fastened to the interior of the wall 112 of the fluid collector 110 within the fluid containment area 180 by tape (double sided), glue, epoxy, or other adhesive.

[0124] In various embodiments, the pressure film 1110 is used to measure the pressure applied to the fluid-containing area 180, so that when pressure is applied, the pressure film 1100 displays a color density change corresponding to the pressure distribution. The pressure film 1110 can be used to indicate whether the fluid-containing area 180 has reached a desired pressure when suction is applied, or whether the desired pressure is maintained for at least a threshold time after the suction is applied (or removed). In various embodiments, the color change in the pressure film 1110 can be reversible (e.g., able to change back to the original color when the pressure is removed) or irreversible (e.g., permanently displaying the color associated with the highest / lowest pressure applied to date).

[0125] In order to indicate the pressure within the fluid receiving area 180, the pressure membrane 1110 provided therein is configured to change color in response to pressure changes in the fluid receiving area 80. Fig.11A As shown, the pressure film 1110 presents a first color, indicating a first pressure, and as shown in FIG. Fig. 11B As shown, the laminate 1110 exhibits a second color different from the first color, indicating exposure to a given pressure.

[0126] In various embodiments, the pressure film 1110 can be selected to exhibit various color changes at various pressures (e.g., from white to black, from red to green), and can gradually change color as pressure changes, or can change in response to experiencing a threshold pressure (e.g., maintaining a steady color until a threshold pressure is reached). In various embodiments, the pressure film 1110 changes color depending on the vacuum pressure to which it is exposed. When applied to the interior of the collection device 100, the pressure film 1110 can gradually change color as pressure changes, or can change in response to experiencing a threshold vacuum pressure (e.g., maintaining a steady color until a threshold vacuum pressure is reached).

[0127] In various embodiments, the pressure membrane 1110 provides the operator with a visual indication of the pressure or pressure changes within the collection device 100, thereby allowing the operator to easily troubleshoot if there are any leaks, inconsistent pressures, or unexpected pressures within the collection device 100. For example, if the operator believes that there is a leak in the collection device 100, but the pressure membrane 1110 within the collection device 100 shows that the vacuum pressure is being maintained, the operator does not need to disassemble the collection device 100 and can troubleshoot other system components, thereby reducing the time spent on troubleshooting.

[0128] The pressure membrane 1110 is positioned within the fluid collector 110 so as to be visible to an observer without removing the cover 120 from the fluid collector 110, and can be visible during operation of the collection device 100. Thus, when the cover 120 extends a first distance 1120a from the first plane 220, the pressure membrane 1110 is located at a second distance 1120b from the first plane 220 to allow unobstructed observation. In addition, when the plurality of fluid outlets 360 in the solid filter 130 are located at least a third distance 1120c from the first plane 220, the second distance 1120b is defined to be less than the third distance 1120c to prevent the fluid 530 from contacting the pressure membrane 1110. In other words, the height at which the pressure membrane 1110 is disposed in the fluid receiving area 180 is set to be between the cover 120 and the first portion 370a (or the collection surface 350) of the solid filter 130.

[0129] Because the solids filter 130 and the backflow filter 170 extend into the fluid collector 110 through the area defined by the second distance 1120b, in various embodiments, the pressure membrane 1110 may extend around the inner periphery of the wall 112 of the fluid collector 110 to ensure visibility. In other embodiments, one or more lengths of the pressure membrane 1110 may be provided at different locations around the periphery of the wall 112 within the area defined by the second distance 1120b to enable the use of fewer pressure membranes 1110 while also ensuring visibility (from various angles) that is not obstructed by the solids filter 130 or the backflow filter 170.

