EP4330157A1 - Kugelförmiger kanister - Google Patents

Kugelförmiger kanister

Info

Publication number
EP4330157A1
EP4330157A1 EP21939576.1A EP21939576A EP4330157A1 EP 4330157 A1 EP4330157 A1 EP 4330157A1 EP 21939576 A EP21939576 A EP 21939576A EP 4330157 A1 EP4330157 A1 EP 4330157A1
Authority
EP
European Patent Office
Prior art keywords
canister
hemispherical
spherical
hemisphere
beltline
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21939576.1A
Other languages
English (en)
French (fr)
Other versions
EP4330157A4 (de
Inventor
Brian T. LEADINGHAM
Patrick C. Tetzlaff
Alex J. GRUBER
Luke A. WESTHOFF
Russ Johnson
Ken CHUNG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spherical Canister LLC
Original Assignee
Spherical Canister LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/243,907 external-priority patent/US20220031926A1/en
Application filed by Spherical Canister LLC filed Critical Spherical Canister LLC
Publication of EP4330157A1 publication Critical patent/EP4330157A1/de
Publication of EP4330157A4 publication Critical patent/EP4330157A4/de
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/60Containers for suction drainage, adapted to be used with an external suction source
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64Containers with integrated suction means
    • A61M1/66Pre-evacuated rigid containers, e.g. Redon bottles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3379Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3389Continuous level detection

Definitions

  • the p prreesseenntt invention relates to vacuum technology and mmoorree specifically, to an apparatus for storage of ff lluuiiddss under vacuum. More specifically, the
  • a canister having two hemi spherically shaped components whereas a seal joint, or interface is located within the useable collection volume .
  • the canister assembly is used for storage of fluids under vacuum.
  • Medical suction is used not only to clear airways and drain fluids. but also to resuscitate critically ill patients, collect waste, recycle blood from the surgical field, assist in difficult deliveries of newborns, facilitate wound healing, and clear waste gasses
  • surgical suction canisters 5 excess fluids are deposited in a surgical suction canister .
  • the prior art for surgical suction canisters provides that they can be reusable, semi -reusable, and disposable.
  • Reusable canisters consist of a rigid plastic base and a plastic lid. They were developed to lower the cost per
  • Semi- reusable canisters feature disposable lliinneerrss and lids combined with a reusable outer canister which is net intended to have contact with waste fluid.
  • Disposable suction canisters consist of a base canister and a lid.
  • Reusable fluid collection systems require the complete disposal of waste from the canister after each use .
  • the canisters must also be thoroughly cleaned and
  • Disposable canisters provide the benefit of reducing risk of exposure and cross contamination because they are discarded after each use. Disposable canisters, however, are challenged to minimize the amount of plastic used to reduce the cost and plastic material waste, yet
  • Prior art disposable suction canister systems have taken the ssaammee basic shape and construction for decades .
  • Traditional disposable canisters are created using a canister with a lid.
  • the canister shape is mostly cylindrical and typically injection molded f rom a plastic
  • the lids are generally f lat or slightly domed and contain ports for tubing attachment .
  • the lids are typically made from commodity plastics such as ABS, Polystyrene, Polyethylene oorr Polypropylene . Collected
  • the sealing rib iiss typically dimensionally larger than the inner
  • a suction canister is under constant vacuum during use with high vacuum settings .
  • One of the primary structural functions of the canister is to withstand the high levels of vacuum without deforming, leaking, or breaking, In terms of structural integrity,
  • Lids oonn existing cylindrical canisters are nearly flat or slightly domed in order to increase lid sti f fness . Under high vacuum, traditional lids will often deform significantly, effectively storing
  • canister reflux a condition often referred to as canister reflux.
  • waste fizid can spray from the canister oorr canister ports placing clinicians and equipment at risk of exposure to potentially dangerous fluids .
  • the present invention is a canister for vacuum storage and distribution of fluids .
  • the canister comprises a first hemispherical component and a second hemispherical
  • the canister design addresses the challenges facing ttrraaddiittiioonnaall disposable canisters by means of
  • a first hemispherical component and a second hemispherical component aarree sealably connected at a beltline to form the spherical shape of the canister with
  • the beltline is located below the maximum fluid collection height in the cavity, and within the collection volume of the canister cavity, The collection volume is the volume of the cavity capable of storing a fluid.
  • beltline 25 may be in contact with the beltline . Therefore, with liquid in contact wi th the sealing location of the canister or beltline, a liquid tight and air-tight seal is established and maintained uunnddeerr typical. operating conditions . Applicant defines the term "beltline" for the purpose of
  • this invention to be an equatorial seal about a perimeter of the canister positioned at least substantially close to halfway between the poles of the hemisphere components of the canister . If there is a question between the definitions provided in this application for either of "collection
  • the spherical canister of the present invention has at least one molded polished surface at the sealing location of the beltline .
  • the canister may be comprised of a polymer seal, e .g. a
  • thermoplastic polymer which provides sealable contact for the canister .
  • the spherical canister may also include indicia for a measurement of a volume of the fluid within the cavity.
  • the first hemispherical component of the canister has a domed shape to resist mechanical stress oorr stresses during vacuum storage .
  • the canister may also include latches or
  • the canister may have an ellipsoid shape made of hemispherical components .
  • This shape may further have a third cylindrical component
  • Figure i is a perspective view of a first
  • Figure 2 is a perspective view of Figure 1 with the hemispherical components of the canister in connection along a beltline of the canister.
  • Figure 3 is a cross-sectional view, taken through line 3-3 of Figure 22,, illustrating the hemispherical components of the canister separated along the belt line of the canister .
  • Figure 33AA iiss a close-up perspective cross-
  • Figure 4 is a cross-sectional view. taken through line 4-4 of Figure illustrating the hemispherical components of the canister in connection along the beltline of the canister.
  • Figure 5 is a close-up cross-sectional view, taken through line 5-5 of Figure 2, illustrat ing the hemispherical components of the canister in connection along the beltline of the canister.
  • Figure 6 is a close-up focused perspective view of
  • Figure 7 is a cross- sectional view, through line 7-7 of Figure 6 illustrating the hemispherical components
  • Figure 8 is a cross-sectional view, taken through line 8 -8 of Figure 6 illustrating the hemispherical components of the canister in close proximity to connection at the beltline latch.
  • Figure 9 is a close-up focused cross-sectional view, taken through line 9-9 of Figure 6, illustrating the hemispherical components of the canister in connection at the beltline latch .
  • Figure 10 is a cross-sectional view of a Second
  • 35 embodiment of the canister of the invention illustrating the hemispherical components of canister separated along the beltline of the canister.
  • Figure 10A is aa close-up perspective cross- sectional view of the first hemispherical component of the
  • Figure 11 is a cross-sectional view of a third embodiment of the canister of the invention, illustrating the hemispherical components of the canister separated along the beltline of the canister.
  • Figure 11A is a close-up cross-sectional view of the embodiment shown in Figure 11, illustrating the hemispherical components of the canister in connection at the beltline latch .
  • Figure 12 is a cross-sectional view of a fourth
  • Figure 12A is a close-up cross-sectional view of the embodiment iinn Figure 12, illustrating the
  • Figure 13 is a close-up perspective view of the hemispherical components of the canister shown in Figure 12.
  • Figure 13A is a cldse-up perspective view the embodiment shown in Figure 13, illustrating aa second embodiment of the beltline latch of the first hemispherical component of the canister in a connected position .
  • Figure 14 is a bottom perspective view of the
  • Figure 14A is a close-up bottom perspective view of the canister in Figure 14 , illustrating a connection ledge .