[0130] Fig.12 1 is a flow chart of a method 1200 for assembling and using a collection device 100 according to an embodiment of the present disclosure. The method 1200 begins at block 1210, where a user assembles a solid filter 130. In various embodiments, the user connects two sections 310 together to assemble the solid filter 130, and the solid filter 130 can include two identical sections 310, or two sections 310 including one or more fluid outlets 360 of different numbers, positions, orientations, and apertures in each section 310. Thus, the combined sections 310 provide a solid filtration device for the collection device 100 that can be customized by the user to provide various flow rates and flow paths for the fluid 530. In addition, the translucent walls of the sections 310 allow for visual inspection when the solid filtration device is in use to determine whether the fluid 530 is flowing through the solid filtration device (and its rate), and whether any solids 540 are collected by the solid filtration device.

[0131] Despite Fig.12 In the method 1200, block 1210 occurs before block 1220, but in various embodiments, in the method 1200, block 1220 may occur before block 1210 or substantially simultaneously with block 1210. Similarly, although in Fig.12 In the method 1200, block 1210 occurs before block 1230, but in the method 1200, block 1230 may occur before block 1210 or substantially simultaneously with block 1210. Furthermore, in some embodiments, block 1210 may be omitted from the method 1200 if a preassembled or one-piece solid filter 130 is used.

[0132] At block 1220, the user (optionally) attaches the internal components to the pressure containment device before forming the airtight seal. In various embodiments, the internal components include a pressure indicating device that is secured to the inner wall of the fluid collector 110 to serve as part of the fluid containment area 180. In various embodiments, the pressure indicating device is secured to the inner wall by an adhesive, but may also be secured by a cutout, bracket, or pressure clip built into the inner wall.

[0133] In various embodiments, a user may select a variety of pressure membranes 1110 having various sensitivities and pressure measurement ranges for use as a pressure indicating device to allow a user to visually check through the translucent wall 112 of the fluid collector 110 whether a desired negative pressure has been achieved or maintained during operation of the collection device 100. In addition, the pressure indicating device may provide an indication to the user whether the pressure applied to the fluid containment area 180 has been maintained for at least a predetermined amount of time after the fluid collector 110 may be disengaged from a collection target or negative pressure source to verify that an airtight seal has been maintained.

[0134] In various embodiments, during block 1220, the user can additionally or alternatively secure an aerosol filtering device (e.g., backflow filter 170) to lid 120 to reduce the ingestion of any fluid or aerosolized components thereof collected in fluid receiving area 180, preventing it from flowing out of fluid receiving area 120 or being drawn into the negative pressure source when negative pressure is applied. In various embodiments, once lid 120 is selectively engaged to fluid collector 110, the aerosol filtering device is disposed within fluid receiving area 180.

[0135] At block 1230, the user attaches the cover 120 to the fluid collector 110. In various embodiments, the user places the cover 120 in contact with the opening of the fluid collector 110, applies a downward force 810 to seat the cover 120 onto the fluid collector 110, and applies a rotational force 820 in a first direction to engage the plurality of twist locks to ensure that an airtight seal is formed and maintained between the cover 120 and the fluid collector 110. In various embodiments, the cover 120 and the fluid collector 110 are joined to form a pressure containment device that includes the fluid containment region 180, and at least a portion of the pressure containment device is translucent (e.g., the fluid collector 110) to allow for visual inspection of the pressure containment device when in use.

[0136] In various embodiments, the cover 120 and the fluid collector 110 include a first sealing device and a second sealing device to form an airtight seal, such as a first gasket 140 and a first mating surface 710 and a second gasket 150 and a second mating surface 720 (with respect to Fig. 10A and Fig. 10B140 and 141). In various embodiments, an airtight seal is initially formed by a first sealing means (e.g., first gasket 140 and first mating surface 710) and is later supplemented by a second sealing means when negative pressure draws cover 120 more tightly onto the fluid collector (e.g., during block 1240). Thus, a user can apply downward force 810 and rotational force 820 to engage a plurality of first engagement means (e.g., receivers 7410) with a plurality of second engagement means (e.g., lugs 730), thereby sealing the pressure containment device via the first sealing means, but the second sealing means may remain unengaged until negative pressure is applied to the pressure containment device via a source of negative pressure.

[0137] At block 1240, the user secures the solid filter into the fluid containment area 180. In various embodiments, engagement features in the solid filter 130 and the cover 120 position the solid filter 130 in a desired position relative to the wall 112 of the fluid collector 110, which may include an off-center position (e.g., to position the solid filter 130 closer to one side of the fluid collector 110 for ease of visual inspection). The engagement features may include the relative shapes of the corresponding ports or through-holes in the solid filter 130 and the cover 120, various filter alignment features 610 or port alignment features 620, such as with respect to Fig. 6A and Figure 6B In various embodiments, the solids filtration device is secured into the fluid containing area via a shroud 160 that interfaces with a port included in the cover 120 .

[0138] At block 1250, the user places the collection device 100 in fluid communication with a negative pressure source and a filtration target. In various embodiments, the fluid communication device includes an intake tube 190a and a vacuum tube 190b, which are connected to relevant ports or through-holes included in the cover 120 and are connected to the filtration target (e.g., a blood vessel or a port associated with a blood vessel) and a negative pressure source (e.g., a vacuum pump), respectively.

[0139] At block 1260, the user applies negative pressure to the filtration target via the fluid communication device. In various embodiments, the user places the vacuum or other negative pressure source in an operating mode to apply negative pressure or suction to the fluid receiving area 180. Because the pressure receiving device is disposed between the negative pressure source and the filtration target and is in fluid communication, the applied negative pressure causes the fluid 530 from the filtration target to be pulled or sucked into the fluid receiving area 180. The relative position of the solid filter device in the flow path of the fluid 530 allows the solid filter device to capture various solids 540 included in the fluid 530 (e.g., based on the size and position of the fluid outlet 360 relative to the solids 540).

[0140] At block 1270, the user confirms whether the collection criteria have been met. When the collection criteria are met, the method 1200 proceeds to block 1280; otherwise, the method 1200 continues until the collection criteria are met. In various embodiments, the collection criteria include at least one of the following: the total amount of fluid collected in the fluid receiving area 180, whether solids 540 are collected in the solid filter 130, the amount of solids 540 collected in the solid filter 230, the desired flow rate of the fluid 530 at the corresponding pressure difference provided by the negative pressure source, a time limit, etc.

[0141] At block 1280, the user separates the collection device 100 from the filtration target. In various embodiments, separating the collection device 100 includes shutting off the negative pressure source and removing the fluid communication device from the pressure containment device. In various embodiments, in order to maintain the negative pressure applied when the fluid communication device is removed, the user can manually engage one or more seals or valves in the fluid communication path (e.g., at a port or cover of the fluid collection device 100) before removing the fluid communication device, or the fluid communication path can include various one-way valves or other automatic sealants that can prevent air flow when the fluid communication device is removed without further user intervention.

[0142] In various embodiments, after separating the collection device 100 from the filtration target, the user can seal the collection device 200 (apply negative pressure) for a predetermined period of time to observe the collected fluid 530 and any collected solids 540 without exposing the contents to the external environment. Because the wall 112 and the solid filter 130 are translucent, the user can periodically observe the status of the collection device 100 (and its contents), and the collection device 100 can include a pressure membrane 1110 to verify the internal pressure of the collection device 100.

[0143] In various embodiments, a user may selectively detach the cover 120 from the fluid collector 110, or selectively detach the solids filter 130 from the cover 120 (and cover 160) to remove the collected fluid 530 or solids 540 for further inspection or use.

[0144] The method 1200 may end after block 1280 , or may restart using some or all of the previously assembled components to continue collecting fluids 530 and / or solids 540 from the filtration target.