  • Figure 14B is a close-up cross-sectional view of the canister in Figure 14, illustrating the hemispherical components of the canister in connection at the belt line latch.
  • Figure 15 is a further cross-sectional view of
  • Figure ISA is a close-up cross-sectional view of another embodiment of the canister of the invention.
  • Figure 16 is a cross-sectional view, taken through line 16-16 of Figure 2, illustrating an internal volume of the canister filled with a liquid to a first position above
  • Figure 17 is aa ccrroossss--sseeccttiioonnaall view, taken through line 17-17 of Figure 2, illustrating the internal volume of the canister filled with the liquid to a second position in close proximity to a top of the canister.
  • Figure 18 is a close-up perspective view of the second hemispherical ccoommppoonneenntt of the canister, i llustrating a second embodiment of indicia .
  • Figure 19A is aa side view of a seventh embodiment of the canister.
  • Figure 19B is a side view of an eighth embodiment of the canister.
  • Figure 19C is a side view of a ninth embodiment of the canister.
  • Figure 19D is a side view of a tenth embodiment
  • the canister 2 comprises a f irst hemispherical 4 and a second hemispherical component 6.
  • the hemispherical components aarree essentially
  • the canister may have an ellipsoid shape made of hemispherical components (4, 6) , see Figures ISA to ISC .
  • This shape may further have a third cylindrical component separating tthhee hemispherical
  • the first hemispherical component 4 and the second hemispherical component 6 are seaiably connected at a beltline 36 to form the canister having a cavity 40 for storing liquid.
  • This beltline 36 may be located below the
  • the collection volume 108 is the volume of the cavity 40 which is
  • fluid in the canister cavity 40 may be in contact with the beltline 36. Therefore, a liquid tight and air- tight seal will be maintained under typical, operating conditions even with a negative pressure applied within the cavity 40
  • the first hemispherical component 4 is defined by a f i rst hemispherical component shell 8 defined by a first hemispherical component outer surface 16.
  • the first hemispherical component 4 has aa first hemispherical
  • the first hemispherical component base 20 has a first hemispherical component base perimeter 19.
  • the 5 20 has a f irst hemispherical component opening 12.
  • the first hemispherical component opening 12 extends towards the pole 22, forming a f irst hemispherical component cavity 23.
  • a rim 25 is located at the base 20 around the f irst. hemispherical component base perimeter 19. The rim 25
  • first hemispherical component beltline 27 Positioned along the first hemispherical component beltline 27 are a plurality, e .g . six, latches 29 to assist in securely attaching the hemispherical components 4 and 6 to one another.
  • the latches 29 are positioned
  • the second hemispherical component 6 is defined by a second hemispherical component: shel l 10, further comprising a second hemispherical component outer surface 18. Similar to
  • the shape of the first hemispherical component 4 the second hemispherical component 6 has aa second hemispherical component pole 26, with the shell 10 extending from the pole 26 in a parabolic shape 24 to a second hemispherical component base 28, thereby defining the second
  • the second hemispherical component base 28 has a second hemispherical component base perimeter 30.
  • the base 28 has aa second hemispherical component opening 32, extending towards the pole 26, forming a second hemispherical component cavity 14 .
  • the 30 33 is located at the base 28 around the second hemispherical component base perimeter 30.
  • the rim 33 further has a lip 34.
  • the second hemispherical component base 28 is positioned in alignment with, and facing, the first
  • the alignment of the bases (20, 28 ⁇ is provided by alignment of the first hemispherical component shell 8, at the first hemispherical component base 20, with the second hemispherical component shell 10, at the second hemispherical component base 28.
  • the hemispherical components 4 and 6 aarree connected along a canister beltline 36.
  • the canister beltline comprises the rim 25 and the l ip 34 in communication with one another about the canister perimeter 38.
  • the 10 38 is substantially equivalent to either or both of the first hemispherical component base perimeter 19 and the second hemispherical component base perimeter 30.