[0145] The description and illustration of one or more embodiments provided in the present disclosure are intended to provide a thorough and complete disclosure of the full scope of the subject matter to those of ordinary skill in the relevant art, rather than to limit or restrict the scope of the subject matter claimed in any way. The aspects, examples and details provided in the present disclosure are considered to be sufficient to convey possession, and enable those of ordinary skill in the relevant art to practice the best mode of the subject matter claimed. The description of the structures, resources, operations and behaviors that are known to those of ordinary skill in the relevant art may be brief or omitted to avoid obscuring the little-known or unique aspects of the subject matter of the present disclosure. Unless otherwise expressly noted herein, the subject matter claimed for protection should not be interpreted as being limited to any embodiment, aspect, example or detail provided in the present disclosure. Whether collectively or individually displayed or described, various features (structures and methods) are intended to be selectively included or omitted to produce an embodiment with a specific feature set. In addition, any or all functions and actions shown or described may be performed in any order or simultaneously.

[0146] After having obtained the description and illustrations of the present disclosure, ordinary technicians in the relevant art may conceive of changes, modifications and alternative embodiments that fall within the spirit of the broader aspects of the general inventive concept provided in the present disclosure, without departing from the broader scope of the present disclosure.

[0147] As used in this disclosure, a phrase referring to "at least one" of a list of items refers to any set of those items, including sets with single members and every potential combination thereof. For example, when referring to "at least one of A, B, or C" or "at least one of A, B, or C," the phrase is intended to cover the following sets: A, B, C, AB, BC, and ABC, where these sets may include one or more instances of a given member (e.g., AA, AAA, AAB, AABBCCC, etc.) and any order thereof.

[0148] As used in this disclosure, the term "determine" includes various actions that may include calculating, operating, processing, deriving, investigating, searching (e.g., through a table, database, or other data structure), determining, receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), retrieving, parsing, selecting, choosing, establishing, etc.

[0149] As used in this disclosure, the terms "substantially," "approximately," "about," and other relative terms include values ​​within ±5% of the stated quantity, percentage, or range, unless a different approximation is explicitly stated in relation to the state quantity, percentage, or range, or if the context of the value indicates that a different approximation is more appropriate. For example, a value identified as about X% may be understood to include values ​​between 0.95*X% and 1.05*X% or between X-.05X and X+.05X%, but may stop at zero or one hundred percent in various cases. In another example, a feature described as being substantially parallel or perpendicular to another feature should be understood to be parallel or perpendicular within ±9 degrees. Any value expressed in relative terms should be understood to include the stated value and any range or sub-range between the indicated or implied extremes.

[0150] As used in this disclosure, all numbers given in the examples (whether approximate or otherwise expressed) inherently include values ​​within the precision and rounding error range of the number. For example, the number 4.5 should be understood to include values ​​from 4.45 to 4.54, while the number 4.50 should be understood to include values ​​from 4.495 to 4.504. In addition, any number or range that explicitly or by context refers to an integer number (e.g., approximately X users, between approximately Y and Z states) should be understood to be rounded down or up to the next integer value (e.g., X±1 users, Y-1 and Z+1 states).

[0151] The following claims are not intended to be limited to the embodiments shown herein, but should be given the full scope consistent with the language of the claims. In the claims, unless explicitly stated, reference to a singular element does not mean "one and only one", but "one or more" or "at least one". Unless otherwise explicitly stated, the word "some" refers to one or more. Unless the term "means" or "step" is explicitly used to state the element, no claim element shall be interpreted under the provisions of Section 112(f) of Title 35 of the United States Code. All structural and functional equivalents of the elements of the various aspects described in this disclosure, which are known or will be known to a person of ordinary skill in the relevant art, are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, regardless of whether anything disclosed in this disclosure is explicitly cited in the claims, nothing in this disclosure is intended to be dedicated to the public.

Claims

1. A collecting device, comprising: a cover (120) comprising a first gasket (140) and a first mating surface (720) oriented concentrically with the central axis (210); and A fluid collector (110) comprising a second gasket (150) and a second mating surface (710) oriented concentrically with the central axis, wherein the second gasket is positioned to engage with the first mating surface and the second mating surface is positioned to engage with the first gasket when the cover is selectively engaged with the fluid collector.