  • the latches 29 also comprise part of the canister beltline 36.
  • 15 second hemispherical component cavity 14 combine along the beltline 36 to provide for a canister cavity 40, defined by a canister shell 42.
  • the canister shell 42 has an outer surface 44 with indicia 45
  • the indicia 45 provide volume measurements of the amount of fluid within the canister 40, and wi ll be discussed further below on Figure 17.
  • the canister 2 also includes one or more ports
  • the ports 46 extend upward from the first hemispherical component shell 8 and are preferably molded with the shell 8 as a unitary piece .
  • support members 47 located near the second hemispherical component pole 26.
  • the support members 47 provide a means for supporting the canister 2 oonn aa surface .
  • support means 47 allow for the canister 2 to rest on a surface, it is understood the arrangement will fall within the scope ooff tthhee p prreesseenntt invention .
  • support members 47 could be eliminated and the canister can rest upon a separate annular shaped or
  • the canister 2 preferably comprises a spherical shape 48 .
  • the canister provides a pressure vessel unique from the prior art . It has been observed, when a stress calculation is performed
  • the stress in the shells (8, 10) of the canister 2 components is of a comparable cylindrical pressure vessel of the prior art. Therefore, the canister
  • the canister shell 42 15 requiring the canister shell 42 to be at least half the wall thickness, if not thinner, of a comparable sized cylindrical canister of the prior art .
  • Another advantage to the spherical shape 48, ellipsoidal, or nearly spherical, shape, of the canister 2 of the invention is the more efficient shape when comparing the volume of the shape to the surface area of the shape.
  • the canister 2 of the invention occupies 15% less surface floor or surface area when in use or storage as compared to a cylindrical canister of the
  • the canister 2 has a reduced spatial occupancy, when in operation and storage, as compared tc prior art cylindrical canisters having a substantially equivalent fluid holding voltune as that of the canister 2. Spatial occupancy is defined as the volume of space occupied
  • cylindrical canisters are nearly flat or have a very small amount of domed section in order to increase lid stiffness .
  • the additional stiffness of the present invention makes the des ign of the invention significantly less prone ttoo reflux, as deformations of the canister 2 are minimal, thus stored
  • the rim 25 comprises two substantially parallel annular ribs, a first hemispherical component outer rib 50 and a first hemispherical component inner rib 52, and a rib shelf 110 connecting the outer rib 50 and the
  • the rib shelf 110 contributes to providing a continuous band of positive surface pressure around the entire canister beltline 36 (see Figure 4) of the canister 2.
  • the rib shelf 110, the outer rib 50 and the inner rib 52 are provided about the first hemispherical
  • the rim 25 has a first hemispherical component channel 54, defined by the positioning of the outer rib 50 and inner rib 52 with respect to the rib shelf 110.
  • the outer rib 50 preferably extends a length LI (58) and the inner rib preferably
  • the 10 extends a length L2 (60) .
  • the length Li (53) is greater than the length L2 (60) .
  • the outer rib 50, and inner rib 52 terminate to provide for a channel opening 56 in the direction of the second hemispherical component 6.
  • 15 further provides for an inner rib outer surface 72, facing the outer rib 52 and opposite tthhee first hemispherical component cavity 23 and eventual canister cavity 40, (shown in Figure 4 ) .
  • the outer surface 72 is molded with a polished finish 70, thereby removing
  • the polished surface 72 contacts an inner surface 69 of the outer rib 52 of the second hemispherical component 6 to provide for increased sealing properties of the canister 2 as shown in Figures 4 and 55..
  • 25 component inner rib 52 has an outer diameter (DI) 98 defined by the polished outer surface 72 (see Figures 3 and 5) .
  • the rim 33 comprises an outer second hemispherical component annular rib 62 and an inner second hemispherical component annular
  • rib 64 extending about: the second rib base perimeter 30.
  • the ribs 62 and 64 are substantially parallel with one another, thereby separated by a length L3 (65) , and thus define an annular second hemispherical component channel 67 extending about the second hemispherical component base
  • the outer rib 33 further provides for an inner surface 69, facing the inner rib 64 and the second hemispherical component cavity 14, and eventual canister cavity 40 (shown in Figure 4) .
  • the inner surface 69 facing the inner rib 64 and the second hemispherical component cavity 14, and eventual canister cavity 40 (shown in Figure 4) .
  • 5 surface 69 also comprises a polished surface 70, to minimize or remove manufacturing scratches and imperfections.
  • the polished surface (69, 70) contacts the outer surface 72 of the inner rib of the first hemispherical component to provide for increased sealing properties of the canister 2.
  • the second hemispherical component outer rib 33 has an inner diameter (D2) 99 def ined by the polished outer surface (69, 70) .
  • the outer second hemispherical component annular rib 62 is positioned within the first hemispherical component channel 54. Further, the f irst hemispherical component inner rib 52 is positioned within, or in substantial proximity to, the second hemispherical
  • the communication of the first hemispherical component 44 aanndd sseeccoonndd hemispher ical component 6 is along the canister beltline 36 about the canister perimeter 38. In doing so, the ribs (50, 52, 62, 64) are layered in the following orientation from the canister
  • outer second hemispherical component annular rib 62 is in substantial contact with the polished outer surface (70, 72) of the first hemispherical component inner rib 52 to provide for a liquid tight and air-tight sealing of the canister 2.
  • the liquid tight and air-tight seal are provided because
  • the outer diameter (DI) 98 of the first hemispherical component inner rib 52 is greater than the inner diameter (D2) 99 of the second hemispherical component outer rib 62. This relation causes the inner rib 52 to press against the outer rib 62 and provides for the continuous band of
  • the shape provides for minimal distortion, thus allowing for the continuous band of positive surface pressure to be achieved and maintained about the beitline 36.
  • the beitline 36, connection location 95 (see 16 and 17) may be located within a
  • each opening 73 comprises a through hole through the first hemispherical component outer rib 50 of the canister beltline 36.
  • the latch 29 is connected to an outer flange, at a first
  • the latch 29 extends opposite the first location 74, towards the first hemispherical component pole 22 and terminates at a handle 76 within the opening 73.
  • the handle 76 has an outer lip 79 positioned opposite the first hemispherical
  • the outer surface 77 of the outer rib 50 is opposite the channel 54 and is a component of the canister shell outer surface 44 (see Figure 1 ) .
  • the handle outer surface, or surfaces, 80 are substantially planar
  • Figure 9 illustrates the airtight arrangement .
  • the handle oouutteerr surfaces 80 are substantially planar with respect to the outer surface 77.
  • the lip extension surface 68 is in contact with and rests
  • each latch 29 is designed
  • the latches 29 further support the maintenance of a continuous band of positive surface pressure around the entire sealing canister beltline 36 of the canister 2 , because the rib
  • shelf 110 contributes to providing a continuous band of positive surface pressure at the location of the latch 29.
  • the latches 29 support maintaining the first hemispherical component 4 in a sealed connection with the second hemispherical component 6.
  • FIG. 15 With attention to Figures 10 and 10A, a second embodiment of the canister 102 of the invention is illustrated.
  • the canister 102 is similar to canister 2 except that a plastic seal layer is included with canister
  • the second hemispherical component 6 comprises a
  • a second hemispherical component polymer section seal 82 is positioned in communication with the rib 162 to provide an inner surface 169.
  • the polymer section 82 is an annular ring in contact with the outer rib 162 along the entirety
  • I t is understood the inner surface 169 has a polished surface 70.
  • the first hemispherical component 4 of the canister 102 comprises an inner rib 152.
  • 30 hemi spherics 1 component pol ymer section seal 83 is positioned in communication with the inner rib 152 to provide an inner rib outer surface 172.