2. The collecting device according to claim 1, wherein: The first gasket and the first mating surface are configured to engage with each other when the cover is secured to the fluid collector, wherein the second gasket and the second mating surface are configured not to engage with each other when the cover is secured to the fluid collector until a threshold negative pressure is supplied to a fluid containing area (180) defined by the cover and the fluid collector.

3. The collecting device according to claim 1, wherein: The outer radius (1020) of the second gasket is smaller than the inner radius (1010) of the first gasket.

4. The collecting device according to claim 1, wherein: The cover includes an intake port (122) defining a first through hole, and the collection device further includes: a solid filter (130) defining a plurality of fluid outlets (360) and configured to selectively interface with the intake port to dispose the plurality of fluid outlets through the first through-hole and into a fluid receiving area (180) defined between the cover and the fluid collector; an intake tube (190a); and A cover (160) is configured to secure the solid filter in the first through hole and to secure the intake pipe into the solid filter via a one-way valve.

5. The collecting device according to claim 4, wherein: The fluid collector and the solid filter are translucent.

6. A collecting device comprising: A pressure containment device having a fluid containment region (180), and wherein at least a portion of the pressure containment device is translucent; a solid filter device disposed in the fluid containing area, wherein the solid filter device is translucent; a first fluid communication device connected to the pressure containment device and separated from the fluid containment area via the solids filtration device; and A second fluid communication device is connected to the pressure containment device and a negative pressure source to apply negative pressure in the fluid containment area to draw fluid through the first fluid communication device and through the solid filtering device into the fluid containment area.

7. The collecting device according to claim 6, further comprising: An aerosol filtering device is disposed within the fluid containing area and connected to the second fluid communication means to reduce the ingestion of the fluid from the fluid containing area into the second fluid communication means when the negative pressure is applied.

8. The collecting device according to claim 6, wherein: The solids filter device is retained in the fluid containment area via an engagement feature that interfaces with a first through hole in a cover (120) of the pressure containment device, wherein the first through hole is non-concentrically positioned relative to a central axis (210) of the pressure containment device to position the solids filter device eccentrically relative to the central axis.

9. The collecting device according to claim 6, wherein: The pressure containment device comprises a fluid collector (110) having a first sealing device and a second sealing device, and a cover (120).

10. The collecting device according to claim 9, wherein: The cover includes a plurality of first engaging devices, and the fluid collector includes a plurality of second engaging devices, each of the plurality of second engaging devices engaging with a corresponding first engaging device among the plurality of first engaging devices via a downward force and a rotational force in a first direction applied to the cover when in contact with the fluid collector, so as to seal the pressure containing device via the first sealing device.

11. The collecting device according to claim 10, wherein: The second sealing device does not engage until negative pressure is applied to the pressure containing device via the negative pressure source.

12. The collecting device according to claim 10, wherein: Each first engagement device of the plurality of first engagement devices comprises a magnet (970); and The capture member (930) included in each second engagement device includes ferromagnetic inclusions to magnetically dock with the magnet of the corresponding first engagement device, and when the pressure containing device is sealed, the capture member captures the corresponding first engagement device.

13. The collecting device according to claim 10, wherein: Each second engagement mechanism of the plurality of second engagement devices includes a magnet (970) in a capture member (930) that captures a corresponding first engagement device when the pressure containment device is sealed; and Wherein, each first engagement device of the plurality of first engagement devices comprises a ferromagnetic inclusion to magnetically engage with a magnet of a corresponding second engagement device when the pressure containing device is sealed.

14. The collecting device according to claim 10, wherein: Each of the plurality of first engagement devices comprises a first magnet (970a) of a first polarity; and Wherein, each second engagement mechanism of the plurality of second engagement devices comprises a second magnet (970b) of a second polarity in a capture member (930), and when the pressure containing device is sealed, the capture member captures the corresponding first engagement device to magnetically dock with the first magnet of the corresponding first engagement device.

15. The collecting device according to claim 6, further comprising: A pressure indicating device is disposed in the fluid containing area and is visible from outside the fluid containing area.

Images