  • the f irst hemispherical component polymer section 83 is an annular ring in contact with the inner rib 152 along the entirety
  • the outer surface 172 provides for a polished surface 70. Contact between the polished inner surface (169, 70) and the polished outer surface (70, 172) provides the same sealing and structural properties as
  • the polymer sections (82, 83) are preferably comprised of a thermoplastic elastomer (TPE) .
  • TPE thermoplastic elastomer
  • a second hemispherical component channel polymer section seal 84 is positioned in the channel € €77 of the second hemispherical component 6.
  • the polymer section 84 is an annular ring in contact with the surfaces of the channel 67 along the entirety of the second hemispherical component
  • the polymer sections (82, 83) are preferably comprised of a thermoplastic elastomer (TPE) .
  • TPE thermoplastic elastomer
  • the polymer section 82 is co-molded with the second hemispherical component 6. As illustrated in Figure 11A, when the first hemispherical component 4 and second
  • 25 hemispherical component 6 are in contact as previously described.
  • the rib 52 compresses the polymer section 84 along the entirety of the second hemispherical component base perimeter 30, to provide far an additional mode of sealing the canister 202, in addition to the modes
  • FIGS. 12 and 12A describe a fourth embodiment of the canister 302.
  • the canister 302 incorporates the f irst hemispherical component 4 , with the polymer section 83, of the described with respect to canister 102 , above. Further,
  • canister 302 combines the polished outer rib inner surface (169, 70) of canister 110022 aanndd tthhee second hemispherical component channel polymer section 84 of canister 202 to provide for a second hemispherical component polymer section sseeaall 85.
  • the polymer section 85 is preferably
  • TPE thermoplastic elastomer
  • the polymer section 85 is co-molded with the second hemispherical component 6.
  • the canister 302 provides for the same sealing and structural support properties as described in the previous
  • a further beltline latch 129 is iilllluussttrraatteedd, which can be incorporated into any of the embodiments, noted above,
  • the hemispherical components 4 and 6 of the canister 2 are
  • 173 is provides a th rough hole through the first hemispherical component outer rib 50 of the canister
  • the latch 129 is connected to the outer flange, at a first location 74 of the opening 173, at a latch first end 75.
  • the latch 129 provides for a manual tab 86 extending from the latch first end 75, and a substantially vertical section 87 extending substantially
  • the vertical section 87 terminates with a vertical section top surface 88, which is colored.
  • the lip 34 rests upon, and is in communi cation with, the vertical section top surface 88. Therefore, the color shading on the vertical section top surface 88 is not visible, thereby verifying the hemispherical components (4, 6) are combined and
  • Each latch is designed to provide stiffness to resist excessive deformation under high vacuum loading .
  • the canister 502 incorporates tthhee sseeccoonndd hemispherical component 6 as previously described, but incorporates a first hemispherical component 104.
  • the first hemispherical component 1C4 differs from the previously described first
  • the interior latch mechanisms 89 comprise a wedge configuration with the angled ssuurrffaaccee 9933 ooff the wedge providing a tapered section 91 in close proximity to the f irst hemispherical component base 20 and a substantially horizontal surface 92 , wherein the tampered section 91 and
  • the canister 402 has at least one internal latch mechanism 89, but preferably multiple latch mechanisms 89, e . g. six. As illustrated in Figure 14B, the sealing properties and structural properties are as
  • the lip extension surface 68 of the lip 34 of the second hemispherical component oouutteerr rriibb 6622 rests upon the horizontal surface 92 when the hemispherical components (104 , 6) of the canister 402 are combined to provide for a
  • the internal latch 89 provides for a mechanism to retain the hemispherical components in position.
  • Each latch is designed to provide stiffness to resist excessive deformation under high vacuum loading.
  • a sixth embodiment of the canister 502 is illustrated.
  • a second hemispherical component channel adhesive seal. 94 is positioned in the channel 67 of the second hemispherical component 6. The adhesive 94
  • the rib 52 compresses the adhesive 94 along the entirety of the second hemispherical component base perimeter 30, resulting in the hemispherical components forming a unitary one piece construction . This provides for additional structural and sealing for the canister 502.
  • the layered orientation of the ribs structurally provides for the f irst hemispherical component inner r ib (52, 152) to sealably contact the second hemispherical component outer annular rib (62, 162 ) , as well as a polymer section 84 or
  • the canister beltline 36 has a smooth contour.
  • Figures 16 and 17 demonstrate the sealing properties of the p prreesseenntt invention.
  • connection location 95 of the hemispherical components (4, 104, 6) is illustrated. Unlike the prior art canisters, where the connection location between the lid and the l iquid well of the canister is located above the fluid level line of the liquid, the connection location 95
  • the canister beltline 36 is positioned approximately equidistant between the first hemispherical component pole 22 and the second hemispherical component,
  • the canister beltline 36 is nnoott positioned in close proximity to the first hemispherical component pole 22.
  • fluid 9? can f ill the cavity 40 such that the fluid level line 96 is above the beltline 36, and connection location 95. It is
  • the beltline 36 is located within the collection height 106 of the collection volume 108 of the canister volume 40.
  • the sealing properties of the canister, between the hemispherical components (4, 104 , 6) provides for an airtight and liquid tight seal allowing the fluid level line
  • the spherical, ellipsoidal, or nearly spherical design, design of the present invention maintains aa nearly uniform pressure distribution which
  • the canister 2 without a risk of a ref lux event.
  • the canister 2 structurally resists deformation during a vacuum process . Therefore, when a vacuum is applied to the canister 2, the canister 2 does not store sufficient mechanical energy from deformation of the canister, thereby
  • indicia 145 is illustrated on the second hemispherical component 6 .
  • the indicia provide smaller increments at lower volumes .
  • the domed shape of the sphere alternatively the ellipsoidal shape, provides fox an increased distance between low volume indicia 145 as compared to low volume indicia of the
  • the indicia may extend parallel to the beltline.
  • the canister (602, 702, 802) may have an ellipsoid shape made of the hemispherical components (4, 104, 6) connected at the beltline 36 aass previously described. As illustrated in
  • the canister 902 may have an elongated ellipsoid
  • TThhee first hemisphere component (4, 104) is connected to the cylinder section along a f irst beltline (36, 114) . Opposite the first beltline, the section
  • the 10 cylinder is connected to the second hemispherical component 6 along a second beltline (36, 116) .
  • the first beltline and the second beltline comprise the properties of the beltline 36 as previously described.
  • the invention provides a durable, fluid tight container that minimizes the potential for fluid spills in aa cost- effective and ef f icient manner. As a result, whether absent a vacuum, uunnddeerr low vacuum oorr under high vacuum, the
  • canister 2 provides a continuous seal about the canister beltline 36 ensuring safe and efficient storage and disposal of fluids , Tt should be noted that the various features of the various embodiments could be combined and fall within the scope of the present invention.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • External Artificial Organs (AREA)
EP21939576.1A 2021-04-29 2021-11-11 Kugelförmiger kanister Pending EP4330157A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17/243,907 US20220031926A1 (en) 2020-07-28 2021-04-29 Spherical Canister
PCT/US2021/058907 WO2022231654A1 (en) 2021-04-29 2021-11-11 Spherical canister

Publications (2)

Publication Number Publication Date
EP4330157A1 true EP4330157A1 (de) 2024-03-06
EP4330157A4 EP4330157A4 (de) 2025-03-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21939576.1A Pending EP4330157A4 (de) 2021-04-29 2021-11-11 Kugelförmiger kanister

Country Status (3)

Country Link
EP (1) EP4330157A4 (de)
JP (1) JP2024516684A (de)
WO (1) WO2022231654A1 (de)

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